Senior Golang Developer - Kubernetes - Financial Services Excellent opportunity opens for an experienced Developer strong on Golang with experience in AWS and Kubernetes to join a highly regarded Financial Services entity's London office. You will act as the team lead and play a key role in building mission-critical financial applications that power trading, investment, and risk management systems across the firm. If you are passionate about working in a dynamic, fast-paced environment and are eager to apply your technical expertise to the financial services industry, this is the role for you. Key Responsibilities: Design, develop, and maintain high-performance Back End services using GoLang to support financial applications and services , including trading platforms, investment systems, and risk management tools. Build and deploy cloud-based solutions using Amazon Web Services (AWS), including services such as EC2, S3, RDS, DynamoDB, and Lambda to create scalable, reliable, and secure infrastructure. Implement and manage containerized applications using Kubernetes, ensuring seamless orchestration, scaling, and resilience in a cloud environment. Write clean, efficient, and well-documented code while following best practices for financial systems development, focusing on performance and security. Collaborate with other development teams, business analysts, and stakeholders to define and refine requirements, and ensure that applications meet financial regulatory standards and business needs. Optimize the performance of Back End services, ensuring low-latency responses and high availability, critical for financial services. Implement CI/CD pipelines, automated testing, and monitoring systems to ensure the reliability and stability of production systems. Proactively identify issues and bottlenecks in existing systems and propose solutions to improve the system's performance and scalability. Stay updated with new tools, technologies, and industry trends in cloud computing, containerization, and financial systems to continuously improve development practices and outcomes. Ideal Skills: Proven experience (2+ years) in GoLang Back End development, with a strong focus on performance optimization and building scalable systems for high-volume, high-frequency financial applications. Strong experience working with Amazon Web Services (AWS), including EC2, S3, RDS, DynamoDB, Lambda, and other cloud-native technologies. Hands-on experience with Kubernetes for deploying, managing, and scaling containerized applications in a cloud environment. Solid understanding of financial systems and services, particularly in areas such as trading platforms, investment management, and risk analytics. Experience in building microservices architectures and working with APIs (RESTful, gRPC, etc.) to integrate various systems. Strong knowledge of containerization (Docker) and continuous integration/deployment (CI/CD) practices. Experience with database systems (relational and NoSQL) and working with financial data. Familiarity with DevOps practices and tools to streamline the development life cycle, such as infrastructure-as-code (eg, Terraform or CloudFormation). Ability to troubleshoot and resolve issues in production environments, ensuring uptime and performance in high-pressure, mission-critical scenarios. Excellent communication skills to collaborate effectively with cross-functional teams and stakeholders in a fast-paced financial environment. Experience with serverless computing (AWS Lambda, etc.) to create efficient and scalable solutions. Knowledge of financial industry regulations and standards, particularly around data security and privacy. Familiarity with event-driven architectures or message queues (eg, Kafka, RabbitMQ) for Real Time data processing. Experience with automated testing frameworks and continuous delivery tools like Jenkins, GitLab CI, or CircleCI. Understanding of performance monitoring and observability tools such as CloudWatch, Prometheus, or Datadog. Interested? Please Apply! Golang Go AWS Kubernetes Terraform Bank Banking Finance Financial Services Crypto Blockchain Web3 Trading Exchange Digital Assets Hybrid Flexible Developer Software Engineer Backend Developer Golang Engineer Kafka Apache Kafka RabbitMQ AWS Lambda Cloud Platform
02/03/2026
Full time
Senior Golang Developer - Kubernetes - Financial Services Excellent opportunity opens for an experienced Developer strong on Golang with experience in AWS and Kubernetes to join a highly regarded Financial Services entity's London office. You will act as the team lead and play a key role in building mission-critical financial applications that power trading, investment, and risk management systems across the firm. If you are passionate about working in a dynamic, fast-paced environment and are eager to apply your technical expertise to the financial services industry, this is the role for you. Key Responsibilities: Design, develop, and maintain high-performance Back End services using GoLang to support financial applications and services , including trading platforms, investment systems, and risk management tools. Build and deploy cloud-based solutions using Amazon Web Services (AWS), including services such as EC2, S3, RDS, DynamoDB, and Lambda to create scalable, reliable, and secure infrastructure. Implement and manage containerized applications using Kubernetes, ensuring seamless orchestration, scaling, and resilience in a cloud environment. Write clean, efficient, and well-documented code while following best practices for financial systems development, focusing on performance and security. Collaborate with other development teams, business analysts, and stakeholders to define and refine requirements, and ensure that applications meet financial regulatory standards and business needs. Optimize the performance of Back End services, ensuring low-latency responses and high availability, critical for financial services. Implement CI/CD pipelines, automated testing, and monitoring systems to ensure the reliability and stability of production systems. Proactively identify issues and bottlenecks in existing systems and propose solutions to improve the system's performance and scalability. Stay updated with new tools, technologies, and industry trends in cloud computing, containerization, and financial systems to continuously improve development practices and outcomes. Ideal Skills: Proven experience (2+ years) in GoLang Back End development, with a strong focus on performance optimization and building scalable systems for high-volume, high-frequency financial applications. Strong experience working with Amazon Web Services (AWS), including EC2, S3, RDS, DynamoDB, Lambda, and other cloud-native technologies. Hands-on experience with Kubernetes for deploying, managing, and scaling containerized applications in a cloud environment. Solid understanding of financial systems and services, particularly in areas such as trading platforms, investment management, and risk analytics. Experience in building microservices architectures and working with APIs (RESTful, gRPC, etc.) to integrate various systems. Strong knowledge of containerization (Docker) and continuous integration/deployment (CI/CD) practices. Experience with database systems (relational and NoSQL) and working with financial data. Familiarity with DevOps practices and tools to streamline the development life cycle, such as infrastructure-as-code (eg, Terraform or CloudFormation). Ability to troubleshoot and resolve issues in production environments, ensuring uptime and performance in high-pressure, mission-critical scenarios. Excellent communication skills to collaborate effectively with cross-functional teams and stakeholders in a fast-paced financial environment. Experience with serverless computing (AWS Lambda, etc.) to create efficient and scalable solutions. Knowledge of financial industry regulations and standards, particularly around data security and privacy. Familiarity with event-driven architectures or message queues (eg, Kafka, RabbitMQ) for Real Time data processing. Experience with automated testing frameworks and continuous delivery tools like Jenkins, GitLab CI, or CircleCI. Understanding of performance monitoring and observability tools such as CloudWatch, Prometheus, or Datadog. Interested? Please Apply! Golang Go AWS Kubernetes Terraform Bank Banking Finance Financial Services Crypto Blockchain Web3 Trading Exchange Digital Assets Hybrid Flexible Developer Software Engineer Backend Developer Golang Engineer Kafka Apache Kafka RabbitMQ AWS Lambda Cloud Platform
A leading technology company is seeking a Senior Backend Engineer to join their Product Engineering team. This fully remote role focuses on developing secure tools for digital assets in a post-quantum world. Key responsibilities include evolving critical core libraries, designing blockchain transaction logic, and ensuring security in cryptographic operations. Ideal candidates should have strong Rust and Typescript skills, experience in Web3 development, and proficiency in automated testing. Join a diverse team committed to equal opportunity.
10/02/2026
Full time
A leading technology company is seeking a Senior Backend Engineer to join their Product Engineering team. This fully remote role focuses on developing secure tools for digital assets in a post-quantum world. Key responsibilities include evolving critical core libraries, designing blockchain transaction logic, and ensuring security in cryptographic operations. Ideal candidates should have strong Rust and Typescript skills, experience in Web3 development, and proficiency in automated testing. Join a diverse team committed to equal opportunity.
About Project Eleven Project Eleven is an applied lab of builders and technologists working at the intersection of quantum computing and cryptography. We build impactful solutions that push the digital-asset ecosystem to a more secure future. Our focus is post-quantum migration: upgrading wallets, identity, and settlement rails to quantum-safe primitives without breaking UX, composability, and developer workflows. Our mission is to future-proof digital assets and preserve self-sovereignty in a post-quantum world. We do that by building the canonical tooling and products teams can adopt: crypto agile infrastructure, reference implementations, and integrations that fit real constraints like latency, cost, compatibility, key rotation, and recovery. We work with leading ecosystems to make this migration real through products we build, audits, testnets, and cutting edge research. The vision we are have is clear: a proven upgrade path, production ready tooling and users retaining control of their assets and identity, before CRQC exists. The role We're looking for a Senior Backend Engineer to join our growing Product Engineering team. As a Backend Engineer, you'll play a pivotal role in helping to build the canonical tools and products to protect digital assets and preserve self sovereignty in a post quantum world. This role is a full time, fully remote position in Europe (GMT to GMT+2). What you'll be responsible for Own and evolve a security critical core library used by multiple applications and runtimes Design, implement, and maintain execution logic for blockchain transactions, signing flows, and protocol interactions Build and maintain robust abstractions over blockchain RPCs, transaction construction, and network interactions Enforce strict security boundaries around key handling, signing, and cryptographic operations Define and uphold API stability guarantees, versioning strategy, and backward compatibility policies Contribute to internal security standards, documentation, and engineering best practices What you bring Strong proficiency in Rust & Typescript (ideally both) Experience building performant backend services, APIs and libraries at production scale Practical experience in Web3 development e.g. Ethereum JSON RPC, Viem/Ethers, Contract ABIs, call encoding/decoding etc Good knowledge of CI/CD, service deployments, containerisation Strong security knowledge e.g. authentication/authorization, signature verification, secrets management, encryption (especially post quantum) High competency with automated testing e.g. unit, integration and e2e testing Strong English communication What we'd love to see Understanding of ERC 4337 smart wallet patterns e.g. EOA vs AA concepts, multisig basics, validation flows, bundlers/paymasters Experience with frontend development in React (or similar) Experience with iOS development or mobile development using React Native Experience developing and maintaining protocols Experience with decentralised identity, DIDComm, encrypted messaging protocols Open source contributions to Web3, Account Abstraction, Decentralised identity, Cryptography Equal Opportunity We are committed to equal employment opportunity and believe that diverse teams build better products. All qualified applicants will receive consideration without regard to any protected characteristic under applicable law.
10/02/2026
Full time
About Project Eleven Project Eleven is an applied lab of builders and technologists working at the intersection of quantum computing and cryptography. We build impactful solutions that push the digital-asset ecosystem to a more secure future. Our focus is post-quantum migration: upgrading wallets, identity, and settlement rails to quantum-safe primitives without breaking UX, composability, and developer workflows. Our mission is to future-proof digital assets and preserve self-sovereignty in a post-quantum world. We do that by building the canonical tooling and products teams can adopt: crypto agile infrastructure, reference implementations, and integrations that fit real constraints like latency, cost, compatibility, key rotation, and recovery. We work with leading ecosystems to make this migration real through products we build, audits, testnets, and cutting edge research. The vision we are have is clear: a proven upgrade path, production ready tooling and users retaining control of their assets and identity, before CRQC exists. The role We're looking for a Senior Backend Engineer to join our growing Product Engineering team. As a Backend Engineer, you'll play a pivotal role in helping to build the canonical tools and products to protect digital assets and preserve self sovereignty in a post quantum world. This role is a full time, fully remote position in Europe (GMT to GMT+2). What you'll be responsible for Own and evolve a security critical core library used by multiple applications and runtimes Design, implement, and maintain execution logic for blockchain transactions, signing flows, and protocol interactions Build and maintain robust abstractions over blockchain RPCs, transaction construction, and network interactions Enforce strict security boundaries around key handling, signing, and cryptographic operations Define and uphold API stability guarantees, versioning strategy, and backward compatibility policies Contribute to internal security standards, documentation, and engineering best practices What you bring Strong proficiency in Rust & Typescript (ideally both) Experience building performant backend services, APIs and libraries at production scale Practical experience in Web3 development e.g. Ethereum JSON RPC, Viem/Ethers, Contract ABIs, call encoding/decoding etc Good knowledge of CI/CD, service deployments, containerisation Strong security knowledge e.g. authentication/authorization, signature verification, secrets management, encryption (especially post quantum) High competency with automated testing e.g. unit, integration and e2e testing Strong English communication What we'd love to see Understanding of ERC 4337 smart wallet patterns e.g. EOA vs AA concepts, multisig basics, validation flows, bundlers/paymasters Experience with frontend development in React (or similar) Experience with iOS development or mobile development using React Native Experience developing and maintaining protocols Experience with decentralised identity, DIDComm, encrypted messaging protocols Open source contributions to Web3, Account Abstraction, Decentralised identity, Cryptography Equal Opportunity We are committed to equal employment opportunity and believe that diverse teams build better products. All qualified applicants will receive consideration without regard to any protected characteristic under applicable law.
Overview About Ledger We're a team of experts pushing the limits of what's possible, united by our common goal to unlock true freedom through digital ownership, making technology accessible for all. We believe in a world where users, creators and enterprises manage their value with ownership and freedom. Our curiosity drives us to innovate, empowering individuals on a global scale. We believe change is constant and our team moves forward as one, with a culture of problem-solving where every employee is empowered and supported to challenge tradition and create solutions. Our mission is simple: to make self-custody accessible and give people the keys to their own financial futures. If you want to make a true impact, we want you to join us at Ledger. At Ledger, we're proud to be the global platform for digital assets and Web3, with over 20% of the world's crypto assets secured through our Ledger devices. With our headquarters in Paris, and offices in Vierzon, Grenoble, Montpellier, London, Portland, Geneva, Zurich and Central Singapore, we have a team of around 600 professionals developing a variety of products and services to enable individuals and companies to securely buy, store, swap, grow and manage crypto assets - including the Ledger hardware wallets line with more than 7.5 millions units already sold in 200 countries. The Team You will join the Engagement Team, a vital squad whose purpose is to empower the business to ideate and implement initiatives designed to boost user engagement within the Ledger Wallet. The team is focused on driving value by increasing user interaction with key features and streamlining activation for new users. We operate in a collaborative Agile environment, regularly shipping value to our customers. The Role As a Senior Frontend Engineer, you won't just be writing code; you will be identifying the right problems to solve. You will extend your influence to help the team deliver, taking end-to-end ownership for features from start to finish, from inputting into initial design all the way through to implementation and delivery. You will work on Ledger Wallet (React.js, Electron, React Native), using your experience to make trade-offs that have the highest impact on customers as efficiently as possible. Engineering & Delivery: Use your expertise to iterate, relying on strong instincts to pragmatically drive the right outcomes while balancing speed and depth. You will be trusted to lead business-critical projects, writing high-quality code that focuses on meaningful outcomes. Technical Design: Be comfortable with ambiguity and adept at navigating product challenges. You will actively input into shaping technical vision, ensuring solutions consider scalability and reliability, and thrive in early ideation stages by sharing work-in-progress to gather feedback early. Quality & Best Practices: Set a high bar for collaboration and sound decision-making. You will manage technical debt pragmatically, strategically balancing resilience and testing with the need to make quick trade-offs to ship products that prioritize impact. Mentoring: Work collaboratively as part of a team of high-performing engineers with the aim of levelling-up those around you. You will conduct code reviews and provide actionable feedback to help junior engineers improve. Collaboration: Engage closely with Product Managers and Designers to better understand what problems we can solve. You will prioritise clear communication, from well-written proposals to clear commit messages and pull requests. What we're looking for Technical Proficiency: Experience building production-ready applications using JavaScript, TypeScript, and React.js. Experience with React Native and Electron is a strong plus. Consumer Product Background: Prior experience working on consumer products. Industries such as Fintech or Crypto are preferable but not mandatory Ownership: A track record of acting as a "go-to" person. You are comfortable with ambiguity and can define problems clearly, thinking big but scoping small to ensure delivery. Product Mindset: A strong customer-focused approach to building software. You are used to prioritising outcomes and impact over all else and interacting with stakeholders to understand their needs. Quality Focused: You proactively admit mistakes and focus on maintaining and improving documentation. You make pragmatic decisions about testing levels to ensure confidence without slowing down velocity. Agile Experience: Comfortable working in a Scrum environment with a focus on continuous delivery and improvement Benefits At Ledger, we are dedicated to continually investing in our employees which is why we offer more than just salaries; we provide comprehensive compensation packages that include a wide range of benefits. Here are some of the benefits you can look forward to: Flexible work options - Our hybrid policy allows employees to work from home up to 3 times per week Health & Wellness support - Health and Life Insurance. Financial growth opportunities - Employees can become shareholders in Ledger as well as other financial benefits depending on your country of work. Commuter allowance - Ledger offers a commuter allowance to contribute to your preferred means of transportation. Learning & Development - A comprehensive suite of training solutions providing a personalised learning experience for every employee. For regionally specific benefits, your Talent Acquisition contact will be able to provide you with more information. We're committed to building an inclusive hiring process. If you need any adjustments or accommodations, just let us know, we'll do our best to support you.
08/02/2026
Full time
Overview About Ledger We're a team of experts pushing the limits of what's possible, united by our common goal to unlock true freedom through digital ownership, making technology accessible for all. We believe in a world where users, creators and enterprises manage their value with ownership and freedom. Our curiosity drives us to innovate, empowering individuals on a global scale. We believe change is constant and our team moves forward as one, with a culture of problem-solving where every employee is empowered and supported to challenge tradition and create solutions. Our mission is simple: to make self-custody accessible and give people the keys to their own financial futures. If you want to make a true impact, we want you to join us at Ledger. At Ledger, we're proud to be the global platform for digital assets and Web3, with over 20% of the world's crypto assets secured through our Ledger devices. With our headquarters in Paris, and offices in Vierzon, Grenoble, Montpellier, London, Portland, Geneva, Zurich and Central Singapore, we have a team of around 600 professionals developing a variety of products and services to enable individuals and companies to securely buy, store, swap, grow and manage crypto assets - including the Ledger hardware wallets line with more than 7.5 millions units already sold in 200 countries. The Team You will join the Engagement Team, a vital squad whose purpose is to empower the business to ideate and implement initiatives designed to boost user engagement within the Ledger Wallet. The team is focused on driving value by increasing user interaction with key features and streamlining activation for new users. We operate in a collaborative Agile environment, regularly shipping value to our customers. The Role As a Senior Frontend Engineer, you won't just be writing code; you will be identifying the right problems to solve. You will extend your influence to help the team deliver, taking end-to-end ownership for features from start to finish, from inputting into initial design all the way through to implementation and delivery. You will work on Ledger Wallet (React.js, Electron, React Native), using your experience to make trade-offs that have the highest impact on customers as efficiently as possible. Engineering & Delivery: Use your expertise to iterate, relying on strong instincts to pragmatically drive the right outcomes while balancing speed and depth. You will be trusted to lead business-critical projects, writing high-quality code that focuses on meaningful outcomes. Technical Design: Be comfortable with ambiguity and adept at navigating product challenges. You will actively input into shaping technical vision, ensuring solutions consider scalability and reliability, and thrive in early ideation stages by sharing work-in-progress to gather feedback early. Quality & Best Practices: Set a high bar for collaboration and sound decision-making. You will manage technical debt pragmatically, strategically balancing resilience and testing with the need to make quick trade-offs to ship products that prioritize impact. Mentoring: Work collaboratively as part of a team of high-performing engineers with the aim of levelling-up those around you. You will conduct code reviews and provide actionable feedback to help junior engineers improve. Collaboration: Engage closely with Product Managers and Designers to better understand what problems we can solve. You will prioritise clear communication, from well-written proposals to clear commit messages and pull requests. What we're looking for Technical Proficiency: Experience building production-ready applications using JavaScript, TypeScript, and React.js. Experience with React Native and Electron is a strong plus. Consumer Product Background: Prior experience working on consumer products. Industries such as Fintech or Crypto are preferable but not mandatory Ownership: A track record of acting as a "go-to" person. You are comfortable with ambiguity and can define problems clearly, thinking big but scoping small to ensure delivery. Product Mindset: A strong customer-focused approach to building software. You are used to prioritising outcomes and impact over all else and interacting with stakeholders to understand their needs. Quality Focused: You proactively admit mistakes and focus on maintaining and improving documentation. You make pragmatic decisions about testing levels to ensure confidence without slowing down velocity. Agile Experience: Comfortable working in a Scrum environment with a focus on continuous delivery and improvement Benefits At Ledger, we are dedicated to continually investing in our employees which is why we offer more than just salaries; we provide comprehensive compensation packages that include a wide range of benefits. Here are some of the benefits you can look forward to: Flexible work options - Our hybrid policy allows employees to work from home up to 3 times per week Health & Wellness support - Health and Life Insurance. Financial growth opportunities - Employees can become shareholders in Ledger as well as other financial benefits depending on your country of work. Commuter allowance - Ledger offers a commuter allowance to contribute to your preferred means of transportation. Learning & Development - A comprehensive suite of training solutions providing a personalised learning experience for every employee. For regionally specific benefits, your Talent Acquisition contact will be able to provide you with more information. We're committed to building an inclusive hiring process. If you need any adjustments or accommodations, just let us know, we'll do our best to support you.
About Moonsong Labs Moonsong Labs is a growing Web3 protocol and AI engineering services and venture studio business. We have expertise in developing software to support blockchain and AI implementations. Our venture studio incubates new businesses that are building decentralized developer infrastructure and AI protocols. Examples of our work include the project Moonbeam, a blockchain that implements an Ethereum compatible environment and natively supports cross chain use cases. And Kluster AI () a decentralized large AI model inference and fine tuning platform. Other customers include ZKSync and Starkware. The Protocol & Innovation Team We are looking for a Principal Blockchain Engineer who will help develop core blockchain node software, blockchain infrastructure/tooling and other low level software for various blockchain networks including for the Moonbeam Network (), zkSync, Starkware and Polkadot. Problem domains include cryptography, security, networking, game theory, zero knowledge, finance, political science, and programming language design. The Role The Principal Engineer is responsible for scoping, designing, and implementing web3 and blockchain solutions across a variety of technology stacks. They will work with the foundation, gathering requirements and presenting solutions in an easy to understand way. They will be responsible for providing technical inputs to proposals, driving technical designs, managing engineering teams, participating in implementation, deployment, etc. The ideal candidate has at least 5 years experience in a hands on software engineering lead role. Web3 experience including expert level knowledge of Blockchain Protocol Development and Ethereum is essential. Experience with systems programming, complex systems implementation, and Rust are also highly desirable. Experience leading web3 infrastructure protocol teams or engineering services teams will make for a great fit. We expect you to bring your ideas, experience, and knowledge to develop protocols for Moonsong Labs customers which include leading web3 foundations. Reach out to us if you are interested in helping to drive a multichain future, where users have scalable blockchain agnostic experiences without sacrificing decentralization. What you'll do: Work with customers and prospects to scope, understand, and document technical requirements. Drive protocol technical architecture and designs that meet requirements. Define and execute protocol implementation strategy, work closely with other team leads and stakeholders to implement and execute strategies. Manage and organize a technical team to deliver the protocol. Ensure code quality and software reliability through automated test implementations and processes. Implement and manage automated deployment and operations of protocol. Create high quality software documentation and other written assets to document and explain the system design and how the system functions. Learn and stay current with all necessary technologies. Research different ecosystems and technology stacks as needed. Communicate regularly and clearly, verbally and in written form, with other team members and also with other partners, vendors, and community members. What you'll bring: 5+ years experience in a hands on backend software engineering role. 2+ years blockchain protocol implementation experience using C++, Rust, or Golang. Experience leading small teams of engineers, directing both the design and managing the team's day to day activities. Strong automated testing and security experience, including working with third party audit firms. Experience working on developer tools and infrastructure protocols is highly desirable. Knowledge of L2s, ZK, EVM, CosmosSDK, and Substrate is highly desirable. Experience implementing L1 and L2 blockchains is a plus. Knowledge of Ethereum and EVM is a plus. Good writing skills with an ability to explain complex concepts in a clear and accessible way. Attention to detail while working well under pressure. Undergraduate degree required. Perks and Benefits: 100% Remote Flexible vacation policy Health and Dental plans (for US based employees) Direct line of access to Managing Partners and senior leadership; A flat organizational structure and the camaraderie of working alongside committed professionals focused on providing dedicated mentorship, respectful feedback, and career advancement Continuous learning & development 20% time to collaborate on other projects within MSL or on side projects Ready to Shape the Future? Join Us Today! Equal Opportunity is the law, and at Moonsong Labs, we are ardently committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, or Veteran status. If you have a specific need that requires accommodation, please let us know.
03/02/2026
Full time
About Moonsong Labs Moonsong Labs is a growing Web3 protocol and AI engineering services and venture studio business. We have expertise in developing software to support blockchain and AI implementations. Our venture studio incubates new businesses that are building decentralized developer infrastructure and AI protocols. Examples of our work include the project Moonbeam, a blockchain that implements an Ethereum compatible environment and natively supports cross chain use cases. And Kluster AI () a decentralized large AI model inference and fine tuning platform. Other customers include ZKSync and Starkware. The Protocol & Innovation Team We are looking for a Principal Blockchain Engineer who will help develop core blockchain node software, blockchain infrastructure/tooling and other low level software for various blockchain networks including for the Moonbeam Network (), zkSync, Starkware and Polkadot. Problem domains include cryptography, security, networking, game theory, zero knowledge, finance, political science, and programming language design. The Role The Principal Engineer is responsible for scoping, designing, and implementing web3 and blockchain solutions across a variety of technology stacks. They will work with the foundation, gathering requirements and presenting solutions in an easy to understand way. They will be responsible for providing technical inputs to proposals, driving technical designs, managing engineering teams, participating in implementation, deployment, etc. The ideal candidate has at least 5 years experience in a hands on software engineering lead role. Web3 experience including expert level knowledge of Blockchain Protocol Development and Ethereum is essential. Experience with systems programming, complex systems implementation, and Rust are also highly desirable. Experience leading web3 infrastructure protocol teams or engineering services teams will make for a great fit. We expect you to bring your ideas, experience, and knowledge to develop protocols for Moonsong Labs customers which include leading web3 foundations. Reach out to us if you are interested in helping to drive a multichain future, where users have scalable blockchain agnostic experiences without sacrificing decentralization. What you'll do: Work with customers and prospects to scope, understand, and document technical requirements. Drive protocol technical architecture and designs that meet requirements. Define and execute protocol implementation strategy, work closely with other team leads and stakeholders to implement and execute strategies. Manage and organize a technical team to deliver the protocol. Ensure code quality and software reliability through automated test implementations and processes. Implement and manage automated deployment and operations of protocol. Create high quality software documentation and other written assets to document and explain the system design and how the system functions. Learn and stay current with all necessary technologies. Research different ecosystems and technology stacks as needed. Communicate regularly and clearly, verbally and in written form, with other team members and also with other partners, vendors, and community members. What you'll bring: 5+ years experience in a hands on backend software engineering role. 2+ years blockchain protocol implementation experience using C++, Rust, or Golang. Experience leading small teams of engineers, directing both the design and managing the team's day to day activities. Strong automated testing and security experience, including working with third party audit firms. Experience working on developer tools and infrastructure protocols is highly desirable. Knowledge of L2s, ZK, EVM, CosmosSDK, and Substrate is highly desirable. Experience implementing L1 and L2 blockchains is a plus. Knowledge of Ethereum and EVM is a plus. Good writing skills with an ability to explain complex concepts in a clear and accessible way. Attention to detail while working well under pressure. Undergraduate degree required. Perks and Benefits: 100% Remote Flexible vacation policy Health and Dental plans (for US based employees) Direct line of access to Managing Partners and senior leadership; A flat organizational structure and the camaraderie of working alongside committed professionals focused on providing dedicated mentorship, respectful feedback, and career advancement Continuous learning & development 20% time to collaborate on other projects within MSL or on side projects Ready to Shape the Future? Join Us Today! Equal Opportunity is the law, and at Moonsong Labs, we are ardently committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, or Veteran status. If you have a specific need that requires accommodation, please let us know.
