Backend Engineer About Outpost What if going global was as simple as going local? Outpost is building the AI global trade engine. The accumulated knowledge of every rule you'd need to sell internationally, turned into infrastructure. Tell us what you're selling. We'll tell you how to sell it everywhere. We operate as Merchant of Record or Tax of Record across 58+ tax jurisdictions. Full liability transfer, or just the tax layer. We do the analysis, we handle the setup, we absorb the liability. Sell anything, anywhere. Without compromise. The Role This is a Backend Engineer role for someone who wants to build complex financial infrastructure from scratch. You'll work directly with our engineering leadership to implement payment flows, build tax calculation engines, and create the systems that power international commerce. You'll contribute to product and technical discussions, challenge assumptions, and help guide our technical direction. We're building the infrastructure that lets businesses sell globally without the usual pain. That means payment processing, multi-currency ledgers, real-time tax calculations, merchant onboarding, and AI-powered compliance tools. Hard problems with real scale. What You'll Get Yes, the work is intense. But in return, you'll build critical financial infrastructure that handles hundreds of millions in volume. You'll have significant input into technical direction, work with a small team of experienced engineers, and shape how Outpost scales. If you want to go deep on payments, tax, and fintech infrastructure, this is the role. What You'll Build Payment processing infrastructure handling hundreds of millions in volume Robust ledger and reconciliation systems Tax calculation engines for multiple jurisdictions Real-time transaction monitoring and risk systems Merchant onboarding and integration frameworks Platform connections with major e-commerce systems AI/LLM powered taxation tools AI/LLM powered fraud and risk tools What You'll Do Technical Development Write high-quality, maintainable code Implement core payment and financial systems Build secure, scalable backend services Contribute to system architecture discussions Help establish engineering best practices System Design & Implementation Design and build robust payment processing flows Implement internal ledger and reconciliation systems Create merchant integration frameworks Develop automated monitoring and alerting Handle secure financial data processing Cross-functional Collaboration Work with product team to refine technical requirements Contribute to API design and implementation Collaborate with risk and compliance on system requirements Example Projects Implement a multi-currency ledger that handles real-time reconciliation Create the tax calculation engine for a new jurisdiction Design the merchant onboarding flow and integration framework Build AI-powered tools for automated tax classification Implement real-time fraud detection and risk scoring Create automated reconciliation systems that catch discrepancies before they become problems What We're Looking For Ideal background: Fluency in a JVM-based language, preferably Kotlin Track record of implementing complex backend systems Strong engineering fundamentals and coding practices Bonus: experience building financial, payments, tax, or compliance systems Bonus: familiarity with e-commerce platforms Signals we care about: You write high-quality code and care about maintainability You can design systems, not just implement them You're comfortable with ambiguity and figuring things out You contribute to technical discussions and challenge assumptions You want to build from scratch, not maintain existing systems Bias for action. You ship, you learn, you iterate What this role is not: Not maintaining existing systems. You'll build from scratch Not a role where you wait to be told what to do Not someone who needs heavy process or detailed specs to be effective Not pure execution without input into technical direction Why This Role Is Different Most backend roles are about maintaining or extending existing systems. This role is about building complex financial infrastructure from the ground up. You'll tackle challenges like managing multiple currency ledgers, handling card payment flows, building automated reconciliation systems, and creating AI-powered tax tools. You'll have significant input into our technical direction. If you're excited about building complex payment systems and want to shape the future of international commerce, this is the role. Outpost Team Our team were leaders at Revolut, Airwallex, Adyen and Wayflyer, and we're backed by top-tier investors who have built or backed some of the world's leading fintechs. What We Offer Equity and salary in a well-funded startup Ability to own your work and move fast Direct access to the founding team A global mission with real impact Low politics, high output A culture of builders, not talkers Working Style We work together in person in London. We believe the hardest problems are solved in the room. Learn More Outpost Culture: Notion: Outpost-Culture-18aa047bb9af800b8f6ff5f5c83174b1 Outpost founder: littlegoatlabs Outpost is where the hard problems are. If you want to build the financial infrastructure for global commerce, we'd love to hear from you.
10/07/2026
Full time
Backend Engineer About Outpost What if going global was as simple as going local? Outpost is building the AI global trade engine. The accumulated knowledge of every rule you'd need to sell internationally, turned into infrastructure. Tell us what you're selling. We'll tell you how to sell it everywhere. We operate as Merchant of Record or Tax of Record across 58+ tax jurisdictions. Full liability transfer, or just the tax layer. We do the analysis, we handle the setup, we absorb the liability. Sell anything, anywhere. Without compromise. The Role This is a Backend Engineer role for someone who wants to build complex financial infrastructure from scratch. You'll work directly with our engineering leadership to implement payment flows, build tax calculation engines, and create the systems that power international commerce. You'll contribute to product and technical discussions, challenge assumptions, and help guide our technical direction. We're building the infrastructure that lets businesses sell globally without the usual pain. That means payment processing, multi-currency ledgers, real-time tax calculations, merchant onboarding, and AI-powered compliance tools. Hard problems with real scale. What You'll Get Yes, the work is intense. But in return, you'll build critical financial infrastructure that handles hundreds of millions in volume. You'll have significant input into technical direction, work with a small team of experienced engineers, and shape how Outpost scales. If you want to go deep on payments, tax, and fintech infrastructure, this is the role. What You'll Build Payment processing infrastructure handling hundreds of millions in volume Robust ledger and reconciliation systems Tax calculation engines for multiple jurisdictions Real-time transaction monitoring and risk systems Merchant onboarding and integration frameworks Platform connections with major e-commerce systems AI/LLM powered taxation tools AI/LLM powered fraud and risk tools What You'll Do Technical Development Write high-quality, maintainable code Implement core payment and financial systems Build secure, scalable backend services Contribute to system architecture discussions Help establish engineering best practices System Design & Implementation Design and build robust payment processing flows Implement internal ledger and reconciliation systems Create merchant integration frameworks Develop automated monitoring and alerting Handle secure financial data processing Cross-functional Collaboration Work with product team to refine technical requirements Contribute to API design and implementation Collaborate with risk and compliance on system requirements Example Projects Implement a multi-currency ledger that handles real-time reconciliation Create the tax calculation engine for a new jurisdiction Design the merchant onboarding flow and integration framework Build AI-powered tools for automated tax classification Implement real-time fraud detection and risk scoring Create automated reconciliation systems that catch discrepancies before they become problems What We're Looking For Ideal background: Fluency in a JVM-based language, preferably Kotlin Track record of implementing complex backend systems Strong engineering fundamentals and coding practices Bonus: experience building financial, payments, tax, or compliance systems Bonus: familiarity with e-commerce platforms Signals we care about: You write high-quality code and care about maintainability You can design systems, not just implement them You're comfortable with ambiguity and figuring things out You contribute to technical discussions and challenge assumptions You want to build from scratch, not maintain existing systems Bias for action. You ship, you learn, you iterate What this role is not: Not maintaining existing systems. You'll build from scratch Not a role where you wait to be told what to do Not someone who needs heavy process or detailed specs to be effective Not pure execution without input into technical direction Why This Role Is Different Most backend roles are about maintaining or extending existing systems. This role is about building complex financial infrastructure from the ground up. You'll tackle challenges like managing multiple currency ledgers, handling card payment flows, building automated reconciliation systems, and creating AI-powered tax tools. You'll have significant input into our technical direction. If you're excited about building complex payment systems and want to shape the future of international commerce, this is the role. Outpost Team Our team were leaders at Revolut, Airwallex, Adyen and Wayflyer, and we're backed by top-tier investors who have built or backed some of the world's leading fintechs. What We Offer Equity and salary in a well-funded startup Ability to own your work and move fast Direct access to the founding team A global mission with real impact Low politics, high output A culture of builders, not talkers Working Style We work together in person in London. We believe the hardest problems are solved in the room. Learn More Outpost Culture: Notion: Outpost-Culture-18aa047bb9af800b8f6ff5f5c83174b1 Outpost founder: littlegoatlabs Outpost is where the hard problems are. If you want to build the financial infrastructure for global commerce, we'd love to hear from you.
A fintech startup in Greater London is looking for a Backend Engineer to build complex financial infrastructure from scratch. You will implement payment flows, create tax engines, and develop systems for international commerce. Ideal candidates will have experience with JVM-based languages, particularly Kotlin, and a strong foundation in engineering principles. Join a small team to shape the future of global commerce with significant technical input.
10/07/2026
Full time
A fintech startup in Greater London is looking for a Backend Engineer to build complex financial infrastructure from scratch. You will implement payment flows, create tax engines, and develop systems for international commerce. Ideal candidates will have experience with JVM-based languages, particularly Kotlin, and a strong foundation in engineering principles. Join a small team to shape the future of global commerce with significant technical input.
Frontend Engineer About Outpost What if going global was as simple as going local? Outpost is building the AI global trade engine. The accumulated knowledge of every rule you'd need to sell internationally, turned into infrastructure. Tell us what you're selling. We'll tell you how to sell it everywhere. We operate as Merchant of Record or Tax of Record across 58+ tax jurisdictions. Full liability transfer, or just the tax layer. We do the analysis, we handle the setup, we absorb the liability. Sell anything, anywhere. Without compromise. The Role This is a Frontend Engineer role for someone who wants to build intuitive interfaces for complex financial operations. You'll work directly with our engineering leadership to create the user experiences that power international commerce. Merchant dashboards, payment flows, tax compliance tools, transaction monitoring, and AI-powered analysis interfaces. You'll make complexity feel simple. We believe great design is as much about what you leave out as what you put in. A well-designed interface should feel inevitable, where every element has earned its place and complexity is made manageable through thoughtful design. This isn't just about building beautiful interfaces. You'll tackle challenges like displaying real-time payment flows, building tax compliance tools, and developing merchant analytics. You'll also explore how emerging technologies can enhance our platform, from AI-powered insights to advanced reporting. What You'll Get Yes, the work is intense. But in return, you'll build the interfaces for critical financial infrastructure handling hundreds of millions in volume. You'll have significant input into product and technical direction, work with a small team of experienced engineers, and shape how merchants experience global commerce. If you want to go deep on fintech product design and frontend architecture, this is the role. What You'll Build Modern, responsive merchant dashboard Complex financial workflows and payment interfaces Tax compliance and reporting tools Transaction monitoring and risk management interfaces AI-powered transaction analysis and compliance tools Integrations with major e-commerce platforms A best in class developer experience What You'll Do Technical Development Contribute to frontend architecture and development Build scalable, maintainable React applications Establish frontend best practices and coding standards Drive technical decisions for user interface components Product Development Create intuitive interfaces for complex financial operations Design and implement responsive, cross-browser solutions Build performance-optimized web applications Develop reusable component libraries Integrate with backend services and APIs Special Projects Lead development of AI-enhanced user interfaces Build tools for transaction analysis and insights Create interfaces for automated tax compliance Develop merchant self-service capabilities Explore emerging technologies for platform enhancement Example Projects Build the merchant dashboard from scratch with real-time transaction monitoring Create the tax compliance interface that makes multi-jurisdiction filings feel simple Design and implement payment flow visualizations that surface issues instantly Build AI-powered tools for transaction analysis and anomaly detection Create the integration setup experience for Shopify and other e-commerce platforms Develop the self-service onboarding flow that gets merchants live faster Build a component library that accelerates future product development What We're Looking For Ideal background: TypeScript with strong typing practices and type modeling React with functional components, hooks, context, routing Modular declarative code that prioritises readability and reusability Track record of building complex web applications Understanding of UI/UX best practices Comfortable using LLMs and LLM-powered IDEs to scaffold, refactor, and prototype Bonus: Prior exposure to frontend platform work: design systems, code generation, testing frameworks Experience building internal tools or dashboards Design sensibility or experience collaborating closely with designers Fintech and compliance experience Familiarity with LLM agent frameworks or tools like v0, Lovable Understanding of cross-border commerce E-commerce or SaaS experience Signals we care about: You build interfaces that make complex things feel simple You care about the details that make a product feel polished You're comfortable with ambiguity and figuring things out You contribute to product discussions, not just implement specs You want to build from scratch, not maintain existing systems Bias for action. You ship, you learn, you iterate What this role is not: Not maintaining existing systems. You'll build from scratch Not a role where you wait to be told what to do Not someone who needs heavy process or detailed specs to be effective Not pure execution without input into product direction Why This Role Is Different Most frontend roles are about building features on top of existing products. This role is about creating the entire user experience for complex financial infrastructure. You'll design how merchants interact with payments, tax compliance, and global commerce. You'll explore how AI can enhance these interfaces. You'll have real input into what we build and how it works. If you're excited about building complex financial interfaces and exploring innovative solutions in international commerce, this is the role. Outpost Team Our team were leaders at Revolut, Airwallex, Adyen and Wayflyer, and we're backed by top-tier investors who have built or backed some of the world's leading fintechs. What We Offer Equity and salary in a well-funded startup Ability to own your work and move fast Direct access to the founding team A global mission with real impact Low politics, high output A culture of builders, not talkers Working Style We work together in person in London or Amsterdam. We believe the hardest problems are solved in the room. Learn More Outpost Culture: Outpost founder: Outpost is where the hard problems are. If you want to build the interfaces for global commerce infrastructure, we'd love to hear from you.
04/07/2026
Full time
Frontend Engineer About Outpost What if going global was as simple as going local? Outpost is building the AI global trade engine. The accumulated knowledge of every rule you'd need to sell internationally, turned into infrastructure. Tell us what you're selling. We'll tell you how to sell it everywhere. We operate as Merchant of Record or Tax of Record across 58+ tax jurisdictions. Full liability transfer, or just the tax layer. We do the analysis, we handle the setup, we absorb the liability. Sell anything, anywhere. Without compromise. The Role This is a Frontend Engineer role for someone who wants to build intuitive interfaces for complex financial operations. You'll work directly with our engineering leadership to create the user experiences that power international commerce. Merchant dashboards, payment flows, tax compliance tools, transaction monitoring, and AI-powered analysis interfaces. You'll make complexity feel simple. We believe great design is as much about what you leave out as what you put in. A well-designed interface should feel inevitable, where every element has earned its place and complexity is made manageable through thoughtful design. This isn't just about building beautiful interfaces. You'll tackle challenges like displaying real-time payment flows, building tax compliance tools, and developing merchant analytics. You'll also explore how emerging technologies can enhance our platform, from AI-powered insights to advanced reporting. What You'll Get Yes, the work is intense. But in return, you'll build the interfaces for critical financial infrastructure handling hundreds of millions in volume. You'll have significant input into product and technical direction, work with a small team of experienced engineers, and shape how merchants experience global commerce. If you want to go deep on fintech product design and frontend architecture, this is the role. What You'll Build Modern, responsive merchant dashboard Complex financial workflows and payment interfaces Tax compliance and reporting tools Transaction monitoring and risk management interfaces AI-powered transaction analysis and compliance tools Integrations with major e-commerce platforms A best in class developer experience What You'll Do Technical Development Contribute to frontend architecture and development Build scalable, maintainable React applications Establish frontend best practices and coding standards Drive technical decisions for user interface components Product Development Create intuitive interfaces for complex financial operations Design and implement responsive, cross-browser solutions Build performance-optimized web applications Develop reusable component libraries Integrate with backend services and APIs Special Projects Lead development of AI-enhanced user interfaces Build tools for transaction analysis and insights Create interfaces for automated tax compliance Develop merchant self-service capabilities Explore emerging technologies for platform enhancement Example Projects Build the merchant dashboard from scratch with real-time transaction monitoring Create the tax compliance interface that makes multi-jurisdiction filings feel simple Design and implement payment flow visualizations that surface issues instantly Build AI-powered tools for transaction analysis and anomaly detection Create the integration setup experience for Shopify and other e-commerce platforms Develop the self-service onboarding flow that gets merchants live faster Build a component library that accelerates future product development What We're Looking For Ideal background: TypeScript with strong typing practices and type modeling React with functional components, hooks, context, routing Modular declarative code that prioritises readability and reusability Track record of building complex web applications Understanding of UI/UX best practices Comfortable using LLMs and LLM-powered IDEs to scaffold, refactor, and prototype Bonus: Prior exposure to frontend platform work: design systems, code generation, testing frameworks Experience building internal tools or dashboards Design sensibility or experience collaborating closely with designers Fintech and compliance experience Familiarity with LLM agent frameworks or tools like v0, Lovable Understanding of cross-border commerce E-commerce or SaaS experience Signals we care about: You build interfaces that make complex things feel simple You care about the details that make a product feel polished You're comfortable with ambiguity and figuring things out You contribute to product discussions, not just implement specs You want to build from scratch, not maintain existing systems Bias for action. You ship, you learn, you iterate What this role is not: Not maintaining existing systems. You'll build from scratch Not a role where you wait to be told what to do Not someone who needs heavy process or detailed specs to be effective Not pure execution without input into product direction Why This Role Is Different Most frontend roles are about building features on top of existing products. This role is about creating the entire user experience for complex financial infrastructure. You'll design how merchants interact with payments, tax compliance, and global commerce. You'll explore how AI can enhance these interfaces. You'll have real input into what we build and how it works. If you're excited about building complex financial interfaces and exploring innovative solutions in international commerce, this is the role. Outpost Team Our team were leaders at Revolut, Airwallex, Adyen and Wayflyer, and we're backed by top-tier investors who have built or backed some of the world's leading fintechs. What We Offer Equity and salary in a well-funded startup Ability to own your work and move fast Direct access to the founding team A global mission with real impact Low politics, high output A culture of builders, not talkers Working Style We work together in person in London or Amsterdam. We believe the hardest problems are solved in the room. Learn More Outpost Culture: Outpost founder: Outpost is where the hard problems are. If you want to build the interfaces for global commerce infrastructure, we'd love to hear from you.