Zorba Consulting Limited
City, London
27/05/2026
Full time
Principal Software Engineer We are looking for a highly experienced Principal Software Engineer with strong backend engineering expertise and a passion for scalable distributed systems. You will play a key role in shaping architecture, engineering standards, and technical direction across the platform. Join a fast-growing Banking SaaS provider building next generation core banking technology. We are looking for Principal Software Engineers with experience in Node.js / TypeScript / JavaScript, .NET / C#, or Java. You will work directly on customer problems, understand the business context and own solutions end-to-end. From concept and design through to development, release, monitoring and operational support. You will join a team building a modern, scalable core banking platform. This requires intellectual curiosity, discipline, and deep architectural thinking to build technology capable of evolving alongside regulatory and technological change. Location: Remote-first but UK-based for essential company events. Travel to London will be required on a quarterly basis for team meetings, with 2 companywide annual meetings offsite. Salary : £100,000 To £120,000 (Based on Experience) plus Benefits including 25 days holiday + bank holidays, Family Health Insurance, Life Insurance, Regular social events What You ll Work On The environment is primarily Node.js and Go but strong engineers from .NET/C# or Java backgrounds are encouraged to apply. Integrating with payment platforms, banking infrastructure, FX/crypto providers, and card processors Driving architectural decisions across distributed systems and cloud infrastructure Leading technical design reviews and influencing engineering best practices Mentoring engineers and helping scale a high-performing engineering culture Designing and optimising SQL and NoSQL data models Developing APIs, asynchronous workflows, and event-streaming pipelines Deploying secure, high availability services across AWS, GCP, and Azure How Engineering Works We heavily utilise agentic coding and AI-assisted development workflows, including Claude Code, to accelerate engineering productivity Principal Engineers play a key role in technical strategy, architecture governance and engineering direction Engineers focus on solving complex technical and domain challenges rather than repetitive boilerplate development Collaborative engineering culture with involvement in architecture, design discussions, and domain modelling End-to-end ownership of features from development and testing through to deployment, monitoring, and production support Experience Required Degree educated Development experience in either Node.js with JavaScript & Typescript, .NET, C# or Java AWS experience preferred (Azure, GCP also welcomed) Strong understanding of relational databases, ideally MySQL Interest in agentic engineering workflows and AI-assisted development Experience designing APIs and distributed systems Proven experience designing and scaling complex distributed systems Strong architectural leadership experience Experience mentoring or leading senior engineers/teams Ability to influence technical direction across multiple workstreams Experience operating within high-scale or regulated environments Nice to have: Expertise in AWS Lambda, Fargate, SQS/SNS, DynamoDB and cloud native architectures Client-facing experience Ideally experience within Fintech, Banking or enterprise SaaS Why Join Opportunity to shape the architecture of a next-generation banking platform High level of technical autonomy and influence Ability to help define engineering practices in an AI-assisted development environment Enjoy the freedom of remote-first work with regular in-person meetings. High trust, low bureaucracy and a culture of respect & accountability. Competitive salary, benefits, and a company that celebrates your success. Perks 25 days holiday + bank holidays; Family Health Insurance, Life Cover, EMI Share Options (you will share in their success), Remote working environment (quarterly meetings in London). Zorba Consulting is operating as an employment agency for permanent recruitment and employment business for supplying temporary workers