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# Senior Software Engineer (Full Stack)

- **Company:** Ocean Infinity
- **Location:** London, UK
- **Experience:** Expert
- **Salary:** £110,000.0
- **Contract:** Permanent contract
- **Skills:** .NET Framework, Multitier Architecture, Agile Methodology, Amazon Web Services, Microsoft Azure, C Sharp (Programming Language), Code Review, Continuous Integration, Relational Databases, Cursor (Graphical User Interface Elements), Software Design Patterns, PostgreSQL, Node.Js, RabbitMQ, Next.js, Web Application Security, SignalR, TypeScript, Web Applications, WebSocket, Cloud Platform System, ReactJS, Backend, Git, Containerization, Kubernetes, Information Technology, Real Time Data, Apache Kafka, Api Design, Stream Processing, Docker
- **Published:** September 16, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5884635143

## About the Role

As with our Senior Engineers, this role is backend-first and stack-plural. Our products run on C#/.NET with React, and on our TypeScript stack (Next.js, tRPC, Node, Postgres). You should be strong enough in backend engineering to set and hold the quality bar wherever the team is building., * Degree in Computer Science, Information Technology, or related;

 * Preferably 6+ years as a software engineer, with production experience across backend services and web frontends;
 * Proven experience as a Tech Lead or in a similar technical-leadership role, owning a team's technical approach and delivery;
 * Strong backend fundamentals: Clean Architecture, design patterns, and API design, with hands-on experience in C#/.NETor Node/TypeScript;
 * Proven experience building single-page web apps with React;
 * Solid experience with relational databases and an ORM, including schema and migration management;
 * Proficiency with TypeScript and Git;
 * Understanding and practice of Agile methodologies;
 * Familiarity with web application security concepts;
 * Fluency in English, spoken and written;
 * Strong communication and the ability to lead by example;
 * Critical thinking, initiative, and an entrepreneurial mindset.

Nice to have!

 * Experience establishing backend patterns or guidelines on a TypeScript/Node stack;
 * Experience with event-driven or event-streaming systems (Kafka, RabbitMQ, or similar);
 * Experience with real-time data (WebSockets, SignalR);
 * Experience with containerisation and orchestration (Docker, Kubernetes);
 * Experience with CI/CD and infrastructure-as-code;
 * Familiarity with a cloud platform (Azure, AWS, or GCP);
 * Strong understanding of quality management, including relevant standards and procedures.

## Description

* Set the technical direction for a fullstack product across backend services and web applications, and stay hands-on writing and reviewing code;
 * Own the how and the when: technical approach, task breakdown, sequencing, capacity, and the quality bar, and be accountable for delivery;
 * Hold the line on backend design discipline, so that services stay maintainable as the team and codebase grow;
 * Collaborate with Product, Design, and QA to define, design, and ship features, distinguishing core engineering work from simpler edge work;
 * Facilitate the team's delivery rhythm (stand-ups, planning, refinement, retrospectives) and remove impediments;
 * Raise the engineering bar through mentorship, code review, and constructive technical feedback;
 * Use AI-assisted development tools (such as Cursor or Claude) as part of your everyday workflow, and help the team use them well;
 * Follow development and quality best practices, and be critical when you believe they can be improved;
 * Document software and processes as needed.


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