Senior Software Engineer - Autonomous Marine Tech (Full-Stack)

Ocean Infinity; Greater London; On-site; GBP 36,000 - 60,000; Full time

Job summary

Ocean Infinity seeks a Senior Software Engineer to design, build, and maintain the products behind our autonomous and remote marine operations. You will work from data models and APIs through to operator and customer interfaces, reporting to a Tech Lead.

The role involves fullstack development across C#/.NET or TS stack, React frontends, and collaboration with engineers to ensure robust, scalable systems.

Qualifications

• Degree in Computer Science, Information Technology, or related field.
• 5+ years as software engineer with production experience on backend and frontend.
• Strong backend fundamentals: REST, clean architecture, design patterns; experience in C#/.NET or Node/TypeScript.

Responsibilities

• Design, build, and maintain fullstack web applications from DB/API to UI.
• Write production backend services in C#/.NET or TypeScript/Node.
• Build React UIs (Next.js on TypeScript products).
• Manage relational DB schemas, queries, migrations.
• Integrate real-time data flows and robotics-to-web pipelines.
• Use AI-assisted development tools in daily workflow.
• Follow and improve development and quality practices.
• Mentor junior engineers through guidance and feedback.

Skills

5+ years experience

C#/.NET

Node/TypeScript

React

PostgreSQL/SQL Server

Entity Framework Core/Prisma/Drizzle

TypeScript

Git

OWASP security basics

English fluency

Autonomous work

REST API design

Design patterns

Single-page web apps

Education

Degree in Computer Science or related

Tools

Docker

Kubernetes

CI/CD pipelines

Azure/AWS/GCP

WebSockets/SignalR

tRPC/Next.js

Job description

Ocean Infinity seeks a Senior Software Engineer to design, build, and maintain the products behind our autonomous and remote marine operations. You will work from data models and APIs through to operator and customer interfaces, reporting to a Tech Lead.

The role involves fullstack development across C#/.NET or TS stack, React frontends, and collaboration with engineers to ensure robust, scalable systems.