Senior Software Engineer (C# / SQL Server)

Senior Software Engineer (C# / SQL Server)

Full-Time 72000 - 88000 £ / year (est.) Home office (partial)
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At a Glance

  • Tasks: Join a collaborative team to build advanced radar systems and backend services.
  • Company: CHAOS Industries, a leader in tech for defence and commercial air operations.
  • Benefits: 100% paid health benefits, competitive salary, stock options, and pension match.
  • Other info: Opportunity for travel and excellent career growth in a dynamic environment.
  • Why this job: Make a real-world impact by solving complex data challenges with cutting-edge technology.
  • Qualifications: Experience in software engineering, particularly with C# and SQL Server.

The predicted salary is between 72000 - 88000 £ per year.

The company's products are powered by Coherent Distributed Networks (CDN™), empowering warfighters, commercial air operators, and border protection teams to act faster, adapt rapidly, and stay ahead of evolving threats. The company is headquartered in Los Angeles, with offices in Washington, D.C.

You’ll join a small, highly collaborative team working across London and San Francisco, building the software behind some of the world’s most advanced radar systems. Working alongside software, hardware, and systems engineers, and the teams who take these systems into the field, you’ll design the backend services, data pipelines, and operator-facing applications that turn raw sensor data into decisions people can act on.

This is a high-ownership role where you’ll influence architecture and help define the engineering foundations of a rapidly evolving platform. We’re looking for engineers who enjoy scaling distributed systems and solving hard data problems.

  • Backend Services: develop high-performance Python services that ingest, process, and distribute real-time sensor data with low latency, high reliability, and security at scale.
  • Operator Interfaces: build and evolve the web applications operators use to monitor live missions and investigate what the sensors saw (TypeScript and React).
  • Platform Architecture: help shape the technical direction of the platform, making architectural decisions that support new capabilities, increasing scale, and long-term maintainability.

We’re looking for exceptional software engineers who are excited by solving hard technical problems and building systems that matter. Enjoy building scalable backend systems and taking ownership of production services. Enjoy solving complex distributed systems and real-time data challenges. Get real leverage from AI coding tools, with a considered view on what to delegate to them and what not to. Are motivated by building technology with meaningful real-world impact. Willingness to travel. You’ll be based in our Soho office in London, but most of the team is in San Francisco - expect to co-locate there for around a week each quarter.

Health Benefits: private medical, dental and vision benefits (for employees & dependents) will be 100% paid for by the company. 5% pension match.

Compensation Components: competitive base salaries, generous pre-IPO stock option grants, relocation assistance + (coming soon!) annual bonuses. The stated compensation range reflects only the targeted base compensation range and excludes additional earnings such as bonus, equity, and benefits. If your compensation requirements fall outside of the range, we still encourage you to apply. The salary range for this role is an estimate based on a range of compensation factors, inclusive of base salary only. Actual salary offer may vary based on (but not limited to) work experience, education and/or training, critical skills, and/or business considerations.

Senior Software Engineer (C# / SQL Server) employer: CHAOS Industries

CHAOS Industries is an exceptional employer, offering a dynamic work environment where innovation meets mission-critical operations. With comprehensive health benefits fully covered for employees and their dependents, competitive salaries, and generous pre-IPO stock options, the company prioritises employee well-being and financial growth. Located in the vibrant Soho area of London, CHAOS fosters a culture of collaboration and continuous learning, providing ample opportunities for professional development while empowering its team to make a meaningful impact in the defence sector.

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Contact Details:

CHAOS Industries Recruitment Team

We think you need these skills to ace Senior Software Engineer (C# / SQL Server)

C#
SQL Server
Python
TypeScript
React
Distributed Systems
Real-Time Data Processing