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# Software Engineer

- **Company:** Treq
- **Location:** Abingdon, UK
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** .NET Framework, Application Programming Interfaces (APIs), Artificial Intelligence, Algorithm Design, Systems Engineering, Unit Testing, C Sharp (Programming Language), Ubuntu (Operating System), Software Quality, Data Structures, Language Integrated Query, Python (Programming Language), Quantum Computing, Queueing Systems, SignalR, Software Deployment, Software Engineering, Systems Architecture, Blazor, Agentic-AI, Information Technology, Functional Programming, Docker
- **Published:** November 9, 2026
- **Apply:** https://www.careerjet.co.uk/jobad/gb6692c1776e58879407d918cfe54a5654

## About the Role

Here at TreQ, we are accelerating the path to useful quantum computing by designing, deploying, and operating open-architecture quantum computing infrastructure that evolves as quantum technologies advance., * Demonstrate good knowledge of software system architecture

 * Demonstrate high proficiency in .NET and C#, with familiarity in Python
 * Demonstrate the ability to specify, design, and document bi-directional APIs cleanly
 * Independently problem-solve

You've had experiences like these:

 * Developing software that interacts directly with external hardware or instruments
 * Using AI tools to assist in generating unit tests, documentation, and routine code

You like:

 * Security-first thinking and standard software patterns and practices
 * Functional programming patterns (e.g., LINQ, immutable records)
 * Thriving in a small, supportive, nimble team, where knowledge sharing and team growth are prioritized, working on deep tech challenges
 * Letting AI handle repetitive/routine tasks so you can focus on core logic
 * Writing TCP/IP stacks, compiler passes, or authentication solutions., There is extra kudos if you have a degree in computer science, software engineering, physics, or can share equivalent practical experience. You don't need to be have a background in quantum to apply. We value practical engineering experience as much as formal academic credentials. People join TreQ from industry, national laboratories, startups, academia, and military service.

## Description

We are shaping the future of quantum computing and as we expand, we are searching for a Senior Software Engineer to join our team. Your primary responsibility as a Senior Software Engineer will be building a quantum orchestrator that interfaces directly with external quantum hardware and software, including transpilers. You will work closely with TreQ's systems engineers, software lead, and supply chain partners to pioneer open-architecture quantum infrastructure.
As a Senior Software Engineer, your day will see you:

 * Architect sub-components within the TreQ quantum orchestrator from high level flow down to required data structures.
 * Manage AI agents to build, document, and maintain quantum orchestration and integration solutions (primarily .NET background worker services) that interface directly with external quantum hardware
 * Automate and document software deployments on clean Ubuntu environments using Docker and systemd
 * Establish, document, maintain, and streamline CI workflows to ensure high software quality
 * Actively participate in peer code reviews
 * Self-manage sprint tasks within a fast-moving, collaborative team

Requirements
You will be a success in this role if:
You know about:

 * Algorithm design
 * Selection of appropriate data structures
 * The architecture of .NET background worker services and message queues
 * Docker container deployments
 * SignalR or Blazor, TreQ is a veteran-owned, woman-owned small business and an equal opportunity employer. We hire based on capability, character, and the ability to contribute to our mission.