Principal Software Engineer - C++, Python

Computer Futures / SThree Group; Oxford; Hybrid; GBP 57,000 - 68,000; Full time

Job summary

A technology firm in Oxford is seeking a Software Engineer to join a dedicated engineering team developing software for scientific instruments. The ideal candidate will have extensive experience in C++ and Python, alongside a solid Linux development background. This hybrid role requires collaboration across multiple teams and focuses on delivering high-performance software solutions. Competitive salary and benefits offered.

Benefits

Up to £68,000 salary plus bonus

25 days annual leave + bank holidays

Pension contribution

Career development opportunities

Qualifications

• Strong experience in C++ and Python for complex systems.
• Solid Linux development background.
• Proven ability to deliver maintainable, high-performance software.

Responsibilities

• Design, develop, and maintain software for precision instruments.
• Write modern C++ and Python in a Linux environment.
• Collaborate with engineers, technicians, and scientists.

Skills

C++

Python

Linux development

Communication skills

Problem solving

Education

Degree in Computer Science, Engineering, or Physics

Job description

Looking for a role where your work genuinely matters? This is your chance to join a close‑knit engineering team building software that powers world‑class scientific instruments. These systems help researchers push the boundaries of physics and materials science and you'll play a key part in making that happen. If you enjoy solving complex problems, collaborating across disciplines, and want to see your code make a real impact, this could be the perfect fit.

What you’ll do 🛠️

• Own the lifecycle: Design, develop, and maintain software for precision instruments. 50% coding, 25% documentation, 25% coordination.
• Build clean solutions: Write modern C++ and Python in a Linux environment, delivering robust, maintainable code.
• Collaborate widely: Work with engineers, technicians, manufacturing teams, and scientists to turn business requirements into technical solutions.
• Hardware integration: Interface with programmable instruments and ensure smooth hardware/software interaction.
• Test and validate: Create and run unit and integration tests to guarantee reliability.
• Lead by influence: Mentor junior engineers and contribute technical input during design reviews.

What you’ll bring 🧠

• Strong experience in C++ and Python for complex systems.
• Solid Linux development background.
• Proven ability to deliver maintainable, high‑performance software.
• Degree in Computer Science, Engineering, Physics, or equivalent practical experience.
• Excellent communication skills and the ability to work across multiple teams.
• Strong experience in translating business requirements into technical solutions.

Working arrangement 🧭

• Hybrid: 3 days on‑site in Oxford, with early finish Fridays (1pm).
• Expect hands‑on collaboration in the lab for hardware integration and testing.

Salary & Benefits 🎁

• Up to £68,000 plus bonus scheme.
• 25 days annual leave + bank holidays.
• Pension contribution and comprehensive benefits package.
• Opportunities for career development in a growing, technology‑led business.

📩 Apply now or get in touch for a confidential chat about the role.