Senior C/C++ Engineer for Real-Time Systems (Hybrid UK)

Octagon Group; Stevenage; Hybrid; GBP 70,000 - 100,000; Full time

Job summary

Octagon Group in Stevenage is seeking a Senior Software Engineer (C/C++) to join our hybrid R&D team. You will design, develop, and maintain backend software with end-to-end ownership, collaborating with product, sales, and marketing to translate real-world requirements into high-performance solutions.

Ideal candidates have 5+ years in software development, strong C/C++ in Linux, and experience in network programming and multithreading, plus Python knowledge and mentoring skills.

Qualifications

• Degree in Computer Science, Software Engineering, or similar.
• 5+ years of software development experience.
• Strong C/C++ programming in Linux with GNU tools.
• Experience with network programming and multithreading.
• Proficiency in Python.

Responsibilities

• Design, develop, and maintain complex backend software with end-to-end ownership.
• Translate requirements into scalable, maintainable system designs.
• Contribute to system architecture and ongoing product evolution.
• Develop high-quality, performant software to agreed timescales.
• Collaborate with product owners and cross-functional teams.
• Mentor and support junior engineers; support testing and quality activities.

Skills

C/C++ programming

Linux environment

Network programming

Multithreading

Python

Mentoring

Communication skills

Problem solving

Education

Degree in Computer Science or Software Engineering

Tools

Jenkins

GitHub Actions

Docker

AWS

Terraform

Job description

Octagon Group in Stevenage is seeking a Senior Software Engineer (C/C++) to join our hybrid R&D team. You will design, develop, and maintain backend software with end-to-end ownership, collaborating with product, sales, and marketing to translate real-world requirements into high-performance solutions.

Ideal candidates have 5+ years in software development, strong C/C++ in Linux, and experience in network programming and multithreading, plus Python knowledge and mentoring skills.