C++ Junior Software Developer, London, Heathrow UK

Want to launch your career as a C++ Junior Developer?

At mthree, we match ambitious graduates with leading global companies across finance.

What you’ll do

You’ll work on large‑scale, mission‑critical software engineering challenges, collaborating closely with Business Analysts and QA teams. Depending on the project, you’ll use either WaterfallorAgile (Scrum) methodologies.

As a Software Development Engineer, you’ll be responsible for the technical design and deliveryof product features based on solutions agreed with stakeholders. Because these applications require24/7 availability, you’ll focus heavily onperformance, reliability, and other non‑functional requirements.

Technical skills we look for:

• C++
• Unix
• Oracle
• MongoDB

How the process works

• Application – Apply via this advert.
• Assessment – Complete our online assessment.
• Interview – Meet our talent team (phone/video), then
• Interview with our client.

What happens next

If successful, you’ll join the mthree Academy for 4-6 weeks of online training focused on C++ or other in‑demand languages. After training, you’ll work with our client for 18 months, with ongoing support and salary increase after 12 months. Most graduates convert to permanent roles afterwards.

What you’ll need

• Bachelor’s degree in Computer Science or related field (2:1 or higher)
• Solid understanding of software engineering principles
• Troubleshooting and debugging skills
• Familiarity with SDLC and test‑driven development
• Right to work in the UK (no sponsorship)

mthree is committed to diversity, inclusion, and supporting the wellbeing of all our employees. Applicants must be authorized to work in the UK full‑time; we cannot provide visa sponsorship.