C++ Junior Software Developer, London, Heathrow UK

Posted:
7/19/2026, 8:16:39 PM

Location(s):
England, United Kingdom ⋅ Greater London, England, United Kingdom

Experience Level(s):
Junior

Field(s):
Software Engineering

Workplace Type:
On-site

Pay:
$60k/yr

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 Waterfall or Agile (Scrum) methodologies.

As a Software Development Engineer, you’ll be responsible for the technical design and delivery of product features based on solutions agreed with stakeholders. Because these applications require 24/7 availability, you’ll focus heavily on performance, reliability, and other non‑functional requirements.

Technical skills we look for:

  • C++
  • Unix
  • Oracle
  • MongoDB

How the process works

  1. Application – Apply via this advert.
  2. Assessment – Complete our online assessment.
  3. Interview – Meet our talent team (phone/video), then
  4. 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.

 

mthree

Website: https://mthree.com/

Headquarter Location: London, England, United Kingdom

Employee Count: 1001-5000

Year Founded: 2010

IPO Status: Private

Last Funding Type: Private Equity

Industries: Corporate Training ⋅ Information Technology ⋅ Training

Visa Sponsorship: Sponsors work visas