C++ Software Engineer Remote (UK-based) | Full-Time About Us 2026 OTC Trading Platform of the Year ( ). Our network handles over $50 billion in daily trading volumes across FX, Equities, and Cryptocurrency, connecting 40+ of the world's leading liquidity providers.
The Role
What You'll Work On What We Need Technical: How you work: You ship. You're delivery-focused — you iterate, you improve, you get things into production You own it. When you build something, you take responsibility for its behaviour in production. You respond to incidents (15-minute acknowledgement SLA during working hours), investigate issues, and close the loop You write things down. Documentation is not an afterthought — it's how we scale knowledge across a distributed team. If it's not written down, it doesn't exist You communicate.
We're a distributed team across multiple time zones. Clear, proactive communication — especially when things go wrong — is essential You care about quality. You write clean, testable code. You review your peers' work thoughtfully. You push for continuous improvement without gold-plating You embrace AI tooling. We use AI tools (Claude, Gemini) to amplify our engineering capability — from code review and debugging to incident investigation and documentation.
You don't need to be an expert, but you should be curious and willing to learn What You Get Real problems — trading systems where performance is measured in microseconds, not user clicks An excellent team — senior engineers who care about craft, collaborate openly, and hold each other to high standards Ownership — small teams, clear accountability, direct impact on the platform and our clients Competitive package — up to 30 days leave + bank holidays, private health insurance, pension, life insurance, dental/optical cashback, cycle to work, socials and offsites Remote-friendly — work from home with flexibility.
We trust our people to deliver Sustainable pace — we work hard, but we don't burn people out. Balance is how we stay sharp Growth — career progression to senior roles, performance specialisation, or technical leadership. We invest in people who invest in us Our Hiring Process Stage 1: Initial Conversation with
Talent AcquisitionFormat: Video call, ~30-45 minutes Stage 2: Hiring Manager Conversation with the relevant team lead or hiring managerFormat: Video call, ~60 minutes Stage 3: Technical Interview with two members of the relevant engineering teamFormat: Video call, interactive session, ~60 minutes How to Apply Right to Work: Candidates must have the existing right to work in the UK. We are not currently able to offer visa sponsorship for this role.
Equal Opportunities: Reactive Markets is an equal opportunities employer. We welcome applications from all qualified candidates regardless of age, disability, gender reassignment, marriage or civil partnership, pregnancy or maternity, race, religion or belief, sex, or sexual orientation.
Reasonable Adjustments: If you need any adjustments or support during the application or interview process, please let us know — we're happy to accommodate.
Data Protection: By applying, you consent to Reactive Markets processing your personal data for recruitment purposes, in line with our.
Remote c++ software engineer in Arnside employer: Reactive Markets
Reactive Markets is an exceptional employer that fosters a dynamic work culture, prioritising innovation and collaboration. With a strong emphasis on employee growth, you will have access to continuous learning opportunities while working closely with a senior engineering team in a hybrid London setting. The company's commitment to outstanding client service and automation ensures that you will be part of a forward-thinking environment that values your contributions.
