Senior Software Engineer, Prime

About the Role

We are representing a confidential fintech client seeking a Senior Software Engineer to join their institutional brokerage platform team in London. This is a hybrid role requiring in-office attendance at least 3 days per week, with participation in an on-call rotation to support critical business systems.

Our client is building the infrastructure that enables institutional clients—hedge funds, market makers, and professional trading firms—to fund, trade, borrow against, and settle positions at scale. You'll be working on correctness-critical systems where precision is paramount: cross-venue settlement, credit against collateral, matched-book lending, and integration of tokenized securities into trading infrastructure.

Responsibilities

• Lead the design and end-to-end delivery of large, high-complexity systems that handle institutional money movement—settlement, on-exchange credit, matched-book lending, and cross-venue order flows—from specification through production deployment and ongoing operational support
• Author detailed technical designs and break work into reviewable increments, guiding other engineers and making failure states, invariants, and recovery mechanisms explicit before shipping production code
• Shape the technical roadmap and architecture, advocating for the reliability, correctness, and risk-control work that protects client assets
• Elevate team capabilities through deep, design-focused code review and mentorship, serving as a reliable technical point of contact for partner teams and cross-functional stakeholders

What We're Looking For

• Proven track record of independently delivering complex, high-ambiguity backend projects with long-term impact, operating them in production and taking full ownership of your code
• Hands-on experience building financial systems—user balances, ledgers, risk engines, settlement, or payments—where correctness is non-negotiable and errors carry significant cost
• Deep expertise in distributed state management across system boundaries, transactional integrity, idempotency, and exactly-once semantics
• Strong design judgment: you enumerate failure paths, define invariants clearly, and can identify the specific constraint, test, or alert that enforces each critical property
• Excellent communication skills: you drive alignment across teams and product partners, provide substantive design-level review feedback, and mentor engineers to raise technical standards
• Fluency in modern backend languages—our client works primarily in Python (Django) and Go

How We Work with You

Candidates apply directly through Get A Job.ai. Our talent team will conduct an initial screening to understand your background and ensure alignment with the role requirements. We then submit qualified candidates to our client for consideration. Please do not attempt to contact the client directly, as all communication should flow through our recruiting team to ensure a smooth process for everyone involved.

Pay

Compensation details will be discussed with qualified candidates during the screening process.

Equal Opportunity: Get A Job.ai is committed to equal employment opportunity. We welcome applicants from all backgrounds and provide reasonable accommodations as needed throughout our recruitment process.