Harrington Starr - United Kingdom, IT - Software Development

Customer Success - Forward Deployed Engineer (FDE) role in London (Hybrid, Canary Wharf) offering £80k–£100k + equity. Join a high-growth AI firm as a key commercial technical hire, bridging solutions engineering and customer success. You will implement advanced AI for enterprise banking clients,...

Senior Quant Analyst sought by a leading competitive gaming firm in Milton Keynes, UK. You will develop and maintain advanced sports betting pricing models and algorithms for esports, leveraging Python, R, or Java. Requires 5+ years of quant experience in sports betting and expertise in machine l...

Senior C# Engineer sought by a London-based proprietary trading firm to drive greenfield projects using cutting-edge .NET technology. You will architect high-performance trading applications, collaborating with top engineers in a non-corporate culture. Requires deep C# expertise, SQL Server knowl...

Lead C++ Engineer sought for a high-impact London trading role. This position blends low-latency engineering with strategic leadership, requiring strong C++ and Python skills. You will modernise legacy systems, drive technical vision, and lead a high-performing team. Benefit from a competitive bo...

Lead Cloud Engineering for a top City of London financial firm. You will own the end-to-end cloud platform lifecycle on AWS and Azure. This senior role requires expertise in architecture, governance, and risk management within Financial Services. Drive strategy from a key London location.

Lead product development for a global mobile investing app in London. Own key features, define requirements, and deliver rapid MVPs with international engineering teams. Ideal candidates have mobile app PM experience, a commercial mindset, and a background in Crypto, Trading, or FinTech.

Join a leading trading technology vendor as a Front-End Test Analyst in London. You will ensure high-quality user experiences for complex trading applications using Playwright and TypeScript. This role requires 3-4 years of front-end testing experience, ideally in finance. Work in a fast-paced, A...

Join a global fintech leader in Poplar, London, as a Cyber Security Engineer. You will focus on AWS security, designing controls and managing tools like GuardDuty and Security Hub. This role offers cutting-edge projects within a major cybersecurity investment program. Strong AWS, IAM, and CSPM ex...

Join a top-tier DeFi team in London building advanced onchain trading infrastructure. We seek a quant-minded Rust Engineer with a strong academic background and 2+ years of Rust/Solidity experience. You will design low-latency systems, optimize execution engines, and shape real-time DeFi strategi...