Harrington Starr - United Kingdom, IT - Software Development

Join a leading quantitative trading firm in London as a Quantitative Researcher. You will develop systematic trading and market-making strategies, leveraging Python and statistical modelling on large datasets. Ideal for candidates with an advanced degree in a quantitative field and experience in ...

Senior Software Engineer sought by a fast-scaling London fintech transforming FX and treasury operations. You will build high-impact, cloud-native trading systems using C#/.NET, SQL, and microservices. Ideal for engineers with 5+ years’ experience in financial technology. Join a collaborative tea...

Customer Success Manager sought for a Financial Services SaaS platform in London/Hybrid. This new role builds a CS function, driving platform adoption and value for fund managers. You will own senior client relationships, identify upsell opportunities, and shape best practices. Offering £75k-£100...

Seeking a skilled **Software Engineer** with expertise in **NodeJS** and **TypeScript** for a London-based role. You will build robust trading systems within a Front Office environment, leveraging **AWS Cloud** and **Terraform**. Requires a 2:1 in Computer Science and experience with **React** an...

Head of Software Engineering (NestJS) sought by a global financial payments firm in London. Lead a team of 20 engineers, owning the architecture and delivery of a core payments platform. Requires senior leadership experience, hands-on NestJS, TypeScript, and NodeJS skills, plus deep fintech domai...

Principal C++ Engineer sought for a front-office options desk in London, building a brand-new trading stack. You will leverage deep C++ and Linux expertise, including multi-threaded programming, to design and implement bespoke automated trading software. This role demands strong engineering princ...

Senior Electronic Trading Architect needed for a critical sell-side modernisation programme. You will lead the FIX adapter migration to Onix FIX, defining low-latency execution and market-making architecture. This high-trust advisory role requires deep expertise in FIX connectivity, Java performa...

Technical Pre-Sales Engineer role in London, hybrid working, circa £90k + bonus. Join a global enterprise tech firm, designing observability and monitoring solutions for top financial institutions. Requires 3+ years pre-sales experience with APM tools like Dynatrace or AppDynamics, plus Linux and...

Join a London-based Digital Currency Investment Platform as a **Software Engineer** specializing in **NodeJS** and **TypeScript**. You'll build cutting-edge web systems for global digital markets, leveraging **AWS** and **Terraform**. Ideal for engineers with a Computer Science degree and experie...

We are hiring a DevOps Engineer to scale and operate a cloud-native SaaS platform for global financial services. You will leverage AWS, Kubernetes (EKS), Terraform, and CI/CD to enhance platform reliability and automate infrastructure. Ideal candidates have 2+ years in DevOps or SRE, with strong ...

Senior Software Asset Management Engineer needed to rebuild SAM capability for a tier-one financial services firm in London. This senior role demands expertise in licensing models (SaaS, cloud, perpetual), ServiceNow SAM Pro, and audit leadership. You will shape governance, drive cost optimisatio...

Customer Success Manager role in London with a leading financial technology firm. You will drive platform adoption and value realisation for major enterprise clients in highly regulated environments. Requires expertise in monitoring/observability (e.g., Dynatrace, Datadog) and hybrid infrastructu...