Core Technical Jobs

Senior Software Engineer - LondonHarrington Starr are working alongside a unique financial trading technology firm who are seeking 10+ Senior Java Developers to join their Core Development team and build out low latency systems.You absolutely have to have is a demonstrable interest in technology, precision, and technical excellence. Our client's mi...

Python Developer - Fixed Income Trading TechnologyWe are currently recruiting for a Python Developer to join the Fixed Income trading technology team within a leading international Investment Bank.This is a core software engineering role focused on building production trading systems.We are looking for a core Python engineer who enjoys owning compo...

Python Developer - Fixed Income Trading TechnologyWe are currently recruiting for a Python Developer to join the Fixed Income trading technology team within a leading international Investment Bank.This is a core software engineering role focused on building production trading systems.We are looking for a core Python engineer who enjoys owning compo...

Senior C# .NET Developer (Contract) Remote London (1 day per week in office)£475 per dayOutside IR35A well-established and highly specialised organisation operating within the infrastructure and environmental services sector is seeking an experienced Senior C# .NET Developer to join their team on a contract basis. This role will focus on enhancing ...

Senior C# .NET Developer (Contract) Remote London (1 day per week in office)£475 per dayOutside IR35A well-established and highly specialised organisation operating within the infrastructure and environmental services sector is seeking an experienced Senior C# .NET Developer to join their team on a contract basis. This role will focus on enhancing ...

Founding Software Engineer | Python | Early-Stage AI Start-Up | LondonFounding Software Engineer (Python) required to build, scale, and own the technical foundation of a well backed, early-stage AI start-up from day one.This is a rare opportunity for a strong Python Software Engineer to join at the ground floor, working directly with the founders t...

Founding Software Engineer | Python | Early-Stage AI Start-Up | LondonFounding Software Engineer (Python) required to build, scale, and own the technical foundation of a well backed, early-stage AI start-up from day one.This is a rare opportunity for a strong Python Software Engineer to join at the ground floor, working directly with the founders t...

Oracle Lead DeveloperKey PointsGlasgowImmediate start preferredContract – Outside IR35Competitive RateOverviewThis is an opportunity to join a global technology-driven organisation delivering large-scale, business-critical systems across complex enterprise environments.The organisation specialises in transforming and modernising core business platf...

Staff Engineer, Python | AI-Driven FinTech, Series C | 1-2 Days Hyrbid, London | Up to £150,000+ Equity & BenefitsAbout the company: We are working with a highly successful, fast-scaling FinTech platform that is fundamentally transforming data infrastructure and workflow automation across global financial markets.They have proven product-market fit...

Job Title: Senior Technical Consultant / Senior ServiceNow Developer - SC Cleared (must be active) Location: THIS IS A REMOTE ROLE! - office location London basedRate:£480 - £500 a day Start Date: 8th June Job Type: Contract 3 months initiallyWe are seeking an experienced Senior Technical Consultant / Senior ServiceNow Developer to lead the design,...