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...

We are partnering with one of London’s most selective and highest-performing quantitative investment funds to appoint a Senior Quant Software Developer to their core systematic trading group. This is a confidential mandate for a team renowned for world-class engineering standards, scientific rigour, and a culture built around high impact and low eg...

Product Developer - BeveragesLocation: Remote/1 day per week in the office in LondonIndustry: Functional DrinksCore ResponsibilitiesProduct Innovation & DevelopmentOversee product development projects from initial concept through to commercial launch, liaising with manufacturing partners throughout sampling and production stagesResearch new ingredi...

Product Developer - BeveragesLocation: Remote/1 day per week in the office in LondonIndustry: Functional DrinksCore ResponsibilitiesProduct Innovation & DevelopmentOversee product development projects from initial concept through to commercial launch, liaising with manufacturing partners throughout sampling and production stagesResearch new ingredi...

We are partnering with one of London’s most selective and highest-performing quantitative investment funds to appoint a Senior Quant Software Developer to their core systematic trading group. This is a confidential mandate for a team renowned for world-class engineering standards, scientific rigour, and a culture built around high impact and low eg...

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...

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...

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 ...