1,176 to 1,200 of 2,078 Developer Jobs in London

BI Developer - Insurance Data London/Hybrid - £70,000 A fast-growing specialty insurance group is expanding its technology and data function following several high-profile acquisitions. Its London-based data team is now building a unified reporting platform that will underpin decision-making across multiple underwriting businesses. As a BI Developer, you'll sit at the centre of this … office in the City of London with modern BI tooling Join a collaborative, tech-led environment where data is seen as a core asset If you're a BI Developer who enjoys both hands-on build and commercial problem solving, this is an opportunity to make a visible impact in a business that values its data as a driver of More ❯

BI Developer - Insurance Data London/Hybrid - £70,000 A fast-growing specialty insurance group is expanding its technology and data function following several high-profile acquisitions. Its London-based data team is now building a unified reporting platform that will underpin decision-making across multiple underwriting businesses. As a BI Developer, you'll sit at the centre of this … office in the City of London with modern BI tooling Join a collaborative, tech-led environment where data is seen as a core asset If you're a BI Developer who enjoys both hands-on build and commercial problem solving, this is an opportunity to make a visible impact in a business that values its data as a driver of More ❯

BI Developer - Insurance Data London/Hybrid - £70,000 A fast-growing specialty insurance group is expanding its technology and data function following several high-profile acquisitions. Its London-based data team is now building a unified reporting platform that will underpin decision-making across multiple underwriting businesses. As a BI Developer, you'll sit at the centre of this … office in the City of London with modern BI tooling Join a collaborative, tech-led environment where data is seen as a core asset If you're a BI Developer who enjoys both hands-on build and commercial problem solving, this is an opportunity to make a visible impact in a business that values its data as a driver of More ❯

Senior C++ Software Developer – STL – UNIX - London. - Tier-1 electronic trading organisation seeks to hire a Senior C++ Software Developer to join their London or Chicago team as part of an expansion plan for 2026. The Senior C++ Software Developer with be a key contributor to the enhancement of their electronic trading ecosystem and surrounding electronic trading environment. The client … is part of a large investment banking group, one of the largest financial institutions globally. The Senior C++ Software Developer will: Assist engineering manager with growth of the team in London and US office. Define and be involved in development projects for their core real-time trading engine. Work collaboratively with testing and engineering teams internally and externally. Assist with … advancements in platform automation. Take ownership of business and technical change requests. Design and plan software change documentation. Integration testing to ensure high quality QA. The Senior C++ Software Developer will need to have: A STEM background. Experience developing electronic trading software is essential for this position. Significant experience of C++ development. c++ 11-17 STL experience. UNIX environment experience More ❯

Senior C++ Software Developer – STL – UNIX - London. - Tier-1 electronic trading organisation seeks to hire a Senior C++ Software Developer to join their London or Chicago team as part of an expansion plan for 2026. The Senior C++ Software Developer with be a key contributor to the enhancement of their electronic trading ecosystem and surrounding electronic trading environment. The client … is part of a large investment banking group, one of the largest financial institutions globally. The Senior C++ Software Developer will: Assist engineering manager with growth of the team in London and US office. Define and be involved in development projects for their core real-time trading engine. Work collaboratively with testing and engineering teams internally and externally. Assist with … advancements in platform automation. Take ownership of business and technical change requests. Design and plan software change documentation. Integration testing to ensure high quality QA. The Senior C++ Software Developer will need to have: A STEM background. Experience developing electronic trading software is essential for this position. Significant experience of C++ development. c++ 11-17 STL experience. UNIX environment experience More ❯

Senior Software Developer – Python/Ruby Location: London (2/3 days per week on-site) Rate: Up to £650/day (Inside IR35 – 12-month Contract) A major UK government department is seeking an experienced Senior Software Developer to play a key role in the redevelopment of a critical national open data platform. This is a high-impact opportunity More ❯

Senior Software Developer – Python/Ruby Location: London (2/3 days per week on-site) Rate: Up to £650/day (Inside IR35 – 12-month Contract) A major UK government department is seeking an experienced Senior Software Developer to play a key role in the redevelopment of a critical national open data platform. This is a high-impact opportunity More ❯

Senior Software Developer – Python/Ruby Location: London (2/3 days per week on-site) Rate: Up to £650/day (Inside IR35 – 12-month Contract) A major UK government department is seeking an experienced Senior Software Developer to play a key role in the redevelopment of a critical national open data platform. This is a high-impact opportunity More ❯

Senior Software Developer – Python/Ruby Location: London (2/3 days per week on-site) Rate: Up to £650/day (Inside IR35 – 12-month Contract) A major UK government department is seeking an experienced Senior Software Developer to play a key role in the redevelopment of a critical national open data platform. This is a high-impact opportunity More ❯

Lead Python Developer (PYTHON/AWS/REACT) - health tech - tech for good, make a positive impact on the world. Highly successful and fast growing organisation has an exciting opportunity for a Lead Python Developer (PYTHON/AWS/REACT). JOB PURPOSE Part of the extended Technology Leadership Team, the Lead Python Developer will design, implement, and maintain publishing More ❯

Lead Python Developer (PYTHON/AWS/REACT) - health tech - tech for good, make a positive impact on the world. Highly successful and fast growing organisation has an exciting opportunity for a Lead Python Developer (PYTHON/AWS/REACT). JOB PURPOSE Part of the extended Technology Leadership Team, the Lead Python Developer will design, implement, and maintain publishing More ❯

Lead Python Developer (PYTHON/AWS/REACT) - health tech - tech for good, make a positive impact on the world. Highly successful and fast growing organisation has an exciting opportunity for a Lead Python Developer (PYTHON/AWS/REACT). JOB PURPOSE Part of the extended Technology Leadership Team, the Lead Python Developer will design, implement, and maintain publishing More ❯

Lead Python Developer (PYTHON/AWS/REACT) - health tech - tech for good, make a positive impact on the world. Highly successful and fast growing organisation has an exciting opportunity for a Lead Python Developer (PYTHON/AWS/REACT). JOB PURPOSE Part of the extended Technology Leadership Team, the Lead Python Developer will design, implement, and maintain publishing More ❯

Lead Python Developer (PYTHON/AWS/REACT) - health tech - tech for good, make a positive impact on the world. Highly successful and fast growing organisation has an exciting opportunity for a Lead Python Developer (PYTHON/AWS/REACT). JOB PURPOSE Part of the extended Technology Leadership Team, the Lead Python Developer will design, implement, and maintain publishing More ❯

Senior Full Stack Developer - Hybrid - £650/day Outside IR35 React .NET Python AWS API Asset Management Wealth Management Looking to speak with experienced Full Stack Developers to join a client of ours within the Asset space. They're looking to build a new division within the tech team and are looking for a Senior/Lead Full Stack … in full-stack development, with React, and .NET or Python Hands-on experience with AWS Strong API development and integration experience Experience with event-driven architecture Senior Full Stack Developer - Hybrid - £650/day Outside IR35 React .NET Python AWS API Asset Management Wealth Management More ❯

Java Developer – ION Platform – Contract We are seeking a seasoned Java Developer with deep expertise in trading platforms and specifically outstanding knowledge of the ION ecosystem. The role involves building and supporting low-latency, multi-threaded systems for Rates and Credit markets. Key Responsibilities: Develop and maintain trading applications using Java and Spring Framework. Integrate and support ION MarketView, XTP More ❯

Java Developer – ION Platform – Contract We are seeking a seasoned Java Developer with deep expertise in trading platforms and specifically outstanding knowledge of the ION ecosystem. The role involves building and supporting low-latency, multi-threaded systems for Rates and Credit markets. Key Responsibilities: Develop and maintain trading applications using Java and Spring Framework. Integrate and support ION MarketView, XTP More ❯

Java Developer – ION Platform – Contract We are seeking a seasoned Java Developer with deep expertise in trading platforms and specifically outstanding knowledge of the ION ecosystem. The role involves building and supporting low-latency, multi-threaded systems for Rates and Credit markets. Key Responsibilities: Develop and maintain trading applications using Java and Spring Framework. Integrate and support ION MarketView, XTP More ❯

Java Developer – ION Platform – Contract We are seeking a seasoned Java Developer with deep expertise in trading platforms and specifically outstanding knowledge of the ION ecosystem. The role involves building and supporting low-latency, multi-threaded systems for Rates and Credit markets. Key Responsibilities: Develop and maintain trading applications using Java and Spring Framework. Integrate and support ION MarketView, XTP More ❯

Senior Python Developer - Python, SQL, Databricks, AWS/Azure OB have partnered with a Global Insurance Leader, who are expanding their Python Engineering team, with Senior Python Developer, skilled with Python, SQL, Databricks and Cloud Infrastructure. In this role, you will play a key part in designing and building new capabilities, such as high-performance API's and high-frequency … event streams, as well as making improvements to their current platform. Senior Python Developer - Python, SQL, Databricks, AWS/Azure Key skills and experience: Python FastAPI SQL Databricks AWS/Azure API's Hybrid working with 3-days a week required in a Central London office Pays up to £90k + benefits To be considered, you must be UK based … Senior Python Developer - Python, SQL, Databricks, AWS/Azure More ❯

Senior Python Developer - Python, SQL, Databricks, AWS/Azure OB have partnered with a Global Insurance Leader, who are expanding their Python Engineering team, with Senior Python Developer, skilled with Python, SQL, Databricks and Cloud Infrastructure. In this role, you will play a key part in designing and building new capabilities, such as high-performance API's and high-frequency … event streams, as well as making improvements to their current platform. Senior Python Developer - Python, SQL, Databricks, AWS/Azure Key skills and experience: Python FastAPI SQL Databricks AWS/Azure API's Hybrid working with 3-days a week required in a Central London office Pays up to £90k + benefits To be considered, you must be UK based … Senior Python Developer - Python, SQL, Databricks, AWS/Azure More ❯

Role: Quantitative Developer – React/C# Location: London Industry: Hedge Funds Travel: Hybrid Overview: A leading global quantitative investment manager is seeking a skilled Quantitative Developer (React/C#/Python) to join their London-based team. You will work as a desk-facing developer alongside global cross-asset systematic trading operations in a fast-paced, evolving setting. The position More ❯

Role: Quantitative Developer – React/C# Location: London Industry: Hedge Funds Travel: Hybrid Overview: A leading global quantitative investment manager is seeking a skilled Quantitative Developer (React/C#/Python) to join their London-based team. You will work as a desk-facing developer alongside global cross-asset systematic trading operations in a fast-paced, evolving setting. The position More ❯

AI Software Developer (Python, JavaScript, ML) - London/Hybrid Day rate: £500 - £800 (inside IR35) Duration: 6 - 12 months Start: ASAP Hybrid: 3 days on site per week My client is looking for a Software Developer with AI, Python and JavaScript experience to join on a contract basis. As a Software Developer - AI, you will focus on the development and More ❯

Lead Software Developer (PYTHON/AWS) - health tech - tech for good, make a positive impact on the world. Highly successful and fast growing organisation has an exciting opportunity for a Lead Software Developer (PYTHON/AWS). JOB PURPOSE Part of the extended Technology Leadership Team, the Lead Software Developer will design, implement, and maintain publishing software, systems, and customer More ❯