26 to 50 of 268 Senior Developer Jobs in London

Senior C# Developer/Engineer (C# .Net Core) London/WFH to £85k Are you a skilled C# Developer looking to progress your career in a senior, hands-on role? You could be at a successful and scaling Retail FX Brokerage working on Greenfield systems. … Senior C# Developer you'll be designing and developing high quality, maintainable, and reliable code for a real-time, low latency trading systems built mostly in C# and React deployed to Azure. You'll focus on C# .Net backend development within an AWS environment, but also with exposure ...

Senior Developer - Healthcare Projects Location: UK Remote Rate: £300-350 Inside IR35 Duration: 6 months Start: January (BPSS clearance required before start; SC likely to follow) Fully Remote Need NHS Experience We're seeking Senior Developers to join a high-profile healthcare programme delivering modern, secure ...

Senior Developer - Healthcare Projects Location: UK Remote Rate: £(Apply online only) Inside IR35 Duration: 6 months Start: January (BPSS clearance required before start; SC likely to follow) Fully Remote Need NHS Experience We're seeking Senior Developers to join a high-profile healthcare programme delivering modern, secure ...

Senior Python Developer looking to help shape the future of how schools use technology to empower learners across the UK? We are searching for a Senior Python Developer/Lead Python Developer who can guide a talented engineering team and push the boundaries of what … Fancy taking ownership over building scalable Python applications, driving Agile delivery, and designing robust AWS-based systems using modern Infrastructure-as-Code approaches? Role: Senior Python Developer, Python Software Engineer, Python Developer, Lead Python Developer Location: 100% work from home/Remote Salary: £55k - £62k base ...

Senior Fullstack Developer – EdTech 3-4 days p/week in London Paying up to £80k Senior Fullstack Developer – Would you like the opportunity to work for an EdTech start-up who are on a mission to create an AI tutor to help learners? They … full potential. AI is at the heart of everything they do, from their products to the way they work as a team. As a Senior Fullstack Developer, you will be joining a small team, where you will build, scale, and maintain high-quality fullstack applications while collaborating closely ...

Senior Fullstack Developer – EdTech 3-4 days p/week in London Paying up to £80k Senior Fullstack Developer – Would you like the opportunity to work for an EdTech start-up who are on a mission to create an AI tutor to help learners? They … full potential. AI is at the heart of everything they do, from their products to the way they work as a team. As a Senior Fullstack Developer, you will be joining a small team, where you will build, scale, and maintain high-quality fullstack applications while collaborating closely ...

Senior Developer 6 months Remote Inside IR35 - Umbrella only Active SC security cleared or eligible candidates will be considered Experience: Experienced in TDD and working with complex data challenges. Python as the preferred back-end language for new services, however we also need to support languages including Java ...

Senior Ruby on Rails Engineer, London, £90,000 - £105,000 + Bonus We’re working with a growing SaaS company solving one of ecommerce’s biggest barriers—buyer trust. Their platform quietly supports hundreds of thousands of retailers and millions of online purchases every month. Growing organically year … year at an impressive rate, they’ve built a loyal customer base in well over 100 countries by focusing on product quality, speed, and developer-led innovation. The Senior Software Developer (Full‐stack) will work across Ruby on Rails, JavaScript, SQL, and AWS to deliver high-quality ...

Senior Ruby on Rails Engineer, London, £90,000 - £105,000 + Bonus We’re working with a growing SaaS company solving one of ecommerce’s biggest barriers—buyer trust. Their platform quietly supports hundreds of thousands of retailers and millions of online purchases every month. Growing organically year … year at an impressive rate, they’ve built a loyal customer base in well over 100 countries by focusing on product quality, speed, and developer-led innovation. The Senior Software Developer (Full‐stack) will work across Ruby on Rails, JavaScript, SQL, and AWS to deliver high-quality ...

Senior Azure Developer - Active SC, Azure Service Bus, D365 Up to £550 per day (Inside IR35) London/Remote 12 months My client is an instantly recognisable consultancy who urgently requires a Senior Developer with Active Security Clearance (SC), and expertise in Azure Service ...

Senior Derivatives UI Developer/Lead Banking London This is a new and exclusive opportunity for a Senior Derivatives UI Developer/Lead to join my thriving investment banking client as they are expanding their software development team who lead on derivatives projects Role details Title … Senior Derivatives UI Developer/Lead Employer: investment bank Permanent role salary £100,000- £130,000 plus bonus and pension Location: London City and home working hybrid- 50/50% Requirements: Java, React, UI Skills, business knowledge in derivatives/risk and pricing We're looking ...

Senior Derivatives UI Developer/Lead Banking London This is a new and exclusive opportunity for a Senior Derivatives UI Developer/Lead to join my thriving investment banking client as they are expanding their software development team who lead on derivatives projects Role details Title … Senior Derivatives UI Developer/Lead Employer: investment bank Permanent role salary £100,000- £130,000 plus bonus and pension Location: London City and home working hybrid- 50/50% Requirements: Java, React, UI Skills, business knowledge in derivatives/risk and pricing We're looking ...

Senior Developer 6 months Remote Inside IR35 - Umbrella only Active SC security cleared or eligible candidates will be considered Experience: Experienced in TDD and working with complex data challenges click apply for full job details ...

Senior Frontend Developer – TypeScript, React 2 days p/week in London Up to £100k Would you like the opportunity to join an early-stage start-up who are looking to revolutionise the logistics space? They recently closed a round of funding and are now seeking a Senior Frontend Developer, who’s confident working with React and TypeScript. As a Senior Frontend Developer, you will be responsible for taking their product to the next level. You will be directly responsible for developing and maintaining their frontend application, while working closely with the Head ...

Senior Frontend Developer – TypeScript, React 2 days p/week in London Up to £100k Would you like the opportunity to join an early-stage start-up who are looking to revolutionise the logistics space? They recently closed a round of funding and are now seeking a Senior Frontend Developer, who’s confident working with React and TypeScript. As a Senior Frontend Developer, you will be responsible for taking their product to the next level. You will be directly responsible for developing and maintaining their frontend application, while working closely with the Head ...

Senior iOS App Developer A leading retailer are looking for a Senior iOS App Developer to join their Mobile Team to contribute to the development and evolution of their Mobile App. As the Senior iOS App Developer, you will be responsible for building … version of the app, ensuring it delivers a pixel-perfect, performant, and luxury-aligned experience for customers. You will be a high-performing developer who thrives on clean architecture, elegant code collaborative delivery whilst working as part of an Agile cross-functional team. Skills and Experience * Strong proficiency ...

Senior Android App Developer A leading retailer are looking for a Senior Android App Developer to join their Mobile Team to contribute to the development and evolution of their Mobile App. As the Senior Android App Developer, you will be responsible for building … Android version of the app, ensuring it delivers a pixel-perfect, performant, and luxury-aligned experience for customers. You will be a high-performing developer who thrives on clean architecture, elegant code collaborative delivery whilst working as part of an Agile cross-functional team. Skills and Experience * Strong proficiency ...

Vanilla JS Developer We need a Senior JavaScript Developer that gets excited about doing Vanilla class based ES JavaScript. The client loves React. Ideally Hybrid, 1-3 days a week in the London office. However, we will consider UK based remote developers. Preference will be given … candidates that are Hybrid. A great career opportunity has arisen for a Senior JavaScript Developer in London, to join an established and creative Agency. The JavaScript Developer will need solid knowledge of Vanilla JavaScript and React. This JavaScript Developer role will suit someone who is looking ...

Vanilla JS Developer We need a Senior JavaScript Developer that gets excited about doing Vanilla class based ES JavaScript. The client loves React. Ideally Hybrid, 1-3 days a week in the London office. However, we will consider UK based remote developers. Preference will be given … candidates that are Hybrid. A great career opportunity has arisen for a Senior JavaScript Developer in London, to join an established and creative Agency. The JavaScript Developer will need solid knowledge of Vanilla JavaScript and React. This JavaScript Developer role will suit someone who is looking ...

Senior Python Developer - Python, Flask, SQL, AWS OB have partnered with a FinTech company, who are looking to bring on a Senior Python Developer to their highly skilled engineering team, where you'll have the opportunity to work closely with the CTO & Head of Engineering … role, you'll design highly complex systems and applications, writing high-quality and scalable code, to optimise the performance of their Python based applications. Senior Python Developer - Python, Flask, SQL, AWS Required skills and experience: 6+ years of commercial experience using Python Highly skilled with Python Experience with ...

Senior Python Developer - Python, Flask, SQL, AWS OB have partnered with a FinTech company, who are looking to bring on a Senior Python Developer to their highly skilled engineering team, where you'll have the opportunity to work closely with the CTO & Head of Engineering … role, you'll design highly complex systems and applications, writing high-quality and scalable code, to optimise the performance of their Python based applications. Senior Python Developer - Python, Flask, SQL, AWS Required skills and experience: 6+ years of commercial experience using Python Highly skilled with Python Experience with ...

Senior Python Developer - Python, Flask, SQL, AWS OB have partnered with a FinTech company, who are looking to bring on a Senior Python Developer to their highly skilled engineering team, where you'll have the opportunity to work closely with the CTO & Head of Engineering … role, you'll design highly complex systems and applications, writing high-quality and scalable code, to optimise the performance of their Python based applications. Senior Python Developer - Python, Flask, SQL, AWS Required skills and experience: 6+ years of commercial experience using Python Highly skilled with Python Experience with ...

Senior Python Developer - Python, Flask, SQL, AWS OB have partnered with a FinTech company, who are looking to bring on a Senior Python Developer to their highly skilled engineering team, where you'll have the opportunity to work closely with the CTO & Head of Engineering … role, you'll design highly complex systems and applications, writing high-quality and scalable code, to optimise the performance of their Python based applications. Senior Python Developer - Python, Flask, SQL, AWS Required skills and experience: 6+ years of commercial experience using Python Highly skilled with Python Experience with ...

Senior SITS Developer | £55k - £68k | Remote We're partnering with a university who are ambitious and working on exciting projects. You'll be joining a small, collaborative team of SITS, Salesforce, and integration specialists with a genuine appetite for cross-skilling and modernising processes. Why This Role … Exceptional for a SITS Developer? Most SITS roles fall into one of two categories: BAU-heavy, little influence, repetitive support work Project-heavy but siloed with little say in system direction This role is neither. Title: Senior SITS Developer Duration: Permanent Location: Fully Remote Salary ...

Senior Java Developer - Remote Working Lynx are currently working with a large IT consultancy to help them source a Senior Java Developer . Our client is large global Consultancy who work with enterprise clients, solving their business and technology problems using cutting edge Solutions. Responsibilities: Engaging … practices in software engineering across teams and projects Key skills and experience: Must be either SC cleared or eligible Experience working as a Java Developer Java development experience Experience working within cloud environments If this role sounds of interest, then please apply with your updated CV. ...