1 to 25 of 143 Senior Developer Jobs in London

Senior Scala Developer with solid functional programming understanding is sought on a remote basis by an international software house based in the UK. This Senior Scala Developer would be joining the innovation arm of the business tasked with building complex, highly scalable greenfield solutions utilised worldwide … deliver critical infrastructure. As such experience working on enterprise level applications would be a plus. This Senior Scala Developer will be joining a collaborative, continuous improvement focussed environment working within a mature estate but with scope to upskill in modern automation & containerisation technology. With a real commitment ...

Senior Developer - Full-Stack (C#, .NET, React, Azure) Location: Hybrid - London (1 day per week/fortnight onsite)Salary: Competitive up to £80000 + Excellent BenefitsType: Permanent Are you an experienced Senior Developer with strong full-stack skills and a passion for modern cloud technologies … exciting opportunity to join a forward-thinking organisation that is investing heavily in digital transformation and cutting-edge technology. About the Role As a Senior Developer, you'll play a key role in designing, developing and maintaining high-quality software solutions across both enterprise and client-facing environments. ...

Senior Backend Developer London (Hybrid - 1 day per month in the office) Basic salary £90k to £100k + strong package An exciting opportunity for a Senior Backend Developer to join a fast-growing, well-funded technology business that's scaling rapidly and investing heavily … someone who enjoys building reliable, well-designed Back End systems and wants to stay close to real product impact as the platform grows. The Senior Backend Developer will be part of a product-focused engineering team working on customer-facing, mission-critical systems at scale. The emphasis ...

Senior Developer - Active SC, Java, Oracle Up to £550 per day (Inside IR35) London/Hybrid 6 months My client is an instantly recognisable consultancy who urgently require a Senior Developer with Active Security Clearance (SC), to join a business-critical programme. Key Requirements: Proven experience … working as a Senior Developer within the public sector. Active Security Clearance (SC) Advanced proficiency in Java technologies (SE 8, EE 5/6/11, EJB, JSP) Proven experience supporting and modernising legacy applications Demonstrated ability to refactor complex codebases and develop robust automated tests Strong background ...

Senior Go Developer 6 Months Contract London Hybrid or Fully Remote An exciting opportunity for a highly skilled Senior Go Developer to join a leading technology business on a contract basis. This organisation is recognised for its engineering excellence and is seeking a Senior Go Developer to help scale distributed systems and deliver high-performance solutions. In this role, the Senior Go Developer will design, develop, and implement data-intensive applications across the full engineering lifecycle. You'll architect and deliver microservices-based systems using Go (Golang), AWS, Kubernetes, Docker ...

Senior Java Developer Hybrid - 2 days onsite Our client, a leading enterprise organisation undergoing significant digital transformation, is seeking an experienced Senior Java Developer to join their high-performing engineering team. This is an excellent opportunity for a seasoned professional who thrives in complex environments … with modern Java technologies at scale. What you’ll bring: Proven experience in software design and development with Java-based technologies Experience in a senior developer or technical leadership role Strong, hands-on expertise with Java , Spring Boot , and microservices architecture Solid experience building REST APIs and working ...

Senior C++ Developer (Python, SQL, Linux, Trading, FinTech, Financial Technology, Low Latency, Backend) ***This is a hybrid role, 3 days remote and 2 days in the office*** Our client actively encourages diversity, equality and inclusion within its workforce and welcomes applications from a diverse background, REC Solutions Limited … does not discriminate in regards to age, gender, national origin, religion or any other basis. An excellent opportunity has arisen for a Senior C++ Developerto join a friendly team my client are a well-established exchange (FinTech, Financial Technology) based in the City. My client are working with some ...

Snowflake Senior Developer Location: London (Hybrid) Seniority: Senior Individual Contributor Reports to: Data Engineering Lead/Manager --- Summary of role We are seeking a Snowflake Senior Developer to design, develop, and optimise data solutions on our cloud data platform. You will work closely with data ...

This is a remote position. A fantastic opportunity for a Senior Python Developer to join a UK-based technology organisation working on large-scale, cloud-native platforms within the education sector. Having grown their engineering capability, they are now looking to bring in a hands-on Team Lead … code while providing technical leadership and direction. Location: Remote (UK-based) Salary: £60,000 £70,000 per annum + benefits Requirements for Senior Python Developer Team Lead: Strong commercial experience working in a senior Python engineering capacity Degree educated in Computer Science or similar Experience operating ...

Senior Frontend Developer Up to £90,000 Central London - Flexible Hybrid Options Health-Tech A start-up within the health space are seeking a Senior Frontend Developer to lead a high performing squad of engineers building a unique SAAS platform which is radically streamlining an existing … complex process. You'd join as a Senior Frontend Developer and make a real impact on user facing features from the off while enhancing frontend architecture in order to accelerate the products ground-breaking advancements. As a Senior Frontend Developer, you will have the following: Strong ...

Senior C++ Developer/Software Engineer - London Based in the City of London (2 days in the office)/6 months rolling/£750 per day (Inside IR35) A global leading fintech solutions company and member of the Fortune 500, seek an experienced Senior C++ Developer … analysing, and modifying programming systems including encoding, testing, debugging and installing for a large-scale Mainframe computer system. Essential Duties and Responsibilities for the Senior C++ Developer/Software Engineer: Maintains project estimates and project management timelines for multiple major projects. Verifies completeness and accuracy of specifications ...

someone who is both comfortable working proactively and managing your own tasks, as well as confident collaborating with others and communicating regularly with senior managers, directors, and BDO's partners to help businesses effectively. You'll be encouraged to identify and draw attention to opportunities for enhancing our delivery … providing additional services to organisations we work with. As a Senior Developer, you will play a key role in designing, developing and maintaining high-quality software solutions. You will work closely with other developers, UX/UI designers and stakeholders to ensure that our products meet the highest ...

Senior C# Developer Location: London (Fully Onsite) Employment Type: Permanent Salary: £50,000 - £60,000 (DOE) Visa Sponsorship: Not available We're working with a London-based organisation that is looking to hire an experienced Senior C# Developer to join their engineering team in a fully … ideal for someone who enjoys hands-on development, working closely with the business, and taking ownership of complex systems. The Role As a Senior C# Developer, you'll be responsible for designing, developing, and maintaining business-critical applications built on C#/.NET and SQL . ...

Senior C++ Developer/Software Engineer (Linux SQL C++17) London/WFH to £110k Global-leading FinTech is seeking a Senior C++ Developer to take ownership of strategic enhancements on their core platform, as well as directly on bespoke client projects. The organisation is a pioneer … This is a great opportunity to accelerate your career alongside established business and technology leaders, and gain/deepen your finance experience. As a Senior C++ Developer, you'll be responsible for designing and building unique technical solutions, meeting user requirements and contributing to the evolution ...

deliver the best possible outcomes for our partners and clients. About the job Champion Data has an exciting opportunity for an experienced and dedicated Senior Developer to join our team! The Senior Developer is a key technical leader, leveraging their extensive experience to guide and mentor … delivering robust and scalable software solutions. This is a full-time permanent role based in the United Kingdom. We operate a hybrid model, with senior engineers typically spending 2–3 days per week in our central London office or client locations to support collaboration, mentoring, and team development. ...

Pricing Services and Risk Viewer Senior Developer Location: London - 3 days a week onsite Job Type: Full-time Salary: Competitive A new exciting permanent, Vice President level, Pricing Services & Risk Viewer Senior Developer to join an exciting growing GIT - CMI - Risk FX IT department with … global leading internation bank. This senior software development position requires a candidate with outstanding skills in C# and TypeScript/React, and a robust understanding of pricing models and risk analytics for both vanilla and exotic FX derivatives. The role involves close collaboration with business analysts, traders, and software ...

Senior Software Developer Location: Holborn, Central London (Hybrid) Reporting to: Head of AI and Technology Job Type: Full-time An exciting new permanent opportunity has become available for Senior Software Developers, to join a juggernaut organisation in the recruitment industry. A highly dynamic, ambitious and fast-growing … team dedicated to transforming the recruitment landscape through AI-driven, human-centered technology. They're looking for multiple Senior Software Developers to lead technical initiatives in a dynamic, AI-driven environment. If you have a track record of technical leadership and a passion for building innovative solutions, this role ...

Pricing Services and Risk Viewer Senior Developer Location: London - 3 days a week onsite Job Type: Full-time Salary: Competitive A new exciting permanent, Vice President level, Pricing Services & Risk Viewer Senior Developer to join an exciting growing GIT - CMI - Risk FX IT department with ...

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: £65k - £70k base ...

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: £65k - £70k base ...

Senior .NET Developer - .NET core - C# - Azure - Electronic trading organisation - Are you ready to bring your expertise to a company where your voice matters, your growth is supported, and your work makes a real impact? Miller Maxwell's client is building a diverse, collaborative team at a global … financial services firm with a FinTech mindset. As a Senior .NET Developer, you’ll lead greenfield projects in a supportive, agile environment that values innovation, inclusion, and balance. 🏡 Hybrid Working: 1-2 days in their London office (close to St Paul's), 3-4 days remote 🤝 Culture: Inclusive ...

Senior Go Developer 6 Months Contract London Hybrid or Fully Remote An exciting opportunity for a highly skilled Senior Go Developer to join a leading technology business on a contract basis. This organisation is recognised for its engineering excellence and is seeking a Senior Go Developer to help scale distributed systems and deliver high-performance solutions click apply for full job details ...

Senior Java Developer | Backend | Microservices | FinTech | London | Hybrid | £120k I'm proud to partner with a global financial organisation, creating an app that allows people in countries like Mexico, Argentina, Colombia, and Brazil manage money in digital dollars and digital euros and it’s designed to protect users … work with partners such as Mastercard, Stripe, OpenAI to make sure they leverage latest technology in all their products.They are looking for an experienced Senior Java Developer, predominantly on version 21 with PostGres Database and Spring Boot, to help develop their rapidly growing application, by building REST APIs ...

Senior Backend Developer (Java/Kotlin). Public Sector Contract. Transform Crime Data Management and Make a Difference. Up to £700 a day Inside IR35. 6 Month contract. Hybrid working from a hub of UK wide offices. Join the Electronic Monitoring team, a dedicated group focused on revolutionising … processes crime data efficiently. - Professional Growth: Engage with cutting-edge technologies and methodologies, enhancing your skill set and career trajectory. Key Responsibilities for the Senior Backend Developer: - Design and implement backend infrastructure to process crime data CSV files received from the police.- Develop APIs for secure data exchange ...

Senior Java Developer/Software Engineer (Java AWS Kafka) London/WFH to £140k Are you a Java technologist who enjoys building systems from scratch? You could be progressing your career, in a senior, impactful role at a global, cloud-native, prime broker that is replacing … custody system, designed for today's complex global markets. The company is experiencing great success and is expanding into the UK. As a Senior Java Developer you will take ownership of building a brand new Futures Trading platform for the UK, primarily using Java with a focus ...