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Senior Developer United Kingdom Jobs

103 Job Offers

Senior .NET Developer
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Senior .NET Developer role in Manchester, UK, driving innovation in the global betting and gaming industry. You'll leverage C#, WebAPI, and SOA expertise to integrate front-end systems with proprietary platforms. Key benefits include a £50k-£65k salary, generous bonuses, and enhanced parental lea...
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United Kingdom , Manchester
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50000.00 - 65000.00 GBP / Year
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360 Resourcing Solutions
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Senior Kdb+ Developer
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Senior Kdb+ Developer needed for a front-office technology team in London, building a high-performance KDB platform for equities. You will develop real-time and batch ingestion pipelines and analytics solutions for trading desks. Requires extensive KDB+/q expertise, low-latency system design, and...
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United Kingdom , London
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Not provided
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Barclays
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Until further notice
Senior Java Developer - Credit Risk Technology, Vice President
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Senior Java Developer role in Credit Risk Technology at Vice President level, based in London. You will lead application development using Core Java, Spring Framework, and distributed caching, driving Agile, test-driven projects. Key requirements include deep Capital Markets knowledge, derivative...
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United Kingdom , London
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Not provided
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Citi
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Until further notice
Senior Backend Developer
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Senior Backend Developer sought for a hybrid role in London with a sustainable UK energy provider. You will build full-stack cloud apps using Python and AWS, adopting a serverless-first approach. Key requirements include expertise in RESTful APIs or GraphQL, Git, and TDD. This six-month contract ...
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United Kingdom , London
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Not provided
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Rullion
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Until further notice
Senior Full Stack Developer
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Senior Full Stack Developer sought for a Glasgow-based role. You will design and deliver high-quality software using Java, Springboot, and React, with a focus on microservices and system performance. Collaborate cross-functionally, conduct code reviews, and implement secure, tested solutions. AWS...
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United Kingdom , Glasgow
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Not provided
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Barclays
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Senior ServiceNow Developer
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Senior ServiceNow Developer sought to lead HR Service Delivery transformation at Barclays in Glasgow or Knutsford. This role combines hands-on development with technical leadership, architecting enterprise-scale solutions and integrating with Workday and Microsoft ecosystems. Key requirements inc...
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United Kingdom , Glasgow; Knutsford
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Not provided
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Barclays
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Senior Full-Stack Developer (.NET + React)
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Senior Full-Stack Developer (.NET + React) sought by Sigma Software for a remote, full-time role in the UK. You will build cloud-native, AI-assisted solutions preventing automotive production faults. Requires expert-level .NET/C# and React.js, plus strong Kubernetes, AWS, and PostgreSQL skills. E...
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United Kingdom
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Not provided
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Sigma Software Group
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Senior Credit Systematic Trading Developer
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Senior Credit Systematic Trading Developer sought by a global financial institution to build next-gen electronic trading technology in London. You will design high-performance systems using Java, Python, and distributed architectures (Kafka, KDB+). Collaborate directly with traders and quants on ...
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United Kingdom , London
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Not provided
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Orbis Consultants
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Senior Oracle Developer
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Senior Oracle Developer needed for a long-term contract in London, supporting a large-scale enterprise transformation programme. You will develop and enhance Oracle EBS (12.2.x) applications, leveraging strong SQL, PL/SQL, and Oracle Financials (GL, AP, AR) expertise. Ideal for experienced develo...
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United Kingdom , London
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Salary
800.00 GBP / Day
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Hunter Bond
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Senior Developer - IT
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Senior C# Developer sought to lead enterprise and eCommerce system development in Newcastle, UK. You will architect cloud-based solutions using Azure Functions, MS SQL Server, and N-tier architectures. This role offers leadership mentoring, CI/CD pipeline management, and a discretionary bonus wit...
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United Kingdom , Newcastle
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60000.00 GBP / Year
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Parking Network B.V.
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Senior Developer – Equity Derivatives Technology – VP
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Senior Developer – Equity Derivatives Technology – VP sought for a London-based role leading the build of a pre-trade RFQ and pricing platform. You will drive technical delivery, working with React, APIs, and microservices alongside front office teams. This VP position demands expertise in financ...
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United Kingdom , London
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Not provided
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Citi
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Senior Developer (Java and React)
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Senior Developer (Java and React) sought for our Glasgow Investment Banking team. You will design and build high-performance trading and regulatory platforms, leveraging strong full-stack engineering skills with backend depth and UI ownership. This role demands hands-on problem-solving, cloud & D...
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United Kingdom , Glasgow
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Not provided
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Barclays
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Senior Quant Developer
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Senior Quant Developer sought by a top London quantitative fund to join a core systematic trading team. You will productionise models and build high-performance infrastructure using Python and C++. This role demands exceptional CS fundamentals and a collaborative, low-ego mindset. Join a world-cl...
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United Kingdom , London
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200000.00 GBP / Year
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Hunter Bond
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Senior Analyst Developer
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Senior Analyst Developer role in London with Citi’s Risk & Capital Technology team. You will build Counterparty Credit Risk solutions using Java, Spring, and cloud technologies (Docker, Kubernetes). Requires deep capital markets knowledge, derivatives expertise, and strong engineering leadership....
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United Kingdom , London
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Citi
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Senior Unica Developer
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Senior Unica Developer sought for a London-based role to lead complex campaign delivery, technical configuration, and platform optimisation. You will drive audience selection, cross-channel consistency, and mentor developers using Pega and Unica. Requires strong campaign management, agile experti...
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United Kingdom , London
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Not provided
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Vodafone
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Senior Java Developer Integrated Financial Crime
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Senior Java Developer sought for the Integrated Financial Crime (IFC) Program in Glasgow. You will drive backend development using Java, Spring Boot, and microservices, with a path towards architecture. Key skills include RESTful APIs, Kafka, and cloud-native components on OpenShift or AWS. Benef...
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United Kingdom , Glasgow
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Not provided
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Barclays
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Senior Java Developer (Smart Order Routing (SOR)) - Equities Electronic Trading
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Senior Java Developer sought for VP-level role in Equities Electronic Trading in Belfast. You will design and optimize a core low-latency Smart Order Router (SOR) using high-performance Java and microservices. Requires expert JVM internals, concurrency, and FIX protocol knowledge. Benefits includ...
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United Kingdom , Belfast
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Not provided
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Citi
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Senior Developer
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Senior Developer sought to redefine a market in London, UK. You will code in a cloud-native environment, building distributed services, APIs, and data-driven applications at scale. Key requirements include strong Java fundamentals, microservices architecture, and experience with relational/NoSQL ...
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United Kingdom , London
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Salary
100000.00 - 120000.00 GBP / Year
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Linux Recruit
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Senior Software Developer
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Senior Software Developer sought for a strategic, business-critical platform at a global financial services firm. This hands-on role requires strong Java backend expertise and experience building scalable applications within complex environments. Based in London with a hybrid model, you'll shape ...
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United Kingdom , London
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Salary
130000.00 GBP / Year
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Hunter Bond
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Senior Front End Developer
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Senior Front End Developer sought by Cold Banana, an award-winning Bournemouth-based agency. You'll build modern web apps using VueJS, React, or Angular, with 6+ years of JavaScript (ES6) and CSS expertise. Enjoy a competitive salary, 28+ holidays, annual bonus, health plan, and early Friday fini...
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United Kingdom , Bournemouth
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Salary
Not provided
Cold Banana
Expiration Date
Until further notice

About the Senior Developer role

Senior Developer Jobs represent the pinnacle of technical expertise and leadership within software engineering teams. Professionals in these roles are seasoned experts who not only write high-quality code but also architect complex systems, guide technical strategy, and mentor less experienced engineers. They are the crucial bridge between high-level business objectives and practical, robust technical implementation, ensuring that software solutions are scalable, secure, and aligned with long-term organizational goals.

Typically, a Senior Developer is responsible for the entire software development lifecycle of significant components or applications. This includes leading the design and architecture of new systems, often leveraging modern paradigms like microservices and event-driven architecture. They write, review, and debug complex code, setting standards for quality and maintainability. A key part of their role involves making pivotal technology stack decisions, selecting frameworks, databases, and tools that best fit project requirements. They collaborate closely with cross-functional teams, including product managers, business analysts, and other stakeholders, to translate business needs into technical specifications. Furthermore, Senior Developers are expected to drive best practices in coding, testing, and deployment, frequently overseeing CI/CD pipelines and advocating for DevOps and security principles (DevSecOps).

The common skill set for these jobs is both deep and broad. Mastery of one or more core programming languages (such as Java, Python, C#, or JavaScript) and their associated ecosystems is fundamental. Expertise in relevant frameworks (e.g., Spring Boot, .NET Core, React, Angular) is essential. Senior Developers possess a strong grasp of system design principles, database management (both SQL and NoSQL), and API design (REST, GraphQL). Experience with cloud platforms (AWS, Azure, GCP), containerization (Docker), and orchestration (Kubernetes) is increasingly standard. Beyond technical prowess, soft skills are critical: leadership, clear communication, effective mentorship, problem-solving, and the ability to manage time and priorities across multiple projects are what distinguish a senior professional.

Typical requirements for Senior Developer jobs often include a bachelor’s degree in computer science or a related field (or equivalent practical experience) and a substantial track record, usually between 5 to 10+ years of progressive software development experience. Demonstrated experience in leading development initiatives, making architectural decisions, and working within Agile/Scrum methodologies is commonly sought. The role demands a proactive, strategic thinker who stays abreast of emerging technologies and can drive innovation while ensuring system reliability and performance. For those seeking to advance their impact beyond pure coding into areas of design, strategy, and team leadership, exploring Senior Developer jobs is the definitive next step in a thriving tech career.