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Senior Developer United Kingdom Jobs

112 Job Offers

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Senior Servicenow Developer And Integration Specialist
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Senior ServiceNow Developer & Integration Specialist sought for a fully remote UK contract with a top consultancy. You will bridge platform development and complex enterprise integrations, configuring ITSM/ITOM modules and CMDB. Expertise in REST/SOAP APIs, Integration Hub, and MID Server is esse...
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United Kingdom , City of London
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Salary
44.25 GBP / Hour
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Randstad
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Senior C++ Developer
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Senior C++ Developer sought by a UK leader in document distribution, serving the NHS and government. You will mentor teams, reduce technical debt, and deliver high-quality Windows services in Milton Keynes. Requires deep modern C++ expertise, architectural skills, and cloud experience (AWS/Azure)...
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United Kingdom , Milton Keynes
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51000.00 - 63000.00 GBP / Year
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PLANET RECRUITMENT SERVICES LTD
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Senior C++ Developer
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Senior C++ Developer sought for a Bristol-based R&D team, building and maintaining core applications. You will leverage advanced C++ expertise to reduce technical debt, mentor developers, and champion best practices. This role offers a chance to shape architectural strategy and deliver high-quali...
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United Kingdom , Bristol
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51000.00 - 63000.00 GBP / Year
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PLANET RECRUITMENT SERVICES LTD
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Senior Full-Stack Developer
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Senior Full-Stack Developer sought to build digital tools scaling public engagement for social good. You'll maintain Zeitgeist, our deliberative platform, using React, TypeScript, C#, and AWS. Based in London, this role offers private medical and dental insurance. Join a mission-driven team pione...
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United Kingdom , London
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Salary
75000.00 GBP / Year
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Nesta
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Senior React Developer
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Senior React Developer sought by elite FinTech firm in London to build greenfield, enterprise-grade trading applications. You will design dynamic UIs and data-intensive tools for global teams, leveraging deep React expertise. Requires a STEM degree and strong communication skills. Benefits includ...
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United Kingdom , London
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180000.00 GBP / Year
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Hunter Bond
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Senior Servicenow Developer
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Senior ServiceNow Developer sought to architect and deliver enterprise-scale HR Service Delivery solutions. This role demands expertise in NowAssist for Generative AI, plus integration with Workday, Entra, and Microsoft 365. Based in Glasgow or Northampton, you will drive agile delivery, set tech...
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United Kingdom , Glasgow; Northampton
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Not provided
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Barclays
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Senior Full Stack Developer
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Senior Full Stack Developer sought by an innovation-led London organisation using AI and digital products to solve complex societal challenges. This hands-on role involves owning a core platform, building new features with React, TypeScript, and C#, and integrating AI capabilities. You will enhan...
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United Kingdom , London
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65000.00 - 75000.00 GBP / Year
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Data Idols
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Senior Product Developer
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Senior Product Developer sought to lead innovation for Wiltshire Farm Foods in Trowbridge, UK. Drive market-leading meals and desserts from concept to launch, leveraging proven food development and project management skills. Join a passionate team of chefs and technologists, enjoying a competitiv...
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United Kingdom , Trowbridge
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Not provided
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apetito UK
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Senior IDMC / IICS Developer
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Senior IDMC / IICS Developer sought for a global data engineering team in City of London. You will design and optimize enterprise-scale data pipelines using Informatica IDMC, CDI, and CAI. Requires 6-8 years of ETL experience, deep cloud integration skills with Snowflake or Databricks, and expert...
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United Kingdom , City of London
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50000.00 - 60000.00 GBP / Year
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Randstad
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Efx Senior Java Developer
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Join UBS Global Markets as an eFX Senior Java Developer in London. You will design low-latency, high-throughput algorithmic trading platforms, collaborating with quantitative analysts on pricing and execution strategies. This role involves full ownership of initiatives, from market connectivity t...
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United Kingdom , London
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Not provided
ATYETI
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Python Counterparty Credit Risk Senior Developer, Vice President
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Senior Python Developer, Vice President role in London with Citi’s Financial Risk Technology team. You will build and optimize counterparty credit risk applications, integrating pricing models and enhancing CI/CD pipelines. Requires expert Python skills, derivatives analytics experience, and stro...
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United Kingdom , London
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Not provided
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Citi
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Senior Integration Developer
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Senior Integration Developer sought to design and build scalable API and data pipeline solutions on Azure. Join Greene King’s Technology team to drive digital innovation in hospitality. Requires expertise in Azure DevOps, Data Factory, and Agile delivery. Enjoy a competitive salary, 33% pub disco...
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United Kingdom , Sunrise House
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Not provided
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Greene King
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Senior Business Central Developer
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Senior Business Central Developer needed for a live, multi-entity ERP transformation in the UK. You will drive hands-on AL development, Power Platform solutions, and system integrations within a fast-paced environment. Ideal for a developer comfortable balancing support, project work, and shaping...
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United Kingdom
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Not provided
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Myn
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Senior Salesforce Commerce Cloud Developer
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Senior Salesforce Commerce Cloud Developer needed to scale global ecommerce platforms for a leading consumer brand in London. You’ll build and extend SFCC solutions, integrate ERP/CRM systems, and work with React/JavaScript in an Agile environment. Ideal for full-stack engineers with strong SFCC ...
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United Kingdom , London
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70000.00 GBP / Year
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Salt
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Senior Front Office Developer
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Senior Front Office Developer sought by Barclays in London to design and deliver high-quality software solutions using Python, Java, and .NET. You will tackle server-side and multi-threaded development in an Agile environment, collaborating across regions. Ideal candidates bring experience in web...
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United Kingdom , London
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Not provided
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Barclays
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Senior C# / .NET Developer
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Senior C# / .NET Developer sought for a 6-month contract (London, Hybrid) within a top-tier financial institution. You will design high-performance systems for Risk Management and Securities Lending, focusing on complex calculations and API design. Requires 10+ years of experience in Financial Se...
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United Kingdom , London
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Salary
550.00 - 585.00 GBP / Day
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Randstad
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Senior Java Developer (AVP)
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Senior Java Developer (AVP) at Citi in Belfast. Join a global team redefining finance, building high-scale systems that process $5 trillion daily. You will develop robust applications using Core Java, Spring Boot, and Microservices, with hands-on AI tool experience. Enjoy 27 days leave, bonus, pr...
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United Kingdom , Belfast
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Not provided
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Citi
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Python Counterparty Credit Risk Senior Developer, Vice President
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Senior Python Developer, Vice President role at Citi in London, driving counterparty credit risk applications within the Analytical Calculation Engine (ACE) team. Expert-level Python, derivatives pricing, and CI/CD skills required. Collaborate with Quant and Front Office teams on distributed comp...
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United Kingdom , London
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Not provided
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Citi
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Senior Salesforce Developer
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Senior Salesforce Developer sought to lead Service Cloud and Experience Cloud solutions in London. This hybrid role demands proven Salesforce expertise, Agile experience, and full SDLC proficiency. You will design scalable solutions, leverage CI/CD tools, and collaborate with stakeholders to enha...
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United Kingdom , London
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73000.00 - 85000.00 GBP / Year
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360 Resourcing Solutions
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Senior PHP Developer
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Senior PHP Developer (Symfony) – Leeds, Hybrid (2 days onsite). Up to £65,000. Join a collaborative tech team building scalable web platforms and APIs for a global education leader. You’ll own backend development, refactor code, and mentor juniors. Ideal for a senior engineer with strong PHP, MyS...
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United Kingdom , Leeds
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60000.00 - 65000.00 GBP / Year
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Fynity
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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.