Average Web Developer salary in London

Handle are currently working with a global entertainment brand who are looking for an Interim Senior Web App Developer to join their busy team! The role focuses on designing, building, and maintaining scalable, secure web applications while collaborating with stakeholders to deliver seamless cross-platform solutions and drive continuous improvement.Key responsibilities include -Build and maintain complex web applications using ASP.NET MVC 5, C#, and React, applying strong problem-solving skills to improve performance and qualityContribute to front-end development with HTML5, CSS3, JavaScript, and ReactManage source control, branching, and deployments using GitLab or Azure PipelinesMentor and guide junior and mid-level developers on technical best practicesSupport technology migrations with clean architecture, scalable design, and smooth implementationDeliver secure, scalable, high-quality code aligned with architecture and sprint goalsContinuously explore new technologies to improve platform and team capabilityParticipate in architectural decisions to enhance performance, scalability, and maintainabilityCandidate requirements -8+ years' experience in digital development, with a strong portfolio in bespoke eCommerce and enterprise web applicationsExperienced in RESTful APIs, with knowledge of SOAP, XML, and XPathExpertise in C#, ASP.NET MVC 5, SQL Server, and Entity Framework; experience with HTML5, CSS3, JavaScript, and ReactStrong grounding in OOP, SOLID principles, and design patternsProficient with Git, GitFlow, SourceTree, and NuGetExperience with CI/CD and DevOps tools (GitLab, Azure DevOps, TeamCity, Cake, Octopus)Familiar with Agile (Scrum/Kanban) and tools like JiraHandle actively welcomes applicants from under-represented backgrounds - we pride ourselves on attracting the best talent for every opportunity through a commitment to equality, diversity and inclusion.

Web Developer CMSRemote (UK)Salary: £35,000 – £50,000About the Company We are working with a leading UK pensions and insurance consulting and administration business. A FTSE 250 company, our client supports over 1,400 pension schemes, administers more than one million member accounts, and partners with insurance companies across the life and bulk annuities sector.They are known for combining industry expertise with innovative technology solutions, offering a collaborative environment and strong focus on professional development.About the Role We are looking for a talented Web Developer (CMS Specialist) to join a growing IT Development and Delivery team. In this role, you will take ownership of developing and maintaining client-facing self-service websites, ensuring they are visually engaging, high-performing, and user-friendly.You will act as the subject matter expert for CMS platforms, working closely with product owners, designers, and stakeholders to deliver seamless digital experiences. This is an excellent opportunity to work in a collaborative environment where innovation and continuous improvement are encouraged.Key ResponsibilitiesManage, maintain, and enhance client websites built on CMS platforms (particularly Umbraco)Troubleshoot and resolve technical issues efficientlyImplement new features and improve existing functionalityCollaborate with digital teams and external design agenciesLiaise with clients to understand requirements and provide updatesEnsure websites are accessible, responsive, and optimised across devicesDevelop and maintain unit tests for software componentsSupport automated testing processes and frameworksManage CMS upgrades and ensure systems remain up to dateFollow release processes, including producing release notesMonitor development progress and resolve production issuesStay up to date with industry trends and best practicesSkills & ExperienceStrong experience with CMS platforms, particularly UmbracoSolid understanding of front-end development, with some back-end knowledgeExperience with JavaScript, C#, and .NET technologiesFamiliarity with ASP.NET Core MVC, Web API, and CMS-based solutionsStrong troubleshooting and debugging skillsGood eye for design and experience working with design teamsExperience delivering responsive and accessible web solutionsFamiliarity with tools such as Azure DevOps or JIRA/ConfluenceExcellent communication skills, both technical and non-technicalAbility to manage multiple projects and work in a fast-paced environmentExperience within financial services or pension platforms is a plus, but not essential.What’s on OfferCompetitive salary (£35,000 – £50,000)Bonus or profit share scheme25 days holidayPension schemeFlexible benefits package (health, wellbeing, lifestyle, and protection)Life assuranceRetail discounts and rewards platformInterest-free season ticket loanDue to the volume of applications received for positions, it will not be possible to respond to all applications and only applicants who are considered suitable for interview will be contacted. Proactive Appointments Limited operates as an employment agency and employment business and is an equal opportunities organisationWe take our obligations to protect your personal data very seriously.  Any information provided to us will be processed as detailed in our Privacy Notice, a copy of which can be found on our website

SENIOR WEB APPLICATION DEVELOPER – F# / ASP.NET Core / SQL / Web DevelopmentF# / ASP.NET Core / SQL / React / Elmish / SAFE StackThe Company:A well-established and respected software development company, specialising in creating high-quality, web-based enterprise software for a range of clients within the health and social care sector. The Role:We are seeking an experienced Senior Web Application Developer to join our Core Engineering team. You will be responsible for designing, developing, testing, and supporting web-based enterprise software, primarily written in F#. Reporting to the Development Manager, you'll collaborate with the team to analyze requirements, specify systems, and develop new features for existing systems or entirely new solutions. This role also involves managing small teams of developers for independent projects, driving best practices, and ensuring the delivery of high-quality software.As a Senior Developer, you will also be involved in guiding clients to successful solutions, maintaining software dependencies, writing reports and queries for SQL databases, and ensuring proper packaging and delivery of software.The Requirements:A 2:1 or First Degree in a science or engineering discipline (ideally from a Top 30 University).At least 2 years of professional experience in web application development, ideally with a strong focus on F# or .NET Core technologies.Strong experience with ASP.NET Core and SQL Server.Experience with Fable, Elmish, React, or the SAFE Stack (F# to JS transpilation) is highly desirable.Knowledge of Webpack, SASS, and working in modern development environments.Proactiveness: A self-motivated individual with the ability to manage projects and team members effectively.Quick Learner: Willingness to dive into new technologies and become an expert in existing systems.Effective Technical Communicator: Capable of explaining complex technical concepts clearly, receiving constructive feedback, and justifying solutions.Teamwork and Responsibility: Comfortable managing small teams and collaborating with colleagues to meet business objectives.Additional Experience (Desirable):Experience working on service-oriented architectures or microservices.Understanding of Message Queuing and System Testing.Commercial awareness with the ability to balance technical decisions with business goals.Why Apply:Opportunity to work with a talented and passionate team.Exposure to a variety of technologies and projects.A chance to play a key role in shaping the software solutions for our clients.Flexible work arrangements and a commitment to professional development.