Average Software Developer salary in the UK

We're looking for an experienced Senior Software Developer to join a highly technical engineering team developing systems that directly support trading strategies, automated trading, and quantitative research.This opportunity suits a strong C#/.NET engineer who enjoys complex technical challenges, performance-critical development and influencing how software is designed and built. Working across greenfield projects and established platforms, you'll take ownership of significant development work and help shape architecture, technical direction, and engineering standards. You'll collaborate closely with quantitative researchers, traders, and experienced engineers, translating complex requirements into reliable, scalable software. This is a full-time office based role in central London.The Role:Design and develop high-performance applications using C# and modern .NET.Own complex projects from initial requirements and technical design through to production.Shape architecture and contribute to key technical decisions.Build scalable systems supporting trading, research and data-intensive applications.Develop and optimise relational database solutions using SQL Server, Oracle or similar technologies.Investigate performance bottlenecks and improve application and database efficiency.Apply multithreading, concurrency and asynchronous programming to demanding engineering problems.Strengthen software quality through code reviews, automated testing and continuous integration.Mentor other developers and help maintain high engineering standards.Skills Required:At least five years' commercial software development experience, with strong expertise in C# and modern .NET.Excellent understanding of object-oriented programming, software design principles and architecture.Experience delivering production applications where performance, reliability and scalability are essential.Strong SQL skills and experience with relational databases.A thorough understanding of the full software development lifecycle.Strong analytical skills and a practical approach to solving complex problems.Clear communication skills and the ability to work effectively with technical and non-technical colleagues.A degree in Computer Science, Mathematics, Physics, Engineering, or a related technical discipline.Desirable Experience:Low-latency, high-throughput, multithreaded or parallel systems.Network programming using TCP/IP or UDP.Distributed systems and service-oriented architectures.Performance profiling and optimisation.Windows development technologies, Git and modern development workflows.Financial markets, algorithmic trading or quantitative research.Working directly with quantitative analysts, researchers, traders or data scientists.Why Apply?This is an opportunity to take on technically demanding work with a direct connection to trading and research. You'll have meaningful ownership, influence over engineering decisions and the chance to build high-performance software alongside colleagues with deep technical and quantitative expertise.If you're an experienced C#/.NET developer looking for technical depth and the opportunity to shape complex systems, we'd like to hear from you.Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.

Software DeveloperUp to £50,000 per annum + benefitsChippenham, WiltshirePermanentWe're looking for a talented Software Developer to join a busy development team, working on a mix of existing systems and new software solutions.You'll take ownership of developing, improving and maintaining applications, working with C#, .NET and SQL Server, alongside a range of modern technologies. From building APIs and optimising databases to modernising legacy systems, this is a varied role where your technical expertise will make a real impact.Working within an Agile team, you'll have the opportunity to contribute ideas, solve complex problems and help shape reliable, secure and high-performing software.What You'll Be Doing:Developing and maintaining applications using C# and .NETBuilding web applications, APIs and desktop solutionsDesigning, managing and optimising SQL Server databasesImproving and modernising existing systems and codeWriting clean, efficient and maintainable codeCarrying out testing, debugging and code reviewsWorking with Azure DevOps, Git and CI/CD pipelinesCollaborating with the wider team to deliver projects on time and to a high standardWhat We're Looking For:Strong commercial experience with C# and .NETExperience with MVC, Razor or BlazorSolid SQL Server skills, including complex queries and performance tuningExperience developing and integrating REST APIsKnowledge of Entity Framework and JavaScript or TypeScriptFamiliarity with Git, Azure DevOps and CI/CDAn understanding of Agile development and software architectureA proactive, analytical approach with strong problem-solving skillsThe ability to work independently while being a great team playerWhat's on offer?Salary up to £50,000 per annum (depending on experience)25 days annual leaveHybrid working - Tuesday to Thursday office-based1 day of birthday leave per annumLife assuranceFree on-site parkingElectric car charging pointsSuccessful candidates will be contacted within 7 working days of application. If you do not hear from us within this time, please assume that your application has been unsuccessful.

Job Title: Software EngineerLocation: Birmingham / HybridSalary: £32,000 - £45,000 per annumPosition: Permanent, full-timeAbout The Company:The Company is a long-established web and app development agency based in the Jewellery Quarter, specialising in AI integration, SaaS products, apps and portals.Job Role:This is a hands-on, mid-level Software Engineer role with responsibility for delivering complete features and projects. You will work independently with light oversight from a Lead Engineer, delivering projects with a moderate level of technical risk or substantial parts of larger projects. You will own your work from the initial ticket through to a working, supportable feature in production.You will make technical decisions within your area of responsibility and judge when to seek a second opinion. You will raise higher-risk and architecture-level decisions with your lead early, bringing options and a recommendation. Your lead will support you with project-level technical risk.The role has no people-management responsibilities. You are encouraged to support junior engineers informally, while remaining focused on the quality, reliability and clarity of your own work.Your responsibilitiesDeliver features that are working, tested, documented and in use. Check for defects or unexpected behaviour after delivery and follow through without needing reminders.Make technical decisions that balance maintainability, security, performance and the client's needs. Understand which decisions you can make, which need your lead's input and which require further escalation.Identify risks and trade-offs early. Explain the current position, the impact on the project, what is already handled and what remains unresolved. Bring a proposed course of action so your lead can confirm, adjust or step in, and raise problems while there is still time to act.Build full-stack web and mobile applications, typically involving React Native, SQL-backed APIs and AWS hosting. Be comfortable working in the framework or language each project requires.Write clean, tested, well-structured code that follows team standards. Work collaboratively through Git, pull requests and CI/CD pipelines.Use AI-assisted tools to improve speed and quality. Review and validate their output, taking responsibility for the software you deliver.Keep your lead and project manager informed about progress, implications, resolved and outstanding issues, and any support or decisions you need. Explain technical choices clearly to project managers and, where needed, clients.Document decisions, context and operational knowledge so another engineer can pick up your work without relying on your memory.Identify recurring problems and suggest changes that prevent them. Put practical improvements in place within your area, such as checklists, clearer standards, tests, automation or better ticket templates.Contribute to better tickets, estimates, refinement and delivery flow. Apply lessons from retrospectives to your work.Keep clear ownership, a dated next step, any required decision or escalation, and a backup plan for the work you own. Resolve issues affecting your delivery or make clear who needs to take responsibility.Explain the trade-offs you chose as well as the constraints you faced when reporting on your work.Experience and capabilitiesYou will need:Commercial programming experience consistent with a mid-level engineer, with evidence of delivering features or parts of projects from start to finish.Solid capability in an object-oriented back-end language, with PHP/Laravel strongly preferred, and a modern front-end framework such as React or React Native. TypeScript is desirable.Good working knowledge of SQL and relational database design, and an understanding of MVC and RESTful API principles.Familiarity with Git-based team workflows, code review, automated testing and CI/CD.The ability to solve complex problems and become effective quickly with unfamiliar technologies.Clear written and verbal communication with technical and non-technical colleagues.Evidence of working independently, making informed decisions within your responsibilities, and knowing when and how to seek support.A practical, curious approach to new tools and AI-assisted development, with a willingness to experiment and assess their value through evidence and measurable results.Additional Information:We value a diverse workforce and believe that people from different backgrounds can bring fresh ideas, thinking and approaches to the way we work. We welcome everyone from everywhere to come and join our team.Applicants must have the right to work in the UK. We are unable to offer visa sponsorship for this role.The job title and salary offered will be dependent on the candidate's experience and demonstrated capability.Please click APPLY to submit your CV and Cover Letter for this role.Candidates with experience of the following may also be suitable to apply for this role;Software Engineer, Software Developer, Full Stack Developer, Web Developer, App Developer, Frontend Developer, Backend Developer, Junior Software Engineer, Junior Developer, Graduate Developer, Trainee Developer, SaaS Developer, Portal Developer, Mobile App Developer, AI-Assisted Development, AI Pair Programming, Agentic Coding, AI Coding Agents, Cursor, Claude Code, GitHub Copilot, OpenAI Codex, ChatGPT