3,312 Senior Developer jobs in the United Kingdom

React C# Software Engineer / Developer

A fantastic opportunity for a Software Engineer/Developer with commercial experience in React and C# to join a well-established software company developing browser-based solutions. This is an excellent opportunity for a high-calibre engineer to work on modern web technologies, contributing to exciting multi-tier web applications. You will be joining a collaborative team offering strong mentorship, career progression, and the chance to work on impactful projects.

Location: Lutterworth - Hybrid – minimum 2 days per week in office
 

Salary: £30,000 – £45,000 per annum + benefits (dependent on experience)
 

Requirements for React C# Software Engineer / Developer

• Commercial software development experience (ideally 2+ years)
li>Experience designing, developing, deploying, and supporting web clients using Classic ASP and JavaScript
• Strong experience with modern web frameworks, specifically React and Redux
• Experience in JavaScript development – both client-side scripting and server-side ASP
< i>Experience working with automated testing tools (e.g., QUnit for JavaScript or similar)
• Experience in multi-tier web application development
• Experience designing for accessibility standards
• Experience using SQL Server for database interactions
• Strong problem-solving skills and a proactive approach to learning
• Excellent communication and team collaboration skills

Responsibilities for React C# Software Engineer / Developer

• Design, develop, deploy, and support robust web-based applications
• Work on both front-end (React, JavaScript) and back-end (ASP, C#) development
• Collaborate with cross-functional teams including QA, Product Management, and UX/UI
• Contribute to the development of multi-tier web applications
• Ensure applications meet accessibility standards and best practices
• Write and maintain automated tests to ensure code quality and reliability
• Perform database interactions using SQL Server
• Support existing systems while contributing to the design of new solutions
• Participate in code reviews and knowledge sharing within the team

What the role offers

• A collaborative and supportive working environment
• Hybrid working model — flexible balance between office and remote work (minimum 2 days per week in office)
< i>Excellent training and mentorship from experienced engineers
• Competitive salary and benefits package
• Opportunities for career growth and progression within a stable, growing company

Applications for React C# Software Engineer / Developer

If you would like to apply for this unique opportunity, please send an up-to-date CV via the relevant link.

We’re committed to creating an inclusive and accessible recruitment process. If you require reasonable adjustments for your application or during the review process, please highlight this by separately emailing (if this email address has been removed by the job-board, full contact details are readily available on our website).

Keywords:
React Developer / C# Developer / Software Engineer / Web Developer / Front-End Developer / Full Stack Developer / ASP Developer / JavaScript Developer / SQL Server / Redux / QUnit / Multi-Tier Applications / Browser-Based Solutions / Hybrid Working / Cambridge / Permanent Right to Work / Accessibility Design / Web Software Engineer / Classic ASP

React C# Software Engineer / Developer

A fantastic opportunity for a Software Engineer/Developer with commercial experience in React and C# to join a well-established software company developing browser-based solutions. This is an excellent opportunity for a high-calibre engineer to work on modern web technologies, contributing to exciting multi-tier web applications. You will be joining a collaborative team offering strong mentorship, career progression, and the chance to work on impactful projects.

Location: Leicester - Hybrid – minimum 2 days per week in office

Salary: £30,000 – £45,000 per annum + benefits (dependent on experience)

Requirements for React C# Software Engineer / Developer

• Commercial software development experience (ideally 2+ years)
• Experience designing, developing, deploying, and supporting web clients using Classic ASP and JavaScript
• Strong experience with modern web frameworks, specifically React and Redux
• Experience in JavaScript development – both client-side scripting and server-side ASP
• Experience working with automated testing tools (e.g., QUnit for JavaScript or similar)
• Experience in multi-tier web application development
• Experience designing for accessibility standards
• Experience using SQL Server for database interactions
• Strong problem-solving skills and a proactive approach to learning
• Excellent communication and team collaboration skills

Responsibilities for React C# Software Engineer / Developer

• Design, develop, deploy, and support robust web-based applications
• Work on both front-end (React, JavaScript) and back-end (ASP, C#) development
• Collaborate with cross-functional teams including QA, Product Management, and UX/UI
• Contribute to the development of multi-tier web applications
• Ensure applications meet accessibility standards and best practices
• Write and maintain automated tests to ensure code quality and reliability
• Perform database interactions using SQL Server
• Support existing systems while contributing to the design of new solutions
• Participate in code reviews and knowledge sharing within the team

What the role offers

• A collaborative and supportive working environment
• Hybrid working model — flexible balance between office and remote work (minimum 2 days per week in office)
• Excellent training and mentorship from experienced engineers
• Competitive salary and benefits package
• Opportunities for career growth and progression within a stable, growing company

Applications for React C# Software Engineer / Developer

If you would like to apply for this unique opportunity, please send an up-to-date CV via the relevant link.

We’re committed to creating an inclusive and accessible recruitment process. If you require reasonable adjustments for your application or during the review process, please highlight this by separately emailing (if this email address has been removed by the job-board, full contact details are readily available on our website).

Keywords:

React Developer / C# Developer / Software Engineer / Web Developer / Front-End Developer / Full Stack Developer / ASP Developer / JavaScript Developer / SQL Server / Redux / QUnit / Multi-Tier Applications / Browser-Based Solutions / Hybrid Working / Cambridge / Permanent Right to Work / Accessibility Design / Web Software Engineer / Classic ASP

We are looking for a passionate and skilled Software Developer to join our growing development team. You will be responsible for designing, developing, and maintaining high-quality software applications, ensuring optimal performance, reliability, and scalability. As a part of the development team, you will collaborate with cross-functional teams to create software solutions that meet business needs.

• Software Development : Write clean, efficient, and well-documented code for new features, updates, and bug fixes.
• System Design : Participate in the design and architecture of software applications and systems.
• Collaboration : Work closely with product managers, UX/UI designers, and QA engineers to deliver high-quality software.
• Testing : Write and maintain unit tests, perform debugging and troubleshooting to ensure software stability and performance.
• Version Control : Use version control tools like Git to manage codebase and collaborate with other developers.
• Continuous Improvement : Stay up-to-date with new technologies, programming languages, and best practices to constantly improve development processes.
• Code Reviews : Perform peer reviews of code to ensure best practices and maintain code quality standards.
• Documentation : Document the software development process, code changes, and other technical processes for future reference.

IT Services

Full time, fixed term for 2 years

Loughborough University is looking for aSoftware Developer to join our Student Information Systems team, for a fixed-term period of 2 years , from around October 2025, to develop, integrate and support our Student Information Systems.

You will possess strong technical skills, preferably in Oracle technologies, with the ability to analyse, interpret, integrate, build and support IT solutions.

In this role, you will be supporting the university’s Student Information Systems and integrations, across in-house developed software and commercially acquired software solutions. This will take the form of a range of support, service improvements and project tasks. This will require a close working relationship with end-users and business representatives from across the university.

For more information about the role refer to the Job Description and Person Specification.

About us

Come and join IT Services at a UK top 10 university. We are at the forefront of supporting the digital campus, protecting and securing our IT systems and developing strategies to take us forward in a rapidly evolving world. Whatever stage you are at in your career, Loughborough University provides a vibrant and dynamic experience. The atmosphere on campus is friendly and relaxed and offers fantastic facilities for staff to use.

As a member of IT Services, you can expect:

• Support in developing your career, allowing you to progress towards your goals in a friendly environment.
• Mentoring and development opportunities including exposure to a wide breadth of technologies.
• To work closely with all our partners from across the University to support digital transformation and deliver outstanding levels of service that are recognised as the best in the country by our students in the National Student Survey.
• A supportive dynamic working policy with flexible home/hybrid working where possible.
• A superb 440-acre green site in the heart of Leicestershire with first-rate facilities, plenty of open space, gardens, and sports areas.
• A great salary and benefits package, generous holiday allowance and pension scheme.

IT Services is largely based in Holywell Park, a beautiful area of our green campus with a large car park, good public transport links, next to Burleigh Woods. Loughborough IT came top in the National Student Survey for IT resources & facilities in supporting learning for 2021 & 2022.

We have a very supportive culture and understanding of work/life balance, with hybrid working available. Please note this role does require some attendance at the Loughborough University, Loughborough Campus and can therefore not be offered as a 100% remote working arrangement. Staff particularly enjoy the flexibility available and the opportunity to contribute to interesting University wide projects. Colleagues have a wide variety of backgrounds from different areas, bringing a broad range of experiences.

Training is encouraged via secondment opportunities, lots of internal courses run by Organisational Development, job shadowing, as well as online learning and external providers. Departmental lunches allow us to get together to meet all colleagues in person on a regular basis, in an informal setting.

Diversity of experience, thought and perspective enriches our university and the lives of its community. It is crucial to our ongoing development as an international institution. We strive to create a culture that supports equality and celebrates diversity throughout the campus, and we are actively seeking to make our team more diverse.

Application closing date: Wednesday 20th August 2025

Interview date: Wednesday 10th September 2025

Applications for job-share, part-time and flexible working arrangements are welcomed and will be considered in line with business needs.

Whatever area of IT you work in, if you’e looking to make things happen then we e looking for you.

For an informal discussion about this role please contact Andy Tatler (Dev/Ops Manager – Software Engineer), by email at or telephone 01509 226164.

Software Developer - C#

Software Developer required by a leading Cloud Technology company based in Bracknell. The company are working on cutting-edge technology including AI and propensity modelling. This is a brand-new position due to growth and will join a well-established, high calibre development team.

The company operate on a hybrid model which involves 3 days in the office and 2 days from home.

Essential experience:

• Degree in Computer Science or other STEM subject ideally from a Russell Group University
• 3+ years' experience in a software development role
• C#
• SQL Server
• Source control, ideally Git
• Experience working within an Agile environment

Any experience in the following would be advantageous:

• .NET 5/6
• JavaScript, TypeScript and frameworks such as React.js
• Docker, Kubernetes
• NoSQL

This is an exciting opportunity to join a rapidly expanding company using the latest tools and technologies. If you are looking for a role of this nature, please contact (url removed) or call (phone number removed).

Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.

SC Cleared Software Developer - 6 months+- (Apply online only)pd Outside IR35- Remote

Looking for pro-active, capable software developers needed for ongoing application management, development and support of portfolio of applications. This portfolio includes digital services as well as web content management systems.

• Engagement will provide mix of support, maintenance and development services.
• Experience of establishing and progressing software engineering disciplines including change assessments, code reviews and high quality documentation.
• Key attributes of individual include strong teamwork and collaboration.
• Professional nature for engaging build ongoing relationship with the client.

Key skillsets (ideally specialist in one/several of the following):

• PHP, Wordpress, (bitnami AMIs)
• Node.js,
• Django, Python and WagTail.

General skillsets:

• Github, Jira,
• AWS,
• AWS Cloudformation and/or terraform

SC Cleared Software Developer - 6 months+- (Apply online only)pd Outside IR35- Remote

Damia Group Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept our Data Protection Policy which can be found on our website.

Please note that no terminology in this advert is intended to discriminate on the grounds of a person's gender, marital status, race, religion, colour, age, disability or sexual orientation. Every candidate will be assessed only in accordance with their merits, qualifications and ability to perform the duties of the job.

Damia Group is acting as an Employment Business in relation to this vacancy and in accordance to Conduct Regulations 2003.

Software Developer (.NET/React)
Manchester (Hybrid - 1 day in office per 2 weeks)
45,000 + 60,000 + Extensive Training + Progression + Healthcare + Pension

An excellent opportunity awaits a developer with strong full stack, database and cloud infrastructure experience to join a product led technology organisation in a role offering, technical variety, strong involvement in product direction and extensive training and development.

This company is an established business developing cutting-edge software and technology that supports environmental decision-making and processes.

In this role, you'll join a cross-functional development team building products and tools for environmental decision making, working across the full stack with .NET and react. You'll manage infrastructure and deployment pipelines, use automation tools, and work with DevOps and cloud technologies. You will join an autonomous team that values enthusiasm, proactiveness, and training and development. This role is hybrid, with one day per fortnight in the office.

The ideal candidate will have strong hands-on experience with .NET and React/TypeScript or other modern front-end frameworks, along with solid experience in cloud infrastructure and DevOps (AWS/Azure) and automation. The right person will be proactive, keen to develop and join a cross functional development team.

This is a fantastic opportunity for a proactive strong hands-on developer looking to join a leading tech focused business in a role offering great technical variety, ownership and extensive training and development opportunities.

The Role:
*Full-stack development using .NET and React
*Manage infrastructure, deployment pipelines, automation, and cloud technologies
*Work in a cross-functional, autonomous team
*Hybrid working with one day in the office every two weeks

The Person:
*Strong full stack experience with .NET and modern front end frameworks
*Solid cloud infrastructure and DevOps knowledge (AWS/Azure)
*Proactive, enthusiastic, and ready to take ownership from day one
*Full UK Right to work

Reference Number: BBBH (phone number removed)

To apply for this role or to be considered for further roles, please click "Apply Now" or contact Marcel Cerek at Rise Technical Recruitment.

Rise Technical Recruitment Ltd acts as an employment agency for permanent roles and an employment business for temporary roles.

The salary advertised is the bracket available for this position. The actual salary paid will be dependent on your level of experience, qualifications and skill set. We are an equal opportunities employer and welcome applications from all suitable candidates.

Software Developer – Contract – Fully Remote

VIQU have partnered with a leading public sector organisation to recruit a .NET / C# Software Developer for a short-term contract.

The Role:

This Software Developer role will see the successful developer support the ongoing development, customisation, and maintenance of internal web applications and solutions.

You will work on .NET web development, alongside Microsoft Power Apps. Your work will focus on pro-code development of web applications, as well as customisations for Power Apps.

Key Skills & Experience:

• Solid commercial experience as a Software Developer, developing web applications using .NET and C#
• Proficiency building and customising Model-Driven Apps and Canvas Apps (Power Apps experience).
• Strong working knowledge of SQL and Microsoft Dataverse
• Experience developing and consuming REST APIs, including the Dataverse Web API and Microsoft Graph API
• Proven experience writing Windows scripts (e.g. PowerShell, batch scripting)
• Agile (SCRUM)
• Azure DevOps
• Strong communication skills and a collaborative mindset

Contract Overview

• Role: Software Developer
• Length: 5-month contract
• IR35: Inside IR35
• Rate: £330 per day
• Location: Fully Remote  

Apply now to speak with VIQU IT in confidence. Or reach out to Suzie Stone via the VIQU IT website.

Do you know someone great? We’ll thank you with up to £1,000 if your referral is successful (terms apply).

For more exciting roles and opportunities like this, please follow us on LinkedIn @VIQU IT Recruitment.

Security Cleared Software Developer - Hybrid - INSIDE IR35 -

Software Developer required ideally with Security Clearance to support the development of an in-house platform as part of its digital transformation journey. The successful candidate will work within a small, agile team to build and enhance applications using Microsoft Power Platform technologies.
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Key Responsibilities:

• Develop and maintain Canvas and Power Apps applications.
• Collaborate with stakeholders to gather requirements and translate them into technical solutions.
• Participate in Agile ceremonies and contribute to iterative delivery.
• Ensure solutions align with GDS (Government Digital Service) standards.
• Support the integration of applications with existing systems and data sources.
• Maintain documentation and contribute to knowledge sharing within the team.

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Essential Skills & Experience:

• Proven experience in developing Canvas and Power Apps.
• Strong coding skills within the Microsoft Power Platform ecosystem.
• Familiarity with Agile methodologies and GDS delivery approaches.
• Ability to work independently and collaboratively in a remote team environment.
• Excellent communication and problem-solving skills.

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Desirable Skills:

• Experience with Power Automate, Dataverse, and other Microsoft 365 tools.
• Understanding of secure coding practices and data protection principles.
• Previous experience in public sector or government proje

Damia Group Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept our Data Protection Policy which can be found on our website.

Please note that no terminology in this advert is intended to discriminate on the grounds of a person's gender, marital status, race, religion, colour, age, disability or sexual orientation. Every candidate will be assessed only in accordance with their merits, qualifications and ability to perform the duties of the job.

Damia Group is acting as an Employment Business in relation to this vacancy and in accordance to Conduct Regulations 2003.