1 to 25 of 26 .NET Jobs in Southampton

.NET Developer - Basingstoke

Hiring Organisation
Noir
Location
Southampton, UK
Employment Type
Full-time
.NET Developer – .NET 10.0, C# 14, Blazor, Azure – Basingstoke, Hampshire (Tech stack: .NET Developer, .NET 10.0, ASP.NET Core, C# 14, .NET MAUI, ML.NET, Azure AI, GitHub Copilot, Docker, Kubernetes, .NET Aspire, CI/CD, HTML Living Standard, CSS Living Standard, Programmer, Full Stack Engineer … Architect, .NET Developer) Our client is a crowd funded social advertising technology platform that sells services to Facebook advertisers to grow their marketing ROI. They were recently named one of 12 Facebook Strategic Preferred Marketing Developers (PMD); the highest distinction of excellence Facebook has ever offered their marketing partners. ...

.NET Developer

Hiring Organisation
Noir
Location
City Of Southampton, England, United Kingdom
.NET Developer - Southampton (Tech stack: .NET Developer, .NET 10.0, ASP.NET Core, C# 14, Azure SQL, .NET MAUI, GitHub Copilot, Docker, Kubernetes, Microservices architecture, Angular 21, Vue.js, TypeScript, Programmer, Full Stack Engineer, Architect, .NET Developer) We have several fantastic new roles for .NET Developer … provide their clients with an individualised, scalable asset management framework that is unrivalled in today’s market place. Our client is looking for passionate .NET Developer with experience in .NET, .NET Core, C# and Azure SQL. Our client will provide training in: .NET 10.0, ASP.NET Core ...

Principal / Associate Geospatial Developer

Hiring Organisation
Tetra Tech
Location
Southampton, Hampshire, South East, United Kingdom
Employment Type
Permanent
technologies like FME and ESRI Pipelines/Data Interoperability. Strong programming skills in Python (including ArcPy and data science libraries), with additional experience in .NET, Java or modern JavaScript libraries. Experience with Web GIS development, including React and integration with Enterprise/PostgreSQL backends. Experience with Enterprise Geodatabases, databases ...

Application Developer

Hiring Organisation
The Airedale Group
Location
Southampton, UK
Employment Type
Full-time
takes initiative Comfortable working in a small, fast-moving team where priorities can change Ideally holds previous experience with C#, ASP.NET Core, or the .NET ecosystem Experience working in Agile development teams is desirable Familiarity with Git and modern development practices would be highly beneficial The Airedale Group ...

Senior Full Stack Developer / Full Stack Developer - Insurance

Hiring Organisation
Ping Insure
Location
Southampton, UK
Employment Type
Full-time
Full Stack Developer, with at least 2 years at Senior level. Strong back-end experience with one or more of: Node.js/TypeScript .NET/C# PHP/Laravel Strong front-end experience with: React, Vue, or Angular Modern JavaScript/TypeScript API-first development (REST/JSON). ...

Senior Customer Success Engineer

Hiring Organisation
Veracode
Location
Southampton, UK
Employment Type
Full-time
Azure DevOps, GitHub, Jenkins, etc.) Experience writing scripts with Python, Postman, etc. to automate tasks via security tool APIs (REST & GraphQL) Familiarity with how .NET, Java, JavaScript programs are compiled and packaged. Hands-on experience with application security solutions (Veracode, Synopsys, Checkmarx, Snyk, etc.) and cloud security solutions ...

Software Engineer

Hiring Organisation
Cirium
Location
Southampton, England, United Kingdom
Computer Science or equivalent experience Have some Software Development experience Be proficient in development languages including but not limited to: Java, Springboot, Python, C#, .NET, C++ Have a good understanding of data modelling principles, data manipulation languages, and storage systems Be familiar with industry best practices such as code ...

Software Engineering Manager

Hiring Organisation
Airportr Technologies
Location
Southampton, UK
Employment Type
Full-time
Highly analytical, data-driven and inquisitive, constantly seeking insights and opportunities for improvement. Solid grasp of modern cloud infrastructure and our stack: MS Azure, .NET, React, Angular, Micro-services and Service-bus. Proven technical expertise in intricate, highly available and distributed systems, preferably within travel tech or regulated industries. ...

Logistics Software Engineer

Hiring Organisation
Lockheed Martin
Location
Southampton, UK
Employment Type
Full-time
Proven experience in full-stack software development, including front-end and back-end technologies. Proven experience in web app development Strong proficiency in c#, .net, javascript, html and css. Eligibility to hold or obtain UK Security Clearance. Desirable: Experience working within a defence, aerospace, or government environment. Modelling ...

.Net Full Stack Developer (SC Eligible)

Hiring Organisation
Stealth iT Consulting
Location
Southampton, UK
Employment Type
Full-time
Cloud Adoption, Digital Transformation & NextGen AI Solutions, offering a Remote first policy (plus ad hoc client site travel). They are looking for multiple .Net Full Stack Developers to join rapidly a growing team, working in a large scale GovSec and private sector digital transformation projects. We have … Docker Compose Experience integrating with relational databases (e.g., SQL Server, Postgres) A strong understanding of web standards, accessibility, and development best practices Experience with .NET Entity framework (EF Core ...

Senior Software Engineer

Hiring Organisation
OptumUK
Location
Southampton, UK
Employment Type
Full-time
role will see you working across our product suite, contributing to the design, development, and delivery of innovative software. Our tech stack includes C# (.Net Core), MySQL, HTML/CSS, JavaScript, and containerized workloads in AWS. What you'll do At Optum UK, we believe in the power … maintaining high-quality software solutions. Collaborating with product managers, designers, and clinicians to translate requirements into technical specifications. Building and maintaining C#/.Net applications using best practices and design patterns. Developing RESTful APIs for seamless integration with internal and external systems. Optimising application performance and conducting code reviews. ...

Senior Software Engineer (.Net)

Hiring Organisation
Primis
Location
Southampton, UK
Employment Type
Full-time
Senior/Principal Software Engineer .NET £85,000-£110,000 Remote (UK) Do you thrive on building scalable solutions that power commerce worldwide? We're partnering with a rapidly expanding global payment platform fresh off a transformative acquisition. They're engineering a robust, merchant-centric ecosystem built on quality … resilience, and scale - and they need exceptional .NET Software Engineers to drive this evolution. Your Impact: Design and develop mission-critical platform services, APIs, and merchant portals Drive performance optimisation and system reliability through intelligent engineering Champion engineering excellence in architecture, code quality, and delivery Partner with cross-functional ...

Data Reporting engineer (Python/.Net)

Hiring Organisation
Tenth Revolution Group
Location
Southampton, UK
Employment Type
Full-time
currently working with a consulting client looking for a contract Fullstack Data reporting engineer and Python software developer. Fullstack Data reporting engineer (Python/.Net) - Contract: Required Skillset: 5+ years Software engineering experience C# Full Stack .NET development SQL Server & SQL Server Reporting Services Python for data engineering … have Python software developer - Contract: Required Skillset: 5+ years Software engineering experience with Python as the primary backend language, with support for Java and .NET Oracle SQL PL for maintaining existing services Experience with AWS, Azure, SQL Server, Postgres, GitHub, Azure DevOps, Linux, Docker and Kubernetes Understanding of continuous ...

Full Stack Engineer

Hiring Organisation
Unilink
Location
Southampton, UK
Employment Type
Full-time
regulations, fully tested and delivered within an acceptable time frame Qualifications, Competencies & Experience Proven experience in full lifecycle software development Angular Development Experience C# & .Net core experience Understanding of Responsive Design Use of REST APIs (JSON/XML) Modern Web Technologies (Angular, TypeScript, JavaScript, CSS3, HTML5) Unit ...

C# Developer (Government)

Hiring Organisation
Stealth iT Consulting
Location
Southampton, UK
Employment Type
Full-time
C# Developer (Government) - Remote - £330.00 Per Day Inside IR35 My government client are seeking a C#/.NET Developer with proven expertise in building modern, cloud-native solutions. This is a high-impact position where you will lead the development of .NET applications using C# and the latest … frameworks (.NET 6/7/8), while shaping the technical direction of mission-critical projects. Must have Government background. Required Skills & Experience: Development of .NET applications using C#, .NET 6/7/8, and modern frameworks. Build cloud-native microservices hosted on Azure App Services ...

Winforms Developer

Hiring Organisation
Reggie & Cole
Location
Southampton, UK
features, improving stability, and ensuring smooth day-to-day operation of established systems while working closely with technical stakeholders. Skills & Experience: Strong C#/.NET development Proven WinForms experience Experience working on and maintaining legacy systems Solid understanding of object-oriented design Experience with SQL Server DevExpress experience desirable ...

Principal Software Engineer

Hiring Organisation
Harrington Starr
Location
Southampton, UK
Employment Type
Full-time
Career progression in a fast-growing international technology business. Key skills required: 10+ years' experience in enterprise architecture and software engineering. Proven expertise in .NET with strong SaaS and API platform experience. Hands-on track record designing highly scalable, high-performance systems. Strong leadership, mentoring, and stakeholder management skills. ...

Senior .NET Developer

Hiring Organisation
ITR | part of Ascent International Group
Location
Southampton, UK
Employment Type
Full-time
Senior .NET Developer (Licensing & CRM System) – Remote – Outside IR35 We're supporting an exciting greenfield project and are looking for an experienced Senior .NET Developer to join on a fully remote, outside IR35 contract starting January 2026. This is a 6-month engagement with strong potential to extend. … contributing to the development of a secure, scalable licensing and CRM platform built with modern .NET technologies, rich UI frameworks, and robust data architecture. If you enjoy shaping complex systems end-to-end, this one's for you. Contract Details Start Date: January 2026 IR35: Outside Location: Remote Contract ...

Full Stack Developer

Hiring Organisation
TalentHawk
Location
Southampton, UK
Employment Type
Full-time
technical leadership, code reviews, and mentoring for junior developers. Key Responsibilities Design, build, and deploy scalable web and mobile applications using ReactJS, React Native, .NET, and Azure Functions. Develop and maintain RESTful and GraphQL APIs, ensuring clean integration across internal and external systems. Architect secure, high-performance backend services … customer needs. Maintain clear technical documentation including design records, diagrams, and process guides. Qualifications and Experience Essential: Proven hands-on experience with C#/.NET and ReactJS (frontend and backend). Strong knowledge of cloud platforms, preferably Microsoft Azure. Experience building and integrating with REST/GraphQL APIs. Solid ...

Software Engineer

Hiring Organisation
Harvey Nash
Location
Southampton, UK
Employment Type
Full-time
Role: Developer Tech Stack: .NET, C#, AWS, MongoDB IR35 Status: Outside IR35 Day Rate: £400.00 Location: Remote Contract Length: 3 Months + Start Date: Immediate We are seeking a Developer to join the agile delivery team supporting the development of a major government digital platform. You will be responsible … features, working across both front-end and back-end elements of the system. This role is suitable for developers with a strong foundation in .NET and cloud-native engineering, and offers scope to grow technical ownership within a supportive, delivery-focused team. You'll be working in an environment ...

Senior Software Developer | Webigence and Spark Travel

Hiring Organisation
Spark Travel
Location
Southampton, UK
Employment Type
Full-time
with ability to attend occasional team meet‐ups in London (travel expenses covered). Design, build, and maintain features across the stack: .NET (C#) based API backends, Angular (TypeScript) based frontends, SQL Server, Cosmos DB. Own mission‐critical modules such as pricing engines, itinerary or form builders, client proposal … class or 2:1 degree in Computer Science or a closely related discipline. - 4+ years building modern web or data applications with .NET and at least one JavaScript framework. - Hands-on experience with Azure or another major cloud provider, plus an understanding of microservices and event-driven architectures. ...

Full Stack Engineer

Hiring Organisation
Leap29
Location
Southampton, UK
Employment Type
Full-time
Senior Full Stack Developer Fully Remote - Within UK 6 months - Inside IR35 7.5 hours a day BPSS Required before starting - SC Clearance will be started throughout the project so need to be elidable for both. ...

Lead Devops Engineer

Hiring Organisation
Tembo
Location
Southampton, UK
Employment Type
Full-time
environments. Lead infrastructure projects including cloud migrations, cost optimizations, disaster recovery planning, and security hardening. Modernize legacy systems, working across inherited Azure environments with .NET and Ruby stacks. Drive IaC adoption, particularly Terraform, across all environments. Collaborate with engineering leads to ensure CI/CD pipelines are robust, scalable … practices. Solid experience with CI/CD, observability tooling, incident response, and automated deployments. Comfort navigating and improving legacy infrastructure and multi-language environments (.NET and Ruby). A security-first mindset with experience implementing secure cloud architectures. A proactive approach to cost management and optimization. Strong communication ...

Software Engineer

Hiring Organisation
CATCHES
Location
Southampton, UK
Employment Type
Full-time
Location: Remote (UK and Europe) About: CATCHES are backed by some of the most influential names in luxury fashion globally. We blend advanced 3D rendering, AI and VFX techniques to deliver unparalleled shopping experiences for ...

.NET Developer (Kendo UI)

Hiring Organisation
ITR | part of Ascent International Group
Location
Southampton, UK
Employment Type
Full-time
.NET Developer Contract – Heavy Kendo UI Focus – Outside IR35 – £475/day I'm supporting a client with a key project, and we're looking for a .NET MVC Developer with genuinely strong experience in Telerik Kendo UI. Kendo UI is not a secondary skill for this position … Developing a new licensing platform across four interconnected modules Extensive use of Telerik Kendo UI for the front-end functionality Back-end development in .NET MVC Close collaboration with a Technical Director and Senior Lead, both of whom remain hands-on Autonomy and responsibility across the project lifecycle ...