asp .net developer jobs in Southampton

Senior Backend Developer (.NET | AI-First SaaS Platform) Compensation: Competitive, based on location and experience Location: UK or Turkey (Hybrid – Office & Remote) Keepnet is an AI-driven SaaS platform experiencing strong, sustained growth in the UK with growing global momentum, helping organisations manage human cyber risk at scale. With Agentic AI live in production, Keepnet runs...

You will join a cross-functional product engineering team working on the evolution and modernisation of a core SaaS platform. The focus is on building scalable, cloud-native services while improving reliability, performance, and long-term maintainability.

.NET Developer – Southampton (Tech stack: .NET Developer, .NET 9, C#, ASP.NET, C#, React, Angular 19, Microservices, Vue.js, TypeScript, Azure, Web API 2, Agile, Azure SQL, Programmer, Full Stack Engineer, Architect, .NET Developer) We have several fantastic new roles for .NET Developer to join an ambitious Fintech start-up. This is your chance to work with the sharpest minds in private wealth...

Business Development Manager - UK Market Entry High-Value Capital Equipment | Aesthetic Medical Technology We are supporting the UK launch of a next-generation aesthetic medical technology platform operating at the intersection of Imaging, software, and AI. Our client is looking for the UK's top performing capital aesthetic reps to join this incredible journey of growth and differentiation from...

🚀 About Webigence and Spark Travel Webigence has 25 years of experience crafting UX‑first, often highly complex software. Our engineers pair forward‑thinking agile practices with an obsession for intuitive design, shipping products that feel effortless even when the logic underneath is anything but. Alongside a handful of long‑standing third‑party clients, we’re scaling our own SaaS...

ABOUT SIMA SIMA is a high-growth next-generation impact investment manager, known for creating innovative impact investment funds with deep impact. We have to date raised over $400 million in the solar, microfinance and clean cooking sectors, with leading public and private sector impact investors, and currently are raising an additional $400 million fund. Our headquarters is in the US and we...

You will be a real people person, confident when forming new relationships, and keen to progress.

You will have sufficient experience in private client tax having worked across a broad range of issues,

You will ideally be either CTA or ACA qualified.

Are you looking for an opportunity to develop your systems administration skills in a role that will support your growth and help fulfil your ambition? Then we have just the opportunity for you! As our new Systems Engineer, youll play a key part in making sure our systems continue to work as they should. That means regression testing tools, checking the data flowing in and out, reviewing...

Job Description Job Title: Software Development Engineer Salary: Up to £75k Job Type: Full Time, Permanent Location: Fareham, Hampshire (Hybrid working available) About the Opportunity: A UK-based technology organisation in Fareham is seeking a Software Development Engineer to support the development of software used within government, defence and law-enforcement environments. This role...

Energy Sales Consultant UK Wide £35,000–£45,000 + uncapped commission & performance incentives Our client is an award-winning commercial energy and sustainability consultancy. For over two decades, they’ve helped businesses cut costs, manage usage, and transition to greener energy. From SMEs to complex multi-site organisations, they deliver smart procurement, compliance support, and...

Want to take your sales career to the next level? Look no further than memoryBlue, the fastest-growing sales development company in B2B tech. Who are we? Since 2002, memoryBlue has been a top sales development consulting firm that specializes in helping B2B high-tech companies like - Cloudera, Couchbase, Splunk, Symantec, McAfee, Box - grow revenue by providing top-tier SDR talent, proven...

Account Executive - Public Sector Hunter / Net New business role Location: UK - fully remote Salary: £80-100k + Double OTE PGS are delighted to have been retained by a leading global ECM solutions provder for the hiring of an Account Executive specifically focussing on the Public Sector in the UK. The role is fully remote with travel to clients and is a complete hunter / Net new logo...

Market Design Lead – Switching & Registration Who Are RECCo? We are an independent, non-profit organisation responsible for the Retail Energy Code — a key part of how the GB retail energy market is regulated. But we don’t just manage rules. We look ahead, not just react, helping the market change in the right way. We deliver secure digital services, clear governance, and practical solutions...

This is an exciting opportunity to manage the newest brand in Euroflorist. We are looking for an experienced E-commerce manager, who will drive the performance and strategy of our newest brand. The right candidate is data driven, a self-starter and looking to make a big impact. The goal of this commercial role is to increase Online volume and GP for one of our newest brands, ensuring a high...

Principal Software Engineer Fully Remote | Permanent | Competitive Salary + Benefits Harrington Starr has partnered with a leading Global Payments Technology company who are seeking to hire a Principal Software Engineer to join their senior engineering leadership team. This is a rare opportunity to combine hands-on development with strategic influence, guiding architecture decisions and shaping...

Account Manager – Cyber Security Solutions On behalf of a fast‑growing Cyber Security Solutions provider that helps organisations protect their digital assets and stay ahead of evolving threats, we are seeking a proactive and relationship‑driven Account Manager to nurture and grow a portfolio of mid‑market and enterprise clients. This role blends strategic account development with targeted new...

You will design and build APIs that enable products, partners and AI services to work together, including: Building RESTful APIs using C# .

You will likely bring: Strong experience building backend services in C# .

You will be responsible for developing market entry strategies, establishing key partnerships, building high-performance sales teams, and driving significant revenue growth. Your success will be directly rewarded through an unlimited commission structure. Main responsibilities

You will be a key part of the project teams going forward at this very exciting time for the company. The ideal candidate will have commercial experience developing and testing complex Angular modules and integrating them with backend services via REST APIs. Responsibilities & Duties

You will own the engineering vision and execution of Keepnet’s core platform, operating across the UK, EU, US, UAE, and Canada, supported by distributed offshore and nearshore teams.

You will not be expected to do everything yourself. Success in this role will be measured by platform reliability, delivery predictability, team health, and customer impact.