.NET Developer jobs in Newcastle upon Tyne

Senior C# Developer / Backend Software Engineer (C# .Net Core) *Newcastle onsite* to £130k+ Are you a backend focused C# Developer with a strong academic background, looking to take the next step in your career? This is an opportunity to work on complex, high-impact systems at a growing FinTech scale-up with solid financial backing, a major Hedge Fund partnership, and ambitious plans for...

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.

You will receive industry recognized training in all aspects of: . NET 9, Azure, Angular 19, Solid, DRY, LINQ, multithreading, Microservices, RESTful, Web API 2, JavaScript, HTML5, Agile and MongoDB. Our client offers a structured career progression programme. It is common place for developers within their firm to receive their first promotion (and pay rise!

Quantitative Developer (C# .Net SQL Maths) Newcastle onsite to £150k+ Are you a mathematically minded Quantitative Developer with a first class education and strong programming skills? You could be progressing your career, working on complex and interesting systems at a FinTech start-up, they have secure backing and an established Hedge Fund client as a partner. As a Quantitative Developer...

Pearson Carter are currently working with a fast-growing software house based in the North East, known for delivering high-quality, client-focused solutions across a range of industries. They are looking for a .Net Developer who can wear multiple hats and work directly with clients, giving you the chance to see the real impact of your work. If you’re ready to take the next step in your tech...

You will be comfortable selling packaged solutions across custom software, data platforms, analytics/AI and integrations. Key Responsibilities - Over 3+ years in B2B consultative sales in the UK, with a strong emphasis on solution/project-led selling rather than pure licence or commodity resale.

You will also proactively share expertise on technical solutions and business processes within your area of responsibility. You’ll be joining a team of highly capable engineers who really care about what they do and thrive on collaboration and working as an Agile team to achieve amazing solutions to everyday business needs.

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...

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 product—Spark...

You will work with clients, colleagues and collaborators in a professional, competent and friendly manner and deliver work within and adhering to Biodiverse Consulting's framework of policies and procedures. Personal Specification for this Senior Ecologist Role.

Your newpany An established environmental consultancy is seeking a motivated and experienced Principal Consultant to lead nature-positive solutions for a diverse portfolio of national clients. The organisation specialises in enhancing biodiversity and delivering Environmental Net Gain (ENG) strategies across sectors including development, infrastructure, retail, and non-profits. Your new...

You will leverage your expertise in C#, XML/XSLT, JSON, and modern data‐integration patterns to deliver robust, scalable solutions that connect e‐commerce, CRM, accounting, and other business systems for our customers. Key Responsibilities:

You will collaborate with colleagues across HR, Operations, and the wider L&D function to implement targeted learning initiatives, support leadership and talent development, and foster a culture of continuous learning. What will you deliver? Manage the allocated resource within Learning and Development Coordination team, ensuring effective and efficient use of the resources available.

Senior C# Developer / Backend Software Engineer (C# .Net Core) *Newcastle onsite* to £130k+ Are you a backend focused C# Developer with a strong academic background, looking to take the next step in your career? This is an opportunity to work on complex, high-impact systems at a growing FinTech scale-up with solid financial backing, a major Hedge Fund partnership, and ambitious plans for...

.NET Developer, C#, .NET 9, Angular 19, Web API 2 – Newcastle (Tech stack: .NET Developer, .NET 9, C#, Web API 2, Entity Framework, Microservices, Azure, Programmer, Full Stack Engineer, Architect, .NET Developer) Have you ever thought about getting from London to Edinburgh in 30 minutes? My client, a world leader in aerospace technology, and has decided to undertake research into a subsonic...

You will focus on the design, evolution, and delivery of Environmental Net Gain services that meet clients' needs and stakeholder requirements.

You will have demonstrable knowledge of the principal pillars of environmental net gain including biodiversity, carbon, water, air, people and place and demonstrable project delivery experience across these themes in a commercial consultancy setting.

You will also proactively share expertise on technical solutions and business processes within your area of responsibility. You’ll be joining a team of highly capable engineers who really care about what they do and thrive on collaboration and working as an Agile team to achieve amazing solutions to everyday business needs.

Senior Software Engineer / Back End Developer (C# .Net Core) *Newcastle onsite* to £130k+ Are you a back end focused Software Engineer with a strong academic background, looking to take the next step in your career? This is an opportunity to work on complex, high-impact systems at a growing FinTech scale-up with solid financial backing, a major Hedge Fund partnership, and ambitious plans for...

Software Developer / Engineer *Newcastle onsite* to £70k+ Are you a bright, ambitious Software Developer looking for an opportunity to progress your career, working on complex and interesting systems in a role where you can learn and develop your skills? You could be joining a FinTech start-up, they have secure backing and an established Hedge Fund client as a partner. As a Software Developer...