principal .net engineer jobs in York

Principal Software Engineer .NET £90,000-£100,000 Remote (UK) Are you passionate about writing clean, scalable code and ready to shape a platform used by merchants across the globe? We're working with a fast-growing global payment processing platform that’s scaling rapidly after a major acquisition. They are building a high-performance, merchant-first ecosystem that prioritises quality,...

Senior .NET Engineer Are you a talented .NET Developer looking to take on a brand new challenge? Do you want to be part of a newly formed team of software engineers in a growing product-focused company, shaping the direction of their technical solutions from the ground up? My client is seeking a Senior .NET Engineer to join their innovative product team. This is a unique opportunity to work on...

Senior Software Engineer .Net 📍 Location: UK remote | We are working with a high-growth global fintech, renowned for delivering world-class payments-related software and technology. This company is building the next generation of capabilities that power a merchant-first ecosystem. They believe that focused, empowered teams can achieve great things. You’ll be joining a curious, driven, and...

Job Title: .Net Software Engineer Location: UK based Remote with monthly site visits Salary: £32,000 - £38,000 (National) and £38,000 - £43,000 (London) per annum + exceptional pension Why Apply? This is a fantastic opportunity for a talented Software Engineer looking to develop their career within a forward-thinking, tech-for-good organisation. Working with modern technologies such as .NET,...

Job Title: Front Office Software Engineer (C# .NET) Employment Type: Full-time Location: Central London (Hybrid - 3 days onsite per week) Compensation Package: Competitive salary, 20-30% bonus, private medical and dental (family coverage included), 10% employer pension contribution, group life insurance, income protection, and additional benefits About the Company A global leader in energy...

Software Engineer (.Net) SC Cleared Permanent Location: Fully remote / WFH (UK residency only) Salary: £50,000 - £55,000 (+ on-call £5K + a comprehensive range of Employee Benefits) Essential Skills: C#.Net, MVC, ASP.Net, SC Clearance We are looking to recruit an SC Cleared Software Engineer to a leading technology consultancy. This is a home based role with limited travel for team...

You should have at least a few years of experience building real things.

You should be comfortable with serverless or containerised environments, and ideally you’ve worked with Azure before.

You should be okay with ambiguity, and you should enjoy collaborating with people who care about what they’re building.

You will work closely with a large number of teams, both internal and external, with inner-sourced development our standard way of working. Ownership is one of the core engineering principles in our organisation - we write it and we own it. Engineers are expected to take responsibility for their work from discovery to production, ensuring the ongoing reliability and stability of our systems.

Principal Software Engineer Cloud Engineering Scale-up c£100k North Scout are partnered with a fast-growing cloud engineering business that’s doubled revenues, expanded its technical team, and earned a strong reputation for delivering complex cloud programmes with pace and precision. They’re looking for a Principal Software Engineer to take a leading role across architecture, design and...

We're partnering with a scaling infrastructure company that's fundamentally transforming how digital and physical components interact in the age of AI. Their core mission is to empower teams to build and deploy sophisticated systems by providing scalable, secure, and robust infrastructure solutions for development, deployment, and scaling. Essential experience is being a Go expert and experience...

Principal Engineer Location: Manchester (1 day per month) Type: Permanent Salary: Up to £110,000 About the Role We’re working with an AI start-up that’s building innovative products, combining technology, automation, and intelligent systems to simplify complex processes. They’re looking for a Principal Engineer with strong Python skills and experience delivering modern, cloud-based...

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...

Principal Design Engineer - Employer: Leading Global Engineering & Technology Company - Contract Type: Permanent - Salary: £85,000 + bonus - Location: Remote working in the UK About the Role A global leader in smart infrastructure solutions is seeking a Principal Protection Engineer to join its Digital Grid division. The company has secured a position on the National Grid 5-Year Light Current...

You will translate big ideas into shippable, high quality products by collaborating closely with engineers and designers to solve complex challenges.

You will bring over 7 years of software engineering experience with deep expertise in JavaScript, TypeScript, and React.

You will benefit from team retreats and a professional growth budget to support your development.

About the role: This is an exciting opportunity for a forward-thinking and innovative cloud engineering lead to join ROCK. The Principal Cloud & AI Engineer is a highly technical, hands-on role that provides both deep engineering expertise and architectural guidance as we embark on scaling our AWS and Azure services portfolio. The role requires leadership qualities to be able to coordinate and...

Principal Electrical Engineer Location: Remote, UK Wide Salary: up to £85,000 (based on experience) Position: Permanent My client is an international engineering firm with teams and projects across the UK and Europe. They supply HV control & protection products alongside, electrical design, HV engineering and installation services to the leading electricity TSOs and DNOs across the UK. As a...

About the company A rapidly growing SaaS business is seeking to expand its engineering team. They serve enterprise customers at scale and are building features that matter to millions of users worldwide. You’ll be joining a company where innovation, growth and doing things differently are strongly encouraged. The role As a Principal Full Stack Engineer, you will be instrumental in shaping the...

You will help shape and grow a product with AI at its core, using agents to power an AI assistant advertising planners throughout their workflow. You’ll lead a cross-functional team of 8–10 remote engineers and data scientists, distributed across multiple countries in Europe, with a significant presence in Poland and Ukraine.

Up to £90,000 Remote, UK & Ireland No Sponsorship Opportunities We’re hiring for our client, a fast-growing global payment processing platform that’s scaling rapidly after a major acquisition. They’re on the lookout for talented .NET Software Engineers to join their journey of building the next generation of API-driven, merchant-first technology. Why join them? They believe empowered teams...

You will work within an enablement team whose mission is to help engineering teams deliver software faster, safer, and more reliably. The role blends technical depth with leadership: we need people who can think strategically, challenge the status quo, and guide the evolution of our on-premises private cloud platform.