principal .net engineer jobs in Hemel Hempstead

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...

You will be responsible for the technical delivery of multiple projects, preparing outline and detailed xujxxms designs, calculations, reports, and drawings, while mentoring junior engineers and coordinating ...

You will define technical strategy, design scalable data systems, mentor senior engineers, and partner closely with product, engineering, analytics, and business leaders to transform strategic goals into robust, data-driven solutions.

Join OCI’s Edge Security team as a Principal Engineer to architect and deliver cloud-scale DDoS protection. You’ll lead design for high-performance detection and mitigation systems, drive automation and operational excellence, and set the technical direction for customer-facing DDoS capabilities across OCI’s global edge. This role requires deep expertise in Linux networking data path and...

You should also expect to work across the full stack and every stage of the product lifecycle, from system design through to build, test, deployment and supporting systems in production, so you should be skilled in practices like TDD, CI/CD, IaC and Observability.

You will be a vital part of this evolution, contributing your expertise to our strategy and helping us redefine what services we offer our clients.

You will ensure buildings are designed to minimise fire risks, through contributing to the development of fire strategy reports, calculations and fire risk assessments.

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...

About Intellias Intellias is a European-founded AI, Data and Software Development company with global delivery capability across Europe, India and Latin America. For more than 20 years, we've empowered our customers to embrace innovation at scale and contributed to the success of the world's leading brands. The company is featured in the Inc 5,000 Europe and IAOP Global Outsourcing...

Principal Design Engineer Greater London | Civil Engineering Main Contractor The Role A leading civil engineering main contractor is seeking a Principal Design Engineer to join their team in Greater London. This is a senior technical role, offering the opportunity to lead the design function on major infrastructure projects, provide strategic input, and ensure engineering excellence across...

You will receive expert training on the latest technologies including: . NET 9, JavaScript, React, Angular 19, Microservices, MongoDB, Vue. js, TypeScript, Azure, AWS, Web API 2, Entity Framework, Node. js, Elasticsearch, Agile, TDD, BDD, Scrum, Kanban and MongoDB. All positions come with the following benefits:

You will receive expert training on the latest technologies including: .

Job Description C# Developer / Full Stack Engineer (.Net Core JavaScript) St Albans / WFH to £100k Do you have expertise with C# .Net backend development combined with JavaScript skills? You could be progressing your career in a senior hands-on role at a technology driven trading company that invest in Sports betting markets with a flat structure where you will get your voice heard and can...

Job Description Senior Technical Engineering Manager / Technical Director A leading developer and operator of advanced, AI-focused data centres is expanding its technical operations function and seeking a Senior Technical Engineering Manager to play a key role in the leadership of its Data Centre estate. With a hyperscale-inspired, industrial-scale platform, the business provides cutting-edge,...

We’re working with a forward-thinking digital product organisation on a mission to become truly AI-native — not just by adopting tools, but by transforming how software is designed, built, and delivered. They’re looking for a Senior AI Enablement Engineer to play a pivotal role in redefining modern engineering practice through AI-assisted development. This is a hands-on senior engineering role...

.NET Developer | 6 Month Contract | Up to £600 per day (Inside IR35) | SC & NPPV3 Clearances Required | Remote MERITUS are excited to be partnered with a growing Technical Consultancy delivering secure, business-critical systems and are looking for an experienced .NET Software Engineer to work with one of their secure public sector clients. This role is well suited to a .NET developer who...

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 support in reverse engineering and deep understanding of vulnerabilities, including impact analysis and automation.

You must relish the challenge of findings critical vulnerabilities in complex software binaries through automation and manual practices. Creativity is highly valued; being able to find novel vulnerabilities is essential in this role.

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.

You will also mentor colleagues, manage projects, and contribute to work winning and client engagement.

A leading engineering company in Hemel Hempstead is seeking a Principal Structural Engineer to lead the technical delivery of complex infrastructure projects. The ideal candidate will be chartered, with strong knowledge of Eurocodes and UK design codes. Responsibilities include preparing detailed designs and mentoring junior engineers while ensuring projects are delivered on time and budget. This...