Principal Software Engineer jobs in Newcastle upon Tyne

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 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 joining a community that focuses on learning and development through regular lunch and learn sessions, investment in accredited professional courses or educational programmes.

You will be able to make an impact both internally and with clients and receive suitable recognition.

Our client is a well-established business who have developed a reputation for providing excellent quality mechanical and electrical building services design, positioning themselves as preferred design consultants for a host of prestigious clients across a range of sectors. To kickstart 2026 they are introducing Data Centre work and they are looking for a Senior/ Principal/ Associate/ AD...

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.

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 be an integral member of the Water Engineering team and work independently and within a team environment to design and deliver technical solutions for various types of facilities and capital projects. This role will support the engineering and design delivery on a wide range of projects primarily producing and/or checking detailed EICA engineering deliverables.

Principal Grafana Network Analytics Engineer Edinburgh, UK | Fully Remote (UK-based) Engineering | Cyber Security £95,000 & Benefits Ever wanted your dashboards to actually defend the internet? This role does exactly that. I'm recruiting on behalf of a high-growth cyber security technology company that protects some of the world's most critical online services from large-scale DDoS and...

Embedded Software Engineer Newcastle upon Tyne £45,000 – £65,000 + Benefits KO2 are proud to be partnering with an innovative client in Newcastle upon Tyne, as they continue to expand their engineering team through 2025. This is an exciting opportunity for an Embedded Software Engineer to work on the development of cutting-edge products across multiple industries. The Role As an Embedded...

Job Description Embedded Software Engineer Newcastle upon Tyne £45,000 – £65,000 + Benefits KO2 are proud to be partnering with an innovative client in Newcastle upon Tyne, as they continue to expand their engineering team through 2025. This is an exciting opportunity for an Embedded Software Engineer to work on the development of cutting-edge products across multiple industries. The...

You will be a strong match if you bring:

Backend Software Engineer / Developer (C# .Net Core) *Newcastle onsite* to £130k+ Are you a backend focussed Software Engineer with a first class education looking for an opportunity to progress your career, working on complex and interesting systems in an impactful role? You could be joining a FinTech scale-up that has secure backing, an established Hedge Fund client as a partner and ambitious...

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.

At Orange Logic, we've been solving complex content challenges for over two decades—driven by innovation, curiosity, and a passion for impact, our intelligent Digital Asset Management (DAM) system, Orange Logic Platform, empowers organizations across industries to manage, access, and leverage their digital assets more effectively. We're not just building powerful software—we're building a team of...

Role Overview We are seeking a Java Software Engineer to join a small, technically rigorous founding team building complex, data-intensive engineering systems. The role is remote-first, with periodic in-person collaboration in Oxford or San Francisco. The position involves close collaboration with the Founding Engineer on backend infrastructure, internal platforms, and system architecture. In...

You will design and deploy robust frontend client, backend services, infrastructure automation, and cloud-native solutions by utilising your software development knowledge and your DevOps proficiency across AWS and GCP.

Job Description Senior Real-Time Software Engineer Hybrid, Newcastle We’re hiring on behalf of a leading engineering organisation working at the cutting edge of defence technology. This newly created role sits within a multi-disciplinary R&D team solving complex, real-world problems through robotics, automation and intelligent systems. If you’re a software engineer who wants to see your code...

SOFTWARE ENGINEER REMOTE (OPTION TO RELLOCATE) £110K + EQUITY THE COMPANY This innovative AI startup is redefining safety and reliability in AI models. While competitors like GPT and DeepMind struggle with hallucinations and illegal content generation, this company adds safety control layers to ensure AI outputs are trustworthy and compliant. Working with high-profile, they're building AI...

You will be joining our expanding Buildings Technology Services team, as a Smart Building technical specialist, with accountability for the Smart Building design, project management and delivery of projects from inception through to handover to the client. - At WSP our Building Technology Systems (BTS) team provide Smart, ICT, Audio Visual & System Integration design.

Job Description Role: Robotics Software Engineer Location: Newcastle (Hybrid Working Available) Salary: £40,000 – £60,000 + Bonus + Excellent Benefits Shape the Future of Robotics – Join a Leading Innovation Team in Newcastle! KO2 Recruitment is proud to partner with a world-class robotics company designing and developing advanced robotic systems used across global industries. Due to...