Principal Software Engineer jobs in Wales

About The Role Deadline for applications: 11:59pm on 31st October 2025 Applying for this role is straight forward Scroll down and click on Apply to be considered for this position. Were looking for a Principal Software Engineer to shape the technical direction of high-profile projects and lead the delivery of modern, scalable software. xujxxms We use technology to create impactful,...

You will be both the hands-on technical lead and the architect of our future technology direction, guiding our software team while setting the foundations for a scalable product and engineering organisation. Working closely with our valuation specialists and product team, you will design solutions that fundamentally transform how valuation advisory services are delivered.

Principal Software Engineer .NET £90,000-£110,000 Remote (UK) Do you thrive on building scalable solutions that power commerce worldwide? We're partnering with a rapidly expanding global payment platform fresh off a transformative acquisition. They're engineering a robust, merchant-centric ecosystem built on quality, resilience, and scale - and they need exceptional .NET Software Engineers to...

We are looking for a highly skilled Principal Software Developer responsible for driving technical direction and delivering complex software solutions. This role requires defining architecture roadmaps, evaluating emerging technologies, and mentoring junior team members. Core tasks include transforming high-level business requirements into scalable technical designs and ensuring architectural...

We are looking for a highly skilled Principal Software Developer responsible for driving technical direction and delivering complex software solutions. This role requires defining architecture roadmaps, evaluating emerging technologies, and mentoring junior team members. Core tasks include transforming high-level business requirements into scalable technical designs and ensuring architectural...

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...

Job Description Job Title – Principal / Associate Structural Engineer Salary – £50,000 to £60,000 dependant on experience Location – Cardiff Due to strategic expansion our client has an immediate vacancy in their Cardiff office for an experienced Principal or Associate Structural Engineer with an ambition to oversee the technical delivery of a portfolio of projects allocated to them. In...

Job Description Manufacturing Systems Software Engineer (OT / Smart Factory) Wrexham MonThurs 08:00 17:15 | Fri 08:00 16:15 £35,000 £40,000 Permanent A leading manufacturing and automation company in Wrexham is looking for a Manufacturing Systems Software Engineer to join their automation team. The business designs and builds advanced production lines and uses robotics, automation and smart...

Principal Machine Learning Engineer – Production Systems Overview SoftInWay UK Ltd. Is seeking a highly experienced ML Systems Architect to design and implement a scalable, production-grade architecture for our machine learning solver. This role bridges research prototypes and commercial deployment, ensuring reliability, maintainability, and performance in a mixed technology...

You will report directly to the Senior Civil Engineer and your role xujxxms will be to provide superior quality Engineering Design services to allow t...

You will be working as a Principal Systems Engineer within our close-knit multi-function radar team of inter-disciplinary engineers, evolving our radar portfolio of existing and brand-new radar products to address emerging and future threats. Join us and help shape the future of Radar technology!

You will lead teams that use Systems thinking to analyse, assess and develop ways to mitigate safety, environmental and cyber threats across Aerospace, Defence, Security and Technology markets.

You will have the opportunity to work for leading global consultancy who work across a wide variety of projects with a top reputation for their design and engineering expertise.

You will be instrumental in growing the electrical design capability within an engineering consultancy that champions innovative, low-carbon building services. This is an opportunity to shape electrical strategy, influence design outcomes and mentor the next generation of engineers while working across exciting and varied projects.

Principal Mechanical Engineer, London. Excellent opportunity for an experienced Principal Mechanical Engineer to play a key part in the growth of an expanding M&E team within an International Engineering and Design Consultancy. Location: London Salary: £50,000 - 70,000 + Package benefits Job Description: The Resolute Group is working in partnership with an International Engineering and...

Principal Mechanical Engineer, London. Excellent opportunity for an experienced Principal Mechanical Engineer to play a key part in the growth of an expanding M&E team within an International Engineering and Design Consultancy. Location: London Salary: £50,000 - 70,000 + Package benefits Job Description: The Resolute Group is working in partnership with an International Engineering and...

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 will be both the hands-on technical lead and the architect of our future technology direction, guiding our software team while setting the foundations for a scalable product and engineering organisation. Working closely with our valuation specialists and product team, you will design solutions that fundamentally transform how valuation advisory services are delivered.

Principal Software Engineer .NET £90,000-£110,000 Remote (UK) Do you thrive on building scalable solutions that power commerce worldwide? We're partnering with a rapidly expanding global payment platform fresh off a transformative acquisition. They're engineering a robust, merchant-centric ecosystem built on quality, resilience, and scale - and they need exceptional .NET Software Engineers to...

Job Title – Principal / Associate Structural Engineer Salary – £50,000 to £60,000 dependant on experience Location – Cardiff Due to strategic expansion our client has an immediate vacancy in their Cardiff office for an experienced Principal or Associate Structural Engineer with an ambition to oversee the technical delivery of a portfolio of projects allocated to them. In doing so the...

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.