A leading consulting firm in Milton Keynes is seeking a Lead Principal Consultant for a contract role in Government, Defence & Security. The ideal candidate will have expertise in C# .NET Core or C++, along with experience in AWS, Docker, and securit...Read More>>.

A technology consultancy firm in Portsmouth is seeking a Principal Software Engineer to lead the design and development of applications across various sectors, including defence and health. The ideal candidate has over 15 years of experience with exp...Read More>>.

Anaplan is the leading enterprise decision‑making platform, powering the world’s largest enterprises with its proprietary Hyperblock™ technology and cloud infrastructure. We are seeking a Sr. Principal Engineer to join our team in...Read More>>.

Salary Range: £54,000 - £70,000. Leonardo UK operates a grade-based salary framework with broad bands. The salary range shown reflects the approved grade band for this role, or a narrower hiring range published within that band, and is benchm...Read More>>.

As we continue to accelerate the transformation of our technology and services, we are placing security and compliance at the heart of our engineering and platforms. This is an opportunity to lead at the intersection of infrastructure engineeri...Read More>>.

Job DescriptionAs we continue to accelerate the transformation of our technology and services, we are placing security and compliance at the heart of our engineering and platforms. This is an opportunity to lead at the intersection of...Read More>>.

TL;DR:We're seeking exceptional senior engineers and technical leaders for our Product team to help build the future of AI software creation. You will work across our entire stack to build features that will empower the next generation o...Read More>>.

About Indicium AI Indicium AI is trusted by the world's leading enterprises to deliver AI into production at scale. We are a global AI-native consultancy with proven experience across Financial Services, Energy & Utilities, Healthcare...Read More>>.

Senior/Principal Software EngineerApplication Deadline: 30 October 2026Department: Software EngineeringEmployment Type: PermanentLocation: Cheltenham (Hybrid)Compensation:...Read More>>.

Are you a current Elekta employee? Please click here to apply through our internal career site Find Jobs - Elekta. We don’t just build technology. We build hope for everyone dealing with Cancer. Elekta is shaping the standard of care, togethe...Read More>>.

McNally Recruitment Ltd is seeking a Principal Engineer to join a large UK client in Edinburgh or London, with 6 days in the office per month and the rest remote. You will design and engineer software with customer experience at the forefront, con...Read More>>.

Palo Alto Networks is seeking a highly experienced Principal Software Engineer to join our team in a role focused on building secure, scalable backend systems. You will own features end-to-end across Python, Go, and C++, within an AWS-native SaaS...Read More>>.

Assystem is seeking a Technical Lead to drive the successful technical delivery of defence projects. Reporting to the Technical Director, you will lead multidisciplinary engineering teams, ensuring technical excellence and strong client relationsh...Read More>>.

Technical Lead ( Senior Principal Engineer)Full-timeType of contract ASSYSTEM: PermanentASSYSTEM Sector: DefenceToday, Assystem is among the top three independent nuclear e...Read More>>.

Albany Growth is partnering with a software business undergoing a major technology transformation. We are hiring a Principal Software Engineer to stay hands-on while shaping how to rebuild a large legacy product estate for a cloud-native future....Read More>>.

Simple Machines is a leading boutique technology firm seeking a Principal Software Engineer to design and deliver complex, scalable systems across backend, APIs, frontend, data pipelines, and cloud infrastructure. You’ll work with internal teams...Read More>>.

About the roleSteelEye, now merged with FundApps, provides communications, trade and order surveillance to some of the world’s largest financial institutions.As a Principal Engineer you will set technical directi...Read More>>.

We’re looking for a Principal Engineering LeadAbout BritAt Brit, we believe that the uncertainty of the future should never stand in the way of progress. That’s why we exist. To help people and businesses face the future and th...Read More>>.

Lead the design and engineering of a cloud-agnostic Identity and Authorization Platform that secures users, services, APIs, AI agents, and data across a multi-tenant SaaS platform. Unlike traditional IAM roles, this position focuses heavily...Read More>>.

Lead architecture and implementation of, Web applications Mobile APIs Microservices AI Gateway Agent runtime MCP tools Knowledge Graph Vector stores De...Read More>>.

Technify Talent in Newbury is seeking a Principal Engineer to act as technical authority for complex, real-time distributed systems. This hands-on, IC role requires staying close to code and untangling hard problems with the team.You'll own...Read More>>.

This role sits within Advisory, where multidisciplinary teams help clients address complex business and technology challenges and turn strategy into practical change. Within Google Cloud Platform Engineering, you will combine hands‑on engineerin...Read More>>.

Location: Newbury (hybrid - reactive dependent on workload)About the RoleWe're looking for a Principal Engineer to act as technical authority and right hand to our Head of Engineering. This is a hands-on, individual-contribu...Read More>>.

Job Description Summary The energy transition drives an unprecedented growth in demand for and generation of electricity. To accommodate this growth, the capacity of transmission system is projected to grow three-fold. High voltage direct...Read More>>.

Are you looking for a unique opportunity to be a part of something great? Want to join a 17,000-member team that works on the technology that powers the world around us? Looking for an atmosphere of trust, empowerment, respect, diversity, and comm...Read More>>.

Thatcham Research is seeking a Principal Engineer – Automotive Damageability to serve as the technical authority on vehicle damage risk and insurance-related assessment. You will lead development of methodologies to quantify damage performance i...Read More>>.

As Principal Engineer, you'll be responsible for defining and championing appropriate engineering practices across product development, ensuring our teams consistently deliver brilliant, commercially successful products. You'll act as a tru...Read More>>.

Tharsus is seeking an accomplished Principal Engineer to define and champion engineering practices across product development, ensuring teams deliver brilliant, commercially successful products.You’ll act as a trusted technical authority,...Read More>>.

Vertiv, a $6.8B global organization with more than 27,000 employees, designs, builds and services critical infrastructure that enables vital applications for data centers, communication networks, and commercial and industrial facilities. We suppor...Read More>>.

We are seeking a Sr. Firmware Engineer to write firmware for our Coolant Distribution Unit real-time controller platform and assist with development on other Vertiv Linux-based platform(s). The candidate should possess broad and deep knowledge in...Read More>>.

What if you could do the kind of work the world needs? At WSP, you can access our global scale, contribute to landmark projects and connect with the brightest minds in your field to do the best work of your life. You can embrace your curi...Read More>>.

Company Description Today, Assystem is among the top three independent nuclear engineering firms worldwide. With over 60 years of experience in highly regulated sectors, the group supports public and industrial stakeholders in the executi...Read More>>.

Meta is seeking a Principal Engineer for the Central Integrity team to design and deploy systems that detect and disrupt harm at a global scale. You will own the technical strategy to identify and disrupt actors and coordinated networks behind int...Read More>>.

Amey Consulting in Scotland seeks a Principal Civil Engineer to lead highways schemes within our Highways Team. You will mentor junior designers, manage design delivery, and drive safety and value across projects.The role offers hybrid work...Read More>>.

Overview As Lead Systems Analysis Engineer, you will guide electrohydraulic and electromechanical developments from concept to testing, driving technical strategy and cross-functional collaboration. You will shape verification and va...Read More>>.

Business Area: Asset Management Platform Location: London Reporting to: Client Technology Delivery Lead Job title: Principal Salesforce Engineer Who we’re looking for We are seeking a hands‑on Salesforce...Read More>>.

Cisco ThousandEyes is seeking engineering leaders to help evolve and ship scalable, reliable digital‑experience solutions. You will work with product and engineering teams to deploy features across the Cisco portfolio, leveraging AI to improve i...Read More>>.

Principal Software Engineer (AI) Department: Tech - AI and Data Engineering Employment Type: Permanent - Full Time Location: Oxford, UK Description Please note that we are open to c...Read More>>.

Senior Principal Software Engineer Location: Leatherhead, UK Do you love solving complex technical challenges and inspiring others to deliver impactful solutions? This is a great job for someone who thrives in a dynamic e...Read More>>.

Job Title Senior Principal Software Engineer Reporting To Director, Eng. Sys. Def. & Integ. Work Schedule Hybrid – Tewkesbury, GBR About Moog Aircraft Group Moog Aircraft Group is a wor...Read More>>.

Join Our Team: Principal Mechanical & Electrical Engineer, national role. Navigate your future and lock in your career as we keep our canals open and alive. Our Mechanical, Electrical, Instrumentation, Control & Automat...Read More>>.