reigate, south east england, united kingdom Hybrid / WFH Options
Client Server
Principal Backend Software Engineer/Developer (C# .Net Core Azure) Reigate/WFH to £95k Are you a backend focussed .Net technologist looking for an opportunity to work on cutting edge SaaS technology? You could be progressing your career in a senior hands-on role at a global … InsurTech. As a Principal Backend Software Engineer you will take a lead role in the team responsible for their flagship SaaS insurance platform that handles 4 billion requests per month. The work is challenging and complex, you'll focus on delivering the evolution of backend services that support … of leading technical projects and promoting best practices You have excellent written and verbal communication skills What's in it for you: As a Principal Backend Software Engineer/Developer you will earn a competitive salary package including: Salary to £95k Bonus (c20%) 25 days holiday (and ability More ❯
Hampshire, South East, United Kingdom Hybrid / WFH Options
IPS Group
Role: Principal Data Engineer Type: Permanent Location: Hampshire, London (Hybrid Working) Salary: £80,000 - £90,000 + Benefits Are you an experienced Data Engineer ready to take the next step into a strategic, hands-on leadership role? This is a fantastic opportunity to join a well-established … with a UK presence that continues to grow. With significant investment in their data and technology function, theyre now looking to bring on a Principal Data Engineer to help shape and evolve their data infrastructure and engineering capability. The Opportunity: This is a pivotal role where youll lead More ❯
Ringwood, Hampshire, United Kingdom Hybrid / WFH Options
ICE Recruit
Senior/Principal Civil Engineer Location: Ringwood Salary: £50k-£60k DOE plus benefits Company Overview Our client is a leading firm of development consultants and consulting engineers offering multidisciplinary services for infrastructure and regeneration schemes. Job Opportunity They are seeking a civil engineer at senior or principal … members, requiring excellent communication skills. Qualifications Chartered status or working towards chartership is preferred. Additional Information This is an excellent career opportunity for an engineer with a strong work ethic and extensive relevant experience. The package includes an attractive salary, benefits, and the option to work from home two More ❯
Nottingham, Nottinghamshire, East Midlands, United Kingdom Hybrid / WFH Options
Rebel Recruitment
Role: Principal Software Engineer Location: Nottingham Working Arrangement: Hybrid, 3 days/week in office with flexibility around working hours Salary: Up to £90k Tech for Good Renewable Energy Are you ready to shape the future of a growing tech company in the renewable energy sector? With a … a pivotal moment to join. Theyre embarking on an ambitious journey to enhance their product suite and launch cutting-edge greenfield projects. As a Principal Software Engineer, youll join the flagship product team with the core mission of making wind energy work for the world! Were looking a … high-impact engineer who can lead architectural design for new features and drive engineering standards across the department. Youll have the autonomy to influence technical direction while collaborating with some of the best engineers in the industry. Tech Stack: C#, .NET 9 React - open to Typescript & other SPA framework More ❯
Bristol, Gloucestershire, United Kingdom Hybrid / WFH Options
ICE Recruit
Senior/Principal Civil Engineer Bristol £50k-£60k DOE plus benefits Our client is a leading firm of development consultants and consulting engineers who offer multidisciplinary services for infrastructure and regeneration schemes. They have an opportunity for a civil engineer at senior or principal level in … communication will be a strong point for you. Ideally candidates should be Chartered, or working towards. This is a great career opportunity for an engineer with a strong work ethic and CV that demonstrates extensive relevant experience. Excellent salary and benefits package is on offer, with wfh 2 days More ❯
Title : Principal Software Engineer Company : HPC R&D Location : London (Hybrid) Pay : Up to £150,000 Company : An advanced HPC R&D firm, looking to expand the UK compiler team. Most of the team are ex-Big-Tech, ex-FAANG or ex-Chip firms. They joined because they … technical leadership. If you want to work alongside some of the brightest, most enthusiastic people in the industry, this may be worth exploring. Role : Principal Software Engineer position with an emphasis on GPU compiler development in the context of AI. You will be working with Triton, but any … edge compiler development project. Significant hires have already been made in the team to support this role. About you: 6 years+ as a compiler engineer Strong C++ programming skills Experience with Triton, LLVM, MLIR or other compilers Experience with GPU architectures Full details are available. Please don't hesitate More ❯
Principal Product Security Engineer Apply locations CZ - Prague UK - London time type Full time posted on Posted 6 Days Ago job requisition id JR103958 Our Product Security team is seeking a Principal Product Security Engineer to define and lead a secure development strategy and approach in More ❯
decentralized large AI model inference and fine tuning platform. Other customers include ZKSync and Starkware. The Protocol & Innovation Team We are looking for a Principal Blockchain Engineer who will help develop core blockchain node software, blockchain infrastructure/tooling, and other low-level software for various blockchain networks … zkSync, Starkware, and Polkadot. Problem domains include cryptography, security, networking, game theory, zero knowledge, finance, political science, and programming language design. The Role The PrincipalEngineer is responsible for scoping, designing, and implementing web3 and blockchain solutions across a variety of technology stacks. They will work with the More ❯
Coventry, England, United Kingdom Hybrid / WFH Options
Anson Mccade
Principal Systems Engineer Location: Coventry Hybrid and flexible working arrangements available Salary: £51,500 - £61,500 Are you ready to make a real impact on future defence programmes? Join a dynamic team at the forefront of innovation, contributing to the foundational stages of future submarine programmes and shaping More ❯
West Midlands, United Kingdom Hybrid / WFH Options
Anson Mccade
Principal Systems Engineer Location: Coventry Hybrid and flexible working arrangements available Salary: £51,500 - £61,500 Are you ready to make a real impact on future defence programmes? Join a dynamic team at the forefront of innovation, contributing to the foundational stages of future submarine programmes and shaping More ❯
City, Edinburgh, United Kingdom Hybrid / WFH Options
CreateFuture
our employee exit rate is astonishingly low. Join us on our journey Let's create something awesome, together, today. About the role: As a PrincipalEngineer you will work closely with clients, responsible for the successful delivery of client and internal projects through building professional relationships with key … Defines and implements technical strategies, ensuring best practices in architecture, security, and quality throughout all engineering and client projects. Engineering Leadership : Acts as Lead Engineer on client projects, overseeing RFPs and BIDs while collaborating with the sales team for effective execution. Consultancy & Business Growth : Applies a growth mindset, identifies More ❯
Leeds, Yorkshire, United Kingdom Hybrid / WFH Options
CreateFuture
our employee exit rate is astonishingly low. Join us on our journey Let's create something awesome, together, today. About the role: As a PrincipalEngineer you will work closely with clients, responsible for the successful delivery of client and internal projects through building professional relationships with key … Defines and implements technical strategies, ensuring best practices in architecture, security, and quality throughout all engineering and client projects. Engineering Leadership : Acts as Lead Engineer on client projects, overseeing RFPs and BIDs while collaborating with the sales team for effective execution. Consultancy & Business Growth : Applies a growth mindset, identifies More ❯
Manchester, Lancashire, United Kingdom Hybrid / WFH Options
CreateFuture
our employee exit rate is astonishingly low. Join us on our journey Let's create something awesome, together, today. About the role: As a PrincipalEngineer you will work closely with clients, responsible for the successful delivery of client and internal projects through building professional relationships with key … Defines and implements technical strategies, ensuring best practices in architecture, security, and quality throughout all engineering and client projects. Engineering Leadership : Acts as Lead Engineer on client projects, overseeing RFPs and BIDs while collaborating with the sales team for effective execution. Consultancy & Business Growth : Applies a growth mindset, identifies More ❯
Lexington, Massachusetts, United States Hybrid / WFH Options
Raft
tech stack, and cloud-native ecosystem. We build digital solutions that impact the lives of millions of Americans. We're looking for an experienced Principal Platform Engineer to support our customers and join our passionate team of high-impact problem solvers. About the role: The Principal Platform … Engineer shall have senior software engineering experience building and operating hybrid-infrastructure developer platforms (private and commercial cloud infrastructure) at an Individual Contributor Level. A successful candidate has prior experience deploying Kubernetes in multiple ways and supporting automation of platform management at the enterprise scale. The engineer shall … have experience developing platform APIs that make common software operations scalable and repeatable. The engineer will feel comfortable maintaining the underlying services required to host containerized applications. The engineer will be at least a mid to senior-level engineer capable of mentoring junior developers and engineers. The More ❯
San Antonio, Texas, United States Hybrid / WFH Options
Raft
tech stack, and cloud-native ecosystem. We build digital solutions that impact the lives of millions of Americans. We're looking for an experienced Principal Platform Engineer to support our customers and join our passionate team of high-impact problem solvers. About the role: The Principal Platform … Engineer shall have senior software engineering experience building and operating hybrid-infrastructure developer platforms (private and commercial cloud infrastructure) at an Individual Contributor Level. A successful candidate has prior experience deploying Kubernetes in multiple ways and supporting automation of platform management at the enterprise scale. The engineer shall … have experience developing platform APIs that make common software operations scalable and repeatable. The engineer will feel comfortable maintaining the underlying services required to host containerized applications. The engineer will be at least a mid to senior-level engineer capable of mentoring junior developers and engineers. The More ❯
Cowes, Isle of Wight, United Kingdom Hybrid / WFH Options
BAE Systems (New)
Job Title: Principal Systems Engineer (Part Time or Full Time) Location: Isle of Wight - Cowes, Chelmsford - Great Baddow or Portsmouth - Broad Oak Salary: Up to £70,600 commensurate with skills and experience. Part time & accruing hours available Put yourself into a dynamic Principal Systems Engineering role at … programme, Cycle2work and employee discounts - you may also be eligible for an annual incentive. The Radar Software Team: 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 More ❯
Leeds, Yorkshire, United Kingdom Hybrid / WFH Options
WSP
world of opportunity and the chance to shape a career as unique as you. A little more about your role As a Senior/PrincipalEngineer, you will be pivotal in driving the delivery of civil and bridge engineering projects and will use your knowledge and skills to More ❯
Principal Go (Golang) Engineer | Stealth Fintech | London (Min. 4 days/week onsite in London) Up to £200k + Equity | Hybrid London Maze is partnering with a stealth-mode startup that's rebuilding core banking from the ground up. They’re creating the world’s first open-source … AI-native "Thin Ledger" —set to replace legacy infrastructure at Tier 1 banks. We're looking for a PrincipalEngineer specialising in Go to lead v1 builds, define architecture, and ship mission-critical backend systems from scratch. What you’ll do: Design & scale a fault-tolerant ledger (Golang … distributed, multi-region infra with five-nines reliability Lead backend, DevOps, and CI/CD decision-making Embed AI into engineering workflows & ops Strong engineer with system engineering & system architectural experience; exceptional communicator across technical and non-technical audiences. Self-motivated, problem-solving mindset; open to non-traditional backgrounds. More ❯
london, south east england, United Kingdom Hybrid / WFH Options
Maze
Principal Go (Golang) Engineer | Stealth Fintech | London (Min. 4 days/week onsite in London) Up to £200k + Equity | Hybrid London Maze is partnering with a stealth-mode startup that's rebuilding core banking from the ground up. They’re creating the world’s first open-source … AI-native "Thin Ledger" —set to replace legacy infrastructure at Tier 1 banks. We're looking for a PrincipalEngineer specialising in Go to lead v1 builds, define architecture, and ship mission-critical backend systems from scratch. What you’ll do: Design & scale a fault-tolerant ledger (Golang … distributed, multi-region infra with five-nines reliability Lead backend, DevOps, and CI/CD decision-making Embed AI into engineering workflows & ops Strong engineer with system engineering & system architectural experience; exceptional communicator across technical and non-technical audiences. Self-motivated, problem-solving mindset; open to non-traditional backgrounds. More ❯
Cambridge, Cambridgeshire, United Kingdom Hybrid / WFH Options
Pico Technology Limited
Principal Software Development Engineer (C++) St. Neots, Cambridge, UK Software Engineering Full Time - Permanent Key information Full time - 40 hours a week St Neots, Cambridgeshire - hybrid working optional (2-3 days a week in the office) Your role As a Principal Software Development Engineer, you will … the opportunity to lead key projects, contribute to feature design, and help shape the architectural direction of our products. Main Areas of Responsibility: The Principal Software Development Engineer will work to design and refine required features, proposing alternative solutions to improve both customer and developer experience. They will … Data Structures (Desirable) Scripting Languages - PowerShell & Bash (Desirable) Embedded Linux - Linux Device Drivers (Desirable) Experience: Proven experience in C++ software development, ideally in a principal, senior or technical lead role. Strong understanding of software architecture and design patterns; experience with agile methodologies; expertise in debugging, technical debt resolution, and More ❯
St. Neots, Cambridgeshire, United Kingdom Hybrid / WFH Options
Pico Technology Limited
Principal Software Development Engineer (C++) St. Neots, Cambridge, UK Software Engineering Full Time - Permanent Key information Full time - 40 hours a week St Neots, Cambridgeshire - hybrid working optional (2-3 days a week in the office) Your role As a Principal Software Development Engineer, you will … the opportunity to lead key projects, contribute to feature design, and help shape the architectural direction of our products. Main Areas of Responsibility: The Principal Software Development Engineer will work to design and refine required features, proposing alternative solutions to improve both customer and developer experience. They will … Data Structures (Desirable) Scripting Languages - PowerShell & Bash (Desirable) Embedded Linux - Linux Device Drivers (Desirable) Experience: Proven experience in C++ software development, ideally in a principal, senior or technical lead role. Strong understanding of software architecture and design patterns; experience with agile methodologies; expertise in debugging, technical debt resolution, and More ❯
Bournemouth, Dorset, United Kingdom Hybrid / WFH Options
The Talent Locker Ltd
Principal Test Engineer - C# SpecFlow, Selenium (Hybrid Working) Join an established team at a large, friendly organisation offering significant career progression, training, and a culture of development. If you have a background in test automation with skills in C#, SpecFlow, Selenium or NUnit, and are looking for a More ❯
York, Yorkshire, United Kingdom Hybrid / WFH Options
Randstad Cpe London
Senior/Principal Bridge Engineer Location: York/Hybrid working. Salary: Circa £40,000 - £65,000 dependant on level of experience plus package including: Annual profit related bonus Early Professional Membership paid Company pension scheme Group Life Insurance Private Health Care Range of additional company benefits Summary A … firms, transport agencies, local authorities, engineering consultants, and private clients in Glasgow, Scotland, and throughout the UK is looking to hire a Senior or Principal Level Engineer to join their Bridge Team based in York. The successful candidate will report to the York Office Lead and work closely More ❯
Cowes, Isle of Wight, South East Hybrid / WFH Options
BAE Systems
Job Title: Land Radar Principal Systems Engineer Location: Isle of Wight - Cowes, Chelmsford - Great Baddow or Portsmouth - BroadOak Salary: Up to £70,600 commensurate with skills and experience. Part time & accruing hours available Put yourself into a dynamic Principal Systems Engineering role at the forefront of real … Cycle2work and employee discounts - you may also be eligible for an annual incentive. The Radar Systems Engineering team: 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 More ❯
San Diego, California, United States Hybrid / WFH Options
G2 Ops, Inc
Quick Position Facts! Multiple Opportunities Available Principal Systems Engineer Quick Facts: Location: San Diego, CA - Work primarily at our G2 Ops office, with some positions requiring on-site support at NAVWAR. Work Setting: In-person, with limited telework options depending on project requirements. Security Clearance: Must be eligible … industry standards (DoDAF). Additionally, proficiency in system modeling, simulation, and analysis tools (e.g., MATLAB, Simulink, or similar). About the Role As a Principal Systems Engineer at G2 Ops, you will likely focus on developing and integrating submarine communication systems and/or establishing standards, governance, and … a career that blends cutting-edge technology, national defense, and an incredible team culture, G2 Ops is the place for you. As a Systems Engineer here, you'll be at the heart of mission-critical projects that ensure our warfighters have the best technology and systems available. Quick Reminder More ❯