18 of 18 Principal Engineer Jobs in the Thames Valley

Role: Principal Engineer (Backend) Salary range: 100-120k Location: Central London (x2 days per week onsite - Tues & Thurs) Tech stack includes: TypeScript, React, AWS Lambda, TypeScript, Node.js, PostgreSQL. Current team size: x6 Engineers + Head of Engineering We're working with a SaaS startup company … Instead of updating spreadsheets or manually changing menus site-by-site, they give operators one central system to control everything properly and instantly. As Principal Engineer, this purely an IC role (no management), responsibilities would include: Hands on coding (heavily focussing on backend) Technical point of contact ...

looking for a fantastic Principal Software Engineer opportunity in High Wycombe? If so, my client is currently recruiting for a Principal Software Engineer to join their R&D site in High Wycombe, Buckinghamshire My client design and manufacture a range of products and systems focusing … Instrumentation, but you do need a strong background in embedded software and architecture. Main requirements for the Principal Software Engineer job will be: - You will be responsible for the software architecture for their products/systems. - You will have a strong Agile/Scrum background - Must have excellent ...

Principal Software Engineer (£130,000 - £155,000 + bonus) About the Company: A publicly-traded fintech (NYSE-listed) operating one of the world's most-visited platforms for finance news and data, serving millions of users globally. The engineering team is responsible for infrastructure that handles high-volume … decisions that directly impact system performance and user experience. Requirements: 8+ years backend development experience with demonstrated technical leadership as Lead/Staff/Principal Engineer Deep expertise building and operating large-scale distributed systems in production Polyglot engineering background; strong proficiency in Node.js or Golang preferred Hands ...

hiring a Principal Software Engineer to join a global technology business based in Buckinghamshire . The company designs and builds high-precision laboratory instruments used in science, healthcare, and environmental testing Please note: NO SPONSORSHIP IS PROVIDED WITH THIS POSITION What You’ll Do as a Principal Software Engineer: Lead the design and architecture of software systems across the full stack, from embedded C/C++ firmware controlling hardware to high-level C#/.NET applications. Mentor and guide a multidisciplinary team of software, firmware, and electronics engineers. Apply physics-based thinking to develop algorithms ...

Principal Hardware Engineer (Electronics) Langley, UK- Hybrid Working Available Competitive Salary & variety of benefits on offer Design what is next in advanced imaging technology At Active Silicon, we design and manufacture cutting-edge electronics and computer imaging products used across science and — from life sciences and medical imaging … ambition is simple: build best-in-class products that really matter. As part of our continued growth, we are looking for a Principal Hardware Engineer (Electronics) to take ownership of complex, high-speed hardware designs, and lead projects from concept through to long-term support. If you thrive ...

Principal Platform Engineer (Education) Competitive + Bonus UK Permanent full time Were looking for an AI-first Principal Platform Engineer to act as the technical and architectural lead for our Education platform ecosystem. Youll move beyond traditional DevOps, shaping strategy, defining standards, and building automated Golden ...

title: Principal Software Engineer Location: Oxford - Hybrid Salary: up to £75,000 Job Type: Permanent Organisation Overview Our Client operates within the high-tech instrumentation sector, specialising in advanced measurement solutions for scientific and industrial applications. Recognised for its innovative approach and commitment to excellence, Our Client fosters … culture that encourages professional development and teamwork. Role Summary Due to ongoing growth and strategic development initiatives, Our Client is seeking an experienced Principal Software Engineer to lead the development of sophisticated software applications and drivers for its range of specialised products. This pivotal role is fundamental ...

Principal Platform Engineer (Education) Competitive + Bonus UK Permanent full time Were looking for an AI-first Principal Platform Engineer to act as the technical and architectural lead for our Education platform ecosystem. Youll move beyond traditional DevOps, shaping strategy, defining standards, and building automated Golden ...

join a company at the forefront of defence technology, where innovation and excellence are at the heart of everything they do. As a Principal Systems Engineer, you'll be working on groundbreaking projects that redefine the future of defence, contributing to the development of advanced systems that ensure … Demonstrable experience in hardware, software, or firmware development, particularly in embedded environments. - Leadership experience, managing and coaching teams to achieve project goals. As a Principal Systems Engineer, you'll play a pivotal role in shaping the company's innovative solutions, ensuring they meet the stringent requirements of their ...

Title: Principal Systems Engineer Location: Frimley. We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role Salary: Negotiable dependant on experience What you'll be doing: Provide oversight and technical ownership of CCS design, leading design … network or software engineering, ideally with a background in operations Ability to take the lead on technical matters and provide expert guidance Chartered Engineer status or working towards Specialist expertise in Combat Systems, particularly in relation to submarines, would be advantageous Familiarity with DOORS and prior hands-on experience ...

Title: Principal Forward Deployed Engineer – AI & Customer-Facing Technical Leader Location: Remote Travel: Customer visits 4–5 days/month; occasional team gatherings Salary: Senior: €130–150k base + growth trajectory Principal: €160–200k base + package discussion Tech: Python, JavaScript, Azure … Consultancy The Role We're looking for talented engineers to join our customer-facing AI practice, from Senior Forward Deployed Engineers through to Principal-level AI technical leaders. You'll work directly with clients to uncover problems, build prototypes, and guide full AI-enabled solution lifecycles. This ...

Title: Principal Forward Deployed Engineer – AI & Customer-Facing Technical Leader Location: Remote Travel: Customer visits 4–5 days/month; occasional team gatherings Salary: Senior: €130–150k base + growth trajectory Principal: €160–200k base + package discussion Tech: Python, JavaScript, Azure … Consultancy The Role We're looking for talented engineers to join our customer-facing AI practice, from Senior Forward Deployed Engineers through to Principal-level AI technical leaders. You'll work directly with clients to uncover problems, build prototypes, and guide full AI-enabled solution lifecycles. This ...

Title: Principal Forward Deployed Engineer – AI & Customer-Facing Technical Leader Location: Remote Travel: Customer visits 4–5 days/month; occasional team gatherings Salary: Senior: €130–150k base + growth trajectory Principal: €160–200k base + package discussion Tech: Python, JavaScript, Azure … Consultancy The Role We're looking for talented engineers to join our customer-facing AI practice, from Senior Forward Deployed Engineers through to Principal-level AI technical leaders. You'll work directly with clients to uncover problems, build prototypes, and guide full AI-enabled solution lifecycles. This ...

Principal Software Engineer IoT & Full-Stack Location: Hybrid/Bicester Type: Permanent Salary: Competitive, market-based TUAL Technology is an innovative, VC-backed start-up based in Bicester, developing PowerUp a high-power EV charging solution designed for grid-constrained sites. By integrating battery storage, smart energy management … fleets through a portfolio of intelligent, software-defined, cloud and IoT-enabled charging solutions. The Role Were looking for a hands-on Lead Software Engineer to own the design and delivery of our IoT and cloud software platform. Youll connect our ultra-fast chargers, manage data and remote control ...

this passion for innovation that drives each one of our employees for personal and professional success. About The Role We are seeking a Principal Software Engineer based in London to provide technical leadership across backend services supporting our global payment gateway system. You will design and evolve core … Mockito Ownership of quality standards, testability, and CI discipline Experience working in Agile/Scrum environments and influencing engineering best practices Experience Level Principal‐level backend engineering experience building and operating large‐scale, high‐performance systems Approximately 8+ years of backend development experience, with several years working on production ...

Principal Software Engineer IoT & Full-Stack Location: Hybrid/Bicester Type: Permanent Salary: Competitive, market-based TUAL Technology is an innovative, VC-backed start-up based in Bicester, developing PowerUp a high-power EV charging solution designed for grid-constrained sites. By integrating battery storage, smart energy management ...

specialist manufacturing programmes to the automotive, aerospace, marine, and defence sectors, accelerating the net zero journey for our customers. We are seeking a Principal Electrical & Electronic Systems Integration Engineer to design and deliver integrated systems across a diverse range of engineering projects varying in size and scope. ...

Overview: A global semiconductor company is seeking a Principal GPU HW Design Engineer to design and optimise next-generation graphics silicon. You'll work across RTL and microarchitecture, collaborating with design, verification, and validation teams to deliver high-performance, power-efficient hardware. Key responsibilities Define microarchitecture specs ...