776 to 800 of 1,108 Principal Engineer Jobs

Elastic, the Search AI Company, is seeking a Principal Software Engineer to join the Elasticsearch - Search Infra team. You will define, lead, and contribute to core search and indexing capabilities in a globally distributed environment. You will mentor engineers, shape a long-term technical vision, and collaborate with ...

Raytheon UK is seeking a Principal Data Engineer to join our Cyber software team in London. You will build and maintain data pipelines, optimize data for analytics, and work in a cross-functional agile environment. Active eDV clearance is required. You will collaborate with stakeholders, engineers, and data ...

Humand Talent Solutions and its client are seeking a Principal Java Engineer to drive the evolution of its SaaS platforms. This role blends hands-on engineering with technical leadership, shaping architecture and engineering standards without direct people management. You’ll collaborate with Engineering, Product, DevOps, Data ...

Source Technology Limited in London is seeking a Principal Salesforce Engineer to lead the technical design and hands-on development of scalable, secure Salesforce solutions for global financial services clients. You will champion engineering standards, build robust integrations, and drive DevOps maturity across teams. The role also focuses ...

Kinetech seeks a Lead/Principal Backend Engineer to shape architecture and lead technical delivery in a hybrid setup with Central London participation. You will stay hands-on in core backend work while guiding teams across API design, integrations, and event-driven systems, using C#/.NET, Python ...

Partners seeks an experienced Principal Java Engineer to join a high-performing team tackling low-latency, high-throughput payment systems. Hybrid role in the UK with modern tech stack and real-time services. You will own design decisions, mentor peers, and drive performance and observability enhancements across services. ...

Leonardo UK Ltd is seeking a Lead/Principal Systems Engineer to join our Precision Guidance team in the UK. The role focuses on executing systems engineering activities, providing expert guidance, and shaping technical vision for projects across multiple lifecycle stages. The position supports a flexible hybrid working ...

Hippo is a fast-growing digital consultancy delivering transformative digital solutions across public and private sectors in the UK. We seek a Principal Software Engineer to shape technical direction, lead multiple squads, and drive innovation across the engineering community. You will partner with stakeholders, oversee complex pipelines ...

Principal IT Security Engineer – Windows, Automation, Endpoint SecurityIndustry leading compensation London – HybridQuant Capital is partnered with a leading trading firm looking to hire an IT Security Engineer to strengthen their global security posture. This role sits inside a high-performing engineering group and suits someone ...

QinetiQ is seeking a Principal Systems Engineer for its UK operations. The role focuses on leading complex system refreshes on MOD test ranges and developing testing systems for evolving military equipment, working with Mission Rehearsal teams across diverse capabilities. You will technically lead delivery, create artefacts, and guide ...

PRINCIPAL SECURITY ENGINEER UP TO £900 Day Rate ( Outside IR35 ) - 6 Month Renewable ( 2Year Projected Contract ) Hybrid Working SECURE has Strategically Partnered with a leading consultancy to support a Global FinTech Leader operating under strict Regulatory Frameworks They are looking for an experienced P rincipal Security Engineer ...

benchmarked against the external market. Exceptions above the standard range are managed through governance controls to protect internal equity. Are you a software engineer with a working knowledge of Artificial Intelligence (AI) and Machine Learning (ML)? If you are interested in developing software for cutting‐edge defence and aerospace … sixth‐generation stealth fighter jet or a revolutionary Laser Directed Energy product, Leonardo would like to hear from you. We are seeking Senior or Principal Software Engineers with an interest in AI/ML to join our Electronics UK business. Successful candidates will contribute to the delivery of leading ...

慨正橡扯 in the United Kingdom is seeking a Principal Software Engineer to join their team in Manchester or Gloucester. This full-time, permanent position offers a hybrid working pattern, focusing on both technical tasks and team leadership. The ideal candidate will have extensive experience in full-stack development ...

Partners is seeking a Principal Java Engineer to join our high-performing team in the UK. You will own the design and optimization of low-latency, high-throughput backend systems for payments, building secure RESTful APIs and scalable microservices. In this hybrid role, you will deploy and monitor ...

against the external market. Exceptions above the standard range are managed through governance controls to protect internal equity. Your Impact Are you a software engineer with a working knowledge of Artificial Intelligence (AI) and Machine Learning (ML)? Are you interested in developing software for some of the most cutting … revolutionary Laser Directed Energy product excites you, then our client would like to hear from you. Our client is seeking to recruit Senior or Principal Software Engineers with an interest in Artificial Intelligence and Machine Learning to join our well-established software community within our Electronics UK business. Successful ...

have a fantastic opportunity for a Principal Systems Engineer to join an innovative engineering business delivering complex projects within highly regulated industries. Working across the full engineering lifecycle, you'll play a key role in defining, integrating and validating multidisciplinary systems, ensuring solutions meet technical, safety and customer … requirements from concept through to commissioning. This position would suit a Systems Engineer with experience in the nuclear, defence, aerospace or other highly regulated sectors who enjoys solving complex engineering challenges. It will appeal to someone who is passionate about systems thinking, requirements management and working collaboratively across mechanical ...

ev.energy is seeking a Principal Product Engineer to own the product vision across AI-first growth areas. You’ll lead small squads (2–3 engineers) from concept to MVP and ship demos to real customers fast, working with Commercial, Demand Generation, and the CEO to translate market signals ...

exciting opportunity to define how a global technology company assures quality in the age of AI. Fourth is seeking an exceptional, strategically minded Principal AI Quality Engineer to drive our AI-driven global QA strategy from the front. Reporting to the Global Head of Service Delivery within Technology … unification and continuous improvement of testing processes and practices across delivery teams, partnering directly with Software Engineering Managers and Product Managers. Act as the principal point of escalation for complex testing and quality challenges across global Engineering teams, marshalling subject matter expertise to resolve them. Champion modern testing technologies ...

FPGA Engineer – Junior to Principal Level Based in North Germany | Office-Based Cutting-edge FPGA Development | Aerospace & Defence-Grade Systems A specialist engineering firm is seeking FPGA Engineers at various levels—from junior to principal—to join their high-performing design team in North Germany. This … opportunity to contribute to technically advanced projects with a strong focus on robust, real-time, and embedded FPGA development. The Role: As an FPGA Engineer, you will take an active role in the design, verification, and delivery of VHDL/Verilog-based solutions for complex integrated systems. Collaborating closely ...

Gearset is seeking a Principal DevOps Engineer to join a product-driven team built on trust and tight feedback loops. You’ll operate multi-region infrastructure on AWS and Kubernetes, advancing security, automation, and scalable releases. You’ll own the technical roadmap, collaborate across engineering, data, and sales ...

Elsevier is seeking a Principal AI Engineer in the United Kingdom to lead technical execution for AI innovations within cross-functional teams. This role requires over 10 years of experience in software engineering and a strong grasp of AI systems, ensuring solutions are built to comply with architectural ...

exciting job opportunity has arisen for a Principal RF Design Engineer based in Norwich, Norfolk to join the market leader involved within an exciting technology sector. Due to continued growth, they are seeking a Principal RF Design Engineer to be involved with development and progression … multiple projects. This job is ideal for an experienced, hands-on RF and antenna engineer who enjoys tech click apply for full job details ...

Are you passionate about leading technical excellence while remaining hands‐on in building high-quality software? Do you enjoy influencing teams, shaping engineering practices, and delivering reliable, secure, and observable solutions in a collaborative environment ...

About WeBuild-AI: WeBuild-AI are AI natives delivering 10x value for enterprise organisations. We combine highly skilled experts with our AI Launchpad , industry-aligned language models, and agents to transform enterprise organisations into AI ...

JPMorgan Chase & Co. is seeking a Principal Software Engineer within the Applied Innovation (of AI) Engineering team in the CDAO Technology Group. You will design, develop, deploy, and maintain advanced AI products while collaborating with software engineers, data engineers, and data scientists to deliver trusted solutions. You will ...