451 to 475 of 855 Principal Engineer Jobs in the UK

Client Server Limited is seeking a Principal Software Engineer in London/Hybrid to architect and deliver scalable C#/.NET services on AWS, with optional Python work. You will influence product direction, champion best practices, and guide cross-functional teams in fast-paced sprints. The role offers ...

JPMorgan Chase & Co. in the UK seeks a Principal Software Engineer to lead the design and delivery of high-traffic, customer-facing financial features within the International Consumer Bank. You will ensure reliability, performance, and security at scale in a globally distributed team. The role emphasizes AI-enabled ...

take their career to new heights. Join the ranks of top talent at one of the world’s most influential companies. As a Principal Software Engineer at JPMorganChase within the Chief Data & Analytics Office (CDAO) AI/ML Data Platforms Team, youprovide deep engineering expertise and work across ...

client, a leading organisation in the defence and security sector, is seeking a Principal Test Development Engineer to join its specialist engineering team in Ashford. The role supports the development and manufacture of advanced unmanned aerial and surface target systems used for weapons testing, evaluation and operator training … Early finish at 13:30 on Fridays Applicants must be eligible for SC clearance as a minimum This is an excellent opportunity for a Principal Test Development Engineer to provide technical leadership while remaining hands-on with complex electronic and software-based test solutions within a highly specialised ...

Cathcart Technology is seeking a Principal Java Engineer (Hands-On) in Manchester. This role combines hands-on coding with technical leadership, mentoring engineers and setting engineering standards across the Scrum teams. You will design and deliver high‐quality Java applications using Spring Boot and AWS, advocate ...

reasoning behind them, so nobody has to rediscover it in six months. RequirementsWhat we're looking for: Must have10+ years of experience, with principal or staff+ scope you can point to: you've joined a complex, live system and its team and measurably improved it together, including the sequencing … credibility, not formal authority. If what attracts you to this role is the chance to "decide" things, this isn't the right fit: every engineer here, principal included, asks good questions and earns agreement rather than pulling rank. Strong opinions, loosely held. Earning agreement means forming a real ...

Strategic Enterprise Technology Leadership Recognised Java Engineering Expertise Advanced Architecture & Systems Integration Capability What this role is all about We're looking for a Principal Software Engineer to join Vitality's Engineering function, providing technical leadership across complex enterprise platforms and customer-facing solutions. This is a highly ...

Northrop Grumman UK is seeking a Principal Software Engineer to design, develop, and maintain the critical infrastructure powering our services. You will lead multiple engineering teams, set technical direction, and deliver solutions with real customer impact. You’ll mentor engineers, collaborate with partners and customers, and ensure delivery ...

Prior experience with these specific tools isn't required — we're happy to support your learning where you have less experience. Our most recent Principal Engineer hire came predominantly from a Java background, even though there's no scope to use Java in the role. ...

AI. What is The Role Elasticsearch powers search, observability, and AI retrieval (RAG) for the world's largest organizations. We are seeking a Principal Software Engineer to join the Elasticsearch Performance team. In this role, you will lead architectural and code-level performance engineering initiatives. Your goal ...

stronger customer proposition and a new revenue stream, while asset owners see better returns and the grid gets more flexibility. The role As a Principal Software Engineer you are the senior technical authority for one or more of Joulen's product domains, sitting between Senior Engineer and Head of Engineering on our Software Engineer career track. You set the design principles, delivery strategy and operational standards for your domain, and you work with the other Principals & Head of Engineering to shape how engineering works across Joulen. You stay hands-on: you pair, write tests ...

client is a global aerospace, defence and security company. Job Description: Are you an experienced Systems Engineer or Scientist with an Electronics background? We are recruiting for a Principal Systems Engineer in our growing Detectors Area of Business, who can apply their expertise to deliver cutting-edge ...

7.2bn for the UK economy. Come and join a mission that matters! London (Hybrid) | 2 days in the office | Competitive Salary + Benefits As Principal Data Engineer you are the primary technical authority for Funding Circle's Data Engineering and Data Platform architecture, designing innovative solutions on Snowflake … lift each other up and think smart every day. A minimum of 10 years of experience in Data & Analytics, with experience in Staff, Principal (or equivalent) roles in Data Engineering, Data Architecture, or Data Platform, ideally within digital products or FinTech. Extensive hands-on experience designing, building and operating ...

## Principal Software EngineerApply: Maidenhead (GBR): Full time: Posted Yesterday: REQ-12540Company: Ultra Intelligence & CommunicationsCyber (UK) Business# **Powering Decision**Join the team redefining defense technology. From engineering systems that save lives to leading programs that change the battlefield—find your place in the future of defense.**Cyber Business ...

Joulen in Belfast is seeking a Principal Software Engineer to act as the senior technical authority across product domains, shaping design principles, delivery strategy and operational standards while remaining hands-on. You will mentor other engineers, advance trunk-based development, and govern AI-driven systems, with ownership ...

inclusive employer and a member of myGwork – the largest global platform for the LGBTQ+ business community. Please do not contact the recruiter directly. Principal Security Software Engineer Description - HP Wolf Security is transforming endpoint security through hardware-enforced protection, isolation technologies, and cloud-connected security services. Our solutions … security engineering practices that underpin our products, ensuring security is built into every stage of the software development lifecycle. We are looking for a Principal Security Software Engineer to lead improvements to Wolf Security's secure software development processes, helping the organisation meet the requirements of the European ...

client is a digital bank that is looking for a Principal Software Engineer to get involved in the very early stages of a greenfield project that will involve building a large-scale customer facing product. If you join, you'll define the engineering architecture and capabilities that deliver ...

# Principal EC&I Engineer* Nuclear* Permanent/* Warrington* United Kingdom* 03/06/26* On site* ShareI apply##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 … Scope Management:** Monitor tasks closely and implement protocols to adjust programme scopes as needed.* **Resource Alignment:** Identify resource gaps and assist the Chief Design Engineer (CDE) in crafting resourcing strategies.* **Budget Development:** Help establish and maintain budgets for EC&I programmes.* **Financial Oversight:** Track work pack budgets, forecast ...

# Principal EC&I Engineer* Nuclear* Permanent/* Derby* United Kingdom* 03/06/26* On site* ShareI apply##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 … Scope Management:** Monitor tasks closely and implement protocols to adjust programme scopes as needed.* **Resource Alignment:** Identify resource gaps and assist the Chief Design Engineer (CDE) in crafting resourcing strategies.* **Budget Development:** Help establish and maintain budgets for EC&I programmes.* **Financial Oversight:** Track work pack budgets, forecast ...

seeking an experienced Principal Electronics Engineer to lead electronic hardware design and development activities, while providing technical direction and management support to a small team of engineers. The role will involve overseeing the development and improvement of electronic products throughout their lifecycle, from initial concept and design through ...

Description Summary Principal Engineers combine a high level of technical expertise with sound business acumen and a good understanding of engineering processes. They are part of a formal career path for technical personnel wanting to continue to develop and grow their technical competencies while having increasingly more impact ...

Indra Group UK & Ireland is seeking a Senior Principal Software Engineer (FTC, 20 months) to lead technical efforts across Back Office applications within a large TfL programme. You will guide software engineering, incident handling and collaboration with cross-functional teams to ensure reliable service delivery. The role emphasizes ...

building the next generation of digital health – AI-powered, privacy-first, clinically backed – to help our users know their body better. The job Principal Infrastructure Engineer More than 80 million women open Flo every month to understand their bodies and their health. Every one of those sessions runs … personal as data gets. Keeping that fast and private at this scale is the job. Velocity runs the platform that every Flo engineer builds on: Kubernetes on AWS, the data stores behind our services, and the golden paths that let product teams ship without needing to be infrastructure experts. ...

Description: Are you a Systems or Research Engineer who loves contributing to or wishes to contribute to the UKs Defence Industry and making impactful change? We are recruiting for a someone to research, investigate and develop different approaches for the design of airborne networks. This includes researching, proposing … span across range of activities that help pull together all the necessary engineering and technology strands into a high-performance system. As a Systems Engineer, you will bridge the gap between the theoretically possible and the practically implementable. Typical work you might be involved in: Research into meshed ...

member of myGwork – the largest global platform for the LGBTQ+ business community. Please do not contact the recruiter directly. JOB DETAILS JOB TITLE: SAP Principal Sys Engineer - Procurement JOB REF:52949 JOB BAND: D CONTRACT TYPE: Permanent, Full-time DEPARTMENT: BBC Technology Group LOCATION: London or Cardiff Hybrid ...