151 to 175 of 246 Principal Engineer Jobs in London

Principal Java Engineer: Low-Latency Payments, Hybrid UK

Location
Greater London, England, United Kingdom
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. ...

Principal AI Engineer

Hiring Organisation
Sterling Bridge Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
Role: Principal AI Architect Generative & Agentic AI Location: London | Hybrid Salary: £150,000 £200,000 + Bonus + Equity Were working with a fast-growing AI consultancy looking to appoint a Principal AI Architect to take a leading role in designing and delivering complex, production-grade AI solutions. … such as AWS, Azure or GCP Strong architecture and system-design capability Experience communicating complex technical concepts to senior stakeholders Previous technical leadership at Principal, Lead, Staff or Architect level Package £150,000 £200,000 , depending on experience, alongside a bonus and equity structure . This is an opportunity ...

Principal Building Services Engineer (Electrical)

Location
Greater London, England, United Kingdom
minded professionals? Would you enjoy working on diverse projects that make a real difference to communities across the UK? We're looking for a Principal Building Services Engineer (Electrical) to join our growing team at our thriving London office. You'll bring excellent technical skills and the ability … Find out what it is like to work at Pick Everard here: Life at PickEverard - Pick Everard About You Our ideal Associate - Building Services Engineer (Electrical) must have: HND, Degree or equivalent professional qualification in Building Services Engineering, Electrical Engineering or a related discipline. Chartered Engineer (CEng ...

Principal Software Engineer - Data & AI Platform (Hybrid)

Location
Greater London, England, United Kingdom
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 and client stakeholders, owning outcomes end-to-end in a consultative engineering environment. ...

Principal Cloud Engineer | AI/ML FinOps & Terraform

Location
Greater London, England, United Kingdom
CBRE in London is seeking a Principal Cloud Engineer (Terraform) to lead data engineering and AI/ML initiatives within the FinOps data platform. You will design scalable ETL/ELT pipelines, build modular microservices, and deploy AI/ML models to optimize cloud spend. As a principal ...

Principal Software Engineer

Location
Greater London, England, United Kingdom
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 ...

Principal Full-Stack Engineer | Remote UK w/ Clearance

Location
City Of London, England, United Kingdom
Profile 29 seeks a Principal Software Engineer to own architecture across multiple services, provide technical leadership, and contribute to engineering standards while continuing to code. The role centers on a Java/Spring Boot microservices platform on AWS (EKS) with a Next.js frontend and Camunda orchestration ...

Principal AI Engineer

Location
Greater London, England, United Kingdom
solutions across the organisation, working directly with senior stakeholders to turn AI capability into measurable business outcomes. The role As Principal AI Engineer, you will: Own the technical strategy for AI solutions across the firm, ensuring scalable architecture and alignment with best practice Lead the full life cycle ...

Principal AI Engineer

Location
Greater London, England, United Kingdom
lead this transformation , working at the absolute cutting edge of what's possible with today's most advanced AI technologies. Role Overview: As a Principal AI Engineer at WeBuild-AI, you will design, develop, and deploy innovative AI solutions that transform our clients' businesses. You'll leverage cutting ...

Principal Data Engineer — GenAI & LLM Systems Lead

Location
Greater London, England, United Kingdom
Anaplan Inc is looking for a Principal Data Engineer to work across the full stack of Anaplan AI applications. This role includes designing and building retrieval layers for agentic workloads and developing GenAI features that enhance real-time planning workflows. The ideal candidate will have deep knowledge ...

Principal Platform Engineer: Multi-Cloud & AI Platform

Location
Greater London, England, United Kingdom
STOXX is seeking a Principal Platform Engineer to lead and evolve our global cloud platforms across GCP and AWS. You will shape architecture, implement AWS landing zones, and build self-service tooling and CI/CD capabilities to boost developer productivity. You will role-model best practices ...

Principal Salesforce Engineer — Lead Platform & DevOps

Location
Greater London, England, United Kingdom
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 ...

Principal Backend Engineer - Hybrid, Azure & AI-Driven APIs

Location
Greater London, England, United Kingdom
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 ...

PRINCIPAL SECURITY ENGINEER - UP TO £900 (OUTSIDE IR35) CONTRACT

Hiring Organisation
Secure Recruitment Ltd
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 900 Daily
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 ...

Principal AI Quality Engineer

Location
Greater London, England, United Kingdom
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 ...

Principal Data Engineer — Remote Data Platform Lead

Location
Greater London, England, United Kingdom
Colibri Digital is seeking a Principal Data Engineer to bridge complex data architectures with strategic business value. This client-facing role is a high-impact leadership position that ensures resilient, scalable data platforms aligned with long-term business goals. You will lead multi-year technology roadmaps, drive large ...

Principal DevOps Engineer

Location
Greater London, England, United Kingdom
customers face, and to secure workload communication while practicing the highest security standards and providing the best possible user experience. We are seeking a Principal DevOps Engineer to treat the software release lifecycle as a first-class product. In this role, you will move beyond basic automation ...

Principal Engineer

Location
Greater London, England, United Kingdom
MOO brings brands to life in a sustainable way, with a range of remarkable print and merchandise products. We combine design, technology, manufacturing and service, so that people can connect in memorable ways. Not online ...

Principal DevOps Engineer — Secure Workload Delivery

Location
Greater London, England, United Kingdom
Palo Alto Networks in London is seeking a Principal DevOps Engineer to treat the software release lifecycle as a first-class product. You will move beyond basic automation to architect a resilient, high-velocity delivery ecosystem. By engineering the end-to-end lifecycle for diverse components—including SDKs ...

Principal DevOps Engineer: Build Secure, Fast Releases

Location
Greater London, England, United Kingdom
Palo Alto Networks, Inc. is seeking a Principal DevOps Engineer to treat the software release lifecycle as a first-class product. In this role, you will architect a resilient, high-velocity delivery ecosystem across SDKs, Terraform providers, installable software, and Cloud services to ensure a seamless, scalable deployment ...

Principal Risk Datastore Engineer | Financial Service

Location
City Of London, England, United Kingdom
Twenty Recruitment Group is hiring a Principal Risk Datastore Engineer | Financial Service based in City of London, London, South East, UK . This is a Contractor opportunity. Contract Details: Duration: 6 months (likely to extend!) Location: London - 3 days onsite per week Contract engagement: Inside IR35 Budget … with suitable candidate Role: We are partnering with a leading Financial Markets organisation providing clearing services for credit derivatives across global markets, seeking a Principal Risk Datastore Engineer to lead the design and delivery of a m... #J-18808-Ljbffr ...

Principal AI Engineer - Lead Agentic AI Systems

Location
Greater London, England, United Kingdom
leading project solutions company in London is seeking a Principal AI Engineer to drive innovative AI initiatives. The ideal candidate will have strong leadership skills and deep technical expertise in AI and machine learning, overseeing the development of advanced AI systems. This high-impact role demands a visionary ...

Principal Site Reliability Engineer, Infrastructure Observability

Location
Greater London, England, United Kingdom
generosity. Join us for the opportunity to grow and make a difference in ways that matter to you. Role Summary In this role as Principal Site Reliability Engineer, Infrastructure Observability you will help formulate, develop, and implement a team of Site Reliability Engineers (SREs) focused on the observability ...

Principal Backend Engineer, Push

Location
Greater London, England, United Kingdom
stay aligned, move quickly, and think long term, while keeping teams lean and focused on impact. About the Role We're hiring a Principal Backend Engineer to lead the engineering team behind Push, Aave Labs' regulated, non-custodial on-ramp and off-ramp. This is a hands ...

Principal Android Engineer - Search and Recommendations Experience

Location
Greater London, England, United Kingdom
employees. A singular technology platform powered by data and machine learning provides secure, differentiated, and personalized experiences that drive loyalty and traveler satisfaction. This Principal Android Engineer sits within the Search and Recommendations Experience team which owns the end-to-end search and recommendations experience, including search entry ...