151 to 175 of 213 Principal Engineer Jobs in London

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 ...

Principle Java Engineer Salary to £70k-£90k + company options scheme Hybrid working (1 day per week in their London Vauxhall offices) NB: Please only apply if you have resided in the UK for the past 5 years and are prepared to go through UK SC Security Clearance Overview … growing fast and looking for bright, dynamic people to help build their business. Role Theyre looking for an experienced (Principle/Team Lead) Java Engineer to join their implementation team. Youll work across Camunda BPMN/DMN process automation, API integration, and microservice orchestration helping their public-sector clients ...

Principle Java Engineer Salary to £70k-£90k* + company options scheme (*for £90k you will have to be their Unicorn candidate i.e. having hands on experience of working with Camunda + having SC clearance already in place + being eDV eligible. They will consider remote workers … growing fast and looking for bright, dynamic people to help build their business. Role Theyre looking for an experienced (Principle/Team Lead) Java Engineer to join their implementation team. Youll work across Camunda BPMN/DMN process automation, API integration, and microservice orchestration helping their public-sector clients ...

United States Digital Space LLC is seeking a Principal Software Engineer, Mobile (React Native) in Nine Elms, London. This full-time position demands a hands-on leader who will guide the technical direction for consumer mobile apps across iOS, Android, and web platforms. The successful candidate will leverage ...

United States Digital Space LLC in London is seeking a Principal Software Engineer - Applied AI/ML to lead the design and delivery of GenAI powered fintech products. You will work in cross-functional squads, mentor engineers, and help translate ambitious ideas into scalable, reliable systems that ...

London, United Kingdom | Posted on 30/07/2026 Contract role: Principal AI Data Engineer Contract Location: London, 5 days onsite weekly Develop and evaluate AI/GenAI/AgenticAI prototypesusing tools like Copilot Studio, AI Foundry and Copilot Analyst Agent, MosiacAI, Genie, AgentBricks, MLflow with ...

Responsibilities Provide technical leadership across our technology function, driving the design, delivery, and continuous improvement of enterprise applications and digital services. Define architecture, establish engineering standards, oversee delivery, and ensure solutions are scalable, secure, maintainable ...

company is shaping the future where trusted data becomes a transformative force for business and society. The Challenge We're looking for a Principal Solutions Engineer that will report to the Director of Solutions Engineering. In this role, you will drive business development and sales growth ...

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 ...

repeat business. We partner closely with teams across Expedia Group to drive growth and achieve results for our customers and the company. 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, results ...

smart AI agents and deeper FMCG market intelligence for the benefit of our customers across a growing operational footprint. The Role As the Principal Security Engineer, you will play a pivotal role in shaping the security strategy for both enterprise IT systems and our software products. Reporting ...

RedCloud is seeking a Principal Security Engineer to shape the security strategy for enterprise IT and software products. This role involves leading a team of security professionals and ensuring compliance with key standards. The ideal candidate will have a strong background in both enterprise and product security, hands ...

Expedia Group in Westminster, UK seeks a Principal Android Engineer to lead the end-to-end Android experience across travel products. You will set architectural direction, mentor engineers, and deliver AI-enabled features for scalable mobile platforms. The ideal candidate has 12+ years in Android, strong Kotlin ...

Exciting Opportunity for an Experienced Principal AI Data Engineer to help build and scale GenAI and agentic AI solutions as part of a new project for a Leading Energy Company. Responsibilities: Build and evaluate GenAI/Agentic AI prototypes (Copilot Studio, Azure AI Foundry, Databricks Mosaic AI, Genie ...

Role Summary We are seeking a Principal Machine Learning Engineer (SageMaker, MLOps, Model Governance & Explainability) to provide technical leadership across the full lifecycle of machine learning systems powering a new matching platform. This role is accountable for defining ML architecture, establishing engineering standards, driving MLOps maturity, and ensuring … that our ML systems operate reliably at scale, underpinned by a robust governance and compliance framework. This is a highly hands‐on, highly technical, principal‐level role that combines architectural vision with deep practical expertise in ML engineering and AWS-native MLOps. Key Responsibilities Technical Leadership & Architecture Define ...

United States Digital Space LLC is seeking a Principal Data Engineer to lead data engineering across the ODI directorate, enabling secure, scalable data platforms underpinning data products and decision-making. You will act as a technical leader, designing and deploying data pipelines, maintaining data products, mentoring engineers ...

Bullish, a global digital asset platform, is looking for a Principal Backend Engineer on the CoinDesk Data Engineering team in the UK. You’ll shape the technical direction for high‐throughput services, spanning REST and streaming, and own core infrastructure in a 24/7 financial environment. ...

Technologies is seeking a Principal Support Engineer to lead strategic escalations and drive technical excellence in a global customer-success context. You’ll collaborate with Engineering, PM, and Account Management to enhance platform reliability and customer outcomes. You will mentor engineers, shape post-sales support, and champion automation ...

Key Responsibilities Architect and deliver distributed, high-performance systems for trading environments Build and optimise real-time and near real-time data pipelines supporting intraday trading decisions Design systems integrating market data feeds, positions, P ...

MOO set out to shake up the world of print back in 2006. And we’ve come a long way since. Today we’re a 400 + strong team (we’re thinking of getting matching ...

Principal Microsoft Defender XDR, IRM & Deception Engineer, working within the Global Information and Cyber Security Defence (ICSD) function, is the technical leader for enterprise cyber deception and unified detection and response across the Microsoft security ecosystem. The role focuses on building, operating, and continuously evolving an enterprise-grade ...

Cboe Europe is seeking a Principal Python Software Engineer. As part of a small, talented development team, you will help build and expand the data pipeline and event streaming functionality of the largest equities exchange in Europe, as well as our trade reporting facility and other platforms. … value of testable, maintainable code, pair programming and software craftsmanship; as we expand and grow our product suite, we need an experienced engineer with strong leadership skills to help us grow. Responsibilities Working closely with our business development and sales teams to develop innovative new products and features ...

United States Digital Space LLC is seeking a Principal Software Engineer to lead our Data Technology Platforms in London. You will shape enterprise-scale data platforms, partnering with stakeholders to deliver high-performance data capabilities for operational, analytical, regulatory, and AI-driven initiatives. The role combines hands ...

Barclays is seeking an experienced software engineering leader to design and implement robust software solutions and mentor engineers. You will collaborate with product managers, designers and stakeholders to translate business needs into scalable technical architectures. ...

Senior Machine Learning Engineer AI Startup Location: Fully Remote (Europe) Salary: £80,000 - £180,000 + Equity The Role I'm working with a well-funded, stealth AI company building a next-generation AI assistant designed to help people manage everyday tasks, conversations and workflows. The product is still ...