451 to 475 of 625 Principal Engineer Jobs in the UK

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 ...

Principle Full Stack Engineer – Up to £85k – Liverpool A well-established organisation in the automotive marketing space is hiring a Principal Full Stack Engineer to join at a key moment of transformation. Their platforms power high-intent buying journeys, processing hundreds of thousands of customer interactions each … place, but there’s still plenty of greenfield and real opportunity to shape both the product and how the team operates. The role: Principal Full Stack Engineer (backend-leaning). You’ll be central to the rebuild, shaping architecture, setting standards and working directly with product and leadership. ...

exciting team to join Kainos as we further grow our AI capability. MAIN PURPOSE OF THE ROLE & RESPONSIBILITIES IN THE BUSINESS : As an AI Engineer Manager at Kainos, you'll be responsible for successful delivery of advanced AI solutions leveraging state-of-the-art machine learning, generative and agentic ...

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 ...

Principal Product Engineer – Custom Layout & Virtuoso Applications plays a central role in bridging Cadence’s world-class electronic design tools with the needs of our most strategic customers. Working at the intersection of customer success, R&D, and product development, this role shapes how customers adopt and succeed ...

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 ...

Role: Principal Consultant - Systems Engineering Salary: from £60,000 Location: Portsmouth Intro Sirius Analysis, we are a rapidly growing consultancy firm, renowned for our reputation and our keen ability to understand and meet customer requirements effectively. Our team is dedicated to delivering high-quality, end-to-end consultancy services ...

seeking a skilled Software Engineer who will design, build, and maintain software systems that deliver business value. In this role, you will focus on code quality, architecture decisions, and reliable delivery while leveraging AI tools to enhance productivity. You will verify and review AI-generated code to ensure ...

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 ...

PowerToFly is seeking a Principal Software Engineer to join their Elasticsearch team. In this role, you will enhance the vector similarity search functionality within Elasticsearch, design new features, and resolve intricate bugs. Collaboration occurs daily with a globally distributed team using tools like Zoom and GitHub. The ideal ...

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 ...

CBSbutler Ltd. is looking for a Principal Infrastructure Engineer in Yeovil to lead complex infrastructure projects and drive innovation. This role offers an opportunity to influence the technical architecture while collaborating with various teams to deliver scalable solutions. The ideal candidate will have strong experience with Windows ...

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 ...

company in the UK offers a hybrid role for a Principal Software Engineer (Mobile). You will lead the mobile engineering domain, shape technical strategy, and ensure scalable, secure, and performant mobile platforms that power field operations and customer experiences. You will collaborate with product and engineering, drive ...

PowerToFly is seeking a Principal Software Engineer to drive the evolution of Elasticsearch's core search capabilities. This role involves leading technical projects in search infrastructure, mentoring other engineers, and ensuring robust, high-performance systems. Ideal candidates will have hands-on experience with Elasticsearch, Lucene, or Solr, strong ...

cloud platform services. Ensure production readiness of R&D outputs. Integrate AI components responsibly into business software. Conduct architectural reviews and mentor engineers. Requirements Principal-level engineering depth in C#/.NET and/or Python. Strong record of designing and shipping production services. Production TypeScript/JavaScript frontend ...

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 ...

Twilio is seeking a remote Principal Presales Engineer to join the Twilio Communications EMEA team. This role is crucial for building executive relationships and delivering technical solutions to customers across the region. Ideal candidates have a strong technical pre-sales background, experience with voice protocols, and a creative ...

AALTO, a global leader in Stratospace, is seeking a Principal Software Engineer to join our Farnborough-based multidisciplinary team delivering safety-critical airborne software. You will design, develop, verify and maintain embedded software in C, with C++ and Python as part of the toolkit, collaborating with systems, hardware ...