Principal Performance Modelling Engineer £140,000+ DOE, UK remote working + stock options! I'm currently partnered with a Semiconductor start-up, based in Silicon Valley. They are working on re-imagining Silicon, creating RISCV based computing platforms aimed at transforming the industry. As a Principal Performance Modelling Engineer you will develop functional and timing simulators … talented group of exceptional people. There is huge opportunity for this position to develop into a technical leadership role through excellent career progression avenues. What's required for this Principal Performance Modelling Engineer position? Strong C/C++ development skills Excellent understanding of GPU/CPU architecture and microarchitecture Knowledge of performance modelling concepts SIMT processing, cache and … memory hierarchies Understanding of benchmarks and workloads in the ML space If you are a Principal Performance Modelling Engineer, looking for an opportunity to work in a flexible, creative environment, please apply to learn more! If you are interested in this, or other software opportunities across the UK, please contact Jack Bird at IC Resources. jack.bird@ic-resources.com More ❯
Bristol, England, United Kingdom Hybrid / WFH Options
Beautyk Creative
Principal Civil Engineer, Highways and Drainage, COR7241 Join to apply for the Principal Civil Engineer, Highways and Drainage, COR7241 role at Beautyk Creative Principal Civil Engineer, Highways and Drainage, COR7241 5 days ago Be among the first 25 applicants Join to apply for the Principal Civil Engineer, Highways and Drainage, COR7241 role … at Beautyk Creative Are you an experienced Civil Engineer ready to take the next step into a Principal-level role?If so, this could be the perfect opportunity for you! The Role As the Principal Civil Engineer, you'll manage and deliver projects involving flood risk assessments, drainage strategies, and the design of flood alleviation and … new work, making a direct impact on the company's growth. Proficiency in WinDES is essential, with Civil 3D or PDS highly desirable for highways design. The Company The Principal Civil Engineer will be joining a respected infrastructure consultancy known for delivering innovative and sustainable design solutions across a broad client base. The successful candidate will enjoy a More ❯
Warwickshire, England, United Kingdom Hybrid / WFH Options
Premier Group
Job Title: Lead/Principal Hardware & Firmware Engineer Location: Warwickshire Salary: £75,000 - £90,000 per annum Hybrid Working & Great Benefits Package – See Below Company Overview & Job Title: One of the most exciting and fastest growing companies located in Warwick (Warwickshire) who’re also an award-winning business who specialise in the design and development of high-tech … cutting-edge technology and products have an exciting new position to hire a brand-new Lead/Principal Hardware & Firmware Engineer to join the successful company who have an excellent dynamic & team friendly environment. Salary on offer and working onsite and hybrid: The salary on offer for the successful Lead/Principal Hardware & Firmware Engineer is … per annum . Hybrid working of 2-3 days working in the office is available. The role: This is an exciting role because the ideal Lead/Principal Hardware & Firmware Engineer will have a strong background in Electronics Design, Firmware Development & Leadership skills . The Lead/Principal Hardware & Firmware Engineer will lead the design and More ❯
Nottingham, England, United Kingdom Hybrid / WFH Options
Client Server
PrincipalEngineer/Architect (C# .Net SQL AWS) Remote to £80k Opportunity to progress your career in an impactful, PrincipalEngineer/Architect role, at a tech company that provides a range of SaaS software solutions. As a PrincipalEngineer/Architect you will collaborate with Product Management and Agile software delivery tribes to … a strong knowledge of event driven microservices You have advanced technical documentation skills You have excellent communication, presentation and collaboration skills What's in it for you: As a PrincipalEngineer/Architect you will earn a competitive package: Salary to £80k 25 days holiday Vitality Health Insurance 5% non-contributory pension Death in Service Apply now to … find out more about this PrincipalEngineer/Architect (C# .Net SQL AWS) opportunity. At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities employer whose people come from all walks of life and will never discriminate based on race, colour, religion, sex More ❯
London, England, United Kingdom Hybrid / WFH Options
Owen Thomas | Pending B Corp™
Principal ADMET Scientist - modelling, ML engineer | Cheminformatics | Series A - Drug discovery B2B Platform | Fully Remote, EU | £ 700-1,200 per day, Outside IR35 | 6-12 months Contract Length Principal ADMET Scientist - modelling, ML engineer | Cheminformatics | Series A - Drug discovery B2B Platform | Fully Remote, EU | £ 700-1,200 per day, Outside IR35 | 6-12 months Contract Length … applicants Direct message the job poster from Owen Thomas | Pending B Corp Co-Founder @ Owen Thomas - Pending B Corp | Scaling teams for all things Data, Cloud & AI/ML Principal ADMET Scientist - modelling, ML engineer | Cheminformatics | Series A - Drug discovery B2B Platform | Fully Remote, EU | £ 700-1,200 per day, Outside IR35 | 6-12 months Contract Length The … Client: A mission-driven technology company operating in the life sciences domain is seeking a Principal Scientist - hands-on ADMET modelling, ML engineer to lead the technical direction for ADMET (Absorption, Distribution, Metabolism, Excretion, and Toxicity) modeling efforts within its drug discovery platform. The organisation enables collaborative model development across partner organisations while maintaining strict data privacy and More ❯
Principal Mechanical Design Engineer Location: Wolverhampton, UK Company: Global Engineering OEM Salary: £75,000 basic + Excellent Pension + Flexible & Hybrid Working + Outstanding Benefits About the Principal Mechanical Design Engineer Role We're hiring a Principal Mechanical Design Engineer to join a global leader in complex engineering solutions based near Wolverhampton. This is … delivering high-integrity systems across the full design lifecycle-from FEED (Front-End Engineering Design) to final delivery-while driving innovation, safety, and engineering excellence. Key Responsibilities of the Principal Mechanical Design Engineer: Lead the mechanical design of custom-engineered systems for industrial and safety-critical applications. Manage projects through the full design lifecycle, from concept and FEED … promoting a culture of continuous improvement. Collaborate with cross-functional teams including project managers, manufacturing, and quality assurance. What We're Looking For Extensive experience as a Mechanical Design Engineer in a regulated industry (e.g., defence, oil & gas, aerospace, energy, etc.). Strong background in bespoke machinery, heavy engineering systems, or process equipment. High proficiency in 3D CAD and More ❯
Warrington, Cheshire, North West Hybrid / WFH Options
Progressive
Principal Mechanical Design Engineer Location: Warrington, UK Company: Global Nuclear Engineering OEM Salary: £75,000 basic + Excellent Pension + Flexible & Hybrid Working + Outstanding Benefits About the Principal Mechanical Design Engineer Role: We are seeking a Principal Mechanical Design Engineer to join a global leader in nuclear engineering, based near Warrington. This is … to final delivery. This role offers the chance to shape technical direction, mentor engineering teams, and influence innovation in a highly regulated and safety-critical environment. Key Responsibilities of Principal Mechanical Design Engineer Lead and oversee the mechanical design of custom-engineered systems for nuclear and industrial applications. Manage full project lifecycle from concept and FEED to detailed … excellence. Collaborate with cross-functional teams including project management, manufacturing, and quality assurance to ensure successful project outcomes. What We're Looking For Extensive experience as a Mechanical Design Engineer in a regulated industry (nuclear, defence, oil & gas, aerospace, etc.). Proven track record in leading the design of bespoke machinery, heavy mechanical handling systems, or process equipment. High More ❯
Senior/Principal Software Engineer - Kotlin £90,000-£150,000 basic salary Project at Tier One Investment Bank London - Hybrid working - flexible Are you a Senior/PrincipalEngineer with commercial Kotlin experience who is ready to make an impact in one of the world's leading financial institutions in the new year? We're searching … for a Senior/Principal Kotlin focused Engineer to join a critical project at a Tier 1 Investment Bank, working on mission-critical systems that power global investment strategies. This is a greenfield project where you'll have a lot of autonomy and influence. Working for a developer-led software consultancy passionate about software craftsmanship and developer experience More ❯
London, England, United Kingdom Hybrid / WFH Options
Albany Growth
This range is provided by Albany Growth. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more. Base pay range Principal Back End Engineer (Ruby/AWS/Postgres/Redis) Hybrid (UK – Remote-first with London office) Albany Growth are partnering with a high-growth UK-based SaaS company … backed by recent investment and now ready to scale their engineering team with 2 senior hires. They are now hiring a PrincipalEngineer to drive backend excellence across a complex, high-availability platform used by global customers. This is a hands-on senior leadership role with significant influence across engineering standards, architecture, and mentorship. You'll work across … to compliance-focused, change-controlled deployments with high DORA metrics (elite-level performance) Continuously improve tooling, observability, and infrastructure to support scalable growth Key Requirements Proven experience as a Principal/Lead/Staff level Engineer, ideally in SaaS or platform environments Expertise in Ruby on Rails and strong understanding of distributed backend systems Experience with infrastructure at More ❯
London, England, United Kingdom Hybrid / WFH Options
Owen Thomas | Pending B Corp™
Principal ADMET Scientist - modelling, ML engineer | Cheminformatics | Series A - Drug discovery B2B Platform | Fully Remote, EU | Base Salary Up to £160,000K, plus early equity+benefits Principal ADMET Scientist - modelling, ML engineer | Cheminformatics | Series A - Drug discovery B2B Platform | Fully Remote, EU | Base Salary Up to £160,000K, plus early equity+benefits 23 hours ago Be among the … features. Direct message the job poster from Owen Thomas | Pending B Corp Co-Founder @ Owen Thomas - Pending B Corp | Scaling teams for all things Data, Cloud & AI/ML Principal ADMET Scientist - modelling, ML engineer | Cheminformatics | Series A - Drug discovery B2B Platform | Fully Remote, EU | Base Salary Up to £160,000K, plus early equity+benefits The Client: A mission … driven technology company operating in the life sciences domain is seeking a Principal Scientist - hands-on ADMET modelling, ML engineer to lead the technical direction for ADMET (Absorption, Distribution, Metabolism, Excretion, and Toxicity) modeling efforts within its drug discovery platform. The organisation enables collaborative model development across partner organisations while maintaining strict data privacy and ownership, using a More ❯
Bath, England, United Kingdom Hybrid / WFH Options
ZipRecruiter
Job Description Principal Bridge Engineer - Highways Industry Location: County Durham/North Yorkshire/West Yorkshire (hybrid working - 2 days from home) A Principal Bridge Engineer is required to join a Building Design Consultancy on a permanent basis. The company is a multi-discipline building design consultancy with a consistent stream of workflow. They offer a … s) and assessments Preparing technical reports, including AIPs, assessment and design reports, specifications, and contract documents Mentoring and developing Engineers and Technicians Conducting site visits as required Requirements: Chartered Engineer with a degree in Civil or Structural Engineering (or equivalent) Significant experience in bridge engineering within a consultancy or Local Authority Experience leading multiple projects and reviewing concept and More ❯
London, England, United Kingdom Hybrid / WFH Options
Owen Thomas | Pending B Corp™
Principal ADMET Scientist - Modelling, ML Engineer | Cheminformatics | Series A - Drug Discovery B2B Platform | Fully Remote, EU | £700-1,200 per day, Outside IR35 | 6-12 months Contract This role is with a mission-driven technology company in the life sciences domain, seeking a hands-on Principal Scientist to lead ADMET modelling efforts within its drug discovery platform. … maintaining strict data privacy using federated data infrastructure. The position involves working at the intersection of machine learning, computational chemistry, and applied research to advance drug discovery models. The Principal Scientist will be the technical authority on ML architecture, experimentation, and strategy, collaborating with leadership and mentoring other engineers and researchers. This role influences technical direction without people management More ❯
London, England, United Kingdom Hybrid / WFH Options
ZipRecruiter
Job Description Principal Data Engineer - Microsoft Gold Partner We are seeking a Principal Consultant to join our client's consulting team. This is a client-facing role, requiring strong technical expertise alongside excellent consulting skills. The successful candidate will have a growth mindset and a proactive approach to identifying opportunities for our clients. Essential Skills & Experience: 5+ More ❯
London, England, United Kingdom Hybrid / WFH Options
Ingérop
Social network you want to login/join with: PRINCIPAL BRIDGE ENGINEER - LONDON, London Client: Location: London, United Kingdom Job Category: Other EU work permit required: Yes Job Reference: 6bcaf5f5ff89 Job Views: 7 Posted: 17.06.2025 Expiry Date: 01.08.2025 Job Description: As a Principal Bridge Engineer, you’ll be designing cutting-edge structures, managing multidisciplinary teams, and … Mentoring junior engineers and supporting their professional development Contributing to business development through proposals and client relationships Collaborating with internal and external teams Qualifications: We seek a technically strong engineer with leadership skills, ready to impact complex projects. Ideally, you will have: A Chartered Civil Engineer qualification with a postgraduate degree in a relevant field Extensive experience in More ❯
Crawley, West Sussex, South East, United Kingdom Hybrid / WFH Options
Circle Group
Principal Consulting Engineer (Rapid7, SentinelOne, AWS) Crawley £80k - £120k Are you an experienced cybersecurity professional ready to lead complex projects and make a tangible impact? We're looking for a Principal Cyber Engineer, with experience in designing and deploying Rapid7 , SentinelOne, (or similar XDR, MDR, SIEM, ) in an AWS environment, for our clients growing team in … and problem-solving abilities. Adaptability to evolving technologies and cross-functional environments. If you are interested in the above role - Click the 'Apply Now' button now for immediate review Principal Rapid7 Engineer, Rapid7 Engineer, Principal Rapid7 Engineer, Cyber Engineer, Cyber Architect, Rapid7, Delinea, SIEM, XDR, Sentinel, Fortinet Circle Recruitment is acting as an Employment More ❯
London, England, United Kingdom Hybrid / WFH Options
Owen Thomas | Pending B Corp™
Principal ADMET Scientist - Modelling, ML Engineer | Cheminformatics | Series A - Drug Discovery B2B Platform | Fully Remote, EU | Base Salary Up to £160,000, plus Early Equity & Benefits 2 days ago | Be among the first 25 applicants Get AI-powered advice on this job and more exclusive features. Direct message the job poster from Owen Thomas | Pending B Corp Overview … A mission-driven technology company in the life sciences sector is seeking a Principal Scientist - hands-on ADMET modelling, ML engineer to lead its ADMET modelling efforts within its drug discovery platform. The organization facilitates collaborative model development across partners while ensuring data privacy and ownership through a federated data infrastructure. This role involves working at the intersection … culture Up to £160,000 base salary Attractive stock options B2B & full-time employee options Flexible hours, 3 hours CET Application If you’re a good fit for the Principal ML Engineer, ADMET in Pharma/BioTech , send us your CV. We’ll contact you if your profile matches. Additional Details Seniority level: Mid-Senior level Employment type More ❯
Belfast, Northern Ireland, United Kingdom Hybrid / WFH Options
Adepta Partners
Principal Platform Engineer Location : Belfast – Hybrid (2 days onsite) Salary : Up to £90,000 + Bonus & Benefits Type : Permanent | Exclusive Opportunity We’re hiring exclusively for a scaling tech company with a clear mission: to empower engineers by investing heavily in Developer Experience (DevEx) . They’re now seeking a Principal Platform Engineer to lead that … mission — designing the tools, environments, and infrastructure that make engineering smoother, faster, and more reliable across the entire organisation. This is a standout role for an engineer who understands that great platforms don’t just run code — they elevate the people writing it. If you're passionate about internal tooling, streamlined workflows, and removing friction for developers, this is … catalogue tooling. Contributions to open-source projects, especially within the CNCF ecosystem. Relevant certifications in AWS and/or Kubernetes. This is a career-defining opportunity for a senior engineer who wants to lead DevEx at scale, creating a fast, intuitive, and reliable developer environment that drives impact across the business. To find out more or apply in confidence More ❯
London, England, United Kingdom Hybrid / WFH Options
Owen Thomas | Pending B Corp™
Principal Machine Learning Engineer, Structural Biology | Pharma/BioTech | Series A - Drug discovery B2B Platform | Fully Remote, EU | £ 850-1200pd, Outside IR35 | 6-12 months Contract Length Principal Machine Learning Engineer, Structural Biology | Pharma/BioTech | Series A - Drug discovery B2B Platform | Fully Remote, EU | £ 850-1200pd, Outside IR35 | 6-12 months Contract Length … features. Direct message the job poster from Owen Thomas | Pending B Corp Co-Founder @ Owen Thomas - Pending B Corp | Scaling teams for all things Data, Cloud & AI/ML Principal Machine Learning Engineer, Structural Biology | Pharma/BioTech | Series A - Drug discovery B2B Platform | Fully Remote, EU | £ 850-1200pd, Outside IR35 | 6-12 months Contract Length The … Client: A leading organization in the drug discovery field is currently looking for a Principal ML Engineer to spearhead the technical direction for their structural biology models. This hands-on, high-impact role offers the opportunity to advance the application of foundational models to complex structural biology challenges. The successful candidate will work closely with the leadership team More ❯
Newbury, England, United Kingdom Hybrid / WFH Options
West Berkshire Council
location_on Location Newbury - Council Offices, Market Street credit_card Salary From £43,693 to £58,886 per annum (Grade KL) work_outline Basis Full Time Job profile for PrincipalEngineer (Asset Management - Highways & Flood Risk) - 00335 PrincipalEngineer (Asset Management - Highways & Flood Risk) - 00335 location_on Newbury - Council Offices, Market Street 10/06/… PrincipalEngineer (Asset Management - Highways & Flood Risk) - 00335 Apply online The job requirements are detailed below. Where applicable the skills, qualifications and memberships required for this job have also been included. Job details Salary From £43,693 to £58,886 per annum (Grade KL) Contractual hours 37 Basis Full Time Package Permanent Job category/type Transport Date … posted 13/05/2025 Job reference REQ00000615 Attachments attachment JD_PS_Principal Engineer.pdf Job description We are recruiting for a principalengineer to play a key role in the management of the highway structure assets across West Berkshire. This senior role will provide you with the opportunity to work on a wide range of highway More ❯
Manchester, England, United Kingdom Hybrid / WFH Options
AJ Bell
AJ Bell Manchester, England, United Kingdom PrincipalEngineer AJ Bell Manchester, England, United Kingdom We are a technology-driven company building high-performing, scalable, and resilient software solutions. Our teams work with a modern tech stack including .NET, MongoDB, AWS, Jenkins, SQL Server, and streaming technologies. We’re looking for a hands-on PrincipalEngineer who … technical excellence across multiple teams. This role is perfect for a technical leader who still enjoys writing code while shaping architecture and mentoring engineers. About the Role As a PrincipalEngineer, you will play a critical role in: Architecting scalable, high-performance systems Coding and reviewing mission-critical features (at-least 60% hands-on) Managing and mentoring Staff … cross-functional teams to align technical solutions with business needs Research and implement AI-driven development tools to boost productivity What We’re Looking For Proven experience as a PrincipalEngineer/Lead Engineer/Software Architect Proven hands-on coding experience with .NET, SQL Server, MongoDB, Angular/NextJS, AWS, and streaming technologies Strong experience in More ❯
City of London, London, United Kingdom Hybrid / WFH Options
83data
Job Title: Principal Data Engineer Location: London, UK – Hybrid (Liverpool Street office) Department: Data & Engineering Reports To: Head of Data Science Employment Type: Permanent A leading global payments and fintech platform , empowering clients to innovate and scale. Their mission is to create frictionless, secure, and intelligent payment solutions that unlock value across banking, financial services, and digital assets. … As they continue to scale their data infrastructure , they’re seeking a seasoned Principal Data Engineer to help design, build, and optimise a modern data platform, with a focus on orchestration (Airflow), scalable data warehouse architecture, and high-performance pipelines. The ideal candidate will bring both technical depth and strategic thinking , with the ability to communicate effectively across … learning and technical excellence. Ensure compliance with data security , privacy, and regulatory standards (e.g., PCI-DSS , GDPR ). Essential: 7+ years in Data Engineering, with 2+ years in a Principal or Lead role. Proven experience designing and delivering enterprise data strategies . Exceptional communication and stakeholder management skills. Expertise in enterprise-grade data warehouses (Snowflake, BigQuery, Redshift). Hands More ❯
Job Title: Principal Data Engineer Location: London, UK – Hybrid (Liverpool Street office) Department: Data & Engineering Reports To: Head of Data Science Employment Type: Permanent A leading global payments and fintech platform , empowering clients to innovate and scale. Their mission is to create frictionless, secure, and intelligent payment solutions that unlock value across banking, financial services, and digital assets. … As they continue to scale their data infrastructure , they’re seeking a seasoned Principal Data Engineer to help design, build, and optimise a modern data platform, with a focus on orchestration (Airflow), scalable data warehouse architecture, and high-performance pipelines. The ideal candidate will bring both technical depth and strategic thinking , with the ability to communicate effectively across … learning and technical excellence. Ensure compliance with data security , privacy, and regulatory standards (e.g., PCI-DSS , GDPR ). Essential: 7+ years in Data Engineering, with 2+ years in a Principal or Lead role. Proven experience designing and delivering enterprise data strategies . Exceptional communication and stakeholder management skills. Expertise in enterprise-grade data warehouses (Snowflake, BigQuery, Redshift). Hands More ❯
South East London, England, United Kingdom Hybrid / WFH Options
83data
Job Title: Principal Data Engineer Location: London, UK – Hybrid (Liverpool Street office) Department: Data & Engineering Reports To: Head of Data Science Employment Type: Permanent A leading global payments and fintech platform , empowering clients to innovate and scale. Their mission is to create frictionless, secure, and intelligent payment solutions that unlock value across banking, financial services, and digital assets. … As they continue to scale their data infrastructure , they’re seeking a seasoned Principal Data Engineer to help design, build, and optimise a modern data platform, with a focus on orchestration (Airflow), scalable data warehouse architecture, and high-performance pipelines. The ideal candidate will bring both technical depth and strategic thinking , with the ability to communicate effectively across … learning and technical excellence. Ensure compliance with data security , privacy, and regulatory standards (e.g., PCI-DSS , GDPR ). Essential: 7+ years in Data Engineering, with 2+ years in a Principal or Lead role. Proven experience designing and delivering enterprise data strategies . Exceptional communication and stakeholder management skills. Expertise in enterprise-grade data warehouses (Snowflake, BigQuery, Redshift). Hands More ❯
Edinburgh, Scotland, United Kingdom Hybrid / WFH Options
Leonardo
Job Title: Principal/Lead Firmware Engineer, Edinburgh Client: Leonardo Location: Edinburgh, United Kingdom Job Category: Other EU work permit required: Yes Job Reference: 44d68075e9d5 Job Views: 3 Posted: 02.06.2025 Expiry Date: 17.07.2025 Job Description: The Electronics Function in Edinburgh is seeking a dynamic Lead Firmware Engineer to develop complex firmware designs for Radars and Electro Optics More ❯
London, England, United Kingdom Hybrid / WFH Options
Photon
Social network you want to login/join with: PrincipalEngineer - Mobile - London, London col-narrow-left Client: Photon Location: London, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Reference: 7597b3016969 Job Views: 9 Posted: 15.06.2025 Expiry Date: 30.07.2025 col-wide Job Description: Position Overview: An exciting opportunity for a forward-thinking … full stack engineer who thrives on producing customer facing digital experiences. You will join a leading name in the food and beverage market with 500+ stores across the world. As a Mobile PrincipalEngineer, you will be responsible for driving technical excellence and innovation within your mobile apps team. Experience in backend APIs is an added advantage. … them to be included on the product roadmap and development processes Champion continuous improvement, performance optimisation, and security throughout the development lifecycle Skills: Proven experience as a hands-on engineer with proficiency in Swift or Kotlin Hands on experience in backend API development using will be an advantage Experience in technical decision making guiding the team to propose solutions More ❯