City of London, London, United Kingdom Hybrid / WFH Options
X4 Technology
Role: Principal Data Engineer (Databricks) Industry: Commodities Location: London (hybrid, 3 days per week) Rate: £800-900/d (inside IR35) Contract: 6 months rolling (multi-year scope) X4 Technology are partnered with a global commodity trading firm in central London to hire a contract Principal Data Engineer (Databricks). You'll take a lead role … in a flagship transformation programme that places Databricks at the centre of how trading data is standardised, governed and used to drive sharper commercial decisions globally. Responsibilities of the Principal Data Engineer (Databricks) Design and architect end-to-end data platforms and modernised data environments Lead the shift toward data-driven thinking across both IT and business stakeholders … and problem management processes Champion best practices, community development (CoE/CoP), and continuous improvement Act as a visible thought leader - delivering technical guidance and mentorship Requirements for the Principal Data Engineer (Databricks) Deep hands-on experience with Databricks, Delta Live Tables (DLT), data modelling, data ingestion & integration Strong proficiency across Data Factory, SQL DB, Synapse, Stream Analytics More ❯
Role: Principal Data Engineer (Databricks) Industry: Commodities Location: London (hybrid, 3 days per week) Rate: £800-900/d (inside IR35) Contract: 6 months rolling (multi-year scope) X4 Technology are partnered with a global commodity trading firm in central London to hire a contract Principal Data Engineer (Databricks). You'll take a lead role … in a flagship transformation programme that places Databricks at the centre of how trading data is standardised, governed and used to drive sharper commercial decisions globally. Responsibilities of the Principal Data Engineer (Databricks) Design and architect end-to-end data platforms and modernised data environments Lead the shift toward data-driven thinking across both IT and business stakeholders … and problem management processes Champion best practices, community development (CoE/CoP), and continuous improvement Act as a visible thought leader - delivering technical guidance and mentorship Requirements for the Principal Data Engineer (Databricks) Deep hands-on experience with Databricks, Delta Live Tables (DLT), data modelling, data ingestion & integration Strong proficiency across Data Factory, SQL DB, Synapse, Stream Analytics More ❯
london, south east england, united kingdom Hybrid / WFH Options
X4 Technology
Role: Principal Data Engineer (Databricks) Industry: Commodities Location: London (hybrid, 3 days per week) Rate: £800-900/d (inside IR35) Contract: 6 months rolling (multi-year scope) X4 Technology are partnered with a global commodity trading firm in central London to hire a contract Principal Data Engineer (Databricks). You'll take a lead role … in a flagship transformation programme that places Databricks at the centre of how trading data is standardised, governed and used to drive sharper commercial decisions globally. Responsibilities of the Principal Data Engineer (Databricks) Design and architect end-to-end data platforms and modernised data environments Lead the shift toward data-driven thinking across both IT and business stakeholders … and problem management processes Champion best practices, community development (CoE/CoP), and continuous improvement Act as a visible thought leader - delivering technical guidance and mentorship Requirements for the Principal Data Engineer (Databricks) Deep hands-on experience with Databricks, Delta Live Tables (DLT), data modelling, data ingestion & integration Strong proficiency across Data Factory, SQL DB, Synapse, Stream Analytics More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
X4 Technology
Role: Principal Data Engineer (Databricks) Industry: Commodities Location: London (hybrid, 3 days per week) Rate: £800-900/d (inside IR35) Contract: 6 months rolling (multi-year scope) X4 Technology are partnered with a global commodity trading firm in central London to hire a contract Principal Data Engineer (Databricks). You'll take a lead role … in a flagship transformation programme that places Databricks at the centre of how trading data is standardised, governed and used to drive sharper commercial decisions globally. Responsibilities of the Principal Data Engineer (Databricks) Design and architect end-to-end data platforms and modernised data environments Lead the shift toward data-driven thinking across both IT and business stakeholders … and problem management processes Champion best practices, community development (CoE/CoP), and continuous improvement Act as a visible thought leader - delivering technical guidance and mentorship Requirements for the Principal Data Engineer (Databricks) Deep hands-on experience with Databricks, Delta Live Tables (DLT), data modelling, data ingestion & integration Strong proficiency across Data Factory, SQL DB, Synapse, Stream Analytics More ❯
slough, south east england, united kingdom Hybrid / WFH Options
X4 Technology
Role: Principal Data Engineer (Databricks) Industry: Commodities Location: London (hybrid, 3 days per week) Rate: £800-900/d (inside IR35) Contract: 6 months rolling (multi-year scope) X4 Technology are partnered with a global commodity trading firm in central London to hire a contract Principal Data Engineer (Databricks). You'll take a lead role … in a flagship transformation programme that places Databricks at the centre of how trading data is standardised, governed and used to drive sharper commercial decisions globally. Responsibilities of the Principal Data Engineer (Databricks) Design and architect end-to-end data platforms and modernised data environments Lead the shift toward data-driven thinking across both IT and business stakeholders … and problem management processes Champion best practices, community development (CoE/CoP), and continuous improvement Act as a visible thought leader - delivering technical guidance and mentorship Requirements for the Principal Data Engineer (Databricks) Deep hands-on experience with Databricks, Delta Live Tables (DLT), data modelling, data ingestion & integration Strong proficiency across Data Factory, SQL DB, Synapse, Stream Analytics More ❯
Oxfordshire, Milton Hill, United Kingdom Hybrid / WFH Options
Mars Recruitment
Principal Software Engineer | C++ | Python | Linux Oxfordshire | Hybrid £65,000pa plus benefits: Do you enjoy technically leading and mentoring a team of Software Engineers utilising C++ & Python on Linux, passing on your knowledge and experience to help nurture and develop future Engineers? If so, this Principal Software Engineer role will be perfect for you. Our client … has seen rapid growth over the last few years, and to help develop their talented team of Software Engineers, they now seek a Principal Software Engineer who can technically lead, mentor and develop during an exciting period of innovation. On a day-to-day basis you will develop and support software applications and drivers for a range of … products. You will be technically responsible for ensuring projects meet internal and external customer requirements and completing concept designs through to production. The successful Principal Software Engineer will need the following qualification, experience and skills: A degree in a Software Engineering, Mathematics or Science/Materials subject Experience in ARM based software developments using C/C++ Experience More ❯
Manchester, Lancashire, England, United Kingdom Hybrid / WFH Options
Searchability
Principal Software Engineer - .NET/C#/AWS/CI/CD .NET, C#, AWS, JavaScript, DevOps, Agile, CI/CD Salary up to £75-80k + Bonus scheme Hybrid - 3 days a week on-site (Greater Manchester) For more information, please email me directly at or call on/Who We Are: We're a fast … self-organising squads, our teams are empowered to design, build, and deliver scalable, high-performance systems that shape the future of our business. We're now looking for a Principal Software Engineer to take a leading role in guiding our engineering direction, mentoring talented developers, and driving the adoption of modern technologies and best practices. Who We're … Seeking: We're seeking a Principal Software Engineer with deep expertise in .NET, C# and AWS who will play a key part in architectural decision-making, helping teams balance innovation and reliability while championing best practices. You'll work closely with other Principal Engineers, Product Owners, and cross-functional teams to deliver robust, maintainable, and scalable solutions More ❯
Greater Manchester, England, United Kingdom Hybrid / WFH Options
Searchability®
Principal Software Engineer – .NET/C#/AWS/CI/CD .NET, C#, AWS, JavaScript, DevOps, Agile, CI/CD Salary up to £75-80k + Bonus scheme Hybrid – 3 days a week on-site (Greater Manchester) For more information, please email me directly at Patrick.doyle@searchability.com or call on 01244 567 920/… self-organising squads, our teams are empowered to design, build, and deliver scalable, high-performance systems that shape the future of our business. We’re now looking for a Principal Software Engineer to take a leading role in guiding our engineering direction, mentoring talented developers, and driving the adoption of modern technologies and best practices. Who We’re … Seeking: We’re seeking a Principal Software Engineer with deep expertise in .NET, C# and AWS who will play a key part in architectural decision-making, helping teams balance innovation and reliability while championing best practices. You’ll work closely with other Principal Engineers, Product Owners, and cross-functional teams to deliver robust, maintainable, and scalable solutions More ❯
Nottingham, Nottinghamshire, England, United Kingdom Hybrid / WFH Options
Digital Waffle
Principal SecOps Engineer - Hybrid - Nottinghamshire - Up to £75000 + Bonus We're seeking an experienced Principal SecOps Engineer to take a leading role in strengthening our clients' security operations. This is a hands-on, strategic position within the Technical Operations team, where you'll set the direction for security practices, guide incident response, and support the … Healthcare cash plan, company pension, life assurance, and recognition schemes Flexible hybrid working model, with ongoing training and career development A vibrant culture with regular team socials and events Principal SecOps Engineer - Hybrid - Nottinghamshire - Up to £75000 + Bonus More ❯
Bracknell, Bracknell Forest, Berkshire, United Kingdom Hybrid / WFH Options
Comoro
Principal Sales Engineer Location: Remote (UK-based) – with travel to customer sites Salary: circa £140k +20% bonus + car allowance + extensive benefits package (DV cleared) Clearance Requirement: DV (Developed Vetting) or SC if willing to go through DV process Our client is at the forefront of digital transformation, supporting the world’s most essential organisations through their … visibility and insight at an unparalleled scale they help clients solve problems faster, secure what matters, and drive continuous innovation across their digital ecosystems. We are now seeking a Principal Sales Engineer to support the growth of UK public sector accounts. This is a remote, client-facing role for a highly technical and experienced presales professional with a … with tools like Wireshark, Zeek, or similar platforms. Awareness of cybersecurity frameworks and best practices (e.g., NIST, ISO 27001) and how they apply to network assurance. Role & Responsibilities As Principal Sales Engineer, you will play a vital role in driving revenue by delivering technical presales support, demonstrating product value, and shaping best-fit solutions. Reporting to the Regional More ❯
Employment Type: Permanent
Salary: £130000 - £140000/annum 20% Bonus and Benefits
Leeds, England, United Kingdom Hybrid / WFH Options
WRK digital
Principal Software Engineer & Tech Lead 📍 Leeds HQ (Flexible, Hybrid working) 💡AI-Driven Solutions & Digital Transformation Are you a Principal-level engineer who wants to shape the future of AI-enabled digital products? WRK digital is partnering with Parallax — a digital transformation consultancy pushing the boundaries of what AI can do for enterprise clients — to find an … flexible working, gym/streaming subsidies • The opportunity to work on AI projects that matter Ready to lead the future of AI-Driven digital products? If you are a Principal or senior engineer looking for a role where you can blend strategic thinking, client consultancy, and hands-on engineering — this is it. Please apply now or contact James More ❯
bradford, yorkshire and the humber, united kingdom Hybrid / WFH Options
WRK digital
Principal Software Engineer & Tech Lead 📍 Leeds HQ (Flexible, Hybrid working) 💡AI-Driven Solutions & Digital Transformation Are you a Principal-level engineer who wants to shape the future of AI-enabled digital products? WRK digital is partnering with Parallax — a digital transformation consultancy pushing the boundaries of what AI can do for enterprise clients — to find an … flexible working, gym/streaming subsidies • The opportunity to work on AI projects that matter Ready to lead the future of AI-Driven digital products? If you are a Principal or senior engineer looking for a role where you can blend strategic thinking, client consultancy, and hands-on engineering — this is it. Please apply now or contact James More ❯
Job Title: Principal Platform Engineer Location: Remote (UK-based) Salary: c.£73,000 Why Apply? Play a pivotal role in delivering cutting-edge cloud engineering and software development practices across a high-impact public sector organisation. As a Principal Platform Engineer, you'll shape cloud strategy, lead modern engineering approaches, and mentor others, all within a … values-driven environment. This is a fantastic opportunity to drive meaningful change, influence architectural decisions, and work with emerging technologies like AI, CI/CD, and Infrastructure as Code. Principal Platform Engineer Responsibilities Lead the design, build, testing and support of secure, scalable Azure-based cloud services. Define and promote best practices in automation, CI/CD, and … technologies, including AI and advanced analytics. Oversee engineering governance and technical standards across transformation and operational projects. Mentor engineers and ensure alignment with technical standards, security, and delivery objectives. Principal Platform Engineer Requirements Extensive experience in cloud engineering and modern software development. Advanced knowledge of Azure services across IaaS, PaaS, and SaaS models. Proficiency in Infrastructure as Code More ❯
Job Title: Principal Platform Engineer Location: Remote (UK-based) Salary: c.£73,000 Why Apply? Play a pivotal role in delivering cutting-edge cloud engineering and software development practices across a high-impact public sector organisation. As a Principal Platform Engineer, you'll shape cloud strategy, lead modern engineering approaches, and mentor others, all within a … values-driven environment. This is a fantastic opportunity to drive meaningful change, influence architectural decisions, and work with emerging technologies like AI, CI/CD, and Infrastructure as Code. Principal Platform Engineer Responsibilities Lead the design, build, testing and support of secure, scalable Azure-based cloud services. Define and promote best practices in automation, CI/CD, and … technologies, including AI and advanced analytics. Oversee engineering governance and technical standards across transformation and operational projects. Mentor engineers and ensure alignment with technical standards, security, and delivery objectives. Principal Platform Engineer Requirements Extensive experience in cloud engineering and modern software development. Advanced knowledge of Azure services across IaaS, PaaS, and SaaS models. Proficiency in Infrastructure as Code More ❯
Barrow-in-furness, Cumbria, United Kingdom Hybrid / WFH Options
BAE Systems
Job Title: PrincipalEngineer - Systems Engineering (Requirements & Acceptance) Location: Barrow-In-Furness (Hybrid - 2 days on site per fortnight) - We offer a range of hybrid and flexible working arrangements - please speak to your recruiter about the options for this particular role Salary: From £50,000+ depending on experience What you'll be doing: Generate and assure consistency within … lifestyle benefits, including a green car scheme, private health plans and shopping discounts - you may also be eligible for an annual incentive. The SSNA CCI Governance Team: As a PrincipalEngineer - Systems Engineering you will be working as part of the Centralised C&I Governance Team, responsible for developing the process, procedure and providing assurance for the next More ❯
Cheltenham, England, United Kingdom Hybrid / WFH Options
Searchability NS&D
Principal Software Engineer – National Security - SC Clearance Role: Principal Software Engineer Location: Cheltenham - Hybrid Work Clearance: SC Cleared/Eligible for SC Salary: £75,000 - £95,000 About the Role Searchability NS&D is recruiting a Principal Software Engineers to join an Agile delivery team supporting a range of complex and high-impact Central Government … professional development Social: Regular team get-togethers, summer parties, and annual company away-days Onsite Allowances: Expenses provided for lunch and refreshments Apply If you’re an ambitious Software Engineer looking to apply your skills to impactful, mission-focused projects, we’d love to hear from you. #Java #AWS #React #JavaScript #TypeScript #Kubernetes #Docker #SC #SCCleared #FullStack More ❯
gloucester, south west england, united kingdom Hybrid / WFH Options
Searchability NS&D
Principal Software Engineer – National Security - SC Clearance Role: Principal Software Engineer Location: Cheltenham - Hybrid Work Clearance: SC Cleared/Eligible for SC Salary: £75,000 - £95,000 About the Role Searchability NS&D is recruiting a Principal Software Engineers to join an Agile delivery team supporting a range of complex and high-impact Central Government … professional development Social: Regular team get-togethers, summer parties, and annual company away-days Onsite Allowances: Expenses provided for lunch and refreshments Apply If you’re an ambitious Software Engineer looking to apply your skills to impactful, mission-focused projects, we’d love to hear from you. #Java #AWS #React #JavaScript #TypeScript #Kubernetes #Docker #SC #SCCleared #FullStack More ❯
London, England, United Kingdom Hybrid / WFH Options
Client Server
Principal Platform Engineer London/WFH to £150k Are you a technologist with start-up experience and a first class education looking for a new opportunity? You could be joining a small Fintech start-up run by small, successful and proven team of finance technology entrepreneurs, backed by Silicon Valley investors, as they build out the product, currently … in stealth mode. As a Principal Platform Engineer you'll have an impactful role with lots of influence. Initially you'll assess the current tech set up based on GCP, Python, TypeScript, PostgreSQL and Terraform; establish the production environment and extend the platform to enable scalability. You'll collaborate closely with the CTO and Lead Software Engineer … of Technology. Location/WFH: You'll be based in Central London, with flexibility to work from home twice a week. About you: You have experience in a similar Principal Platform Engineer role within start-up/scale-up environments with strong commercial acumen You have achieved a 2.1 or above BSc from a well renowned top world More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
Principal Platform Engineer London/WFH to £150k Are you a technologist with start-up experience and a first class education looking for a new opportunity? You could be joining a small Fintech start-up run by small, successful and proven team of finance technology entrepreneurs, backed by Silicon Valley investors, as they build out the product, currently … in stealth mode. As a Principal Platform Engineer you'll have an impactful role with lots of influence. Initially you'll assess the current tech set up based on GCP, Python, TypeScript, PostgreSQL and Terraform; establish the production environment and extend the platform to enable scalability. You'll collaborate closely with the CTO and Lead Software Engineer … of Technology. Location/WFH: You'll be based in Central London, with flexibility to work from home twice a week. About you: You have experience in a similar Principal Platform Engineer role within start-up/scale-up environments with strong commercial acumen You have achieved a 2.1 or above BSc from a well renowned top world More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Client Server
Principal Platform Engineer London/WFH to £150k Are you a technologist with start-up experience and a first class education looking for a new opportunity? You could be joining a small Fintech start-up run by small, successful and proven team of finance technology entrepreneurs, backed by Silicon Valley investors, as they build out the product, currently … in stealth mode. As a Principal Platform Engineer you'll have an impactful role with lots of influence. Initially you'll assess the current tech set up based on GCP, Python, TypeScript, PostgreSQL and Terraform; establish the production environment and extend the platform to enable scalability. You'll collaborate closely with the CTO and Lead Software Engineer … of Technology. Location/WFH: You'll be based in Central London, with flexibility to work from home twice a week. About you: You have experience in a similar Principal Platform Engineer role within start-up/scale-up environments with strong commercial acumen You have achieved a 2.1 or above BSc from a well renowned top world More ❯
Principal Software Engineer – Full Stack (Java/React) Level: Senior/Principal - £80,000–£95,000 Location: UK-wide | Hybrid (Client site travel as required) Function: Full Stack Development | Agile Delivery | Technical Leadership Industry: Consulting | Public Sector | Digital Transformation Base office: Manchester, Bristol, Cheltenham, or Plymouth Lead software excellence. Deliver strategic impact. Join a specialist UK software … consultancy delivering high-impact software solutions for public sector clients. They are seeking Principal Software Engineers to lead teams, shape delivery strategy, and drive innovation across government projects. About the Role As a Principal Software Engineer, you will lead multiple teams, combining hands-on full stack development with technical leadership and client engagement. You will ensure the More ❯
Manchester, Lancashire, England, United Kingdom Hybrid / WFH Options
Robert Walters
delivery of complex programmes and risk management. Due to continued growth and acquisition, they are now keen to expand their cyber security offering and will be appointing an experienced Principal Cyber Security Engineer, to join their UK cyber team. This role will pay a range up to £90,000 plus benefits with a home-based working model. As … an experienced Principal Cyber Security Engineer, you will design, implement and manage security measures to protect the Azure & M365 estates. Principal Cyber Security Engineer: Duties Implement/Manage security measures to protect Azure, M365, Cloud Infrastructure & Data Deep knowledge of Azure & M365 security services Ensure security of cloud infrastructure Identify & implement automation opportunities Coordinate/Manage … engineering projects Design/Develop/Maintain security architecture Mentor the engineering function, provide technical leadership Principal Cyber Security Engineer: Duties Proven experience with Azure & M365 security tools and technologies Deep knowledge of security frameworks and standards (NIST, CIS, ISO27001) Knowledge of scripting & automation tools (PowerShell, Azure CLI, Azure Logic Apps) Principal Cyber Security Engineer: Relevant More ❯
Birmingham, West Midlands, England, United Kingdom Hybrid / WFH Options
Robert Walters
delivery of complex programmes and risk management. Due to continued growth and acquisition, they are now keen to expand their cyber security offering and will be appointing an experienced Principal Cyber Security Engineer, to join their UK cyber team. This role will pay a range up to £90,000 plus benefits with a home-based working model. As … an experienced Principal Cyber Security Engineer, you will design, implement and manage security measures to protect the Azure & M365 estates. Principal Cyber Security Engineer: Duties Implement/Manage security measures to protect Azure, M365, Cloud Infrastructure & Data Deep knowledge of Azure & M365 security services Ensure security of cloud infrastructure Identify & implement automation opportunities Coordinate/Manage … engineering projects Design/Develop/Maintain security architecture Mentor the engineering function, provide technical leadership Principal Cyber Security Engineer: Duties Proven experience with Azure & M365 security tools and technologies Deep knowledge of security frameworks and standards (NIST, CIS, ISO27001) Knowledge of scripting & automation tools (PowerShell, Azure CLI, Azure Logic Apps) Principal Cyber Security Engineer: Relevant More ❯
Principal Software Engineer Cloud Engineering Scale-up c£100k North Scout are partnered with a fast-growing cloud engineering business that’s doubled revenues, expanded its technical team, and earned a strong reputation for delivering complex cloud programmes with pace and precision. They’re looking for a Principal Software Engineer to take a leading role across … person to earn up to £100k with a strong package which includes stock options, private healthcare and loads of smaller benefits. If you’re a technically strong, people-focused engineer who enjoys leading from the front and shaping modern cloud solutions, we’d love to hear from you. More ❯
Principal Software Engineer Cloud Engineering Scale-up c£100k Like the look of this opportunity Make sure to apply fast, as a high volume of applications is expected Scroll down to read the complete job description. North Scout are partnered with a fast-growing cloud engineering business that's doubled revenues, expanded its technical team, and earned a … strong reputation for delivering complex cloud programmes with pace and precision. They're looking for a Principal Software Engineer to take a leading role across architecture, design and delivery. This is a hands-on role where you'll guide engineers, influence solutions, and act as a trusted advisor on client projects. You'll help teams unblock challenges, maintain … person to earn up to £100k with a strong package which includes stock options, private healthcare and loads of smaller benefits. If you're a technically strong, people-focused engineer who enjoys leading from the front and shaping modern cloud solutions, we'd love to hear from you. More ❯