Our client is a major defence and aerospace company.Date Posted:2026-08-13Country:United KingdomLocation:Gloucester, South GloucestershirePosition Role Type:Onsite...Read More>>.

Our client is a global aerospace, defence and security company.Job Description:Salary Range: £54,000 - £70,000Our client operates a grade-based salary framework with broad bands. The salary range show...Read More>>.

Our client is a global credit ratings and risk analytics firm.Skills and Competencies12+ years of software engineering experience, including 5+ years leading engineering teams and delivering complex, large-scale...Read More>>.

Overview In this leadership role, you blend hands-on coding with strategic software leadership to guide a product squad and set high‑level architecture. You will drive best practices, manage technical debt, and align delivery with other P...Read More>>.

Overview In this role you will lead architecture and development of high-performance, secure communication systems. You will mentor engineers and drive best practices across the software lifecycle, collaborating with the Software Team to en...Read More>>.

Overview As a Principal Software Engineer in Public Markets Technology, you will help build an AI-enabled investment platform by delivering scalable Python solutions on a cloud-first stack. You’ll collaborate with portfolio managers, data...Read More>>.

Overview In this role you will help evolve ThousandEyes’ technologies within Cisco’s broader portfolio, shipping new features that improve digital experience across networks. You will collaborate with product and engineering leaders to...Read More>>.

Overview As a Principal Software Engineer you will provide technical leadership across the technology function, shaping architectures and engineering standards for scalable, secure enterprise applications. You’ll mentor engineers, partner...Read More>>.

Title: Principal Software EngineerRole: Distributed Systems & CommunicationsLocation: CambridgeshireSalary: £60-£80kPlatform Recruitment has partnered with an innovative technology company developing mission-critical syste...Read More>>.

Overview As a senior engineering leader at Very, you shape how we build scalable, customer‑facing software and cloud platforms. You’ll influence multiple squads, champion engineering standards, and drive architectural decisions with pro...Read More>>.

Overview In this role you own and shape the technical strategy for a software vertical, aligning with cross‑functional teams to influence enterprise-wide architecture and practices. You lead high-impact technical work, mentor engineers, a...Read More>>.

Overview As Principal Engineer, you will shape the architecture and direction of our API platform, guiding scalable cloud-native systems and event-driven services. You will work with cross-functional squads to solve distributed systems chal...Read More>>.

Overview As a Principal Software Engineer in Mastercard’s Operations Automation Program, you lead automation and infrastructure management across on-premise and cloud environments. You’ll shape scalable DevOps across global engineering...Read More>>.

Overview In this role, you will shape the next generation of software features for defence systems. You join a world-class team focused on delivering market-leading solutions in Integrated Sensors & Protection, driving innovation across com...Read More>>.

Overview In this role you will lead software development for advanced flight control and actuation systems, shaping architecture and ensuring safety-critical compliance. You will mentor teams and collaborate with hardware and test engineers...Read More>>.

Overview As Principal Software Engineer in the eCommerce Platform Delivery team, you lead and shape technical strategy across multiple squads to deliver robust, secure, and scalable systems. You guide architecture and engineering standards,...Read More>>.

Overview As Principal Engineer, you will lead the strategy and delivery of mission-critical AI platforms within Moody's Digital Content and Innovation team. You will shepherd multi-team efforts from prototype to production, shaping scalable...Read More>>.

Overview In this role, you accelerate secure, high-quality software delivery across Leonardo’s defence and security programmes. You will help shape and evolve the enterprise DevSecOps capability to enable teams to deliver features rapidly...Read More>>.

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Overview In this role you will own the end-to-end software lifecycle for secure, mission-critical products in a defence environment. You’ll lead embedded and/or application software development, shaping architecture with cross-functional...Read More>>.

Overview As a Principal Software Engineer, you will lead the design and delivery of embedded software for safety-critical systems in aerospace. You will shape architectures, drive integration and verification, and mentor engineers to ensure...Read More>>.

Overview As Principal AI Engineer you lead the embedded Innovation Squad, driving AI architecture and delivery from discovery to production. You will harden prototypes, design reusable agentic AI patterns, and guide integration with enterpr...Read More>>.

Overview As a Principal Software Engineer, you will lead the development of safety-critical airborne software in a multidisciplinary team. You will influence engineering decisions and shape robust embedded solutions for Zephyr-based stratos...Read More>>.

Overview As Principal Software Engineer, you will provide technical leadership for a new Electron- and Chromium-based desktop platform enabling Autodesk web apps. You will define platform architecture, lead core engineering across Electron,...Read More>>.

Overview In this role you lead technical direction for Vitality’s Engineering function, shaping standards and architecture across enterprise platforms and customer-facing solutions. You work across multiple teams with senior stakeholders...Read More>>.

Overview As Principal Software Engineer, you will architect and build cloud-native solutions across Mobile, Web, and Tooling to advance medical insights and predictive models. You may lead a small team from day one or focus on hands-on deli...Read More>>.

Meet the TeamCisco ThousandEyes is a Digital Experience Assurance platform that empowers organizations to deliver flawless digital experiences across every network - even the ones they don't own. Powered by AI and an unmatc...Read More>>.

Principal Software Engineer - Simple MachinesHybrid · Full-time · London, UKAbout Simple MachinesSimple Machines is a leading independent boutique technology firm with a global footprint across London, Poland, Sydney...Read More>>.

Make The Connection.Vix Technology is a global leader in providing innovative solutions for public transit, believing that accessibility should be a standard. With over 35 years of experience and systems deployed in more than 200 citie...Read More>>.

Location: Luton (Hybrid: 4 days on-site, 1 day remote) Contract: 12 months IR35: Inside IR35 Security Clearance: Full UK SC required upon application Day Rate: Competitive (please enqu...Read More>>.

At Fred. Olsen Ltd., we empower people to make a difference. Whether shaping renewable energy’s future or delivering industry-leading logistics, our team thrives on innovation and collaboration.Established in 1963, Fred. Olsen Ltd focus...Read More>>.

Inside IR35Hybrid - LondonRole Overview:We are seeking an exceptional Senior / Principal Java Developer with extensive front-to-back trading systems expertise to join our delivery team on a high-profile eng...Read More>>.

Join to apply for the Principal Software Engineer role at Lloyds Banking Group. Base pay range This range is provided by Lloyds Banking Group. Your actual pay will be based on your skills and experience — talk with...Read More>>.

Job Description Principal Software Engineer Full Time Location - Heybridge At Rolls-Royce we are proud to be a business that has truly helped to shape the modern world and are committed to always being a force f...Read More>>.

Reading - Hybrid (ideally 2/3 days per week)Albany Growth are partnered with an established software business going through a major multi-year technology transformation, rebuilding and modernising a large legacy product estate onto a new...Read More>>.

We are The Citation Group - a collective of businesses dedicated to supporting small and medium-sized enterprises across a range of essential services. We know that running a business means juggling a lot. Our mission is to ease these pressures by...Read More>>.

Principal Software Engineer / Principal AI EngineerAre you excited about building intelligent systems powered by innovative AI technologies?Do you enjoy creating solutions that turn complex data into impactful outcomes?A...Read More>>.

Principal Software Engineer - Simple MachinesHybrid · Full-time · London, UKAbout Simple MachinesSimple Machines is a leading independent boutique technology firm with a global footprint across London, Poland, Sydn...Read More>>.

Principal Software EngineerArm is redefining what is possible in cloud and data center computing. Our Neoverse platforms are helping power the next generation of infrastructure – combining advanced silicon with the system soft...Read More>>.

Principal Software Engineer – Agentic EngineeringUsing AI and agentic engineering to modernise complex legacy software, and fundamentally change how engineering teams build software.This isn't a traditional software eng...Read More>>.

ZoomInfo is where careers accelerate. We move fast, think boldly, and empower you to do the best work of your life. You’ll be surrounded by teammates who care deeply, challenge each other, and celebrate wins. With tools that amplify your impact...Read More>>.

How you'll make a differenceAs a Principal Engineer, you will make a significant contribution to the successful delivery of highway development projects across South Gloucestershire. Acting as a specialist adviser o...Read More>>.

Bring more to life. At IDBS, one of Danaher’s 15+ operating companies, our work saves lives—and we’re all united by a shared commitment to innovate for tangible impact. IDBS helps BioPharma organizations unlock the potential of AI/ML to impr...Read More>>.

Principal Software Engineer Based in Bristol Salary up to 70,000 + Bonus + Excellent Benefits Want to work on complex software that sits at the heart of advanced defence systems? We're looking for an experienced Softw...Read More>>.

The Role We’re looking for experienced Principal Software Engineers who enjoy solving complex technical challenges, building scalable systems, and helping engineering teams deliver high-quality software in production environme...Read More>>.

The digital backbone of the renewable energy world Our team combines deep domain knowledge of the renewable energy industry, with cutting-edge software engineering and operational delivery specialists with office spaces in Cambridge an...Read More>>.

Salary: £95,000 - 95,000 per yearRequirements:We require candidates to be willing and eligible to hold SC and eDV clearance.We are looking for experience in core software engineering.Experienc...Read More>>.

Job Description: Job DescriptionAre you a Real Time Embedded Software Engineer ready to take the next step on your career journey. If you are looking at opportunities for progression, to learn and grow within a supportive enviro...Read More>>.

Salary: £100,000 - 100,000 per year Requirements Formal training or certification (e.g., BSc, CKAD, Google Associate Cloud Engineer, or AWS Certified Solutions Architect). Expert-level administration of a maj...Read More>>.

Rolls-Royce is seeking a Principal Software Engineer in Heybridge to deliver on-time software components within the Software Systems Capability function. You will decompose designs, develop tests, and ensure the software meets allocated requiremen...Read More>>.