1 to 25 of 29 Principal Software Engineer Jobs in the UK

Principal Software Engineer (Contract) - Naval Radar BAE Systems (Defence Solutions) | Cowes, Isle of Wight | 6 months | Inside IR35 BAE Systems (Defence Solutions) is seeking an experienced Principal Software Engineer to support the development, maintenance and enhancement of advanced naval radar systems in service with … Royal Navy . Based full-time onsite in Cowes , you'll provide technical leadership across the software lifecycle, working within a large, established engineering environment. Key details Location: Cowes, Isle of Wight (full-time onsite) Contract length: 6 months initially IR35: Inside IR35 Rate: £54.57/hour PAYE ...

Principal Software Engineer (Contract) - Naval Radar BAE Systems (Defence Solutions) | Cowes, Isle of Wight | 6 months | Inside IR35 BAE Systems (Defence Solutions) is seeking an experienced Principal Software Engineer to support the development, maintenance and enhancement of advanced naval radar systems in service with … Royal Navy . Based full-time onsite in Cowes , you'll provide technical leadership across the software lifecycle, working within a large, established engineering environment. Key details Location: Cowes, Isle of Wight (full-time onsite) Contract length: 6 months initially IR35: Inside IR35 Rate: £54.57/hour PAYE ...

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 Software Engineer with strong … distributed systems experience to help shape the architecture, design and evolution of mission-critical software used within complex command and control environments. This is not a coding factory role. You'll influence software architecture, drive the development of core communications and data models, support system-level design decisions ...

PRINCIPAL SOFTWARE ENGINEER FULLY REMOTE PERMANENT ROLE SALARY - CIRCA £100K + BENEFITS Your new role We're looking for a Principal Software Engineer to join a high-growth technology business building an AI-powered digital platform operating at significant scale.This is a senior hands … role combining software engineering, architecture and DevOps. You'll own complex product engineering initiatives while also influencing the wider cloud platform, infrastructure and engineering standards. What you'll need to succeed What you'll be doing * Designing and delivering scalable product features end-to-end. * Remaining hands-on across ...

Principal Software Engineer Financial services | London | Hybrid, 6 days onsite per month Package: £75-£95k + 10% pension + 10% cash allowance + bonus + benefits pack. Were recruiting a Principal Software Engineer for a financial services organisation investing in its digital products … work closely with product, business and architecture stakeholders. Improve existing systems through practical, measured changes rather than relying on wholesale redesign. Requirements Significant software engineering experience and a track record of delivering large-scale enterprise web applications. Deep experience with Java, Spring Boot, microservices, ReactJS, SQL, MongoDB, DevOps ...

Senior/Principal Software Engineer Permanent - Hybrid working - Kent As a Principal Software Engineer, you will lead the design and delivery of embedded software for complex, safety critical systems. You will develop drivers, protocols and human-machine interfaces. Responsible for technical direction … will shape strategy, drive innovation and play a key role in delivering high-impact solutions. Core Duties: Leading design and development of embedded software, including drivers, protocols, human-machine interfaces with certification artefacts Defining system and software architectures from requirements using structured design, modelling and simulation Driving integration ...

Senior/Principal Software Engineer Permanent - Hybrid working - Kent As a Principal Software Engineer, you will lead the design and delivery of embedded software for complex, safety critical systems. You will develop drivers, protocols and human-machine interfaces. Responsible for technical direction … will shape strategy, drive innovation and play a key role in delivering high-impact solutions. Core Duties: Leading design and development of embedded software, including drivers, protocols, human-machine interfaces with certification artefacts Defining system and software architectures from requirements using structured design, modelling and simulation Driving integration ...

Senior/Principal Software Engineer Permanent - Hybrid working - Kent As a Principal Software Engineer, you will lead the design and delivery of embedded software for complex, safety critical systems. You will develop drivers, protocols and human-machine interfaces. Responsible for technical direction … will shape strategy, drive innovation and play a key role in delivering high-impact solutions. Core Duties: Leading design and development of embedded software, including drivers, protocols, human-machine interfaces with certification artefacts Defining system and software architectures from requirements using structured design, modelling and simulation Driving integration ...

Principal Software Engineer (Contract) - Naval Radar BAE Systems (Defence Solutions) Cowes, Isle of Wight 6 months Inside IR35 BAE Systems (Defence Solutions) is seeking an experienced Principal Software Engineer to support the development, maintenance and enhancement of advanced naval radar systems in service with ...

Principal Software Engineer Financial services London Hybrid, 6 days onsite per month Package: £75-£95k + 10% pension + 10% cash allowance + bonus + benefits pack. We're recruiting a Principal Software Engineer for a financial services organisation investing in its digital products ...

have a growing international footprint and are one of Europe's fastest-growing engineering businesses. About the role We are looking for a Principal Software Engineer to build the Internal Developer Platform that our engineering teams depend on - a platform built from the ground up for agentic … engineering. Our software teams work on hard problems under tight deadlines. Your job is to make sure the platform underneath them is not one of those problems. Working within the Platforms team, you will architect and own the tooling, infrastructure, workflows, and components that our clients developers build on. ...

Software Engineer (Principal & Senior) - Active SC, DV Clearable Location : Remote whilst SC, Cheltenham 4 days on-site once DV Salary : Lead, £90,000 - £100,000/Principal, £110,000 - £130,000 Clearance: Must have a minimum of active SC with ability to go through DV. Sanderson … Government & Defence are partnering with a specialist organisation at the forefront of data moderniastion across the Public Sectors. Duties & Responsibilities As a Lead or Principal Software Engineer, you will help lead the development of backend platforms and services for secure clients leveraging the latest commercial and open ...

PRINCIPAL SOFTWARE ENGINEER – V06450 Role Description Provide technical expertise across the software team for the requirements, design, implementation, testing and verification of the software subsystems on Naval radar Key Tasks Derive and maintain a set of software requirements from a baseline set of systems … requirements Produce and maintain a software design to meet a set of software requirements Use a software design to produce a deliverable software solution Test a software solution to prove that is meets its design aims and requirements Skills Have considerable ability of using ...

inclusive employer and a member of myGwork – the largest global platform for the LGBTQ+ business community. Please do not contact the recruiter directly. Principal Security Software Engineer Description - HP Wolf Security is transforming endpoint security through hardware-enforced protection, isolation technologies, and cloud-connected security services. … solutions protect millions of users worldwide by integrating security directly into the hardware, firmware, and software of modern PCs. As part of the HP Wolf Security R&D organisation, you will help strengthen the security engineering practices that underpin our products, ensuring security is built into every stage ...

PRINCIPAL SOFTWARE ENGINEER - V06450 Role Description Provide technical expertise across the software team for the requirements, design, implementation, testing and verification of the software subsystems on Naval radar Key Tasks Derive and maintain a set of software requirements from a baseline set of systems … requirements Produce and maintain a software design to meet a set of software requirements click apply for full job details ...

experienced automation software engineer eager to lead innovative control solutions in a flexible, hybrid working environment? We are seeking two talented professionals to join our team as Principal Automation Software Engineers. This is your chance to play a pivotal role in designing, testing, and commissioning cutting … automation systems for diverse industrial projects while enjoying the flexibility of working 2-3 days per week in the office. Role Overview: As a Principal Automation Software Engineer, you will support a leading engineering solutions provider with comprehensive design engineering tasks from quotation to commissioning. You will ...

Principal Process Automation Software Engineer Peterborough | Full time | £58,500 + overtime Hybrid Working A leading process automation business is entering an exciting period of growth and is strengthening its senior engineering team. This senior position sits at the heart of that growth. If you’ve spent … about it. My client delivers the full lifecycle, from quick upgrades to complete turnkey solutions: assessment, design, build, installation, commissioning, training and support. As Principal Engineer, you will be the technical authority across all of it. Why this role, and why now Join during the growth. You will ...

Principal Embedded Software Engineer | £70-85k + Bonus | Cambridge This is an opportunity to join a market-leading communications technology company developing mission-critical comms systems. You will take technical ownership of embedded application software development across Linux and Android platforms, helping deliver the next … generation of technology that underpins secure communications. Responsibilities: Designing, developing and testing embedded application software across Embedded Linux and Android platforms. Leading software component activities including architecture, task planning, technical reviews and integration testing. Developing new application features whilst maintaining and enhancing existing software components. Translating complex ...

ABOUT THE ROLE Were looking for a Principal Software Engineer to shape the technical direction of high-profile projects and lead the delivery of modern, scalable software. We use technology to create impactful, human-centred solutions that make a difference to users and organisations. We believe great … working closely with senior stakeholders, mentoring engineers across multiple teams, and line managing a small group of engineers while helping shape our approach to software delivery, architecture, and engineering culture. DIMENSIONS Budget : Awareness and influence on large-scale project budgets. Headcount : Lead multiple teams or larger cross-functional teams ...

Principal Java Engineer (Hands-On) £70,000 - £85,000 + Bonus + Excellent Benefits Hybrid - 1 Day Per Week Onsite in South Manchester Java | Spring Boot | AWS | Technical Leadership Please note: Visa sponsorship is not available for this position. We're working with an established technology business … South Manchester who are looking to appoint a Principal Java Engineer to play a key role in the continued development of their software platforms and engineering teams. This is an opportunity for an experienced Java Engineer who enjoys technical leadership but doesn't want to move ...

client is a major defence and aerospace company. Date Posted: 2026-10-15 Country: United Kingdom Location: Manchester, Lancashire Position Role Type: Unspecified Principal Software Engineer Location: Manchester Permanent Onsite Due to the interesting work we do and the sector this team is working in, we require … teams work synchronously with our customers to solve some of the toughest digital challenges faced in the world today. Role & Responsibilities Design and build software using industry best practice Collaborate with stakeholders and other engineers Contribute to the completion of milestones associated with your project Contribute to continuous improvement ...

Strategic Enterprise Technology Leadership Recognised Java Engineering Expertise Advanced Architecture & Systems Integration Capability What this role is all about We're looking for a Principal Software Engineer to join our client's Engineering function, providing technical leadership across complex enterprise platforms and customer-facing solutions. This … highly influential role responsible for shaping engineering standards, driving architectural decisions, leading large-scale technical initiatives and ensuring the successful delivery of integrated software solutions that support critical business outcomes. The role operates across multiple teams and works closely with senior stakeholders, architects and third-party partners to deliver ...

ABOUT THE ROLE We're looking for a Principal Software Engineer to shape the technical direction of high-profile projects and lead the delivery of modern, scalable software. We use technology to create impactful, human-centred solutions that make a difference to users and organisations. We believe ...

Principal Java Engineer (Hands-On) £70,000 - £85,000 + Bonus + Excellent Benefits Hybrid - 1 Day Per Week Onsite in South Manchester Java Spring Boot AWS Technical Leadership Please note: Visa sponsorship is not available for this position. We're working with an established technology business … South Manchester who are looking to appoint a Principal Java Engineer to play a key role in the conti click apply for full job details ...

client is a major defence and aerospace company. Date Posted: 2026-10-15 Country: United Kingdom Location: Manchester, Lancashire Position Role Type: Unspecified Principal Software Engineer Location: Manchester Permanent Onsite Due to the interesting work we do and the sector this team is working in, we require ...