101 to 125 of 245 Principal Software Engineer Jobs in the UK

benchmarked against the external market. Exceptions above the standard range are managed through governance controls to protect internal equity. Your Impact Are you a software engineer with a working knowledge of Artificial Intelligence (AI) and Machine Learning (ML)? Are you interested in developing software for some … most cutting-edge defence and aerospace projects in the UK? If the prospect of developing software for projects such as a sixth-generation stealth fighter jet or a revolutionary Laser Directed Energy product excites you, then Leonardo would like to hear from you. Leonardo is seeking to recruit Senior ...

benchmarked against the external market. Exceptions above the standard range are managed through governance controls to protect internal equity. Your Impact Are you a software engineer with a working knowledge of Artificial Intelligence (AI) and Machine Learning (ML)? Are you interested in developing software for some … most cutting-edge defence and aerospace projects in the UK? If the prospect of developing software for projects such as a sixth-generation stealth fighter jet or a revolutionary Laser Directed Energy product excites you, then Leonardo would like to hear from you. Leonardo is seeking to recruit Senior ...

Principal Software Engineer Salary to £80k, poss higher for their Unicorn candidate Role can be based remotely, as long as you can occasionally travel to London for client work (travel expenses paid) - approx. once a month. NB: Please only apply if you are a UK National ...

Marks & Spencer's Software Engineering team invites a Principal Software Engineer to provide senior technical leadership across the International Fashion, Home & Beauty domain, guiding mission-critical platforms for international growth. You will set technical direction, champion clean code and DevOps practices, and collaborate with engineering, product ...

Description Principal Software Engineer Location: Manchester Permanent Onsite/Hybrid (min 3 days a week on site) Due to the interesting work we do and the sector this team is working in, we require all candidates to be willing and eligible to hold SC and eDV clearance ...

lead at the intersection of infrastructure engineering, identity security, and AI—shaping how teams across the firm build and govern technology at scale.As a Principal Software Engineer at JPMorganChase within Infrastructure Platforms Engineering & AI Practices, you will help design and build platforms and shared services that meet … solutions consistently to meet evolving requirements for infrastructure identity and security requirements in an AI-enabled environment.This role is suited to a senior engineer who has hands-on skills to lead across multiple teams—defining architecture, engineering practices and standards, and delivering high-impact software that scales.Job responsibilitiesArchitect ...

Instil is seeking an experienced Principal Software Engineer to design, build, and guide production-ready software across Java, Python, C#/.NET and TypeScript. You’ll lead cloud-native initiatives on AWS/Azure/GCP, drive architecture decisions, and mentor engineers to raise technical excellence. … work with distributed systems, APIs, and modern CI/CD practices, embracing AI-assisted development to boost productivity and software quality. #J-18808-Ljbffr ...

part of the M&S Software Engineering team, you’ll be joining a well-loved British brand, working on solutions that serve millions of loyal customers and thousands of colleagues. With ethical values at the heart of the business and technology leaders who understand modern software engineering, this … exciting time to join us as we become a digital-first, engineering-led organisation.We are looking for a Principal Software Engineer to provide senior technical leadership across our International Fashion, Home & Beauty domain. You will shape and modernise mission-critical platforms that support international growth, working closely ...

intersection of infrastructure engineering, identity security, and AI-shaping how teams across the firm build and govern technology at scale. As a Principal Software Engineer at JPMorganChase within Infrastructure Platforms Engineering & AI Practices, you will help design and build platforms and shared services that meet our access … solutions consistently to meet evolving requirements for infrastructure identity and security requirements in an AI-enabled environment. This role is suited to a senior engineer who has hands-on skills to lead across multiple teams-defining architecture, engineering practices and standards, and delivering high-impact software that scales. ...

intersection of infrastructure engineering, identity security, and AI—shaping how teams across the firm build and govern technology at scale. As a Principal Software Engineer at JPMorganChase within Infrastructure Platforms Engineering & AI Practices, you will help design and build platforms and shared services that meet our access … solutions consistently to meet evolving requirements for infrastructure identity and security requirements in an AI-enabled environment. This role is suited to a senior engineer who has hands‐on skills to lead across multiple teams—defining architecture, engineering practices and standards, and delivering high-impact software that scales. ...

Posted:2026-08-06 Country:United Kingdom Location:Gloucester, South Gloucestershire Position Role Type:OnsiteRaytheon UK have a full time, perm opportunity for a Principal Software Engineer to join our specialist teams working onsite at our Manchester and Gloucester sites.You'll be part of our experienced software dev function, working in a cross-functional team, delivering and deploying critical software across a variety of programmes. In this area of the business we prove DevSecOps at scale, Artificial Intelligence, Machine Learning, cyber and geospatial intelligence capabilities to support the defence, intelligence and cyber sectors. Collaborating with ...

Posted:2026-08-06 Country:United Kingdom Location:Gloucester, South Gloucestershire Position Role Type:OnsiteRaytheon UK have a full time, perm opportunity for a Principal Software Engineer to join our specialist teams working onsite at our Manchester and Gloucester sites.You'll be part of our experienced software dev function, working in a cross-functional team, delivering and deploying critical software across a variety of programmes. In this area of the business we prove DevSecOps at scale, Artificial Intelligence, Machine Learning, cyber and geospatial intelligence capabilities to support the defence, intelligence and cyber sectors. Collaborating with ...

seeking a hands-on software engineer to join the Structured Credit & Financing Technology team in London. The role will provide intraday desk-facing coverage for Credit Repo, Credit Exotics and related Genesis trading tools, while also delivering strategic stability and platform enhancements across Structured Credit & Financing workflows. … capabilities that power our Firm, enabling our clients and colleagues to redefine markets and shape the future of our communities. This is a Principal Software Engineering position at VP level, which is part of the job family responsible for developing and maintaining software solutions that support business ...

seeking a hands-on software engineer to join the Structured Credit & Financing Technology team in London. The role will provide intraday desk-facing coverage for Credit Repo, Credit Exotics and related Genesis trading tools, while also delivering strategic stability and platform enhancements across Structured Credit & Financing workflows. … connections and capabilities that power our Firm, enabling our clients and colleagues to redefine markets and shape the future of our communities.This is a Principal Software Engineering position at VP level, which is part of the job family responsible for developing and maintaining software solutions that support ...

summary As our Principal Software Engineer, you will take a senior leadership role within the Digital Services Directorate, responsible for architecting, developing, integrating, and supporting the digital systems critical to our EPR rollout and wider organisational strategy. In this role, you will: Lead and mentor a team … highly skilled developers and integration specialists. Oversee development of high-quality, resilient, secure software and data integrations supporting clinical safety and operational efficiency. Act as technical authority across backend systems, interfaces, data architecture and code quality, providing expert leadership to development teams. Work with clinical and non-clinical colleagues ...

looking for a Principal Software Engineer to join the team. This role is central to ensuring the reliability, performance, and scalability of systems vital for public safety and essential services. You will act as a technical leader, mentoring other engineers and driving best practices across the development … world. Our complete TETRA and LTE solutions have been developed specifically for users in multiple sectors to face their critical communications challenges. The Software Team follows an Agile development process centred around Scrum ceremonies. During each sprint you may take on several tasks related to several of the responsibilities ...

part of the M&S Software Engineering team, you’ll be joining a well-loved historic brand, working on solutions that serve millions of loyal customers and thousands of colleagues. With ethical values that run right through the company’s core and technology leaders who truly understand software … transformation into a digital-first, engineering-led organisation, with the quality of our engineering teams being a key differentiator.We are seeking a passionate Principal Software Engineer to join us within Supply Chain & Logistics, where you will be a driving force behind the modernisation of mission-critical systems ...

Overview We are looking for a Principal Software Engineer to join a small, highly experienced Epicor Labs team that transforms innovative AI concepts into enterprise‐grade products trusted by enterprise customers. This hands‐on engineering role involves designing and building AI capabilities across Epicor’s ERP portfolio. … probabilistic design considerations. Raise the technical bar through architectural reviews, mentoring engineers at all levels, and turning good judgment into standards and automation. Qualifications Principal‐level engineering depth in C#/.NET and/or Python, with Azure preferred. Strong record of designing and shipping production services. Production TypeScript ...

Morgan Chase. AI Engineering tackle business critical priorities using innovative machine learning techniques and technologies with a focus on machine learning for Software, Cybersecurity and Technology Infrastructure. The team partners closely with all lines of business and engineering teams across the firm to execute long-term projects in these … areas that require significant machine learning development to support JPMC businesses as they grow. As a Principal Software Engineer at JPMorganChase within CDAO Technology Group in the Applied Innovation (of AI) Engineering team, you will design, develop, deploy, and maintain advanced AI products. You’ll collaborate with ...

Morgan Chase. AI Engineering tackle business critical priorities using innovative machine learning techniques and technologies with a focus on machine learning for Software, Cybersecurity and Technology Infrastructure. The team partners closely with all lines of business and engineering teams across the firm to execute long-term projects in these … areas that require significant machine learning development to support JPMC businesses as they grow. As a Principal Software Engineer at JPMorganChase within CDAO Technology Group in the Applied Innovation (of AI) Engineering team, you will design, develop, deploy, and maintain advanced AI products. You\'ll collaborate with ...

## Principal Cloud Software EngineerApplylocations: Cambridge, United Kingdomtime type: Full timeposted on: Posted Todayjob requisition id: R014527**AVEVA is creating software trusted by over 90% of leading industrial companies.****Job Title:** Principal Cloud Software Engineer**Location:** Cambridge, UK – Hybrid**Employment Type:** Full-time regular … cloud-native application platforms* Experience with Angular or equivalent web development frameworks* Experience using AI-assisted coding tools to improve engineering productivity and software quality* Strong communication, ownership, adaptability, and curiosity, with the ability to motivate others and lead through technical influence**R&D at AVEVA**Our global team ...

DescriptionRole PurposeWe are seeking a highly experienced Principal Software Engineer to provide technical leadership across our technology function, driving the design, delivery, and continuous improvement of enterprise applications and digital services.This is a senior hands-on role for an individual who combines deep technical expertise with strong … design and architecture of scalable, secure, and resilient enterprise applications, ensuring alignment with business and technology strategies.Drive Technical Leadership – Define and champion software engineering standards, architectural patterns, best practices, and reusable frameworks across the engineering community.Own Delivery Outcomes – Lead complex technology initiatives from concept through to deployment and support ...

DescriptionRole PurposeWe are seeking a highly experienced Principal Software Engineer to provide technical leadership across our technology function, driving the design, delivery, and continuous improvement of enterprise applications and digital services. This is a senior hands-on role for an individual who combines deep technical expertise with … design and architecture of scalable, secure, and resilient enterprise applications, ensuring alignment with business and technology strategies. Drive Technical Leadership – Define and champion software engineering standards, architectural patterns, best practices, and reusable frameworks across the engineering community. Own Delivery Outcomes – Lead complex technology initiatives from concept through to deployment ...

looking for a game-changing career, working for one of the world's leading financial institutions, you’ve come to the right place.As a Principal Software Engineer at JPMorgan Chase, you will be leading change as part of an agile team in Global Technology Asset Management that … whilst owning and delivering end-to-end cutting-edge solutions leveraging the latest technologies and the best industry practices.Applies knowledge of tools within the Software Development Life Cycle toolchain, including enterprise-authorized AI-assisted development and automation capabilities, to improve the value realized by automation at scale.Support the products ...

Role Purpose We are seeking a highly experienced Principal Software Engineer to provide technical leadership across our technology function, driving the design, delivery, and continuous improvement of enterprise applications and digital services. This is a senior hands-on role for an individual who combines deep technical expertise … design and architecture of scalable, secure, and resilient enterprise applications, ensuring alignment with business and technology strategies. Drive Technical Leadership – Define and champion software engineering standards, architectural patterns, best practices, and reusable frameworks across the engineering community. Own Delivery Outcomes – Lead complex technology initiatives from concept through to deployment ...