151 to 175 of 278 Permanent Principal Software Engineer Jobs

Prattwhitney is seeking a Principal Software Engineer for a full-time position in Manchester with a hybrid working model. You will design and develop software solutions while mentoring junior team members within our cross-functional team. The role requires full-stack experience with popular frameworks ...

Northern Trust is seeking a Principal Software Engineer to lead and mentor teams in London, delivering complex software solutions. You will leverage deep technical expertise to influence architecture, guide multi-disciplinary projects, and drive outcomes aligned with our business goals. The role emphasizes analytical thinking, decision ...

Hippo is seeking a Principal Software Engineer to lead strategic technical direction across multiple squads and drive enterprise-scale software delivery. You will shape architectural roadmaps, coach senior engineers, and partner with executives to align technical vision with business goals. The role emphasises leadership, collaboration with ...

Raytheon UK is recruiting a Principal Software Engineer to join our onsite teams in Manchester and Gloucester. You will contribute to secure, mission-critical software across defence programmes, working in a cross-functional team with DevSecOps at scale and AI/ML capabilities. Applicants should ...

100s alike. We’re growing fast and just getting started. Come join us for a whale of a ride! We are looking for a Principal Software Engineer (Docker Agents) to join Docker’s AI engineering team to build the future of containerized AI agents. Docker containers … call rotation for your team; respond to incidents, debug production issues, and drive continuous improvement of system reliability Qualifications 10+ years of software engineering experience, including 3+ years in technical leadership roles (Staff/Principal level or equivalent scope) Go Expertise: Strong proficiency in Go (this is absolutely ...

08th July, 2026We are looking to recruit an experienced and highly skilled Principal Software Engineer to lead the design, development, and optimisation of our mission-critical communication infrastructure. 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 lifecycle. Working alongside other Software application team members, the successful candidate will be responsible for the development, integration and maintenance of the existing Web. Come and join Sepura ...

Leonardo is seeking a Principal Software Engineer to drive pivotal technical work within our Integrated Sensors & Protection line. You will develop a new generation of features using innovative C/C++ software across defence projects, collaborating with a world‐class team to continuously improve and deliver ...

seeking a Senior Principal Software Engineer to provide senior technical leadership across Operational Excellence, Reliability and Security Engineering. The role identifies systemic problems across a large Product Engineering organisation and turns them into scalable engineering solutions, common standards and reusable capabilities. Working across engineering, architecture, security ...

Black Duck Software, Inc. helps organizations build secure, high-quality software, minimizing risks while maximizing speed and productivity. Black Duck, a recognized pioneer in application security, provides SAST, SCA, and DAST solutions that enable teams to quickly find and fix vulnerabilities and defects in proprietary code, open source … With a combination of industry-leading tools, services, and expertise, only Black Duck helps organizations maximize security and quality in DevSecOps and throughout the software development life cycle. Black Duck is seeking a Principal Software Engineer to serve as a technical leader for the company ...

team members in over 35 countries including the United States, Mexico, United Kingdom, Australia, Japan, India, and the Philippines.Job DescriptionWe are looking for a Principal Software Engineer to join our Shared Services team and help shape the technical direction of core platform capabilities used across Turnitin products.This … highly influential individual contributor role for an experienced engineer with deep expertise in backend development, cloud-native architectures, and large-scale distributed systems. You will partner with engineering leaders, architects, and product teams to deliver scalable, reliable, and secure solutions that support millions of users worldwide.What You'll DoLead ...

team members in over 35 countries including the United States, Mexico, United Kingdom, Australia, Japan, India, and the Philippines.Job DescriptionWe are looking for a Principal Software Engineer to join our Shared Services team and help shape the technical direction of core platform capabilities used across Turnitin products.This … highly influential individual contributor role for an experienced engineer with deep expertise in backend development, cloud-native architectures, and large-scale distributed systems. You will partner with engineering leaders, architects, and product teams to deliver scalable, reliable, and secure solutions that support millions of users worldwide.What You'll DoLead ...

team members in over 35 countries including the United States, Mexico, United Kingdom, Australia, Japan, India, and the Philippines.Job DescriptionWe are looking for a Principal Software Engineer to join our Shared Services team and help shape the technical direction of core platform capabilities used across Turnitin products.This … highly influential individual contributor role for an experienced engineer with deep expertise in backend development, cloud-native architectures, and large-scale distributed systems. You will partner with engineering leaders, architects, and product teams to deliver scalable, reliable, and secure solutions that support millions of users worldwide.What You'll DoLead ...

team members in over 35 countries including the United States, Mexico, United Kingdom, Australia, Japan, India, and the Philippines.Job DescriptionWe are looking for a Principal Software Engineer to join our Shared Services team and help shape the technical direction of core platform capabilities used across Turnitin products.This … highly influential individual contributor role for an experienced engineer with deep expertise in backend development, cloud-native architectures, and large-scale distributed systems. You will partner with engineering leaders, architects, and product teams to deliver scalable, reliable, and secure solutions that support millions of users worldwide.What You'll DoLead ...

helps you realize your potential. Our team is key to our success. We’re people-first. We value collaboration, curiosity and commitment.As a Principal Software Engineer at JPMorgan Chase within the Accelerator Business in the Platform Team, you are the heart of this venture, focused on getting … long-term architectural strategy for platform engineering, ensuring competitive advantage and scalability.Mentor and coach senior engineers across teams, elevating the technical bar and championing Software Engineering Communities of Practice.Serve as the key technical liaison for product, business, and security stakeholders, translating technical decisions into business impact.Lead the design ...

with Raytheon UK to hire for this role. Date Posted: 2026-08-11 Country: United Kingdom Location: Gloucester, South Gloucestershire Position Role Type: Onsite Principal Software Engineer Gloucester/Manchester Onsite Due to the interesting work we do and the sector this team is working … SCRUM teams work synchronously with our customers to solve some of the toughest digital challenges faced in the world today. 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 ...

helps you realize your potential. Our team is key to our success. We’re people-first. We value collaboration, curiosity and commitment. As a Principal Software Engineer at JPMorgan Chase within the Accelerator Business in the Platform Team, you are the heart of this venture, focused … term architectural strategy for platform engineering, ensuring competitive advantage and scalability. Mentor and coach senior engineers across teams, elevating the technical bar and championing Software Engineering Communities of Practice. Serve as the key technical liaison for product, business, and security stakeholders, translating technical decisions into business impact. Lead ...

helps you realize your potential. Our team is key to our success. We're people-first. We value collaboration, curiosity and commitment. As a Principal Software Engineer at JPMorgan Chase within the Accelerator Business in the Platform Team, you are the heart of this venture, focused … term architectural strategy for platform engineering, ensuring competitive advantage and scalability. Mentor and coach senior engineers across teams, elevating the technical bar and championing Software Engineering Communities of Practice. Serve as the key technical liaison for product, business, and security stakeholders, translating technical decisions into business impact. Lead ...

helps you realize your potential. Our team is key to our success. We're people-first. We value collaboration, curiosity and commitment. As a Principal Software Engineer at JPMorgan Chase within the Accelerator Business in the Platform Team, you are the heart of this venture, focused … term architectural strategy for platform engineering, ensuring competitive advantage and scalability. Mentor and coach senior engineers across teams, elevating the technical bar and championing Software Engineering Communities of Practice. Serve as the key technical liaison for product, business, and security stakeholders, translating technical decisions into business impact. Lead ...

discussion at offer stage. PURPOSE OF THE ROLE The BBC Dev Operations function within Media Tech is looking to appoint a Senior Principal Software Engineer to provide senior technical leadership across Operational Excellence, Reliability and Security Engineering. The role will identify systemic problems across a large … reference patterns and learning that help teams adopt better practices. YOUR SKILLS AND EXPERIENCE Significant experience providing senior technical leadership in a large, complex software engineering environment, with evidence of identifying systemic problems that cut across teams and turning them into scalable engineering solutions, standards, platforms or reusable capabilities. ...

leading retail technology firm is seeking a Principal Software Engineer for a 6-month contract in Manchester. This role involves collaborating with architects and product owners to lead a transformation to a cloud-native, event-driven architecture. Responsibilities include overseeing technology vision and strategy, along with opportunities ...

Marks & Spencer is seeking a Principal Software Engineer to join the Supply Chain & Logistics team. You will drive modernisation of mission-critical systems powering warehouse operations, collaborating with cross-functional teams to build robust, scalable software for millions of customers. You will lead technology strategy, promote ...

Hippo Digital Limited is seeking a Principal Software Engineer to guide multiple squads and shape the technical direction of complex digital services. You will act as a strategic leader across engineering, delivery and data, driving best practices and high-quality, scalable solutions. You will oversee architecture ...

working with an innovative technology business that is looking for an experienced Principal Software Engineer . You’ll have the opportunity to influence technical strategy, solve complex engineering challenges and mentor other developers. Location: Cambridge (Hybrid) The role: Lead the architecture, design and development of high-performance … optimise system performance and reliability. Mentor and support mid and senior-level developers. Work within an Agile/Scrum development environment alongside wider software and engineering teams. Strong commercial experience with C# and .NET , Proven experience designing and developing scalable, distributed systems and microservices. Experience with front-end technologies ...

leading cloud technology provider in London is seeking a Principal Software Engineer to develop the future of containerized AI agents. This role involves defining technical strategy and leading architecture decisions while working on the open-source cagent project. Ideal candidates have over 10 years of software ...

JPMorgan Chase is hiring a Principal Software Engineer within the International Consumer Bank to deliver secure, scalable, consumer-facing financial features. You will lead end-to-end delivery, architect AI-enabled workflows, and collaborate with product, design, and compliance to ensure regulatory alignment and reliability at scale. ...