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NET Software Engineers to drive this evolution. They're engineering a robust, merchant-centric ecosystem built on quality, resilience, and scale - and they need exceptional. Drive performance optimisation and system reliability through intelligent engineering.

Senior, Staff & Principal Engineers. Senior: 90-115k | Staff: 120-135k | Principal: 140-160k.

Mentor engineers, influence cross-org roadmaps, and collaborate with Product, SRE, and Network Engineering from concept to GA. Join OCI’s Edge Security team as a Principal Engineer to architect and deliver cloud-scale DDoS protection. Background in resilience engineering, chaos testing, disaster r

Touchstone Advisory, a leading UK independent valuation advisory firm, is seeking an exceptional Principal Software Engineer to lead the evolution of our proprietary valuation platform—from a proven proof of concept to a robust, market-ready product. You will be both the hands-on technical lead an

Principal Software Architect (FinTech SaaS) – UK Remote. Identifying cross-cutting technical hurdles and driving the adoption of solutions across the entire engineering organisation. Working alongside Product Managers to turn business goals into elite-level software.

Staff or Principal Software Engineer. Mentoring engineers and helping shape engineering best practices. Short intro call with engineering leadership.

You would be joining a squad of Principal engineers with different expertise that serves as a centre of excellence to the 16+ engineering teams in the wider engineering function. If you are a Front End-leaning Principal engineer who wants to combine your experience in web and AI to help unlock other

Senior Systems & Regulatory Software Engineer. Systems / Regulatory Software Engineer. Engineering-led culture that values.

Harrington Starr has partnered with a leading Global Payments Technology company who are seeking to hire a Principal Software Engineer to join their senior engineering leadership team. Provide leadership and mentorship across multiple engineering teams.

Were looking for a Principal Software Engineer to shape the technical direction of high-profile projects and lead the delivery of modern, scalable software. Youll provide hands-on technical leadership, working closely with senior stakeholders, mentoring engineers across multiple teams, and line mana

Senior, Staff & Principal Engineers. Senior: 90-115k | Staff: 120-135k | Principal: 140-160k.

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 believe great engineering happens when teams collaborate,.

Were looking for a Principal Software Engineer to shape the technical direction of high-profile projects and lead the delivery of modern, scalable software. Youll provide hands-on technical leadership, working closely with senior stakeholders, mentoring engineers across multiple teams, and line mana

Were looking for a Principal Software Engineer to shape the technical direction of high-profile projects and lead the delivery of modern, scalable software. Youll provide hands-on technical leadership, working closely with senior stakeholders, mentoring engineers across multiple teams, and line mana

As a Principal Software Engineer, you will play a major role in leading and developing software engineering in the Software Modelling and Simulation, autonomy and geospatial fields, along with providing key advice around innovation and new techniques to stakeholders. We are looking for principal sof

This is a hands-on technical role where you'll shape the design, guide the team, and ensure successful delivery of a critical transformation project.Collaborate with a cross-functional team (including React developers) to ensure seamless integration of front-end and back-end.Build credibility throug

Contract Software Engineer (Ada) – Real-Time Embedded. Produce high-integrity, mission-critical software to defined engineering and quality standards. We seek an engineer with recent high-integrity or safety-critical industry experience (defence, aerospace, or similar), or eligible for UK secu

Senior Systems & Regulatory Software Engineer. Systems / Regulatory Software Engineer. You will work at the heart of a multidisciplinary engineering team, helping to.

As the Principal Software Engineer, you be a hands-on technical authority, assisting with architecture, setting the development standards and best practices, and be the technical SME on what will be a massively, event driven platform. The Principal Software Engineer that joins this project, will be

You would be joining a squad of Principal engineers with different expertise that serves as a centre of excellence to the 16+ engineering teams in the wider engineering function. If you are a Front End-leaning Principal engineer who wants to combine your experience in web and AI to help unlock other

About The Role Deadline for applications: 11:59pm on 31st October 2025 Were looking for a Principal Software Engineer to shape the technical direction of high-profile projects and lead the delivery of modern, scalable software. Youll provide hands-on technical leadership, working closely with senior

Principal Software EngineerSalary: Negotiableplus benefits, pension (7% contribution), 25 days holiday & life insuranceWe are looking for principal software engineers with diverse experience.

You have created dashboards, defined SLOs, and used telemetry to drive engineering decisions. This is a hands-on, Principal-level Individual Contributor (IC) role designed for a technical pioneer. You will operate with significant autonomy, influencing the technical strategy for our key products and

About The RoleDeadline for applications: 11:59pm on 31st October 2025Were looking for a Principal Software Engineer to shape the technical direction of high-profile projects and lead the delivery of modern, scalable software. We believe great engineering happens when teams collaborate,.

You will operate with significant autonomy, influencing the technical strategy for our key products and mentoring senior engineers. Mentor and guide senior and mid-level engineers on modern, sustainable development practices. You have created dashboards, defined SLOs, and used telemetry to drive eng

Principal Software Engineer Location: Edinburgh, United Kingdom Contract Duration: 12 months Rate: £63. Role OverviewAn experienced Principal Software Engineer is required to join a. UmbrellaWe seek an engineer with recent high-integrity or safety-critical industry experience (defence, aerospace, o

We are looking for principal software engineers with diverse experience.

About The RoleDeadline for applications: 11:59pm on 31st October 2025Were looking for a Principal Software Engineer to shape the technical direction of high-profile projects and lead the delivery of modern, scalable software. We believe great engineerin

We are looking for principal software engineers with diverse experience.

A leading fintech scale-up in the UK is seeking a Principal Software Engineer to drive the development of a new credit card product.

As a hands‑on technical leader, you will set the engineering vision, drive technical excellence, and mentor teams to deliver exceptional web experiences that serve thousands of users. Act as a trusted advisor to engineering teams, providing hands‑on guidance in design, implementation, and code r

Principal Software Engineer Rust Low Latency. As a Principal Software Engineer / Developer you will earn a competitive package:. Principal Software Engineer / Developer (Rust Golang) London / WFH to £110k.

We are seeking a Principal Engineer (Platform) to lead the technical vision, strategy, and execution of our core platform systems. As a senior technical leader, you’ll shape our platform architecture, drive automation and observability initiatives, and mentor engineering teams in building robust,

A leading UK Challenger Bank is seeking Mid-Senior Software Engineers to contribute to their growth. This contract role, based in Liverpool, requires collaboration and mentoring within the engineering team. If you have experience with TDD, CI/CD and value engineering maturity, apply to join a dynami

We are seeking an experienced Embedded Linux Software Engineer to join our client’s multidisciplinary team. You will play a key role in architecting and developing hardware‑dependent software, ensuring seamless integration with custom hardware platforms, and contributing to medical‑grade syste

As a Principal Engineer in the Boost team, you’ll be part of a group of principal engineers who champion technical excellence. Technical interview with 2 of our Principal or Heads of Engineering (60 mins). Experience with AI‑powered feature development and leveraging AI tooling for software deli

Principal Software Engineer, Load Balancer - Isovalent. Cisco Isovalent is seeking a skilled and experienced Software Engineer to develop its next generation Load Balancer leveraging the technology developed with Cilium. Collaborate across engineering, product, and customer teams to align technical

With more demand for their product than they can currently meet, we're looking for a Principal Engineer to grow their engineering team, with strong experience in:. Software Development and IT Services and IT Consulting.

A leading cloud engineering consultancy based in Greater London is seeking a Principal Software Engineer to provide technical leadership and direction in software delivery. Applicants should possess a solid background in software engineering, particularly with React and microservice architectures.

Our Software Engineers don't just implement solutions—they discover new patterns of working with AI that. We work with enterprise organisations on a global stage, reinventing how they design, build, and operate AI‑powered software at scale with speed. Provide deep technical guidance to multiple

A leading wireless communications company based in Southampton is seeking a Principal Wireless Software Engineer to develop high-performance software for next-generation wireless signal processing. The role offers the chance to influence key technical decisions, mentor junior engineers, and engage i

London – I'm HIRING a Principal Software Engineer (Full-Stack Java & React) 🏅. Strong engineering culture focused on quality, sustainability, and modern practices. Principal / Lead Full Stack Java Developers.

As a Principal Frontend Engineer, your responsibilities will include:. Design scalable architecture supporting 9+ business domains and multiple engineering teams. Teya is a payment and software service provider, headquartered in London serving small, local businesses across Europe.

Sign in to set job alerts for “Principal Software Engineer” roles. Principal Generative AI Software Engineer - SVP. We're looking for an exceptional, product-minded full-stack software engineer to join our engineering team & help scale Omnea with us.

As a Principal Software Engineer, you will lead the architecture and development of highly advanced software systems. You will provide strategic technical direction, mentor senior engineers, and ensure that software solutions meet business and technical requirements. Define architectural standards a

A technology company is seeking a Principal Software Engineer II specializing in the storage engine for Elasticsearch.

Principal Software Engineer page is loaded. As a Principal Software Engineer, you will participate in technical discussions to design solutions that meet product requirements, develop test-driven code, pair with team members, mentor juniors, and support existing API Platforms. We support our corpora

Principal Software Engineer, Snyk Code (SAST). Join to apply for the Principal Software Engineer, Snyk Code (SAST) role at Snyk. As a Principal Software Engineer on the Snyk Code team, you will be responsible for driving our technical future and tackling our most difficult and strategic challenges i