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Principal Software Engineer (ADA/C#. A real-time embedded software engineer with knowledge of. Support the specification, design, coding and testing of complex real-time embedded software in Ada producing mission critical quality software, to high integrity levels, company standards and customer req

Senior Systems & Regulatory Software Engineer. Systems / Regulatory Software Engineer. Confident communicator with engineers, quality, and senior stakeholders.

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.

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.

We’re looking for a senior Front End Software Engineer who can be the technical go-to person in their area, offering guidance, mentorship, and hands-on expertise. This is a chance to make a real impact across multiple products and help influence our engineering direction as we continue to grow. De

Join OCI’s Edge Security team as a Principal Engineer to architect and deliver cloud-scale DDoS protection. Mentor engineers, influence cross-org roadmaps, and collaborate with Product, SRE, and Network Engineering from concept to GA. This role requires deep expertise in Linux networking data path

The Principal Software Engineer (Full Stack) role is a full-time permanent position located in the United Kingdom and is a remote working role. Mentor and coach engineers and senior engineers, fostering professional growth and technical excellence. Core Technology skills required – Strong full sta

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.

Take ownership of complex tasks across the full software lifecycle—from requirements to integration, testing, and delivery. Strong understanding of object-oriented design and software development methodologies. Experience across the full software lifecycle, including automated testing frameworks a

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

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

Principal Software Engineer (C#, Azure, Event Driven). 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 Princi

What You’ll Do Design, develop, debug, and test real-time embedded software in Ada Own complex work packages from requirements through integration and delivery Produce high-integrity, mission-critical software to defined engineering and quality standards Work collaboratively across discipline

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

Work with Principal Engineers and Architects to share and supply to the broader technical vision. Design, build, test and maintain software to help integrate and orchestrate the movement of data between critical Data components. Deliver observable, reliable and secure software, adopting you build it

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

Contract Software Engineer (Ada) – Real-Time Embedded. We seek an engineer with recent high-integrity or safety-critical industry experience (defence, aerospace, or similar), or eligible for UK security clearance.

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

Circa £60,000 depending on experience \n\n Providing advice on product safety matters to project and engineering managers delivering the programmes and ensuring the safety considerations are correctly considered and implemented \n Engaging with third parties, to review and gather supporting Design

What You'll Do Design, develop, debug, and test real-time embedded software in Ada Own complex work packages from requirements through integration and delivery Produce high-integrity, mission-critical software to defined engineering and quality standards Work collaboratively across disciplines while

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,.

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

Lead Software Engineer IoT & Full-StackLocation: Hybrid / BicesterType: PermanentSalary: Competitive, market-basedTUAL Technology is an innovative, VC-backed start-up based in Bicester, developing PowerUp a high-power EV charging solution designed for grid-constrained sites.

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

Contract Software Engineer (Ada) – Real-Time Embedded. We seek an engineer with recent high-integrity or safety-critical industry experience (defence, aerospace, or similar), or eligible for UK security clearance.

Work with Principal Engineers and Architects to share and supply to the broader technical vision. Deliver observable, reliable and secure software, adopting you build it you run it mentality, and focus on automation. Our team develops and supports market-leading video streaming services, underpinned

We are looking for principal software engineers with diverse experience.

Job Description Contract Software Engineer (Ada) – Real-Time Embedded Location: Luton (Hybrid – ~4 days on-site) Contract Length: 12 months IR35: Inside IR35 Rate: £57. Umbrella We seek an engineer with recent high-integrity or safety-critical industry experience (defence, aerospace, or simi

Principal Software Architect (FinTech SaaS) – UK Remote 💻 We are representing a scaling B2B FinTech that provides core decisioning infrastructure for the global financial services sector. We are looking for a heavyweight Principal Engin

The Role: The Principal Software Engineer (Full Stack) role is a full-time permanent position located in the United Kingdom and is a remote working role. Mentor and coach engineers and senior engineers, fostering professional growth and technical excellence. Core Techno

A global engineering consultancy is looking for a highly motivated Software Engineering Technical Team Lead in London.

Under minimal supervision, leads software development activities including software requirements, architecture, design, implementation, and integration. Follows project and corporate software plans, standards, and procedures to perform software development. Consult dictionary of competencies on Mana

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

It’s a new level of ownership for many engineers, but we’d rather an engineer fail a bit and coach up their skills than use process as a crutch. To you, a tech lead, staff, or principal engineer is someone who spends most of their time project managing or doing architecture reviews. While they l

Drive adoption of engineering best practices — testing, CI/CD, observability, and secure coding. Expertise in quality engineering practices inclusive of unit, integration, functional, regression and performance testing. Proven experience mentoring engineers, influencing large‑scale technical dec

A leading software solutions provider is seeking a skilled Principal Software Development Engineer in Greater London. This role involves designing, building, and maintaining quality software while collaborating with cross-functional teams to ensure client satisfaction. The ideal candidate has over 7

Degree in Computer Science or Software Engineering, with at least 8 years of relevant work experience, including technical leadership and people management. We are looking for a highly motivated individual to become a Software Engineering Technical Team Lead within our Project Delivery Model team.

A leading software company is seeking a Principal Engineer (Web) to lead the design and development of scalable web platforms. The ideal candidate has over 10 years of software development experience, including 3 years in a senior role, and possesses a strong technical background in web architecture

Elasticsearch - Principal Software Engineer II - Storage Engine. Principal Software Engineer II. We believe that the best way to do that is to empower individual engineers, code review every change, decide big things by consensus, and strive for incremental improvements.

Join to apply for the Principal Software Development Engineer role at Clearwater Analytics (CWAN). We are seeking a skilled and motivated Senior Software Engineer to join our dynamic team at CWAN. In this role, you will be responsible for designing, building, deploying, and maintaining high-quality

Senior Principal Software Engineer (REMOTE). We're seeking an exceptional Senior Principal Engineer to serve as the technical leader to develop the future of autonomous infrastructure platforms for the enterprise. Champion engineering excellence through code reviews, design reviews, and mentorship o

Elasticsearch – Principal Software Engineer II – Storage Engine. Elasticsearch – Principal Software Engineer II – Storage Engine. Principal Software Engineer II.

We re seeking a Principal Embedded Software Engineer to take a leading role in the development and evolution of our embedded software across both new products and established designs. This position is ideal for an experienced engineer who enjoys guiding technical direction, mentoring others, and dri

Principal Software Development Engineer - CAD/Geometry. As a Software Development Engineer at Autodesk Research, you will work side‑by‑side with world‑class researchers and engineers to build new ML‑powered product features that help our customers imagine, design, and make a better world. Yo

A leading global financial services firm seeks an experienced Principal Software Engineer specializing in Java development for algorithmic trading.

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

A leading foreign exchange provider in the UK is looking for a Principal Software Engineer to shape their technology platforms.

As a Software Development Engineer at Autodesk Research, you will work side-by-side with world‑class researchers and engineers to build new ML‑powered product features that help our customers imagine, design, and make a better world. You are a software engineer who is passionate about solving pr