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What You’ll Do as a Principal Software Engineer:. Requirement for a Principal Software Engineer:. Principal Software Engineer in Buckinghamshire,.

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

Principal Software Engineer – Node / TypeScript. Immersum is supporting a bootstrapped CyberSecurity SaaS company specialising in vulnerability scanning as they look to hire a Principal Software Engineer. Fully remote and engineering-led, the business prioritises clean architecture and long-term t

As Lead Java Developer, you’ll sit at the top of a well-structured engineering team. Collaborating with senior stakeholders to align engineering delivery with business goals. Supporting delivery, performance, and professional development across the engineering function.

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.

Principal Systems Engineer Software/Simulation.

This Principal Software Engineer role is designed for a hands-on technical leader with strong C++ and Unreal Engine expertise, working at the forefront of complex, performance-critical software delivery. The role combines advanced engineering with genuine technical authority, shaping how simulation-

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

We are looking for principal software engineers with diverse experience.

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 mentoring senior engineers. Mentor and guide senior and mid-level engineers on modern, sustai

Principal Software Engineer Edinburgh An innovative and well-established med tech company are seeking a proven technical leader to join its R&D team basedin central Edinburgh as a Principal Software Engineer.

Principal Electronics & Software Product EngineerLocation: Cambridge, CambridgeshireAn exciting opportunity has arisen for a Principal Electronics & Software Product Engineer to join a specialist product design consultancy focused on developing innovative technologies for multinational clients acros

Principal Software Engineer (Data Platforms / APIs). This is a rare opportunity for a senior engineer who wants to. The engineering challenge is non-trivial:.

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. Principal Embedded Software Engineer - C. As a senior member of the engineering team, you will shape software arch

As a senior member of the development team reporting to an Engineering Manager, you will serve as a principal engineer. Your responsibilities will include designing fault‑tolerant microservices, building scalable web and mobile UIs, and fostering an engineering culture that prioritises metrics ove

Playing a key role in software engineering activities for the development and deployment of new products. Extensive expertise in the engineering lifecycle – from requirements through to delivery. Working at the heart of a high-impact program, you will collaborate closely with dedicated engineering

Sony Music’s Product, Design, Engineering & Global Operations (PDEGO) team is seeking a Lead Software Engineer within our Pub Admin product team in our London King’s Cross office. Seeking 20+ years of software engineering experience in the following areas:. Pub Admin is our unified, modern right

A leading technology company is seeking a Principal Software Engineer in London to collaborate with AI researchers and bring innovative health solutions to market. The ideal candidate will have a background in software engineering, knowledge of distributed systems, and a passion for user experience.

La Fosse has partnered with a leading tech client who is looking for a Principal Software Engineer with extensive experience in React, TypeScript, and Kotlin. Principle Software Engineer - £625-£650 outside IR35 - London (Hybrid 3 days in the office required).

Strong background as a senior/principal full‑stack engineer (backend + frontend). Principal Engineer - Full-Stack (Java & React). Expertise in software design patterns, architecture and scalable system design.

A leading software development firm in London is seeking a Principal Software Engineer to lead the architectural evolution of their platform. The ideal candidate has over 12 years of software engineering experience, deep expertise in distributed systems, and exceptional leadership skills.

As a Principal eSoftware Engineer at JPMorganChase within the Electronic Client Services Algo execution team, your mission is to direct the evolution of our offering and the creation of next-level solutions that improve on existing workflows and also drive business expansion. Formal training or cert

They are now looking for a Principal Embedded Software Engineer to provide hands‑on technical leadership across multiple high‑value programmes, shaping low‑level embedded architecture and influencing technical direction across the team. For this Principal Embedded Software Engineer role, we ar

As part of the M&S Software Engineering team, you'll be joining a well-loved historic brand, working on solutions that serves millions of loyal customers and thousands of colleagues! With ethical values that run right through the company's core and technology leaders that truly understand software e

Principal Software Engineer (London Only). Our pay ranges for our Principal Engineer position within London is: £92,818 – £116,122 GBP. From early-stage startups to global enterprises, we work across industries to optimize our clients’ digital products through product strategy innovation, expe

A leading UK deep-tech design consultancy is seeking a Principal Embedded Software Engineer for a hybrid role in South Oxfordshire.

Principal Software Engineer AI & Innovation. Recruiting a Principal Software Engineer with a proven track record of delivering innovative, AI driven solutions and the curiosity to explore beyond traditional technology boundaries. Significant experience in a senior software engineering position.

At least 7+ years of experience in software engineering. Lead the end-to-end design and delivery of software solutions involving Wargames, Robotics, Autonomous systems, and Digital Twins. Lead small delivery teams and oversee the line management and performance of engineering staff.

A transformative Medical Device company in the UK is seeking a Principal Software Engineer. The ideal candidate has hands-on software testing experience and a relevant degree. You will lead software testing and quality assurance activities, create effective testing strategies, and manage cybersecuri

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. Principal Software Development Engineer - CAD/Geometry. Yo

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

Platform - Principal Software Engineer (Billing Team). Proven record of mentoring engineers, setting technical direction, and elevating engineering quality standards. Act as the expert reviewer and go‑to person for key parts of the billing experience stack, ensuring technical consistency and high�

The Principal Software Engineer shapes and evolves our architecture using Distributed Domain Driven Design practices, ultimately ensuring the robustness and scalability of our systems. Knowledge of multiple software stacks. Skilled with designing and operating software in a Cloud Provider such as AW

A leading cloud and software engineering consultancy in Greater London seeks a Principal Software Engineer to provide senior technical leadership. You'll design and evolve scalable software systems, mentor engineers, and influence architectural standards.

A leading biopharmaceutical firm in London seeks a Senior Principal Software Engineer to design cloud-native applications and maintain data pipelines. The ideal candidate will have a Bachelor's degree in Computer Science, extensive experience with full-stack development, and strong skills in Python,

I am looking for a Principal Software Engineer to join a leading AI cybersecurity startup who recently secured an additional $20 million in Series A funding. This Principal Software Engineer role will pay up to £115,000 (DOE) along with benefits, including career development opportunities, home off

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

Product adoption is increasing, customer demand is growing, and the engineering function is scaling to support long‑term platform evolution. This is a hands‑on technical leadership role for someone who thrives on solving deep engineering challenges and designing systems built for performance, re

Principal Software Engineer – Data & Distributed Systems - PerfectScale by DoiT. Our Principal Data Engineer will be an integral part of our Engineering teams in EMEA. DoiT offers PerfectScale, a pioneering Kubernetes optimization and management solution that empowers DevOps, SRE, and Platform Eng

We are looking for a Principal Software Engineer (we call them Principal Software Craftspeople) who shares the same values of pragmatism, professionalism and transparency as us to join our team. You bring deep hands-on experience in software engineering, particularly modernisation, with a track reco

Principal Software Engineer – Data & Distributed Systems - PerfectScale by DoiT. Our Principal Data Engineer will be an integral part of our Engineering teams in EMEA. R&D management to define the technical roadmap, review architecture and mentor junior engineers.

Principal Software Engineer (London Only). Our pay ranges for our Principal Engineer position within London is: £92-818-£116-122 GBP. Bringing depth in testing strategies, observability, fault tolerance, and secure engineering practices.

This Principal Python Software Engineer role is paying circa £65k with benefits including, 15% Bonus, 25 days holiday, enhanced pension, onsite gym, Car Scheme, healthcare scheme and more. Principal Python Software Engineer. As a Principal Python Software Engineer, you'll join an Agile team united

Senior or Principal Software Engineer. Several years operating at Principal Engineer, Lead Engineer, or Architect level. Senior or Principal Software Engineer.

Due to ongoing growth and strategic development initiatives, Our Client is seeking an experienced Principal Software Engineer to lead the development of sophisticated software applications and drivers for its range of specialised products. Job title: Principal Software Engineer. Maintain a strong un