Principal Software Engineer jobs in Reading

Vicinity Technologies Limited, a dynamic leader in the UK’s 5G and AI revolution, is seeking talented Senior/Principal Wireless Software Engineers to join our team of innovators. As a key contributor, you will play an integral role in developing cutting-edge 5G, 6G and Non-terrestrial Network (NTN) solutions which are transforming the way we connect and communicate.Job...

You will have the opportunity to develop and enhance your skills and knowledge, with the potential to lead into more senior positions within a global business

Principal Software Engineer .NET £90,000-£100,000 Remote (UK) Are you passionate about writing clean, scalable code and ready to shape a platform used by merchants across the globe? We're working with a fast-growing global payment processing platform that’s scaling rapidly after a major acquisition. They are building a high-performance, merchant-first ecosystem that prioritises quality,...

Role: Principal Software Engineer Location: Berkshire Industry: Intelligence, Defence Job Type: Permanent, Onsite Salary: Competitive + Allowance + Bonus + Benefits Join a cutting edge engineering team developing high-performance embedded and application software for complex systems in the Intelligence/Cyber world. As a Lead Software Engineer, you’ll provide technical leadership across the...

Principal Software Engineer Cloud Engineering Scale-up c£100k North Scout are partnered with a fast-growing cloud engineering business that’s doubled revenues, expanded its technical team, and earned a strong reputation for delivering complex cloud programmes with pace and precision. They’re looking for a Principal Software Engineer to take a leading role across architecture, design and...

Role: Principal Software Engineer Location: Berskhire (Onsite) Industry: Intelligence, Defence Salary: Competitive + Allowance + Bonus + Benefits Join a cutting edge engineering team developing high-performance embedded and application software for complex systems in the Intelligence/Cyber world. As a Lead Software Engineer, you ll provide technical leadership across the full software...

Principal Software Engineer Fully Remote | Permanent | Competitive Salary + Benefits 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. This is a rare opportunity to combine hands-on development with strategic influence, guiding architecture decisions and shaping...

We're partnering with a scaling infrastructure company that's fundamentally transforming how digital and physical components interact in the age of AI. Their core mission is to empower teams to build and deploy sophisticated systems by providing scalable, secure, and robust infrastructure solutions for development, deployment, and scaling. Essential experience is being a Go expert and experience...

About the company A rapidly growing SaaS business is seeking to expand its engineering team. They serve enterprise customers at scale and are building features that matter to millions of users worldwide. You’ll be joining a company where innovation, growth and doing things differently are strongly encouraged. The role As a Principal Full Stack Engineer, you will be instrumental in shaping the...

Key details: Location: Remote, within the UK (with occasional travel to Milton Keynes, UK). Organisation: Oracle Cloud Infrastructure (OCI) – Strategic Customers Engineering. Requirements: Engineering experience at level of Principal, design/architecture with Java or similar. Experience with Cloud architecture, ideally OCI - or AWS/GCP/Azure could serve as an alternative Responsibilities:...

Principal Software Engineer Location: London - 1x a month Salary: £95,000 - £120,000 + equity + benefits An established, global technology business within the hospitality-tech industry is seeking an accomplished Principal Software Engineer to lead the design and delivery of next-generation digital solutions. This is an opportunity to shape greenfield projects from the ground up - architecting...

You will be a proven senior who still loves to code, enjoys taking ownership of front-end decisions, and wants to play a key role in shaping both our technology and the people around you. This is a chance to make a real impact across multiple products and help influence our engineering direction as we continue to grow.

Principal Developer (C# and Azure) required to lead architectural design and delivery across enterprise-scale Azure platforms. This hands-on technical leadership role involves shaping distributed systems and mentoring developers within a global travel and events technology environment. You’ll architect scalable microservices, drive Azure best practices, and guide product-aligned teams across the...

You will lead the development and delivery of sustainable, nature-based solutions a...

You will contribute to the delivery of concept studies and strategies with hands on design, leading to planning applications or construction drawing issue.

You will have proven experience and an interest in helping the junior members of the team in producing designs.

You will have strong post graduate experience in a civil engineering working environment.

You will help shape and grow a product with AI at its core, using agents to power an AI assistant advertising planners throughout their workflow. You’ll lead a cross-functional team of 8–10 remote engineers and data scientists, distributed across multiple countries in Europe, with a significant presence in Poland and Ukraine.

You will work within a multidisciplinary team of engineers and support staff delivering a consistent high-quality service for clients, ensuring that repeat and new business opportunities are developed and profitability is achieved.

You will work within a multidisciplinary team of engineers and support staff delivering a consistent high-quality service for clients, ensuring that repeat and new business opportunities are developed and profitability is achieved.

You will work within an enablement team whose mission is to help engineering teams deliver software faster, safer, and more reliably. The role blends technical depth with leadership: we need people who can think strategically, challenge the status quo, and guide the evolution of our on-premises private cloud platform.

Role: Principal Software Engineer Location: Berkshire Industry: Intelligence, Defence Job Type: Permanent, Onsite Salary: Competitive + Allowance + Bonus + Benefits Join a cutting edge engineering team developing high-performance embedded and application software for complex systems in the Intelligence/Cyber world. As a Lead Software Engineer, you’ll provide technical leadership across the full...