software systems engineer jobs in Windsor

You will have a high degree of accountability and responsibility from Day 1.

You will be an integral part of the Ripple Trading and Markets Team, building scalable, resilient and performant trading systems in a constantly evolving and fast paced environment.

You will have real impact and have the opportunity to drive the architectural roadmap, whilst looking to optimize away manual inefficiencies.

Role: Rust Distributed Systems Software Engineer - Up to £200k + Bonus Salary: Up to £200k + Bonus Location: London (Hybrid) Skills: Language agnostic, just need to be a keen technologist (Ideally experienced in Rust, Python or C++) This firm is an elite company with high tech standards who have previously set tech world records. They are made up of some exceptionally talented individuals who...

You will work on a diverse range of challenges, from model-serving APIs and data pipelines to infrastructure for intelligent agents and automation frameworks.

You will collaborate closely with the CTO and engineering team to design, build, and scale production systems that integrate AI into real-world applications.

Overview Join us, be part of more. We're so much more than an energy company. We're a family of brands revolutionising how we power the planet. We're energisers. One team of 21,000 colleagues that's energising a greener, fairer future by creating an energy system that doesn't rely on fossil fuels whilst living our powerful commitment to igniting positive change in our communities. Here, you can...

You will be responsible for the entirety of the back end features of the products.

You will be in charge of building scalable backend services and awesome messaging queues.

You will be responsible for developing a Python-based back end platform that's handling 100,000+s of interactions daily.

PROJECT DESCRIPTION Join a fast-moving, outcome-driven engineering team that builds high-quality simulations and real-time experiences using commercial and proprietary game engines. You’ll shape how we exploit, extend, and integrate engines to solve complex systems problems, influence product roadmaps, and mentor engineers across disciplines. If you love squeezing performance from engines,...

Power System Engineer 02/2026 – 07/2026 initially London The consultant will support projects at various phases by conducting studies. Scope includes: - Create and validate EMT and RMS models for relevant assets (e.g., WTG, PPC, STATCOM, as applicable). - Plan and execute design and Grid Code compliance studies, small disturbances and fault scenarios. - Draft clear, audit-ready technical...

Systems Engineering Team Lead | Aerospace & Defence | Salisbury (Hybrid) | £60,000 – £80,000 + 15% Bonus Want to work at the forefront of Uncrewed Aerial Systems (UAS) and help shape the future of aviation? This high-growth aerospace & defence business (40%+ year-on-year growth since 2019) is expanding its Systems Engineering function and is hiring a Systems Engineering Team Lead. You’ll...

Lead the design of high-integrity PLC control systems at the heart of the UK’s most regulated and safety-critical environments. Senior/Lead PLC Control systems engineer 12 month contract – rates DOE Office-based with a Hybrid working scheme. Inside IR35 2 openings available in either Warrington, Cumbria and Stockton Role Description We are seeking an experienced PLC Control Systems...

You will work at the intersection of software, embedded systems, payload integration, and customer operations, supporting the deployment of next-generation spatial intelligence tools into UAV and ISR ecosystems. Key Responsibilities:

Principal Systems Engineer – RF / Satellite Communications Location: Hereford, Herefordshire (Hybrid – 3 days onsite) A well-established UK engineering organisation operating at the forefront of satellite communications and RF systems are looking to appoint a Principal Systems Engineer to take ownership of complex products used in critical RF / SatCom infrastructure worldwide. This role suited...

Opportunity: Copello is partnering with a Defence client to recruit a Principal Control Systems Engineer to join their team. In this role, you will use your expertise in PLC and SCADA systems to design, develop, and support advanced control and HCI solutions for naval platform management systems. This is your chance to work on high integrity systems in a secure, highly regulated defence...

Are you passionate about cutting-edge IoT technology and hands-on systems testing? SPX Radiodetection is seeking a Senior Systems Test Engineer to join our Bristol-based multidisciplinary engineering team. This is a fantastic opportunity to play a pivotal role in testing and validating our Locator and CAT IoT platform products while shaping a world-class testing function. Why this role...

Senior Systems Engineering Consultant Below covers everything you need to know about what this opportunity entails, as well as what is expected from applicants. Bristol (Hybrid Working) Salary negotiable depending on experience Responsibilities: - Research and concept development of systems solutions. - Development and management of system requirements. - Development of abstract...

About Us: We’re a VC-backed stealth-mode company building behavioural AI solutions for the retail industry. Our platform is designed from the ground up — no legacy, no patchwork systems — just a clean slate and a clear vision. Our mission is to bring the intelligence of modern machine learning directly to the in-store shopping experience. Role: We’re looking for experienced Backend, Full Stack...

Software Engineer – Custom Software (Android) London Office Hybrid working – approx. 20% onsite URGENT contract - Initial 4 months with high likelihood of extension We’re looking for a Software Engineer with strong Android expertise to join a high-impact custom software team delivering solutions for a major defence client. This role offers the opportunity to work on complex, mission-critical...

You will join a cross-functional product engineering team focused on the evolution and modernisation of a core InsurTech platform. The work centres around building scalable, cloud-native services while improving performance, reliability, and long-term maintainability.

Senior Software Engineer (Golang) London – Hybrid flexible Up to £80,000 + equity We’re currently partnered with a real-time sports data platform that is revolutionising how companies leverage data to empower their business. They are looking for a performance focused Senior Engineer with a passion for writing clean, efficient, and maintainable code. This is an exciting opportunity to join...

Python Software Engineer – High-Frequency Trading We're working with a high-frequency trading (HFT) firm that is looking to expand its technology team with a Python Software Engineer. This is an opportunity to join a trading firm operating at the cutting edge of global markets, where technology and speed are paramount. They build and run highly scalable, ultra-low latency trading systems that...

Principal Software Engineer .NET £90,000-£110,000 Remote (UK) Do you thrive on building scalable solutions that power commerce worldwide? We're partnering with a rapidly expanding global payment platform fresh off a transformative acquisition. They're engineering a robust, merchant-centric ecosystem built on quality, resilience, and scale - and they need exceptional .NET Software Engineers to...