Team Overview XiP is building a next-generation cross-asset calculation system for Citi trading desks and enterprise users in the largest global financial markets and exchanges in New York, London, and other major financial hubs. Our team owns multiple Java Spring Boot Services that execute, partition, and track quantitative risk graphs/trades in a distributed environment. These graphs can fail due to their complexity and our system must adapt quickly to these failures to provide a seamless experience for clients.  XiP Compute Services are deployed onto OpenShift and Amazon’s Elastic Kubernetes Service (EKS). An important initiative in 2025 will be onboarding Google’s Kubernetes Engine to further expand our coverage. Our system scales on-demand, and we can run up to tens of thousands of replicas of our services across all asset classes.  Role Overview We are seeking a Senior Engineer to fill the role of ‘Applications Development Technology Lead Analyst’ on the...

Important: All applicants must be able to obtain Security Clearance and must hold British Nationality as their sole / primary nationality. Working: The role offers flexible working but does require engineers on site for 3-4 days per week and is a on secure site where SC clearance is needed. - We're looking for a Senior Software Engineer to join one of our leading defence clients. In this team, you will collaborate across Electronic Engineering, Test Centre and Software Engineering to deliver the test capability. This team facilitate robust and timely test on products and ensure the business continues to provide a decisive military capability. They are also responsible for developing and supporting software packages that utilise Test Equipment hardware to configure, verify and validate the conformance and quality of the product range from development, through production and into field test scenarios. The Software Engineer with be joining a multi-disciplined,...

Location: Templecombe, United Kingdom Thales people architect solutions that are relied upon to deliver operational advantage at every decisive moment throughout the mission. Defence and armed forces customers rely on us to deliver the full range of defensive systems for land, sea, and air. From early warning, to threat neutralisation, our platforms cover all levels from very short-range systems, to extended protection across the entire battle-space including Airspace Mobility Solutions, Vehicles and Tactical Systems and Missile Defence, Optronics, and Radar. Together we offer fantastic opportunities for committed employees to learn and develop their career with us. At Thales UK, we research, develop, and supply technology and services that impact the lives of millions of people each day to make life better, and keep us safer. We innovate across the major industries of Aerospace, Defence, Security and Space. Your health and well-being matters to us and that’s why we offer you...

Senior Software Engineer (Equinox) – Equity Derivatives Tech About Citi Citi is a world-leading global bank. We have approximately 200 million customer accounts and a presence in more than 160 countries and jurisdictions worldwide. We provide consumers, corporations, governments, and institutions with a broad range of financial products and services, including consumer banking and credit, corporate and investment banking, securities brokerage, transaction services, and wealth management. We enable clients to achieve their strategic financial objectives by providing them with cutting-edge ideas, best-in-class products and solutions, and unparalleled access to capital and liquidity. About the team The Equity Technology organization is undertaking a multi-year investment to completely re-engineer the front office technology platform, to support business expansion plans to close the gap to competition. Citi Investment Strategies (CIS) Engineering group comprises four...

Senior Backend Software Engineer - Cloud-Native Platform Up to 85,000 Hybrid (Nottinghamshire HQ) I'm delighted to be once again recruiting on behalf of my technology-led client that's building a modern, cloud-native platform from the ground up. They're looking for a Senior Backend Software Engineer to join a high-performing team focused on delivering scalable, secure, and high-quality services using the latest tools and engineering practices. This is a hands-on role for someone who enjoys solving complex problems, working in a microservices environment, and contributing to architectural decisions. The team values clean code, automation, and continuous improvement-and they're looking for someone who shares that mindset. Key responsibilities as the Senior Back-End Software Engineer are: Design and develop backend services using Node.js and TypeScript , deployed in a cloud-native environment. Build and maintain GraphQL and REST APIs to support a range of digital...

Location: Belfast, United Kingdom Thales people architect solutions that are relied upon to deliver operational advantage at every decisive moment throughout the mission. Defence and armed forces customers rely on us to deliver the full range of defensive systems for land, sea, and air. From early warning, to threat neutralisation, our platforms cover all levels from very short-range systems, to extended protection across the entire battle-space including Airspace Mobility Solutions, Vehicles and Tactical Systems and Missile Defence, Optronics, and Radar. Together we offer fantastic opportunities for committed employees to learn and develop their career with us. At Thales UK, we research, develop, and supply technology and services that impact the lives of millions of people each day to make life better, and keep us safer. We innovate across the major industries of Aerospace, Defence, Security and Space. Your health and well-being matters to us and that’s why we offer you the...

Important: All applicants must be able to obtain Security Clearance and must hold British Nationality as their sole / primary nationality. Working: The role offers flexible working but does require engineers on site for 4/5 days per week and is a on secure site where SC clearance is needed. - We are looking for passionate and skilled software engineers who have exceptional problem-solving and critical thinking skills, are analytical with high attention to detail, and are self-motivated join one of our leading defence clients. The Human Machine Interface (HMI) and Cyber team are looking for Software Engineers to join the team to help develop future defence capability for the Royal Navy! Our defence client is looking for Software Engineers with a deep and broad range of experience in software engineering, from requirements to certification, who have taken the lead in technical implementation and delivery of complex solutions, as well as supporting and mentoring other...

Important: All applicants must be able to obtain Security Clearance and must hold British Nationality as their sole / primary nationality. Working: The role offers flexible working but does require engineers on site for 4/5 days per week and is a on secure site where SC clearance is needed. - We are looking for passionate and skilled software engineers who have exceptional problem-solving and critical thinking skills, are analytical with high attention to detail, and are self-motivated join one of our leading defence clients. The Software Engineers with be joining the New Product Development team working on the next generation of mission planning and control products, exploiting a wide portfolio of software technologies. The focus of the role will be working with a range of international teams and stakeholders to lead the development and delivery of software requirements and design through the complete software engineering lifecycle. We are looking for Software...

Senior Software Validation & Verification Engineer Location: Canterbury, Kent Employment Type: Full-Time, Permanent Are you passionate about building robust testing environments that ensure high-quality, reliable software and firmware? This role offers the opportunity to take ownership of software validation and verification processes across complex, multi-disciplinary engineering projects. You'll work closely with mechanical, electronic, and systems engineers to shape best practice, drive continuous improvement, and support new product development from early design through to delivery. Key Responsibilities: Develop, implement, and document validation and verification processes for new and modified software/firmware Build and maintain a structured test environment to support agile development Participate in team stand-ups, planning sessions, reviews, and retrospectives Provide technical guidance to colleagues and support ongoing and future projects Maintain clear...

Senior Embedded Software/ Firmware Engineer Up to £75,000 Edinburgh/Hybrid Join our client s R&D team and make your mark on cutting-edge oilfield technology. Our international client designs and builds advanced downhole and subsurface tools used in some of the most demanding environments on earth. They develop all firmware in-house giving engineers the rare opportunity to see their designs deployed in the field and make a tangible impact on real-world operations. They are looking for an experienced Embedded Software / Firmware Engineer who s passionate about embedded systems and ready to take ownership of the full firmware development lifecycle from concept to deployment. What You ll Do Design, develop, and test firmware for innovative downhole and surface tools. Work on low-power, high-reliability embedded systems that must perform in extreme conditions. Implement safe-failure modes and robust communication protocols....

Location: Cheadle, United Kingdom Thales people provide armed forces customers with operational advantage at every decisive moment throughout the mission. Defence and armed forces customers rely on us to deliver the full range of defence mission systems solutions at land, sea, and air. Our platforms extend across the battlespace including Above and Sonar, Electronic Combat, and Intelligence, Surveillance and Reconnaissance systems. Together we offer fantastic opportunities for committed employees to learn and develop their career with us. At Thales UK, we research, develop, and supply technology and services that impact the lives of millions of people each day to make life better, and keep us safer. We innovate across the major industries of Aerospace, Defence, Security and Space. Your health and well-being matters to us and that’s why we offer you the flexibility to do what’s important to you; whether that’s part time hours, job sharing, home working, or the ability to flex...

Job Title: Senior Software Developer Full Time / 37.50 hours per week / Hybrid – Some travel required to our Northampton or London offices Salary From: £ 60k per annum Closing Date: 30/9/25 or until the right candidate is hired Purpose of the Role: We are seeking a highly experienced Senior Software Engineer to lead the development of scalable, enterprise-grade software solutions and play a pivotal role in our ongoing digital transformation initiatives. This role is ideal for a passionate technologist who thrives in a collaborative environment and is eager to contribute to the design, development, and delivery of enterprise-grade applications  The role demands a strategic thinker with a strong technical foundation and proven leadership capabilities. You will guide architectural decisions, mentor engineering teams, and collaborate with stakeholders to align technology with business goals. The ideal candidate has a track record of delivering complex systems within large...

Join a dynamic energy provider dedicated to sustainable solutions in the UK. We seek enthusiastic and resourceful Backend Python Engineers at mid to senior levels who are passionate about crafting exceptional products. Initially it will be a three-month contract but there is potential for it to be extended. The role is Hybrid, with one day a week being based in their London. It is a full-time role, 40 hours per week. If this role feels right, send us your CV. Accountabilities: Playing a pivotal role in the backend engineering team, you will help to build full-stack cloud apps. You'll be using Python and AWS Cloud services on the backend. Adopt a Server-less first approach to application design, collaborating within an agile team alongside other backend engineers and product designers. Strategize, develop, test, and deploy new features and experiments. Engage in collaborative coding practices such as pair programming and code reviews within the team. Contribute to...

Job Description Senior Design Engineer - Submarines Derby Full Time/ On-site Up to 74,000 + Benefits + Bonus We have an exciting opportunity for a Senior Design Engineer to join Rolls-Royce Submarines in Derby. What we offer We provide excellent development, a competitive salary and exceptional employee benefits and comprehensive package to our employees to include bonus, pension and the opportunity to accrue additional holiday. We also offer numerous flexible benefits to compliment these. So, if you are a Senior Design Engineer ,Project Design Engineer or Design and Development Engineer, who is passionate about engineering, can demonstrate mechanical design experience from concept to delivery and believe you can make a difference in our Submarines business, we want to hear from you now, so apply online. What you will be doing: As a Senior Mechanical Design Engineer you will be creating component / assembly / systems designs and associated...

Job Description Design/Development Engineer (Pressure Vessels) - Submarines Full Time - Hybrid (3 Days a week on site) Derby Up to 74,000 + Benefits + Bonus We have an exciting opportunity for a Design/Development Engineer to join our Vessels and Installations Team within the Rolls-Royce Submarines business. What we offer We provide excellent development, a competitive salary and exceptional employee benefits and comprehensive package to our employees to include bonus, pension and the opportunity to accrue additional holiday. We also offer numerous flexible benefits to compliment these. As the Design/Development Engineer you will get involved in all stages of product development, from feasibility and concept, through design, build, development, through full lifecycle. You will have the chance to see your ideas become reality in a fast-paced environment, where your problem solving, and engineering skills will be challenged and developed. As part of the...

Date Posted: 2025-11-26 Country: United Kingdom Location: Atlantic Inertial Systems Limited, Clittaford Road, Southway, Plymouth, Devon, PL6 6DE Position Role Type: Unspecified At Collins Aerospace, precision and reliability guide everything we do. Our Bristol and Plymouth sites are centres of excellence for navigation and control systems, powering world-class innovations like MEMS-based IMUs and TERPROM terrain navigation systems. This is your opportunity to join a pioneering engineering team - in a hybrid role based in either Plymouth or Bristol - and take a leading role in the next generation of aerospace technology. What You Will Do: We're looking for a Senior Electronics/FPGA Engineer ready to take a leading role in shaping the next generation of aerospace systems. You'll work on high performance navigation and sensor technologies where precision, reliability, and innovation are critical. Lead full lifecycle firmware development on new and existing...

Location: Cheadle, United Kingdom Thales people provide armed forces customers with operational advantage at every decisive moment throughout the mission. Defence and armed forces customers rely on us to deliver the full range of defence mission systems solutions at land, sea, and air. Our platforms extend across the battlespace including Above and Sonar, Electronic Combat, and Intelligence, Surveillance and Reconnaissance systems. Together we offer fantastic opportunities for committed employees to learn and develop their career with us. At Thales UK, we research, develop, and supply technology and services that impact the lives of millions of people each day to make life better, and keep us safer. We innovate across the major industries of Aerospace, Defence, Security and Space. Your health and well-being matters to us and that’s why we offer you the flexibility to do what’s important to you; whether that’s part time hours, job sharing, home working, or the ability to flex...

Location: Crawley, United Kingdom In fast changing markets, customers worldwide rely on Thales. Thales is a business where brilliant people from all over the world come together to share ideas and inspire each other. In aerospace, transportation, defence, security and space, our architects design innovative solutions that make our tomorrow's possible. Together we offer fantastic opportunities for committed employees to learn and develop their career with us. At Thales UK, we research, develop, and supply technology and services that impact the lives of millions of people each day to make life better, and keep us safer. We innovate across the major industries of Aerospace, Defence, Security and Space. Your health and well-being matters to us and that’s why we offer you the flexibility to do what’s important to you; whether that’s part time hours, job sharing, home working, or the ability to flex your start and finish times. Where possible, we support a working pattern that...

Location: Belfast, United Kingdom Thales people architect solutions that are relied upon to deliver operational advantage at every decisive moment throughout the mission. Defence and armed forces customers rely on us to deliver the full range of defensive systems for land, sea, and air. From early warning, to threat neutralisation, our platforms cover all levels from very short-range systems, to extended protection across the entire battle-space including Airspace Mobility Solutions, Vehicles and Tactical Systems and Missile Defence, Optronics, and Radar. Together we offer fantastic opportunities for committed employees to learn and develop their career with us. At Thales UK, we research, develop, and supply technology and services that impact the lives of millions of people each day to make life better, and keep us safer. We innovate across the major industries of Aerospace, Defence, Security and Space. Your health and well-being matters to us and that’s why we offer you the...

Job title: Principal Systems Engineer Location: Cowes, Broad Oak, Great Baddow - Part time & accruing hours available. Please let us know if you would like to discuss these options Salary: Up to £75,900 (dependent on skills and experience) Put yourself into a dynamic Principal Systems Engineering role at the forefront of real world demands in the defence industry. Alongside ensuring operational excellence for our existing products, there will be the opportunity to develop next generation radar products to counter emerging threats and contribution to our strategy for new technology. Your new day-to-day will be exciting and diverse by applying the principles of Systems Engineering across the entire engineering development lifecycle as you join in developing radar systems used by those who serve and protect us. What you'll be doing: Develop novel solutions to evolving technical challenges and emerging issues for complex Radar Systems that our customers and...