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Full Time Onsite senior software engineer
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citi
10 Mar, 2026
Full Time
Senior Software Engineer (VP) – Equity Derivatives Technology
citi London, UK
Overview 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. You will join the Equity Derivatives technology team in London, specializing in developing and supporting the pricing platform that provides underlying asset prices for Global Equity Derivatives business. This team is a key partner to the markets business and has been a major contributor to its success.  What We do / The Team As a Senior Software...
citi
06 Mar, 2026
Full Time
Senior Software Engineer - Build AI Tools (Python, GoLang)
citi London, UK
Citi, the world leading global bank, has approximately 200 million customer accounts and a presence in more than 160 countries and jurisdictions worldwide. Citi provides 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. Citi enables 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. The Team: Cloud Technology Services (CTS) is responsible for looking after Citi’s Cloud programme across Public and Private Cloud. It has several new and exciting programmes utilising cutting edge cloud and container technologies, with a view to ensuring that our offerings are best in class and enable our wider business lines and clients alike. The job: This...
Light & Wonder
05 Mar, 2026
Full Time
Senior Software Engineer
Light & Wonder Manchester, United Kingdom
Gaming: Welcome to the world of land-based gaming. At Light & Wonder, it’s all about the games, and our Gaming team builds cutting-edge technology, products, and content for the most iconic casinos and operators across the globe. Position Summary Located in the vibrant Spinningfields district of Manchester, our studio is home to more than sixty talented content development specialists who design and build world‑class game content for both UK and international markets. We pride ourselves on creativity, collaboration, and technical excellence and we balance hard work with regular social events including team nights out, board‑game evenings, and more. About the Role As a Senior Software Engineer, you will work within a creative, multidisciplinary team alongside graphic artists and game designers to develop high‑quality video game software for the global gaming market. You’ll be responsible for producing clean, efficient, and well‑structured code while...
citi
05 Mar, 2026
Full Time
Senior Software Engineer, CalcGraphs - Vice President
citi London, UK
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...
citi
05 Mar, 2026
Full Time
Senior Software Engineer - Java/Kotlin (Developer Enablement) - Vice President
citi Belfast, UK
We’re looking for multiple talented engineers Server Side , to join one of our high-impact teams inside Citi’s CTO organisation . You’ll sit within Devel oper Enablement , a group focused on innovation, developer platforms and internal tools used across the bank, where we experiment and ship fast, like a startup inside a global bank. Our mission is to save our engineers tens of minutes per day, equating to £10,000,000s of savings at Citi’s scale.       Opportunities in CTO   There are many exciting opportunities for you , and flexibility to move between multiple projects if that’s something you’d enjoy.     SDLC Automation is a greenfield project that builds on the success we’ve had in automating the SDLC and takes it further . Th is blue-sky project looks at ways we can greatly improve the SDLC process at Citi, taking ideas like grad ing engineering teams and...
Light & Wonder
28 Feb, 2026
Full Time
Senior Software Engineer GDK
Light & Wonder Manchester, United Kingdom
Gaming: Welcome to the world of land-based gaming. At Light & Wonder, it’s all about the games, and our Gaming team builds cutting-edge technology, products, and content for the most iconic casinos and operators across the globe. Position Summary As a Senior Software Engineer, you will be a key contributor to the development of our next-generation cross-platform core game framework, used to power hundreds of games across online, mobile and desktop platforms. You will focus on creating robust, maintainable solutions whilst working collaboratively with a highly skilled team of developers. We're looking for people who are full of ideas, want to challenge the norm and work to our core values…  Dare to be Bold  - We always bring courage to work to reach for the unbelievable.  Uphold Integrity  - We promote accountability and respect to raise the bar for ourselves and the industry.  Never Settle  - We relentlessly push forward to create the extraordinary...
citi
28 Feb, 2026
Full Time
Full-Stack Senior Software Engineer, GenAI Data Products and Platform (VP)
citi London, UK
The Opportunity This is your chance to build the foundational systems for 'Citi Assist', a Generative AI assistant that will reach every Citi employee globally. You'll join us on the ground floor, becoming a core builder on a high-visibility platform that sets the standard for how a global bank adopts this technology safely and at scale. Here's what makes this role unique: we know that data is the key to building a successful, safe, and scalable generative AI assistant. The difference between a good AI product and a great one isn't just the model—it's the testing, evaluation, and feedback loops that make it better every day. As a data-focused full-stack engineer, you'll help us craft the tools and systems that let us understand how Assist is performing, where it's succeeding, and where it needs to improve. You'll work across the stack, building everything from intuitive dashboards that surface insights to robust backend pipelines that process evaluation data at scale....
citi
05 Mar, 2026
Full Time
Java Software Engineer
citi Belfast, UK
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. Citi Belfast is one of the largest employers in Northern Ireland with a diverse and talented team of over 4000 people from over 68 different nationalities across our four Belfast offices. We are the only global investment bank operating in Northern Ireland. Every day, our local experts interact with global teams in over 100 countries developing and supporting...
Thales
27 Feb, 2026
Full Time
Junior Embedded Software Research Engineer
Thales Reading, UK
Location: Reading, 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...
Redler
24 Feb, 2026
Full Time Permanent
Contract Manager / Project Manager / Mechanical Engineering
£40,000 yearly
Redler Stonehouse, Gloucestershire, UK
Mechanical Engineering Project Manager An exciting opportunity to join Redler, a well-established mechanical engineering company as a Contract / Project Manager, overseeing multiple projects, managing commercial contracts and ERP systems, and ensuring successful on-time, within-budget delivery in a manufacturing environment. If you’ve also worked in the following roles, we’d also like to hear from you: Engineering Project Manager, Operations Project Manager, Technical Contracts Manager, Mechanical Project Engineer, Project Manager, Contracts Manager, Project Engineer, Commercial Contract Manager, Contract Manager, Mechanical Project Manager, Technical Project Manager   SALARY: £40,000 per annum + Benefits LOCATION: Stonehouse, Gloucestershire, South West England (GL10) – Onsite role, candidates must live within a commutable distance JOB TYPE: Full-Time, Permanent   JOB OVERVIEW We have a fantastic new job...
citi
10 Mar, 2026
Full Time
Senior GenAI Developer - Innovation Labs (VP)
citi London, UK
Did your personal AI agent lead you to this opportunity? Fantastic! That kind of forward-thinking ingenuity is exactly what we champion at Citi Innovation Labs. Whether by AI or human insight, we're thrilled you're here to discover how you can shape the future of finance with us.   Citi Innovation Labs is a global network of innovation centers focused on delivering cutting edge solutions to all of Citi’s lines of business.     Our Mission is to create a competitive advantage for our clients, manifested as change in the way they operate, by providing innovative technological solutions with strong client engagement, from idea to production, and by leveraging the entrepreneurial spirit and technological excellence fostered in the Innovation Labs.    Our Labs Network is a global organization that spans across New York, London, Tel Aviv, and various other locations globally. We focus on delivering innovative products using cutting-edge technologies in highly complex...
citi
10 Mar, 2026
Full Time
Senior Staff Generative AI Engineer, Vice President
citi London, UK
At Citi, we are pioneering the future of enterprise operations through innovative technology. Our COO-Technology Engineering and Architecture capability is at the forefront, responsible for architecting best-in-class solutions, driving end-to-end transformation, and integrating cutting-edge Generative AI solutions to unlock unparalleled efficiency, automation, and risk reduction across our global operations. The Team: Innovating at Scale Our team is a dynamic hub of engineers and innovators dedicated to solving complex business challenges with intelligent solutions. We believe in building robust, scalable products that deliver tangible impact. We foster an environment of continuous learning, rapid iteration, and strong engineering practices. Here, you'll work alongside passionate experts, leverage the latest in AI, and contribute to a culture that values clean code, thoughtful design, and direct, hands-on problem-solving. We're not just adopting AI; we're building the...
Thales
08 Mar, 2026
Full Time
Safety Engineer (all levels)
Thales Bristol, UK
Location: Bristol, 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...
citi
07 Mar, 2026
Full Time
Senior Engineer - Python & Containerization (VP)
citi London, UK
Overview of Citi: Citi, the world leading global bank, has approximately 200 million customer accounts and a presence in more than 160 countries and jurisdictions worldwide. Citi provides 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. Citi enables 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. The Team: The Chief Information Security Office (CISO) is responsible for looking after the cyber security of all of Citi’s technical assets. It has several new and exciting programmes utilising cutting edge cloud and container technologies, with a view to ensuring that our cyber security is best in class and offers reassurance to our wider...
AWD online
06 Mar, 2026
Full Time Permanent
Application Support Analyst / Software Support Service Desk / Helpdesk
AWD online Welwyn Garden City, UK
Service Desk Application Support Analyst An excellent opportunity to join a progressive technology organisation providing specialist software solutions for the social housing sector. You’ll work on a busy helpdesk, supporting web-based business applications and developing your technical skills. If you’ve also worked in the following roles, we’d also like to hear from you: IT Support Engineer, Systems Analyst, Helpdesk Analyst, Technical Support Specialist, Service Desk Technician. PLEASE NOTE: Although you will be supporting a bespoke software application on a busy helpdesk, this is NOT a traditional IT Support role. You may touch on other Windows / Microsoft and Networking technologies, but your primary role will involve supporting the company’s bespoke Housing Management Software Application.   SALARY: Competitive + Benefits   LOCATION: Welwyn Garden City, Hertfordshire (AL7) – 100% Office Based JOB TYPE: Full-Time,...
citi
06 Mar, 2026
Full Time
Senior Front-End Developer (React, TypeScript) - VP, FX Options Pricing
citi London, UK
Senior Front-End Developer (React, TypeScript) - VP, FX Options Pricing Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech. The Opportunity We are seeking a highly skilled and motivated Senior Front-End Developer to join a critical greenfield program focused on transforming our electronic FX Options Trading business. This is a multi-year,...
AWE
05 Mar, 2026
Full Time
Senior Metrology Engineer
AWE United Kingdom
If you’d like to be considered for this opportunity we encourage you to apply promptly to avoid disappointment as if applications are high the role will close before the closing date given. Senior Metrology Engineer AWE has opportunities for highly skilled Senior Metrologists to contribute to some of the UK’s most critical and technically engaging programmes. We are looking for experts who excel in precision measurement and enjoy working with complex geometries in fast-paced, high‑stakes environments. Join us and play a pivotal role in supporting mission‑critical trials by programming and operating ultra‑high‑precision Co‑ordinate Measurement Machines, using the Quindos programming language and a range of advanced metrology equipment. If you’re ready to apply your expertise to work that truly matters, we’d love to hear from you. Location : RG7 4PR, located between Reading and Basingstoke, with free onsite parking Package: £49,480 - £78,200 (depending on your...
AWE
05 Mar, 2026
Full Time
Senior Machine Tool Maintenance Engineer
AWE United Kingdom
If you’d like to be considered for this opportunity we encourage you to apply promptly to avoid disappointment as if applications are high the role will close before the closing date given. Senior Machine Tool Maintenance Engineer Location: RG7 4PR , located between Reading and Basingstoke, with free onsite parking . Package: £51,500 to £56,000 (dependent on suitability and level of experience) + additional allowance Ready to play your part? At AWE, it’s not just a job, it’s far more than that. Our shared purpose is to help keep the nation safe. Could this role be the opportunity for you to play your part? AWE is looking for a talented Senior Machine Tool Maintenance Engineer to join our dynamic team. As part of AWE Production and Assets, you’ll play a pivotal role in driving the performance and reliability of our cutting-edge equipment. From installation and breakdown support to maintenance, servicing, and error mapping, your work will directly...
Thales
04 Mar, 2026
Full Time
Technical Manager / Principal Systems Engineer with Naval communications experience
Thales Crawley, UK
Location: Crawley, United Kingdom Thales people architect solutions at the heart of the defence-security continuum. Interoperable and secure information and telecommunications systems for defence, security, and civil operators, are based upon innovative use of radiocommunications, networks, and cybersecurity. We are ground breaking new digital technologies such as 4G mobile communications, cryptography, cloud computing and big data for use in physical protection systems, and critical information 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...
citi
03 Mar, 2026
Full Time
Software Engineer (AVP) Belfast
citi Belfast, UK
Role As a Senior Engineer you will be responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to lead applications systems analysis and programming activities   About the Department Developer Engineering & Engineering Excellence Tech is a function within CTO, responsible for measuring and supporting Engineers across Citi. Our mission is to make it easy and enjoyable for software engineering teams to go from a business idea to delivering an innovative product solution. The main goals are to improve and upgrade our tools, streamline our processes, automate and strengthen our controls, and help development teams adopt modern working methods. We are an expert team to transform the working environment of the 60,000 people who make up the Citi engineering community and help them dramatically change their approach to developing software across the many...
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