DI Jobs
  • Home
  • Search Jobs
  • Job Board Advertising Packages
  • Post a Job
  • Sign in
  • Sign up
  • Home
  • Search Jobs
  • Job Board Advertising Packages
  • Post a Job

Refine Search
Current Search
Information Technology senior software developer
Refine by Categories
Engineering  (178) Executive & Management  (41) Accounting  (26) Marketing  (8) Consulting & Corporate Strategy  (7) Other  (7)
Sales  (6) Construction & Trades  (5) Finance  (4) Healthcare & Medical  (4) Scientific  (4) Property  (4) Admin-Clerical  (3) Trainee / Entry Level  (3) Pharmaceutical  (3) Purchasing & Procurement  (3) Transport & Logistics  (3) Government / Public Sector  (2)
More
Refine by Job Type
Full Time  (22) Permanent  (18) Contract  (6)
Refine by Salary Range
£100,000 - £150,000  (3) £150,000 - £200,000  (3)
Refine by Onsite/Remote
Onsite  (45)
Refine by County
Greater London  (12) Belfast  (6) Greater Manchester  (4) Devon  (2) Hertfordshire  (2) Somerset  (2)
Warwickshire  (2) West Sussex  (2) Berkshire  (1) Cheshire East  (1) Cumberland  (1) England  (1) Glasgow City  (1) Lancashire  (1) Nottingham  (1) South Gloucestershire  (1) West Northamptonshire  (1)
More
citi
15 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...
citi
15 Mar, 2026
Full Time
Productivity and Tooling Java Developer - AVP (Belfast)
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. About Us Join the Technology Application Strategy team, where we empower Citi's global developer community to build better, faster, and with greater satisfaction. We are a dynamic and globally distributed team of passionate technologists across London, Belfast, and the US, dedicated to designing, building, and deploying cutting-edge productivity and tooling solutions....
citi
15 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,...
citi
15 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...
citi
15 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
15 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...
Adecco
07 Mar, 2026
Permanent
Senior Android Developer - London
Adecco 39 Holloway Rd, London N7 8JP, UK
Senior Android Developer London (Hybrid - 2 days per week in the office) Salary: 65,000 - 90,000 DOE The Role We're currently looking for a Senior Android Developer to join a growing Mobile team. In this role, you'll help develop and enhance a suite of high-traffic consumer apps used by millions. You'll work within cross-functional squads alongside product managers, designers, and engineers, contributing throughout the entire software development lifecycle, from planning and design through to release and optimisation. About the Company Our client is driven by a clear mission: helping millions of people across the UK save money when it matters most. Through a range of well-established consumer platforms, their products support more than 20 million visitors each month , providing tools and insights that make a real difference to everyday households. Why Join? A supportive, inclusive workplace that encourages open thinking and collaboration...
Adecco
07 Mar, 2026
Permanent
Senior iOS Developer - London
Adecco 39 Holloway Rd, London N7 8JP, UK
Senior iOS Developer London (Hybrid - 2 days per week in the office) Salary: 65,000 - 90,000 DOE The Role We're looking for a Senior iOS Developer to join a growing Mobile team. You'll play a key role in maintaining and evolving a suite of high-traffic consumer apps, working within cross-functional squads alongside product managers, designers, and fellow engineers. You'll be involved throughout the full software development lifecycle, from concept and design through to deployment, while also using modern AI-powered development tools such as GitHub Copilot and ChatGPT to improve efficiency and code quality. What Sets This Company Apart? A dynamic and inclusive working environment that values diversity Talented, high-performing teams focused on delivering exceptional user experiences A culture built around collaboration, where everyone's ideas and perspectives are valued Key Responsibilities Drive the delivery of new features while contributing to...
Adecco
05 Mar, 2026
Permanent
Senior iOS Developer
Adecco 39 Holloway Rd, London N7 8JP, UK
Senior iOS Developer Location: London (Hybrid) Salary: Up to 80,000 DoE Permanent role Why Apply? This organisation helps millions of people make smarter financial decisions through well loved consumer apps used across the UK. The engineering culture is creative, collaborative and ambitious, giving developers the space to experiment, learn and deliver meaningful products that genuinely help people. Engineers end each day knowing they have made a real impact on both users and their team. What makes this environment different A workplace full of personality that values openness, diversity and inclusion. Teams that enjoy solving complex problems together and take pride in delivering world class experiences. A culture where everyone belongs, every idea is welcomed and every voice matters. About the role A Senior iOS Developer is needed to join a Mobile Collective responsible for evolving high traffic consumer apps. They will work in full stack, multi disciplinary...
citi
16 Mar, 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
16 Mar, 2026
Full Time
Technology - Application Development, Placement Analyst, Belfast, 2026
citi Belfast, UK
You are the brains behind our work … At Citi, we do not just adapt to change – we drive it. Our Technology Placement Programme is where forward thinking talents meet unparalleled opportunities. This is your chance to innovate, influence, and make an impact in the most global financial institution! Citi Technology partners to ensure that Citi’s platforms can “Be the Best” for clients globally, with a diverse and ethical workforce that applies innovation and automation to deliver a world class client experience and strengthen our reputation. We have over 30,000 technologists globally who are dedicated to serving our clients’ needs across the firm. By utilising a broad range of technologies, we are at the forefront of innovation. We seek to drive our systems and processes towards scalable, low-latency, high frequency enterprise systems to support Citi’s strategic priorities. We provide you with the knowledge and skills you need to succeed… We are committed to teaching you...
Light & Wonder
15 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...
Light & Wonder
15 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 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
15 Mar, 2026
Full Time
FX eTrading Java Developer - VP
citi London, UK
About Citi As the world’s most global bank, Citi gives you the tools to be a trailblazer. We’re not just building technology; we’re building the future of banking. With thousands of employees located around the globe, we are an international team encompassing a broad range of teams, roles, and cultures, and we invite you to come and join us! Citi’s technology team supports business operations in 100+ countries, across multiple lines of business spanning both Institutional and retail businesses. The group works to optimize the IT environment by standardizing production platforms, reducing complexity, and introducing innovative solutions that provide new business capabilities, reduce total cost of ownership, and create a competitive advantage for Citi. We want to regularly engage with talented individuals who are passionate about producing clean, testable code as part of a high performing team. We have found this to be way more important than experience in the financial...
citi
15 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
15 Mar, 2026
Full Time
Embedded Software Engineer- HF Comms
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...
Thales
15 Mar, 2026
Full Time
Software Architect
Thales Cheadle SK8, UK
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...
Thales
15 Mar, 2026
Full Time
Principle C4I Solution Architect
Thales Templecombe BA8, UK
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...
Thales
15 Mar, 2026
Full Time
Software Configuration Controller
Thales Crawley, UK
Location: Crawley, United Kingdom Thales people architect solutions that enable two-thirds of planes to take off and land safely. We create in-flight entertainment systems that engross 50 million fliers every year and we develop the avionics that control the world’s largest commercial aircrafts. Our simulators train the next generation of pilots for fighter jets, transporters and search and rescue helicopters. And, together, each and every member of our aerospace team makes a difference. 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...
Thales
15 Mar, 2026
Full Time
Senior Software Engineer
Thales Belfast, UK
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...
  • Home
  • About Us
  • Recruitment Blog
  • Terms & Conditions
  • Privacy & Cookies Policy
  • Employer
  • Post a Job
  • Job Board Advertising Packages
  • Diversity, Inclusion & Equality (ED&I) Articles
  • Sign in
  • Contact Us | Recruiters
  • Job Seeker
  • Find Jobs
  • Upload CV
  • Job Seeker Help & Advice
  • Equal Opportunities Monitoring Form
  • Sign in
  • Contact Us | Jobseeker
  • Facebook
  • X / Twitter
  • LinkedIn
© 2026 DIjobs Limited  |  3rd Floor, 86-90 Paul Street, London EC2A 4NE  |  Company Registration: 13316146  |  VAT No: GB 377358650
Diversity Job Board | Inclusion | Equality | ED&I | DEI | EDI | D&I | DEIB | IDEA | BDI | Jobboard | Vacancies | Diversity Jobs | Careers | Jobsite | Diversity and Inclusion Job Boards | Find a New Job | Job Search with DIjobs