Description At Engine by Starling , we are on a mission to find and work with leading banks all around the world who have the ambition to build rapid growth businesses on our technology. Engine is Starling's software-as-a-service (SaaS) business, and is the technology that was built to power Starling Bank. Engine split out as a separate business in early 2024. Starling Bank has seen exceptional growth and success, and a large part of that is down to the fact that we have built our own modern technology from the ground up. This SaaS technology platform is now available to banks and financial institutions all around the world, enabling them to benefit from the innovative digital features, and efficient back-office processes that has helped achieve Starling's success. Our technologists are at the very heart of Engine and enjoy working in a fast-paced environment that is all about building things, creating new stuff, and disruptive technology that keeps us on the cutting edge...

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...

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...

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...

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...

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,...

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...

Junior Software Developer / Engineer (Rust HFT) London / WFH to £90k Are you a bright, ambitious Software Engineer with a first class education? You could be progressing your career at a hugely profitable High Frequency Trading firm that specialise in crypto markets. As a Junior Software Developer / Engineer you will design and develop backend services for real-time risk, pricing, trading engines and market making systems, working across the full software development lifecycle using Rust. You'll collaborate with a small, talented team, collaboratively problem solving and working on complex and challenging systems with interesting work and huge bonus earning potential. Location / WFH: You'll join the team in Central London with flexibility to work from home twice a week. About you: You achieved a 2.1 or above in Computer Science or Software Engineering from a top tier university i.e. Oxbridge, Russel Group You have backend OOP,...

Description At Engine by Starling , we are on a mission to find and work with leading banks all around the world who have the ambition to build rapid growth businesses, on our technology. Engine is Starling's software-as-a-service (SaaS) business, the technology that was built to power Starling Bank, and a year ago we split out as a separate business. Starling has seen exceptional growth and success, and a large part of that is down to the fact that we have built our own modern technology from the ground up. The Engine technology platform is now available to banks and financial institutions all around the world, enabling them to benefit from the innovative digital features, and efficient back-office processes that has helped achieve Starling's success. Our technologists are at the very heart of Engine and enjoy working in a fast-paced environment that is all about building things, creating new stuff, and disruptive technology that keeps us on the cutting edge of fintech. We...

Security Architect (AppSec Greenfield) London / WFH to £120k Do you have expertise with securing modern, cloud based systems? You could be progressing your career in a senior, hands-on role leadership role at a fast growing, global Insurance Underwriting technology provider that focusses on developing a complex SaaS calculation platform for rapidly growing Cyber Security insurance markets. What's in it for you: Salary to £120k + bonus 25 days holiday Private Medical Insurance (including dental and optical cashback) Life Insurance, Income Protection Pension Subsidised gym membership X4 paid volunteering days per year Season ticket loan Employee Assistance Programme Impactful role with great career progression Your role: As the Security Architect you'll partner with the CISO as the company embarks on a major transformation of its core platforms and systems, you'll ensure these changes are secure, resilient...

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...

Flight Software Engineer Up to 65,000 Competitive Benefits Package Remote Working Permanent Candidates must be eligible to obtain a SC clearance. Candidates must have right to workin the Uk, no sponsorship is offered. We are looking for a talented Flight Software Engineer to join a fast-growing AI and robotics safety start-up. The business is expanding its engineering team as it continues to build cutting-edge assurance systems for AI-enabled robotics and autonomous systems . The company is developing advanced safety and assurance technology designed to ensure autonomous systems operate safely, predictably and with optimal performance. Their solutions focus on robotics and AI applications where reliability and safety are critical. You will play a key role in developing software components that enable safe and reliable operation of autonomous robotic systems within the company's robotics platform. Working closely with cross-functional teams across embedded systems,...

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...

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....

C# .NET Developer Contract Daily Rate: 600 - 650 (inside IR35 via umbrella) Contract Length: 6 months initially Location: Hybrid Working - 2/3 days onsite per week Our client, a leading organisation in the tech sector, is seeking a talented C# .NET Developer to join their dynamic team on a contract basis. If you are passionate about software development and are eager to tackle exciting challenges, we want to hear from you! Key Responsibilities: As a C# .NET Developer, you will: Understand business requirements and design applications that meet those needs. Engage in business data analysis to inform application design and development. programme in Visual C#.NET while utilising both Oracle and SQL Server databases. Conduct unit testing and ensure quality assurance (QA) for all developed applications. Implement solutions in production and disaster recovery environments, providing support to users. Prepare and maintain technical documentation related to your projects. In...

Power Platform Technical Architect Based at client locations, working remotely, or based in our Godalming or Milton Keynes offices. Salary Up to 80k plus company benefits. About Us Triad Group Plc is an award-winning digital, data, and solutions consultancy with over 35 years' experience primarily serving the UK public sector and central government. We deliver high-quality solutions that make a real difference to users, citizens and consumers. At Triad, collaboration thrives, knowledge is shared, and every voice matters. Our close-knit, supportive culture ensures you're valued from day one. Whether working with cutting-edge tech or shaping strategy for national-scale projects, you'll be trusted, challenged, and empowered to grow. We nurture learning through communities of practice and encourage creativity, autonomy, and innovation. If you're passionate about solving meaningful problems with smart and passionate people, Triad could be the place for you. Glassdoor...

Job Description: Job Purpose The Quantitative Analyst will join the Global Quantitative Research Group, which designs, implements, and supports enterprise quantitative models and systems. This role blends quantitative research and data science, focusing on model development, risk analytics, and large-scale data engineering. The primary responsibility is to drive quantitative model initiatives for clearing houses while supporting data-driven solutions across multiple business lines. The candidate must demonstrate strong quantitative and programming skills, deep understanding of financial derivatives, and the ability to manage complex data workflows. Frequent interaction with Risk Management, Technology, and Senior Management is expected.   Responsibilities Lead research and development of margin, stress testing, and risk management models for clearing houses. Perform quantitative risk analysis and develop solutions across multiple asset classes (interest rate, equity,...