> Markdown version of [/jobs/ext/2494662-fx-client-platforms-senior-ui-software-engineer-vice-president](https://www.wearedevelopers.com/jobs/ext/2494662-fx-client-platforms-senior-ui-software-engineer-vice-president). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # FX Client Platforms - Senior UI Software Engineer (Vice President) - **Company:** Citigroup Inc. - **Location:** London, UK (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Agile Methodology, Artificial Intelligence, Application Integration Architecture, HTML5, Automation of Tests, Cascading Style Sheets (CSS), Profiling, Code Review, Memory Management, Java GUIs, Enterprise Messaging Systems, Software Engineering, TypeScript, Web Applications, WebSocket, Test-Driven Development (TDD), GitHub Copilot, ReactJS, Apache Kafka, Data Delivery, Restful APIs, Es2015, TIBCO (Software), Jenkins - **Published:** August 4, 2026 - **Apply:** https://dejobs.org/x/x/07991DB2853F409BB68F7128EC2A77FD/job/ ## About the Role * Solid experience building and deploying complex web application platforms in production * Expert-level proficiency in TypeScript, React, HTML5, CSS, and JavaScript (ES6+) * Demonstrated experience profiling and optimising high throughput React applications (Web Workers, virtual rendering, memory management) * Experience with desktop containers: Chromium, Electron, or OpenFin ; familiarity with FDC3 for cross-application interoperability * Experience with real-time messaging systems: Kafka, Solace, or Tibco * Experience with CI/CD pipelines (Jenkins or equivalent) and Agile methodologies * Strong communication skills with experience in globally distributed teams Desirable * Experience building real-time trading platforms * FX or Fixed Income product knowledge * Java REST API development experience * Familiarity with AI-assisted development tools ## Description We are seeking a Senior Applications Developer to join a team delivering pricing solutions for the Foreign Exchange (FX) business. You will cover the full software development lifecycle - analysis, design, implementation, and testing - while providing technical leadership to the team., * Design and develop high-quality trading GUIs providing compelling user experiences for internal and external traders * Define and enforce interoperability standards across web applications using FDC3, and REST/WebSocket APIs. Experience with OpenFin or Interop is desirable but not essential. * Drive AI integration within the development lifecycle - including AI-assisted coding, automated test generation, and intelligent monitoring * Influence performance engineering across the UI stack: profiling, rendering optimisation, bundle analysis, and low-latency data delivery * Contribute and influence architecture decisions for large-scale front-end systems, including monorepo governance and design system adoption across globally distributed teams * Champion best practices in TDD, code review, and AI-assisted development tooling (e.g., GitHub Copilot) * Liaise with UI leads, UX, Product, and Sales groups to translate business requirements into robust technical solutions * Mentor junior engineers and contribute to team growth and delivery standards ## Related Videos - [Microservices architecture as a key element in building trading systems for global finance markets](https://www.wearedevelopers.com/videos/1196-microservices-architecture-as-a-key-element-in-building-trading-systems-for-global-finance-markets) - [The Road to MLOps: How Verivox Transitioned to AWS](https://www.wearedevelopers.com/videos/1050-the-road-to-mlops-how-verivox-transitioned-to-aws) - [The Resilience of the World Wide Web](https://www.wearedevelopers.com/videos/1281-the-resilience-of-the-world-wide-web) - [Enterprise-Cloud-Native - Fast-Paced Development & Deployment in a Highly Secure Banking Environment](https://www.wearedevelopers.com/videos/671-enterprise-cloud-native-fast-paced-development-deployment-in-a-highly-secure-banking-environment) - [Next Level Enterprise Architecture: Modular, Flexible, Scalable, Multichannel and AI-Ready?](https://www.wearedevelopers.com/videos/1017-next-level-enterprise-architecture-modular-flexible-scalable-multichannel-and-ai-ready) - [Our GitOps approach for deploying an Identity Provider and an API Gateway in a SaaS company](https://www.wearedevelopers.com/videos/776-our-gitops-approach-for-deploying-an-identity-provider-and-an-api-gateway-in-a-saas-company) ## Related Articles - [React Developer Salary [2023]](https://www.wearedevelopers.com/magazine/198-react-developer-salary-2023) - [How Much FAANG Companies Actually Pay Software Engineers in 2025](https://www.wearedevelopers.com/magazine/230-how-much-faang-companies-actually-pay-software-engineers-in-2025) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Best Companies to work for in London: Top 25 Companies in 2023](https://www.wearedevelopers.com/magazine/187-best-companies-to-work-for-in-london-top-25-companies-in-2023) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers)