Senior FX UI React Developer

📍 Job Overview

Job Title: Senior FX UI React Developer

Company: Barclays

Location: Prague, Czechia (Gemini Building B)

Job Type: FULL_TIME

Category: Front-End Development / Software Engineering (within Financial Services Operations)

Date Posted: 2026-05-21

Experience Level: 5-10 Years

Remote Status: On-site

🚀 Role Summary

• Design, develop, and enhance high-quality, scalable, and maintainable software solutions for the Foreign Exchange (FX) trading platform.

• Drive architectural decisions, lead large-scale refactorings, and establish best practices for a shared codebase, ensuring technical excellence and innovation.

• Collaborate closely with Product Managers, Designers, and fellow Engineers to translate business requirements into robust technical solutions.

• Implement and champion secure coding practices, robust testing methodologies (unit, component, E2E), and adhere to industry-aligned programming standards.

• Contribute to a culture of continuous learning, knowledge sharing, and technical excellence within the engineering community, staying abreast of emerging technology trends.

📝 Enhancement Note: While the title specifies "Developer," the "Senior" level, "Vice President Expectations" section, and emphasis on architectural decisions and strategic contributions strongly indicate this role operates at a level demanding significant influence and ownership, aligning it with senior individual contributor or technical lead roles within a GTM or operational technology context. The focus on FX UI implies a critical component of the firm's revenue-generating technology stack.

📈 Primary Responsibilities

• Develop and deliver high-quality software solutions using React and TypeScript, focusing on scalability, maintainability, and performance optimization.

• Implement advanced component patterns, custom hooks, context architecture, and error boundaries to ensure robust and efficient UI development.

• Manage server state effectively through TanStack React Query and Apollo Client (GraphQL), ensuring seamless data flow and user experience.

• Design and implement comprehensive testing strategies using Vitest, React Testing Library, and Playwright for unit, component, and end-to-end testing.

• Lead architectural discussions, drive consensus on technical direction, and implement patterns that enhance code quality and consistency across the shared codebase.

• Collaborate effectively with cross-functional teams, including product management and design, to define software requirements and align technical solutions with business objectives.

• Participate actively in code reviews, providing constructive feedback to peers and promoting a culture of shared ownership and technical excellence.

• Adhere to secure coding practices, mitigating vulnerabilities and protecting sensitive financial data within the FX platform.

• Contribute to the adoption of modern development tools and methodologies, such as Vite, pnpm monorepos, and micro-frontend architectures, to enhance development efficiency and scalability.

• Make pragmatic UI and accessibility decisions, ensuring a user-friendly and inclusive experience for all stakeholders.

• Develop and maintain CI/CD pipelines, containerization strategies (Docker, Kubernetes), and other DevOps practices to streamline the software delivery lifecycle.

📝 Enhancement Note: The "Vice President Expectations" section indicates this role carries significant strategic weight. For an individual contributor, it means being a subject matter expert guiding technical direction and influencing long-term decisions. For those with leadership potential, it involves setting strategy, managing resources, and developing talent, all within the context of the FX technology domain.

🎓 Skills & Qualifications

Education: While no specific degree is mandated, a Bachelor's or Master's degree in Computer Science, Software Engineering, or a related technical field is typically expected for a Senior Developer role in financial services. Equivalent practical experience will also be considered.

Experience: 5-10 years of professional experience in front-end development, with a strong focus on building complex, high-performance web applications, preferably within the financial services or FinTech industry.

Required Skills:

• React & TypeScript Mastery: Deep expertise in React, including custom hooks, advanced component patterns, performance optimization techniques, error boundaries, and context architecture. Strict adherence to TypeScript for robust type safety.

• Server State Management: Proven experience with TanStack React Query and/or Apollo Client (GraphQL) for efficient management of server-side data.

• Testing Frameworks: Strong proficiency in modern testing libraries and tools, including Vitest, React Testing Library for unit/component testing, and Playwright for end-to-end (E2E) testing. Experience with test architecture, fixture design, and API mocking strategies.

• Design Patterns & Code Quality: Solid understanding of established Design Patterns, code quality principles, and best practices for writing clean, maintainable, and scalable code.

• Architectural Leadership: Demonstrated ability to independently drive architectural decisions, lead large-scale refactorings, and establish consistent patterns across a shared codebase.

• Problem-Solving: Analytical mindset with the ability to define complex problems and develop innovative, efficient solutions.

Preferred Skills:

• Modern Tooling: Experience with Vite, pnpm monorepos, and micro-frontend architecture.

• UI Libraries & Validation: Familiarity with AG Grid for data grids, React Hook Form for form management, and Zod for schema validation.

• DevOps & Containerization: Knowledge of DevOps tools and practices, including CI/CD pipelines, containerization with Docker, and orchestration with Kubernetes.

• UX & Accessibility: Strong UX sensibility with the ability to make pragmatic UI and accessibility decisions.

• Automation: Scripting and automation skills for CI workflows, tooling, and code generation.

📝 Enhancement Note: The emphasis on "strict TypeScript," "custom hooks," "advanced component patterns," "performance optimisation," and "context architecture" highlights the need for deep, practical expertise beyond basic React knowledge. The requirement for Playwright experience, including its architecture and API mocking, signifies a mature approach to testing and development.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Case Studies: Showcase at least 2-3 detailed case studies demonstrating your involvement in significant software development projects, ideally within financial services or complex UI environments.

• Architectural Contributions: Highlight examples where you've influenced or driven architectural decisions, led refactorings, or established coding patterns. Quantify the impact where possible (e.g., performance improvements, reduction in bugs).

• Testing Strategy: Include examples of your approach to testing, showcasing your experience with Vitest, React Testing Library, and Playwright. Demonstrate how you've improved test coverage, efficiency, or reliability.

• Technology Showcase: Provide evidence of your proficiency with key technologies like React, TypeScript, GraphQL, and relevant state management libraries.

Process Documentation:

• Workflow Design & Optimization: Be prepared to discuss how you've designed or optimized development workflows, including CI/CD processes, code review practices, and agile methodologies.

• System Implementation: Describe your experience implementing new systems or features, focusing on the integration challenges, technical decisions, and successful outcomes.

• Measurement & Analysis: Demonstrate how you measure the success of your work, using metrics related to performance, stability, user adoption, and business impact. Be ready to present data-driven insights.

📝 Enhancement Note: For a senior role, the portfolio should not just list technologies but demonstrate a deep understanding of how and why specific processes and technologies were chosen and implemented, with a clear focus on measurable outcomes and impact on the business, particularly within a high-stakes environment like FX trading.

💵 Compensation & Benefits

Salary Range: Based on industry benchmarks for Senior React Developers in Prague with 5-10 years of experience in the financial sector, a competitive annual gross salary range would likely be between €75,000 - €100,000 (approximately 1,850,000 - 2,450,000 CZK). This estimate considers the senior level, specialized skills (React, TypeScript, GraphQL), and the demanding financial services industry.

Benefits:

• Comprehensive Health Coverage: Including medical, dental, and vision insurance.

• Retirement Savings Plan: Company-sponsored pension or savings schemes.

• Performance Bonuses: Annual bonus potential tied to individual and company performance.

• Professional Development: Opportunities for training, certifications, and attendance at industry conferences.

• Paid Time Off: Generous vacation, sick leave, and public holidays.

• Employee Assistance Program: Confidential support for personal and professional well-being.

• Modern Office Environment: Access to state-of-the-art facilities in Prague.

• Potential for Stock Options/Awards: Depending on seniority and specific role within Barclays.

Working Hours: Standard full-time hours are typically 40 hours per week. While the role is on-site, Barclays often offers flexibility in start and end times, subject to team coordination and business needs, particularly to accommodate collaboration with global teams.

📝 Enhancement Note: The salary estimate is based on research of senior developer roles in Prague across various tech sectors, adjusted upwards for the specialized financial services domain and the seniority implied by "Senior" and "Vice President Expectations." The CZK equivalent is provided for local context. Benefits are typical for large multinational financial institutions.

🎯 Team & Company Context

🏢 Company Culture

Industry: Financial Services (Investment Banking, Trading). Barclays operates at the forefront of global finance, providing a wide range of products and services across retail banking, corporate banking, and investment banking. The FX division is a critical revenue-generating unit, demanding high performance, reliability, and innovation in its technology.

Company Size: Large (Global Enterprise). Barclays is a major international bank with tens of thousands of employees worldwide, offering extensive career opportunities and a structured corporate environment.

Founded: 1800s. With a long and rich history, Barclays has established itself as a stable and reputable institution, continuously adapting to market changes and technological advancements.

Team Structure:

• FX Technology Team: This role sits within the FX technology division, likely composed of multiple sub-teams focusing on different aspects of the trading platform (e.g., pricing, execution, risk management, UI).

• Reporting Structure: As a Senior Individual Contributor, you would report to a Technology Lead or Engineering Manager. The "Vice President Expectations" suggest a hierarchy that includes Vice President-level oversight.

• Cross-functional Collaboration: Close collaboration with Product Managers, Business Analysts, UX/UI Designers, QA Engineers, and other Development teams (both front-end and back-end) is integral to the role.

Methodology:

• Agile Development: Barclays typically employs Agile methodologies (Scrum, Kanban) for software development, emphasizing iterative progress, collaboration, and adaptability.

• Data-Driven Decision Making: Emphasis on using data analytics and performance metrics to inform technical decisions, drive improvements, and measure impact.

• DevOps Culture: A growing focus on integrating development and operations to improve efficiency, speed up delivery, and enhance system reliability through automation and continuous improvement.

Company Website: https://www.home.barclays/

📝 Enhancement Note: The context of Barclays as a global financial institution is crucial. Operations professionals here must understand the high stakes, regulatory environment, and the need for robust, secure, and performant systems that directly impact revenue and client trust.

📈 Career & Growth Analysis

Operations Career Level: This is a Senior Individual Contributor role within the technology function, specifically focused on front-end development for a critical business area (FX Trading). It sits above mid-level developer roles and requires a high degree of autonomy, technical expertise, and the ability to influence technical direction. It can be a stepping stone to a Technical Lead, Architect, or potentially a management track if leadership aspirations are demonstrated and developed.

Reporting Structure: You will likely report to an Engineering Manager or VP of Engineering, working within a dedicated FX technology team. You will also collaborate extensively with product owners and business stakeholders.

Operations Impact: As a Senior FX UI React Developer, your work directly impacts the functionality, performance, and user experience of the FX trading platform. This has a direct bearing on trader efficiency, client satisfaction, and ultimately, the firm's revenue generation and competitive positioning in the FX market.

Growth Opportunities:

• Technical Specialization: Deepen expertise in React, TypeScript, GraphQL, and related front-end technologies, becoming a go-to subject matter expert within Barclays.

• Architectural Leadership: Progress to a Software Architect or Principal Engineer role, taking ownership of the technical vision and strategy for larger components or the entire FX UI.

• Team Leadership: Transition into a Team Lead or Engineering Manager role, guiding and mentoring development teams, managing projects, and overseeing resource allocation.

• Cross-Functional Exposure: Gain exposure to other areas of the FX business, such as trading desks, risk management, or other technology domains (e.g., back-end, data engineering), broadening your understanding of the financial ecosystem.

• Industry Certifications & Conferences: Opportunities to attend industry events, pursue advanced certifications, and stay at the cutting edge of FinTech development.

📝 Enhancement Note: The "Vice President Expectations" section clearly outlines a path for growth, whether through deepening technical expertise as an individual contributor or developing leadership skills. The emphasis on strategic thinking and influencing stakeholders is key for progression.

🌐 Work Environment

Office Type: On-site, within a modern, professional office building (Gemini Building B, Prague). This indicates a traditional corporate environment designed for collaboration, focus, and access to necessary infrastructure.

Office Location(s): Prague, Czechia. This location offers a vibrant tech scene and access to a skilled talent pool. The specific building suggests a dedicated Barclays hub.

Workspace Context:

• Collaborative Spaces: Expect access to meeting rooms, breakout areas, and potentially open-plan office layouts designed to foster interaction and teamwork among developers and other departments.

• Technology & Tools: A well-equipped workspace with high-performance computing resources, multiple monitors, and access to all necessary software licenses and development tools.

• Team Interaction: Regular opportunities for face-to-face interaction with your immediate development team, product managers, and other stakeholders, facilitating efficient communication and problem-solving.

Work Schedule: The standard 40-hour work week is expected. While on-site, there may be some flexibility in daily hours, but adherence to core business hours and team synchronization is paramount, especially given the global nature of FX trading where support may be required across different time zones.

📝 Enhancement Note: The on-site requirement in a specific building points to a structured work environment common in large financial institutions, emphasizing security, collaboration, and consistent access to resources.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: HR or recruiter call to assess basic qualifications, cultural fit, and salary expectations.

• Technical Assessment: This will likely involve a coding challenge (potentially live or take-home) focusing on React, TypeScript, and problem-solving skills. Expect questions on data structures, algorithms, and front-end best practices.

• Technical Deep Dive: An interview with senior engineers or architects to discuss your experience in depth, focusing on your contributions to previous projects, architectural decisions, and your approach to complex technical challenges.

• Portfolio Review: A dedicated session where you will present selected case studies from your portfolio, explaining your role, the challenges faced, the solutions implemented, and the measurable impact.

• Behavioral Interview: Questions assessing your leadership potential, collaboration skills, problem-solving approach, and alignment with Barclays' values and culture (Respect, Integrity, Service, Excellence, Stewardship). Expect questions related to risk management and change management.

• Final Interview: Potentially with a VP or Director level stakeholder to discuss strategic alignment, long-term vision, and overall fit for the role and company.

Portfolio Review Tips:

• Structure Your Case Studies: For each case study, clearly define the problem, your specific contribution, the technologies and patterns used, the challenges encountered, the solution implemented, and the quantifiable results (e.g., performance improvements, bug reduction, efficiency gains).

• Focus on Impact: Emphasize the business impact of your work. How did your contributions to the FX UI benefit traders, clients, or the firm's bottom line?

• Demonstrate Technical Depth: Be prepared to explain the "why" behind your technical choices. Why did you choose a specific React pattern? Why use Apollo Client over another solution? How did your testing strategy mitigate risks?

• Highlight Leadership & Collaboration: Showcase instances where you influenced technical direction, mentored junior developers, or collaborated effectively with cross-functional teams.

• Tailor to Barclays: Research Barclays' values and recent developments in their financial technology. Frame your experience and portfolio examples to resonate with their strategic goals and operational priorities.

Challenge Preparation:

• Coding Exercises: Practice advanced React concepts, TypeScript, state management, and common algorithm/data structure problems. Familiarize yourself with testing frameworks like Vitest and React Testing Library.

• System Design: Be prepared for system design questions related to building scalable and performant front-end architectures, micro-frontends, and efficient data handling.

• Scenario-Based Questions: Think about how you would approach common challenges like dealing with legacy code, improving performance bottlenecks, implementing new features with tight deadlines, or resolving complex bugs.

📝 Enhancement Note: The "Vice President Expectations" section strongly suggests that the interview process will delve into strategic thinking, risk management, and the ability to influence across functional areas, not just technical execution.

🛠 Tools & Technology Stack

Primary Tools:

• React: The core JavaScript library for building user interfaces.

• TypeScript: Essential for building robust, scalable, and maintainable applications through static typing.

• TanStack React Query: For efficient server state management, caching, and synchronization.

• Apollo Client: A popular GraphQL client for managing data fetching, caching, and state.

• Vitest: A fast, modern unit testing framework for JavaScript and TypeScript.

• React Testing Library: For writing user-centric unit and integration tests for React components.

• Playwright: A powerful end-to-end testing framework for automating web applications across modern browsers.

Analytics & Reporting:

• Internal Barclays Analytics Tools: Likely proprietary dashboards and reporting systems for monitoring application performance, user behavior, and business KPIs.

• Monitoring Tools: Potentially tools like Datadog, New Relic, or similar for real-time application performance monitoring (APM).

CRM & Automation:

• Jira/Confluence: Standard tools for project management, issue tracking, and documentation within Agile environments.

• CI/CD Tools: Jenkins, GitLab CI, GitHub Actions, or similar for automating build, test, and deployment pipelines.

• Containerization: Docker for creating and managing containerized applications.

• Orchestration: Kubernetes for automating the deployment, scaling, and management of containerized applications.

📝 Enhancement Note: The explicit mention of TanStack React Query, Apollo Client, Vitest, React Testing Library, and Playwright indicates a modern, sophisticated front-end development stack. Experience with Vite, pnpm monorepos, and micro-frontends is also highly valued.

👥 Team Culture & Values

Operations Values:

• Respect: Treating colleagues, clients, and stakeholders with dignity and professionalism.

• Integrity: Upholding the highest ethical standards in all actions and decisions, crucial in the financial sector.

• Service: Committing to delivering excellent service to internal and external customers, ensuring their needs are met efficiently and effectively.

• Excellence: Striving for the highest standards of quality, performance, and innovation in all aspects of work.

• Stewardship: Acting responsibly with company resources, data, and reputation, with a focus on long-term sustainability and risk management.

Collaboration Style:

• Cross-Functional Integration: Strong emphasis on working collaboratively with product management, design, QA, and other engineering teams to ensure seamless development and delivery of features.

• Open Communication: Encouraging open dialogue, constructive feedback, and proactive communication to resolve issues and drive progress.

• Knowledge Sharing: Actively participating in code reviews, team discussions, and potentially internal tech talks to share expertise and foster collective growth.

📝 Enhancement Note: The emphasis on Barclays' core values is paramount. For an operations-focused role, demonstrating how these values translate into daily work, decision-making, and interactions is key. For example, "Integrity" and "Stewardship" directly relate to secure coding and risk management in financial technology.

⚡ Challenges & Growth Opportunities

Challenges:

• Legacy Code Modernization: Integrating modern React/TypeScript practices with existing, potentially older, parts of the FX platform, requiring careful refactoring and architectural planning.

• High-Frequency Data Handling: Developing UI components that can efficiently and reliably display and interact with high-volume, real-time financial data streams.

• Complex Business Logic: Translating intricate FX trading rules, regulations, and market dynamics into intuitive and functional user interfaces.

• Global Stakeholder Management: Collaborating effectively with diverse teams and stakeholders across different time zones and cultural backgrounds.

• Security & Compliance: Adhering to stringent security protocols and financial regulations inherent in the banking industry.

Learning & Development Opportunities:

• Advanced FinTech Development: Gaining deep expertise in the specific technologies and challenges of financial trading platforms.

• Architectural Design: Opportunities to contribute to and lead the design of complex, scalable, and resilient software architectures.

• Mentorship Programs: Access to senior engineers and leaders for guidance, career advice, and skill development.

• Industry Exposure: Staying current with emerging trends in financial technology, UI/UX, and software engineering through internal resources and external events.

📝 Enhancement Note: Understanding these challenges allows candidates to proactively prepare and frame their experiences as solutions to these potential hurdles, demonstrating foresight and problem-solving capabilities relevant to the FX domain.

💡 Interview Preparation

Strategy Questions:

• "Describe a complex architectural decision you led or significantly influenced. What were the trade-offs, and what was the outcome?" (Focus on your reasoning, impact, and ability to manage technical debt/risk).

• "How would you approach optimizing the performance of a React application that displays real-time, high-volume data?" (Prepare to discuss techniques like virtualization, memoization, efficient state management, and data fetching strategies).

Company & Culture Questions:

• "How do Barclays' values (Respect, Integrity, Service, Excellence, Stewardship) align with your own professional principles, especially in a financial services context?" (Connect your experiences to these values, particularly regarding risk, ethics, and client focus).

• "Describe a time you had to collaborate with a challenging stakeholder or team. How did you ensure alignment and achieve project goals?" (Highlight your communication, negotiation, and problem-solving skills).

Portfolio Presentation Strategy:

• Start with the 'Why': Clearly articulate the business problem or opportunity your project addressed.

• Detail Your Role & Contribution: Be specific about what you did, the technical challenges you overcame, and the decisions you made.

• Showcase Technical Solutions: Use diagrams or code snippets (if appropriate and non-confidential) to illustrate key architectural patterns, complex components, or testing strategies.

• Quantify Impact: Present metrics on performance improvements, bug reductions, efficiency gains, or user adoption. Use charts or graphs if possible.

• Be Ready for Deep Dives: Anticipate detailed questions about your technical choices, trade-offs, and lessons learned.

📝 Enhancement Note: The "Vice President Expectations" and the nature of a Senior role in finance dictate that interviews will heavily scrutinize strategic thinking, risk awareness, and the ability to influence decisions, not just coding proficiency.

📌 Application Steps

To apply for this Senior FX UI React Developer position:

• Submit your application through the provided Workday link: https://barclays.wd3.myworkdayjobs.com/External_Career_Site_Barclays/job/Gemini-Building-B-Prague/Senior-FX-UI-React-Developer_JR-0000102383

• Tailor Your Resume: Customize your resume to highlight specific experience with React, TypeScript, GraphQL, state management libraries (React Query, Apollo Client), testing frameworks (Vitest, React Testing Library, Playwright), and any financial industry experience. Use keywords from the job description.

• Curate Your Portfolio: Select 2-3 of your strongest projects that best demonstrate your skills in architectural decision-making, complex UI development, performance optimization, and robust testing. Prepare concise descriptions and be ready to present them.

• Prepare for Technical & Behavioral Interviews: Practice coding challenges, system design questions, and behavioral questions that align with Barclays' values and the role's responsibilities. Rehearse your portfolio presentation.

• Research Barclays FX Technology: Understand the company's position in the FX market, their technology initiatives, and their core values to articulate your fit and enthusiasm effectively.

⚠️ Important Notice: This enhanced job description includes AI-generated insights and operations industry-standard assumptions. All details should be verified directly with the hiring organization before making application decisions.