FX UI React Developer

📍 Job Overview

Job Title: FX UI React Developer

Company: Barclays

Location: Gemini Building B, Prague, Czechia

Job Type: FULL_TIME

Category: Software Engineering / Front-End Development (with Finance focus)

Date Posted: May 11, 2026

Experience Level: 5-10 years

Remote Status: On-site

🚀 Role Summary

• Spearhead the evolution of Barclays' digital landscape by developing and improving high-quality software solutions for Foreign Exchange (FX) user interfaces.

• Drive innovation and excellence in digital offerings through proficient application of React and strict TypeScript programming.

• Collaborate cross-functionally with product managers, designers, and engineers to define software requirements and ensure seamless integration with business objectives.

• Foster a culture of technical excellence through code reviews, knowledge sharing, and staying informed of industry technology trends.

• Implement secure coding practices and robust testing methodologies to ensure scalable, maintainable, and optimized software solutions.

📝 Enhancement Note: While the job title is "FX UI React Developer," the responsibilities and desired skills indicate a role deeply involved in front-end development within the financial services sector, specifically focusing on Foreign Exchange trading platforms. The "Assistant Vice President Expectations" section suggests this role may involve leadership or significant individual contribution at a senior level, requiring strategic input and mentorship. The operations aspect comes into play through the development of systems that support critical business functions and require high levels of reliability, security, and performance.

📈 Primary Responsibilities

• Design, develop, and deliver scalable, maintainable, and performant software solutions for FX User Interfaces using React and strict TypeScript, including custom hooks, advanced component patterns, and context architecture.

• Implement robust server state management using TanStack React Query and Apollo Client (GraphQL) to ensure efficient data fetching and synchronization.

• Lead architectural decisions, drive large-scale refactorings, and establish coding patterns across a shared codebase, ensuring code quality and consistency.

• Collaborate closely with Product Managers and UX/UI Designers to translate business requirements and design specifications into functional, user-friendly, and accessible front-end components.

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

• Actively participate in code reviews, providing constructive feedback to peers and promoting best practices in code quality, design patterns, and secure coding.

• Stay abreast of emerging industry technology trends, particularly in financial trading platforms and front-end development, and contribute to internal knowledge-sharing communities.

• Implement and advocate for secure coding practices to mitigate vulnerabilities and protect sensitive financial data within the FX platform.

• Contribute to the continuous improvement of development processes, including CI/CD pipelines, containerization (Docker, Kubernetes), and micro-frontend architectures.

📝 Enhancement Note: The responsibilities are heavily focused on advanced front-end development within a specific financial domain (FX). The "Assistant Vice President Expectations" section implies a significant level of autonomy, strategic input, and potential team leadership, requiring not just technical execution but also process oversight and decision-making. This role will require a deep understanding of how front-end architecture impacts the overall operational efficiency and user experience of a trading platform.

🎓 Skills & Qualifications

Education: Bachelor's degree in Computer Science, Software Engineering, or a related field, or equivalent practical experience.

Experience: 5-10 years of professional experience in front-end software development, with a strong emphasis on React and TypeScript. Proven experience in leading complex development initiatives and contributing to architectural decisions.

Required Skills:

• Advanced React Proficiency: Deep expertise in React, including custom hooks, advanced component patterns, performance optimization techniques, error boundaries, and context architecture.

• Strict TypeScript: Mastery of TypeScript programming, ensuring type safety, maintainability, and scalability in large codebases.

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

• Testing Frameworks: Strong knowledge and practical experience with Vitest and React Testing Library for unit and component testing, and Playwright for end-to-end testing.

• Design Patterns & Code Quality: Solid understanding of common JavaScript/React design patterns, code quality principles, and best practices for writing clean, maintainable, and readable code.

• Secure Coding Practices: Demonstrated ability to write secure code and mitigate common web vulnerabilities.

• Problem-Solving & Architecture: Ability to independently drive architectural decisions, lead large-scale refactorings, and establish patterns across a shared codebase.

Preferred Skills:

• Build Tools & Monorepos: Experience with Vite, pnpm monorepos, and micro-frontend architecture.

• Component Libraries & Form Handling: Familiarity with AG Grid, React Hook Form, and Zod schema validation.

• DevOps & CI/CD: 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: Scripting and automation skills for CI workflows, tooling, and code generation.

• Financial Domain Knowledge: Experience in financial services, particularly in Foreign Exchange (FX) trading platforms, is highly advantageous.

📝 Enhancement Note: The experience level (5-10 years) combined with "Assistant Vice President Expectations" suggests a senior individual contributor role with significant influence on technical direction and mentorship capabilities. The emphasis on specific libraries like TanStack React Query, Apollo Client, Playwright, and Vite points to a modern, performance-focused front-end stack.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Demonstrated React/TypeScript Projects: Showcase complex front-end applications built with React and TypeScript, highlighting architectural decisions, component design, and state management strategies.

• Server State Management Implementation: Provide examples of how TanStack React Query or Apollo Client were used to manage server state effectively in previous projects.

• Testing Strategy Examples: Include code samples or case studies demonstrating comprehensive testing approaches using Vitest, React Testing Library, and Playwright.

• Architectural Contributions: Detail instances where you've led architectural decisions, refactored large codebases, or established coding patterns for shared libraries or applications.

• Performance Optimization Case Studies: Present evidence of performance improvements achieved through code optimization, lazy loading, or other front-end performance techniques.

Process Documentation:

• Workflow Design & Optimization: Document the process of designing and optimizing front-end workflows, from requirement gathering to implementation and deployment.

• Implementation & Automation: Showcase examples of how you've automated development processes, CI/CD pipelines, or tooling.

• Measurement & Analysis: Demonstrate how you measure the impact of your work, including performance metrics, user feedback, and adoption rates of new features or patterns.

📝 Enhancement Note: For a senior developer role, especially in finance, a portfolio demonstrating not just coding ability but also architectural leadership, strategic thinking, and a deep understanding of development processes and testing is crucial. The ability to articulate the "why" behind technical decisions and their impact on business outcomes will be key.

💵 Compensation & Benefits

Salary Range: Based on industry benchmarks for a Senior/Assistant Vice President level FX UI React Developer in Prague, Czechia, with 5-10 years of experience, the estimated annual salary range is likely between CZK 1,200,000 - CZK 2,000,000 (approximately €48,000 - €81,000, subject to exchange rates). This range accounts for the specialized skills in React, TypeScript, GraphQL, financial technology, and the senior level of responsibility.

Benefits:

• Comprehensive health and wellness programs, including medical insurance and mental health support.

• Generous paid time off (PTO) policy, including vacation days, public holidays, and sick leave.

• Retirement savings plan with company matching contributions.

• Opportunities for professional development, including training, certifications, and conference attendance.

• Employee assistance programs and financial planning resources.

• Access to employee discounts and corporate benefits.

• Potential for performance-based bonuses and incentives.

• Modern office facilities with amenities to support employee well-being and productivity.

Working Hours: Standard working hours are typically 40 hours per week, with potential for flexibility. While the role is on-site, there may be opportunities for occasional remote work or flexible scheduling, subject to team and business needs. Overtime may be required during critical project phases or for urgent issue resolution.

📝 Enhancement Note: The salary range is an estimation based on typical compensation for senior software engineers in Prague within the financial technology sector. Actual compensation will depend on the candidate's specific experience, skill set, and performance during the interview process. Barclays is a major financial institution, so benefits are expected to be competitive and comprehensive.

🎯 Team & Company Context

🏢 Company Culture

Industry: Financial Services (Banking & Investment)

Company Size: Large Enterprise (100,000+ employees globally)

Founded: 1836 (Barclays PLC)

Team Structure:

• Operations Focus: This role is part of the technology division, specifically within a team responsible for developing and maintaining front-end applications for the Foreign Exchange (FX) trading business.

• Reporting Structure: Likely reports to a Technology Lead or Engineering Manager, with potential oversight from an Assistant Vice President or Director, depending on the specific team hierarchy.

• Cross-functional Collaboration: Works closely with Product Managers, UX/UI Designers, other Front-End Developers, Back-End Engineers, QA Testers, and potentially business stakeholders within the FX trading division.

Methodology:

• Agile Development: Teams typically operate under Agile methodologies (Scrum or Kanban), emphasizing iterative development, continuous feedback, and rapid adaptation to changing requirements.

• Data-Driven Decisions: Emphasis on using data, analytics, and user feedback to inform development priorities, feature enhancements, and strategic decisions.

• Process Optimization: Continuous focus on improving development workflows, deployment pipelines, and overall engineering efficiency through automation and best practices.

Company Website: https://home.barclays/

📝 Enhancement Note: Barclays is a global financial institution with a long history. Its culture likely blends traditional banking values with a drive for technological innovation. The size of the organization means opportunities for career growth and exposure to diverse projects, but also requires navigating a structured corporate environment. The operations aspect is critical, as reliable and efficient trading platforms are the backbone of their FX business.

📈 Career & Growth Analysis

Operations Career Level: Senior Individual Contributor / Assistant Vice President

This role represents a senior individual contributor position, often equivalent to an Assistant Vice President within large financial institutions. It demands a high level of technical expertise, architectural foresight, and the ability to influence technical direction. The individual is expected to operate with significant autonomy, solve complex problems, and potentially mentor junior team members.

Reporting Structure: Typically reports to a Lead Engineer, Engineering Manager, or a Director-level executive within the technology division. May also have indirect reporting lines or strong collaborative relationships with Product Management and Business Unit leaders.

Operations Impact: The FX UI React Developer directly impacts the operational efficiency and revenue generation of the Foreign Exchange trading business. By building and optimizing user interfaces for traders, this role influences trading speed, accuracy, user experience, and ultimately, the firm's ability to execute trades effectively and competitively in the market. High-quality UI development is crucial for minimizing errors, reducing operational risk, and enhancing client satisfaction.

Growth Opportunities:

• Technical Specialization: Deepen expertise in React, TypeScript, GraphQL, and front-end architecture, becoming a subject matter expert within the organization.

• Architectural Leadership: Progress into roles focused on enterprise-level front-end architecture, setting technical standards, and guiding multiple teams.

• Team Leadership: Transition into a People Leader role, managing a team of developers, fostering their growth, and overseeing project delivery.

• Cross-functional Mobility: Move into related areas such as DevOps, technical program management, or product management within the financial technology space.

• Domain Expertise: Develop specialized knowledge in FX trading systems, market data, and financial regulations, becoming an invaluable asset to the business.

📝 Enhancement Note: The "Assistant Vice President Expectations" section is a strong indicator of the expected career trajectory and responsibility level. The growth opportunities suggest a path for individuals who excel technically and demonstrate leadership potential within the operations of the financial technology domain.

🌐 Work Environment

Office Type: Corporate Office Environment

The role is based in a modern, professional office setting designed to foster collaboration and productivity. This likely includes open-plan work areas, private meeting rooms, and dedicated spaces for focused work.

Office Location(s): Gemini Building B, Prague, Czechia. This is a prime business location, likely well-connected by public transport and offering modern amenities.

Workspace Context:

• Collaborative Hub: The office provides a central point for team meetings, brainstorming sessions, and spontaneous discussions, crucial for agile development and cross-functional alignment.

• Technology-Rich Environment: Expect access to high-performance workstations, multiple monitors, and reliable network infrastructure necessary for complex development tasks.

• Team Interaction: Regular opportunities for in-person interaction with colleagues, fostering stronger team cohesion, knowledge transfer, and a shared sense of purpose in building critical financial systems.

Work Schedule: The standard work schedule will be on-site during business hours, with potential for some flexibility to accommodate project deadlines or personal needs, subject to management approval. This on-site presence is important for the collaborative and secure nature of financial technology development.

📝 Enhancement Note: The on-site requirement for this role in Prague suggests that Barclays values in-person collaboration, knowledge sharing, and potentially the security protocols associated with working within their corporate infrastructure for sensitive financial applications.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: A recruiter or HR representative will likely conduct an initial screening to assess basic qualifications, experience, and cultural fit.

• Technical Interview(s): Expect one or more technical interviews focusing on React, TypeScript, JavaScript fundamentals, state management, testing strategies, and problem-solving. This may include live coding exercises or discussions about past projects.

• Architecture & Design Discussion: A session dedicated to discussing your approach to software architecture, leading refactorings, establishing patterns, and making technical decisions. Be prepared to present and defend your architectural choices.

• Portfolio Review: A dedicated segment where you will walk through selected projects from your portfolio, explaining the challenges, your solutions, the technologies used, and the outcomes.

• Behavioral & Leadership Interview: Questions assessing your alignment with Barclays' values (Respect, Integrity, Service, Excellence, Stewardship) and mindset (Empower, Challenge, Drive). For an AVP-level role, expect questions related to leadership, mentorship, risk management, and stakeholder influence.

• Final Interview: Potentially with a senior leader or hiring manager to confirm fit and discuss role expectations.

Portfolio Review Tips:

• Curate Selectively: Choose 2-3 of your most impactful projects that best showcase your React, TypeScript, and architectural skills, particularly those relevant to complex UI development or financial applications if possible.

• Focus on Impact: For each project, clearly articulate the business problem, your specific contributions, the technical challenges overcome, the solutions implemented, and the quantifiable results (e.g., performance improvements, user adoption, error reduction).

• Highlight Architecture & Process: Be ready to discuss the design patterns used, architectural decisions made, testing strategies employed, and any process improvements you introduced.

• Code Quality Showcase: If possible, provide access to well-documented, clean code repositories (e.g., on GitHub) that exemplify your coding standards and testing practices.

• Storytelling: Frame your project walkthroughs as compelling narratives, guiding the interviewer through your thought process and problem-solving journey.

Challenge Preparation:

• Algorithmic & Data Structure Problems: Brush up on common coding challenges, as these may be part of live coding assessments.

• React/TypeScript Scenarios: Prepare for scenarios involving component design, state management dilemmas, performance bottlenecks, and TypeScript type system challenges.

• Test Architecture Design: Be ready to discuss how you would architect a testing suite for a complex application, including unit, integration, and end-to-end tests.

• System Design Questions: For an AVP level, expect system design questions that may involve front-end architecture for large-scale applications, considering scalability, reliability, and security.

📝 Enhancement Note: The emphasis on portfolio and specific technical skills suggests a rigorous technical evaluation. For this senior role, demonstrating leadership potential and alignment with Barclays' core values will be as critical as technical prowess.

🛠 Tools & Technology Stack

Primary Tools:

• React: The core library for building user interfaces.

• TypeScript: For static typing and enhanced code maintainability.

• TanStack React Query: For efficient server state management, caching, and asynchronous data handling.

• Apollo Client (GraphQL): For interacting with GraphQL APIs, enabling flexible data fetching.

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

• React Testing Library: For testing React components in a user-centric way.

• Playwright: An end-to-end testing framework for automating browser interactions.

Analytics & Reporting:

• Internal Monitoring Tools: Barclays likely uses proprietary or industry-standard tools for application performance monitoring (APM) and user behavior analytics to track UI performance and user engagement.

• Logging Frameworks: Tools for structured logging to aid in debugging and performance analysis.

CRM & Automation:

• Version Control: Git, with platforms like GitHub, GitLab, or Bitbucket for code repositories and collaboration.

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

• Containerization: Docker for creating consistent development and deployment environments.

• Orchestration: Kubernetes for managing containerized applications at scale.

📝 Enhancement Note: The technology stack is modern and focused on performance, testability, and scalability, common in demanding financial technology environments. Proficiency in these tools is essential for success in this role.

👥 Team Culture & Values

Operations Values:

• Excellence & Quality: A strong commitment to delivering high-quality, robust, and performant software solutions that meet stringent financial industry standards. This translates to meticulous coding, thorough testing, and continuous improvement.

• Integrity & Stewardship: Upholding the highest ethical standards in handling sensitive financial data and ensuring the security and reliability of trading platforms. Acting as a responsible custodian of the company's technology assets and client trust.

• Collaboration & Service: Working effectively across teams and with stakeholders to deliver value to clients and colleagues. A service-oriented mindset is crucial for supporting critical business functions.

• Innovation & Challenge: Embracing new technologies and methodologies to drive innovation in financial technology, while also critically evaluating existing processes and challenging the status quo to achieve better outcomes.

Collaboration Style:

• Cross-functional Integration: Expect a highly collaborative environment where front-end development is tightly integrated with product management, design, and back-end engineering to ensure seamless delivery of features.

• Feedback-Driven: A culture that encourages open feedback during code reviews, design discussions, and Agile ceremonies, fostering continuous learning and improvement.

• Knowledge Sharing: Emphasis on sharing expertise through internal tech talks, documentation, and mentorship to build collective knowledge and elevate the team's capabilities.

📝 Enhancement Note: Barclays' stated values (Respect, Integrity, Service, Excellence, Stewardship) and Mindset (Empower, Challenge, Drive) are central to their culture. Operations professionals in this environment are expected to embody these principles in their daily work, particularly concerning reliability, security, and client service within the financial sector.

⚡ Challenges & Growth Opportunities

Challenges:

• Rapidly Evolving Technology: Staying current with the fast pace of front-end development and financial technology advancements requires continuous learning and adaptation.

• Complex Financial Systems: Understanding and contributing to the intricate architecture of FX trading platforms, which involve real-time data, high transaction volumes, and stringent regulatory requirements.

• Balancing Innovation with Stability: Implementing new features and technologies while ensuring the absolute stability and security of a critical trading system.

• Cross-Functional Alignment: Effectively communicating technical concepts and navigating priorities across diverse teams (e.g., business, compliance, IT operations).

Learning & Development Opportunities:

• Specialized Training: Access to internal and external training programs focused on advanced React, TypeScript, GraphQL, financial markets, and specific trading technologies.

• Industry Conferences: Opportunities to attend leading tech and finance conferences to gain insights into emerging trends and network with peers.

• Mentorship Programs: Participation in mentorship initiatives, either as a mentee to learn from senior leaders or as a mentor to guide junior developers.

• Leadership Development: Formal and informal opportunities to develop leadership skills, including project management, team management, and strategic planning.

📝 Enhancement Note: The challenges presented are typical for senior roles in the FinTech space, requiring a blend of technical acumen, strategic thinking, and adaptability. The growth opportunities are geared towards developing well-rounded professionals who can lead technically and contribute strategically.

💡 Interview Preparation

Strategy Questions:

• "Describe a complex architectural decision you led for a large-scale React application. What were the trade-offs, and what was the outcome?" (Focus: Architectural thinking, decision-making, impact assessment)

• "How would you approach designing a real-time data visualization component for an FX trading platform, considering performance, accuracy, and user experience?" (Focus: Technical problem-solving, domain understanding, UX sensibility)

Company & Culture Questions:

• "How do you align your work with Barclays' values of Respect, Integrity, Service, Excellence, and Stewardship?" (Focus: Cultural fit, ethical considerations)

• "Describe a time you had to challenge the status quo or influence stakeholders to adopt a new technical approach. How did you handle it?" (Focus: Mindset, influence, communication)

Portfolio Presentation Strategy:

• Structure Your Narrative: For each project, clearly define the problem, your role, the solution (technical details), the impact (metrics!), and lessons learned.

• Quantify Your Impact: Wherever possible, use numbers to demonstrate the value of your work (e.g., "reduced page load time by 30%", "increased conversion rate by 15%", "handled X transactions per second").

• Highlight Key Technologies: Explicitly mention your use of React, TypeScript, TanStack React Query, Apollo Client, Playwright, etc., and explain why you chose them.

• Be Prepared for Deep Dives: Anticipate detailed questions about your code, architectural choices, and testing methodologies.

• Engage and Discuss: Treat it as a collaborative discussion rather than a presentation; be open to feedback and questions.

📝 Enhancement Note: Interview preparation should focus on demonstrating not only technical expertise but also strategic thinking, problem-solving skills, and alignment with Barclays' corporate culture and values, especially for a senior role.

📌 Application Steps

To apply for this FX UI React Developer position:

• Submit Your Application: Navigate to the provided Workday careers portal link and complete the online application form.

• Tailor Your Resume: Emphasize your experience with React, TypeScript, advanced state management (TanStack React Query, Apollo Client), testing frameworks (Vitest, React Testing Library, Playwright), and any experience in financial services or FX platforms. Quantify achievements wherever possible.

• Prepare Your Portfolio: Select 2-3 key projects that best showcase your skills. Have clear explanations ready for your architectural decisions, technical challenges, and the impact of your work. Consider having code samples accessible (e.g., GitHub).

• Research Barclays: Familiarize yourself with Barclays' values, recent news, and their technological initiatives, especially within their investment banking or trading divisions.

• Practice Interview Questions: Rehearse answers to common technical, behavioral, and situational questions, focusing on the STAR method (Situation, Task, Action, Result) for behavioral questions. Prepare to articulate your thought process clearly.

⚠️ 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.