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: Technology / Software Engineering

Date Posted: 2026-05-13

Experience Level: 5-10 Years

Remote Status: On-site

🚀 Role Summary

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

• Drive innovation and excellence in digital offerings, ensuring unparalleled customer and colleague experiences through advanced React and TypeScript development.

• Collaborate closely with product managers, designers, and fellow engineers to define software requirements, devise solution strategies, and ensure seamless integration with business objectives.

• Lead architectural decisions, champion code quality through rigorous testing and code reviews, and contribute to the organization’s technology communities.

📝 Enhancement Note: While the job title is "FX UI React Developer," the description and responsibilities clearly indicate a role within a broader technology and software engineering function, specifically focused on front-end development for financial trading platforms. The "Assistant Vice President Expectations" section suggests a senior individual contributor role with significant influence, or potentially a team lead position depending on the specific team structure within Barclays.

📈 Primary Responsibilities

• Design, develop, and deliver high-quality, scalable, maintainable, and optimized software solutions for the FX trading platform utilizing React and strict TypeScript, including custom hooks, advanced component patterns, performance optimization, error boundaries, and context architecture.

• Manage server state effectively using TanStack React Query and Apollo Client (GraphQL), ensuring efficient data retrieval and manipulation for a dynamic trading environment.

• Collaborate cross-functionally with product managers, UX/UI designers, and other engineers to translate business requirements into robust technical solutions, ensuring seamless integration and alignment with global business objectives.

• Champion code quality, participate actively in code reviews, and promote knowledge sharing through presentations and documentation to foster a culture of technical excellence and continuous improvement within the engineering team.

• Implement and maintain robust testing practices, including unit testing with Vitest and React Testing Library, and component/end-to-end testing with Playwright, employing test architecture, fixture design, and API mocking strategies.

• Independently drive architectural decisions, lead large-scale code refactorings, and establish best-practice patterns across a shared codebase, ensuring consistency and maintainability.

• Adhere to secure coding practices and implement solutions that mitigate vulnerabilities, protect sensitive financial data, and ensure the overall security of the software.

• Contribute to the development and implementation of CI/CD pipelines, containerization strategies (Docker, Kubernetes), and other DevOps practices to streamline the software development lifecycle.

📝 Enhancement Note: The core responsibilities are heavily focused on front-end development for a specific domain (FX trading), emphasizing advanced React/TypeScript capabilities, state management, testing, and architectural leadership. The "Assistant Vice President Expectations" implies a senior level of responsibility, including influencing strategy, mentoring, and potentially leading complex projects or a small team.

🎓 Skills & Qualifications

Education: While no specific degree is mandated, a strong foundation in Computer Science, Software Engineering, or a related field is implied through the technical requirements. Candidates with equivalent practical experience will also be considered.

Experience: 5-10 years of professional experience in front-end software development, with a significant focus on building complex, high-performance user interfaces for financial applications or trading platforms.

Required Skills:

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

• Strict TypeScript Expertise: Mastery of TypeScript for building robust, maintainable, and type-safe applications.

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

• Testing Frameworks: Strong knowledge of Design Patterns, Testing practices (Vitest and React Testing Library), and Code Quality principles.

• End-to-End Testing: Experience with Playwright for component and E2E testing, including test architecture, fixture design, and API mocking strategies.

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

• Secure Coding Practices: Commitment to and demonstrated application of secure coding principles.

Preferred Skills:

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

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

• DevOps & Containerization: Knowledge of DevOps tools (CI/CD pipelines, containerisation with Docker and Kubernetes).

• UX/UI & 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.

📝 Enhancement Note: The required skills emphasize deep technical expertise in modern front-end technologies and a proactive approach to architectural leadership and quality assurance. The preferred skills highlight experience with specific tools and methodologies that further enhance development efficiency and application sophistication, particularly in a large enterprise environment like Barclays.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Demonstrated React/TypeScript Projects: Showcase complex, production-ready React applications built with strict TypeScript, highlighting advanced component architecture and state management.

• State Management Solutions: Evidence of implementing and managing server state effectively using libraries like TanStack React Query or Apollo Client (GraphQL).

• Testing Framework Integration: Examples of comprehensive testing strategies, including unit tests (Vitest/React Testing Library) and end-to-end tests (Playwright), demonstrating proficiency in test architecture and API mocking.

• Architectural Contributions: Documentation or case studies detailing instances where you drove architectural decisions, led refactorings, or established coding patterns for shared codebases.

• Performance Optimization: Showcase projects where significant performance improvements were achieved through code optimization, efficient data handling, or architectural changes.

Process Documentation:

• Workflow Design & Optimization: Documented processes for designing and optimizing front-end development workflows, from initial requirement gathering to deployment.

• Test Automation Implementation: Detailed approaches for implementing and maintaining automated testing suites (unit, component, E2E) within a CI/CD pipeline.

• Code Review & Quality Standards: Protocols and examples of how code quality is maintained through rigorous code review processes and adherence to established coding standards.

• Micro-frontend/Monorepo Strategies: If applicable, provide documentation on strategies for managing micro-frontend architectures or pnpm monorepos, including integration patterns and dependency management.

📝 Enhancement Note: For a senior role like this, a portfolio is crucial. It should not just list projects but articulate the impact and process behind them, particularly demonstrating leadership in architectural decisions and a commitment to quality and efficiency through robust testing and modern development practices.

💵 Compensation & Benefits

Salary Range: Based on industry benchmarks for Senior React Developers (5-10 years experience) in Prague, Czechia, with an Assistant Vice President level of responsibility within a major financial institution like Barclays, the estimated annual salary range is CZK 1,500,000 - CZK 2,200,000.

Benefits:

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

• Retirement Savings Plan: Contributions to a pension scheme or similar long-term savings vehicle.

• Performance-Based Bonuses: Annual bonus opportunities tied to individual and company performance.

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

• Professional Development Budget: Funds allocated for training, certifications, conferences, and continuous learning.

• Employee Assistance Program (EAP): Support services for personal and professional well-being.

• Modern Office Facilities: Access to well-equipped workspaces in the Prague office, including amenities.

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

Working Hours: Standard full-time hours are approximately 40 hours per week. While the role is on-site, Barclays often provides a degree of flexibility in working hours, allowing for some adjustment to accommodate personal needs, provided core business hours and collaboration requirements are met.

📝 Enhancement Note: The salary estimate is based on research of senior software engineering roles in Prague, considering the financial industry, the specific technical stack (React, TypeScript, GraphQL), and the implied seniority (Assistant Vice President). Cost of living in Prague is moderate compared to major Western European capitals, but a senior role at an international bank commands a competitive salary. Benefits are typical for large financial institutions and are crucial for attracting and retaining top talent in specialized tech roles.

🎯 Team & Company Context

🏢 Company Culture

Industry: Financial Services (Banking and Investment)

Company Size: Large Enterprise (over 10,000 employees globally)

Founded: 1824 (Barclays has a long and rich history, evolving from its origins in banking and merchant services to become a global financial powerhouse.)

Team Structure:

• Operations Focus: This role sits within the technology division, specifically focusing on the Front-End Development team responsible for the FX trading platform. This team likely consists of React Developers, UI/UX Designers, and potentially QA Engineers, all working collaboratively.

• Reporting Structure: As an Assistant Vice President, this role likely reports to a Senior Vice President or Director of Engineering, with potential to lead a small team of junior developers or directly contribute as a senior individual contributor.

• Cross-functional Collaboration: The role necessitates close collaboration with Product Management, Business Analysts, other Engineering teams (back-end, DevOps), and potentially trading desk representatives to gather requirements, design solutions, and ensure seamless integration of the FX UI.

Methodology:

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

• Data-Driven Decision Making: Expect a strong emphasis on data analysis for understanding user behavior, optimizing performance, and informing architectural decisions.

• Process Optimization: A continuous drive to improve development processes, testing strategies, and deployment efficiency through automation and best practices.

Company Website: https://home.barclays/

📝 Enhancement Note: Barclays is a globally recognized financial institution with a significant technology footprint. The culture likely balances traditional banking values (integrity, stewardship) with a modern approach to technology and innovation, particularly in areas like digital transformation and trading platforms. The size of the organization means robust processes, clear reporting lines, and a focus on risk management are paramount.

📈 Career & Growth Analysis

Operations Career Level: Assistant Vice President (AVP) - This is a senior individual contributor role or a junior leadership position within the technology hierarchy. It signifies a high level of technical expertise, problem-solving capability, and the ability to influence technical strategy and execution. The role demands not only deep technical skills but also the capacity to mentor, guide, and collaborate effectively across teams.

Reporting Structure: The AVP will likely report to a Vice President (VP) or Senior Vice President (SVP) within the engineering department, overseeing front-end development for the FX trading platform. They may also have direct reports if the role has leadership responsibilities, or they will act as a technical lead for specific projects and initiatives.

Operations Impact: This role directly impacts the revenue-generating capabilities of Barclays by enhancing the FX trading platform. A well-designed, performant, and user-friendly UI is critical for traders to execute transactions efficiently, manage risk, and gain a competitive edge. The AVP's contributions will influence user adoption, operational efficiency, and ultimately, the firm's profitability in the FX market.

Growth Opportunities:

• Technical Specialization: Deepen expertise in FX trading systems, advanced UI/UX for financial markets, or emerging front-end technologies.

• Leadership Path: Transition into a management role (e.g., VP of Engineering, Head of Front-End Development) with increased team leadership and strategic responsibility.

• Architectural Design: Grow into a Principal Engineer or Chief Architect role, defining technical strategy and setting standards across multiple product lines.

• Cross-Functional Mobility: Opportunities to move into related areas such as product management, DevOps leadership, or program management within the technology division.

• Global Mobility: Potential to explore opportunities within Barclays' global technology hubs.

📝 Enhancement Note: The AVP title at Barclays indicates a significant level of responsibility and potential for growth. The career path is clearly defined towards either deeper technical specialization or broader leadership, with ample opportunities for skill development and impact within a large, established financial institution.

🌐 Work Environment

Office Type: On-site role within a modern corporate office building (Gemini Building B, Prague). This implies a professional, structured work environment.

Office Location(s): Prague, Czechia. This location offers a vibrant European hub with a growing tech scene.

Workspace Context:

• Collaborative Environment: The office is designed to foster collaboration, with open-plan areas, meeting rooms, and dedicated team spaces. Expect regular team stand-ups, sprint reviews, and cross-functional meetings.

• Technology & Tools: Access to high-performance workstations, dual monitors, and all necessary software and development tools required for advanced front-end development. Barclays likely provides robust IT support and infrastructure.

• Team Interaction: Opportunities for frequent interaction with peers, product managers, designers, and other engineering teams, facilitating knowledge sharing and problem-solving. The environment encourages a proactive approach to seeking and providing assistance.

Work Schedule: Standard full-time work schedule, likely aligned with European business hours to facilitate collaboration with international teams. While the role is on-site, there may be some flexibility, but core hours for team collaboration and stakeholder engagement are expected.

📝 Enhancement Note: The on-site requirement in Prague suggests a desire for strong team cohesion and immediate collaboration, which is crucial for complex financial systems development. The environment is expected to be professional, well-resourced, and conducive to focused, high-impact work.

📄 Application & Portfolio Review Process

Interview Process:

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

• Technical Assessment (Online/Coding Challenge): A practical coding exercise, likely focusing on React, TypeScript, and possibly algorithmic problem-solving, to evaluate core technical skills.

• Hiring Manager Interview: In-depth discussion about your experience, technical approach, leadership potential, and how you align with the team's needs. Preparation for discussing your portfolio is key here.

• Technical Panel Interview: A session with senior engineers or architects to delve deeper into your technical expertise, architectural thinking, problem-solving methodologies, and experience with specific technologies (e.g., GraphQL, testing frameworks, micro-frontends).

• Portfolio Presentation: You will likely be asked to present one or more significant projects from your portfolio, detailing the problem, your solution, the technologies used, your specific contributions, and the outcomes/impact.

• Cultural Fit/AVP Expectations Interview: Discussion focusing on Barclays' values, leadership behaviors (LEAD), and how you handle complex situations, risk management, and stakeholder influence.

Portfolio Review Tips:

• Curate Selectively: Choose 2-3 of your most impactful projects that best showcase your expertise in React, TypeScript, state management, testing, and architectural leadership.

• Focus on Process & Impact: For each project, clearly articulate the business problem, the technical challenges, your specific role and contributions, the design decisions made (and why), the technologies employed, and the measurable outcomes or impact achieved.

• Demonstrate Technical Depth: Be prepared to deep-dive into specific code snippets, architectural patterns, testing strategies, and performance optimizations. Explain the trade-offs you considered.

• Highlight Collaboration: Showcase how you collaborated with designers, product managers, and other engineers.

• Address Security & Accessibility: If relevant, discuss how security and accessibility were incorporated into your designs and implementations.

Challenge Preparation:

• Coding Challenges: Practice problems on platforms like LeetCode (focusing on medium difficulty, data structures, and algorithms) and HackerRank. Familiarize yourself with common TypeScript and React patterns.

• System Design/Architecture: Prepare to discuss how you would design a scalable and performant UI for a complex application like an FX trading platform. Think about state management, component design, data fetching, security, and testing at scale.

• Behavioral Questions: Prepare STAR method (Situation, Task, Action, Result) answers for questions related to leadership, problem-solving, handling conflict, managing risk, and working in a team.

📝 Enhancement Note: The interview process is robust, reflecting the senior nature of the role and the critical function it serves within Barclays. A well-prepared portfolio presentation is essential for demonstrating practical application of skills and impact.

🛠 Tools & Technology Stack

Primary Tools:

• Frontend Framework: React (with strict TypeScript)

• State Management: TanStack React Query, Apollo Client (GraphQL)

• Testing Frameworks: Vitest, React Testing Library, Playwright

• Build Tools: Vite

• Package Management: pnpm

• Component Libraries: AG Grid (for data grids), React Hook Form (for forms)

• Schema Validation: Zod

Analytics & Reporting:

• Performance Monitoring Tools: Likely integrated within the CI/CD pipeline or specialized APM tools to track UI performance, load times, and error rates.

• User Behavior Analytics: Tools to track user interactions, feature usage, and identify areas for UI/UX improvement.

CRM & Automation:

• Version Control: Git (with platforms like GitHub, GitLab, or Bitbucket)

• CI/CD: Jenkins, GitLab CI, Azure DevOps, or similar for automated builds, testing, and deployments.

• Containerization: Docker, Kubernetes for deployment and orchestration.

• Code Generation Tools: Potentially used for scaffolding components or generating types from schemas.

📝 Enhancement Note: This stack is very modern and sophisticated, indicating Barclays is investing in cutting-edge front-end technologies for its critical trading platforms. Proficiency across these tools is essential for success in this role.

👥 Team Culture & Values

Operations Values:

• Respect: Valuing diverse perspectives and fostering an inclusive environment where all team members feel heard and appreciated.

• Integrity: Upholding the highest ethical standards in all actions, from code development to client interactions, ensuring trust and transparency.

• Service: Committing to delivering exceptional service to both internal stakeholders (traders, business units) and external customers, prioritizing their needs and satisfaction.

• Excellence: Striving for the highest quality in all work, from code craftsmanship to problem-solving, continuously seeking to improve and innovate.

• Stewardship: Acting as responsible guardians of company assets, data, and reputation, making decisions that ensure long-term sustainability and success.

Collaboration Style:

• Cross-functional Integration: A strong emphasis on working collaboratively with product, design, back-end, and QA teams. Open communication channels are maintained to ensure alignment and address dependencies promptly.

• Process Review Culture: Regular opportunities for teams to review and refine their development processes, testing methodologies, and deployment strategies, encouraging feedback and continuous improvement.

• Knowledge Sharing: Active promotion of knowledge sharing through internal tech talks, documentation, pair programming, and mentorship, fostering a learning-oriented environment.

📝 Enhancement Note: Barclays' core values are deeply ingrained in its culture. For this technology role, these values translate into a commitment to building reliable, secure, and high-quality software through collaborative, ethical, and client-focused practices.

⚡ Challenges & Growth Opportunities

Challenges:

• Complexity of Financial Markets: Developing for FX trading requires understanding intricate market dynamics, real-time data streams, and high-stakes transactional requirements.

• Legacy System Integration: Potentially integrating modern front-end solutions with existing, complex back-end systems within a large financial institution.

• Performance & Scalability Demands: Ensuring the UI remains performant and responsive under heavy load and with massive data volumes is a constant challenge.

• Evolving Technology Landscape: Keeping pace with rapid advancements in front-end technologies, frameworks, and best practices while maintaining stability and security.

Learning & Development Opportunities:

• Specialized Training: Access to advanced training in financial markets, trading systems, and specific technologies like GraphQL, advanced React patterns, and state management.

• Industry Conferences & Certifications: Support for attending relevant tech conferences (e.g., ReactConf, GraphQL Summit) and obtaining professional certifications.

• Mentorship Programs: Opportunities to be mentored by senior architects and leaders within Barclays, as well as to mentor junior developers, fostering leadership skills.

• Innovation Labs/Hackathons: Participation in internal innovation initiatives, hackathons, and proof-of-concept projects to explore new technologies and solutions.

📝 Enhancement Note: The challenges are inherent to working in a high-stakes financial technology environment. However, Barclays' commitment to learning and development provides ample avenues for technical and professional growth, enabling individuals to overcome these challenges and advance their careers.

💡 Interview Preparation

Strategy Questions:

• "Describe a complex UI architecture you designed or significantly contributed to. What were the key challenges, and how did you address them using React, TypeScript, and state management patterns?" (Focus on architectural decisions, trade-offs, and impact).

• "How would you approach building a real-time data visualization component for FX rates? Discuss your strategy for data fetching, state management, and ensuring performance." (Prepare to discuss data streaming, efficient updates, and rendering optimization).

Company & Culture Questions:

• "What do you know about Barclays' commitment to digital transformation and innovation in financial technology?" (Research recent Barclays tech news, initiatives, and their digital strategy).

• "How would you contribute to a culture of code quality and continuous improvement within our engineering team?" (Discuss your approach to code reviews, best practices, and knowledge sharing).

Portfolio Presentation Strategy:

• Structure Your Narrative: For each project, clearly define: The Problem, Your Solution, Your Role/Contributions, Key Technologies & Architecture, Challenges & How You Overcame Them, and The Outcome/Impact.

• Quantify Impact: Use metrics whenever possible (e.g., performance improvements in %, reduction in errors, increase in user engagement, time saved).

• Showcase Code Snippets: Be ready to present and discuss specific, well-written code examples that highlight your mastery of React, TypeScript, and design patterns.

• Discuss Trade-offs: Explain why you chose certain technologies or approaches, and what alternatives you considered. This demonstrates critical thinking.

• Engage Your Audience: Make it a conversation. Ask clarifying questions and be prepared to answer in-depth technical questions about your work.

📝 Enhancement Note: Preparation should focus on demonstrating not only technical prowess but also strategic thinking, problem-solving skills, and alignment with Barclays' values and operational rigor, especially in the context of financial services.

📌 Application Steps

To apply for this FX UI React Developer position at Barclays:

• Submit your application through the official Barclays Careers portal via the provided URL.

• Curate Your Resume: Tailor your resume to highlight your experience with React, strict TypeScript, GraphQL, state management (TanStack React Query, Apollo Client), and testing frameworks (Vitest, React Testing Library, Playwright). Emphasize quantifiable achievements and any experience in financial services or complex trading platforms.

• Prepare Your Portfolio: Select 2-3 key projects that best showcase your advanced front-end development skills, architectural contributions, and problem-solving abilities. Ensure you can clearly articulate the project’s context, your specific role, the technical challenges, and the measurable impact.

• Practice Interview Questions: Review potential technical, behavioral, and situational interview questions. Practice articulating your thought process clearly and concisely, using the STAR method for behavioral questions and preparing specific examples for technical challenges.

• Research Barclays: Familiarize yourself with Barclays' mission, values, recent technology initiatives, and their position in the financial services industry. Understand their commitment to innovation and client service.

⚠️ 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.