CDSClear Senior React Web UX/UI Developer

📍 Job Overview

Job Title: CDSClear Senior React Web UX/UI Developer
Company: LSEG
Location: Bucharest - Iuliu Maniu Boulevard, Romania
Job Type: Full-Time
Category: Software Engineering / Web Development (with a focus on FinTech Operations)
Date Posted: October 15, 2025
Experience Level: Senior (estimated 5-10 years)
Remote Status: Hybrid

🚀 Role Summary

• This Senior React Web UX/UI Developer role is integral to the build-out of a new engineering team within CDSClear IT, a critical clearing service at LSEG, focusing on developing innovative solutions for a new, external-facing digital platform.
• The position requires a strong command of frontend development technologies, including React and UI/UX design principles, to build out Trade Management functionality within CDSClear’s new digital portal using a micro-front end architecture.
• Developers will be instrumental in the end-to-end software delivery lifecycle, employing Agile methodologies and championing automation to ensure speed, quality, and efficiency in application development and deployment.
• A key aspect of this role involves working within a regulated financial environment, necessitating a solid focus on cybersecurity best practices and robust production controls to maintain the integrity and security of financial market infrastructure.

📝 Enhancement Note: While the job title is "React Web UX/UI Developer," the context of "CDSClear IT," "financial markets infrastructure," and "regulated financial environment" strongly suggests this role is deeply embedded within FinTech operations, requiring an understanding of operational workflows, data integrity, and regulatory compliance alongside technical development skills. The emphasis on "end-to-end software delivery lifecycle" and "automation" further points to a need for operations-minded development.

📈 Primary Responsibilities

• Lead the design, development, and testing of web application components for the CDSClear Clearing Service, utilizing React, TypeScript, HTML5, and CSS3.
• Develop and implement Trade Management functionality within CDSClear’s new digital portal, adhering to a micro-front end architecture.
• Collaborate with global teams in London and Paris to gather requirements, refine application designs, and deliver high-quality, well-tested software solutions.
• Champion and implement automation strategies across the software delivery lifecycle, including automated testing (e.g., Cypress), continuous integration, and deployment pipelines.
• Ensure all developed applications adhere to stringent cybersecurity standards and production control requirements within the regulated financial services environment.
• Translate business requirements into intuitive and highly usable application designs, leveraging UX/UI expertise and wireframing/prototyping tools like Figma.
• Integrate web applications with secure RESTful APIs, ensuring seamless data exchange and functionality.
• Maintain and improve cross-browser and cross-device compatibility, considering accessibility standards and regional differences.

📝 Enhancement Note: The responsibilities emphasize a full-stack approach for frontend development, including design, development, testing, and deployment automation, which is typical for senior roles in fast-paced FinTech environments. The mention of "micro-front end architecture" and "Trade Management functionality" indicates a need for understanding complex business logic and modular development practices crucial for scalable financial platforms.

🎓 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 often preferred for senior roles in financial services. Equivalent practical experience will also be strongly considered.

Experience:

• A minimum of 5-10 years of professional experience in frontend web development, with a significant focus on React and UI/UX design.
• Proven experience in managing and contributing to the end-to-end software delivery lifecycle, ideally within Agile frameworks.
• Experience working in regulated environments, particularly in financial services, is highly advantageous.

Required Skills:

• Expert-level Frontend Technology: Deep expertise in React.js, TypeScript, HTML5, and CSS3.
• Automated Testing: Practical experience with testing frameworks such as Cypress for automated testing of web applications.
• UX/UI Design: Strong ability to understand business requirements, translate them into user-friendly application designs, and collaborate effectively on design outcomes.
• Prototyping & Wireframing: Proficiency with tools like Figma for creating wireframes and interactive prototypes.
• API Integration: Experience integrating with secure RESTful APIs.
• Cross-Browser/Device Compatibility: Understanding and implementation of responsive design, accessibility standards, and cross-browser/cross-device considerations.
• Agile Methodologies: Familiarity and practical application of Agile principles in a development setting.
• Automation Mindset: A strong drive to automate processes, from testing to deployment.

Preferred Skills:

• Backend Understanding: Appreciation of Java-based backend services, including Spring Boot and microservices architecture.
• Cloud Platforms: Familiarity with AWS and Infrastructure-as-Code concepts.
• Cybersecurity Awareness: Understanding of common cybersecurity threats and best practices in web development.

📝 Enhancement Note: The "expert level" designation for React and UI/UX, combined with the mention of "senior," implies a need for not just coding ability but also architectural thinking, mentorship potential, and the ability to drive best practices within the team. The preference for Java backend knowledge suggests a semi-full-stack expectation or at least a need for strong API interaction understanding.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• End-to-End Project Showcase: Demonstrate at least one significant project where you were involved from conception through to deployment, highlighting your role in design, development, testing, and release.
• React Component Design: Showcase reusable, well-documented React components and explain the design choices and patterns used (e.g., hooks, context API, state management libraries).
• UI/UX Design Examples: Provide examples of wireframes, mockups, and prototypes created using tools like Figma, illustrating your process for translating user needs into functional designs.
• Automated Testing Implementation: Include examples or detailed descriptions of how you've implemented automated testing strategies (e.g., unit, integration, end-to-end tests) for web applications, ideally using frameworks like Cypress.
• API Integration Scenarios: Detail projects where you integrated frontend applications with backend RESTful APIs, explaining data flow, error handling, and security considerations.

Process Documentation:

• Workflow Design & Optimization: Be prepared to discuss how you approach designing and optimizing user workflows within web applications to enhance usability and efficiency.
• Agile Development Practices: Describe your experience with Agile ceremonies (sprint planning, stand-ups, retrospectives) and how you contribute to a collaborative development process.
• Testing Strategy Articulation: Clearly articulate your approach to testing web applications, emphasizing the role of automation in ensuring quality and speed.

📝 Enhancement Note: For a senior role in a FinTech environment, a portfolio should not just list projects but demonstrate a deep understanding of the development lifecycle, testing methodologies, and user-centric design principles. The ability to articulate processes and demonstrate impact through metrics is crucial.

💵 Compensation & Benefits

Salary Range:

• Based on industry benchmarks for Senior React Developers in Bucharest, Romania, with 5-10 years of experience in a hybrid work environment within the FinTech sector, the estimated salary range is €35,000 - €55,000 annually (gross). This estimate considers the cost of living in Bucharest and the specialized nature of financial services technology.

Benefits:

• 25 days’ holiday per year
• 1 additional day off for your Birthday
• Annual wellness allowance
• Share Purchase Plan
• Medical Health Insurance
• Medical Subscription (preventive medical services)
• Life insurance
• Pillar 3 Private Pension
• Meal Vouchers
• Flexible Benefits
• Bookster (book subscription service)
• Volunteering Events
• Parental Leave: At least 26 weeks’ paid leave for new parents (with at least one year’s continuous service), with the option for phased return to work.

Working Hours:

• The role is likely based on a standard 40-hour work week. While the position is hybrid, specific office attendance requirements will be communicated by the team, but typically involve a portion of the week in the Bucharest office to foster collaboration.

📝 Enhancement Note: The salary range is an estimation based on typical compensation for senior technical roles in Bucharest and the specialized financial services industry. Actual compensation will be determined by LSEG based on the candidate's experience, skills, and the specific demands of the role. The benefits package is comprehensive and reflects LSEG's commitment to employee well-being and professional development.

🎯 Team & Company Context

🏢 Company Culture

Industry: Financial Markets Infrastructure and Data. LSEG operates at the intersection of finance, technology, and data, providing critical services like clearing, trading, and market data. This industry demands high levels of reliability, security, and regulatory compliance. Company Size: LSEG is a large, global organization employing 25,000 people across 70 countries, with significant operations in EMEA, North America, Latin America, and Asia Pacific. The Bucharest team is part of a new engineering initiative, suggesting a blend of established corporate structure with the agility of a growing team. Founded: LSEG has a rich history spanning over 300 years, indicating stability, deep industry expertise, and a long-term perspective. The company's mission is "driving financial stability, empowering economies and enabling customers to create sustainable growth."

Team Structure:

• The CDSClear IT team in Bucharest is a newly formed engineering unit, collaborating closely with existing teams in London and Paris. This suggests a dynamic, growth-oriented environment where new team members can significantly influence processes and direction.
• The team will likely operate with a mix of immediate technical leads and project managers, with reporting lines potentially extending to global engineering leadership.
• Cross-functional collaboration will be key, involving product owners, business analysts, QA engineers, and backend developers, all working towards delivering external-facing digital platform features.

Methodology:

• The team will leverage Agile methodologies for iterative development and rapid delivery.
• A strong emphasis will be placed on automation, particularly in testing and deployment, to ensure efficiency and quality.
• Data-driven decision-making will be paramount, with a focus on performance metrics, user feedback, and business impact.
• Adherence to rigorous cybersecurity protocols and production controls is a non-negotiable aspect of operations within LSEG's regulated environment.

Company Website: https://www.lseg.com/

📝 Enhancement Note: LSEG's long history and global presence provide a stable yet innovative backdrop. The new engineering team in Bucharest offers an exciting opportunity to shape processes and contribute to critical financial infrastructure, blending startup-like agility with corporate resources and stability.

📈 Career & Growth Analysis

Operations Career Level: This is a Senior Developer role, implying a level of technical leadership, mentorship, and the ability to independently drive complex features. It sits within the broader software engineering domain but has strong ties to the operational delivery of financial services. Reporting Structure: You will report to a technical lead or engineering manager within the CDSClear IT team in Bucharest. Collaboration will be extensive with global counterparts in London and Paris, offering exposure to diverse working styles and technical challenges. Operations Impact: As a developer on the CDSClear platform, your work directly impacts the efficiency, security, and reliability of financial clearing services. This role contributes to LSEG's mission of driving financial stability and empowering economies by building robust, user-friendly digital tools for clients.

Growth Opportunities:

• Technical Specialization: Deepen expertise in React, micro-front-end architectures, and modern JavaScript frameworks. Opportunity to become a subject matter expert in specific functional areas of Trade Management.
• Cross-Functional Skill Development: Gain exposure to Java backend development, AWS cloud infrastructure, and Infrastructure-as-Code principles, broadening your technical skillset.
• Leadership & Mentorship: As a senior member, you'll have opportunities to mentor junior developers, lead technical discussions, and influence architectural decisions.
• FinTech Domain Expertise: Develop a strong understanding of financial markets, clearing services, and regulatory requirements, a valuable specialization within the tech industry.
• Global Collaboration: Enhance communication and collaboration skills by working with international teams, potentially leading to future international opportunities.

📝 Enhancement Note: The "Senior" title combined with the "build out of a new engineering team" suggests a significant opportunity for influence and growth. This role offers a clear path to becoming a technical leader within a critical FinTech domain, moving beyond pure development to process improvement and strategic contribution.

🌐 Work Environment

Office Type: LSEG offers a hybrid work model. This implies a modern office environment designed to support collaboration, innovation, and focused work, alongside the flexibility of remote work. Office Location(s): The primary office location for this role is Bucharest, Romania, specifically at Iuliu Maniu Boulevard. LSEG has a global presence, but this role is based in the Bucharest hub. Workspace Context:

• The office environment is expected to be collaborative, encouraging interaction between team members for problem-solving and knowledge sharing.
• You will have access to modern development tools and technologies, including high-performance workstations and the necessary software licenses.
• Opportunities for direct interaction with global colleagues (London, Paris) will be facilitated through video conferencing and collaborative platforms, fostering a connected global team experience. Work Schedule: A standard 40-hour work week is typical. While the hybrid model offers flexibility, the specific days in the office will be agreed upon with the team manager to optimize collaboration and team cohesion, especially during the initial build-out phase of the new team.

📝 Enhancement Note: The hybrid model is standard for senior tech roles, balancing focused development time with collaborative team engagement. The emphasis on global collaboration suggests a well-supported remote work infrastructure.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: A recruiter or HR representative will conduct a preliminary call to assess basic qualifications, cultural fit, and interest in the role and LSEG.
• Technical Assessment (Online): Expect an online coding challenge or technical questionnaire focusing on React, JavaScript, and potentially algorithmic problem-solving. This might be timed and cover core concepts.
• Hiring Manager Interview: A discussion with the hiring manager focusing on your experience, approach to development, problem-solving skills, and understanding of the role's responsibilities.
• Technical Deep Dive / Panel Interview: You will likely meet with senior developers or architects from the team. This stage will involve in-depth technical questions, code reviews, and discussions about your portfolio projects. Be prepared to explain architectural decisions, trade-offs, and your reasoning.
• Portfolio Presentation: You may be asked to present one or two key projects from your portfolio, explaining the problem, your solution, your technical approach, and the outcome/impact.
• Final Interview / HR: A final conversation, potentially with a senior leader, to confirm your fit with LSEG's values and culture, discuss compensation, and outline the next steps.

Portfolio Review Tips:

• Curate Strategically: Select projects that best showcase your expertise in React, UI/UX design, API integration, and automated testing. Prioritize projects with clear business impact or complex technical challenges.
• Focus on Impact & Process: For each project, clearly articulate the business problem, your specific contributions, the technologies used, the challenges faced, and the quantifiable results achieved (e.g., performance improvements, user satisfaction increases, efficiency gains).
• Highlight Automation: Explicitly demonstrate your experience with automated testing (e.g., Cypress) and any other automation efforts in your development workflow.
• Showcase Design Skills: Include examples of wireframes, mockups, or prototypes from Figma, explaining your design process and how you considered user experience.
• Be Prepared to Discuss Trade-offs: For architectural decisions or technology choices, be ready to discuss why you made certain choices and what alternatives were considered.

Challenge Preparation:

• React Fundamentals: Brush up on core React concepts (hooks, state management, context API, component lifecycle, performance optimization).
• JavaScript Proficiency: Ensure a strong understanding of modern JavaScript (ES6+), including asynchronous programming and data structures.
• Testing Frameworks: Familiarize yourself with Cypress or similar end-to-end testing tools. Understand how to write effective test cases.
• API Design & Interaction: Review concepts of RESTful APIs, HTTP methods, request/response handling, and common security patterns.
• Problem-Solving: Practice breaking down complex problems into smaller, manageable parts and articulating your thought process clearly.

📝 Enhancement Note: The interview process is structured to assess technical proficiency, problem-solving abilities, and cultural fit. A well-prepared portfolio that directly addresses the job requirements, especially regarding React, UI/UX, and automation, will be a significant advantage.

🛠 Tools & Technology Stack

Primary Tools:

• Frontend Framework: React.js (expert level)
• Language: TypeScript, JavaScript (ES6+)
• Styling: CSS3, potentially CSS-in-JS libraries (e.g., Styled Components) or preprocessors (Sass/Less)
• Build Tools: Webpack, Babel (likely managed by Create React App or similar)
• Version Control: Git

Testing & Automation:

• End-to-End Testing: Cypress (practical experience required)
• Unit/Integration Testing: Jest, React Testing Library (highly probable)
• CI/CD: Familiarity with continuous integration and continuous deployment concepts and tools (e.g., Jenkins, GitLab CI, GitHub Actions).

Design & Collaboration:

• Prototyping/Wireframing: Figma (required)
• Design Systems: Experience working with or contributing to design systems is a plus.

Backend & Infrastructure (Appreciation Required):

• Backend Language: Java (understanding appreciated)
• Frameworks: Spring Boot (understanding appreciated)
• Architecture: Microservices architecture (understanding appreciated)
• Cloud Platform: AWS (familiarity is a plus)
• Infrastructure-as-Code (IaC): Familiarity is a plus.

API Interaction:

• RESTful APIs: Experience integrating with secure RESTful APIs is a requirement.

📝 Enhancement Note: The core requirement is expertise in React and associated frontend technologies. While backend and cloud knowledge are preferred, the emphasis is on strong frontend development and integration capabilities. Proficiency with Cypress for automated testing is a key differentiator.

👥 Team Culture & Values

Operations Values:

• Integrity: Upholding the highest ethical standards and ensuring the trustworthiness of financial systems. This translates to writing secure, reliable code and being transparent in all dealings.
• Partnership: Collaborating effectively with global teams, stakeholders, and colleagues to achieve shared goals. This means being a team player, communicating openly, and supporting others.
• Excellence: Striving for the highest quality in all aspects of work, from code craftsmanship to problem-solving and user experience. This involves a commitment to continuous learning and improvement.
• Change: Embracing innovation and adapting to evolving market needs and technological advancements. This role is part of building new systems, so a proactive approach to change is essential.

Collaboration Style:

• Global & Cross-Functional: Expect to work closely with teams across different time zones and disciplines (development, product, QA, operations). Effective communication via tools like Slack, Teams, and video conferencing is vital.
• Agile & Iterative: The team will likely operate with a high degree of collaboration within sprints, involving regular feedback loops and adaptive planning.
• Knowledge Sharing: A culture of sharing best practices, code reviews, and lessons learned will be encouraged to foster collective growth and maintain high standards.

📝 Enhancement Note: LSEG's stated values (Integrity, Partnership, Excellence, Change) are directly applicable to an operations-minded developer. These values emphasize reliability, teamwork, high standards, and adaptability – all critical in the financial services sector.

⚡ Challenges & Growth Opportunities

Challenges:

• Complex Financial Domain: Understanding the intricacies of financial markets, clearing processes, and regulatory requirements can be challenging but rewarding.
• Global Team Collaboration: Navigating different time zones, communication styles, and cultural nuances when working with dispersed teams requires adaptability and strong interpersonal skills.
• Legacy vs. Modern: Integrating new digital platforms with existing financial infrastructure might involve technical complexities and careful planning.
• High-Security Environment: Adhering to stringent cybersecurity and compliance standards in a regulated industry requires constant vigilance and a meticulous approach to development.

Learning & Development Opportunities:

• Advanced React & Frontend Techniques: Opportunities to explore advanced patterns, performance optimization, and new features within the React ecosystem.
• FinTech Specialization: Deep dive into the financial services industry, gaining expertise in clearing, trading, risk management, and regulatory technology.
• Cloud & Backend Exposure: Gain practical experience or a deeper understanding of Java, Spring Boot, AWS, and Infrastructure-as-Code, enhancing your full-stack potential.
• Leadership Development: Potential to grow into a technical lead, architect, or team management role within LSEG.
• Industry Certifications: Possibility of pursuing relevant certifications in cloud technologies, cybersecurity, or project management, supported by LSEG.

📝 Enhancement Note: The challenges presented are typical for senior roles in established FinTech companies, offering significant opportunities for professional development and specialization.

💡 Interview Preparation

Strategy Questions:

• Operations Strategy: "Describe a time you had to balance delivering new features with maintaining the stability and security of an existing application. How did you approach this, and what were the key considerations?" (Focus on your understanding of operational impact and risk management).
• Collaboration & Stakeholder Management: "How do you approach gathering requirements from non-technical stakeholders, especially in a regulated environment? Can you provide an example of a time you had to translate complex business needs into technical specifications?" (Highlight your communication and analytical skills).
• Problem-Solving & Efficiency: "Walk me through a complex technical problem you encountered in a previous project. What was your approach to diagnosing and resolving it, and what did you learn about improving process efficiency?" (Emphasize your debugging process and focus on automation/optimization).

Company & Culture Questions:

• LSEG Values: "How do you embody LSEG's values of Integrity, Partnership, Excellence, and Change in your daily work as a developer?" (Research the values thoroughly and prepare specific examples).
• Team Dynamics: "Describe your ideal team environment. How do you contribute to a positive and productive team culture, especially when working in a hybrid or globally distributed setting?" (Focus on collaboration, communication, and mentorship).
• Impact Measurement: "How do you measure the success of your work beyond code functionality? What key metrics do you track to demonstrate the value of your contributions to a project or business objective?" (Relate this to user experience, performance, and operational efficiency).

Portfolio Presentation Strategy:

• Storytelling: Structure your portfolio presentation as a narrative. Start with the problem, outline your solution (your role and technical approach), highlight key achievements (quantifiable results), and discuss lessons learned.
• Focus on Demonstrable Skills: For each project, explicitly point out how it demonstrates your expertise in React, UI/UX, automated testing (Cypress), API integration, and your understanding of operational considerations.
• Interactive Elements: If possible, have live demos or interactive prototypes ready. Be prepared to navigate through the code or UI to explain specific implementations.
• Address the "Why": For every decision you made (technical, design, process), be ready to explain why you made it, considering alternatives, constraints, and trade-offs.

📝 Enhancement Note: Prepare to answer questions that probe your understanding of operational stability, security, and efficiency within a development context, not just pure coding skills. Your portfolio should serve as tangible evidence of your ability to deliver robust, user-centric solutions in a regulated environment.

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📌 Application Steps

To apply for this CDSClear Senior React Web UX/UI Developer position:

• Submit your application through the LSEG careers portal via the provided link.
• Tailor Your Resume: Emphasize your experience with React, TypeScript, UI/UX design, automated testing (especially Cypress), and API integration. Quantify achievements where possible, focusing on impacts related to efficiency, quality, or user experience.
• Prepare Your Portfolio: Select 2-3 strong projects that best showcase your skills relevant to this role. Ensure they highlight your end-to-end involvement, design capabilities, and any automation implemented. Be ready to discuss them in detail.
• Research LSEG: Understand the company's mission, values (Integrity, Partnership, Excellence, Change), and its critical role in financial markets infrastructure. Familiarize yourself with CDSClear if possible.
• Practice Interview Questions: Prepare answers for technical questions on React and JavaScript, as well as behavioral questions focusing on collaboration, problem-solving, and your experience in regulated environments. Practice articulating 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.