ReactJS - Frontend Programmer Analyst

The Applications Development Senior Programmer Analyst is an intermediate to senior level position responsible for leading the establishment and implementation of new or revised

ReactJS-based frontend application systems and programs, in coordination with the Technology team. The overall objective of this role is to contribute significantly to applications systems analysis,

frontend architecture design , and programming activities, ensuring robust, scalable, and high-performance user interfaces.

Responsibilities:

• Lead feasibility studies, time and cost estimates, IT planning, risk technology assessments, and frontend solution architecture design for new or revised ReactJS applications.
• Design, develop, and implement highly responsive and scalable user interface components and pages, leveraging modern frontend technologies including Micro-FrontEnd architecture, ReactJS, JavaScript/TypeScript, and modern styling solutions (e.g., modern CSS frameworks, styling libraries), while upholding rigorous best practices and coding standards.
• Monitor and control all phases of the frontend development lifecycle, including analysis, design, construction, testing, and deployment, providing user and operational support on applications to business users.
• Utilize in-depth specialty knowledge of modern frontend development frameworks, particularly ReactJS, to analyze complex UI/UX problems/issues, provide evaluation of business process, system process, and industry standards, and make evaluative judgment.
• Leverage modern development tools, including AI-powered assistants (GenAI/LLMs), to accelerate development cycles, improve code quality, and foster innovation.
• Ensure optimal application performance, responsiveness, and cross-browser compatibility.
• Recommend and develop security measures in post-implementation analysis of business usage to ensure successful system design and functionality, with a focus on frontend security best practices.
• Consult with users/clients and other technology groups on issues, recommend advanced frontend programming solutions, and install and assist customer exposure systems.
• Ensure essential procedures are followed and help define operating standards and processes for frontend development.
• Serve as advisor or coach to new or lower-level analysts, mentoring junior frontend developers.
• Has the ability to operate with a limited level of direct supervision.
• Can exercise independence of judgement and autonomy.
• Acts as Subject Matter Expert (SME) to senior stakeholders and/or other team members.
• Appropriately assess risk when business decisions are made, demonstrating particular consideration for the firm's reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behavior, conduct and business practices, and escalating, managing and reporting control issues with transparency.

Recommended Qualifications:

• 8+ years of relevant experience in software development, with a strong focus on frontend technologies.
• Possess a minimum of 5 years of hands-on experience in designing and developing sophisticated applications with ReactJS, demonstrating proficiency across its comprehensive ecosystem, including React state management libraries, data fetching and networking libraries, and build tools (e.g., Webpack, Vite). Experience with various testing methodologies, including unit testing (e.g., Jest, Vitest) and end-to-end testing, is also essential.
• Proficiency in JavaScript (ES6+), TypeScript, HTML5, CSS3, and responsive web design principles.
• Experience with modern frontend build pipelines and tools
• Familiarity with RESTful APIs and asynchronous request handling.
• Experience with or demonstrated interest in using Generative AI (GenAI) and Large Language Models (LLMs) for faster development, including code generation, debugging, and documentation.
• A strong understanding of diverse technology stacks and architectural strategies, with the ability to critically evaluate and suggest improvements, and adeptness in transitioning to new and evolving technologies as needed.
• Experience and/or exposure to the Banking domain, particularly Capital Markets, is highly preferred and would be a significant advantage.
• Experience in systems analysis and programming of software applications.
• Experience in managing and implementing successful projects, preferably using Agile methodologies.
• Working knowledge of consulting/project management techniques/methods.
• Ability to work under pressure and manage deadlines or unexpected changes in expectations or requirements.
• Experience with version control systems (e.g., Git).
• Understanding of UI/UX principles and ability to collaborate effectively with design teams.

Education:

• Bachelor’s degree/University degree in Computer Science, Engineering, or a related field, or equivalent experience. This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required. ------------------------------------------------------

Job Family Group: Technology ------------------------------------------------------

Job Family: Applications Development ------------------------------------------------------

Time Type: Full time ------------------------------------------------------

Most Relevant Skills Please see the requirements listed above. ------------------------------------------------------

Other Relevant Skills For complementary skills, please see above and/or contact the recruiter. ------------------------------------------------------ Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law. If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi. View Citi’s EEO Policy Statement and the Know Your Rights poster.