Job Description

Required Qualifications:

Experience & Technical Leadership:

8+ years of progressive experience in Frontend/Full-Stack Applications Development or Systems Analysis, with a substantial and demonstrated focus on modern UI technologies, especially React.js.
Proven experience in successfully leading, architecting, and delivering complex frontend software development projects from conceptualization to production deployment.
Demonstrated expertise in technical leadership, including providing guidance, mentorship, and conducting comprehensive code reviews for frontend development teams.
Subject Matter Expert (SME) in React application development, encompassing advanced knowledge of React.js, its ecosystem, best practices, and design patterns.
Strong proficiency in software architecture principles, frontend design patterns (e.g., MVVM, unidirectional data flow), and object-oriented/functional programming paradigms.

Core Technical Proficiency:

Expert-level knowledge of JavaScript (ES6+) and TypeScript, with extensive hands-on experience in building scalable, resilient, and high-performance single-page applications (SPAs) and Progressive Web Apps (PWAs).
Deep understanding of the React.js library, including Hooks, Context API, component lifecycle, and performance optimization techniques.
Extensive experience with state management libraries (e.g., Redux, Zustand, Recoil) and routing libraries (e.g., React Router).
Strong command of modern web technologies: HTML5, CSS3, and CSS preprocessors (e.g., Sass, Less) or CSS-in-JS solutions (e.g., Styled Components, Emotion).
Proficiency in building responsive and adaptive user interfaces, ensuring cross-browser compatibility and accessibility (WCAG standards).
Proven expertise in consuming secure RESTful APIs and GraphQL endpoints.
Hands-on experience with frontend build tools (e.g., Webpack, Vite, Rollup) and package managers (npm, Yarn).
Experience with CI/CD systems (e.g., Jenkins, GitLab CI, GitHub Actions) for automated frontend testing, building, and deployment pipelines.
Familiarity with cloud platforms (e.g., AWS, Azure, GCP) and concepts of containerization (Docker, Kubernetes) for deploying frontend applications.
Advanced troubleshooting, debugging, and performance optimization skills for client-side applications.
Proficiency in automated frontend testing frameworks (e.g., Jest, React Testing Library, Cypress, Playwright) and a strong advocate for Test-Driven Development (TDD).
Solid understanding of secure coding practices and application security principles relevant to frontend development (e.g., XSS, CSRF protection).
Expertise in modern version control systems, particularly Git, including advanced branching strategies and pull request workflows.

Methodology & Professional Skills:

Deep understanding and practical experience with Agile/Scrum methodologies and fostering collaborative development environments.
Exceptional ability to adjust priorities dynamically and manage multiple tasks effectively as circumstances dictate.
Demonstrated leadership and project management skills, including stakeholder communication and resource allocation.
Consistently demonstrates clear, concise, and effective written and verbal communication skills for technical and non-technical audiences.

Polyglot Programming Exposure:

Experience or familiarity with backend development using Node.js (e.g., Express.js, NestJS) or other languages relevant to full-stack development.

Big Data & Analytics Exposure:

Exposure to Big Data technologies (e.g., Apache Spark, Hadoop, Kafka) and experience in building data processing pipelines.
Familiarity with data warehousing concepts and relevant tools.

Artificial Intelligence (AI) Proficiency:

Practical experience using AI tools such as Copilot, Devin, Windsurf, Antigravity, and Claude.
Experience with Agentic AI tools and their application in development workflows.
Understanding and practical application of Generative AI concepts and tool usage.

Cloud & Industry Certifications:

Relevant cloud certifications (e.g., AWS Certified Developer, Azure Developer Associate, Google Cloud Professional Developer).
Industry certifications in project management (e.g., PMP) or Agile methodologies (e.g., CSM, CSPO).

Domain Knowledge:

Understanding of financial services industry domain, regulatory requirements, and compliance standards.

Job Family Group:

Job Family:

Time Type:

Most Relevant Skills

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Senior React and Java Developer

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Job Description

Interview Questions of Senior React and Java Developer at Citi