Front End UI Developer

Front End UI Developer

Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you'll have the opportunity to grow your career, give back to your community and make a real impact.

Job Overview

The Applications Development Senior Programmer Analyst is an intermediate level position responsible for participation in the establishment and implementation of new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to contribute to applications systems analysis and programming activities.

Responsibilities :

Collaborate with cross-functional teams to build and maintain web applications.

Develop and maintain front-end applications using ReactJS, Typescript and modern UI frameworks.

Build scalable backend services and APIs using NestJS.

Write clean, maintainable and testable code following best software development practices.

Ensure UI / UX designs are implemented accurately and responsively.

Participate in code reviews and provide constructive feedback.

Troubleshoot, debug and optimize performance across tech stack.

Contribute to continuous integration / continuous deployment (CI / CD) processes.

Document technical designs, processes and workflows.

Qualifications :

Proficiency in ReactJS (functional components, hooks, context API, state management)

Experience in Typescript or similar language (typing, generics, interfaces, advance features)

Solid foundation in HTML5, CSS3 and modern responsive design practices.

Demonstrated experience in building and deploying web applications using ReactJS and NestJS.

Experience with CSS frameworks (Tailwind, Bootstrap, Material UI or similar)

Understand of frontend build tools (Webpack, Vite, Babel)

Hands-on experience with NestJS or similar framework (modules, services, controllers, dependency injection)

Strong knowledge of RESTful APIs and / or GraphQL.

Familiarity with databases (PostgreSQL, MySQL or MongoDB)

Experience with ORMs (TypeORM, Prisma, Sequelize)

Familiarity with testing frameworks (Jest, React Testing Library, Supertest, Cypress)

Familiarity with Git-based workflows (GitHub / GitLab / Bitbucket)

Knowledge of CI / CD pipelines and deployment practices (Docker, Kubernetes or cloud providers)

Education :

Bachelor's degree / University degree 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.