Senior Full Stack Developer (JavaScript)

EPAM Systems; Argentina; Presencial; ARS 88.483.829 - 147.473.049; Jornada completa

Descripción de la vacante

EPAM Systems is seeking a Senior Full Stack Developer with strong JavaScript experience to join our team. You will autonomously develop end-to-end features on a modern cloud-native AWS infrastructure, collaborating with Product, UX, the Tech Lead, and business stakeholders.

You will build with Node.js on the backend and Angular on the frontend, write tests with Jest and Cypress, and participate in design discussions to shape the architecture and ensure quality.

Formación

• At least 3 years of professional Full Stack development experience.
• Proficient in TypeScript, RxJS, and SCSS.
• Strong Angular frontend experience.
• Hands-on Fastify backend development.
• Experience consuming and integrating REST APIs.
• Experience with AWS services (Lambda, ECS, S3, DynamoDB, CloudWatch).
• Knowledge of Clean Code and SOLID principles.
• Familiar with event-driven architectures and messaging (RabbitMQ, AWS SNS/SQS).
• Experience with unit testing (Jest) and E2E testing (Cypress).
• Proficient English (B2+).

Responsabilidades

• Develop and optimize features using Node.js on the backend and Angular on the frontend.
• Participate in squad design discussions and contribute to architecture decisions.
• Collaborate on deployment and monitoring in AWS (Lambda, ECS, EKS).
• Write and run automated tests with Jest and Cypress.
• Ensure performance and scalability in event-driven architectures.
• Translate requirements from Product/UX/Business into technical solutions.
• Engage in cross-code reviews to raise team standards.

Conocimientos

JavaScript

TypeScript

Angular

Node.js

RxJS

SCSS

REST APIs

Jest

Cypress

Clean Code

SOLID

Event-driven

RabbitMQ

AWS Lambda

AWS ECS

S3

DynamoDB

CloudWatch

Kafka

CI/CD

GitHub Actions

GitLab CI

Herramientas

Fastify

AWS

GitHub Actions

GitLab CI

Descripción del empleo

We are seeking a talented Senior Full Stack Developer with strong experience in JavaScript to join our team. In this role, you will become a key driver within the squad, autonomously executing end-to-end development on a modern cloud-native infrastructure in AWS, collaborating in a dynamic ecosystem with Product, UX, the Tech Lead, and business stakeholders.

Responsibilities

• Develop and optimize new features using Node.js on the backend and Angular on the frontend, ensuring clean and maintainable code
• Actively participate in the squad's technical and software design discussions, contributing your perspective and adding to the architecture defined by the Tech Lead
• Collaborate on the deployment and monitoring of components in the cloud using AWS services such as Lambda, ECS, and EKS
• Ensure software quality by writing and running automated unit and integration tests using Jest and Cypress
• Ensure code performance and scalability within event-driven architectures
• Work with Product, UX, and Business teams to understand functional requirements and translate them into efficient technical solutions
• Participate in cross-code reviews to maintain consistency and raise the team's overall technical standards

Requirements

• At least 3 years of professional relevant experience as a Full Stack Developer, ideally in digital or medium to high-scalability environments
• Solid proficiency in TypeScript, RxJS, and SCSS markup
• Strong experience with Angular for frontend development
• Hands‑on experience with Fastify for backend service development
• Experience in the design, consumption, and integration of REST APIs
• Practical knowledge or prior experience interacting with AWS services such as Lambda, ECS, S3, DynamoDB, and CloudWatch
• Application of best practices including Clean Code and SOLID principles
• Understanding of event-driven architectures and messaging platforms such as RabbitMQ and AWS SNS/SQS
• Focus on quality, with experience writing unit tests using Jest, along with Cypress or similar tools for E2E testing
• English at B2 level or higher, with strong written and verbal communication skills

Nice to Have

• Previous experience or knowledge of the Fintech industry, digital banking, or high-transaction platforms
• Familiarity with Apache Kafka for distributed event streaming
• Experience with CI/CD pipelines using tools such as GitHub Actions or GitLab CI