Senior Full-Stack Engineer: JS/TS, Node & SPA

Softgic; Buenos Aires; On-site; ARS 1,200,000 - 2,000,000; Full time

Job summary

Softgic is seeking a senior full-stack developer with deep expertise in JavaScript/TypeScript, Node.js, and modern frontend development. You will design, build, and refine complex web apps, contribute to system architecture, and mentor other engineers.

The role spans backend services, frontend SPAs, and RESTful API/microservice integration. You will collaborate across distributed teams, participate in code reviews, and uphold security, performance, and data integrity standards while driving best

Qualifications

• 5+ years of expert-level experience with JavaScript and/or TypeScript.
• Strong hands-on development experience with Node.js.
• Professional experience with Express.js.
• Experience building and maintaining complex SPAs.
• Strong experience with at least one modern frontend framework/library (React/Vue/Angular).
• In-depth knowledge of JavaScript, HTML, CSS, and SCSS.
• Experience designing, developing, or integrating RESTful web services and/or microservices.
• Experience with Docker in Linux or macOS environments.
• Experience with NoSQL databases.
• Advanced English (B2+/C1) for collaboration in a distributed team.

Responsibilities

• Design, develop, maintain, and debug complex web applications.
• Build and maintain backend services using Node.js and Express.js.
• Develop complex SPAs using modern frontend frameworks.
• Work across all tiers from databases to frontend applications.
• Design and integrate RESTful APIs and microservices.
• Lead code reviews and promote engineering best practices.
• Contribute to system design focusing on security, scalability, and data integrity.
• Develop and maintain unit tests.
• Create technical documentation throughout the SDLC.
• Collaborate with QA to ensure comprehensive testing strategies.
• Work with CI, TDD, Git, and Agile practices.
• Support modernization and evolution of existing applications.
• Mentor developers and share expertise across the team.
• Operate effectively as a senior individual contributor in a distributed setup.

Skills

JavaScript

TypeScript

REST APIs

Software design

Mentoring

English communication

Tools

Node.js

Express.js

React

Vue.js

Angular

Docker

Git

NoSQL

Job description

Softgic is seeking a senior full-stack developer with deep expertise in JavaScript/TypeScript, Node.js, and modern frontend development. You will design, build, and refine complex web apps, contribute to system architecture, and mentor other engineers.

The role spans backend services, frontend SPAs, and RESTful API/microservice integration. You will collaborate across distributed teams, participate in code reviews, and uphold security, performance, and data integrity standards while driving best