Senior Full Stack Developer (React & Node.js)

SavageOne Pty Ltd; Johannesburg; On-site; ZAR 600,000 - 900,000; Full time

Job summary

A leading technology company in Johannesburg is seeking an experienced Senior Full Stack Developer to develop and maintain scalable web applications using React.js and Node.js. Responsibilities include designing RESTful APIs and leading architectural decisions. Ideal candidates will have over 5 years of experience and proficiency in various modern technologies including CI/CD, Docker, and cloud platforms. This role offers the chance to work in a dynamic environment with opportunities for mentorship.

Qualifications

• 5+ years of experience as a Full Stack Developer.
• Strong proficiency in React.js (Hooks, Context API, Redux, Next.js is a plus).
• Backend expertise in Node.js, Express.js, and Nest.js.
• Experience with database design and management (PostgreSQL, MongoDB, Firebase, or DynamoDB).
• Hands-on experience with REST APIs, GraphQL, and WebSockets.

Responsibilities

• Develop and maintain scalable web applications using React.js and Node.js.
• Design and implement RESTful APIs and GraphQL endpoints.
• Lead architectural decisions for performance, security, and scalability.
• Work closely with UI/UX designers to implement user-friendly interfaces.
• Implement CI/CD pipelines, automated testing, and deployment workflows.

Skills

React.js

Node.js

REST APIs

GraphQL

DevOps practices

TypeScript

Tools

Docker

AWS

PostgreSQL

MongoDB

Firebase

Job description

Senior Full Stack Developer (React & Node.js)

About the job Senior Full Stack Developer (React & Node.js)

About the Role

Key Responsibilities

• Develop and maintain scalable web applications using React.js for frontend and Node.js for backend services.
• Design and implement RESTful APIs and GraphQL endpoints to support frontend and mobile applications.
• Lead architectural decisions, ensuring performance, security, and scalability.
• Work closely with UI/UX designers to implement responsive and user-friendly interfaces.
• Integrate with databases (SQL & NoSQL like PostgreSQL, MongoDB, Firebase) and caching solutions.
• Implement authentication and authorization mechanisms (JWT, OAuth, Role-based Access Control).
• Ensure CI/CD pipelines, automated testing, and deployment workflows are in place.
• Provide technical mentorship to junior developers and contribute to best practices.

Required Skills & Experience

5+ years of experience as a Full Stack Developer.
Strong proficiency in React.js (Hooks, Context API, Redux, Next.js is a plus).
Backend expertise in Node.js, Express.js, and Nest.js.
Experience with database design and management (PostgreSQL, MongoDB, Firebase, or DynamoDB).
Hands-on experience with REST APIs, GraphQL, and WebSockets.
Strong understanding of DevOps practices, CI/CD, Docker, and cloud platforms (AWS, GCP, or Azure).
Experience with testing frameworks (Jest, Cypress, Mocha).
Proficiency in TypeScript is a plus.
Knowledge of agile development methodologies (Scrum, Kanban).
Excellent problem-solving skills and ability to work in a fast-paced environment.

Preferred Qualifications

• Experience with Microservices and Serverless architecture.
• Familiarity with Web3, blockchain, or AI/ML is a plus.
• Prior experience leading a development team.