Full Stack JavaScript Developer (Focus: Testing) (Senior) 0628

Recruiter:

Open Source (Pty) Ltd

Job Ref:

JHB001273/DL

Date posted:

Friday, September 12, 2025

Location:

Menlyn, South Africa

SUMMARY:
Are you a sharp, detail-driven Full Stack JavaScript Developer with a strong focus on automated testing? Join our high-performing Platform Development team of 25+ talented professionals working on SCP.apps a cutting-edge Software Developer Platform.
You’ll play a critical role in shaping, developing, and maintaining our platform’s architecture with an emphasis on test-driven development and quality engineering.

POSITION INFO:
Key responsibilities:

Write, maintain, and optimize automated test suites using Jest and Playwright
Define and drive testing strategy, test case design, and defect management
Design, build, and maintain full-stack features using Node.js, Apollo, React, GraphQL, MongoDB, PostgreSQL, REST APIs
Implement reusable UI components and secure user flows (authentication, permissions, routing)
Collaborate with product owners, testers, and engineers to ensure high-quality releases
Participate in code reviews and uphold testing standards across the team
Mentor junior developers and share testing best practices
Monitor quality metrics, manage risks, and support 2nd/3rd level issue resolution on a rotational basis
Continuously stay updated on tech and testing trends

Key requirements:

Automated testing using Jest (unit/integration)
End-to-end testing frameworks (e.g., Playwright)
Strong experience with testing frameworks such as Jest (unit, integration, and mocking)
TypeScript / JavaScript (ES6 +) / React (with Typescript) and backend development experience
MERN stack + Typescript (MongoDB, Express.js, React, Node.js) + postgres
Git
Agile methodology
Docker & Docker Compose
CSS and styling frameworks/ Ant Design (antd)
Redis
GraphQL
AWS experience, especially ECS and Lambda
API testing tools: Postman, Insomnia
Performance testing tools
Knowledge of X-Ray, Confluence, JIRA
Familiarity with LLMs and prompting techniques
Solid understanding of SDLC, STLC, and Agile methodologies

Join a team where your technical excellence, testing discipline, and innovation will directly impact developers worldwide. Be part of something exciting!!!! apply today

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