EJ 1516 Senior Full Stack Developer

Role Summary Softobiz is looking for a Senior MERN Stack Developer to join the engineering team. You will be responsible for designing and delivering end-to-end features across our Node.js backend and React frontend, taking ownership from API design through to UI delivery. This role is being hired to backfill a departing team member, so the ideal candidate can ramp up quickly and take over an existing area of the codebase with minimal disruption to delivery. AI-based development is central to how the engineering team works. We are specifically looking for someone well versed in AI-assisted development - comfortable using AI coding assistants as part of their daily workflow to design, build, test, and ship features faster and with higher quality. Key Responsibilities Backend Development • Design and implement RESTful APIs using Node.js and Express, with clean, well-tested, maintainable code. • Model data and optimize MongoDB queries for large data volumes, keeping performance and scalability in mind. • Integrate with third-party services and internal systems, handling authentication, validation, and error management. Frontend Development • Build and maintain complex front-end applications using React, including state management, component testing, and performance tuning. • Collaborate closely with product management, design, and QA to define requirements and deliver high-quality features. AI-Assisted Development • Use AI coding assistants (Claude Code, GitHub Copilot, Cursor, or similar) as a core part of the daily development workflow - for code generation, refactoring, review, and test creation. • Apply AI-assisted approaches to accelerate feature delivery without compromising code quality or test coverage. • Share learnings and best practices on AI-assisted development with the wider team. Quality, Delivery & Operations • Drive best practices in code quality, testing, and CI/CD across the codebase. • Troubleshoot production issues and lead performance optimization efforts. • Take end-to-end ownership of features, ensuring consistency and reliability across the full stack. Required Technical Skills Domain Skills & Technologies JavaScript, TypeScript, SQL Must Backend Node.js, Express.js, RESTful API design, Webhook integrations Must Frontend React 18, Redux / Context API, HTML5, CSS3 Must Database MongoDB - data modeling and query optimization for large data volumes Must Testing Jest, React Testing Library (or similar) - unit, integration, and end-to-end testing Must DevOps / CI-CD Git, GitHub Actions (or equivalent), CI/CD pipeline management Must AI-Assisted Development - Daily, hands-on use of AI coding assistants (Claude Code, GitHub Copilot, Cursor) for code generation, review, and testing - primary hiring criterion for this role Must Preferred: Auth & Security OAuth, JWT, session management Cloud Platforms AWS, GCP, or Azure - deployment, scaling, infrastructure management API &…