The posting
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 & Architecture Patterns Container Orchestration GraphQL, microservices, serverless architectures
Docker
Experience building AI agents or LLM-powered AI Agent Development features (e.g., agentic workflows, RAG, tool Preferred calling)
Qualifications & Certifications
• Bachelor's degree in Computer Science, Information Technology, Software Engineering, or equivalent practical experience.
• 6-9 years of professional, hands-on full stack development experience with Node.js, React, and MongoDB (MERN) in production environments. • Demonstrated, hands-on experience with AI-assisted development tools and workflows in real projects - mandatory, not just casual/occasional use. • Deep understanding of REST API design, microservices, and scalability patterns. • Strong testing skills (unit, integration, end-to-end) using Jest, React Testing Library, or similar. • Familiarity with cloud platforms (AWS, GCP, or Azure) and CI/CD pipelines.
Soft Skills & Cultural Fit
• Excellent written and verbal communication skills, with effective cross-functional collaboration. • Comfortable working independently during IST hours while collaborating with international clients and team members across time zones. • High sense of ownership - able to pick up an existing codebase quickly and take it forward with minimal hand-holding. • Curious, growth-oriented mindset, with genuine enthusiasm for AI-assisted engineering practices. Confidential 3 PEOPLE & DELIVERY
What We Offer
• Opportunity to work on real-world product engineering platform. • A team culture built around AI-first development - access to modern AI coding tools and workflows from day one. • Collaborative, technically strong team with a culture of code quality and continuous improvement. • Competitive compensation and professional development support.
