Full Stack Engineer

Full Stack Developer (4?8 Years Experience) Location: Bengaluru Company: Instavans Technologies Pvt. Ltd. Products: SmarTruck (Transportation Management System), RailVision (Rail Management System), HubRMS, and upcoming Port & Sea Freight modules. About Us Instavans is building India?s most advanced multimodal logistics SaaS platform ? digitizing the movement of goods across road, rail, and ports . Our suite of products ? SmarTruck, RailVision, and HubRMS ? is used by top industrial enterprises like Jindal Steel Limited (JSL), Tata Power Solar Systems and other enterprise clients , enabling end-to-end control over their logistics operations. From live GPS dashboards to automated billing, we engineer the systems that keep steel, cement, and raw material supply chains running. Our full stack spans Next.js + Fastify + MongoDB + Redis + AWS , built for scale, resilience, and clarity. Role Overview As a Full Stack Developer, you?ll work across both frontend (Next.js/React) and backend (Node.js/Fastify) systems that power our logistics control towers, tracking dashboards, and billing engines. You?ll collaborate closely with designers, engineers, and DevOps to build responsive, data-heavy, and production-grade features that are used daily in plants, ports, and control rooms. This isn?t a cookie-cutter CRUD job ? it?s hands-on, architecture-aware work at the intersection of live operations, analytics, and user experience. Key Responsibilities Build, test, and deploy end-to-end features across frontend (Next.js/React) and backend (Node.js/Fastify) layers. Design clean, modular APIs and connect them to robust, interactive frontend components. Implement and optimize MongoDB aggregations , indexing, and caching strategies for high-volume datasets. Work with Redis + BullMQ for background jobs, notifications, and live event processing. Integrate complex systems like SAP , FOIS , and GPS providers through REST APIs. Develop and maintain interactive dashboards , data tables , and maps (Mapbox/Leaflet/Kepler.gl) for TMS and RMS modules. Implement role-based access, workflow automation , and SLA tracking in the UI and backend. Ensure code quality, maintainability, and scalability through reusable components and modular design. Collaborate with product and design teams to transform operational requirements into intuitive digital workflows. Participate in code reviews , CI/CD pipelines (GitLab) , and performance monitoring in AWS EC2 + MongoDB Atlas environments. Must-Have Skills 4?8 years of experience as a full stack developer in production SaaS environments. Strong hands-on expertise with: Frontend: React.js, Next.js, MUI, TypeScript, Tailwind CSS. Backend: Node.js (Fastify/Express), MongoDB (Mongoose), Redis, BullMQ. Proficient in REST API design , async handling, and service integration. Strong understanding of state management (Redux, React Query) . Proven experience in data modeling , aggregation pipelines , and performance optimization . Good knowledge of Git, GitLab CI/CD , and deployment workflows. Understanding of AWS fundamentals (EC2, S3, PrivateLink, monitoring) . Ability to debug end-to-end issues across frontend, backend, and database layers. Clear communication and the ability to collaborate across disciplines (UI/UX, backend, QA, product). Nice-to-Have Experience with geospatial visualization (Mapbox, Leaflet, Kepler.gl). Prior exposure to enterprise systems (ERP, SAP, logistics, or manufacturing domains) . Familiarity with microservice architecture , message queues , and API gateways . Experience with TypeScript throughout the stack . Knowledge of server actions, SSR, caching strategies, and load optimization in Next.js. Curiosity to explore Temporal.io, WebSockets, and event-driven architectures . Why Instavans Work on real-world logistics tech that connects trucks, rakes, ports, and plants across India. Own modules that handle live tracking, billing, control tower automation , and real-time alerts . Stack designed for scale: Fastify + Next.js + MongoDB + Redis + BullMQ + Kafka + Temporal.io + AWS . No fluff ? engineering work that matters, used daily in operations by top industrial clients. Join a tight, technical team that values design clarity, deep problem-solving, and ownership. You?ll ship features that literally move the country?s logistics network.