{"id":2966498,"url":"https://alion.io/job/obbian-technologies-opc-private-limited-lead-fullstack-developer-ai-systems-architecture","title":"Lead Fullstack Developer (AI Systems & Architecture)","company":{"id":4455346,"name":"Obbian Technologies OPC Private 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Kafka","optional":true},{"name":"Git","optional":true},{"name":"JavaScript","optional":true},{"name":"Kubernetes","optional":true},{"name":"LangChain","optional":true},{"name":"LlamaIndex","optional":true},{"name":"Multimodal AI","optional":true},{"name":"RabbitMQ","optional":true}],"status":"live","first_seen_at":"2026-10-20T07:38:34Z","employer_posted_date":null,"last_verified_at":"2026-10-20T07:38:34Z","board_verified":false,"closed_at":null,"days_open":1,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":1},"description":"Role & Responsibilities\nOwn end-to-end architecture, system design, development, and production deployment of scalable, AI-powered applications.\nArchitect and develop high-performance backend services using Node.js, NestJS, TypeScript, Express.js, and Go.\nDesign scalable web applications using React.js and Next.js, and cross-platform mobile applications using Flutter and Dart.\nDesign distributed systems, microservices, event-driven architectures, and real-time applications capable of handling massive data volumes and high concurrent traffic.\nDesign and optimize PostgreSQL/MySQL databases, MongoDB, Redis caching, database indexing, transactions, and query performance.\nBuild real-time ride-booking, driver-allocation, location-tracking, and proximity-based matching systems using geospatial technologies such as PostGIS.\nDesign and implement REST APIs, WebSockets, secure authentication, authorization, RBAC, and third-party integrations.\nBuild and integrate Generative AI applications, LLM-powered chatbots, AI agents, RAG pipelines, embeddings, vector databases, tool calling, and intelligent automation workflows.\nDevelop AI and backend services using Python and integrate LLM platforms such as OpenAI, Claude, and Gemini.\nArchitect secure payment integrations, transaction workflows, webhook processing, idempotency, and payment reconciliation.\nDesign and implement cloud-native infrastructure using AWS, Docker, CI/CD pipelines, and production monitoring tools.\nEnsure application security, scalability, reliability, performance, maintainability, and cost efficiency.\nLead technical decision-making, code reviews, debugging, performance optimization, documentation, and mentoring of developers.\nIndependently own critical engineering deliverables and drive products from concept and architecture through development, testing, deployment, and production support.\nPreferred Candidate Profile\n710+ years of software development experience, with substantial hands-on experience in technical architecture and production-grade application development.\nExpert-level proficiency in Node.js, NestJS, TypeScript, REST APIs, backend architecture, and microservices.\nStrong experience with React.js, Next.js, and modern frontend architecture.\nHands-on experience with Flutter and Dart for Android and iOS application development.\nProven experience designing scalable systems, handling large data volumes, concurrent workloads, and performance-critical applications.\nStrong experience with PostgreSQL, database design, indexing, query optimization, transactions, Redis, and geospatial systems.\nPractical experience building and deploying LLM-powered applications, AI agents, RAG systems, embeddings, vector search, and AI workflow automation.\nProficiency in Python for AI integrations and backend services; Go language experience is highly desirable.\nStrong understanding of authentication, authorization, application security, payment integrations, and secure API design.\nHands-on experience with AWS, Docker, CI/CD, Git, production deployments, logging, and monitoring.\nFamiliarity with Kafka/RabbitMQ, Kubernetes, LangChain/LlamaIndex, and event-driven architectures is an advantage.\nExceptional system-design, analytical, debugging, and problem-solving skills.\nStrong ownership, independent execution, technical leadership, communication, and mentoring abilities.\nExperience in startups or building 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