Apply: https://processity.ai/careers/fullstack-ai-engineerBigMantra is a Vertical Autonomous AI Agent Builder we build AI companies that go a mile deep into specific industries. Our products include Mantra Spaces (AI-powered UK HMO property management) and Verity Law (AI-powered legal conveyancing). Our team is small, our stack is modern, and your code ships to production the same week you write it.We're looking for a Fullstack AI Applied Engineer who can build full applications end-to-end and wire AI agents into production systems that real users depend on.WHAT YOU'LL DO Build and ship full-stack web applications using React / Next.js and Python / Node.js Design and implement AI agent workflows using LangChain, LangGraph, Claude Agent SDK, Agno, or similar Integrate agents with real-world APIs Salesforce, Google Workspace, WhatsApp Business, email providers Build and optimize database layers production SQL, schema design, RAG pipelines Own deployment and infrastructure — Docker services, CI/CD pipelines on AWS or Azure Write tests that matter — E2E, load tests, performance benchmarks Collaborate directly with the founding team on architecture and product directionMUST HAVE 3+ years of professional software engineering experience Strong JavaScript / TypeScript — React, Next.js, Node.js in production Strong Python — backends, agent systems, data pipelines Hands-on experience with at least one AI agent framework (LangChain, LangGraph, Claude Agent SDK, Agno, or equivalent) Docker services for containerization and deployment CI/CD pipelines — GitHub Actions, GitLab CI, or similar Deployment experience on AWS or Azure Solid SQL and database skills — schema design, query optimizationGOOD TO HAVE Experience with autonomous agents — MCP (Model Context Protocol), skills, plugins, tool-use Memory and context management for long-running agents Prompt engineering and optimizationCOMPENSATION & BENEFITS 30L – 50L per annum (based on experience) Equity / ESOPs — early-stage participation Remote-friendly Learning budget — courses, conferences, AI tooling subscriptions Flexible hours — output over seat timeRole: Full Stack Developer,Industry Type: Software Product,Department: Engineering - Software & QA,Employment Type: Full Time, PermanentRole Category: Software DevelopmentEducationUG: Any Graduate