AI Fullstack Engineer (Remote)

Experience: 4.00 + years
Salary: INR 3000000-4999997 / year (based on experience)
Expected Notice Period: 7 Days
Shift: (GMT+05:30) Asia/Kolkata (IST)
Opportunity Type: Remote
Placement Type: Full Time Permanent position(Payroll and Compliance to be managed by: A human-in-the-loop infrastructure platform that connects AI agents with verified experts in real time)
(*Note: This is a requirement for one of Uplers client - A human-in-the-loop infrastructure platform that connects AI agents with verified experts in real time)
What do you need for this opportunity
Must have skills required:
MCP Integration, Routing Logic, Stripe Connect, PostgreSQL, Websockets, AI Coding Agents, Python, FastAPI, React Js, Next Js, React Native
A human-in-the-loop infrastructure platform that connects AI agents with verified experts in real time is Looking for:
AI Full-Stack Engineer Humwork (YC X26)
About Humwork
Humwork is building the real-time marketplace where AI agents call human experts when they get stuck. Think Waymos remote driver assistancebut for AI coding agents. When Claude Code or Cursor hits a wall, our MCP server connects it to a vetted human expert in seconds.
Were in YCs Spring 2026 batch. Two founders. Moving fast. Were looking for a single exceptional engineer who can own the full picture: from the AI intelligence layer that decides when agents need help, to the real-time infrastructure that connects them with experts, to the mobile app that puts jobs in experts hands.
What Youll Do
AI & Agent Intelligence
Platform & Infrastructure
Autonomous Escalation Systems: Design and implement the core intelligence that detects when coding agents need human helpbalancing accuracy with appropriate escalation frequency
MCP Server Architecture: Build robust, scalable MCP server integrations across Cursor, Claude Code, Lovable, and other coding agents
AI-to-Human Handoff Pipeline: Develop and optimize the real-time, low-latency handoff from AI agent to human expertprompt engineering, tool descriptions, trigger conditions, context packaging
AI Agent Orchestration: Design sophisticated prompting and tool-calling systems that enable natural conversation between AI agents and human experts
Experimentation & Benchmarking: Run A/B tests on prompts, benchmark agent performance against baselines, and optimize call frequency and resolution quality
Platform & Infrastructure

Real-time Communication Systems: Architect WebSocket infrastructure supporting thousands of concurrent AI-expert sessionsreconnects, message ordering, connection scaling, timeout handling, and message reliability
Scalable Backend: Design and build the FastAPI backend end-to-endexpert matching, session management, billing, analytics, and API design
Expert Routing Engine: Create algorithms that match coding problems to the most suitable available expert based on skillset, language, timezone, availability, and problem context
Database & Data Layer: Own schema design, complex queries, connection pooling, real- time data synchronization, and caching strategies with PostgreSQL and Redis
Product & User Experience
Expert Mobile App: Build and ship the expert-facing mobile app (React Native/Expo) with Uber-style push notifications, real-time chat, and availability controls
Web Dashboard: Develop the web-facing dashboard (Next.js) for analytics, onboarding, and session management
Expert Marketplace Platform: Implement onboarding flows including identity verification, skill assessment, credential verification, and availability scheduling
Payments: Integrate Stripe Connect for multi-party payment flowsexpert payouts, platform fees, and billing
You Should Apply If

• You use AI coding agents (Claude Code, Codex, Cursor) daily and are a power user of it
• Youve built with MCP servers, LLM tool-calling, or AI agent frameworks
• You understand prompt engineering at a deep levelnot just writing prompts, but designing system instructions that shape agent behavior
• Expert-level Python: FastAPI, async programming, and LLM API integrations
• Strong experience with React/Next.js and building production web applications
• Youve built real-time systems with WebSocketsand you know how to handle reconnects, message ordering, and connection scaling
• Comfortable with PostgreSQL and ORMs (SQLAlchemy or similar), plus Redis for caching, pub/sub, and queue management
• Youve shipped mobile apps (React Native preferred) or PWAs with push notifications
• Cloud infrastructure experience: AWS/GCP deployment, containerization, CI/CD
• You can prototype fast and know when to reach for Opus 4.6 vs. 5.3 Codex
• You thrive at the intersection of product, research, and engineeringand can own features end-to-end from schema design to shipped UI
  

Bonus Points

• Youve contributed to or built MCP servers/plugins
• Experience with autonomous agent frameworks (CrewAI, AutoGen, etc.)
• Youve built marketplace or on-demand matching systems (expert routing, driver dispatch,etc.)

• Looking to get Placed? Try our Placement Guarantee Plan

  Get Hired
  Familiarity with Stripe Connect or multi-party payment flows
• Youve benchmarked AI agent performance or worked on evals
• Background in human-computer interaction, developer tools, or gig economy platforms
• Open-source contributions in relevant technologies
• Background in human-computer interaction, developer tools, or gig economy platforms
• Open-source contributions in relevant technologies
  

What We Offer
Equity: Ownership in a Y Combinator company with clear path to liquidity
Ownership: Youll be the engineering team along with the technical founders. Youll be part of every system, every decision, every architecture call.
Impact: Define how AI agents and humans collaborate
Growth: Work directly with YC partners and experienced founders at a company building for a $100B+ market
Flexibility: Remote-first, core hours overlap with US Pacific Time
Interview Process

• Interview with founders
• Technical screening (AI systems + WebSocket architecture + database scaling)
• AI Code review and pair programming session
  

Apply With
GitHub showcasing relevant projects
Brief note on why AI-human collaboration excites you
Your experience with coding agents (Cursor, Claude Code, etc.)
Were especially interested in candidates who are excited about the intersection of AI and human expertiseand who want to build the infrastructure that makes both better.
How to apply for this opportunity

• Step 1: Click On Apply! And Register or Login on our portal.
• Step 2: Complete the Screening Form & Upload updated Resume
• Step 3: Increase your chances to get shortlisted & meet the client for the Interview!
  

About Uplers:
Our goal is to make hiring reliable, simple, and fast. Our role will be to help all our talents find and apply for relevant contractual onsite opportunities and progress in their career. We will support any grievances or challenges you may face during the engagement.
(Note: There are many more opportunities apart from this on the portal. Depending on the assessments you clear, you can apply for them as well).
So, if you are ready for a new challenge, a great work environment, and an opportunity to take your career to the next level, dont hesitate to apply today. We are waiting for you!