Full Stack Engineer

About WTF

WTF is India’s most ambitious fitness technology company — building a connected ecosystem of physical gyms, digital platforms, AI automation, and data-driven fitness intelligence.

products that run a real business

AI-native builders

The Mindset We’re Hiring

You’re not the kind of person who asks “What’s the API doc?”

You ask — “What’s the user journey? What’s the logic flow? How do we automate this?”

You’re the kind who:

• Builds systems end-to-end without waiting for dependencies.
• Thinks in business logic before writing syntax.
• Uses AI tools daily to move 5x faster.
• Knows when to code, when to automate, and when to rethink the problem entirely.
• Cares about how products feel — not just how they run.

owning systems.

Your Core Responsibilities

1. Product Architecture & Ownership

• Take a

  business problem or feature request

  and translate it into complete architecture — backend, frontend, and database.
• Design data flows, user journeys, state management, and API logic.
• Build

  modular, future-proof systems

  — not code piles that need daily firefighting.
• Think edge cases, failure scenarios, and recovery flows before writing the first line.

2. Full Stack Execution

• Own both backend (Node.js/Express) and frontend (React + TypeScript) — no handoffs.
• Design scalable APIs and data models on PostgreSQL; write migration-safe schemas.
• Implement real-time systems (Socket.IO, WebRTC, etc.) where needed.
• Manage local dev with SQLite and deploy to AWS/Fly.io using proper environment configs.

3. AI-Native Engineering

• Use AI coding tools natively — Cursor, GitHub Copilot, Claude Code, etc.
• Integrate AI APIs (OpenAI, Together AI, Gemini, Bland AI, ElevenLabs) directly into workflows.
• Automate logic, workflows, or monitoring where AI makes sense — not as a gimmick, but as leverage.

4. Product Thinking & UX Awareness

• Collaborate with design and product only for direction — not dependencies.
• Think about

  how users will interact

  with your feature — not just what they’ll click.
• Understand micro-interactions, loading states, and real-world behavior.
• Prototype logic in tools like Lovable.dev or Figma and ship independently.

5. Cloud & Infra Responsibility

• Deploy and maintain systems on AWS (EC2, S3, RDS, CloudFront) or Fly.io.
• Handle production environments, backups, scaling, and uptime with confidence.
• Write secure, env-driven, production-ready configurations.
• Optimize for speed and cost, not comfort.

6. Culture & Speed

• Commit daily. Ship weekly. Automate everything.
• No blockers, no blame. You find solutions.
• Review code not for style, but for clarity, modularity, and reasoning.
• Mentor others to think like product engineers, not coders.

Tech Stack

• Frontend:

  React 18, TypeScript, Vite, Tailwind CSS, shadcn/ui, Framer Motion

• Backend:

  Node.js (Express), REST APIs, WebSockets, GraphQL (optional)

• Database:

  PostgreSQL (RDS), Prisma ORM, SQLite (local dev)

• Infra:

  AWS / Fly.io / Docker (coming), GitHub CI/CD

• AI/Automation:

  OpenAI, Together AI, Gemini, Bland AI, Make.com, WWebJS

• Dev Environment:

  Cursor IDE, Lovable.dev, GitHub Projects, Postman

What You’ll Build (Examples of Real Work)

• WTF

  WhatsApp AI Bot

  — Node + React + Socket.IO dashboard.

• Recruitment & HRMS Platform

  — full-stack system for hiring and payroll.

• CCTV AI Compliance Engine

  — real-time video + AI analysis dashboard.

• Sales AI Bot Integration

  — live call intelligence with Bland AI.

• Revenue Intelligence CRM

  — unified system across gyms, leads, and retention.

Each of these is an actual live project — you’ll own one from day one.

Who You Are

• 6–10 years of experience (startup or high-growth preferred).
• Strong command of JavaScript/TypeScript and modern frameworks.
• Experience building

  real products

  , not just projects.
• Ability to write clear logic for real-world use cases (not textbook code).
• Self-driven, outcome-oriented, and obsessed with clarity and detail.
• Passionate about automation, AI, and the future of tech-driven businesses.
• Excellent communication and documentation habits.

Performance Metrics

• Time-to-ship (not just commit frequency)
• Uptime, speed, and bug rate of owned modules
• AI-assisted velocity and reduction of manual code
• Independence in feature delivery
• Business impact of your build (measurable usage/adoption)

Why WTF

• Direct access to the Founder — no bureaucratic layers.
• Freedom to build products that affect real people daily.
• A culture that celebrates clarity, creativity, and execution speed.
• Real ownership — not tickets.
• The opportunity to

  define the architecture

  of India’s fastest-growing fitness tech OS.

Apply If You’re

• A builder, not a maintainer.
• A thinker, not a follower.
• Someone who can design, code, and deploy — end to end.
• Someone who wants to

  own systems

  , not fix bugs forever.