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Senior Full Stack Developer (Part time)

Senior Full Stack Developer (Part time)

HILL QUEEN TEASalem,Tamil Nadu, IN
13 hours ago
Job description

Senior Full Stack Developer (MERN + Flutter / React Native)- Part Time

Please read the JD properly before applying!

P.S. : This role is not suitable for someone with less than 4 years of experience.

Engagement Details

  • Type : Part-Time / Freelance (Transition to Full-Time Core Team Role)
  • Phase 1 : Milestone-based engagement
  • Phase 2 : Full-time Core Team position with performance-based compensation and equity allocation
  • Work Mode (For Phase 1) : Remote, flexible hours

We’re building something extraordinary — a next-generation digital commerce and rewards platform into a seamless experience. If you’re an experienced builder who wants to own , not just code, and architect the vision — this is your moment to be part of the founding story.

Your Role

You’ll help build the backend architecture, frontend systems, mobile apps, and integrations — collaborating directly with the founder to bring this project from 0 → 1.

This is a Phase 1 milestone-based engagement that transitions into a full-time core founding role with equity for the right candidate.

Key Responsibilities

  • Architect, develop, test, and deploy a complete e-commerce + rewards ecosystem (Backend + Admin + App) using MERN Stack and Flutter / React Native
  • Develop Admin, Vendor, and User Panels with role-based access control
  • Manage API integrations (payments, wallets, affiliate SDKs, game APIs, etc.)
  • Own DevOps, CI / CD pipelines, and cloud infrastructure (AWS / GCP)
  • Ensure security, scalability, and modularity from Day 1
  • Collaborate with the founder on product architecture, sprints, and roadmap decisions

    • Build and integrate :

  • Wallets & redemption systems
  • Reward & affiliate engines (postback / S2S integrations with networks like CashKaro, GrabOn, etc.)
  • Ad & gaming modules (banner / video / survey APIs)
  • Notifications, analytics, and fraud detection layers

    • Required Skills & Experience

    ✅ MERN Stack Expertise – 5+ years of hands-on experience with MongoDB, Express, React, and Node.js

    ✅ E-commerce / Marketplace Systems – Proven record in building end-to-end platforms

    ✅ Reward / Affiliate Systems – Deep understanding of postback, cashback, or gamification integrations

    ✅ Cloud & DevOps – AWS / GCP setup, CI / CD pipeline management, containerization (Docker / Kubernetes)

    ✅ Security & Data Handling – Role-based access, JWT, encryption, fraud detection

    ✅ Mobile-first Development – Experience integrating Flutter or React Native apps

    ✅ Ownership Mindset – Strategic thinker with the ability to build fast, adapt fast, and ship clean

    Ideal Tech Stack

    Frontend / Mobile

  • Flutter (preferred) or React Native – cross-platform app (Android + iOS)
  • Next.js / React.js – for Admin, Vendor, and Web Panels
  • Deep understanding of responsive UI, modular components, and API integration

    • Backend / APIs

  • Node.js (Express / NestJS) or Django / FastAPI (Python)
  • RESTful & WebSocket APIs, with a strong understanding of microservices
  • Integration with 3rd-party APIs (Affiliate, Ad SDKs, Payment, Game APIs, etc.)
  • GraphQL (bonus)

    • Database & Storage

  • PostgreSQL / MySQL (core)
  • MongoDB / Redis for caching and logs
  • S3 / Cloud Storage for media

    • Infra & DevOps

  • AWS / GCP / Azure
  • Docker / Kubernetes
  • CI / CD : GitHub Actions / Jenkins
  • Monitoring : Prometheus / Grafana / CloudWatch

    • Important to Have

  • Experience in Reward Apps / Affiliate Platforms / Gaming / AdTech / FinTech
  • Worked with multi-tenant vendor systems
  • Knowledge of data pipelines and BI dashboards
  • Familiarity with AI personalization (TensorFlow Lite / OpenAI APIs)
  • Entrepreneurial mindset with a bias for speed, clarity, and ownership

    • How to Apply

    📧 Send your application to arc@hillqueentea.com

    Subject Line : “Full Stack Developer (Core Team)– [Your Name]”

    Include :

  • Links to live projects (especially in e-commerce, reward, or affiliate domains)
  • Describe your experience with affiliate, reward, or gamification-based systems
  • Share your approach to system architecture and tech stack decisions
  • Are you open to joining as a core founding member with a milestone-based structure?
  • Describe your experience with cloud deployments (AWS / GCP) and DevOps workflows.
  • What excites you about working on an early-stage project with milestone-based compensation?
  • How many hours can you dedicate to this project?
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