Full Stack Engineer

2 days ago

Mumbai, Maharashtra, India Rentkar Full time ₹ 4,80,000 - ₹ 7,20,000 per year

Full Stack Engineer — Rentkar

Location:
Mumbai (On-site)

Employment Type:
Full-Time

CTC:
₹4 – 6 LPA (based on experience & capability)

About Rentkar

Rentkar is India's fastest-growing zero-deposit tech rental platform, enabling users to rent gadgets like PS5s, gaming laptops, cameras, MacBooks, and more across major cities. We're building the future of the rental economy through access, affordability, and innovation.

Visit

Role Overview

We're looking for a
Full Stack Engineer
who can take ownership of Rentkar's web platform — from building pixel-perfect UI to optimizing backend logic and performance. You'll work directly with the founding team to develop new features, improve site performance, and help scale the product nationwide.

Key Responsibilities

  • Develop and maintain Rentkar's platform using

    and the
    MERN stack (MongoDB, Express, React, )
    .
  • Work on scalable backend APIs, data modeling, and real-time updates.
  • Implement caching and optimization layers using
    Redis
    for performance.
  • Manage state efficiently using
    Redux / Zustand
    and ensure fast, smooth user interactions.
  • Collaborate on UI/UX improvements with
    TailwindCSS
    and component libraries.
  • Integrate AWS services for hosting, storage (S3), CDN, and security.
  • Write clean, modular, and testable code following modern JavaScript practices.
  • Work with third-party APIs (Razorpay, Cloudinary, Maps, etc.) and handle webhooks.
  • Debug, monitor, and optimize performance for both frontend and backend systems.
  • Collaborate with designers, PMs, and ops teams to ship new features quickly.

Required Skills

  • Proficiency in

    ,
    React
    ,

    ,
    Express
    ,
    MongoDB
    .
  • Strong understanding of
    Redis
    ,
    AWS (EC2, S3, CloudFront)
    , and
    API design
    .
  • Good grasp of
    state management (Redux/Zustand)
    .
  • Familiar with
    TailwindCSS
    and responsive frontend design principles.
  • Solid experience with
    Git
    , version control, and agile workflows.
  • Knowledge of
    SEO fundamentals
    ,
    performance optimization
    , and
    server-side rendering (SSR)
    .
  • Problem-solving mindset with attention to detail and performance.

Good to Have

  • Experience with
    TypeScript
    ,
    14 App Router
    , or
    server actions
    .
  • Understanding of
    CDN caching, on-demand ISR, SSR optimization
    .
  • Basic knowledge of
    CI/CD
    ,
    Docker
    , or
    Nginx
    setups.
  • Contributions to open-source projects or a personal portfolio.
  • Familiarity with analytics tools (GTM, GA4, Mixpanel).

What You'll Get

  • Work directly with the founders and shape a product used by thousands across India.
  • Real product ownership — from backend architecture to front-end polish.
  • Startup environment with creative freedom and visible impact.
  • Competitive CTC: ₹4 – 6 LPA + performance incentives.
  • Opportunity for rapid growth into
    Tech Lead / Senior Engineer
    role as the platform scale

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