About AiSensy AiSensy is a WhatsApp based Marketing & Engagement platform helping businesses like Adani, Delhi Transport Corporation, Yakult, Godrej, Aditya Birla Hindalco., Wipro, Asian Paints, India Today Group Skullcandy, Vivo, Physicswallah, Cosco grow their revenues via WhatsApp.
Enabling 210,000+ Businesses with WhatsApp Engagement & Marketing 800 Crores + WhatsApp Messages done between Businesses and Users via AiSensy per year Working with top brands like Delhi Transport Corporation, Vivo, Physicswallah & more High Impact as Businesses drive 25-80% Revenues using AiSensy Platform Mission-Driven and Growth Stage Startup backed by Marsshot.vc, Bluelotus.vc & 50+ Angel Investors
We’re looking for a Tech Lead with deep hands-on experience in the MERN Stack who can lead a team of engineers, architect robust systems, and build high-performing web applications. This is a high-ownership, high-impact role where you'll drive innovation, scalability, and performance across our tech stack.
You’ll work directly with leadership, product, and design teams to create experiences that reach millions. If you're a tech-savvy problem solver who thrives in fast-paced environments, this role is for you.
Key Responsibilities Technical Leadership: Lead, mentor, and inspire a team of full stack developers; foster a high-performance, growth-oriented environment.
Architecture Ownership: Design scalable, secure, and maintainable backend and frontend architecture to support real-time, large-scale applications.
Full Stack Execution: Develop features end-to-end using the MERN stack — from intuitive user interfaces in React.js to robust APIs in Node.js.
Code Quality & Reviews: Uphold engineering best practices by conducting thorough code reviews and improving codebase maintainability.
Collaboration: Work cross-functionally with Product, Design, DevOps, and QA teams to define, build, and ship impactful features.
Performance & Scalability: Optimize web performance, server efficiency, and database interactions for speed and reliability.
CI/CD & DevOps: Participate in infrastructure decisions and deployments with Docker, Kubernetes, and cloud tools (AWS preferred).
Innovation: Evaluate new tools, frameworks, and processes to constantly raise the bar on development quality and team productivity.
5+ years of experience in software development with at least 2+ years in a leadership or senior developer role.
Strong proficiency with the MERN Stack: MongoDB, Express.js, React.js, and Node.js.
Excellent command over JavaScript, TypeScript, and modern frontend libraries (e.g., Redux, Zustand).
Solid understanding of RESTful APIs, asynchronous programming, and modern software architecture.
Proven experience designing and deploying scalable systems on cloud platforms like AWS or GCP.
Strong problem-solving, debugging, and analytical skills.
Hands-on experience with version control systems (Git) and CI/CD tools.
Excellent communication skills and the ability to lead by example.
Exposure to WebSockets, event-driven systems, or messaging queues.
Experience with Docker, Kubernetes, and monitoring tools (e.g., Prometheus, Grafana).
Prior experience in a SaaS or B2B product environment.
Familiarity with testing tools such as Jest, Mocha, or Cypress.
Lead with Impact: Own major components of a product used by 100K+ businesses.
Career Growth: Fast-track your career through real leadership experience and meaningful projects.
Dynamic Culture: Work in a transparent, fast-moving, and innovation-first environment.
Build the Future: Shape how modern businesses interact with customers on WhatsApp at scale.
Excited to lead innovation in a product that powers revenue for thousands of brands?
Apply now and help us build the future of customer engagement at AiSensy.
