MERN Stack Developer

Job Title : Full Stack Developer (React.js / Next.js)

Experience : 3+ Years

Location : Gurugram Sector 43

Working Days : 5 Days WFO

Employment Type : Full-Time

Job Summary :

We are looking for a passionate Full Stack Developer with strong expertise in React.js and Next.js to build modern, high-performance web applications. This is a frontend-focused role that also requires experience with backend development, APIs, and databases.

Mandatory Skills :

React.js, Next.js (App Router & Server Components), JavaScript (ES6+), TypeScript, REST APIs, SSR/SSG/ISR, PostgreSQL/MySQL, Git, State Management (Redux/Zustand/Context API), HTML5, CSS3/Tailwind CSS

Key Responsibilities :

• Develop and maintain web applications using React.js and Next.js.
• Implement SSR, SSG, and ISR for performance and SEO optimization.
• Build reusable and responsive UI components using Tailwind CSS or similar frameworks.
• Integrate frontend applications with backend APIs.
• Work with PostgreSQL or MySQL databases.
• Manage application state using Redux, Zustand, or Context API.
• Write clean, scalable, and well-documented code.
• Participate in code reviews and testing activities.

Required Skills :

• 3+ years of experience in web development.
• Strong knowledge of JavaScript (ES6+), TypeScript, React.js, and Next.js.
• Experience with Next.js App Router and Server Components.
• Good understanding of REST APIs.
• Experience with PostgreSQL or MySQL.
• Proficiency in Git and modern package managers (npm/yarn/pnpm).

Good to Have :

• Experience with PHP/Laravel (preferred) or Node.js.
• Knowledge of JWT, OAuth, or Laravel Sanctum.
• Experience with Tailwind CSS.
• Familiarity with Docker, Vercel, and CI/CD pipelines.

🧭 Tech Lead (Backend / Fullstack | 7–10 Years)

Location: Bangalore (On-Site, Hybrid)

Company Type: Public-Listed Product Company

We’re Building a “Top 1% Engineering Org”

We’re building a high-talent-density, AI-first R&D organization from scratch — inside a publicly listed company undergoing a full-scale transformation.

Think:

→ Rewriting legacy systems into AI-native architectures

→ Embedding LLMs + Agentic AI into core workflows

→ Reimagining platforms, infra, and data systems for the next decade

This is the kind of shift you’d expect from Google, Microsoft, or Meta —

Except you get to build it from day 0 → scale it globally.

About the Role / Team

We are building a next-generation AI-first R&D organization in Bengaluru, focused on solving complex problems across LLMs, Agentic AI systems, distributed computing, and enterprise-scale architectures.

This initiative is part of a publicly listed global company investing heavily in AI-driven transformation, re-architecting its platforms into intelligent, autonomous systems powered by large language models, workflows, and decision engines.

You will be working on:

• Agentic AI systems & LLM-powered workflows
• Distributed, scalable backend systems
• Enterprise-grade AI platforms
• Automation-first engineering environments

🚀 The Mandate

Lead execution of mission-critical systems while staying hands-on — bridging architecture and delivery.

🧩 What You’ll Do

• Own end-to-end delivery of complex engineering initiatives (0→1, 1→N)
• Design systems across backend + frontend (if fullstack)
• Translate ambiguous problems into structured technical solutions
• Drive engineering best practices, code quality, and velocity
• Mentor engineers and elevate team performance
• Collaborate with stakeholders on roadmap and execution strategy

🧠 What We’re Looking For

• Strong experience in backend systems + optional frontend frameworks
• Proven ability to lead projects and deliver at scale
• Solid understanding of system design and architecture patterns
• Ability to balance speed vs quality vs scalability trade-offs
• Strong communication and leadership without authority
• Strong coding skills in Python / Java / Go / Node.js
• Solid understanding of data structures, system design basics, and backend architecture
• Experience building scalable APIs and services
• Familiarity or curiosity around AI/LLMs, async systems, or event-driven design
• Strong debugging, problem-solving, and ownership mindset

Nice to Have

• Experience integrating LLMs, vector databases, or AI pipelines
• Contributions to architecture at scale
• Experience with Agentic AI / LLM orchestration frameworks
• Background in product engineering or platform companies
• Exposure to global-scale systems (millions of users / high throughput)

🔥 What Sets You Apart

• Experience leading platform builds or major system rewrites
• Exposure to AI systems, LLM integrations, or intelligent workflows
• Built platforms used by millions of users / high-throughput systems
• Experience with event-driven systems, stream processing, or infra platforms
• Prior work on AI/ML platforms, model serving, or intelligent systems

Background: We Commonly See (But Not Limited To)

• Our team often includes engineers from top-tier institutions and strong research or product company or DeepTech or AI Product backgrounds, including:
• Leading engineering schools in India and globally
• Engineers with experience in top product companies, AI startups, or research-driven environments
• That said, we care far more about demonstrated ability, depth, and impact than pedigree alone.

Position -  Full stack Developer

Location - Navi Mumbai

Freshers  0-3 yrs

Who are we

Based out of IIT Bombay, HaystackAnalytics is a HealthTech company creating clinical genomics products, which enable diagnostic labs and hospitals to offer accurate and personalized diagnostics. Supported by India's most respected science agencies (DST, BIRAC, DBT), we created and launched a portfolio of products to offer genomics in infectious diseases. Our genomics based diagnostic solution for Tuberculosis was recognized as one of top innovations supported by BIRAC in the past 10 years, and was launched by the Prime Minister of India in the BIRAC Showcase event in Delhi, 2022.

Objectives of this Role:

• Work across the full stack, building highly scalable distributed solutions that enable positive user experiences and measurable business growth
• Ideate and develop new product features in collaboration with domain experts in healthcare and genomics 
• Develop state of the art enterprise standard front-end and backend services
• Develop cloud platform services based on container orchestration platform 
• Continuously embrace automation for repetitive tasks
• Ensure application performance, uptime, and scale, maintaining high standards of code quality by using clean coding principles and solid design patterns 
• Build robust tech modules that are Unit Testable, Automating recurring tasks and processes  
• Engage effectively with team members and collaborate to upskill and unblock each other

Frontend Skills 

• HTML 5  
• CSS framework ( LESS/ SASS / Tailwind ) 
• Es6 / Typescript 
• Electron app /Tauri)
• Component library ( Bootstrap , material UI, Lit ) 
• Responsive web layout ( Flex layout , Grid layout ) 
• Package manager --> yarn / npm / turbo
• Build tools - > (Vite/Webpack/Parcel)
• Frameworks -- > React with Redux of Mobx / Next JS
• Design patterns 
• Testing - JEST / MOCHA / JASMINE / Cypress
• Functional Programming concepts (Good to have)
• Scripting ( powershell , bash , python )

Backend Skills 

• Nodejs - Express / NEST JS 
• Python / Rust
• REST API 
• SOLID Design Principles
• Database (postgresql / mysql / redis / cassandra / mongodb ) 
• Caching ( Redis ) 
• Container Technology ( Docker / Kubernetes )  
• Cloud ( azure , aws , openshift, google cloud ) 
• Version Control - GIT 
• GITOPS 
• Automation ( terraform , ansible ) 

Cloud Skills 

• Object storage
• VPC concepts 
• Containerize Deployment
• Serverless architecture 

 Other Skills 

• Innovation and thought leadership
• UI - UX design skills  
• Interest in in learning new tools, languages, workflows, and philosophies to grow
• Communication 

To know more about us- https://haystackanalytics.in/

Full Stack Developers : (5 persons required)

• Should have excellent working technical skills in NodeJS, React JS, PreactJS and Mongo DB + AWS
• Must have done projects either at work or in college using these technical skills
• Should have sound logical and problem solving capabilities.
• Must have good communication and articulation skills in English.
• Overall should have a good go-getter attitude and willing to work in a Start-up environment.

What you’ll do - 

1. Design and implementation of the overall web architecture.
2. Design and deployment of database.
3. Ensuring the entire stack is designed and built for speed and scalability.
4. Design and construction of our REST API
5. Integrating our front-end UI with the constructed API
6. Design and implementation of continuous integration and deployment.
7. Work remotely with our global clients and teams across the US

What you should have - 

1. Should have 5+ years of experience expertise in developing applications using any of the frameworks and programming languages
2. 5-8 years’ experience Fluent in CSS (Foundation or Bootstrap), JavaScript and HTML, with an understanding of CSS, React.JS
3. Experience working with server technologies Node.js
4. Experience in API design and development.
5. Understanding of SQL / NoSQL databases MongoDB.
6. Strong knowledge of data structures, system design, and algorithms.
7. Great organizational and time-management skills.
8. Great interpersonal and communication skills.

Job Responsibilities

• Manage a team of talented engineers and oversee daily execution
• Work with product managers in planning sprints and task estimation
• Remove roadblocks for teams and increase delivery velocity
• Provide technical leadership to the team
• Be Technical SME in client meetings
• Be a stickler for code quality, test coverage
• Coach and grow engineering team

To be successful in this role, you need to have/be:

• Proven track record in managing engineering teams and delivering quality products.
• Experience in Ruby on Rails, React JS tech stacks
• Experience in building high performance web applications/APIs
• Top notch analytical/problem solving/debugging skills
• Should have proven ability to build, lead and develop a team
• Strong communication skills with the ability to clearly articulate needs as well as provide the team with a clear overview of the priorities
• Excellent verbal, analytical, organizational, and written skills

We're looking for a Full Stack developer who will take a key role on our team. Our Full Stack developer must have knowledge in all stages of software development.

Requirements:

• Design overall architecture of the web application.
• Maintain quality and ensure responsiveness of applications.
• Collaborate with the rest of the engineering team to design and launch new features.
• Maintain code integrity and organisation.
• Experience working with graphic designers and converting designs to visual elements.
• Understanding and implementation of security and data protection.
• Highly experienced with back-end programming with NodeJS, you can easily design and integrate the REST APIs with front end.
• Well versed with JavaScript (frameworks such as ReactJS).
• Development experience for both mobile and desktop.
• Experience with cloud message APIs and usage of push notifications.
• Knowledge of code versioning tools such as Git.
• Knowledge about Firebase & GoLang is an added advantage.