Senior Software Engineer

About the Role

SwitchKart is on a mission to make technology more accessible and more sustainable — we're in the business of recommerce, giving old smartphones a second life, cutting down e-waste, and extending the lifecycle of every device we touch.

We're looking for a Senior Full Stack Developer to help us build and scale the ecosystem of platforms powering this mission — from our procurement app to our retailer app, pricing engines, and warranty systems. You'll take ownership of complex features end-to-end, mentor junior engineers, and make architectural decisions that shape how we grow.

What You'll Do

• Own Features End-to-End: Design, build, and ship full stack features across our procurement, retailer, pricing, and warranty platforms — from database schema to UI polish.

• Drive Architecture: Make key technical decisions on system design, scalability, and code structure as our ecosystem of apps grows.

• Build AI-First: Design and build systems with AI at the core — not bolted on. Think about where AI can automate, assist, or enhance the products you're building from day one.

• Build Scalable Architecture: Build and monitor a highly performant, failure-resistant platform — we take pride in doing this with a small, high-ownership team.

• Automate and Integrate: Develop tools that automate our integration processes and build data pipelines across our app ecosystem.

• Foster Technical Excellence: Champion unit and integration testing and lead meaningful code reviews across the team.

• Prototype and Validate: Create interactive prototypes to prove out technical concepts and participate in pilots for new initiatives.

• Mentor the Team: Guide junior developers through code reviews, pairing, and technical direction.

• Report Upward: Provide regular updates to management on milestones, risks, issues, and mitigation plans.

• Collaborate Cross-Functionally: Work closely with product and design to translate requirements into robust technical solutions across multiple products.

What We're Looking For

Must Have

• 4+ years of full stack development experience

• Strong proficiency in React and Node.js

• Solid experience with PostgreSQL or MySQL — schema design, query optimisation

• Experience designing and scaling production systems

• Experience deploying and managing applications on a cloud platform (AWS/GCP or similar)

• Comfortable owning a feature from concept to deployment

• Strong debugging and problem-solving skills

Good to Have

• Experience mentoring or leading junior engineers

• Track record of driving scalability and time-to-market in past cloud architecture decisions

• Exposure to CI/CD pipelines

• Experience with Docker, NoSQL databases, or distributed caching

• Experience integrating third-party REST/SOAP APIs

• Experience in a fast-moving startup environment

Why SwitchKart

• Real ownership over architecture and technical direction.

• Access to the latest AI coding agents and tools — we invest in keeping our engineers on the cutting edge.

• Work on a genuinely differentiated business with measurable impact.

• Be part of a lean team where your decisions shape the product.

• Opportunity to mentor and grow the engineering team.

We are building VYXN.AI — a full AI content generation platform with a web application, Templates, Workflow / Space, dynamic credits/coins pricing, AI provider integrations, Telegram bot and Telegram Mini App.

The final goal is not a small prototype. The product should be built in clear stages:

1. Technical Foundation

2. First usable product release

3. Full commercial launch scope

The first stage should focus on building a stable technical base, not an over-engineered enterprise system.

Core product areas:

- Web AI content generation platform

- Text module with selectable AI text models

- Image / Design generation via external AI APIs

- Video generation via external AI APIs

- Templates section with visual examples, prompts and user photo upload

- Dynamic credits / coins pricing based on provider, model, quality, duration and generation parameters

- Generation history

- User dashboard

- Admin panel

- AI provider integration layer

- Basic working version of Workflow / Space with node-based UI

- Telegram bot

- Telegram Mini App

- Customer support bot

- Multilingual support

Important:

The platform should be built using existing AI APIs and providers, not by training custom AI models at the first stage.

We are looking for a Senior Full-Stack Developer / Tech Lead who can write code, structure the project technically, and help define the right staged development plan.

Responsibilities:

- Review the full project brief and propose a practical implementation plan

- Build or lead the core web application

- Implement frontend and backend logic

- Integrate external AI generation APIs

- Build user dashboard, admin panel, generation history and credits/coins logic

- Set up database, storage, deployment and basic monitoring

- Help structure AI provider integrations and dynamic pricing

- Help define Workflow / Space architecture

- Help define Telegram bot / Mini App integration approach

- Work with UI/UX designer, Telegram developer, workflow/frontend developer or other specialists if needed

Required skills:

- React.js / Next.js

- TypeScript

- Node.js

- PostgreSQL

- API integrations

- SaaS or web platform experience

- Backend architecture understanding

- Ability to work independently and communicate clearly

- Comfortable with fixed milestones and clear acceptance criteria

Nice to have:

- Redis / BullMQ / queues

- AI API integrations

- Image or video generation API experience

- React Flow or node-based workflow UI experience

- AWS / GCP / Cloudflare / S3-compatible storage

- Telegram Bot / Telegram Mini App experience

- Dynamic pricing, wallet, credits or usage-based billing experience

- Admin panels and support tools

Project format:

- Remote

- Contract or full-time possible

- Fixed milestones preferred for the first stages

- Code must be developed in our GitHub repository

- Deployment should be done through project-owned accounts

- Long-term cooperation possible if the first stage goes well

We are not looking for a large agency. We prefer a strong individual developer or a compact team that can move fast, communicate clearly and build a practical commercial product in stages.

Profile: MERN Stack Developer

📍 Location: Andheri East, Mumbai

🏤 Work Mode: 5 Days WFO

⏰ Experience: 2+ Years

(Only immediate joiners & candidates who have completed notice period)

What We're Looking For:

✅ 2+ years of MERN stack development experience

✅ MongoDB - database design and complex queries

✅ Express.js - server-side application development

✅ React.js - component-based UI development

✅ Node.js - backend JavaScript runtime

✅ Kafka - event streaming and messaging

✅ Docker - containerization and deployment

✅ Redis - caching and session management

✅ RESTful API design and integration

Must Have

1. Angular 13+

2. Understanding of Cloud architecture

3. Node.js + Expressjs +MongoDB (Localization Project)

Management skills required

1. Drive scrum meetings (Daily sync-up, Weekly planning meetings, Monthly meetings)

2. JIRA Understanding, including JIRA Reports, Releases

3. Code Review

4. Document preparation for any new feature/requirements using confluence

5. Track team timesheet reports

6. Communication with External team members  

A full stack developer job description for MERN stack developers centers on designing, developing, and maintaining robust web applications using MongoDB, Express.js, React, and Node.js as core technologies.

Responsibilities

• Develop and maintain scalable web applications using the MERN stack.
• Build interactive and responsive user interfaces with React.
• Implement server-side APIs and business logic using Node.js and Express.js.
• Design, model, and manage databases with MongoDB to ensure efficient data storage and retrieval.
• Integrate front-end with back-end systems and third-party services.
• Optimize applications for speed and scalability, troubleshoot and debug code, and ensure reliability.
• Collaborate with other developers, designers, and stakeholders in an agile environment to clarify requirements and deliver solutions.
• Implement security best practices and protect sensitive data.
• Participate in code reviews and mentor junior developers.

Requirements

• Proven experience with the MERN stack (MongoDB, Express.js, React, Node.js).
• Strong skills in JavaScript, HTML5, and CSS3.
• Familiarity with RESTful API design, version control systems (Git), and front-end frameworks like Bootstrap or Material-UI.
• Understanding of database design, schema management, and NoSQL principles.
• Problem-solving ability and communication skills.
• Bachelor's degree in computer science or related field (preferred).
• Experience working collaboratively in a team-oriented environment.

Key Skills

• JavaScript, React.js, Node.js, Express.js, MongoDB.
• HTML/CSS, RESTful APIs, Git.
• Familiarity with agile methodologies and UI/UX best practices.
• Testing, debugging, code optimization, and deployment.

Hello,

Is your career aspiration to build and scale up Technology products to reach millions of users? Then we are looking for you!

This is with reference to our conversation today. We are looking for great talent like you to help us build the world's largest and only cricket network! 

We are what you wish existed while you were growing up playing cricket! CricHeroes is the world’s largest Cricket Network with 10 million+ users. It helps cricketers score their matches, tournaments, get recognition and improve themselves with data. In the next few years, we are determined to reach 100 million+ grassroots cricketers all around the world. With 70+ District level associations, 20+ BCCI affiliated associations in India, and 30+ ICC-affiliated associations, the app is currently used around the world which includes quite a few test-playing countries as well. 

We are a team of 44 extraordinary members, who are striving to do some great quality work, empowered with freedom and responsibility, keeping in mind “What’s best for CricHeroes''. We live by the culture of openness and candor. To be able to say what you feel with the right intent helps us to grow as an individual and as a company.

Moving on from work-life balance we believe in work-life integration. For matured adults working with us, we don't find a reason to have control over their leaves and holidays. Thus, we have an “Unlimited Leave Policy” and it's working great for us! In addition, we also have flexible work hours and 5 workdays a week. Moreover for anything, we ensure we set the right Context over Control.

To help us grow and increase our Talent Density, we are looking for an All-Rounder Full Stack Developer, who is passionate about scaling up India's one-of-a-kind niche B2C platform and the pulse of the nation - Cricket!

Please find below the details of the job:

This might be a great opportunity for you if

• You are action and result-oriented highly driven person who aspires to be part of a team that is scaling up a successful B2C product.

• You are an analytical problem solver with strong Node.JS knowledge and a passion for teamwork and innovation

• You have hands-on experience in designing and developing applications and object-oriented analysis and design using common design patterns.

What are we looking for, in you?

• You are an ambitious problem solver who is constantly learning and updating yourself with the latest technology and an expert in technology development.

• In-depth knowledge of Node.js and used it for product development in a B2C fast-paced product company for 5-6 years

• Strong analytical skills and problem-solving aptitude

• Attention to details

• You believe in teamwork.

• You have a Bachelor's degree in Computer Science (or Equivalent).

• Mandatory Technical background: Node.js, Javascript, MySQL, MongoDB, Redis, Angular JS, React JS

• Preferable skills in AWS, Big Data, Analytics, Google Cloud.

What are we looking for, from you?

• You will write well-designed, testable, efficient code.

• You will ensure the code and designs are in compliance with specifications as developed.

• You will prepare and produce releases of software platforms and support continuous improvement by investigating alternatives and technologies.

• Work as part of a team developing applications and services using Agile development methods

• Contribute to team and organizational improvements in process and infrastructure

• Build customer-facing UI and back-end services

• Code, test and operate node.js based services

• Effectively use tools and ingenuity to identify and fix defects before they become a problem

• Good Stackoverflow profile is a big plus.

We are made in India by the passionate cricketers for the passionate cricketers of the world!

If you are interested, I will send you details to my team for further screening.

• 8+ years of industry work experience
• Proven experience as a Full Stack Developer or similar role
• 3+ years of web application development with JavaScript as full stack
• Full stack experience designing and building scalable applications from end-to-end 
• Excellent JavaScript / Typescript skills
• Strong proficiency in React (hooks knowledge is plus)
• Strong proficiency in Nodejs
• Good HTML5 / CSS3 skills with expertise on responsive web design 
• Must have Design and development experience in Micro services using NodeJS and TypeScript
• Experience with NoSQL databases such as MongoDB, mongoose, aggregation framework and Redis 
• Experience with Web sockets and related frameworks (e.g. Socket.IO) 
• Experience in using and developing GraphQL APIs
• Experience in performance tuning
• Knowledge of code versioning tools such as Git, Mercurial or SVN.
• Open minded to take up any challenge, research and provide solutions Great attention to detail

• Testing libraries – jest, testing-library is plus
• TDD / BDD experience is plus
• Experience with AWS, K8S, CI/CD is plus
• Familiar with SDLC methodologies like SCRUM, AGILE, Continuous Integration

• Design – Analyze, design & document the system / solution based on the business needs which is scalable, resilient and maintainable with low overhead for both client and server side
• Problem solving – Solve the challenges and problems faced by team by guiding and team with best practices
• Coordinate - Communicate system requirements to developers; explain system structure to them and provide assistance

• • Code Reviews – Perform code reviews 

• • Planning – Plan and assign tasks to team members

Job Description

• ​Be able to drive a team of around 4 developers
• Should be able to effectively lead from the front, integrating developers, analysts and QA
• Should be able to pair, and effectively mentor junior developers
• The ability to think innovatively and turn ambiguous problem spaces into clear solutions
• Be an inspiration for the team and a trusted partner to our customers

Requirements

• Familiar with PHP or Ruby or NodeJS. Strong experience in Laravel and/or ReactJS a plus
• Familiarity with the entire development -> prod flow a strong plus (our dev owns the DevOps)
• Familiarity with performance tuning a web stack a strong plus
• Comfortable working in an Agile highly dynamic start-up environment
• Demonstrate leadership skill and be accustomed to driving results in a collaborative, cross-functional environment