
Need candidates from Growing startups or Product based companies only
1. 6+ years experience in backend engineering
2. Minimum 2+ years hands-on experience with:
TypeScript
Express.js / Nest.js
3. Strong experience with MongoDB (or MySQL / PostgreSQL / DynamoDB)
4. Strong understanding of system design & scalable architecture
5. Hands-on experience in:
Event-driven architecture / Domain-driven design
MVC / Microservices
6. Strong in automated testing (especially integration tests)
7. Experience with CI/CD pipelines (GitHub Actions or similar)
8. Experience managing production systems
9. Solid understanding of performance, reliability, observability
10. Cloud experience (AWS preferred; GCP/Azure acceptable)
11. Strong coding standards — Clean Code, code reviews, refactoring

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Role : Nodejs developer
Please find below the JD for the Nodejs developer..
Role: NodeJs Developer
We are looking for a Node.js Developer responsible for managing the interchange of data between the server and the users. Your primary focus will be the development of all server-side logic, definition and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end. A basic understanding of front-end technologies is necessary as well. Responsibilities
• Collaborate with other members of the team, such as front-end developers
• Writing reusable, testable, and efficient code
• Design and implementation of low-latency, high-availability, and performant applications
• Implementation of security and data protection
• Integration of data storage solutions • Writing unit test cases • Documenting application changes and developing updates.
Skills
• Strong proficiency with JavaScript
• Experience of Node.js and frameworks available such as Express
• Practical experience with REST, PostgreSQL, WebSocket, MongoDB, Redis.
• Understanding the nature of asynchronous programming and its quirks and workarounds
• User authentication and authorization between multiple systems, servers, and environments
• Integration of multiple data sources and databases into one system
• Understanding differences between multiple delivery platforms, such as mobile vs. desktop, and optimizing output to match the specific platform • Creating database schemas that represent and support business processes
• Implementing automated testing platforms and unit tests
• Proficient understanding of code versioning tools, such as Git
• Good understanding of front-end technologies, such as HTML5, and CSS3
About the Role
We are looking for a highly skilled and experienced Senior React Native Developer with backend experience to join our team and lead the development of our cross-platform mobile application and its supporting backend services. You'll play a pivotal role in building, launching, and scaling a high-performance app that runs seamlessly on both iOS and Android — all from a single codebase — while also architecting and maintaining robust backend infrastructure in Node.js.
If you're passionate about mobile technologies, experienced in backend systems, and excited about building high-quality products from the ground up, we’d love to hear from you Responsibilities
- Lead the end-to-end development of a cross-platform mobile application using React Native.
- Build and maintain backend services and APIs using Node.js, ensuring scalability and performance.
- Collaborate with product managers, designers, and other engineers to deliver intuitive and seamless user experiences.
- Design and implement secure, reusable, and modular components (both frontend and backend).
- Optimize app and API performance across a wide range of devices and platforms.
- Ensure app and backend compliance with modern security, performance, and design standards.
- Set up and manage CI/CD pipelines for both frontend and backend (e.g., Fastlane, EAS, GitHub Actions).
- Integrate third-party APIs, services, analytics, push notifications, and more.
- Manage app store submissions and backend deployments.
- Mentor junior developers and contribute to establishing mobile and backend development best practices.
Requirements
Must-Have:
- 5+ years of experience in full-stack or mobile application development.
- 3+ years of hands-on experience with React Native.
- 2+ years of experience working with Node.js for backend development.
- Strong understanding of JavaScript (ES6+), TypeScript, and modern React architecture.
- Experience designing and integrating RESTful APIs, managing authentication, and handling network issues.
- Deep knowledge of mobile app development lifecycle for both iOS and Android.
- Familiarity with native build tools (Xcode, Android Studio).
- Solid grasp of mobile UI/UX principles and performance optimization techniques.
- Proficiency with Git, GitHub/GitLab, and agile workflows.
- Experience with features like push notifications, deep linking, in-app purchases, and analytics SDKs.
Preferred:
- Experience with Expo or EAS for managed workflows.
- Knowledge of CI/CD tools (Fastlane, Bitrise, GitHub Actions, etc.).
- Exposure to native modules (Objective-C/Swift and Java/Kotlin).
- Familiarity with automated testing frameworks (Jest, Detox, etc.).
- Experience publishing apps to the App Store and Google Play.
- Prior experience in startups or high-growth product environments.
- Working knowledge of databases (e.g., MongoDB, PostgreSQL) and cloud infrastructure (e.g., AWS, Firebase).
What We Offer
- Opportunity to lead and build a product end-to-end — frontend and backend.
- Work with a dynamic, high-performing team in a fast-paced, collaborative environment.
- Remote-first culture with flexible working hours.
- Competitive salary and equity options (if applicable).
- Dedicated learning and development budget to help you grow.
Backend Developer2-3 years
Node.js+MOngoDb Backend Developer
Develop,Debug Deploy..All Individually!
Product Based Companies
Individual Backend-COntributors
WOrked and Designed Scalable Micro Service Architecture
Worked and Deployed on AWS ,Google Cloud Functions
Socket Programming is added advantage
Experience in FIntech COmpanies preferred
Node.js Developer Responsibilities:
- Developing and maintaining server-side network components.
- Collaborating with front-end developers on the integration of elements.
- Designing customer-facing UI and back-end services for various business processes.
- Developing high-performance applications by writing testable, reusable, and efficient code.
- Implementing effective security protocols, data protection measures, and storage solutions.
- Running diagnostic tests, repairing defects, and providing technical support.
- Documenting Node.js processes, including database schemas, as well as preparing reports.
- Recommending and implementing improvements to processes and technologies.
- Keeping informed of advancements in the field of Node.js development.
Node.js Developer Requirements:
- At least two years of experience as a Node.js developer.
- Extensive knowledge of JavaScript, web stacks, libraries, and frameworks.
- Knowledge of front-end technologies such as HTML5 and CSS3.
- Superb interpersonal, communication, and collaboration skills.
- Exceptional analytical and problem-solving aptitude.
- Great organizational and time management skills.
- Availability to resolve urgent web application issues outside of business hours.
What you will be Doing
- You will abstract away complex data interactions with easy-to-use APIs that will power several mobile and web applications.
- You will also own, scale, and maintain the computational and storage infrastructure for the various micro-services and long-running jobs, designed and implemented by you and the team.
- We will look to you to make key decisions on the technology stack, architecture, networking, and security. We love working with bleeding-edge technology, especially if it improves the malleability, and simplicity of our deliverables.
What you need
- The ideal Backend Engineers are polyglots who are fluent in HTTP and core CS concepts such as algorithms, data structures, and programming paradigms, and always pick the right tools for the right job.
- They have a keen eye for common security vulnerabilities and how to act on them (example: DDOS attacks, SQL Injection etc.).
- They understand what it takes to work in a startup environment and know when to trade performance for simplicity.
- They fail fast, learn faster, and execute in time.
- Strong communication skills, get-things-done attitude, and empathy
- Strong sense of ownership, drive and obsessive attention to detail.
- Comfortable with iterative development practices and code reviews
- Previous experience as part of a product-oriented team is a plus
Technical Skillsets:
NodeJS + Javascript, GoLang, Typescript + Nodejs, Clojure/Haskell/F#/Scala (languages/environments)
Koa, Express, Play (frameworks)
Asynchronous Programming Frameworks (Akka, Nodejs, Tornado)
MongoDB, postgres, Bigtable, Dynamo (databases)
Apache Kafka, NATS, RabbitMQ, ZeroMQ (queues)
FunctionalProgramming, FRP (functional reactive)
microservices, multi-tenant, distributed-systems, distributed-computing, event-sourcing
Good to have Skillsets:
Clojure/Haskell/F#/Scala
Apache Kafka, NATS
FunctionalProgramming, FRP (functional reactive)
event-sourcing
Koa
Why you should consider this role seriously?
- We have an audacious vision of helping companies fight counterfeiting and managing their supply chain more efficiently
- We have built a product and solved problems for some of the largest brands in the country and tested platform at scale (With our tags present in over 50 Million products already). We have plans to grow 10x in the next 1 year
- Ownership of key problems. Fast-paced environment
- We are a well-balanced team of experienced entrepreneurs and are backed by top investors across India and the Silicon Valley (Venture Highway, Startup Buddy etc.)
- Competitive market salary
- Opportunity to work directly with the CEO, COO, CTO of the company
- A chance to interact with top-notch executives from multiple industries
- Open vacation policy (and we really mean it!)
- Open Pantry
- As a team, we love to travel :). An off-site every quarter
Planning to Apply? Consider this:
Make sure you go through this section very carefully before applying. Here are the most crucial aspects on which we evaluate on:
1: FIT: “We’re on a crusade for something greater than any one of us”!
We are a tight-knit team that works and plays together where ‘fit’ is the most important point that you need to keep in mind while evaluating us- we will be spending a majority of our time together, in office, on calls, even weekends (sometimes) so you’ll really need to assess whether this is the right place for YOU to be in. Are you able to relate to or feel passionate about the problems we’re solving?
2: INTENT: “You won’t just be working with us, you would be investing in us!”
‘Why’ do you want to work with us? Why an early stage startup? Why Original4Sure? We are an industrious team, working tirelessly to achieve our goals so the work hours will be long and with it will come with a steep learning curve. Joining an early stage startup also means you’ll be asked to take on new things with little guidance and you’ll have to figure stuff out on your own, and in doing so, help shape the future of the company. Does that sound scary, exciting, both?
3: CAPABILITY: “Get work done!”
As long as you are working as hard as you can and giving it your best all day, every day, we will get along just fine. No one ever built one of the most valuable businesses in the World without the core team having to make a few sacrifices along the journey. It could be lesser time spent with your family or loved ones or finding lesser time to do to watch TV shows! But that's a call you need to make.
What we are looking for:
Strong Coding and design skills
Good command over Data Structures & Algorithms
The ability to produce bug-free and production-grade code
Skills we consider: MYSQL, Python, Django, MongoDB, React.JS, Angular.JS, D3.Js, Node.js, Express.JS, InfluxDb, Redis, Kafka, Garafana, Elastic Search, Docker, AWS, Java, Spring Boot, C++
Key Deliverables:-
1. Develop a very high sense of ownership, the zeal to build scalable applications
2. Develop a deep understanding of the start-up ecosystem
Work with a performance-oriented team driven by ownership and open to experiments
3. Build a customer-facing technology product for global customers
Design and develop end to end applications with very high quality
What we have to offer:-
1. Work with a performance-oriented team driven by ownership and open to experiments
2. Learn to design systems for high accuracy, efficiency, and scalability
Focus on delivering quality work within deadlines.
3. Candid culture. No politics.
4. As a team, we value ownership, continuous learning, consistency, and discipline.
Job Description :
- 3 or more years of experience of server side web systems engineering and middleware in a project services or product engineering organisation
- Hands-on development experience using JavaScript on the Server Side with Node.js and associated frameworks
- Published sites/systems that are now online
- Self motivation and ability to manage your own time to get the job done at the high international quality levels we expect
- An engineering Degree in computer science or equivalent practical experience
- A solid understanding of networking, storage, operating/browser systems engineering as well as application/software systems performance optimisation and third party systems integration
- Hands on experience with Amazon Web Services
- Prior experience working within the Media, E-commerce, Telecommunications or similar large scale consumer facing industry
Node.js and frameworks available for it - Express, StrongLoop, etc
Understanding the nature of asynchronous programming and its quirks and workarounds
Integration of user-facing elements developed by front-end developers
front-end technologies - HTML5, and CSS3
Writing scalable, reusable, testable, and efficient code







