
- Design patterns- socket communication/ micro services architecture
- Caching - REDIS MEMCACHED etc
- Database - MONGO, SQL etc. min 2yrs experience with these.
- Features created for large concurrent requests.
- Node Js, Go lang any asynchronous programming language min 2 yrs exp with any one of them.
- Message Queues - RABBIT MQ, Kafka etc.

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Job Title : Senior Node.js Developer (SDE 2)
Experience : 5+ Years
Location : Bengaluru (Whitefield)
Work Mode : Hybrid (3 Days WFO)
Openings : 2
Notice Period : Immediate–20 Days Preferred
Role Overview :
We are looking for an experienced Senior Node.js Developer (SDE 2) professional with strong expertise in building scalable backend applications, microservices, and distributed systems in Agile environments.
Mandatory Keywords :
Node.js, JavaScript, TypeScript, GraphQL, Microservices, Cloud, REST APIs, Docker, Kubernetes, Redis, System Design.
Key Responsibilities :
• Design, develop, and deploy scalable backend systems using Node.js & TypeScript.
• Build REST APIs and GraphQL services.
• Develop secure, reusable, and high-performance applications.
• Work on microservices, cloud platforms, and production support.
• Follow best practices including TDD, testing, and DevOps processes.
• Mentor team members and contribute to technical excellence.
Mandatory Skills :
• 5+ years of software development experience.
• Strong hands-on experience in Node.js, JavaScript, TypeScript.
• Experience with Express.js/Koa/Sails.js.
• GraphQL, REST APIs, Microservices
• AWS/Azure/GCP Cloud
• Docker, Kubernetes, Redis
• Strong understanding of distributed systems, Git, and DevOps.
Good to Have :
Kafka, RabbitMQ, Apollo Federation, New Relic, Datadog, Splunk, React.js/Next.js, Jest/Mocha/Cucumber
Interview Process :
- L1 – Technical
- L2 – Coding
- L3 – System Design (HLD + LLD)
As a Senior Backend & Infrastructure Engineer, you will take ownership of backend systems and cloud infrastructure. You’ll work closely with our CTO and cross-functional teams (hardware, AI, frontend) to design scalable, fault- tolerant architectures and ensure reliable deployment pipelines.
- What You’ll Do :
- Backend Development: Maintain and evolve our Node.js (TypeScript) and Python backend services with a focus on performance and scalability.
- Cloud Infrastructure: Manage our infrastructure on GCP and Firebase (Auth, Firestore, Storage, Functions, AppEngine, PubSub, Cloud Tasks).
- Database Management: Handle Firestore and other NoSQL DBs. Lead database schema design and migration strategies.
- Pipelines & Automation: Build robust real-time and batch data pipelines. Automate CI/CD and testing for backend and frontend services.
- Monitoring & Uptime: Deploy tools for observability (logging, alerts, debugging). Ensure 99.9% uptime of critical services.
- Dev Environments: Set up and manage developer and staging environments across teams.
- Quality & Security: Drive code reviews, implement backend best practices, and enforce security standards.
- Collaboration: Partner with other engineers (AI, frontend, hardware) to integrate backend capabilities seamlessly into our global system.
Must-Haves :
- 5+ years of experience in backend development and cloud infrastructure.
- Strong expertise in Node.js (TypeScript) and/or Python.
- Advanced skills in NoSQL databases (Firestore, MongoDB, DynamoDB...).
- Deep understanding of cloud platforms, preferably GCP and Firebase.
- Hands-on experience with CI/CD, DevOps tools, and automation.
- Solid knowledge of distributed systems and performance tuning.
- Experience setting up and managing development & staging environments.
• Proficiency in English and remote communication.
Good to have :
- Event-driven architecture experience (e.g., Pub/Sub, MQTT).
- Familiarity with observability tools (Prometheus, Grafana, Google Monitoring).
- Previous work on large-scale SaaS products.
- Knowledge of telecommunication protocols (MQTT, WebSockets, SNMP).
- Experience with edge computing on Nvidia Jetson devices.
What We Offer :
- Competitive salary for the Indian market (depending on experience).
- Remote-first culture with async-friendly communication.
- Autonomy and responsibility from day one.
- A modern stack and a fast-moving team working on cutting-edge AI and cloud infrastructure.
- A mission-driven company tackling real-world environmental challenges.
- Experience in Node.js Frameworks
- Hands-on experience with MongoDB
- Strong proficiency with JavaScript, Socket IO, ExpressJS & SailsJS
- Experience working with third-party developer tools, including documentation, APIs, and SDKs
- Good Grasp of Asynchronous Programming and Its Workarounds
- Database Schema design for Business Processes
- Working Knowledge of JWT based passport Authentication
- Can Write and Refactor Efficient Codes
- Experience in Implementing Data Protection
- Must have demonstrated the ability to deliver high-quality products on time
- Knowledge of GIT, SVN technology
Backend Development - Intern
Converts into a full time position based on performance
A Backend Developer, for an early-stage Analytics startup who can help us translate Product specs into a high-performing and scalable product across platforms. Also help in improving functionality of product. End goal is to achieve product-market objectives
The candidate will have rich learning into what goes into developing, scaling a product from scratch. A chance to grow into a Backend Development Owner in medium-long term
Responsibilities
-
Own Back End Development closely with Product Owner
-
Design, implement and maintain product modules/sub-systems in your scope
-
Perform bug verification, release testing and support for assigned products.
-
Conduct unit testing and integration testing.
-
Make sure the delivered product matches the business requirements.
Expectations from candidate
-
Ability: Good at logical thinking, problem solving
-
Inclination: Curious and strong willingness to learn from problems, write good code
-
Knowledge: Basics of Back End Development (Some academic degree/certification
or Prior experience/Projects preferred)
-
Languages/Tool/Framework: Python, MongoDB, GraphQL, GoLang
-
Interest in product focused work in a fast-moving start-up environment
-
Attitude: We are looking for a person with an owner mindset who can partner with
us in building our product with a lot of commitment. We like people who are curious problem solvers and are interested in learning with us and working hard.
What we offer
-
Great culture focused on outcomes through learning and experimentation
-
Mentoring by experienced professionals from pedigreed backgrounds (IIT/IIMs)
-
Growth, ownership, and flexibility to achieve your goals.
About us:-
Zupee is India's hottest Real Money Gaming Platform
With in 1 yr of start, we just had an initial team of around 30 people, these 30 were successful to bring 10 Million+ users and an overall consumer spend of 1.5 Billion USD on the platform, the journey which needed years to be covered was covered with in 1yr. As we speak today, Zupee has been profitable for almost an year now and has ended the year 2020 with a team size of 70+ and over all growth rate was mapped around 20X.
Our user base has significantly gone up and we have invested highly in technology and have got best in class tech stack, it's time to add the backend developers who can help us scale up the platform so that we can drive profitable growth and become the market leader in our space.
Backend Developer :- (3 - 12 yrs)
What You'll Need?
- Knowledge of languages (JavaScript, Python) and frameworks/systems (nodejs)
- Strong analytical skills and aptitude
- Understanding of data architecture, software design and best coding practices
- Understanding of TCP/IP networking concepts and technologies
- Ability to learn new languages and technologies
- Experience with databases (both SQL and NoSQL)
- Familiarity with Agile development methodologies
- Working knowledge of Linux
Integration of user-facing elements developed by front-end developers with server side logic
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, may include databases, key-value stores, blob stores, etc
Integrating in-house product with third party applications and creating ready connectors
Build microservices with modular design
Benchmarking applications in terms of number of concurrent users, number of requests per second and similar parameters
Documenting and updating APIs for customers systematically
Required Skills:
Programming Language: NodeJS
Capabilities: REST APIs, WebSockets, Express
Databases: MongoDB, Redis, ElasticSearch
Tools: GIT, VSCode
__________________________________________________________________
**ONLY LOOKING FOR CANDIDATES WHO LIVE IN MUMBAI
Role Summary: Back-end Developer who would contribute towards building a highly flexible and scalable Back- end by bringing deep core technology expertise.
Job Description:
- Develop modules keeping micro services architecture philosophies in check. - Implement and/or oversee implementation of different modules as part of an integrated development team. - Drive evolution of application performance. - Ensure project scalability by having good project architecture
Skill Requirements:
- Strong Node.js. - Strong database technology skillsets, namely MongoDB, MySQL
- Should have experience of using Rabbit MQ.
- Python (Django) skills are a plus. - A skilled and pragmatic approach.
- Experience with user-centred design, test-driven development, iterative/incremental and agile practices. - Experience with AWS deployment a definite plus.
Individual applying to the role should ideally have the following attributes.
-Passionate about back-end Development and continually follow the platform & innovations
-Strong and innovative approach to problem solving and finding solutions
- Excellent communicator (written and verbal, formal and informal)
- Flexible and proactive/self-motivated working style with strong personal ownership of problem resolution
- Ability to multi-task under pressure and work independently with minimal supervision.
- Ability to prioritize when under pressure.










