Senior Node.JS Developer

Zolvit is seeking a highly motivated and experienced Backend Software Engineer to join our growing engineering team. As a key member of the team, you will play a crucial role in designing, developing, and maintaining high-performance, scalable backend systems that power our core platform. You will have the opportunity to work on challenging problems at scale and contribute to a product that will potentially power millions of businesses in India.

Responsibilities:

• Design, develop, and deploy robust and scalable backend services using Ruby on Rails, NodeJS, and Java.
• Contribute to the evolution of our microservices architecture, ensuring high availability, fault tolerance, and performance.
• Write clean, efficient, and well-documented code, adhering to best practices and coding standards.
• Collaborate with cross-functional teams, including product, frontend, and QA, to deliver high-quality products.
• Participate in code reviews, design discussions, and knowledge sharing sessions.
• Implement and maintain CI/CD pipelines, promoting automation and continuous delivery.
• Monitor and optimize the performance of backend systems, proactively identifying and resolving issues.
• Champion a quality-driven development approach, including unit testing, integration testing, and performance testing.
• Stay up-to-date with the latest technologies and trends in backend development.

Qualifications:

• Bachelor's degree in Computer Science or a related field, or equivalent practical experience.
• Proven experience in backend software engineering, building and scaling distributed systems.
• Strong proficiency in Node.js
• Solid understanding of object-oriented programming principles and design patterns.
• Hands-on experience designing and implementing microservices at scale.
• Experience with relational and/or NoSQL databases like MySQL, PostgreSQL, MongoDB, ElasticSearch.
• Familiarity with containerization technologies like Docker and orchestration platforms like Kubernetes is a plus.
• Familiarity with AWS cloud services is a plus
• Experience with CI/CD pipelines and tools (e.g., Jenkins, GitLab CI, CircleCI).
• A strong understanding of computer science fundamentals with excellent problem-solving and analytical skills.
• A proactive and collaborative approach to work.
• A passion for building high-quality software and a commitment to continuous improvement.
• Experience working in an Agile environment.

Bonus Points:

• Experience with AWS, Redis, Kafka.
• Exposure to building and deploying ML models in the cloud.
• Experience working in a fast-paced, high-growth environment.

Key Responsibilities: 

• Rewrite existing APIs in NodeJS. 
• Remodel the APIs into Micro services-based architecture. 
• Implement a caching layer wherever possible. 
• Optimize the API for high performance and scalability. 
• Write unit tests for API Testing.
• Automate the code testing and deployment process.

Skills Required: 

• At least 2 years of experience developing Backends using NodeJS — should be well versed with its asynchronous nature & event loop, and know its quirks and workarounds. 
• Excellent hands-on experience using MySQL or any other SQL Database. 
• Good knowledge of MongoDB or any other NoSQL Database. 
• Good knowledge of Redis, its data types, and their use cases. 
• Experience with graph-based databases like GraphQL and Neo4j. 
• Experience developing and deploying REST APIs. 
• Good knowledge of Unit Testing and available Test Frameworks. 
• Good understanding of advanced JS libraries and frameworks. 
• Experience with Web sockets, Service Workers, and Web Push Notifications. 
• Familiar with NodeJS profiling tools. 
• Proficient understanding of code versioning tools such as Git. 
• Good knowledge of creating and maintaining DevOps infrastructure on cloud platforms. 
• Should be a fast learner and a go-getter — without any fear of trying out new things Preferences. 
• Experience building a large scale social or location-based app.

Our client is looking out for an Associate Architect who has strong experience in to Technology

You will be involving in design, coding &scaling the product.

Collaborate with cross functional teams to solve complex problems.
You will be designing large scale distributed system.

Requirements:

8+ years of hands-on experience in developing, designing & scaling complex systems

Programming experience in Java, spring, Hibernate and MongoDb, micro services

Personality fit 

Looking to hire a Backend developer, who wakes up every day with the zeal of learning something new - a mind that is always curious. Not only this, he should be proud to have a good experience on algorithms and understand his technology at the atomic level.

Preliminary requirements for the role

1. Should understand the architecture of Node Js language, and must have had at least 1 year of solid experience in writing robust code in this language.
2. Should be well versed with basic algorithms on ( array, Linked list, stack, queue)- Yes, we do ask questions associated with time and space complexity for the above-mentioned algorithms
3. Thorough understanding of MySQL, in that, creating all types of joins ( inner, outer, left, and right) on multiple tables, views, and triggers are a piece of cake for you.
4. Further, you should have a decent understanding of database designs so that you can make quick decisions about normalization, inclusion/exclusion of foreign keys, etc
5. Should have a decent understanding of code repository tool such as GitHub
6. Should be well versed with the basics of AWS ( understanding of cloud architecture would be a plus)
7. Should be aware of the commonly used encryption techniques such as JWT, API encryption, Token management, etc
8. Exposure to working in E-commerce related applications as well as in a startup environment would be an add on. 

• Proficient in Node with Express.Js as a framework.
• Must have hands-on experience in Databases. (MongoDB)
• Proficient understanding of code versioning tools, such as Git
• Hands-on experience in building microservices and processes.
• Building reusable code and libraries for future use