
Sr. Backend Software Engineer
at A leading company who makes multilingual conversational chat
- A solid grounding in Computer Science fundamentals (based on a BE/BTech or MS in Information
Technologies/Computer Science)
- Strong proficiency with JavaScript and knowledge of Node.js and frameworks.
- Strong hands on MongoDB and ability to write aggregation queries.
- Basic understanding of front-end technologies, such as HTML5, and CSS3.
- Hands-on on code versioning tools, such as Git, Redis, AWS, Sockets

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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 3 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.
As a Node.js Developer at Primathon Technology, you will be responsible for designing, developing, and maintaining server-side applications using Node.js. You will collaborate with cross-functional teams to implement new features, optimize existing functionality, and ensure the best possible performance, security, and user experience. Key Responsibilities:
1. Develop and maintain server-side applications using Node.js, ensuring optimal performance and scalability.
2. Collaborate with front-end developers, designers, and other stakeholders to implement new features and enhance existing functionality.
3. Write clean, maintainable, and efficient code while adhering to coding standards and best practices.
4. Participate in code reviews to ensure code quality and consistency within the development team.
5. Troubleshoot and debug issues across the application stack, identifying and resolving performance bottlenecks and other challenges. 6. Implement security and data protection measures, ensuring the application's compliance with industry standards.
7. Optimize applications for maximum speed and scalability. Qualifications and Skills:
1. Bachelor's degree in Computer Science, Engineering, or a related field.
2. Minimum of 2 years of professional experience as a Node.js Developer
. 3. Proficient in server-side JavaScript programming using Node.js.
4. Strong understanding of asynchronous programming, including Promises and async/await.
5. Experience with RESTful API development and integration.
6. Familiarity with front-end technologies such as HTML, CSS, and JavaScript frameworks (e.g., React, Angular, Vue) is a plus.
7. Knowledge of database systems (e.g., MongoDB, MySQL, PostgreSQL) and data modeling.
8. Experience with version control systems (e.g., Git) and collaborative development workflows.
9. Good understanding of software development lifecycle (SDLC) and agile methodologies.
10. Strong problem-solving skills and attention to detail
About Quantela
We are a technology company that offers outcomes business models. We empower our customers with the right digital infrastructure to deliver greater economic, social, and environmental outcomes for their constituents.
When the company was founded in 2015, we specialized in smart cities technology alone. Today, working with cities and towns; utilities, and public venues, our team of 280+ experts offer a vast array of outcomes business models through technologies like digital advertising, smart lighting, smart traffic, and digitized citizen services.
We pride ourselves on our agility, innovation, and passion to use technology for a higher purpose. Unlike other technology companies, we tailor our offerings (what we can digitize) and the business model (how we partner with our customer to deliver that digitization) to drive measurable impact where our customers need it most. Over the last several months alone, we have served customers to deliver outcomes like increased medical response times to save lives; reduced traffic congestion to keep cities moving and created new revenue streams to tackle societal issues like homelessness.
We are headquartered in Billerica, Massachusetts in the United States with offices across Europe, and Asia.
The company has been recognized with the World Economic Forum’s ‘Technology Pioneers’ award in 2019 and CRN’s IoT Innovation Award in 2020.
For latest news and updates please visit us at www.quantela.com
Overview of the Role
Collaborate with cross-functional teams to define, design and build performant modern web applications and services. Build high quality web applications and services by writing clean and modular code
Must have Skills
- 10+ years of experience in leading teams and delivering product, write unit and integration tests to ensure robustness and reliability of web applications and services.
- Measure and improve performance of microservices.
- Catalyze growth within the team through code reviews and pair programming to maintain high development standards Investigate operational issues to find the root cause and propose improvements Design, build, and maintain APIs, services, and systems across Stripe’s engineering teams.
- Expert level of experience in design and development of Web Applications, highly scalable distributed systems.
- Should have experience in development skills using latest technologies including NodeJS, Microservices, Elastic search, Timescale DB, Kafka, Redis, etc.
- Should have exposure in NoSQL and SQL development.
- Comprehensive knowledge of physical and logical data modelling, performance tuning.
- Should possess excellent communication, presentation, and interpersonal skills.
- Ability to work collaboratively and productively with globally dispersed teams
- Build high performance teams and Coach team for successful career growth
- Experience working with relational and non-relational databases, query optimization, and designing schema
Desired Background
Bachelors/Masters degree in Computer Science or Computer Applications
Overview of the role
As a Node Developer you will be collaborate with cross-functional teams to define, design and build performant modern web applications and services. Build high-quality web applications and services by writing clean and modular code.
Must have skills
- Overall 3-5 Years of experience in writing unit and integration tests to ensure the robustness and reliability of web applications and services.
- Measure and improve the performance of microservices. Catalyse growth within the team through code reviews and pair programming to maintain high development standards
- Investigate operational issues to find the root cause and propose improvements Design, build, and maintain APIs, services, and systems across Stripe’s engineering teams.
- Expert level of experience in the design and development of Web Applications, and highly scalable distributed systems.
- Should have experience in development skills using the latest technologies including NodeJS(fastify framework), Microservices, PostgreSQL, Redis, etc. Should have exposure to NoSQL and SQL development.
- Comprehensive knowledge of physical and logical data modeling, and performance tuning.
- Should possess excellent communication, presentation, and interpersonal skills.
- Ability to work collaboratively and productively with globally dispersed teams.
- Build high-performance teams and Coach teams for successful career growth.
- Experience working with relational and non-relational databases, query optimization, and designing schema
Desired Background
Bachelors/Masters Degree in Computer Science, Information Technology
- Full stack development on cutting edge technology in Fintech domain.
- Ownership of complete backend code.
You should Have :
- Server Side languages knowledge: Node.js and express.js is the first choice, Python, Java
- At least 3+ years of server-side programming experience. We prefer ability over experience
- Solid experience working with databases, especially relational DB.
- Solid experience with version control (Git or Bitbucket or SVN).
- B.E. in Computer Science or Graduate/PG degree in Computer Science (this is optional, as we are more interested in your abilities and experience over a paper degree).
- Any experience working with real time projects in backend with node.js and express.js
Desired candidates must have 2-7 years experience as NodeJs Developer. If the candidate is not able to relocate to Gurgaon then we can also provide permanent Work from home for this position.
Roles and responsibilities:
- Responsible for understanding functional and business requirements and translate them into effective code
- Provide support till deployment of code into production.
- Ownership for ensuring code optimization, problem diagnosis, and on-time delivery
- Implement solutions as per the pre-defined framework /guidelines and adherence to processes
- Finding an optimal solution for the problem statement
- Conduct peer code review.
What candidate should know about:
- Excellent hands-on experience with Node.Js, Express.Js, JavaScript
- Understanding the nature of asynchronous programming and its quirks and workarounds
- Excellent hands-on experience with MongoDB, Mongo aggregation, MySQL
- Ability to build REST services, Authentications, MVC applications
- Excellent Object Oriented Programming skills and ability to write modular, secure, scalable, and maintainable code
- Experience with Elastic Search, Redis.
- Knowledge about AWS components (S3, EC2, Cloudfront, Redis Clusters, etc.)
- Self-learning abilities are required
- Familiarity with upcoming new technologies is a strong plus
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.
You will also be responsible for integrating the front-end elements built by your co-workers into the application.
Therefore, a basic understanding of front-end technologies is necessary as well.











