
Principal Engineer (node.js)
at FinTech Product Development Firm
Your Responsibilities:
- Own the backend stack – Node.Js based, that powers our product
- Collaborate with Backend Developers (Python), Front-end developers, DevOps, and Data Scientists to design and implement new features
- Build and maintain several REST’ful Services/Endpoints which will be used both internally and externally in a Macroservices/Distributed services environment.
- Deploy and monitor the Services/Endpoints ensuring availability and scalability(ability to handle 100X traffic)
- Work on full project lifecycle starting from requirements gathering/understanding the problem to deploying and maintaining the project.
Skills that you bring Along:
- A minimum 8+ years of extensive work experience with Node.Js and related frameworks – particularly Express.Js.
- Extensive experience in designing and maintaining REST’ful API endpoints
- Extensive experience with databases such as Postgres and Mongo.
- Extensive experience in Cloud Infrastructure (AWS based) – e.g. AWS API Gateway, Lambda Functions etc.
- Experience with cache like Redis and/or Memory cache
- Good experience in Microservices/Macroservices or Event driven Architectures
- Good experience with design patterns
- Experience in writing advanced SQL-queries, good knowledge of PL/SQL
- Good understanding of Software Design Principles and domain-driven design
- Good experience with Continuous Delivery and Containerization(Docker)
- Ideally maintaining infrastructure-as-code using Terraform
- Excellent communication skills and the ability to explain complex topics in a simple manner

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Responsibilities:
We’re looking for someone who is enthusiastic, comfortable with uncertainty, flexible, great with people and isn’t afraid to roll up their sleeves and get their hands dirty. Every day is an opportunity to bring your vision to life, and to expand, learn, and grow. No idea is left unconsidered. No voice is left unheard.
- Supporting system design, development and maintenance
- Taking responsibility for personal technical quality standards within the team
- Assisting in defining structured practices, especially in source code management, building and deployment
- Optimising applications for maximum speed and scalability
- 2-6 years of experience
Skills
NodeJs
Person should have strong knowledge in -
1. Core Java,
2. JSP
3. Spring Framework,
4. Spring Boot,
5. SOAP and REST Webservices
6. Application Security.
Person should have 4 to 6 Years of work experience in Java and the above-mentioned related technology.
Person should have good Oracle Database knowledge and have good communication skills.
Having work experience in BFSI domain will added advantage
Person needs to work from Mumbai location and also available to join the office
Responsibilities:
- Design and develop large scale web applications using Node.js;
- Full-cycle projects and product development;
- Focus on software development and build Restful API's;
- Contribute to the overall software development life-cycle including requirements gathering, analysis, design, development, release/version control, testing, deployment, and support;
- Be a part of an agile-based team
Requirements:
- Exposure to ES6 knowledge of REST API Design and Development in Node.js.
- Basic Knowledge of Web Socket.
- Strong Knowledge of Javascript, Good exposure to Redis, MongoDB.
- Should be having a basic understanding of HTML5, CSS3, Bootstrap4.
We Offer:
- 5 Days Working
- Competitive Salary.
- Knowledge-Based Hierarchy
- Trending Technology Development
- Career Development Programs.
- Tremendous Scope of Responsibilities and KPIs Aligned with Individual and Organisational Goals.
- Exposure to working with a team size of 65+.
- Good Project Incentives and Rewards.
- Explore Incredible India!Workation Programmes with Airfare, Hotelstay.
- Work-Life Balance.
- Fantastic Team Spirit with Creative, Fun and Open Office Work Culture.
About Us:
We live in the realm of rising, ever evolving technology. From the cassette tape to nanotech skeletons, we’ve come a long way. Splitting an atom is no big deal – and who’d have thought that we’d talk through airwaves? Change is inevitable, and we’re the tide that brings it.
At Relinns, we breathe tech solutions and embrace innovation with open arms. With over 4 years of experience, we've had phenomenal growth which acts as a testimony to the knowledge we've come to gather over time. We have been fortunate enough to get an opportunity to work with clients such as Apollo Tyres, Shahi Exports, Manchester City Football Club, etc.
Our team is on the path of finding religion in the workplace of today. To find our way, we have three tools at our disposal: cutting edge technological tools, a meticulously dedicated work ethic, and crisp bow-tie professionalism.
About the role:
We are looking for a Node.js Developer responsible for managing the interchange of data between the server and the client. 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 client 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.
What You Need for this Position:
- Strong understanding of JavaScript, its quirks and workarounds.
- Basic understanding of TypeScript & its quirks and workarounds.
- Advanced knowledge of NPM and the most frequently used libraries (E.g: Socket.io, Underscore.js, Passport, etc.).
- Knowledge of any Node.JS ORM (Mongoose, Sequlize, Knex, etc.).
- Understanding of any of the following Node.JS frameworks: Express JS, Koa Js, Hapi JS or any other.
- Good understanding of OOP and data structures.
- JavaScript unit testing frameworks (prefer Unit.js, Mocha).
- Ability to write complex algorithms.
- Understanding of code versioning tools, such as {GIT / Mercurial / SVN}.
What You Will Be Doing:
- Develop and provide solutions on JavaScript frameworks
- Develop high-traffic, flawless web applications using Node.JS
- Participate in code and design reviews to ensure consistency in architecture and design/code practice
- Code with performance, scalability, and usability in mind
- Work on new tools in leading industry trends, with new and emerging technologies, prototypes and engineering process improvements
- Work closely with next-generation architecture development teams using cutting edge approaches and technologies
Top Reasons to Work with Us:
- We're a small, fast-paced growing team tackling huge new challenges every day.
- Learning new concepts while working with intellectual and exceptionally talented team
- Friendly and high growth work environment
- Competitive compensation
Following are the things that we are looking for in our NodeJS developer:
- Full SDLC knowledge, preferably in an agile environment.
- Strong written and verbal communication skills. Strong critical thinking & problem solving skills.
- Understanding of Unix / Linux based systems.
- Hands-on exposure to deeply linked relational databases – preferably in MySQL
- Ability to take a feature or product through the full Software Development Life Cycle.
- Strong communication skills, including the ability to both collaborate well and also the ability to convey technical ideas and concepts to non-technical stakeholders.
- Identify the interaction needs and how the API. must be developed based on design comps, product specs, etc.
- Continuously evaluate and implement new technologies to maximize development efficiency.
- Address and prioritize production level bugs and application performance improvements.
- An adaptable attitude and understanding of the agile methodology.
- Unit-test code for robustness, including edge cases, usability, and general reliability.
- Collaborate with cross-functional teams to define, design, and release new features.
Backend - Software Development Engineer-III
Responsibilities:-
- Research, design and build highly reliable, available and scalable platforms
- Explore design implications and work towards an appropriate balance between functionality, performance, and maintainability.
- Lead by example, mentor and guide team members on everything from structured problem solving to development of best practices
- Own large technical deliverables and execute in an exemplary way
- Be able to conceptualize and develop prototype quickly
- Working with a cross-discipline team of Design, Product, Data Science and Analytics team.
- Active participation in the hiring process to bring quality engineers in the team.
Requirements:-
- Strong proficiency in Javascript and TypeScript
- Strong proficiency of Node.js and frameworks available for it such as Express
- Strong understanding and experience of creating highly scalable and complex database design
- Good understanding of Data Modeling using RDBMS and NoSQL(Cassandra, MongoDB, ElasticSearch, Redis) data stores
- Strong problem-solving skills with a good understanding of data structures and algorithms
- Strong understanding of front-end technologies, such as HTML5, and CSS3
- User authentication and authorization between multiple systems, servers, and environments
- Experience of creating highly scalable, fault tolerant, resilient distributed systems
- Strong knowledge of creating scalable system design and good understanding of microservice based architectures
- Understanding of caching enabled, PubSub and event driven architectures
- Hands on experience and good knowledge of AWS services
- Understanding automated testing platforms like selenium and unit tests like Chai, Mocha, Jasmine etc
- Proficient understanding of code versioning tools, such as Git
- E/B.Tech/M.E./M.Tech/M.S.
- Curiosity to explore the cutting edge technologies and bake them in the products.
- Zeal and drive to take end to end ownership.
- 5+ years of experience in back end development preferably in microservice environment.








