Backend Developer

Senior Backend Developer

Job Overview: We are looking for a highly skilled and experienced Backend Developer who excels in building robust, scalable backend systems using multiple frameworks and languages. The ideal candidate will have 4+ years of experience working with at least two backend frameworks and be proficient in at least two programming languages such as Python, Node.js, or Go. As an Sr. Backend Developer, you will play a critical role in designing, developing, and maintaining backend services, ensuring seamless real-time communication with WebSockets, and optimizing system performance with tools like Redis, Celery, and Docker.

Key Responsibilities:

• Design, develop, and maintain backend systems using multiple frameworks and languages (Python, Node.js, Go).
• Build and integrate APIs, microservices, and other backend components.
• Implement real-time features using WebSockets and ensure efficient server-client communication.
• Collaborate with cross-functional teams to define, design, and ship new features.
• Optimize backend systems for performance, scalability, and reliability.
• Troubleshoot and debug complex issues, providing efficient and scalable solutions.
• Work with caching systems like Redis to enhance performance and manage data.
• Utilize task queues and background job processing tools like Celery.
• Develop and deploy applications using containerization tools like Docker.
• Participate in code reviews and provide constructive feedback to ensure code quality.
• Mentor junior developers, sharing best practices and promoting a culture of continuous learning.
• Stay updated with the latest backend development trends and technologies to keep our solutions cutting-edge.

Required Qualifications:

• Bachelor’s degree in Computer Science, Engineering, or a related field, or equivalent work experience.
• 4+ years of professional experience as a Backend Developer.
• Proficiency in at least two programming languages: Python, Node.js, or Go.
• Experience working with multiple backend frameworks (e.g., Express, Flask, Gin, Fiber, FastAPI).
• Strong understanding of WebSockets and real-time communication.
• Hands-on experience with Redis for caching and data management.
• Familiarity with task queues like Celery for background job processing.
• Experience with Docker for containerizing applications and services.
• Strong knowledge of RESTful API design and implementation.
• Understanding of microservices architecture and distributed systems.
• Solid understanding of database technologies (SQL and NoSQL).
• Excellent problem-solving skills and attention to detail.
• Strong communication skills, both written and verbal.

Preferred Qualifications:

• Experience with cloud platforms such as AWS, Azure, or GCP.
• Familiarity with CI/CD pipelines and DevOps practices.
• Experience with GraphQL and other modern API paradigms.
• Familiarity with task queues, caching, or message brokers (e.g., Celery, Redis, RabbitMQ).
• Understanding of security best practices in backend development.
• Knowledge of automated testing frameworks for backend services.
• Familiarity with version control systems, particularly Git.

Our backend (NodeJS) team is passionate about technology, and we love building scalable web and mobile solutions keeping performance in mind. We're looking for a full stack developer that has experience developing a variety of Web Apps and REST API using the NodeJS stack. 

(Along with strong backend expertise, needs good understanding on frontend tech stack to give support to frontend developer) 

Role + Responsibilities:   

• Review PR’s and provide appropriate comments. 
• Help team in debugging the issues and provide proper solution. 
• Participate in architecture, design and sprint planning of the projects. 
• Write reusable, testable, maintainable and scalable code with Unit Testing. 
• Implementation of security and data protection throughout the project. 
• Implementation on Design Patterns like TDD & BDD. 

Person Specification and Qualifications: 

• Fluency in written and verbal communication. 
• Experience developing highly scalable services and APIs in multiple protocols. 
• Knowledge of data modelling and database performance optimization in SQL & No SQL databases. 
• Must have worked with PostgreSQL and MongoDB using TypeORM, Sequalize or Knex. 
• Strong experience with core concepts of JS & TS. 
• Experience working with Frameworks like NestJS, LoopBack, Express, and other Framework in Typescript. 
• Must have worked with unit testing libraries like Jest, Mocha and Chai. 
• Good knowledge of code versioning (git or bitbucket).                    
• Hands on experience with Docker for building micro service. 

Plus, points if you're familiar with the following:  

• Experience with deployment and CI/CD.                
• Knowledge of GraphQL and its libraries like Apollo and Prisma. 
• Knowledge of SDK integration (social media SDK like Facebook, Google, etc. and Cloud services like AWS, Azure and Google). 
• Good experience with Linux commands and basic server configuration. 
• Knowledge of document, key/value or other non-relational database systems such as Elastic Search, Redis, DynamoDB. 
• Experience with queuing protocols.

• Good understanding and experience of HTML / CSS / JavaScript.
• Hands-on experience with ES6 / ES7 / ES8 features.
• Thorough understanding of the Request Lifecycle (including Event Queue, Event Loop, Worker Threads, etc).
• Familiarity with security principles including SSL protocols, data encryption, XSS, CSRF.
• Expertise in Web Services / REST APIs will be beneficial.
• Proficiency in Linux and deployment on Linux are valuable.
• Knowledge about ORM like Sequelize and ODM like Mongoose and the ability to handle DB transactions is a necessity.
• Experience with Angular JS / React JS will be an added advantage.
• Expertise with RDBMS like MySQL / PostgreSQL will be a plus.
• Knowledge of AWS services like S3, EC2 will be helpful.
• Understanding of Agile and CI/CD will be of value.

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