Backend Developer

Note: Salary will be offered based on your overall experience and last drawn salary.

Job Title: Nodejs Developer (Full-time)

Location: Gurugram (Onsite)

Experience Required: 3+ Years

Working Days: 5 Days (Mon to Fri)

Job Summary

We are looking for a skilled Node.js Developer who is experienced with JavaScript/TypeScript, databases, and modern AI development tools. You will build and maintain backend applications, design scalable systems, and use AI tools to enhance development productivity. The role involves backend development, database management, API development, and cloud deployment.

What You’ll Be Doing

Backend Development

• Build and maintain Node.js applications, services, and APIs.
• Write clean, readable JavaScript/TypeScript code.
• Create and manage REST APIs; work with GraphQL when required.
• Develop microservices and containerized applications (Docker).
• Participate in code reviews and help maintain coding standards.

Database Work

• Design database schemas for PostgreSQL, MongoDB, and Redis.
• Write optimized SQL and NoSQL queries.
• Implement indexing and manage database performance tuning.
• Handle database scaling and caching strategies.

AI Tools & Productivity

• Use AI coding assistants (GitHub Copilot, Cursor AI, Tabnine).
• Integrate AI APIs (OpenAI, Claude) into backend applications.
• Build features powered by AI/ML capabilities.
• Use AI tools to debug and enhance code quality.

Deployment & Operations

• Deploy applications on AWS, Azure, or GCP.
• Set up CI/CD pipelines (GitHub Actions, Jenkins).
• Work with Docker and Kubernetes.
• Monitor backend services and perform troubleshooting.

Job Requirements

Must-Have (3 Years Experience)

• Strong hands-on experience with Node.js and Express.js.
• Excellent understanding of JavaScript/TypeScript, ES6+, async/await.
• Experience with at least one major database: PostgreSQL, MongoDB, Redis.
• Knowledge of API development (REST, GraphQL).
• Hands-on experience with Git and version control.
• Experience with testing tools like Jest, Mocha, or similar.

Bonus Skills (Good to Have)

• Cloud platforms: AWS, Azure, Google Cloud.
• Docker, Kubernetes.
• CI/CD pipelines.
• Frontend exposure (React/Vue/Angular).
• Message queues: RabbitMQ, Kafka.
• Caching: Redis, Memcached.
• API security: JWT, OAuth2.

We are looking for a Technical Lead - GenAI with a strong foundation in Python, Data Analytics, Data Science or Data Engineering, system design, and practical experience in building and deploying Agentic Generative AI systems. The ideal candidate is passionate about solving complex problems using LLMs, understands the architecture of modern AI agent frameworks like LangChain/LangGraph, and can deliver scalable, cloud-native back-end services with a GenAI focus.

Key Responsibilities :

- Design and implement robust, scalable back-end systems for GenAI agent-based platforms.

- Work closely with AI researchers and front-end teams to integrate LLMs and agentic workflows into production services.

- Develop and maintain services using Python (FastAPI/Django/Flask), with best practices in modularity and performance.

- Leverage and extend frameworks like LangChain, LangGraph, and similar to orchestrate tool-augmented AI agents.

- Design and deploy systems in Azure Cloud, including usage of serverless functions, Kubernetes, and scalable data services.

- Build and maintain event-driven / streaming architectures using Kafka, Event Hubs, or other messaging frameworks.

- Implement inter-service communication using gRPC and REST.

- Contribute to architectural discussions, especially around distributed systems, data flow, and fault tolerance.

Required Skills & Qualifications :

- Strong hands-on back-end development experience in Python along with Data Analytics or Data Science.

- Strong track record on platforms like LeetCode or in real-world algorithmic/system problem-solving.

- Deep knowledge of at least one Python web framework (e.g., FastAPI, Flask, Django).

- Solid understanding of LangChain, LangGraph, or equivalent LLM agent orchestration tools.

- 2+ years of hands-on experience in Generative AI systems and LLM-based platforms.

- Proven experience with system architecture, distributed systems, and microservices.

- Strong familiarity with Any Cloud infrastructure and deployment practices.

- Should know about any Data Engineering or Analytics expertise (Preferred) e.g. Azure Data Factory, Snowflake, Databricks, ETL tools Talend, Informatica or Power BI, Tableau, Data modelling, Datawarehouse development.

Job Description:

We are looking for a skilled and motivated Laravel Developer with 1-3 years of experience to join our dynamic development team. The ideal candidate will have hands-on experience in building modern web applications using Laravel and a strong understanding of PHP. As a Laravel Developer, you will be responsible for developing, maintaining, and optimizing various web applications, while ensuring high performance, scalability, and security.

Responsibilities:

• Build high-quality web applications from scratch using Laravel.
• Troubleshooting issues in the implementation and debug builds.
• Design, build, and maintain efficient, reusable, and reliable code to ensure the applications' best possible performance, quality, and responsiveness.
• Contribute to all phases of the development lifecycle.
• Collaborate with cross-functional teams to define, design, and ship new features.
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency.
• Prepare and maintain all applications utilizing standard development tools.
• Keep abreast of new trends and best practices in web development.
• Learn new Software/frameworks/ languages/technologies with ease.
• Finalizing back-end features and testing web applications.
• Refactor, optimize, and improve the existing codebase for maintenance and scale.
• Solve complex performance problems and architectural challenges.

Requirements:

• Good working knowledge of the PHP-based MVC framework Laravel.
• Good knowledge of PHP, HTML, CSS & JavaScript, and understanding of Database concepts & working knowledge of MySQL.
• Understanding the fully synchronous behavior of PHP.
• Understanding of MVC design patterns.
• A clear understanding of RESTful API development standards.
• Passion for best design and coding practices, and a desire to develop new bold ideas.
• Understanding fundamental design principles behind a scalable application.
• Creating database schemas that represent and support business processes
• Proficient understanding of code versioning tools, such as Git
• Excellent problem-solving skills.
• Understanding and managing Linux servers & AWS/GCP
• Hands-on experience with Redis will be an added advantage

Preferred Skills:

• Experience with front-end frameworks (Vue.js, React, etc.).
• Familiarity with testing frameworks such as PHPUnit.
• Knowledge of cloud platforms and deployment (AWS, DigitalOcean, GCP, etc.).

Education:

• Bachelor's degree in Computer Science, Information Technology, or a related field (or equivalent work experience).

Benefits & Perks:

• Vibrant & engaging work culture. 
• Flexible working hours & leave policy.
• Performance-based rewards & incentives.
• Best place to learn, work & grow.
• Free coffee bar to keep the employees energetic.

• 3+ years of working experience using NodeJS
• Knowledge on Express and/or React Js added advantage
• Experience in MongoDB and/or Postgres
• Experience in designing and developing serverless applications
• Knowledge of SOLID principles, Design patterns
• Good debugging skills using modern Dev Tools
• Experience with RESTful API development and integration
• Microservice experience is preferred
• Experience in Unit tests, code reviews
• Experience in cloud platforms – AWS is a plus
• Ability to up-skill in new technologies
• Innovative thinker with strong problem-solving skills

• NodeJS 
• NPM
• RESTful API
• Microservice
• MongoDB
• Postgres

Project Overview: We are looking for expert level Postgres database developer to work on a software application development project for a fortune 500 US based telecom client. The application is web based and used across multiple teams to support their business processes. The developer will be responsible for developing various components of the Postgres database and for light administration of the database.

Key Responsibilities: Collaborate with onshore, offshore and other team members to understand the user stories and develop code. Develop and execute scripts to unit test. Collaborate with onshore developers, product owner and the client team to perform work in an integrated manner.

Professional Attributes: Should have the ability to work independently and seek guidance as and when necessary - Should have good communication skills - Flexible working in different time zones if necessary - Good team player - Mentoring juniors

Experience preferred:

• Extensive experience in Postgres database development (expert level)
• Experience in Postgres administration.
• Must have working experience with GIS data functionality
• Experience handling large datasets (50-100M tables)
• Preferred – exposure to Azure or AWS
• Must have skillsets for database performance tuning
• Familiarity with web applications
• Ability to work independently with minimal oversight
• Experience working cohesively in integrated teams
• Good interpersonal, communication, documentation and presentation skills.
• Prior experience working in agile environments
• Ability to communicate effectively both orally and in writing with clients, Business Analysts and Developers
• Strong analytical, problem-solving and conceptual skills
• Excellent organizational skills; attention to detail
• Ability to resolve project issues effectively and efficiently
• Ability to prioritize workload and consistently meet deadlines
• Experience working with onshore-offshore model

NodeJS Developer:

We at Fabzen Technologies are looking for a knowledgeable and experienced individual to fulfil the role of Node.js developer.

Requirements:

• Bachelor’s degree in Computer Science, Software Engineering or related field.
• Professional experience on a software development team as a Node.js developer.
• Strong software documentation skills.
• Ability to comprehend and implement detailed project specifications as well as the ability to adapt to various technologies.
• Strong problem-solving skills.
• Understanding of Software Development Life Cycle.
• High attention to detail.
• Excellent troubleshooting and communication skills.
• Able to work well in a team setting.

The candidate must be proficient at:

• Socket programming
• Async await and promises
• Databases such as mongo, MySQL
• Passport JS for Google and Facebook integration
• Working on APIs with authentication and authorization

Responsibilities:

• Work closely with the development team to deliver code as required for the applications and their updates.
• Ensure the design and development of the application fulfil our requirements and achieve desired objectives.
• Ensure company standards are followed; Project schedules and issues are effectively managed, and the same is effectively communicated.
• Ensure documentation, knowledge sharing, and training in new software.
• Create technical specifications and test plans.
• Monitor the functioning of the application and provide suggestions and support to maintain the same.

Experience in a game development company or in developing gaming applications would be an added advantage.

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.

• 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

• Strong proficiency with JavaScript & OOPS
• Knowledge of Node.js and frameworks available for it 
• Understanding the nature of asynchronous programming and its quirks and workarounds
• Good understanding of server-side CSS preprocessors 
• Basic understanding of front-end technologies, such as HTML5, and CSS3
• Understanding accessibility and security compliance
• User authentication and authorization between multiple systems, servers, and environments
• Creating database schemas that represent and support business processes
• Implementing automated testing platforms and unit tests
• Proficient understanding of code versioning tools, such as Git
• Knowledge of AWS will be preferable

• Participate in brainstorming and technical ideation for projects with product, growth, and engineering
• You will design Scalable and Fault-Tolerant systems
• You will help Maintain critical and auxiliary systems (databases, cache ...)
• You will build Experiments that help validate hypotheses for the product

Experience:

2+yrs In your first 3 months, you will…

• Successfully onboard and create strong bonds with the current team
• Participate in brainstorming and technical ideation for projects with product, growth, and engineering
• Contribute to existing product features and experimentation

In your first 6 months, you will…

• Develop prototypes of new features or products using rapid iteration and experimentation as we explore new ideas
• Partner across the engineering team to ship features

In your first year, you will...

• Champion best-in-class engineering practices and systems for an emerging engineer team
• Help build a suite of features for the product

Our Ideal Hire:

• Learned best practices and has experienced the challenges and joys working at a startup
• Managed and maintained production code at increasing scales
• Feels strongly motivated by our mission
• Communicates complex problems and proposes solutions, in writing and in conversation

Expertise:

• Proficiency in any one language (ex: NodeJS / Go / Python)
• MySQL (design / indices / optimizing queries)
• Redis (types/ functionality/ use cases)

Hands-on experience:

• Handled scaling issue
• Good at debugging

Good to have:

• Kafka (or other stream-processing software)
• AWS

Do not apply if you are not:

• Ownership driven
• Curious in general
• Able to explain things in simple terms
• Self-motivated
• Use to work in the chaotic environment
• Highly proactive
• Willing to Mentor and humble to ask for collaboration
• Most important, Learn & Grow yourself!
• Hungry to grow anymore