Node.js Developer

Job Title: Lead Backend Developer

Location: Bengaluru, India 

iAI Solution Pvt Ltd (https://iaisolution.com/),operates at the edge of applied AI where foundational research meets real-world deployment. We craft intelligent systems that think in teams, adapt with context, and deliver actionable insight across domains.

Position Summary:

• We are looking for a Lead Backend Developer with 4+ years of professional experience in Python-based development, especially using FastAPI and MongoDB. The ideal candidate is skilled in building and maintaining scalable, high-performance back-end services and APIs, has strong understanding of modern database design (SQL & NoSQL), and has experience integrating backend services with cloud platforms.
• Experience or interest in AI/ML projects is a strong plus, as our products often interface with LLMs and real-time AI pipelines.
• Key Responsibilities:
• Design, build, and maintain robust backend services using Python and FastAPI.
• Develop and maintain scalable RESTful APIs for internal tools and third-party integrations.
• Work with MongoDB, PostgreSQL, and Redis to manage structured and unstructured data efficiently.
• Collaborate with frontend, DevOps, and AI/ML teams to deliver secure and performant backend infrastructure.
• Implement best practices in code architecture, performance optimization, logging, and monitoring.
• Ensure APIs and systems are production-ready, fault-tolerant, and scalable.
• Handle API versioning, documentation (Swagger/OpenAPI), and error management.
• Optimize queries, indexes, and DB schema for high-performance data access.
• Maintain clean code with emphasis on object-oriented principles and modular design.
• Troubleshoot production issues and deliver timely fixes and improvements.

Qualifications:

• Overall Experience: 4+ years in backend software development.
• Python: Strong proficiency with object-oriented programming.
• Frameworks: Hands-on experience with FastAPI (preferred), Django.

Databases:

• MongoDB: Experience with schema design, aggregation pipelines, and indexing.
• Familiarity with SQL databases (PostgreSQL/MySQL).
• Experience with Redis and optionally Supabase.

API Development:

• Proficient in building and documenting REST APIs.
• Strong understanding of HTTP, request lifecycles, and API security.

Testing & Debugging:

• Strong debugging and troubleshooting skills using logs and tools.

Performance & Scalability:

• Experience optimizing backend systems for latency, throughput, and reliability.

Tools:

Git, Docker, Linux commands for development environments.

Must-Have Skills:

• Proficiency in Python and object-oriented programming
• Strong hands-on experience with FastAPI (or similar async frameworks)
• Knowledge of MongoDB for schema-less data storage and complex queries
• Experience building and managing REST APIs in production
• Comfortable working with Redis, PostgreSQL, or other data stores
• Experience with Dockerized environments and Git workflows
• Solid grasp of backend architecture, asynchronous programming, and performance tuning
• Ability to write clean, testable, and maintainable code

Good-to-Have Skills:

• Experience with asynchronous programming using async/await
• Integration with third-party APIs (e.g., Firebase, GCP, Azure services)
• Basic understanding of WebSocket and real-time backend patterns
• Exposure to AI/ML pipelines, model APIs, or vector DBs (e.g., FAISS)
• Basic DevOps exposure: GitHub Actions, Docker Compose, Nginx
• Familiarity with JWT, OAuth2, and backend security practices
• Familiarity with CI/CD pipelines and versioning
• Basic understanding of GraphQL or gRPC is a plus

Preferred Qualifications:

• Bachelor’s degree in Computer Science, Engineering, or a related field
• 
  
• Demonstrated experience delivering production-grade backend services
• 
  
• Experience working in agile teams and using tools like Jira
• 
  
• Familiarity with Agile/Scrum methodologies and sprint cycles
• 
  
• Interest or experience in AI/ML-integrated systems is a plus
• 
  

Perks & Benefits:

• Competitive salary with performance-based bonuses
• Opportunity to work on AI-integrated platforms and intelligent products
• Access to latest tools, cloud platforms, and learning resources
• Flexible working hours and hybrid work options
• Wellness initiatives and team-building activities

Description

Our Engineering team is at the heart of Sarvika’s ability to deliver enterprise-grade digital

products and experiences. As React specialists, they build performant, scalable, and

secure web applications that empower businesses to innovate and grow faster. By

combining technical excellence with relentless collaboration, our engineers solve complex

challenges, streamline processes, and bring ideas to life with speed and precision.

Engineers in this role actively contribute to Sarvika’s component libraries and design

system accelerators, ensuring code and design remain in sync across multiple domains.

They work on enterprise-scale solutions, including headless and composable commerce,

complex integrations, and next-generation mobile applications.

Here’s what you should know if you want to be a React Developer at Sarvika.

Requirements

The ideal person

● Strong portfolio or GitHub demonstrating impactful React projects.

● Experience leading or significantly contributing to all stages of the software

development lifecycle.

● Deep understanding of component-based architecture, state management, and

modern JavaScript/TypeScript practices.

● Proven hands-on experience with React, TypeScript, and Next.js.

● Excellent problem-solving and communication skills to clearly articulate technical

decisions.

● Commitment to writing clean, testable, and maintainable code.

● Proven ability to work in Agile teams, contributing to strategies that align with

business and user goals.

Desirable Skills

● Strong knowledge of JavaScript, TypeScript, ES6+, and functional programming

principles.

● Familiarity with major libraries and frameworks (Redux, React Query, etc.).

● Experience integrating RESTful APIs and GraphQL into front-end applications.

● Understanding of accessibility standards (WCAG) and inclusive development best

practices.

● Experience with automated testing frameworks (Jest, Cypress) and QA

collaboration.

● Solid grasp of modern front-end tooling: Vite, Babel, ESLint, Prettier.

● Experience collaborating with designers and product managers to refine

● requirements and deliver exceptional user experiences.

● Knowledge of design systems and component libraries, with ability to extend or

contribute to them.

● Proficiency with tools like Git, Jira, Confluence, and GitHub/GitLab workflows.

● Ability to mentor junior engineers, foster technical excellence, and promote best

practices.

● Passion for staying current with emerging front-end and mobile technologies.

● Experience with React Native and cross-platform mobile development.

We are on a mission to enable businesses to build agile and accountable technology teams that can deliver results in a secure and scalable way. You will be working in one such technology team for our clients across the world.

• Collaborate with front-end and back-end developers and designers to build website following client requirements

• Create clear, simple, and reusable code

• Develop all server-side logic, including data storage to optimize website performance

• Identify programming bottlenecks and bugs and find fixes

• Test, update and validate web applications to be used on different web browsers

• Execute automated testing platforms and system tests

• BSc/BE/BTech in Computer Science, Engineering or a related field

• At least 2+ years of experience with JavaScript and Node.js

• Hands-on expertise in REST, MySQL/PostgreSQL, WebSocket, MongoDB, Redis, etc.

• Familiarity with Docker and AWS infrastructure

• Understanding of data security principles

• Proficiency in JavaScript, web stacks, libraries, and frameworks

• Strong analytical and problem-solving aptitude skills

About us:
Equal parts creative agency, engineering firm, and consultancy, Grappus has a reputation of doing things differently. We work with brands big and small, far and wide, helping them understand, prototype and deploy a broad range of custom tech. We value design and we cringe at bad UX. Each project is a clean slate, we don’t have frameworks, or any pre-made formulas. We’re not here to just grow big, make money and win awards. We’re here to crack the process of building truly innovative products from scratch. Products that make people say ‘damn’.

People at Grappus usually experience a highly accelerated career growth well beyond the narrow constraints of their ‘job description’. Here, the growth ladder is tailored to you. It operates exactly as fast as you can manage to grow. We think it's a waste when smart people are unable to make an impact. Our aim is to unleash your potential by giving you massive challenges and the freedom to solve them.

We’re in a fluid world, where we don’t know what technologies we’ll use next, or the projects we’ll work on. We’re actively searching for ways to shine a light on our blind spots, whether it is in the products we want to build, the problems we like to solve, or the company culture we try to create. That’s what makes life at Grappus so exciting. Grappus is an ongoing experiment and you are a part of it. We'll be a different company a few years from now because you are going to change it for the better. We can’t wait to see where you take us.

About the role:
We are seeking a Senior Backend Developer who has a knack for coming up with creative solutions to unique problems, planning development cycles and writing technical documentation while leading a team of developers. You should have experience with different design pattern implementation and be quick in making architectural decisions. You can get in where needed to write clean, reusable, and performant code, with creative sensibilities to push projects towards perfection. You should have good time management skills and be able to work both autonomously and collaboratively with a cross-discipline team of product managers, strategists, UX designers, art directors, and developers.

What we’d like to see:
● Ability to write elegant and readable code
● Excellent problem solving skills and love technical challenges
● Comfortable working in a team-oriented and collaborative environment
● Strong understanding of Agile and Lean software development processes and practices
● Stays plugged into emerging technologies/industry trends and applies them proactively
● Taking leads on projects as needed
● Knowledge of software best practices, like test driven development and continuous integration
● Directing the development team in the design, development, coding, testing and debugging of applications

Must have:
● BE/ BTech in Computer Science or a related field or equivalent practical experience
● 4+ years of professional backend development experience
● Experience coaching and mentoring junior developers
● Aggressive problem diagnosis and creative problem solving skills and client handling      skills
● Ability to work and thrive in a fast-paced environment, learn rapidly and master diverse web technologies and techniques
● Experience working with Python/Django or NodeJS
● Knowledge of DRF, Redis, Celery, RabbitMQ, Jenkins, MongoDB and PostgreSQL
● Implemented CI/CD in any of the projects done
● Strong understanding of the full web technology stack (i.e. HTTP, caching, headers, cookies, etc)
● Proficiency in working with API’s and third party integrations
● Demonstrated ability to learn new technologies
● Experience with multi-tenant architectures (SaaS)
● Experience with Test Driven Development
● Excellent project and time management skills

Nice to have:
● Familiarity and experience using a variety of architectural Design Patterns
● Knowledge of Kubernetes/Docker and Devops
● Personal projects or contributions to the open source community
● Strong organizational skills to juggle multiple tasks within the constraints of timelines
● Team player (those great personality types that people love to work with)
● Great communication skills

Why you’ll love it here:
(Besides working with our team with infinite charm)

● We have no fixed work timings or leave policy, you can take unlimited leaves and start your day whenever you want. (Just make sure others in your team don’t suffer)
● We don’t track these hours you put in or ask you to fill time sheets. We don’t believe in
micromanaging, if you’re struggling, ask for help. If someone else is, offer some support.
● We never mind if people make mistakes or screw up in any way, and offer full encouragement to help people learn fast by failing fast.
● We always encourage people to be completely candid, raise alarms, or log complaints
anonymously in our feedback tool, no matter how harsh.
● We are a ‘Work from Anywhere’ company, since passionate, driven people can work from
anywhere they want; their homes, or cafes, or mountains, or beaches, anywhere.
● We have a 15-day notice period. We want to build a place where people work willingly and passionately.

JD for NodeJS

Mandatory Skills - Nodejs, Javascript, Express.js, MongoDB, Data Structures, Algorithms. 

Please find the JD below:-

• Expertise in Node.js Web frameworks like Meteor, Express, and Kraken.JS
• Expertise in building highly scalable web services using Node.js, Create REST API with the help of Node middleware
• Deep understanding of REST and API design
• Experience designing APIs for consistency, simplicity, and extensibility.
• Expertise with JavaScript testing frameworks like Jasmine, Quit, Mocha, Sinnon and Chai. 
• Expertise with build tools like Web pack, gulp, and grunt.
• Integration of various application components
• Experience in various phases of Software Development Life Cycle (SDLC) such as requirements analysis, design, and implementation in an agile environment, etc.

About Us :-

Mobile programming LLC is a US based digital transformation company. We help enterprises transform ideas into innovative and intelligent solutions, governing the Internet of Things, Digital Commerce, Business Intelligence Analytics and Cloud Programming. Bring your challenges to us, we will give you the smartest solutions. From conceptualizing and engineering to advanced manufacturing, we help customers build and scale products fit for the global marketplace.

Mobile programming LLC has offices located in Los Angeles, San Jose, Glendale, San Diego, Phoenix, Plano, New York, Fort Lauderdale and Boston. Mobile programming is SAP Preferred Vendor, Apple Adjunct Partner, Google Empaneled Mobile Vendor and Microsoft Gold Certified Partner. 

Moreover We have our presence in India with 7 locations i.e Gurgaon, Mohali, Panchkula, Pune, Bangalore, Dehradun & Chennai.

For more information please visit to our website link below:-

https://www.mobileprogramming.com/">https://www.mobileprogramming.com