Backend 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
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• Demonstrated experience delivering production-grade backend services
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• Experience working in agile teams and using tools like Jira
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• Familiarity with Agile/Scrum methodologies and sprint cycles
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• Interest or experience in AI/ML-integrated systems is a plus
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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

We are looking for a Node.js Developer to join our team.

In this role, you will be entrusted with developing JavaScript applications using Node.js.

Apply now for the role of a Node.js Developer at CodeBuddy that is opening doors for skilled, energetic developers looking for Mern Stack Developer Jobs.

If you can help us design and create multiple layers of applications while working cross-functionally across different infrastructures. You would fit perfectly if you love problem-solving, design, and creating quality offerings.

Technical Competency :

• Professional experience in Javascript Stack / Framework
• Development experience in Node.js
• Experience with backend using REST API.
• Proficiency in React.js concepts is a plus but not mandatory
• Experience with Object-Oriented Programming
• Ability to multitask and work in a fast-paced environment.
• Ability to document their code.
• Understanding accessibility and security compliance.
• To translate storyboards and various use cases to create high-performing apps
• Write, execute, and maintain clean, reusable, and scalable code
• Integrate our various data storage solutions
• Ensure the responsiveness and boost the performance of our apps
• Find and address the various bottlenecks and bug-fixes
• Help in code automatization
• Proficient use of GIT.

Interpersonal skills :

• Must be comfortable working in a team and independently when required.
• Must be disciplined, proactive, and self-motivated
• Needs to have problem-solving and analytical skills
• Good to have previous experience of direct client interaction for project briefs and updates.

What You Need To Apply:

• Previous work experience as a Node.js developer for 1 year at least.
• Strong experience with Javascript
• Self-motivated with the ability to work independently or jointly in a self-directed way.
• Demonstrated successful development of web or mobile-based applications
• Proven analytical and problem-solving capabilities
• Keen attention to detail
• Strong work ethic and desire to build industry-leading products
• Proactive instead of reactive
• Looking for ways to improve self and projects.

If you have it all in you, we are happy to have you with us!!!

Perks and Benefits:

We at Codebuddy believe our team is our biggest strength and we believe in paying our team members fair remuneration because we respect everyone’s effort.

• Review in every 9-12 months
• Opportunity to learn new technologies at the company's expense
• On-time salary (7th of every month)
• Fair pay policy
• Easy leave structure
• Performance awards
• Festival gifts
• Annual picnic
• Monthly dinner parties

We will be even happier if you have:

• Proficiency in Nest.js or Express.js,
• Being an open-source contributor,
• Ability to discover functional and non-functional requirements of an app, based on various levels of inputs from clients,
• Ability to transform customer ideas to business model and scope understandable by technical experts,
• Having excellent stakeholder management and client-facing skills.

Joining Codebuddy Means:

• Working in a comfortable and stimulating environment that boosts creativity,
• Being involved in challenging projects,
• Taking part and initiating knowledge-sharing initiatives,
• Working with clients from around the world, 
• Having the opportunity to bounce your ideas off our experienced team,
• Enjoying flextime and flexplace: adjust your daily schedule to your individual needs!
• We decide together and value equality: there is no strong hierarchy in our teams, and every opinion is more than welcome,
• Processes based on Scrum and Agile methodologies,
• Dev-friendly processes such as Code Review,
• The constant development of your hard and soft skills 
• Having a smooth start: your leader and a buddy will support you and mentor you.

What will happen next?

• Fill out the form
• Give us some time to review your application
• Meet us for an interview
• Complete a recruitment task to see how we work
• Join our team!

Stipend: INR. 5,000 to INR. 15,000 per month + Performance Bonus + Goodies for Elites

We are looking for skilled firebase backend engineer interns who can ensure the smooth exchange of data between the server and the user side.

• Experience in using Firebase
• Knowledge of Firebase Security Rules, Firebase Cloud Functions.
• Understanding of software development.
• Should have knowledge about data migration, transformation, and scripting.

1. Work with developers to implement back-end services, APIs, and internal tools
2. Optimize the backend framework to handle live data coming in from thousands of users
3. Integration of user-facing elements developed by a front-end developers with server-side logic

4. Design and implementation of data storage solutions.

Spacenos is the fastest-growing start-up which is innovating in the finance, edtech and marketing domain since 2015 and won multiple awards and recognitions from more than 40+ MNCs and Fortune 500 companies. Our Clients are based out of the U.S.A and Australia. We are funded & Supported by Government of Karnataka, Angel Investors and International Grants.

Hiring Process:

1. Apply for your CV and past work to be reviewed.
2. Receive a telephonic interview or assessment upon filling the final step form.
3. Receive offer letter if selected.

Apply soon, the earliest applicant would be preferred over the late applicants.

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 2 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.

• Experience in Node.js Frameworks
• Hands-on experience with MongoDB
• Strong proficiency with JavaScript, Socket IO, ExpressJS & SailsJS
• Experience working with third-party developer tools, including documentation, APIs, and SDKs
• Good Grasp of Asynchronous Programming and Its Workarounds
• Database Schema design for Business Processes
• Working Knowledge of JWT based passport Authentication
• Can Write and Refactor Efficient Codes
• Experience in Implementing Data Protection
• Must have demonstrated the ability to deliver high-quality products on time
• Knowledge of GIT, SVN technology