Open source expert

Backend Engineer (MongoDB / API Integrations / AWS / Vectorization)

Position Summary

We are hiring a Backend Engineer with expertise in MongoDB, data vectorization, and advanced AI/LLM integrations. The ideal candidate will have hands-on experience developing backend systems that power intelligent data-driven applications, including robust API integrations with major social media platforms (Meta, Instagram, Facebook, with expansion to TikTok, Snapchat, etc.). In addition, this role requires deep AWS experience (Lambda, S3, EventBridge) to manage serverless workflows, automate cron jobs, and execute both scheduled and manual data pulls. You will collaborate closely with frontend developers and AI engineers to deliver scalable, resilient APIs that power our platform.

Key Responsibilities

• Design, implement, and maintain backend services with MongoDB and scalable data models.
• Build pipelines to vectorize data for retrieval-augmented generation (RAG) and other AI-driven features.
• Develop robust API integrations with major social platforms (Meta, Instagram Graph API, Facebook API; expand to TikTok, Snapchat, etc.).
• Implement and maintain AWS Lambda serverless functions for scalable backend processes.
• Use AWS EventBridge to schedule cron jobs and manage event-driven workflows.
• Leverage AWS S3 for structured and unstructured data storage, retrieval, and processing.
• Build workflows for manual and automated data pulls from external APIs.
• Optimize backend systems for performance, scalability, and reliability at high data volumes.
• Collaborate with frontend engineers to ensure smooth integration into Next.js applications.
• Ensure security, compliance, and best practices in API authentication (OAuth, tokens, etc.).
• Contribute to architecture planning, documentation, and system design reviews.

Required Skills/Qualifications

• Strong expertise with MongoDB (including Atlas) and schema design.
• Experience with data vectorization and embeddings (OpenAI, Pinecone, MongoDB Atlas Vector Search, etc.).
• Proven track record of social media API integrations (Meta, Instagram, Facebook; additional platforms a plus).
• Proficiency in Node.js, Python, or other backend languages for API development.
• Deep understanding of AWS services:
• Lambda for serverless functions.
• S3 for structured/unstructured data storage.
• EventBridge for cron jobs, scheduled tasks, and event-driven workflows.
• Strong understanding of REST and GraphQL API design.
• Experience with data optimization, caching, and large-scale API performance.

Preferred Skills/Experience

• Experience with real-time data pipelines (Kafka, Kinesis, or similar).
• Familiarity with CI/CD pipelines and automated deployments on AWS.
• Knowledge of serverless architecture best practices.
• Background in SaaS platform development or data analytics systems.

Responsibilities

• Develop, deploy, and maintain scalable products
• Participate in code reviews, and design discussions to ensure code quality and distribute knowledge
• Pair with team members for functional and non-functional requirements to write well-crafted, well-tested, readable, and maintainable code.
• Help to define roadmap and architecture based on technology and business needs
• Understand business requirements and work closely with the business to provide solutions

Eligibility

• Strong expertise in Backend Python Development with skills to create APIs, integrate the functions into UI, and store and retrieve data from a variety of databases.
• Strong experience with Django/Flask.
• Strong experience in writing unit tests.
• B.Tech/B.E (Preferred CSE)

Responsibilities

• Work with stakeholders and fellow developers.
• Design and implement Python code using the Django framework.
• Identify and fix bottlenecks that may arise from inefficient code.
• Identify and fix software bugs.
• Create a wide variety of unit tests to verify the functionality of the software.
• Manage the security of the platform.
• Write detailed documentation around the code.
• Knowledge of front end languages.
• Create and maintain the application's architecture
• Write code that is reusable, testable, and efficient
• Create and implement applications that are low-latency, high-availability, and performant
• Integration of front-end developer-created user-facing components with server-side logic
• Security and data protection implementation
• Data storage solution integration

Skills

• Able to use Postman, JIRA or similar tools
• Python expert with an understanding of at least one Python web framework, such as Django, Flask, or others
• Working knowledge of several ORM (Object Relational Mapper) libraries
• Capable of combining many data sources and databases into a single system
• Knowledge of Python's threading constraints and multi-process architecture
• Solid knowledge of server-side templating languages such as Jinja 2, Mako, etc.
• Fundamental knowledge of front-end technologies such as JavaScript, HTML5, and CSS3
• Knowledge of accessibility and security regulations
• Managing and maintaining AWS
• Able to create RESTful APIs
• Able to integrate third-party APIs
• Familiarity with user authentication
• Authorisation across numerous systems, servers, and settings
• Knowledge of the core design ideas underlying a scalable application
• Experience with Python event-driven programming
• Understanding the distinctions between various delivery platforms, such as mobile vs desktop, and optimising output to meet the individual platform
• Capable of developing database schemas to represent and support business operations
• Excellent unit testing and debugging abilities
• Thorough knowledge of code versioning systems such as Git, Mercurial, or SVN
• Able to deploy the app on client cloud as well.

Requirements:

• Bachelor’s/Master in computer science
• 3-5 years of work experience
• Excellent problem-solving skills
• Able to work in a fast, unstructured environment
• Excellent communication and collaboration skills
• Must have access to FTTH internet connection

Job description

Experience: 1 year to 5 years

Pay Pack: for junior Developer will range from 1.2 to 2.15 Lacs

For Sr. Developer: 2.15 Lacs 5 Lacs

Although salary is not a constraint for a deserving candidate.

We are looking for 1.5 yrs+ experienced candidates proficient in PHP/ MySQL to develop Websites and web applications. The desired candidate would be involved in the full software/ website development life cycle starting from requirement analysis to testing. The candidate should be able to work in a team or should be able to handle projects independently.

Job Responsibilities: -

Hands-on experience in Core PHP along with working exposure in XHTML, HTML 5, JavaScript, CSS, Ajax, jQuery, bootstrap, APIs, Laravel.

PHP Scripting with MVC architecture Frameworks like Codeingnator and Laravel.

Should take responsibility to develop a website and Web-Based Application using Open Source systems.

Knowledge of Linux, Web application development, Quality software development.

Optimizing MySQL Queries and databases to improve the performance.

Excellent conceptual, analytical, and programming skills.Knowledge of Object-Oriented Programming (OOPS) concepts with Smarty and AJAX.

Should be well versed with OS: Linux/ UNIX, Windows (LAMP and WAMP)
Good experience in Relational Database Management Systems, Database design, Normalization.

Preference will be given if you hold working knowledge with Open Source like WordPress, Shopify, and other open-source eCommerce systems.

Good communication skills (spoken/written) will be a plus. Must be technically and logically strong.

Qualifications: BE/ B. Tech/ M. Tech/ MCA/ MCS/ MCM
Job Type: Full-time

Essential Duties and Responsibilities:

• Developing complete website architecture.
• Creating websites/a website using standard HTML/CSS practices
• Designing user interactions on web pages. 
• Developing back end website applications. 
• Creating servers and databases for functionality. 
• Ensuring cross-platform optimization for mobile phones. 
• Ensuring responsiveness of applications. 
• Seeing through a project from conception to finished product. 
• Designing and developing APIs. 
• Meeting both technical and consumer needs. 
• Researching different software programs, maintaining software documentation
• Implementing contingency plans in case the website goes down
• Maintaining and expanding/enhancing the website once built