Hello, I am Pratim.
A Principal Software Engineer.

A seasoned Principal Software Engineer with 10+ years of experience building impactful solutions, primarily in the EdTech industry. I specialize in leveraging technologies like JavaScript, Node.js, and modern AI tools (LangChain, LLMs) to create innovative applications. I’ve led teams, thrived in fast-paced startup environments, and am passionate about translating complex business needs into high-performing software. When I’m not coding, you can find me in the kitchen or in the water!

Contact me

About Me

I bring over 10 years of hands-on experience in a range of technologies, including JavaScript, TypeScript, Node.js, Express.js, React.js, PostgreSQL, MySQL, MongoDB, Ruby on Rails, Python, HTML, CSS, and DevOps practices (CI/CD, AWS).

Additionally, I have experience in developing agentic AI and retrieval-augmented generation (RAG) applications using advanced tools such as LangChain, LangChain Agents, and LangChain RAG with LLMs like OpenAI, Gemini, and llama.

Beyond my technical expertise, I have led a team of six engineers, fostering collaboration and driving project success. My career has primarily been in dynamic startup environments, where I've worked closely with co-founders to translate complex business requirements into practical, high-impact solutions.

Download Resume

GitHub LinkedIn

Feel free to check out my projects below or get in touch if you'd like to collaborate on something exciting!

Experience

AntWalk(YCW22)
10/2019 - Present

Principal Software Engineer
- As one of the first engineers in the company, I played a key role in designing and developing the backend architecture, scaling infrastructure, and ensuring high availability while optimizing costs. My work spanned across backend development, infrastructure management, CI/CD automation, and team leadership.
- Led and mentored the backend team, helping them unlock their full potential.
- Led, designed, and developed AntWalk LMS, also known as LXP
- Managed Infrastructure and Cloud(AWS), CI/CD and DevOps
- Built custom data and analytics framework
- Worked closely with business and product teams to gather and translate requirements into scalable technical solutions.
Think & Learn Pvt. Ltd. (Byju's)
12/2015 - 09/2019

Software Developer
- Contributed to backend REST APIs serving 1M+ daily active users for BYJU'S core learning platform
- Built scalable content management system (CMS) for managing premium educational content across diverse categories
- Contributed to the critical lead-capture system infrastructure, directly impacting business growth and user acquisition
- Worked closely with the team that designed and developed the core learning features including an interactive quiz engine, comprehensive course management system, and personalized learner journey tracking.
lmsofIndia (currently known as EDZLearn Services Private Limited)
10/2014 - 11/2015

Software Trainee
- Engineered custom Moodle themes and plugins for multiple enterprise LMS platforms using PHP, JavaScript, and modern web technologies
- Developed RESTful APIs extending Moodle's core functionality to support custom mobile applications
- Architected third-party service integrations using REST APIs and webhooks, enhancing platform capabilities
- Led performance optimization initiatives, resulting in improved codebase efficiency and security through systematic refactoring
- Established version control (Git) best practices and Linux environment workflows, mentoring team members in adoption
- Implemented staged deployment processes, enhancing release reliability and reducing deployment risks

Skills & Expertise

JavaScript

TypeScript

Node.js

Express.js

React.js

PostgreSQL

MySQL

MongoDB

Ruby on Rails

Python

HTML/CSS

DevOps (CI/CD, AWS)

LangChain

AI Applications

Additional Expertise

Git & Version Control CI/CD Pipelines GraphQL REST API Design Test-Driven Development Agile Methodologies UI/UX Design Microservices System Architecture Serverless HLD & LLD