Headline

Software Engineer (Python · FastAPI · Django) | Integrating LLMs into production APIs | AWS · Redis · Celery | 4+ yrs shipping real systems

About

I don't just write code - I build backend systems that scale, and increasingly, systems that think. With 4+ years in Python backend engineering, I've shipped production APIs in Django and FastAPI, optimized databases, managed async pipelines with Celery, and deployed on AWS. Now I'm adding the layer that every product team is asking for: LLM & Gen AI integration. 🔧 What I build: • REST APIs in Django/DRF and FastAPI — designed for scale, not just demos • AI-powered features using OpenAI, Claude, and LangChain — integrated into real backends • RAG pipelines connecting LLMs to live data via vector search (s3 vector, Pinecone) • Async task queues with Celery + Redis for heavy AI workloads • Cloud deployments on AWS — EC2, S3, RDS — production-hardened The reason I got into Gen AI isn't hype — it's because the gap between "a cool AI demo" and "a reliable AI feature in production" is a backend problem. And that's exactly what I solve. At Crest Infosystems (L3), I own full feature lifecycles. Before that, I built and iterated on production software across multiple stints at TECHstile - which taught me that systems need to survive real usage, not just impress in a code review. 🤝 If you're building AI-powered products and need a backend engineer who bridges Python expertise with Gen AI integration - let's talk. 📩 DM me or comment on any post. Always happy to connect. Other Profiles : 🔹GitHub - https://github.com/bharatphalak11 🔹HackerRank - https://www.hackerrank.com/bharatphalak11

Location

Pune Division

AI stack

gemini

langchain

mcp

openai

Work experience

Software Engineer - L3 at Crest Infosystems Pvt. Ltd., Feb 2025 - Present · 1 yr 6 mos, Surat, Key Contributions as a Software Engineer - L3 at Crest Infosystems Pvt. Ltd.: - Developed and maintained backend systems using Django, Flask, and FastAPI, delivering high-performance APIs for scalable applications. - Designed and implemented ETL pipelines capable of processing millions of records, enabling seamless data transformation and reporting via Azure Synapse, Microsoft Fabric, Power BI and Amazon QuickSight. - Contributed to cutting-edge AI-powered projects including Q\&A systems, intelligent data-driven suggestions, and interactive AI integrations. - Integrated and deployed MCP Client/Server modules to manage data flow and ensure accurate responses across applications. - Leveraged LLMs such as OpenAI, Claude. Optimized context management and reducing conversation history size by 40 percent. - Developed an interactive AI application for practicing script scenes, allowing users to rehearse dialogues powered by generative AI.

Software Developer & Site Reliability Engineer at TECHstile, Apr 2023 - Feb 2025 · 1 yr 11 mos, Surat, Gujarat, India, As a Backend Developer and Site Reliability Engineer (SRE) at TECHstile, my daily responsibilities included: - Understanding and implementing complex requirements for business-critical features. - Diagnosing and fixing live production bugs to maintain system stability. - Managing server infrastructure to ensure seamless deployment and uptime. - Building scalable and robust system architectures and APIs using Python Django & REST framework. - Designing efficient and fast reporting systems by optimizing queries and utilizing caching techniques. - Implementing distributed locking for files and critical code using caching, ensuring data integrity. - Monitoring and automating server-side scripts to enhance reliability and performance. - Developing a dynamic PDF generation system for invoices, ensuring accuracy and customization. - Implementing feature functionalities for clients, enhancing user experience and satisfaction. - Designing and implementing a system for uploading files to Amazon S3, ensuring secure and efficient file handling.

Software Developer at TECHstile, Mar 2022 - Apr 2023 · 1 yr 2 mos, Surat, Gujarat, India, As a Backend Developer at TECHstile, my daily responsibilities included: - Understanding new functionalities and requirements. - Planning, implementing, testing, and deploying on servers. - Fixing production/live bugs. - Building scalable and robust APIs using Python Django & REST framework. - Optimizing database queries and code. - Enhancing the reporting system with caching and Celery, among other tools

Software Developer Intern at TECHstile, Dec 2021 - Feb 2022 · 3 mos, Mumbai, Maharashtra, India

Django Developer at Droid7 Technolabs, Aug 2021 - Dec 2021 · 5 mos, Pune, Maharashtra, India, Worked as Full Stack Developer, My Responsibilities in Droid7 :- - Understand requirements and implement in system. - Plan, Implement, Test and Deploy on servers. - Give requirement understanding to other 2 devs. - Develop web UI - Fix live bugs

Python at Pie Infocomm Pvt. Ltd., Jun 2021 - Aug 2021 · 3 mos, Lucknow, Uttar Pradesh, India

Education

Master of Computer Applications - MCA, Computer Application, Gokhale Education Society's R. H. Sapat College of Engineering, Management Studies and Research

Bachelor of computer application, VBES'S SANT MUKTABAI ARTS & COMMERCE COLLEGE, MUKTAINAGAR.