# Harshit Jain - Backend Engineer

> Harshit Jain is a backend engineer based in Bangalore, India, specialising in Python, Go, LLM infrastructure and AI guardrails. At LiteLLM (BerriAI, YC W23), Harshit was Guardrails Owner and a release engineer, landing 317 commits and 220 PRs: fixing an unauthenticated RCE in the Custom Code Guardrail, making SSO work across multi-pod Kubernetes deployments by moving PKCE state to Redis, and stopping AWS RDS IAM connection drops with proactive token refresh. Before that: Google Summer of Code 2024 contributor to CloudCV EvalAI, and backend developer at ProQsmart. Open to Founding Engineer and senior backend roles in Bangalore (HSR Layout) or remote.

Open to: Founding Engineer and senior backend roles, Bangalore (HSR Layout) or remote.
Expertise: LLM gateways and proxies, AI guardrails, LLM security, Backend engineering, Distributed systems, Python, Go, FastAPI, Django, Kubernetes, Redis, PostgreSQL, AWS, SSO and authentication, Observability (OpenTelemetry, Prometheus, Datadog, Langfuse), Open source.

## Work
- [BerriAI (LiteLLM)](https://github.com/Harshit28j/litellm-work-portfolio): Backend Developer, Jan 2025 - Mar 2026. Built backend services for a YC-backed AI startup. Developed scalable APIs and microservices using Python and FastAPI. [Read more](https://github.com/Harshit28j/litellm-work-portfolio)
- [ProQsmart](https://proqsmart.com/): Backend Developer, Jun 2025 - Nov 2025. Architected Wefab platform from scratch with AI-driven automation. Delivered 40% efficiency gains, 75% engagement boost, and 90% QA reduction.
- [Google Summer of Code](https://github.com/Harshit28j/GSoC-work): Open Source Developer, May 2024 - Sep 2024. Resolved 35+ critical bugs, raised test coverage to 85%, and built 5 RESTful APIs—improving platform reliability for 1,000+ users. [Read more](https://medium.com/@harshitjain0562/google-summer-of-code-2024-with-cloudcv-aeb58538c4ed)
- [Freelance](https://harshit-profile.vercel.app): Automation Developer, Oct 2023 - Oct 2023. Built an SMS marketing automation engine using PyAutoGUI, reducing campaign execution time by 80% and enabling scalability from 1,000 to 10,000+ users for clients.

## Projects
- [SignGuard](https://www.signguard.co): Email risk-checking API that helps SaaS and AI companies stop free-trial abuse by blocking disposable, newly registered and lookalike email addresses (74,000+ blocked domains). Started as the open-source disposable-email-score Python package.
- [PublishFast](https://publish-fast.vercel.app/): A platform for content creators to create formatted posts and publish across multiple platforms. Built with Next.js, and integrated with social media APIs.
- [Assignment Maker](https://hwrites-ai.vercel.app/): Automated assignment generation tool for educators. Uses AI to create custom questions, answers, and rubrics based on curriculum requirements.
- [Jyotish GPT](https://www.jyotish-gpt.com): AI-powered Vedic astrology app: free kundli (birth chart) generation with instant, LLM-generated predictions.
- [Steganography | Quantum Encryption](https://steg-frontend.vercel.app/): Secure data hiding using steganography and quantum encryption principles.
- [Grocery Product Detection](https://github.com/Harshit28j/grocery_product_detection): AI project for detecting grocery products.
- [AI-Interview-Agent](https://github.com/Harshit28j/ai_interview): AI agent to conduct interviews.
- [Lens On Wellness](https://github.com/Harshit28j/lens_on_wellness): AI-focused project for wellness tracking.
- [Instagram Content Automation & Telegram Affiliate Bot](https://github.com/Harshit28j): Bot to automate Instagram content creation and telegram affiliate marketing.
- [Gmail Screenshot Automation Bot](https://github.com/Harshit28j): Automated tool to take screenshots of emails.

## Contact
- Email: harshitjain0562@gmail.com
- Portfolio: https://harshit-profile.vercel.app
- GitHub: https://github.com/Harshit28j
- LinkedIn: https://www.linkedin.com/in/harshitpy/
- X: https://twitter.com/harshit_py
- Youtube: https://www.youtube.com/@harshit_ai

## Optional
- [Full profile](https://harshit-profile.vercel.app/llms-full.txt): Complete experience, skills, education and writing
- [Blog](https://harshit-profile.vercel.app/blog)