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Hi, I'm Sahil

From LLM orchestration to model security: the systems that keep AI products fast, cheap and safe.

cachellm landing pagecachellm: the problem it solvescachellm: how it workscachellm on GitHubcachellm READMEcachellm README on npmcachellm-py on PyPIRedSec-14B on Hugging FaceRedSec-7B on Hugging FaceRedSec-7B v1.1 on Hugging Face
RedSec red-team database datasetRedSec security SFT datasetRedSec offensive payloads datasetRedSec distillation datasetNeural Arc: Helium One and ModelBeatMCP Apps sandbox writeupMCP Apps writeup: trust boundariesMCP Apps writeup repositorySahil on GitHubNeural Arc

Capabilities

05 areas

  • LLM Systems

    Orchestration, tool calling, memory, and RAG pipelines that turn a model into a product, with cost and latency budgets built in from day one.

  • Agent Workflows

    Multi-agent architectures for enterprise use cases, owned end to end from research and prototyping to production deployment and monitoring.

  • AI Security

    Red-team testing, prompt-injection evaluation, and security-specialized models built for authorized penetration testing and defensive research.

  • Full-stack Apps

    Next.js, TypeScript, and Python applications with Supabase, Stripe billing, and Dockerized backends on AWS or GCP.

  • Data Engineering

    ETL pipelines, dataset curation, and evaluation harnesses that keep training data clean and models honest.

Selected work

Open source

Fixes I have sent upstream to projects I use, and the repositories I maintain in the open.

Upstream contributions

  1. eclipse-theia/theia

    Cloud and desktop IDE framework

    Fixed remote edits landing at the wrong position in live collaboration

    MergedOct 2026

    When a collaborator's change contained more than one edit, every edit after the first insert or delete was applied at a displaced offset. I corrected how the Yjs delta is walked against the document before the edit, moved it into its own module and added tests.

    View pull request
  2. anthropics/claude-code-action

    Claude Code for GitHub Actions

    Made the label trigger match without regard to case

    MergedAug 2026

    A workflow set to trigger on one label did not fire when the label on the issue differed only in capitalisation. GitHub treats label names as unique without regard to case, so the comparison now does too, with a test covering it.

    View pull request
  3. eclipse-theia/theia

    Cloud and desktop IDE framework

    Stopped the metrics endpoint emitting invalid output at startup

    In reviewOct 2026

    For the first ten seconds after the backend starts, the metrics endpoint included the literal text undefined, which is not valid Prometheus format. The fix initialises the plugin metrics and guards the concatenation, with tests for both.

    View pull request
  4. FreedomScientific/standards-support

    Screen reader support tests for web standards

    Added aria-level coverage to the HTML test page

    MergedMay 2023

    A small addition to the suite that tracks how JAWS handles web standards.

    View pull request
  5. mdn/interactive-examples

    Live code examples on MDN Web Docs

    Completed the tab-size example for the CSS reference

    MergedMar 2021

    My first merged pull request to a widely used project, reviewed by the MDN team.

    View pull request

Also maintained

Experience

  1. Neural Arc Inc

    Pune, on-site

    • Lead of Cognitive Intelligence

      Jul 2025 - Present

      Designing generative AI systems and multi-agent architectures for enterprise customers and owning them from prototype to production: LLM orchestration, tool calling, memory, RAG, Dockerized backends on AWS and GCP, and usage-based billing with Stripe.

    • Quantum Coder

      Mar 2025 - Jul 2025

      Core LLM features and agent workflows for early-stage AI products, with the backend APIs and cloud deployments behind them.

  2. Ampersand

    Pune, on-site

    • SDE I

      Mar 2025 - Present

      AI-powered web and app features across the stack with React, AWS and modern backend frameworks. Promoted from intern on the strength of delivery and ownership.

    • AI and App Development Intern

      Dec 2024 - Feb 2025

      Frontend components, backend APIs and cloud services for AI-integrated application features.

  3. LvlUp Ventures

    Remote

    • Venture Scout

      Oct 2025 - Present

      Sourcing and evaluating early-stage startups for the fund.

  4. IndiaResults.com

    Jaipur, on-site

    • Data Engineer Intern

      Jun 2023 - Aug 2023

      Data processing and ETL pipelines on production datasets.

  5. Fastlegal

    Jaipur, remote

    • Data Engineer Trainee

      Jan 2023 - Feb 2023

      Data integration and ETL work.

Jaypee University of Engineering and Technology

B.Tech, Computer Science, 2020 - 2024

  • Oracle Agentic AI Certified Foundations Associate
  • Goldman Sachs Software Engineering Virtual Program, 2023

Profile

Sahil Gupta
AI EngineerPune, India

With more than two years of shipping AI products, I focus on LLM orchestration, agent workflows, and the infrastructure that keeps them fast, cheap, and safe. I lead Cognitive Intelligence at Neural Arc and build open-source tools like cachellm and RedSec. Let's build something incredible together!

Works with

  • Large language models
  • LLM orchestration and agent workflows
  • Retrieval-augmented generation
  • Prompt caching
  • AI security and red teaming
  • Fine-tuning with QLoRA
  • Next.js and TypeScript
  • Python
  • Data engineering

Contact

Open to collaborating on AI infrastructure, agents, and security tooling.

Contact Me