Senior Full-Stack Engineer · Founder, Xholic AI

Sahil
Jain.

I build consumer and B2B products, from system design and AI integrations to launch, performance, and growth.

Noida, IndiaAvailable for remote & contract work
Portrait of Sahil Jain
6+ years of product engineering
6+years shipping consumer and B2B products
100M+Beebom’s monthly audience across its platforms
+45%acquisition growth from Datacy’s referral program
0 → PaidXholic AI, built solo and launched with early paying users

02

Experience

6+ years building consumer and B2B products across AI SaaS, media, fintech, and education.

Jan 2026 - Present

Founder & Full-Stack Engineer

Xholic AI

Founded and built Xholic as its sole engineer, from product definition and UX to launch and daily operation. Shipped personalized AI workflows, X OAuth, Stripe subscriptions, usage controls, and background jobs; used PostHog and customer feedback to guide improvements.

May 2025 - Dec 2025

Software Development Engineer II

Beebom

Built Next.js and React features for a technology media brand reaching 100M+ users monthly across its platforms. Designed Node.js APIs and PostgreSQL workflows with Redis caching, and improved performance and search visibility from technical design through release.

Jan 2023 - Mar 2025

Full-Stack Engineer

Datacy Inc.

Led React and Node.js platform development, contributing to 30% growth in monthly active users. Built the referral program that increased acquisition by 45% and a Next.js website rebuild that improved Core Web Vitals by 50% and lowered bounce rate by 22%.

Nov 2021 - Oct 2022

Full-Stack Developer

Parallel Finance (now Nirvana Finance)

Built React interfaces for Polkadot and Kusama crowdloans, a money market product, and the Parallel Wallet extension. Integrated Ledger transaction signing and asset imports, and created reusable design system components with Storybook.

Jul 2020 - Oct 2021

Full-Stack Developer

Coding Elements

Maintained a React and Firebase learning platform and operations dashboard. Built scheduling, certificate, and course-tracking tools, created integration APIs, and connected course modules with India’s Atal Tinkering Labs program.

Sep 2019 - May 2020

Full-Stack Web Developer Intern

RedCarpetUp.com & VAYUZ Technologies

Built customer funnels, reward and claim-processing workflows, Python and Flask APIs, Meteor.js applications, and production UI across two internships.

Need the detailed version?

Download the full résumé

03

What I bring

Product thinking with enough engineering depth to carry the idea all the way through.

01

Product engineering

System design, data modeling, frontend and backend development, authentication, payments, analytics, and production delivery with one accountable owner.

02

AI engineering

LLM applications, RAG, embeddings, vector search, prompt engineering, and tool calling, with experience shipping personalized AI workflows in a paid SaaS product.

03

Performance & growth

Core Web Vitals, SEO, server rendering, caching, image optimization, referral programs, and product analytics to improve acquisition and the user experience.

I work best with product-focused teams that value ownership, thoughtful engineering, fast iteration, and measurable outcomes.

More about how I work