Engineer · Builder · Operator
AbhishekChakram
I build the data infrastructure and AI agents that turn noise into revenue.
Proof, in numbers
Invested in Fiber AI by HubSpot’s CTO↗
Dharmesh Shah wrote a $290K angel check into Fiber after testing the AI search agent I built, ~6× his typical $50K check.
Annual revenue driven
From data systems I built and reverse-engineered for enterprise customers.
Billing infra throughput
Built from scratch: 50M+ credits processed, multi-tier costs, native Stripe.
Global rank, CodeChef
Out of 40,000+ competitive programmers worldwide.
The thesis
Most engineers build the layer people see. I build the one underneath it.
The data plumbing that decides whether an AI product is fast, correct, and trusted in production. I’m drawn to problems that are locked, undocumented, or written off as impossible, and I ship the infrastructure that quietly carries the business.
Give me the part of the stack everyone else avoids.
Data infrastructure · AI agents
Selected work
Things I shipped that moved money.
AI Search Agent●
Natural-language search for people and companies, handling both broad and deeply niche prompts. The product that convinced HubSpot’s CTO to write a $290K check and grew to 60+ customers, including agent.ai.
Reverse-Engineering the GTM Data Stack
Reverse-engineered Sales Navigator to scrape millions of profiles and LinkedIn’s follower graph, turning locked data into productized pipelines that enterprise customers pay for monthly.
Billing Infrastructure
Designed and shipped Fiber’s billing engine from zero: a credits system sustaining 4,000 RPS, multi-tier cost accounting, and native Stripe integration that the rest of the business now runs on.
Jared
An autonomous email agent for recruiters: drip sequences with reply detection that halts follow-ups, GPT-classified responses, and an auto-referral loop that enrolls referred contacts on its own.
Clan
Built joinclan.ai end-to-end, solo. The team later hired a full-time CTO and kept me on as Technical Advisor to steer architecture.
The path
How I got here.
Fiber AI (YC S23)↗
Senior Software Engineer
Data infrastructure for AI pipelines: search agents, scraping, billing.
Recognition & rank
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