Sarthak Shah

backend / smart contract engineer

I'm a Founding Engineer at MetEngine .

I love working with financial systems, quantitative research, game theory and mechanism design. You'll find me building elaborate backend systems, smart contracts, and low-latency distributed infra as weekend gigs.

I enjoy participating in hackathons and have won ~20 of them. Also, in my free time, I obsess over cameras, drones, and bikes.

Links: [LinkedIn] [Twitter] [GitHub]

Projects

gossip-toy — reimplementing toy version of solana's gossip protocol from scratch

aqua — load testing tool for benchmarking solana nodes over rpc and grpc

pinocchio squads v4 — squads v4 multisig rewritten in pinocchio

anchor turbin3 — minimal solana programs built during turbin3 builders' cohort

curators — identifies high-performing LSTs on solana and auto-swaps to optimize yield.

predictify — polymarket telegram bot — 2.5k+ users, $100k+ volume.

hunch — social trading platform for creating and trading onchain markets on viral content.

ticker — a farcaster mini-app to buy rwa assets onchain ($10k+ in volume)

solana security dashboard — track hacks, exploits, and vulnerabilities in the solana ecosystem.

simd.live — a readable index of every solana improvement document

pintel — precision prediction market using gaussian probability distribution

cyfrin evm — lil projects i built while watching cyfrin's solidity course

ticket booking cli — a simple cli ticket booking app in golang

Work

MetEngine [june 2025 – present] — founding engineer

researched across defi verticals like liquidity providing, lending & borrowing, yield-bearing vaults, and launchpads
built 3ms data pipelines — parsing (manual, codama, carbon), indexing (yellowstone grpc), and historical backfilling (jetstreamer firehose)
built backend microservices in axum (rust) and typescript
owned deployments, ci/cd, and the entire monitoring, observability and aws infrastructure
set up nginx as a reverse proxy for backend microservices
ensured scalability and reliability with kafka, redis, docker, clickhouse, and postgresql — achieving ~95% stable uptime while handling multiple GBs of data per day
built ui for chrome extension (2.2k users in 3 weeks, 90 paid) and optimised webapp frontend ($114.25m volume managed, $100k arr)

Gasyard [jan 2025 – may 2025] — full stack developer

co-built the fastify backend with a team of 5 (docker, postgresql), handling $570k volume across 120k requests in 5 months
wrote integrations from scratch for hyperliquid, movement, monad, and other evm/non-evm chains, often pre-sdk on the newer ones
shipped a public-facing bridge explorer for transaction tracking
built fuelbae, an ai agent executing defi actions across aave, uniswap, hyperliquid, and curve

0rbit (acq. by forward research) [mar 2024 – dec 2024] — full stack developer

shipped the lua smart contracts powering 0rbit's oracle alongside 3 other developers, making it the first protocol live on AO and bringing any price feed, data feed, or api onto AO (arweave's actor-oriented compute layer)
one of the first 10 builders on AO in its earliest days
battle-tested 0rbit's node pre-launch, surfacing edge cases and stability issues before mainnet
authored 4 developer tutorials with working demo apps to onboard new builders to the ecosystem

& previously: 2x other startups and 3x freelance clients