open for work

Hi, I'm Jayakrishna

you can call me JK

Solana · Rust · Infra & Tooling

building s0nar.online, a on-chain network health oracle. backed by Superteam India grants.

systems-focused developer building on Solana. i work primarily in Rust and TypeScript, writing protocol-level programs, async services, and infra tooling.

focused on low-level systems like async runtimes, networking, and distributed systems. i study systems end-to-end by reading source and tracing execution.

built production Anchor programs, on-chain indexers, and gossip network tools.

I mostly work with these

Solana

Rust

Anchor

React

Next.js

Typescript

Javascript

Featured

15 PRs projects

fix: Improved lintinggillsdk/gill merged

feat(scenario): add drift on-chain perp dex V2 scenariotxtx/surfpool merged

Fix: Improve error message for string literals in raw constraintssolana-foundation/anchor merged

Event-Ingestion

Event ingestion system where client-side events, cursor movements, keyboard clicks, and other interactions, are collected and stored in a database. Built in Rust with async I/O and SQLx for database-backed storage.

RustSQLxAsyncPostgreSQL

Matching-Engine

A real-time order matching engine that matches buy and sell orders using an in-memory orderbook.

RustOrder-bookAsyncAPI

Experience

Sanity-Esports

Work

Full-Stack Developer

Jan 2025 — Mar 2025

Built tournament creation, bracket logic, blog/news pages, and OAuth (Google/Discord/LinkedIn). Fixed sign-in API, toasts, dark mode, validation, and backend/frontend bugs.

Solana Turbine

Cohort

Elite Member

Jul 2024 — Present

Q3 2025 builder cohort and Q4 Accelerated. Shipped Anchor programs, security-focused implementations, and on-chain experiments alongside the Turbine community.

Superteam India

Member

Apr 2026 — Present

Inducted as a full-fledged Member of Superteam India. An Elite group of builders for the Solana ecosystem from India.

s0nar

Project

Builder

Apr 2026 — Present

On-chain network health oracle live on devnet. Probes network conditions from four regions (NYC, EU, Asia, Oceania) and writes health attestations on-chain that any program can consume in roughly three lines using a circuit-breaker pattern. 1M+ attestations, 20+ days running unmanned.

Deep Dives

Solana protocol internals: consensus, transport, and networking.

Alpenglow consensus, explained

X threadreposted by @aeyakovenko

Solana Constellation & Multiple Concurrent Proposers

X thread

Recent Blogs

View all

Learning eBPF - Chapter 3: Anatomy of eBPF Programs

Feb 14, 2026·16 min read

An in-depth look at the anatomy of eBPF programs, including their structure, components, and execution flow.

eBPFrustaya+2

Learning eBPF - Chapter 2: How to write eBPF programs

Feb 8, 2026·19 min read

In this chapter, we will learn how to write eBPF programs

ebpfprogrammingrust+1

Deep Dive: Understanding the Aya Project Structure

Feb 6, 2026·5 min read

A detailed guide to understanding the project structure of the Aya library

ebpfrustaya

Achievements

Solana Foundation India Grant

Grant5,000 USDG

Solana Foundation × Superteam India · s0nar

Apr 2026

Awarded by Solana Foundation India Grants to build s0nar - an on-chain network health oracle.

Agentic Engineering Grant

Grant200 USDG

Superteam · s0nar Agent

Apr 2026

Awarded for s0nar Agent - Autonomous Solana Network Health Oracle.

100xDevs Solana Mini Hackathon

Hackathon100 USDCBonus Prize

100xDevs · Slot Mint

Jun 2025

Won a bonus prize at the 100xDevs Solana Mini Hackathon for Slot Mint, a decentralized experience-booking platform with NFT-based slot reservations on Solana.

Let's Connect

available

interested in collaborating, discussing systems, or building something thoughtful? pick a channel below and let's talk.

Twitter / X@jkdotsol

Emailjayak5063@gmail.com

always open to meaningful ideas and long-term work.