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Achievement: StarstruckAchievement: Pull Shark

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JumpCodeFrog/README.md

Thomas Rosenstein — Go and C++ systems engineer focused on low-latency backends, Linux and kernel-side I/O.

Public work first. uring-kv is the main read: an async TCP key-value server where accept, recv, and send are submitted through io_uring, with no epoll and no blocking syscall on the hot path.

Everything presented as evidence below is available in a public repository. No unpublished throughput or latency claims.

$ ls -l ~/public --featured

uring-kv — async TCP key-value server on io_uring. C++20, CMake, liburing, MIT.

$ ls ~/public --secondary

telegram-shop-bot — open-source Telegram storefront in Go with embedded SQLite and Telegram Stars payments. aipf — async Python toolkit for investigating OpenAI-compatible API proxies.

go-market-watcher — Go CLI price watcher with PostgreSQL history and Docker Compose deployment.

Also public: dpowcoin, a Bitcoin Core-derived C++ fork. Most of that tree is upstream, so it remains visible as a repository but is excluded from the language panel below. This profile repository contains every static SVG used on this page.

$ stack --installed

Installed toolchain: Go, C++20, Python, Rust, io_uring, Linux, systemd, GitHub Actions, PostgreSQL and Docker.

Working principles: read the syscalls, delete the fallback, prefer boring deploys and ship the operational paperwork.

$ activity --snapshot

Repository and activity metrics for JumpCodeFrog, generated daily as a static SVG. Most-used languages across JumpCodeFrog repositories, excluding the upstream-heavy dpowcoin fork.

$ activity --contribution-grid

JumpCodeFrog contribution grid rendered as an amber snake animation.

Contact Thomas Rosenstein on Telegram at JumpCodeFrog or by email at thomasrosenstain at gmail dot com.

telegram  ·  email

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  1. uring-kv uring-kv Public

    Async TCP key-value server built on io_uring — no epoll, no Boost, no blocking syscalls

    C++

  2. fintech-payment-engine fintech-payment-engine Public

    Concurrency-safe payment ledger in Go — PostgreSQL, gRPC, exact money, idempotent replay, Transactional Outbox, and Kafka

    Go

  3. telegram-shop-bot telegram-shop-bot Public

    Open-source Telegram shop bot in Go — catalog, Stars & USDT payments, subscriptions, Mini App, admin panel · Telegram-магазин на Go — каталог, оплата Stars и USDT, подписки, Mini App и админ-панель

    Go 22 10

  4. aipf aipf Public

    API Proxy Forensics Toolkit for OpenAI/Anthropic-compatible LLM proxies

    Python 2

  5. go-market-watcher go-market-watcher Public

    CLI price watcher for Wildberries built with Go and PostgreSQL

    Go 1