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Achievement: Pair Extraordinairex4Achievement: Pull Sharkx4Achievement: QuickdrawAchievement: YOLOAchievement: Arctic Code Vault Contributor

Achievements

Achievement: Pair Extraordinairex4Achievement: Pull Sharkx4Achievement: QuickdrawAchievement: YOLOAchievement: Arctic Code Vault Contributor

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bin-umar/README.md

Senior Software Engineer · Backend Systems · Fintech · Web3

Senior Software Engineer II at Tools for Humanity in Munich, Germany. I build backend systems around payments, rewards, identity and notifications, combining hands-on implementation with architecture and cross-team delivery.

My earlier work spans large-scale consumer email and identity products, Lido's Solana liquid staking at P2P.org, and full-stack development of the Ottr Finance Solana wallet, including mobile, backend and fintech functionality.

Website · LinkedIn

What I work on

  • Backend systems — TypeScript, Node.js and NestJS; APIs, asynchronous processing and production infrastructure on AWS.
  • Payments & product infrastructure — referrals, rewards, payouts, notifications and identity/verification integrations.
  • Web3 — Solana wallets, liquid-staking integrations and SDK development.
  • Across the stack — React, Next.js and React Native, with experience connecting product interfaces to the services behind them.

Pinned Loading

  1. TechnoparkDB TechnoparkDB Public

    TypeScript

  2. Algorithms Algorithms Public

    C++ 1

  3. Highload2_TP Highload2_TP Public

    Решение ДЗ-№2 по курсу HighLoad

    Shell 1

  4. HighLoad_TP HighLoad_TP Public

    Решение задачи по курсу HighLoad

    C++

  5. http-proxy http-proxy Public

    HTTP/HTTPS-proxy in Node.js

    JavaScript 1

  6. AskImam AskImam Public

    First Django educational project

    Python 1