Full Stack Web3 Developer (Solidity & React)

MOHAMMED SOLIMAN

Full Stack & Web* Developer React, TypeScript, Node.js, Python, Solidity

Cairo, Egypt +20-102-***-**** **************@*****.*** GitHub LinkedIn X @MohammedSolly05 Medium SUMMARY

Computer Science student and full stack developer, with one year of English-language technical support at AT&T behind me, building and testing EVM smart contracts in Solidity and Foundry. I explain technical problems in plain, clear language, read carefully, and look for the edge case first, with a security-first habit: checks-effects-interactions, reentrancy guards, fuzz and invariant tests, Slither, and written security reviews that state their own limitations. Ten public blockchain projects, most deployed and verified on Sepolia, including a token vesting dApp. I have started learning Rust and Solana, and have deployed Solidity to Soroban testnet 100+ times through Solang. I write publicly (a 90-day Solidity/Web3 build log on GitHub, LinkedIn, X and Medium) and use AI coding tools daily while reviewing the generated output critically. I build end to end, from spec to deployment: React/TypeScript front ends with wallet and embedded-wallet login, Python and Node.js back ends with REST APIs, Git/GitHub workflows with CI, and live deployments on Vercel and Sepolia. I take ownership of what I build and learn new tools independently. SKILLS

• Customer support: English-language technical troubleshooting, CRM case logging and clear case notes, escalation with full context, explaining complex issues simply, bug reporting and edge-case testing, written documentation (GitHub, Medium).

• Web3 knowledge: wallets, transactions and gas, token vesting and escrow flows, ERC-20 / ERC-721, ENS, Sepolia, Web3 wallet security, ZK proof basics. Started learning: Rust, Solana.

• Smart contracts: Solidity, Foundry (forge, cast, anvil), EVM fundamentals, OpenZeppelin, ENS (ENSIP-10 resolvers), Sepolia deployment and Etherscan/Sourcify verification.

• Security & testing: Slither, fuzz and invariant testing, adversarial mock tokens, reentrancy and CEI analysis, coverage gates, security-review write- ups.

• Full stack: TypeScript, JavaScript, HTML/CSS, React, wagmi/viem, RainbowKit, Privy (authentication and embedded wallets), Vite, Node.js, Python

(FastAPI, Flask), REST APIs, Angular, MongoDB, SQLite, Git/GitHub, GitHub Actions CI, Vercel.

• Development practices: spec-first development, automated testing and debugging, CI-gated deployments, rapid prototyping (ETHGlobal ETHOnline 2026), AI-assisted development with critical code review, independent learning and ownership of features end to end.

• Tools: CRM systems, Microsoft Excel, Google Sheets, Microsoft Word, GitHub.

• Languages: Arabic (native), English (C1).

EXPERIENCE

Advanced Technical Support Agent AT&T (English-language support) — 1 year

• Diagnosed and resolved customer issues directly, logging every case in the CRM and escalating with full context; stayed clear and calm under pressure.

• Wrote clear, accurate case notes in English and kept customer records complete, consistent and up to date in the CRM. Backend AI Engineering Intern FlyRank (Remote)

• Built REST APIs in Python and FastAPI with Pydantic validation, correct HTTP status codes and full CRUD, following a structured backend/AI engineering roadmap.

PROJECTS

TokenVesting ERC-20 vesting dApp (Solidity, Foundry, React, wagmi) — GitHub · Live

• Factory contract with cliff and 90-day interval vesting; schedules are created atomically (funds pulled in the same transaction) and fee-on-transfer tokens are rejected by a balance-delta check.

• 62 Foundry test functions (unit, fuzz, invariant, adversarial tokens) behind a 95% coverage gate, 211 frontend tests, CI on every push; contracts verified on Etherscan and Sourcify. Wrote a security review (reentrancy analysis, Slither, gas, overflow bounds, known limitations); built spec-first with GitHub Spec Kit.

Tokenized Vault ERC-4626-style vault dApp (Solidity, Foundry, React, wagmi) — GitHub · Live

• Vault with non-transferable shares priced by balance / total supply, a 1000-base-unit dead-shares guard against first-depositor inflation attacks, and a 24-hour cooldown faucet token; both contracts verified on Etherscan (Sepolia).

• Strict-TypeScript wagmi v2 / viem front end with a live event feed and wrong-network handling; spec-first, CI-gated on tests, typecheck, lint and build.

Handshake P2P escrow, ETHGlobal ETHOnline 2026 (Solidity, Foundry, Privy, ENS) — GitHub · Showcase

• Two-party escrow with staked collateral and a created, funded, active, completed/disputed, settled state machine; 18 passing tests; deployed to Sepolia.

• Built an ENSIP-10 wildcard resolver that reads the contract live on every query, added Privy embedded-wallet login with real signed transactions, and ran the full deal lifecycle on Sepolia between two wallets. CrowdFund crowdfunding dApp (Solidity, Foundry, React) — GitHub

• Turns contract reverts into plain-English messages and validates input before any transaction; 195 tests (contracts, unit, end-to-end) running in CI. Dutch Auction (64 Foundry tests, 0 Slither findings) · English Auction (305 automated tests, 100% line coverage on contracts) · Escrow Smart Contract

(25 Foundry tests, wagmi dashboard on Sepolia)

Also: ERC-20 Token dApp (capped supply, role-based access control, pausable transfers, EIP-2612 permit; live on Sepolia); ERC-721 NFT contract in Foundry; wagmi counter dApp; Solidity-to-Soroban deployment challenge (Solang, Stellar CLI); cryptography toolkit (AES, SHA-512, RSA from scratch). EDUCATION & CERTIFICATIONS

B.Sc. Computer Science Menoufia University

Cyfrin: Solidity Smart Contract Development; Zero-Knowledge Proofs; Web3 Wallet Security Basics; Blockchain Basics; Chainlink Fundamentals ETHGlobal: ETHOnline 2026 participation certificate (Handshake) NTI / ITIDA: MEAN-Stack Web Development summer training

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