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Abdelrahman Sheta

@abdelrahmansheta

Product engineer at Cravit building a multi-tenant restaurant SaaS platform that processed 38,000+ orders and grew GMV 68%.

Egypt

Message

At Cravit, I architected and scaled a multi-tenant restaurant SaaS platform that processed 38,000+ orders and grew GMV by 68% over six months. I optimized backend and database performance, built Next.js dashboards with real-time updates, and developed AI features for recommendations, forecasting, and anomaly detection.

At Rafeeq, I built an AI platform with model routing, retrieval, and memory, alongside bilingual product workflows. Earlier, I engineered Web3 products at STYLE Protocol and audited smart contracts at Nethermind, where I discovered two high-severity DeFi vulnerabilities.

Experience

Work history, roles, and key accomplishments

Current

Product/GTM Engineer (Founding Team)

Current

Rafeeq

Jul 2026 - Present (3 months)

• Own product and GTM for Rafeeq's B2C learning and B2B school products, from ICP, positioning and pricing through roadmap priorities, releases, demos and partnerships.
• Built and led the FastAPI AI platform with model routing and fallbacks across OpenAI, Anthropic and Gemini, plus Qdrant retrieval, Redis session state, long-term memory, usage metering and tenant controls.
• Built a bilingual Nex

Current

Founding Engineer

Current

Cravit

Jun 2025 - Present (1 year 4 months)

Architected and scaled a multi-tenant restaurant SaaS platform built with NestJS, spanning 500+ REST APIs, 45 modules, 430+ TypeScript files, 22 business domains, and 235 Prisma models across 27 schema files. Optimized backend and database performance to achieve 43% lower API response times, 58% faster heavy queries, 61% faster average query execution, 38% lower DB CPU usage, 82% cache hit rate on

Full Stack Engineer (Web3)

STYLE Protocol

Jun 2024 - Jun 2025 (1 year)

Engineered a highly responsive frontend utilizing Nxt.js, resulting in a 30% rise in user engagement an a 20% reduction in page load times, significantly ehancing the overall user experience.

Developed backnd systems with Next.js server API, achieving a 25% ecrease in server response time, improving applicatin performance and responsiveness.

Deployed 6 smart ontracts on Ethereum mainnet, Arbitru

Smart Contract Auditor

Nethermind

Mar 2024 - Jun 2024 (3 months)

Discovering two high-severity vulnerabilities in decentralized finance (DeFi) protocols.
Conducting comprehensive security audits on seven smart contract projects across multiple blockchain platforms, including Ethereum and Starknet.
Performed an in-depth audit of smart contracts for the Puffer Protocol, safeguarding a liquid staking solution with a total value locked (TVL) exceeding $1.2 billion.

Web3 Developer

Rhodes Academy for the Creative Arts, INC.

Nov 2023 - Mar 2024 (4 months)

-Implemented a decentralized identity system, seamlessly onboarding 1000+ users and reducing administrative overhead by 30%.
-Led the development of a cutting-edge virtual gallery on the blockchain, featuring 500+ unique student artworks as NFTs.
-Successfully integrated a decentralized finance system, allowing 600+ students to pay tuition fees using cryptocurrency.

Ethereum Developer

Metana

Oct 2023 - Dec 2023 (2 months)

*Demonstrated expertise in smart contract security and blockchain architecture across L1, L2, and L3 Ethereum blockchains.
*Extensive hands-on experience with DEFI protocols, including Uniswap v2 and v3, Maker, Curve, AAVE, DyDx, and Compound.
*Successfully completed security challenges such as Ethernaut, Damn Vulnerable DeFi, and Capture The Ether, showcasing a commitment to continuous learning,

Full Stack Engineer

EJADA

Feb 2023 - Oct 2023 (8 months)

Full Stack Web Intern { Angular | Spring Boot | MySql }
Responsibilities:

Architected Web Applications with Angular and Spring Boot: I was responsible for designing and implementing the architecture of web applications, specifically utilizing Angular and Spring Boot.

Managed MySQL Databases: My role included managing MySQL databases. This encompassed tasks such as data modeling, optimization, an

Blockchain Developer

Alchemy University

Aug 2023 - Sep 2023 (1 month)

Blockchain Student { Ethereum | Solidity }
Responsibilities:
Blockchain Development: Design, develop, and implement blockchain solutions, including smart contracts and decentralized applications (DApps), using blockchain platforms such as Ethereum, Binance Smart Chain, or others.

Security and Compliance: Ensure the security and compliance of blockchain systems, addressing vulnerabilities and pote