Muhammad Zaeem K.

𝗦𝗲𝗻𝗶𝗼𝗿 𝗯𝗮𝗰𝗸𝗲𝗻𝗱 𝗲𝗻𝗴𝗶𝗻𝗲𝗲𝗿 𝘄𝗶𝘁𝗵 𝟭𝟲+ 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗵𝗮𝗻𝗱𝘀-𝗼𝗻 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲. I also ship mobile (Flutter, React Native, Kotlin, Swift) and web (React, Next.js, NestJS) through AI-assisted workflows using Codex, Claude Code, and Cursor. 𝗛𝗼𝘄 𝗜 𝘄𝗼𝗿𝗸 𝘄𝗶𝘁𝗵 𝗖𝗹𝗮𝘂𝗱𝗲 𝗖𝗼𝗱𝗲 Claude Code is my daily driver, with Codex as a second reviewer. AI makes me fast; the process around it keeps the work safe: • 𝗦𝗽𝗲𝗰 𝗳𝗶𝗿𝘀𝘁: anything over 30 minutes becomes a short written plan with pass/fail criteria that you approve before I build. • 𝗧𝗲𝘀𝘁𝘀 𝗯𝗲𝗳𝗼𝗿𝗲 𝗰𝗼𝗱𝗲: each feature arrives with automated tests proving it works, built on its own branch so unfinished work never touches your live product. • 𝗥𝗲𝗮𝗹 𝗿𝗼𝗼𝘁 𝗰𝗮𝘂𝘀𝗲𝘀: when something breaks, I find and prove the cause before changing anything. • 𝗧𝘄𝗼-𝗺𝗼𝗱𝗲𝗹 𝗿𝗲𝘃𝗶𝗲𝘄: every change is reviewed by Claude, then Codex looks for what Claude missed, then I review it myself. • 𝗗𝗼𝗻𝗲 𝗺𝗲𝗮𝗻𝘀 𝘃𝗲𝗿𝗶𝗳𝗶𝗲𝗱: nothing is "done" until I've run it and seen it work. Risky or permanent actions (data changes, deploys, migrations) always wait for my decision, and secrets never leave your environment. • 𝗖𝘂𝗿𝗿𝗲𝗻𝘁 𝗱𝗼𝗰𝘀, 𝗻𝗼𝘁 𝗔𝗜 𝗺𝗲𝗺𝗼𝗿𝘆: code is written against today's official documentation. 𝗪𝗵𝗮𝘁 𝗜'𝘃𝗲 𝗯𝘂𝗶𝗹𝘁 𝗮𝗻𝗱 𝘀𝗵𝗶𝗽𝗽𝗲𝗱 • 𝗡𝗲𝗼𝗻𝗢 (multi-tenant salon & spa SaaS): 700+ commits on the core platform. Hardened Postgres security across 79+ RLS policies and 83 SECURITY DEFINER functions, built the supplier dropship pipeline and the data-migration wizard, and added CI guardrails that block unsafe migrations before merge. • 𝗣𝘁 𝗣𝗮𝗹 (HIPAA therapy platform): rebuilt the Power BI outcome reports as role-based dashboards, rolled out Sentry behind a patient-data scrubbing gate (surfacing 26 swallowed exceptions), and added Android Health Connect sync. • 𝗪𝗶𝗻𝗥𝗲𝘀𝘁 𝗣𝗢𝗦: Uber Eats, Clover, Moneris GO and SkipTheDishes integrations inside a long-running C# .NET product. • 𝗚𝗿𝗼𝗰𝗲𝗿𝗞𝗲𝘆 (US grocery e-commerce, 10+ retailers on one codebase): ASP.NET Core CQRS APIs, EF query fixes that ended peak-traffic timeouts, Stripe, RabbitMQ, ElasticSearch, SignalR. • 𝗣𝗲𝗽𝘀𝗶 𝗯𝗼𝘁𝘁𝗹𝗲𝗿 𝘀𝗮𝗹𝗲𝘀 𝗠𝗜𝗦: year-end closing cut from 2+ days to under 1 hour by reworking it in T-SQL. • 𝟯𝟱+ 𝗺𝗼𝗯𝗶𝗹𝗲 𝗮𝗽𝗽𝘀 shipped to the App Store and Play Store (Flutter, React Native, Kotlin, Xamarin). • 𝟲 𝘀𝗲𝗹𝗳-𝗽𝘂𝗯𝗹𝗶𝘀𝗵𝗲𝗱 𝗖𝗵𝗿𝗼𝗺𝗲 𝗲𝘅𝘁𝗲𝗻𝘀𝗶𝗼𝗻𝘀 (ScreenSolver with OpenAI vision API, Daraz Smart Shopper, Upwork Job Insights, and more). 𝗖𝗼𝗿𝗲 𝘀𝘁𝗿𝗲𝗻𝗴𝘁𝗵𝘀 • 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲: CQRS, DDD, SOLID, Clean Architecture, Repository Pattern, Microservices, Event-Driven • 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀: SQL Server, Supabase and Postgres: SQL, stored procedures, query tuning, indexing, performance optimization • 𝗣𝗮𝘆𝗺𝗲𝗻𝘁𝘀 & 𝗣𝗢𝗦: Stripe Connect, Clover, Moneris, Heartland, Uber Eats integrations • 𝗠𝗼𝗯𝗶𝗹𝗲: Flutter, native Android, Kotlin Multiplatform, Xamarin to .NET MAUI • 𝗛𝗲𝗮𝗹𝘁𝗵𝗰𝗮𝗿𝗲: HIPAA-aware logging, dashboards and mobile sync You get short, plain updates with the next step first, and no surprises on scope. 𝗔𝘃𝗮𝗶𝗹𝗮𝗯𝗶𝗹𝗶𝘁𝘆: Full workday overlap with UK / EU / Middle East and US East & Central; mornings to early afternoon for US West. 40+ hrs/week. 𝗦𝗲𝗻𝗱 𝗺𝗲 𝘁𝗵𝗲 𝗿𝗲𝗽𝗼 𝗼𝗿 𝘁𝗵𝗲 𝗽𝗿𝗼𝗯𝗹𝗲𝗺 𝗮𝗻𝗱 𝗜'𝗹𝗹 𝘁𝗲𝗹𝗹 𝘆𝗼𝘂 𝘄𝗵𝗲𝗿𝗲 𝗜'𝗱 𝘀𝘁𝗮𝗿𝘁.