Systems
APIs, databases, and the logic underneath.
I build cohesive software products by focusing on the complete journey. I am driven by uncovering the right problems to solve, and seeing the solution through to a polished reality.
Problem-First Approach
I prioritize deeply understanding the core problem before writing a single line of code. Great engineering starts with asking the right questions, defining clear constraints, and ensuring we are solving the right challenge from the start.
End-to-End Perspective
I love being part of the complete process of building a software product. From early architectural choices through to frontend implementation and final deployment, I am comfortable stepping into any part of the stack to help the team succeed.
Delivery-management REST API for a fictional shipping company. Manages the full courier lifecycle — pending → withdrawn → delivered → returned — with role-based JWT for admins and couriers, photo proof on delivery, and a geo-aware nearby-orders endpoint. Built on clean architecture.
Mobile marketplace for browsing, favoriting, and checking out — with an animated credit-card form, push notifications, and deeplinks. Expo + TypeScript + NativeWind, structured as MVVM with custom-hook view models. TanStack Query for server state, Reanimated worklets for UI-thread animations, hybrid storage (SecureStore + AsyncStorage) for auth.
Web app for saving and organizing AI prompts. Next.js 16 + React 19 with Server Actions for mutations, Prisma on Postgres, and shadcn/ui on Tailwind v4. Layered architecture splits domain entities, use cases, and Prisma repositories so business logic is testable in isolation. Unit + integration tests with Jest, end-to-end with Playwright.
Photo gallery web app for uploading and organizing photos into albums. Vite + React 19 frontend with Fastify backend in the same repo, sharing Zod schemas as a single source of truth between client and server. Multipart uploads streamed to disk, search state synced to URL via nuqs.
Stack-Overflow-style forum REST API built on NestJS with strict Clean Architecture and DDD — domain layer free of framework imports, use cases returning Either monads instead of throwing, and domain events decoupling forum from notifications. Prisma on Postgres, JWT auth, S3 uploads, full Vitest suite (unit with in-memory repos + E2E).
REST API for a pet-adoption platform — shelters register, post pets with rich attributes (age, size, energy, independence, environment), adopters search by city with combined filters. Fastify + Prisma on Postgres, repository pattern with both Prisma and in-memory implementations so use cases test in milliseconds. JWT auth with refresh token in HTTP-only cookies. Vitest projects split unit (in-memory) from E2E (real Postgres).
GymPass-style API where members find gyms within 10 km and check in once they're within 100 m, while admins register gyms and validate check-ins within a 20-minute window. Fastify + Prisma on Postgres, repository pattern with both Prisma and in-memory implementations, Haversine-style proximity calc, RBAC middleware reading the JWT role claim. Vitest projects split unit (in-memory) from E2E (real Postgres).
Down the rabbit hole.
Unpolished scripts, custom hooks, and weekend experiments.
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