Strong Middle Full-Stack Developer (Next.js / TypeScript)
About the Role
We are looking for an experienced Full-Stack Developer with strong expertise in modern TypeScript-based architecture and a deep understanding of the Next.js ecosystem. This role requires someone who can design scalable applications, build complex UI systems, implement backend logic, and maintain high-quality engineering standards through testing and performance optimization.
You will work on building sophisticated web applications using the latest frontend and backend technologies while following modern architectural patterns and best practices.
Required Technical Skills
Frontend
Next.js 15+ (App Router)
Strong practical understanding of:
React Server Components (RSC) vs Client Components
use client / use server
revalidatePath
App Router architecture and rendering strategies
React 19
Hands-on experience with:
Context API
useState
useCallback
useRef
Custom hooks
Complex interaction logic including pointer-event drag implementations
TypeScript (strict mode)
Advanced TypeScript knowledge including:
Branded types
Utility types (Pick<>, NonNullable<>, Awaited<>, ReturnType<>)
Exhaustive switch checking patterns
Zod schema validation
Strong type-safe architecture principles
Tailwind CSS + Shadcn UI (Radix UI)
Experience building complex UI systems, not only styling components:
Dialog
Sheet
Popover
Tabs
Reusable design systems and component architecture
URL as State Management
Experience with:
nuqs
Type-safe search parameters
URL-driven state patterns as alternatives to Redux/Zustand
Backend
Next.js Server Actions
Strong understanding of complete workflows:
Authentication and authorization
Data mutations
revalidatePath
Structured error handling and error enums
Prisma 6 + PostgreSQL
Practical experience with:
ORM patterns
Prisma.validator()
satisfies
Relations
Soft delete implementation
Understanding when to transition from ORM abstractions to raw SQL
SQL
Ability to write advanced queries including:
WITH CTE queries
Aggregated reporting queries
Parameterized SQL using Prisma.sql
Testing
Experience with:
Bun Test
Unit testing (pure functions)
Integration testing (mocked Prisma)
DOM testing using:
@testing-library/react
happy-dom
Testing Architecture
Dynamic import patterns
Cache-busting strategies for test isolation
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