Our team is seeking a skilled Senior .NET/Next.js Fullstack Developer to join our development team. The adecuado candidate is a senior-level professional with deep expertise in both modern .NET backend development and Next.js/React frontend architecture. You will design, develop, and maintain complex, end-to-end enterprise applications — from scalable RESTful APIs and domain-driven backend services to high-performance, feature-sliced frontend applications using optimal rendering strategies.

This role requires strong ownership of fullstack solutions, including test-driven development, CI/CD pipelines, architectural decision-making, and mentoring across both backend and frontend layers.

Responsibilities
Design, develop, and maintain robust .NET backend applications and high-performance Next.js frontend applications using current frameworks and best practices
Implement comprehensive testing strategies: XUnit + TDD for backend and Jest/React Testing Library/Playwright for frontend
Architect scalable fullstack solutions using established design patterns, Domain-Driven Design (DDD),



layered architecture, and Feature-Sliced Design (FSD)
Optimize application performance through strategic use of SSR, SSG, ISR, client-side rendering, query optimization, and caching
Design and optimize PostgreSQL database schemas, views, stored procedures, and indexes while integrating via Entity Framework Core
Implement and maintain CI/CD pipelines for automated testing and deployment across backend and frontend
Lead technical decisions on architecture, state management, rendering strategies, and API-frontend integration
Collaborate with cross-functional teams (including UX/UI) to deliver exceptional user experiences and high-quality software
Participate in code reviews, enforce coding standards, and mentor junior developers on .NET and Next.js best practices
Manage complex application state and dependency injection across both layers (Redux Toolkit/RTK Query, Zustand, InversifyJS patterns
Req

📌 Full Stack Engineer (Colombia)
🏢 Team International
📍 Colombia