Fullstack developer (.net & React)

About the Position

We are seeking a Senior Fullstack Developer (.NET & React) to join a technology project in Maia, Portugal, focusing on backend and frontend development, system integration, and solution evolution, while contributing to the technical design and implementation of modern architectures.

Responsibilities

• Develop and evolve backend solutions using C# and.NET, leveraging REST APIs and PostgreSQL;
• Develop frontend interfaces using ReactJS;
• Design, implement, and maintain integrations between systems;
• Contribute to the technical definition and evolution of solution architectures;
• Ensure development best practices, code quality, performance, and scalability;
• Collaborate on the implementation of modern architectures and CI/CD processes;
• Contribute to the continuous improvement of development processes through the use of Artificial Intelligence tools.

Requirements

• More than 6 years of professional experience as a Fullstack Developer;
• Strong experience in backend development with C# /.NET;
• Experience developing REST APIs and working with PostgreSQL;
• Strong experience in frontend development with ReactJS;
• Experience with integrated systems and technical solution design;
• Knowledge of development best practices, code quality, and performance optimization;
• Ability to work independently, analyze problems, and find effective solutions;
• Strong communication and teamwork skills;
• Experience with microservices and event-driven architectures.

Nice to Have

• Knowledge of containers and Kubernetes;
• Experience with observability tools such as Grafana and Prometheus;
• Knowledge of CI/CD;
• Experience using AI Code Assistants, such as Claude, and Agentic AI throughout the development lifecycle;
• Experience with low-code platforms, particularly OutSystems.

Additional Information

• Location: Maia, Portugal
• Work Model: Hybrid (2 days per week at our offices in Maia)
• Published at: 10/2/2026
• Expiring at: 11/2/2026