Back End Developer

act digital is a multinational company present in 12 countries, which combines local agility and global expertise to act as a strategic partner for our clients in delivering customized and scalable solutions.

In Portugal, we have around 120 clients and a team of over 400 people, working on projects in sectors as diverse as Banking, Insurance, Transport, Aviation and Energy.

Job Description:

We are looking for a Senior Back-End Developer/Architect with strong experience in designing and developing backend services using NestJS.

Responsibilities:

• Develop and architect backend services with NestJS, leveraging its modular architecture, dependency injection, middleware, guards, and interceptors.
• Design and implement RESTful APIs with NestJS, integrating smoothly with databases using TypeORM or Prisma ORM focused on relational databases like PostgreSQL or MySQL.
• Mentor junior developers, lead code reviews, and enforce best practices in coding and architecture. Maintain strong emphasis on security, performance, and scalability in cloud-native application development.

Qualifications:

• Proven experience in TypeScript and NestJS with strong backend API development expertise.
• Solid understanding of React.js for frontend development, including modern hooks and state management.
• Experience with relational databases and ORM tools like TypeORM.
• Familiarity with containerization (Docker), CI/CD pipelines, and automated deployment in cloud environments.
• Strong collaboration and communication skills within cross-functional agile teams.

Technical Skills:

• NestJS, TypeScript, Node.js, REST APIs, TypeORM
• React.js (hooks, context), JavaScript/TypeScript
• PostgreSQL
• Testing: Jest, Supertest for backend; React Testing Library for frontend
• Nice to have some knowledge in a hyperscaller lke GCP, AWS, Azure
• English (at least B2) is mandatory

Location:

Location will be Lisbon, Braga or Coimbra and the working model will be on-site/hybrid. Candidates must be living in Portugal.