Junior Back-End Developer (Full-time/Part-time; Lisboa; Hybrid/Remote)
Watt-IS is accelerating the energy transition through AI-powered solutions that empower utilities, energy retailers, and energy communities to optimize energy usage and reduce carbon emissions. We’re looking for a talented Junior Back-End Developer to support our existing micro-services architecture, develop new services and integrate them with our platforms.
Responsibilities:
- Develop new functionalities for existing and new projects
- Maintain existing and new projects
- Develop technical specifications based on functional requirements
Technical skills:
- Experience in database design and data modeling (ER Diagrams)
- Experience in querying and storing data in SQL (PostgreSQL, SQL Server) and/or NoSQL (MongoDB) databases
- Experience in developing, documenting and testing JSON-based REST Web APIs (FastAPI, Pydantic, Express.js)
- Experience using HTTP clients to interact with JSON-based REST Web APIs
- Experience with Git and Linux environments
- Familiarity with Ruby and Ruby on Rails (or similar frameworks like Laravel, Spring MVC)
- Understanding of Micro-services architecture
Requirements:
- Degree in Computer Science, Electrical or Electronics Engineering, or equivalent
- Excellent communication (written and oral) and interpersonal skills
- Fluent in English
- Proven ability to work creatively and analytically in a problem-solving environment
- Willingness to learn and adapt to new concepts, technologies and to collaborate with other team members
Nice to have:
- Experience developing static web pages with HTML, CSS and JavaScript
- Experience developing web apps with React and Tailwind CSS (or similar frameworks)
- Experience with data science, machine-learning and AI with Python, R or Matlab
- Familiarity with DevOps practices - Docker and Cloud-based services (Azure, AWS)
Send us your CV and motivation letter to <endereço ocultado> with the subject “Junior Back-End Developer 25.12”.
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