**Wada Solutions is looking for a Backend Developer to join our team and contribute to the development of technological solutions in the water sector.** **Who we are** **WADA Solutions** is a company specialized in developing technological solutions for the water sector. * What we do: + Development and commercialization of products (hardware and software); + Creation of customized projects tailored to client needs; + Management and participation in R&D projects; + Provision of technical support and maintenance services. **What we're looking for** We are seeking a **Backend Developer** with experience in **Python/Django** and **Machine Learning algorithms**, to join our team and work on an existing codebase, focusing on developing new features and continuous improvement of our product. Our product combines software, hardware (**IoT**), and **Machine Learning tools** to create innovative solutions in the water sector. The ideal candidate will be someone with strong learning ability, autonomy, and self-management skills. A full-stack profile will be valued, as occasional front-end development support may be required. Clear communication and ease in collaborating with multidisciplinary teams are essential. Additionally, the candidate must be available to visit the office once per month and during specific situations. **Requirements** * Bachelor’s degree in Computer Engineering or equivalent; * Solid experience in backend development with Python/Django (2\-3 years); * Practical experience with Machine Learning algorithms (even if acquired in an academic context); * Knowledge of security best practices and performance optimization; * Experience integrating with APIs and external services; * Ability to understand and work with existing codebases; * Proficiency in Portuguese (mandatory). **We value** * Knowledge of React (ability to understand and make minor changes); * Experience with Docker, Nginx, PostgreSQL, and Redis; * Knowledge of asynchronous processing (e.g.: Celery, RQ); * Interest in new technologies and enthusiasm for working with AI (cursor, claude code, etc.). **What we offer** * Remote work and flexible hours; * Annual Gross Salary between 21k and 30k; * Meal allowance of 10.20€/day via meal card; * MULTICARE 3 Health Insurance; * Work computer and peripherals; * Opportunity to work on innovative projects in the water sector; * Dynamic and young environment; * Clear growth and career progression prospects. **Location: Remote.** Company with office in Coimbra. Applications: **Send CV to** **\tions****. **Recruitment process** * **Technical Interview** \- relevant questions regarding the position (30 to 45 minutes); * **Live Coding Challenge in Django** \- a practical exercise where you can demonstrate your skills and explain your reasoning (1h to 1h30\); * **Empathy Interview** \- conversation with management to align expectations, culture, and presentation of offer (30 to 45 minutes). Join our mission and help us make the world a **more sustainable place!** You can find the original job posting at: https://www.itjobs.pt/oferta/505117/backend\-developer