Job Summary: We are seeking Mid-Level Web Developers to create solutions that impact millions of people in the sanitation sector, developing and maintaining web and mobile systems. Key Highlights: 1. Work for an established company with high-impact projects 2. A dynamic and ethical environment that combines technology and simplicity 3. Opportunity for growth in strategic projects within the sanitation sector **Description:** ---------------- **Location**: Campo Grande - MS **Work Mode**: On-site **Level**: Mid-level (minimum 2 years of experience) **About EOS Systems** With over 30 years of experience in the sanitation market, EOS Systems is a national benchmark, serving public and private clients across Brazil. We are looking for Mid-Level Web Developers eager to join this innovative and dynamic team! If you have at least 2 years of experience with Microsoft technologies (C#, ASP.NET MVC, .NET Core), as well as Angular and databases such as Oracle, MongoDB, and Redis, this is your chance to build solutions impacting millions of people. Here, your code will be a key component in projects making a real difference in the sanitation sector. **Why join EOS Systems?** * Work for an established company with nationally and internationally impactful projects * A dynamic and ethical environment—join a team that unites technology and simplicity * Opportunity for growth in strategic projects within the sanitation sector **What You’ll Do:** The selected candidate will be responsible for: * Developing and maintaining highly interactive and creative web and mobile systems * Working with Oracle, MongoDB, and Redis databases to ensure performance and security * Collaborating with a highly experienced technical team to deliver innovative solutions * Participating in the entire software development lifecycle, from planning to delivery **Requirements:** ----------------- ✅ **Mandatory Requirements** * Experience in web development with HTML, CSS, and JavaScript * Proficiency in C#, ASP.NET MVC, .NET Core, and Angular * Knowledge of Oracle, MongoDB, and Redis databases * Experience with Entity Framework * Familiarity with Git and best programming practices * Ability to work collaboratively and solve technical challenges * Availability to work on-site in Campo Grande - MS **Nice-to-Have Qualifications** * Front-end experience (Angular, React) * Knowledge of RESTful API development * Mobile development experience (Xamarin, MAUI) * Understanding of Software Architecture * Experience with DevOps and Agile methodologies * Proficiency in AI tools (e.g., GitHub Copilot, ChatGPT, Claude) * Prior experience in public-sector or sanitation-related projects **Location** Campo Grande, Mato Grosso do Sul, Brazil