Job Summary: Recruitment and selection seeks a Mid-Level Back-End Developer to design and implement software architecture, develop and maintain applications, integrate and manage back-end services, and ensure code quality. Key Highlights: 1. Design and implement the software architecture of back-end systems. 2. Develop and maintain applications using Express.js, Nest.js, TypeScript, and Node.js. 3. Provide technical guidance and mentoring to junior developers. Recruitment and selection consultancy seeks a Mid-Level Back-End Developer in Balneário Camboriú (Pioneiros). **Responsibilities:** Design and implement the software architecture of back\-end systems. Develop and maintain applications using Express.js, Nest.js, TypeScript, and Node.js. Integrate and manage back\-end services with Firebase and MongoDB. Ensure code quality through unit testing and code reviews. Implement and maintain code versioning practices using Git. Collaborate with other teams to define technical and functional requirements. Provide technical guidance and mentoring to junior developers. Tasks relevant to mid-level back-end developer routines. On-site work in Balneário Camboriú / SC. Previous experience as a Mid-Level Back-End Programmer, Mid-Level Back-End Software Engineer, Mid-Level Back-End Systems Analyst, or Mid-Level Back-End Software Architect may indicate alignment with some responsibilities of this position. Bachelor's degree in progress Required experience **Compensation and Benefits:*** Salary: Please submit your salary expectation. * Performance-based bonus * Meal allowance * Birthday day off * Laptop **Additional Information:*** Contract type: PJ \- On-site. * Duration: Full-time * Working hours: Business hours. Monday to Friday.