Job Summary: We are seeking a talented Mid-Level Back-End Developer to design, implement, and maintain scalable, efficient, and secure system architectures, contributing to high-quality solutions. Key Highlights: 1. Key contributor in designing and maintaining system architecture 2. Development of applications using Express.js, Nest.js, TypeScript, and Node.js 3. Collaboration with teams and mentoring junior developers Mid\-Level Back\-End Developer \- Hybrid We are looking for a talented and experienced Back\-End Developer to join our team. You will be a key contributor in designing, implementing, and maintaining the architecture of our systems, ensuring they are scalable, efficient, and secure. Your contribution will be essential in delivering high\-quality solutions that truly make a difference for our customers. Responsibilities: ● Design and implement back\-end software system architecture. ● Develop and maintain applications using Express.js, Nest.js, TypeScript, and Node.js. ● Integrate and manage backend 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 mentorship to junior developers. Requirements: ● Proven experience as a Back\-End Developer. ● Proficiency in Express.js and Nest.js. ● Solid knowledge of TypeScript and Node.js. ● Experience with Firebase and MongoDB. ● Ability to write and maintain unit tests. ● Familiarity with code versioning practices using Git. ● Excellent problem\-solving skills and ability to work collaboratively in a team. ● Ability to clearly and effectively communicate complex technical concepts. What We Expect You to Know: ● Express.js ● Nest.js ● TypeScript ● Node.js ● Firebase ● MongoDB ● Unit testing ● Code versioning with Git Nice to Have: ● Experience with other back\-end technologies and frameworks. ● Knowledge of DevOps and CI/CD practices. ● Experience in agile environments \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ Behavioral Traits: ● Analytical ability and problem\-solving skills ● Commitment to excellence ● Communication skills ● Dedicated and proactive team player ● Goal\-oriented mindset ● Continuous pursuit of learning and growth ● Strategic vision and planning capability ● Leadership potential ● Adaptability and flexibility ● Resilience Position Type: Freelance / PJ Contract Duration: 12 months Compensation: R$2\.340,27 \- R$12\.190,51 per month Work Location: Remote hybrid, based in Balneário Camboriú, SC