**Why work at Matrixcargo?** Matrixcargo is an innovative digital platform that delivers intelligent logistics solutions, delivering high performance and operational synergy for all stakeholders. If you are proactive, determined, and want to join a team revolutionizing the industry, this opportunity is for you! Your mission will be to design and build new solutions for the company’s systems. Your **Mission**, as a **Mid-Level Full-Stack Developer**, will be to play an active role in solution architecture, development of new features, and ensuring system performance and scalability. **Responsibilities and duties** **WE COUNT ON YOU TO:** * Design and develop new features and services for the platform. * Maintain and optimize existing code, ensuring efficiency and scalability. * Contribute to software architecture, ensuring quality, modularity, and adherence to best practices. * Implement automated tests to ensure system reliability. * Support the definition of engineering best practices, such as code reviews and architectural standards. * Collaborate closely with Product, Infrastructure, and UX/UI teams to ensure the best possible end-user experience. * Participate in the development of a new platform, including architecture design and implementation of new features. * Maintain current systems, ensuring scalability, security, and stability. * Work in a high-demand environment with performance and growth challenges. **TECHNOLOGY STACK:** * **Backend**: TypeScript, Nest.js, Node.js * **Frontend**: React * **Infrastructure**: AWS (ECS, S3, RDS, Lambda) * **Database**: PostgreSQL * **Tools and practices**: Git, CI/CD, Docker **Requirements and qualifications** **WHAT YOU NEED TO HAVE:** * Experience in Full-Stack development using the aforementioned stack. * Advanced knowledge of software architecture and design of scalable systems. * Experience implementing development best practices, including automated testing, version control, and CI/CD. * Ability to perform data modeling and database design for relational databases. * Experience developing REST and GraphQL APIs. * Skills in application performance analysis and optimization. **PREFERRED QUALIFICATIONS:** * Experience with Domain-Driven Design (DDD). * Application of Test-Driven Development (TDD) in development. * Knowledge of microservices and event-driven architecture. * Familiarity with DevOps practices and observability. * Ability to solve complex problems. * Resilience and adaptability to change. * Analytical and critical thinking. * Teamwork and collaboration. * Autonomy and self-management. **Additional information** This opportunity is to work at the startup **Matrixcargo**, a company within the Cargolift Group. **Check out the benefits exclusive to Matrixcargo:** ****Unlimited coffee, soft drinks, and energy drinks to recharge your energy; Relaxation area; Excellent location with numerous restaurants and other businesses offering discounts; Hybrid work model, with two days per week on-site; **Additional information:** This position is hybrid, based at our office located at R. Dep. Heitor Alencar Furtado, 3350 – Campo Comprido, Curitiba – PR, 81200-110, with the possibility of a fully remote arrangement. **\#JOINMATRIXCARGO** All our positions are open to people with disabilities and/or rehabilitated individuals. We embrace a culture that values diversity, differences, and individual potential! Applicant, please ensure your profile is up-to-date and your contact details are accurate! We’ll reach out via email or phone. Our corporate phone numbers include regional DDD codes. Good luck with your application! Nice to meet you — we’re Matrixcargo! Our purpose is to provide a high-tech digital platform for collaborative logistics solutions, continuously evolving to deliver operational synergy through resource optimization and profitability for all stakeholders involved in the logistics process. We operate within the Operational Control Center by reducing manual and human decisions made by operators. How do we achieve this? Through artificial intelligence, we identify optimal combinations of routes and vehicles — enabling data-driven, metric-based decision-making. We seek technology enthusiasts who want to take ownership of their careers and help us build new challenges together! Come do the best work of your life — \#bematrixcargo.