Job Summary: We are looking for a Node.js SSR Developer to design, develop, and evolve core services of a SaaS platform, ensuring performance and scalability in solutions for the construction industry. Key Highlights: 1. Design, develop, and evolve robust, secure, and scalable APIs. 2. Product mindset and focus on real-world impact. 3. Collaborate in the technical definition and estimation of new features. What does the company do? A technology company with strong market presence, specializing in developing SaaS solutions for end-to-end fleet and heavy equipment management in the construction industry. It stands out for its data-driven strategic approach, continuous innovation, and commitment to optimizing the operational and financial performance of its clients. What do you need to join the team? Personal requirements: Ability to work with open or evolving requirements. Strong technical judgment to make decisions and explain trade-offs. Product mindset and focus on real-world impact. Good communication skills and willingness to collaborate within a small team. Autonomy, technical judgment, and execution capability. Technical requirements: 3+ years of backend development experience with Node.js in production environments. Advanced proficiency in TypeScript and associated best practices. Solid experience in designing and modeling relational databases, preferably PostgreSQL, including query optimization and efficient transaction handling. Experience in designing, developing, and documenting APIs, ideally under the GraphQL paradigm. Strong knowledge of software design principles, backend architecture patterns, and domain modeling. Proficiency with Git and experience working with collaborative workflows (PRs, code reviews, branching strategies). Prior experience with SaaS products, startups, or product-oriented environments is a plus! What will you do? Design, develop, and evolve robust, secure, and scalable backend APIs, ensuring high performance and maintainability. Implement and model complex business logic related to: - Equipment usage, availability, and traceability management. - Real-time telemetry and event processing. - Report generation, metrics, and data aggregations. - Authentication, authorization, role, and permission systems. Design and optimize PostgreSQL data models, ensuring integrity, consistency, and efficiency in high-volume queries. Actively participate in architectural, scalability, and performance decisions, proposing continuous technical improvements. Write clean, testable code aligned with best practices (testing, code reviews, quality standards). Collaborate in the technical definition and estimation of new features, working closely with product and stakeholders. Identify, diagnose, and resolve performance, concurrency, and data consistency issues. Contribute to the team’s technical growth by promoting standards, best practices, and improvements in development processes. What is the challenge of this position? As a Node.js SSR Developer, you will be challenged to design, develop, and evolve the core services of a data-oriented SaaS platform, guaranteeing performance, scalability, and technical robustness in every solution. Additionally, you will lead the development of new backend features, optimize existing architectures, and actively participate in key technical decisions—from API design to the establishment of standards and best practices. We seek a candidate with an ownership mindset, focus on code quality, and the ability to transform complex challenges into simple, robust, and scalable solutions. Who will you work with? You will join a highly product-oriented team focused on technical excellence, scalability, and building solutions that address real business challenges in demanding industrial environments. When and where will you work? You will work Monday through Friday, from 9 AM to 6 PM, with flexibility to attend the office located in Retiro (CABA). What do they offer? Contractor engagement model Salary in USD What are the stages of the selection process? You will have an initial interview with our Recruiter, Melina Rubio, to discuss your professional experience and interests. Then, you will meet the hiring company’s team, followed by a technical interview.