• Develop and maintain full web applications, working on both backend (PHP) and frontend. • Build and integrate APIs and automated routines (Cron), ensuring efficient communication between systems. • Perform corrective and evolutionary maintenance, ensuring application stability and performance. • Apply development best practices, including Clean Code, SOLID, security, and scalability. • Monitor and optimize application performance and database queries. • Use code versioning (Git) and participate in code reviews. • Contribute to continuous improvement of processes and development standards.

• Build, modify, and maintain multi-step lead-capture flows and web experiences • Develop backend functionality using PHP and MySQL • Integrate and troubleshoot third-party APIs • Create and maintain logging, reporting, and analytics solutions • Improve conversion performance through iteration and optimization • Write maintainable, reusable, and production-safe code • Collaborate asynchronously with the engineering team

• Develop and maintain frontend and backend features; • Work with BDD-style user stories and collaborate on test automation; • Apply development best practices, ensuring code readability, consistency and organization; • Actively participate in code reviews and contribute to the team's technical growth; • Collaborate in the continuous delivery of solutions, integrating with CI/CD processes; • Follow Clean Code principles and contribute to the continuous improvement of products and processes.

Role Description We are looking for a Senior Backend Engineer with a strong focus on integrations, capable of designing, implementing, and maintaining robust, scalable, and secure backend systems, primarily using Node.js, APIs, and event-driven architectures. This is not a low-code configuration role. It requires deep understanding of backend engineering, protocols, concurrency, and security. - Work on complex backend systems and real-world integrations (SaaS, APIs, ERPs) - Solve challenges around scalability, reliability, and distributed systems - Collaborate with a highly senior team with strong technical ownership - Work directly with U.S.-based clients and products with real impact What You’ll Do - Design and build scalable backend services using Node.js - Develop and maintain robust, secure APIs - Work on integrations between SaaS platforms, ERPs, and internal systems - Implement event-driven flows (webhooks, retries, idempotency) - Contribute to authentication and authorization flows (OAuth2, JWT, API keys) - Identify and solve performance, concurrency, and scalability challenges - Improve observability, logging, and error handling in production - Participate in technical decisions and architecture discussions Qualifications - 4+ years developing backend systems in production, with experience in integrations and distributed architectures - Strong experience with Node.js in production environments - Experience building and working with APIs - Familiarity with authentication and authorization mechanisms (OAuth2, JWT or similar) - Experience integrating with external systems or third-party services - Solid understanding of backend fundamentals (performance, scalability, reliability) - Advanced English (you’ll work with U.S. clients) Nice to Have (Not Required) - Experience with event-driven architectures or webhooks - Experience with iPaaS tools (Mulesoft, Workato, Boomi, etc.) - Experience integrating with ERPs (NetSuite, SAP, Business Central) - Experience with high-concurrency systems - Familiarity with CI/CD practices Benefits - Remote-first culture - High ownership and autonomy - Focus on clean, maintainable, production-grade code - Collaborative, senior-level environment - 🚀 Work with global brands and disruptive startups. - 🏡 Remote work / Home office. - 📍 If a hybrid or on-site model is required, you will be informed from the first session. - ⏳ Work schedule aligned with the assigned project/team. - 📅 Monday to Friday schedule. - ⚖️ Legal benefits (Applicable for Mexico). - 🎉 Day off on your birthday. - 🏥 Private health insurance (Applicable for Mexico). - 🛡️ Life insurance (Applicable for Mexico). - 🌎 Multicultural teams. - 🎓 Access to courses and certifications. - 📢 Meetups with industry experts and top universities. - 📡 Virtual networking events and interest groups. - 📢 English classes. - 🏆 Opportunities within our different business lines. - 🏅 Proudly certified as a Great Place to Work.