Argentina onlyAbout DaCodes
At DaCodes, we build high-impact software solutions for startups and global companies across LATAM and the U.S. We work with senior teams who value ownership, technical excellence, and high-quality engineering standards.
Role Overview
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.
What You’ll Do
- Design and implement backend integrations between SaaS platforms, ERPs, and internal services.
- Design and maintain secure, versioned, and resilient REST APIs for external integrations.
- Design and implement event-driven patterns (webhooks, retries, idempotency, duplicate handling, and eventual consistency).
- Design and implement authentication and authorization flows:
- OAuth2 (authorization flows)
- JWT (token format & validation)
- API Keys, HMAC
- Analyze concurrency, performance, and scalability issues in Node.js.
- Implement observability strategies (structured logging, monitoring, and robust error handling in production).
- Evaluate architectural trade-offs in integration, security, and data consistency scenarios.
- Be responsible for the stability and reliability of production integrations.
Requirements
- 4+ years developing backend systems in production, with experience in integrations and distributed architectures.
- Advanced Node.js (event loop, async I/O, blocking vs. non-blocking).
- Strong understanding of HTTP at the protocol level.
Hands-on experience with:
- OAuth2 (authorization code / client credentials)
- JWT (not as “magic” auth)
- Webhooks (idempotency, retries, deduplication)
- Experience resolving real incidents and production issues.
- Advanced English (communication with US clients).
Nice to Have
- Experience with iPaaS (Mulesoft, Workato, Boomi, etc.).
- ERP integrations (NetSuite, SAP, Business Central).
- Knowledge of CI/CD.
- Experience in high-concurrency environments.
Benefits
🚀 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.
Mexico
