Job Summary: Develop and maintain the backend layer, orchestrating business and artificial intelligence workflows with robustness, security, and scalability. Key Highlights: 1. Design and implementation of REST APIs and business/IA microservices. 2. Integration with AI, relational databases, and document storage. 3. Collaboration with AI/LLM Engineer on input and output contracts. Role Backend Engineer (Microservices) Develop and maintain the backend layer that orchestrates business and artificial intelligence workflows, ensuring robustness, security, scalability, and traceability. Main Responsibilities * Design and implement REST APIs. * Develop business microservices and AI orchestration. * Integrate: o AI microservices o Relational databases o Document storage * Implement authentication and authorization (JWT / OAuth). * Handle errors, logging, and traceability. * Persist AI analysis results for auditing. * Collaborate with the AI / LLM Engineer on input and output contracts. * Ensure system performance and stability. Tools, Languages, and Platforms * Languages: Java, Python, or Node.js * Frameworks: Spring Boot, FastAPI, or Express * Data: PostgreSQL * Integrations: REST APIs, JSON * Security: OAuth 2.0, JWT * Infrastructure: Docker, Kubernetes, Google Cloud Mandatory (Non-negotiable) * +4 years of backend development experience. * Experience in microservices architecture. * Proficiency in REST / JSON. * Experience with relational databases. * Basic security knowledge. * Experience integrating external services via API. Nice to have * Experience with Google Cloud Platform. * Knowledge of observability (logs, metrics). * Experience in financial or regulated systems. * Desired certifications: o Google Associate Cloud Engineer o Google Professional Cloud Developer or AWS Certified Developer – Associate Interested candidates please send CV to valeria.gonzalez@bykon.com.mx Position Type: Full-time Salary: $45,000.00 - $50,000.00 per month Benefits: * Option for indefinite-term contract Work Location: Hybrid remote in Ciudad de México, CDMX