Backend Development: Design, develop and evolve APIs and services responsible for the platform's main flows.
Core Module Development: Work directly on modules such as Campaign Engine, Customer Profile, Integration Hub, Channel Orchestrator and system events.
Integrations: Build integrations with external services (ERPs, WhatsApp, VOIP, payments, data bureaus), ensuring resilience and performance.
Service Architecture: Structure modular, scalable services with clear separation of responsibilities and low coupling.
Data Modeling: Define and evolve data structures with a focus on consistency, performance and multi-tenant environments.
Asynchronous Processing: Implement queues, workers and event-driven processing (e.g., campaigns, deliveries, webhooks).
Observability: Monitor logs, metrics and tracing to ensure stability and rapid identification of issues.
Performance and Scalability: Optimize services to handle high volumes of data, calls and real-time events.
Code Quality: Ensure clean, testable code and follow best practices for versioning and code review.
Collaboration: Work closely with frontend, AI and product teams to ensure deliveries are aligned with business needs.

Backend Experience: Solid experience in backend development (preferably Node.js + TypeScript).
APIs: Strong experience building REST APIs (gRPC is a plus).
Databases: Knowledge of data modeling and experience with relational databases (PostgreSQL).
Architecture: Experience with distributed systems, modular architecture or microservices.
Asynchrony: Experience with queues, messaging and asynchronous processing (SQS, RabbitMQ, Kafka or similar).
Integrations: Hands-on experience integrating external APIs and handling failures (retry, fallback, etc.).
Cloud: Experience with AWS or another cloud provider.
Observability: Basic knowledge of logging, metrics and monitoring.
Version Control: Experience with Git and collaborative development workflows.

Backend Developer Mid/Senior

Key skills