Principal Back End Developer

Role Description

This is a contract-based remote role for an Integration Lead. The Integration Lead will manage the integration of software systems, troubleshoot issues, and coordinate with relevant teams to ensure seamless functionality. the role requires the candidate to Own API / socket contracts, SLO / observability gates, and cross-team delivery across Android, iOS, Node, and FastAPI / ML, i.e., Node.js Expert + Socket.IO + Mobile Networking. Hands-on, not a PM role. This role involves collaborating with stakeholders, analyzing system requirements, and ensuring solutions align with project objectives and timelines.

Qualifications

• Proficiency in Integration, Troubleshooting, and related technical expertise
• Strong Analytical Skills to evaluate and resolve complex system challenges
• Write / own OpenAPI+Socket ICDs; versioning & deprecation.
• Implement / guide idempotent POSTs, retry / DLQ, admission control.
• Ensure trace propagation app → edge → queue → worker; build dashboards.
• Coordinate Android / iOS parity and model rollout headers / versioning.
• Effective Communication skills for cross-functional team collaboration
• Knowledge of Software Development processes and tools
• Experience with Ship-quality code in Node.js / TypeScript or Python for APIs / workers.
• Production experience with queues (RabbitMQ / Kafka), Socket.IO / WebSockets.
• Experience with OpenTelemetry tracing + Prometheus / Grafana dashboards.
• Experience with integration in a corporate or enterprise environment is a plus
• Bachelor's degree in Computer Science or Information Technology