Senior full stack Developer for Incomplete Platform
Publicada el 2026-07-31
Descripción de la oferta
Senior Backend Developer Required (Long-Term) – Existing Platform Needs Completion We are looking for an experienced Senior Backend Developer to join our team on a long-term basis. Our previous developer completed only the basic foundation of the backend, but the project is far from production-ready. We're looking for someone who can take ownership of the architecture, finish the remaining modules, and continue maintaining the platform. What Has Already Been Completed User registration & authentication Phone OTP login JWT access/refresh authentication Customer profile Locations Locker units Individual lockers Bookings Pricing rules Wallet and basic payment records Support tickets Scheduled booking/status jobs Basic IoT/Firmware communication placeholders Basic Admin/Web Portal APIs These modules exist but represent only the initial implementation. What Still Needs to Be Built Multi-Tenant Architecture Proper organization isolation Company-level data segregation Multi-tenant permissions User & Permission Management Management accounts Client accounts Support accounts Employee accounts Granular roles and permissions ERP & Business Features Employee records Company ERP integration Client feature flags Office locker management Permanent locker assignments Shift-based locker allocation Customer Support Live support agent routing Ticket workflow improvements IoT & Smart Locker Features Customer verification before remote opening Device command lifecycle Command acknowledgements Door Open / Door Close event handling Physical confirmation events Command idempotency Event sequencing Unit activation keys Controller identity & authentication Heartbeats Offline/stale device detection Firmware Management Firmware inventory OTA firmware campaigns Rollout & rollback Signature verification Monitoring & Infrastructure Redis queues WebSocket / MQTT architecture Production monitoring Scaling & performance optimization Security audit logs Operational logs CMS & Administration Media & Advertising CMS Advanced Admin features Quality & Documentation Unit & Integration tests Complete OpenAPI/Swagger documentation Postman collection Production-ready API documentation Ideal Candidate 5+ years of backend development experience Strong experience with Node.js/NestJS (preferred) Experience with PostgreSQL, Redis, Docker Experience building multi-tenant SaaS platforms IoT/MQTT/WebSocket experience REST API architecture Authentication & authorization Production system architecture CI/CD knowledge Excellent communication skills Important This is not a greenfield project. You'll be taking over an existing codebase and completing it to production quality. Please include: Similar backend or SaaS projects IoT or MQTT experience (if any) Experience with multi-tenant architectures Estimated availability (hours/week) Expected monthly or hourly rate We're looking for a long-term technical partner who can own this project and grow with our team.
Skills
- Node.js
- REST APIs
- PostgreSQL
- Docker
- Redis
- JavaScript
- OpenAPI
- PHP
- HTML
- Customer Support
- Auditoría
- Comunicación
- WebSocket
- Postman
- NestJS
- CI/CD
- JWT
- TypeScript
- React
- SQL
Fuente original: freelancer