berko.tech is looking for a backend-focused engineer to design and maintain scalable multi-tenant systems, realtime infrastructure, automations, and core business logic.

The role is primarily backend engineering with a strong focus on data architecture, security, system design, and reliability.

Stack:

Backend Core
-Node.js
- Supabase
- Postgres
- Row Level Security (RLS)
- Auth & Permissions
- Realtime
- Storage
- pg_cron
- Edge Functions (Deno + TypeScript)

Infrastructure & Integrations
- Stripe (billing systems)
- AI integrations (tool-calling, workflows)
- MQTT / IoT systems
- Mapbox (geospatial data layer, backend side usage)
- Capacitor backend APIs (mobile support layer)

Responsibilities

- Design and maintain multi-tenant backend architecture
- Implement and maintain RLS-based security models
- Build backend business logic and domain services
- Develop Edge Functions and server-side workflows
- Design scheduling, automation and job processing systems
- Build billing, credits and subscription systems
- Integrate external APIs and third-party services
- Work with realtime event-driven systems
- Optimize database performance and scalability
- Ensure data consistency, isolation and security across tenants

Requirements
- Strong Node.js experience
- Strong TypeScript experience (server-side)
- Strong understanding of Postgres (schema design, indexing, relations)
- Experience building backend systems and APIs
- Understanding of authentication, authorization and security models
- Experience with multi-tenant architectures
- Ability to design scalable backend systems independently

Nice to Have
- Basic understanding of React and React Native
- Experience with Stripe billing systems
- Experience with realtime systems (websockets / event streams)
- AI workflow integration experience (tool-calling, orchestration)
- MQTT / IoT systems experience
- Geospatial / Mapbox backend data handling
- Experience with scheduling systems / job queues / cron orchestration

Focus of the Role

This role is backend-first and centered around:
- system architecture
- database design
- security and access control
- multi-tenant isolation
- realtime and event-driven systems
- automation and scheduling logic
- billing and usage tracking