1888 Senior Backend Engineer

We are looking for a Senior Backend Engineer to build and operate a production multi-tenant platform. You will own solutions end-to-endfrom design and development to deployment validation and monitoringworking primarily with TypeScript PostgreSQL/Supabase and AWS.

• Senior-level Backend Engineering experience with production systems.
  
• Strong PostgreSQL expertise: Schema Design Migrations and Row-Level Security (RLS).
  
• Experience with Multi-Tenant Architecture TypeScript Serverless and REST APIs.
  
• Strong integration experience: OAuth webhooks idempotency and reconciliation.
  
• Strong AWS experience: Lambda S3 RDS/Aurora SQS API Gateway CloudWatch IAM VPC Secrets Management and AWS Console/CLI.
  
• Experience with CI/CD infrastructure management and production deployments.
  
• Strong autonomy end-to-end ownership and ability to proactively identify technical risks.
  
• Advanced English proficiency.
  

Nice to Have: Supabase React iOS API contracts Python ML/MLOps model versioning EC2 Spot/GPU workloads PowerShell spec-driven development security/PII payment/FinTech integrations and video/streaming platforms.

• Build and maintain multi-tenant APIs and backend services ensuring secure data isolation with PostgreSQL RLS.
  
• Design schemas migrations and secure APIs for web iOS ML and partner integrations.
  
• Develop Serverless solutions with TypeScript.
  
• Own third-party integrations: OAuth/authentication webhooks idempotency reconciliation and vendor APIs.
  
• Manage AWS services: Lambda S3 RDS/Aurora SQS API Gateway CloudWatch IAM VPC and Secrets Management.
  
• Improve CI/CD environments monitoring health checks and alerting.
  
• Support ML/MLOps model versioning and cloud training infrastructure.
  
• Execute infrastructure/service migrations without disrupting production.
  
• Ensure security PII protection and reliable auditable production deployments.