Backend Engineer
Systems That Scale Under Pressure
APIs, databases, integrations — builds the systems that power your product.
Why Choose Us for Backend Engineer
Schema-first development — types before code
Security hardening built into every endpoint
Load-tested before deployment
Real production experience from our ventures
Database optimization as standard practice
What You Get
A HavenWizards Backend Engineer builds the data layer, API surface, and business logic that powers your product. They work within our backend-first development framework — schema before API, API before frontend. Every endpoint ships with input validation (Zod), proper error handling (4-state pattern), and Row Level Security policies. They do not build throwaway backends — they design for the next 12 months of product evolution while shipping what you need this week.
Systems We Build
- API development — RESTful endpoints with input validation, error handling, and rate limiting
- Database engineering — schema design, migrations, indexing, query optimization, RLS policies
- Authentication & authorization — session management, role-based access, JWT handling, OAuth flows
- Integration development — third-party APIs, webhooks, retry logic, failure classification
- Background jobs — queue processing, scheduled tasks, cron jobs, long-running operations
- Data pipeline — ETL processes, data transformation, cross-service synchronization
- Security hardening — input sanitization, SQL injection prevention, secrets management, audit logging
- Performance optimization — query profiling, caching strategy, connection pooling, load testing
- API documentation — OpenAPI specs, endpoint guides, authentication docs, rate limit documentation
- Monitoring & observability — error tracking, performance metrics, alerting, log aggregation
Skills & Tools
Ready to Deploy a Backend Engineer?
Every role ships with our DIOSH governance framework — structured onboarding, quality gates, and delivery accountability from day one.