Aisha Karim
Summary
Back-End Developer with 5 years building and maintaining service APIs, background jobs, and data pipelines. Known for improving reliability through observability, careful schema changes, and secure access patterns in production.
Experience
- Implemented REST endpoints for scheduling workflows, cutting average response time from 2.1s to 1.4s through query tuning.
- Built event-driven background jobs for insurance verification, reducing manual follow-ups by reconciling status transitions.
- Hardened authentication and authorization with scoped roles, improving audit traceability for protected record access.
- Refactored order processing services, reducing error rates by handling idempotency keys across retries.
- Designed data migrations for legacy schemas, preserving reporting continuity while adding indexes and constraints.
- Added observability to critical services, improving incident response with structured logs and consistent metrics.
- Developed internal APIs for dispatch teams, standardizing payload validation and improving integration reliability.
- Maintained integrations with shipping providers, resolving webhook edge cases and replay logic for failed events.
- Created automated tests for service routes, increasing coverage for authentication flows and data access rules.
Skills
REST API Design · SQL Query Optimization · Database Migrations · Authentication & Authorization · Background Job Processing · Message Queues · Observability · Testing With PHPUnit · Idempotent Workflows · Docker · Linux Administration
Certifications
AWS Certified Cloud Practitioner · Microsoft Azure Fundamentals (AZ-900)
Education
Bachelor of Science in Computer Science, University of Midwestern Studies, 2016.