Backend Developer Resume Example

“Backend developer with 6 years of experience building high-performance APIs, distributed systems, and data pipelines. Expert in Python and Go with deep knowledge of database optimization, message queues, and cloud-native architectures serving millions of daily active users.”

• Built a real-time event processing pipeline in Go with Kafka that handles 2M+ events per hour. Delivery guarantee is 99.99%
• Tracked down and fixed the slowest database queries - got P99 latency from 800ms down to 120ms, which bumped checkout conversion by 8%
• Responsible for the rate-limiting and auth middleware layer. It serves about 50M API calls a day across 200+ enterprise clients
• Migrated financial transaction data from MongoDB to PostgreSQL. Query performance improved 60% and we finally had proper ACID compliance
• Built a data archival system that automatically moves old records to cold storage. Saved $180K a year in storage costs
• Wrote a Go service for webhook delivery with retry logic and dead-letter queues. Processes around 500K webhooks daily
• Worked with the security team to add encryption at rest for all PII fields in our PostgreSQL databases across 3 services
• Set up structured logging and distributed tracing with OpenTelemetry. Made debugging production issues way faster for the whole team
• On-call for 12 backend services. Maintained runbooks and kept average incident response time under 10 minutes

Include these keywords in your resume to pass Applicant Tracking Systems.

• AWS Certified Solutions Architect - Associate
• Google Professional Cloud Developer