John Smith
Senior Software Engineer
Open to new opportunities
Backend-leaning software engineer with eight years building payment and logistics platforms at scale. Leads a five-person team, and has taken two systems from unreliable to production-grade under measured targets. Strongest in distributed systems, payment integrations and the reliability work that keeps them running.
Experience
Northwind Logistics
Senior Software Engineer
Leads a five-person payments platform team processing 1.2 million monthly transactions. Reduced payment failure rates from 4.1% to 0.6% via idempotency keys and dead-letter queues. Migrated monolith to eight services, reducing deploy time from 42 to 6 minutes. Mentors engineers and manages design reviews.
Cedar Payments
Software Engineer
Developed a fraud-scoring service blocking $1.4M in fraud. Optimized API latency from 850ms to 190ms using read replicas and caching. Achieved PCI DSS Level 1 certification by automating evidence collection. Streamlined merchant onboarding from nine days to two.
Bluewave Systems
Junior Software Engineer
Rebuilt customer dashboard in React, improving FCP from 5.2s to 1.4s. Automated CI release process, reducing deployment time from two hours to 12 minutes.
What I work with
- TypeScript
- JavaScript
- Python
- Go
- SQL
- Node.js
- PostgreSQL
- Redis
- Kafka
- gRPC
- React
- Next.js
- AWS
- Docker
- Terraform
- GitHub Actions
- Distributed systems
- payment integrations
- observability
- CI/CD
Selected work
Ratekeeper
Open-source Redis-backed rate limiting library used in 400+ repositories, featuring benchmarked algorithms.
Education
BSc Computer Science
Cedars University
Certifications
AWS Certified Solutions Architect, Associate
AWS
Get in touch
- john.smith@example.com
- +971 50 555 0142
- Dubai, United arab emirates
- linkedin.com/in/johnsmith-example
- github.com/johnsmith-example
This is not a real person. John Smith is an example we invented to show what Portfocare builds.