Maya Rodriguez

Senior Software Engineer
[email protected]/(415) 555-0142/San Francisco, CA/linkedin.com/in/mayarodriguez/github.com/mayarodriguez

June 7, 2026

Daniel Okonkwo
Director of Engineering, Platform
Meridian Financial Technologies
88 Kearny Street, San Francisco, CA 94108

Dear Mr. Okonkwo,

The hardest part of moving money isn't the happy path — it's the duplicate charge that slips through at 2 a.m. under load. I spent the last three years designing for exactly that edge: at Lumen Payments I built an idempotency framework that was adopted org-wide and eliminated duplicate-charge bugs across 12 teams. When I read that Meridian is scaling its payments platform, that's the kind of problem I want to be in the room for, which is why I'm writing about your Senior Platform Engineer opening.

My instinct is to make reliability measurable. I led the migration of Lumen's payments ledger from a monolith into six Go microservices, cutting p99 latency 42% while the system grew to handle 50M+ daily transactions. Earlier, at Northwind Analytics, I built a Kafka-based real-time event pipeline running 2B events/day at 99.99% uptime, then trimmed cloud spend 35% ($1.2M/yr) by rightsizing services and adding autoscaling. I treat performance and cost as first-class features, not cleanup work.

Steady systems come from clear contracts: idempotent writes, an RFC before the merge, and observability you actually trust.

Just as important to me is how a team ships. I mentored five engineers at Lumen and introduced an RFC process that cut production incidents 30% year over year — the kind of leverage where one reviewed design saves a dozen pages. I work primarily in Go, Python, and TypeScript across Kubernetes, AWS, and PostgreSQL, and I hold the AWS Solutions Architect – Professional certification. A platform team building for scale and correctness is precisely where that toolkit pays off.

I'd welcome the chance to talk through how Meridian thinks about latency, idempotency, and on-call health, and where I could contribute first. Thank you for your time; my resume is enclosed, and I'm happy to share design docs or walk through any of the systems above.

Best regards,

Maya Rodriguez

Senior Software Engineer · AWS SA – Professional