David Nix

CV / Resume

Hands-on Principal Software Engineer who turns ambiguous problems into reliable distributed systems, cloud platforms, data products, and AI infrastructure. Shipped systems supporting more than $100M in enterprise contracts for The Home Depot, UnitedHealthcare, Aetna, Costco, Kroger, and others.

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Technical Skills

Languages: Go · Python · Rust · Swift · SQL · Lua
Cloud & Platform: Kubernetes · Helm · Terraform · Ansible · Docker · GitOps · Flux2 · CI/CD · AWS · Google Cloud
Distributed Systems & Data: Kafka · NATS JetStream · gRPC · Redis · PostgreSQL · ClickHouse · DuckDB · BigQuery · SQLite · Redshift
AI & Inference: Claude Code · Codex · OpenCode · vLLM · Self-hosted model serving · Inference engineering · Agentic systems · Harness engineering
Mobile: iOS · Swift
Observability, Security & Compliance: Prometheus · Grafana · New Relic · Multi-region architecture · Disaster recovery · HITRUST · FedRAMP · HIPAA · SOC 2 · GDPR · CCPA

October 2023 – Present

Principal Software Engineer

MetaRouter

Enterprise customer data infrastructure operating in near real time.

● Build distributed systems handling 200K requests/second at 99.99% uptime
● Deliver custom integrations supporting contracts up to $2M ACV
● Resolved a critical data-duplication issue in three days, unblocking a $650K deal
● Maintain an elite incident rate of ~1 P0/SEV0 per quarter
● Lead architecture for 70+ deployments in customer clouds across three providers
● Automate worker deployment and DNS changes, shrinking operations from days to minutes or seconds
● Ship near-real-time OLAP analytics, cutting issue detection from hours to minutes
● Lead secure agentic AI adoption, increasing feature velocity without sacrificing reliability
● Manage and upgrade on-premises Kafka across 60+ Kubernetes clusters

Go Kubernetes Helm Redis Terraform gRPC Kafka AWS Google Cloud Prometheus New Relic SQLite Lua ClickHouse Agentic AI

April 2022 – September 2023

Staff Engineer

Strangelove Ventures

Open-source infrastructure for the Cosmos blockchain ecosystem.

● Led Cosmos Operator development, enabling three SREs to run dozens of HA blockchain nodes and cut on-call incidents by 50%
● Automated PVC expansion and stale-node replacement using disk thresholds and block-height drift
● Built a backup controller that safely paused disk writes, managed VolumeSnapshots and retention, and bootstrapped new volumes
● Gated Kubernetes rollouts on CometBFT sync status and centralized polling to keep reconciliation responsive at scale
● Added validator-sentry networking, per-node P2P/RPC services, address discovery, private peers, and persistent node keys
● Extended the operator across chains with automated setup, snapshot restore, custom home directories, and workload overrides
● Eliminated pod replacement loops and status races with resource-aware diffs, partial-failure recovery, and serialized updates
● Standardized GitOps deployment and Grafana/Prometheus observability across dozens of Kubernetes clusters

Go Rust Kubernetes Helm Kustomize Flux2 Terraform Google Cloud Prometheus Grafana SQLite

January 2020 – April 2022

Principal Software Engineer

MetaRouter

Enterprise customer data infrastructure operating in near real time.

● Consolidated legacy repositories into a monorepo, raising test coverage from ~0% to 80%+
● Introduced Terraform, eliminating errors from manual cloud-console changes
● Migrated dozens of vulnerable Node.js services to Go with zero downtime
● Built a system to replay hundreds of billions of events from object storage
● Implemented multi-region load balancing with automatic disaster-recovery failover
● Built warehouse ingestion with type inference and schema evolution

Go Kubernetes Helm Redis Terraform gRPC Kafka AWS Google Cloud Prometheus New Relic SQLite Lua

March 2015 – December 2019

Principal Software Engineer

CirrusMD

Healthcare platform for secure patient-provider messaging.

● Built HITRUST-compliant ETL for PHI of any size with versioning and encryption at rest
● Automated daily SFTP imports and complex eligibility reconciliation for thousands of patient records with Python and Pandas
● Protected highly sensitive behavioral health data with zero security incidents or breaches
● Built HITRUST/FedRAMP chat infrastructure delivering 500K+ messages/day with at-least-once delivery
● Architected a single iOS app for patients and physicians, enabling an average provider response time of two minutes or less
● Remediated critical security audit and pentest findings the same day
● Executed complex data migrations with zero downtime