David Navarro

What I work with, and what I’ve shipped with it.

Grouped by area. Below that, the projects at Agero and Blue Apron that earned most of it.

Skill set.

  • AWS

    My core platform at Agero and Blue Apron, across multiple accounts.

    • S3
    • RDS
    • Aurora
    • ECS
    • EKS
    • EC2
    • Lambda
    • OpenSearch
    • ElastiCache
    • Route 53
    • Systems Manager
    • Parameter Store
    • ECR
  • Infrastructure as Code

    Terraform is the daily driver. CloudFormation and Ansible where I inherited them.

    • Terraform
    • CloudFormation
    • Ansible
  • AI & agentic engineering

    Agentic coding tools are part of how I ship now, and the applied side is my ML sandbox.

    • Claude Code
    • Codex
    • Agentic workflows
    • Claude
    • GitHub Copilot
    • HuggingFace
    • Fine-tuning
    • SageMaker
    • Bedrock
    • MLOps
  • Containers & orchestration

    EKS and ECS at both jobs, running distributed microservices across accounts and environments.

    • Docker
    • Kubernetes (EKS)
    • Helm
    • ECS
  • CI/CD & deployment

    CircleCI is my daily driver, GitHub Actions close behind. I authored the org-wide CircleCI Orb at Agero that replaced a paid deploy product.

    • CircleCI (custom Orbs)
    • GitHub Actions
    • Blue/green deploys
    • Canary deploys
    • Ephemeral environments
    • Jenkins (legacy)
  • Observability & reliability

    Datadog by default, on-call at both jobs, disaster recovery drills at Agero.

    • Datadog
    • CloudWatch
    • Splunk
    • PagerDuty
    • Rollbar
  • Security

    Hardened images, resolved 100+ Wiz findings, and own the IAM and WAF baselines.

    • Wiz
    • Snyk
    • WAF
    • IAM
    • Image hardening
    • Vulnerability mitigation
  • Networking & CDN

    VPC design, certificates, and DNS-driven traffic moves. CDN as code on Fastly.

    • VPC
    • DNS
    • Route 53
    • Cloudflare
    • Fastly
    • Certificate management
  • Databases

    Postgres and Aurora every day, plus Redis and OpenSearch migrations.

    • PostgreSQL
    • Aurora
    • MySQL
    • Redis (ElastiCache)
    • Elasticsearch / OpenSearch
    • MongoDB
    • DynamoDB
  • Languages

    Python and Bash for automation, Go for internal tooling, TypeScript on side projects.

    • Python
    • Bash
    • Go
    • TypeScript
    • JavaScript
    • Ruby
    • Groovy
  • Web & mobile

    Side projects keep me sharp on the application layer, end to end.

    • Next.js 16 (App Router)
    • React 19
    • Tailwind CSS v4
    • Motion
    • Supabase (Auth, Postgres, Realtime, RLS)
    • React Native (Expo)
    • Ruby on Rails
    • next-intl (i18n)
    • Vercel
    • Render

Work projects.

Kept short on purpose. Happy to walk through any of them on a call.

  • Cross-region disaster recovery

    Agero

    Migrated the whole platform from us-east-2 to us-west-2 and back again, production and staging, with under thirty minutes of downtime. Scripted end to end so the failover is a run, not a project.

    • Full region failover and failback, rehearsed annually rather than written down and hoped for
    • Automation scripts stand up ECS services, data stores and networking in the target region
    • Under 30 minutes of downtime across production and staging
    • Pipelines and DNS cutover handled in the same run, so traffic follows the infrastructure
    • ECS
    • Terraform
    • CircleCI (custom Orbs)
    • Route 53
    • RDS
    • Bash automation
  • AWS account vending

    Agero

    Self-service AWS accounts for other teams. A team requests one and gets it already inside the organisation, with permissions, IAM roles and networking in place, billing consolidated, and its pipelines ready to deploy.

    • New accounts land pre-provisioned with IAM roles, guardrails and a standard VPC layout
    • Everything under one organisation with consolidated billing and central policy
    • Terraform modules and CI/CD pipelines generated with the account, so a microservice can deploy on day one
    • Removes the ticket queue: teams self-serve instead of waiting on platform engineering
    • AWS Organizations
    • IAM
    • VPC
    • Terraform
    • CircleCI (custom Orbs)
    • ECS
  • OpenSearch instance upgrade

    Agero

    Upgraded production OpenSearch from r6g.xlarge to r8g.xlarge across every environment without downtime or data loss.

    • Zero downtime across all environments including production
    • Migrated storage from GP2 to GP3 and coordinated with reserved-instance purchase
    • 30% performance gain and 10% cost reduction
    • AWS OpenSearch
    • Terraform
    • AWS Reserved Instances
  • Ephemeral environments

    Agero

    On-demand environments spun directly from a PR to test features before merging, with a pre-warmed RDS pool for near-instant availability.

    • Pre-warmed RDS pool for fast provisioning
    • End-to-end CI/CD automation to stand up an env in minimum time
    • Cost-efficient, secure, hands-off cleanup pipeline
    • CircleCI
    • Terraform
    • AWS RDS
    • ECS
  • CircleCI Orb architecture

    Agero

    Designed and built the org-wide CircleCI Orb to replace HarnessCD as the deployment solution for ECS services.

    • YAML configuration templates for ECS services and task definitions
    • Reduced pain points in the previous deploy flow
    • Improved developer experience and standardized deploys across teams
    • CircleCI Orbs
    • ECS
    • YAML
  • “Herb” preview environments

    Blue Apron

    Preview environments that live inside the staging Kubernetes cluster, so feature branches can talk to real staging services.

    • Devs can test a feature branch against the real staging surface, skipping slow test runs when wanted
    • Integrates with existing CI/CD workflow, so there's no parallel system to maintain
    • Kubernetes (EKS)
    • Helm
    • Jenkins
  • Fastly CI/CD pipeline with Terraform

    Blue Apron

    Self-serve pipeline that lets developers manage Fastly (CDN) services via Terraform without needing Terraform expertise.

    • Plan-on-PR, apply-on-merge with safe gating
    • Better version control, fewer security risks
    • Terraform
    • Fastly
    • Jenkins
  • ElastiCache Redis migration

    Blue Apron

    Moved Redis instances to a different AWS account inside a strict 1-hour downtime window.

    • Mapped every dependent app and service in advance
    • Used Route 53 DNS records to switch traffic atomically
    • Snapshot + automated migration scripts to minimize human error
    • Hit the 1-hour downtime SLA
    • AWS ElastiCache
    • Route 53
    • Bash automation
  • Internal Go CLI tool

    Blue Apron

    Go-based CLI that gave developers an ergonomic interface to AWS, Kubernetes, and internal infra.

    • AWS login flow and resource access
    • Friendly Kubernetes management (restarts, logs, resource views)
    • Lookup tool for internal/external hostnames per app
    • Secrets and keys management via AWS Parameter Store
    • Go
    • AWS SDK
    • kubectl

Want to go deeper on any of these?

Happy to walk through the architecture and the trade-offs on a call.

Contact me