Andrew DeFilippis
Systems Development Engineer · Greater Seattle Area
Open to engineering management, systems development, and software development roles.
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Summary
Systems Development Engineer with 11 years at AWS building and scaling global services. Focused on application development, infrastructure automation, and reliability. Designed reusable TypeScript AWS CDK constructs for cross-team use and built AI-powered operational tooling in Rust. Led infrastructure design for CloudWatch Observability Admin, region expansion across Amazon Dedicated Cloud and public AWS Regions, and CI/CD modernization. Experienced in leadership: mentoring engineers, leading design reviews and Sev2 incident response, and project-managing region launches across 4 teams.
Experience
Systems Development Engineer II Amazon Web Services
- Designed and built an internal Rust MCP server that lets AI agents run sensitive operational commands without exposing credentials, pull time-ranged logs and system state across AWS accounts, and suggest root causes and mitigations. Cut triage time from about 30 minutes to about 15.
- Created an AI "metarepo": one VS Code workspace across 50+ packages, each still its own Git repository, so AI agents can search the whole service (infrastructure, pipelines, tests, and business logic) at once.
- Architected infrastructure as code for CloudWatch Observability Admin in TypeScript CDK. Reusable constructs adopted across 50+ packages and 30+ pipelines. Mentored engineers on CDK patterns and led infrastructure design reviews.
- Automated region expansion, cutting per-region provisioning from days to hours across 17 region builds.
- Wrote Java canary and integration tests for the CloudWatch Logs S3 Tables integration, catching several late API issues before launch.
- Owned CI/CD end to end. Moved from legacy Ruby pipeline templates to centralized TypeScript CDK pipelines, reducing configuration drift and simplifying pipeline creation and management.
- Co-designed the donor region build process, making CloudWatch Logs available in new regions between 4 and 6 weeks before its dependencies were ready.
- Primary on-call for 6 production services. Led Sev2 incident response, post-incident reviews, and follow-up fixes.
Systems Engineer II Amazon Web Services
- Led API Gateway launches in 14 new AWS Regions and 3 new Amazon Dedicated Cloud regions, coordinating networking, security, and identity dependencies.
- Owned API Gateway region builds end to end as both project manager and engineer: planned and coordinated the work across 4 teams, then built, deployed, and launched the service in each new region.
- Automated key parts of the region build runbook with Python, Jinja, and ERB templates, cutting 2 weeks from each region build.
Cloud Support Engineer II Amazon Web Services
- First API Gateway subject matter expert in Seattle. Led global training for support engineers and wrote internal and public documentation.
Earlier experience
- Service Desk Specialist, MultiCare Health System, 2012 to 2014
- Junior Systems and Network Administrator, ReachONE Internet, 2011 to 2012
- IT Intern, Clover Park Technical College, 2010 to 2011
- Computer Technician, Washington State University, 2007 to 2008
Skills
- Languages
- Java, TypeScript, Bash, Ruby, Python, Rust
- Infrastructure
- AWS, AWS CDK, CloudFormation, Docker, Linux, macOS
- AWS services
- API Gateway, Lambda, CloudWatch, DynamoDB, S3, EC2, Auto Scaling, ELB, IAM
- Practices
- CI/CD, SRE, incident management, on-call, SLOs and error budgets, capacity planning, infrastructure as code, Git, Agile
- AI tooling
- Model Context Protocol (MCP) servers, AI agents, AI-assisted development workflows
- Learning
- Kubernetes, Terraform, Ansible
Education
Associate degree, Computer Networking and Information Systems Security, Clover Park Technical College, 2011