Ryan Jarnutowski
Available for Senior Positions

Senior Full-Stack Engineer & Software Architect

I design and ship reliable cloud systems that reduce cost, accelerate onboarding, and scale with clarity — from AWS-native microservices to developer platforms and automation.

80%
Cost reduction
75%
Faster onboarding
10×
Deploy frequency

I build systems that move business metrics

  • Modernize legacy workflows with event-driven, serverless architectures.
  • Ship faster with standardized IaC, environments, and golden paths.
  • Improve reliability & observability with clear ownership and automation.

Recent Experience

Senior Software Engineer — NYC Tourism

2023 – Present
  • Led AWS serverless platform (API Gateway, Lambda, DynamoDB) with SAM-based IaC.
  • Standardized CI/CD and environment strategy; accelerated onboarding by 75%.
  • Consolidated services to cut infra/runtime costs by ~80%.
More details

Software Architect — Prior Engagements

2018 – 2023
  • Designed multi-tenant microservices with SQS/SNS and event sourcing.
  • Introduced developer platform patterns that increased deploy frequency 10×.
  • Mentored teams on quality gates, testing, and observability best practices.

Technical Expertise

Architecture & Cloud

AWS (API GW, Lambda, DynamoDB, S3, CloudFront), IAM, VPC, caching, queues, events.

Backend

Node.js, TypeScript, Python; REST/GraphQL; testing, validation, performance.

Dev Experience

IaC (SAM), CI/CD (GitHub Actions), LocalStack, feature flags, templates.

Frontend

React, Astro, Tailwind; design systems; admin portals & dashboards.

IoT & Integrations

MQTT, Home Assistant, embedded controllers, telemetry, automations.

Observability

CloudWatch, structured logging, tracing, health checks & SLOs.

Exploring senior engineering & architecture opportunities

Let’s talk about how I can help you reduce cost, ship faster, and raise reliability.