Ryan O’Shea Email & Phone Number

Plantation, Florida, Us

- Owning full-stack system architecture, AWS infrastructure, long-term technical planning, and cost optimization for two engineering teams of 30+ engineers.- Leading cross-team initiatives including a major Kubernetes consolidation effort across 10 teams.- Implementing CI/CD in both technology and process, solving complex engineering problems, guiding development teams, and leading the development of SPAs and microservices powering customer-facing Pet Health features on Chewy.com serving tens of millions of requests and impressions per week.- Mentoring ICs from entry-level to tech leads. Interviewing candidates regularly (2x/wk).- Understanding when to deliver customer value now vs. invest for the future.- Socializing what works, creating documentation and training, and gaining buy-in across teams.Recent work: Kubernetes on EKS, Helm, ElastiCache/Redis, Spring Boot w/ MVC & WebFlux on Java, Spring Security, React, TypeScript, Testing Library, Docker, Cucumber, JUnit, OpenAPI, Jenkins, Terraform, Next.js, GraphQL

Plantation, Florida, Us

Tech lead for Pet Health Storefront team owning path to purchase UX for Chewy’s industry-leading Pet Pharmacy and Veterinary Diet businesses. Led planning & development for Chewy Practice Hub’s “Buy from Your Vet” offering, allowing customers to buy prescription medications & food directly from their clinic as a seller listed on Chewy.com. Designed & implemented multiple large-scale architectural iterations as the feature matured through real-world user testing, including moving core UI rendering to SSR with a WCAG-compliant custom component, reducing load time by >3 seconds per page load in production.Rebuilt large chunks of Chewy.com’s backend Product Display, Cart, and Checkout pages to abstract implementation details via proper dependency injection, then wrote comprehensive unit tests, increasing test coverage by >60x.Worked closely with TPM and SDM to plan projects well in advance, identify implementation plans, and call out issues early. Ran biweekly grooming and wrote epics and tickets for teammates to pick up, while routinely owning the most complex pieces. Interviewed frontend and backend candidates regularly (2–3 per week) and helped develop question banks & leveling standards for the org.Stack: Containerized monorepo UI applications and services running multiregion active/active in AWS ECS Fargate and administered with Terraform. Vue frontend apps using VueX, Webpack, Sass and tested with Jest and vue-test-utils. Served by Kotlin Spring Boot, Stripes, and Jersey applications powering public/private REST and gRPC APIs and SSR for core Chewy.com pages. Consumed REST microservices via OpenAPI codegen, OkHttp, Retrofit, OAuth2 and gRPC. Testing in JUnit 5 and Mockk.

Boston, Ma, Us

Developed a new web app delivering the single most-requested product by Toast’s restaurant customers — enabling restaurant managers to pool and equitably redistribute workers’ tips according to a configurable policy.Contributed to design, implementation, testing, and code review at all levels of Toast’s single-page app stack, working closely with UX, PM, and QA from planning through production deployment.Helped bring tip pooling from early alpha to nearly feature-complete through a multi-stage preview program with live restaurant customer feedback.Stack: React front-end apps backed by RESTful Dropwizard microservices in Java and Amazon DynamoDB, plus expansive Kotlin unit and integration tests. Also leveraged: PostgreSQL, Guice, Swagger, JUnit, Play, Yarn.

Cambridge, Massachusetts, Us

Owned platform architecture, product development, technical review, deployment, and DevOps (alongside CTO) for Composable’s patented web-based enterprise data orchestration platform.Designed and implemented high-performance, multithreaded data pipelines enabling users to move, process, analyze, and visualize massive datasets across dozens of data store technologies and third-party APIs.Led a 2-engineer team responsible for improving usability through a complete redesign of Composable’s user interface, reducing churn and increasing customer engagement.Routinely bootstrapped automation and machine learning pipelines with dedicated web apps for 2–3 month pilot programs at prospective clients. Transitioned these into production systems which saved clients millions of dollars per year in operating costs over their previous workflows.Replaced ETL systems in client environments with fully-automated Composable workflows, often in a forward-deployed setting.Managed and built secure systems dealing with HIPAA-governed Protected Health Information and Personally Identifiable Information.Stack: .NET back-end infrastructure in C# backed by SQL Server and Entity Framework. AngularJS single-page apps written in TypeScript and Sass. Also leveraged: WCF, Google Cloud Platform, Microsoft Azure, Gulp, NuGet, ASP.NET.

Cambridge, Massachusetts, Us

Burlington, Massachusetts, Us

Developed firmware applications on ARM and PIC microcontrollers governing low-level sensor and battery management systems for large-scale fully autonomous robotic automation solutions for industrial and commercial environments. Supported Vecna’s Robotics Logistics Solutions division via design of next-generation robotics hardware, troubleshooting electrical systems, and development of firmware for device communications over bus protocols (I²C, CAN) and robot configuration over serial interfaces.

Philadelphia, Pa, Us

Supported the Commercial Voice Product Solution Engineering team at Comcast Business. Designed and developed a complete, end-to-end solution for handling complex telephone directory listings and reducing operational costs: a dynamic AngularJS web app with supporting Java/PHP web services and MongoDB database intended for a user base of 20+ million existing commercial customers; successfully demonstrated to relevant business/engineering leads and prepared for continuation by another team. Conducted user experience design work as part of a team piloting an innovation project with future market presence and revenue/branding implications. Built a tool which automated reporting of sales statistics for the Business VoiceEdge™ product companion mobile applications.

Campbell, Ca, Us

Designed and taught 7 week-long courses in programming with Java for students age 12 to 17. Topics included basic programming concepts, inheritance, polymorphism, error catching, classes, sorting & searching, recursion, basic data structures, and graphical interfaces in Swing. Each student designed and produced a final project meeting high standards for proficiency.

Devon, Pennsylvania, Us

Designed and taught series of courses that engaged more than 50 pre-high school students in web development with HTML & CSS, basic programming in Java, and computer animation in Processing.org framework.

Planned, built, prepared upgrade for online Drupal-based website to showcase MET-lab operations and research. Assisted in research projects related to machine listening & music information retrieval. Acted as camp counselor during MET-lab’s Summer Music Technology program, which educated 20 high-achieving high school students using an innovative, hands-on approach to music production and analysis, digital audio, and related technologies.

Bachelor Of Science In Engineering, Electrical Engineering

Education record