Michael Pellegrin

Pelican Digital Pathways | Colorado, Remote

Independent software consultancy focused on architecture, modernization, and production software delivery. Worked across the full engineering lifecycle, from requirements and system design through hands-on implementation and deployment, while developing practical approaches to AI-assisted software delivery and building reusable engineering capabilities.

• Designed and built a .NET accessibility auditing platform with separate capture, analysis, enrichment, and reporting components. Used real-browser evaluation against published accessibility rules to produce detailed workbooks and narrative reports.
• Separated deterministic accessibility findings from AI-generated remediation guidance, keeping the core analysis reproducible while allowing optional local inference so sensitive page data could remain on the machine.
• Built a multi-agent software delivery system that coordinated specialized agents across research, architecture, test design, implementation, and review. Used explicit workflow states and human approval boundaries to keep long-running AI-assisted development controlled and auditable.

Allegion US | Golden, Colorado

Joined as a senior engineer and advanced to Senior Lead Software Engineer I, the highest occupied individual-contributor level in the software engineering organization. Led cloud architecture across product lines, identified cross-cutting platform concerns, and remained hands-on in implementation. During my first year, I helped build the monolithic system that brought a new platform into production. As the product portfolio expanded, I later led the architecture to unify three overlapping monoliths into a reusable, extensible platform built around shared event-driven services. Served as designated architect for secure mobile credential delivery and partnered directly with Apple and Google engineering teams.

• Defined the next generation of the platform's mobile credential architecture and built the Azure APIs behind enterprise delivery across BLE, NFC, Apple Wallet, and Google Wallet.
• Led the effort to unify three independently evolved production monoliths with substantial functional overlap into a reusable platform, defining shared service boundaries and moving common capabilities into event-driven services while preserving existing product delivery.
• Designed and directed a structured AI-assisted development workflow that extracted 14 production endpoints into a containerized microservice in eight days, compared with an estimate of more than six weeks using the prior approach.
• Served as technical lead for a five-engineer team and mentored engineers across experience levels in distributed architecture, API security, and DevOps automation.
• Authored C4 diagrams, technical roadmaps, and design artifacts that aligned technical direction across teams and clarified decisions before implementation.

Huron | Contract | Denver, Colorado

• Implemented user authentication with IdentityServer4 and built OIDC authentication and domain features for an Angular single-page application.
• Developed features in Xamarin.Forms applications and worked across C#, ASP.NET Core, and Azure DevOps.

Wax Robots | Denver, Colorado

• Designed and built production systems in .NET and Angular, designed REST APIs, and established CI/CD pipelines and deployment automation.

Community Systems work began through Wax Robots and later converted to full-time employment.

Community Systems | Denver, Colorado

• Designed and built distributed microservices covering service contracts, domain modeling, and the unit and integration test specifications behind them.
• Automated deployment, prioritized technical debt across legacy systems, and improved how those systems were managed and released.
• Built cross-platform mobile and single-page applications and mentored developers in object-oriented design patterns and automated testing.

Designed, built, published, and operated a daily puzzle game for iOS and Android, owning the product from initial architecture and implementation through production operation and continued development.

• Built the puzzle engine and deterministic daily generator, producing shared puzzles across three difficulty tiers with independent leaderboards.
• Implemented Auth0 authentication through a custom domain, with iOS Associated Domains and Android Digital Asset Links supporting password-manager compatibility across both platforms.
• Rebuilt the production iOS client from SwiftUI to Flutter and expanded the product to Android while retaining the existing Azure backend and identity architecture.