Julian Matherson
Contact

Available for senior product engineering roles

Senior Software Engineer | Product Engineer

I build and maintain Rails products that people use under real operational pressure. My recent work is ClearLink: patient records, prescription workflows, documents, messaging, admin tools, and connected phototherapy device support. Before that I worked on event ticketing, financial-planning simulations, automotive messaging, sports ordering, and early open-source Rails work. I am best in product teams that need calm debugging, practical architecture, and code that is easy for the next engineer to change.

Portrait illustration of Julian Matherson

Current focus

  • Current work centers on ClearLink, a HIPAA-conscious phototherapy platform.
  • Production web features across patient records, prescriptions, messaging, documents, and admin tooling.
  • Connected medical device workflows, secure access, logs, files, and operational state.
  • Senior engineering work where product judgment, maintainable code, and reliability matter.

Testimonials

Core stack

Ruby on Rails PostgreSQL Redis Hotwire REST APIs Secure workflows Linux AI-assisted development

Experience

Senior Software Engineer | Phothera, formerly Daavlin

Healthcare and phototherapy software platform serving clinicians, patients, operations teams, and connected medical device workflows.

Feb 2024 - Present | Remote / Texas

  • Own and extend production Ruby on Rails features for ClearLink, including patient records, prescription workflows, device operations, admin tooling, messaging, and document handling.
  • Build and maintain workflows that connect the Rails application to medical device behavior, internal support needs, and infrastructure concerns such as secure access, logs, files, and operational state.
  • Implemented remote device support tooling that helps operations teams perform safer resets and maintenance actions with less manual intervention.
  • Partner with CTO, device engineering, support, and operations stakeholders to convert ambiguous platform needs into scoped Rails changes that can ship safely.
  • Support rebrand and platform transitions while preserving production reliability for users already depending on the system.
  • Use AI-assisted development carefully for code review preparation, implementation planning, documentation, test case generation, and release notes without delegating ownership of correctness.

Ruby on Rails Developer | QuintEvents

Event management, ticketing, upgrade, and operations software supporting live event schedules.

Jan 2023 - Feb 2024

  • Developed event management, ticketing, and upgrade flows in a production Ruby on Rails application.
  • Used Hotwire and Stimulus to ship interactive interfaces while keeping the stack Rails-centered and maintainable.
  • Improved API endpoints and database queries used by internal tooling and external consumers.
  • Worked with product and operations staff to align technical changes with event requirements, deadlines, and release windows.

Ruby on Rails Developer | Virtue Capital Management / Simplivisor

Financial planning and simulation platform for financial advisors and CPAs.

Jan 2022 - Dec 2022

  • Built Ruby on Rails features for Simplivisor, a financial planning application used to model advisor scenarios and client-facing projections.
  • Reworked the simulation engine to support JSON-configured scenarios instead of a small set of fixed planning options.
  • Improved simulation performance enough to support interactive use and faster review by advisors.
  • Modeled cash flows, annuities, and time-based financial events in a way that kept results traceable and understandable.
  • Worked directly with the founding advisor to validate financial logic, edge cases, and presentation of results.

Ruby on Rails Developer | Snapcell

Video-centered customer engagement and messaging software for the automotive industry.

Jul 2021 - Dec 2021

  • Implemented newsletter and autoresponder features in a Ruby on Rails product used for customer engagement.
  • Refactored backend services to improve maintainability as product usage and feature surface area increased.
  • Integrated external messaging and analytics services used by customer-facing workflows.
  • Released features on short timelines while preserving existing behavior in a live SaaS product.

Junior Ruby on Rails Developer | StartupDev / StadiumDrop

Concessions ordering platform integrated into sports venue and team application workflows.

Jan 2021 - Jun 2021

  • Contributed to the REST API supporting food ordering inside the Dallas Cowboys application experience.
  • Worked with an external vendor to keep integration behavior stable during live event conditions.
  • Assisted with deployments and release processes in a startup environment.
  • Wrote production Ruby on Rails code under senior developer review.

Ruby on Rails Apprentice | Abdullah Hashim / PerfectQuran

Faith-based Rails application and reviewed open-source learning work.

Jun 2020 - Dec 2020

  • Apprenticed under a senior Ruby on Rails developer with emphasis on practical Rails development.
  • Contributed to reviewed open-source Rails work while learning MVC structure, Git branching, pull requests, and testing basics.
  • Built early discipline around reading existing code before changing behavior.

Selected work

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