Julian Matherson
Contact

Julian Matherson

Senior Software Engineer | Ruby on Rails | Product Engineering

Killeen, TX | Remote (US Central)

Phone: 254-423-1433

Email: jewelz@julianmatherson.com

GitHub: github.com/julianmatherson

Site: julianmatherson.com

Download résumé (PDF)

Summary

Senior Software Engineer with 6+ years building and operating production Ruby on Rails applications. Extensive Hotwire experience with Turbo and Stimulus includes financial simulation interfaces at Simplivisor and administrative tools at QuintEvents. Scaled a healthcare platform from roughly 800 to 6,000 active users. Own delivery through deployment and production support.

Technical skills

Core

Ruby on Rails · Hotwire · Turbo · Stimulus · JavaScript · HTML · CSS · React

Data & integration

PostgreSQL · Redis · JSON · REST APIs · Webhooks · Background jobs

Quality & architecture

RSpec · TDD · MVC · OOP · Authorization · Database constraints · Auditability · Performance tuning

Systems & delivery

Linux · Docker · Git · SSH · Aptible · AWS S3 · CI/CD · Production support

Experience

Senior Software Engineer | Phothera, formerly Daavlin Feb 2024 - Present | Remote

ClearLink healthcare and connected phototherapy device platform

  • Scaled a production Rails platform from roughly 800 to 6,000 active users. Maintained healthcare workflows and connected phototherapy device support.
  • Led the Daavlin-to-Phothera application rebrand. Updated user workflows and supporting documentation while preserving access for existing users.
  • Own HIPAA-regulated patient care workflows and administrative tools. Enforce access controls and maintain audit records.
  • Designed remote device-support tooling and secure Rails-to-device communication flows, enabling safer resets and maintenance with less engineering intervention.
  • Consolidated production and staging workloads onto the intended Aptible database and Redis services, eliminating duplicated infrastructure and avoidable platform spend.
  • Work with the CTO and other teams to define requirements. Resolve customer issues and verify changes through deployment.
Ruby on Rails Developer | QuintEvents Jan 2023 - Feb 2024

Ticketing and live-event operations

  • Shipped ticketing and event-management features in a production Rails application. Met release deadlines tied to live events.
  • Built interactive Rails interfaces with Hotwire. Used Turbo and Stimulus for administrative workflows.
  • Improved REST API endpoints and PostgreSQL queries powering internal operations tooling and external consumers.
  • Translated event-specific requirements from product and operations stakeholders into dependable releases.
Ruby on Rails Developer | Virtue Capital Management / Simplivisor Jan 2022 - Dec 2022

Financial-planning and scenario-simulation software for advisors and CPAs

  • Reworked the financial simulation engine from a small set of fixed options into JSON-configured scenarios, unlocking broader planning use cases for advisors and CPAs.
  • Tuned simulation performance to support interactive advisor workflows and faster review of client-facing projections.
  • Modeled financial events with traceable calculations. Built the simulation interface with Hotwire, using Turbo and Stimulus.
  • Reviewed financial calculations and interface behavior with the founding advisor.
Ruby on Rails Developer | Snapcell Jul 2021 - Dec 2021

Video-centered customer engagement and automotive messaging SaaS

  • Implemented newsletter and autoresponder workflows powering customer engagement in a production Rails product.
  • Refactored backend services for clearer ownership and maintainability as product usage and feature scope expanded.
  • Integrated third-party messaging and analytics APIs, shipping features on short release timelines without disrupting existing behavior.
Junior Ruby on Rails Developer | StartupDev / StadiumDrop Jan 2021 - Jun 2021

Concessions ordering platform integrated with professional sports applications

  • Contributed production Rails code to the REST API powering food ordering within the Dallas Cowboys application experience.
  • Helped maintain vendor integration behavior during live events for a product that generated more than $1 million in first-year revenue.
  • Supported deployments and release processes in a fast-moving startup environment under senior engineering review.
Ruby on Rails Apprentice | Abdullah Hashim / PerfectQuran Jun 2020 - Dec 2020

Reviewed open-source Rails development and practical engineering apprenticeship

  • Delivered Rails contributions under senior review. Read existing code and tested changes before submitting pull requests.

Selected engineering strengths

  • Product ownership: define requirements and deliver changes through production verification.
  • Regulated systems: protect healthcare records with enforced permissions and auditable access.
  • Operational engineering: investigate production problems and verify the fixes.
  • Hotwire: extensive experience building Rails interfaces with Turbo and Stimulus.