Julio Antequera Galiano - Senior Rails Engineer

Summary

Ruby on Rails engineer with 15+ years shipping product features end to end. Almost ten of them at RubiconMD, building the systems at the heart of the business (consult routing, collaborative workflows, secure search, access control) in regulated healthcare (HIPAA, HITRUST), and growing from backend engineer to Principal Engineer along the way.

Looking for a hands-on Senior individual contributor role building product, rather than org-wide scope. Remote since 2014, working EU hours with 3-4 hours of overlap with US Eastern time.

Skills

Backend: Ruby on Rails, Ruby, API Design (GraphQL, REST, OpenAPI), Relational Databases (PostgreSQL, MySQL), Background Jobs (Sidekiq), Search Engines (OpenSearch), Caching (Redis)
Frontend: Tailwind CSS, Bootstrap, Real-time UI (ActionCable)
Testing & Delivery: Testing (RSpec, Rails system tests, Cucumber, Cypress), CI/CD (GitHub Actions, CircleCI), Containerization (Docker), AWS, Observability & Monitoring (Datadog, Sentry), AI-Assisted Development (Cursor, Claude, Codex)
Security & Compliance: HIPAA, HITRUST, OWASP, Dependency Management (Dependabot)

Experience

Principal Engineer - RubiconMD

November 2016 - May 2026 | New York (US) - Remote from Seville (Spain)

RubiconMD connects primary care providers with medical specialists to democratize expertise.

Joined as a Backend Engineer in 2016 and was promoted to Senior Backend Engineer (2017), Backend Lead (2018), Staff Engineer (2019) and Principal Engineer (2024), always hands-on with no direct reports. Built core product systems in a scrum team on a Rails monolith (RSpec, Sidekiq), then moved to the Platform Team through the integration into Oak Street Health and CVS Health.

Product Engineering:

Built Roctomation, a rules engine routing consults to the right specialist: ~300,000 consults a year, 99% to a specialist able to reply on time, ~75% of reassignments automated. Still in production in 2026.
Led 6-7 engineers building a collaborative version of the main workflow for a major new client, scoped with Product and Design and shipped on time for its launch, on a new GraphQL API.
Led the build of search over encrypted data (OpenSearch, later PostgreSQL), so doctors could find patients and consults without downloading them, meeting encryption requirements.
Drove, with another engineer, a role-based access control (RBAC) system that opened the admin platform to Clinical, Finance and non-US Engineering teams, each limited to the data it needed.
Planned and led an 8-month merge of the main platform with a secondary product across all scrum teams, migrating ~12 clients and giving sales one onboarding route instead of two.
Built Rails screens with Bootstrap and Tailwind CSS, including real-time alerts (ActionCable) for the PHI-redaction tool, and contributed to the Angular SPA.

Security, Reliability & Developer Experience:

Set up and owned automated security updates (Dependabot) across all repositories: 84% of production vulnerabilities (CVEs) fixed within 4 hours of disclosure.
Automated compliance reporting, turning a weekly three-person meeting into a 5-minute task and saving dozens of hours of audit prep.
Cut CI build times to a third several times, retiring old features and fixing slow and flaky tests found with reporting tools built with AI assistants in hours instead of weeks.
Cut disaster recovery from ~90 to ~20 minutes with DevOps by reworking Rails credentials, and moved configuration to environment variables to ease containerization.
Kept the platform at 99.99%+ uptime, averaging under one critical (P0) incident a year, through code review, QA on every release and incident response.

Codebase Health:

Kept the decade-old monolith current: upgraded Rails 4.2 to 8.1 and Ruby 2.4 to 4.0, and led the move to modern frontend tooling (Propshaft, Tailwind CSS 4).
Modularized the most complex parts of the codebase with service objects and decorators, and moved page tests from Cucumber to Rails system tests.
Mentored ~12 engineers and set code review standards, CODEOWNERS and code coverage metrics.

Full Stack Ruby on Rails developer - CookiesHQ

January 2014 - July 2016 | Bristol (UK) - Remote from Seville (Spain)

Web agency: built startup MVPs and bespoke CRMs, greenfield to legacy, tested with RSpec, in direct contact with clients. My first remote position for a company abroad, as its only remote worker at the time.

Technical Writing:

Published 31 technical articles on the company blog (Ruby on Rails, MongoDB, frontend, testing, remote work), two of them featured in Ruby Weekly: full list

Projects

Redactinator - RubiconMD - Built the first version of the operations tool for removing patient data (PHI/PII) from consult attachments, with real-time alerts and one-click actions, cutting redaction from ~20 to ~3 minutes per consult to meet HIPAA constraints. Later led its integration with Roctomation.
Injectable Ruby Gem - Extracted and open sourced RubiconMD’s dependency injection library, removing its internals from the main codebase, and offering a unified and clean interface for service objects in Ruby applications. Used in production at RubiconMD and adopted by other companies; ~85,000 downloads and 34 GitHub stars - Actively maintained since 2019
Open Source Contributions - Bug reports and fix PRs for the OSS used at work, plus the Chiquito de la Calzada plugin for Faker (2020)

Additional Experience

Freelance Ruby on Rails Developer - Salumedia, Redradix, Emergya, Informage Studios (wound down after joining CookiesHQ) June 2013 - May 2014
Full Stack Ruby on Rails Developer - Wombytes November 2011 - April 2013
Embedded Systems C++ Developer - AERTEC and University of Seville’s Robotics Vision and Control Group May 2009 - November 2011

Education

MSc in Computer Science & Software Engineering (Ingeniería Informática Plan 97)

September 2002 - September 2009 | University of Seville (Spain)

Five-year BSc degree later officially upgraded to an MSc per the EHEA Bologna Process.

Final Thesis: Ubuntu-based Linux Distribution intended for children, “Guadalinex Infantil”.