Rulian Estivalletti
Software craftsman — web developer, AI pragmatist, writer.
Software craftsman with 20+ years building and shipping full-stack web and mobile products — concept to production to scale — in regulated, high-stakes domains: healthcare, security, privacy, food. Deep in Laravel, React, and React Native, with a sharp eye for architecture. An early adopter of agentic development: 2+ years building daily with AI, Claude Code, Codex, and agentic workflows, with the experience to drive AI efficiently and safely.
Experience
Staff Engineer · Leasecake2025 — present
- Lead DevOps: CI/CD pipeline optimization and deployment automation.
- Primary owner of production debugging and reliability across the full stack.
Staff Engineer · Cloaked2021 — 2024
- Led the flagship client-facing application, built in Vue.
- Major contributor to a zero-knowledge, end-to-end encrypted authentication system.
- Part of engineering leadership driving roadmap and product requirements.
Senior Engineer · StealthBits2020 — 2021
- Led migration of a legacy Windows app to React/Electron as lead developer and UX designer.
- Moved the team from waterfall to modern, product-led agile.
Lead Senior Engineer · Tangelo2017 — 2020
- Founding team member; built a food-as-medicine platform from concept.
- Built enterprise order-management, inventory, and CRM systems.
Senior Engineer · Vitals2010 — 2017
- Lead engineer of a public site serving 10M+ unique users/month on HIPAA-compliant AWS.
- Drove adoption of Laravel, Elasticsearch, Solr, and MongoDB.
- Built ETL pipelines processing millions of healthcare datapoints daily.
Developer · Ego Id2005 — 2009
- Sole developer at an advertising agency; full-stack web across many client projects.
Selected independent work
BugJar privacy-first dev tool · bugjar.app
Bug reporting that records nothing until the user reproduces the bug and consents. Built solo — Laravel · Actions pattern · BDD · MIT SDK.
Paperwork team ops · paperworkapp.co
Operations software built on one idea — most teams need less process, not more. Built solo.
ShowTell AI product · showtell.ai
Demo videos from scripts, showcase pages from URLs — AI compressing workflow, not replacing taste.
Momentumm · Bonjour · WonderAB more at rulian.co
A collection of solo and open-source passion projects.
Skills
Agentic developmentearly adopter
Claude Code · Codex · OpenAI · Agentic development & app integrations.
Core
PHP20 yrs
Laravel12 yrs
JavaScript20 yrs
Node11 yrs
Frontend & mobile
Vue9 yrs
React10 yrs
Tailwind6 yrs
Livewire / Alpine7 yrs
React Native8 yrs
Data
MySQL / Postgres20 yrs
Redis12 yrs
MongoDB10 yrs
Solr / Elastic10 yrs
Practice
Spec-driven / BDD—
DevOps / CI-CD—
Actions-pattern arch.—
More details at rulian.co, references available on request