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Evan Sagge

Staff Software Engineer

I am a staff-level software engineer with 18+ years of experience architecting and scaling distributed systems across HealthTech and FinTech. In my current role as a Staff Software Engineer at Rula, I lead the architecture and data foundations for provider onboarding and multi-state expansion, and ensure provider data related to their practice, credentialing, and payor enrollments is reliable and available across Rula services.

I specialize in shaping long-term technical direction, simplifying complex domains, and aligning engineering, product, and operations through clear communication and thoughtful design documentation. I place strong emphasis on mentorship, engineering quality, and building scalable, resilient systems that enable organizational growth.

Contact Info

Professional Experience

Apr 2024 - present
Technologies: Python, TypeScript, React, Kafka, PostgreSQL, AWS, SQS
Staff Software Engineer
  • Lead staff engineer for Provider Access; set architecture, data models, and onboarding/credentialing flows across Salesforce and internal systems.
  • Launched a data service as the source of truth for provider data, replacing Airtable and unifying onboarding for 3 core flows (therapy, prescriber, in-person scheduling).
  • Shipped multi-state provider data models that improved matching, credentialing, and directory experiences, increasing available provider supply by ~25% in states with fewer in-state providers.
  • Built pipelines syncing provider data with multiple systems (Airtable, Salesforce, internal services, provider/patient-facing services) to reduce data drift and operational load.
  • Implemented insurance-based matching rules with clear domain logic and comprehensive tests.
  • Designed and developed services that synchronizes data between Salesforce and internal services via Workato and prevents data drift between internal services and business applications.
  • Authored a 12-month architecture roadmap focused on event contracts, taxonomy evolution, and platform reliability.
Jan 2023 - Nov 2023
Technologies: Django, React.js, PostgreSQL, AWS, Stripe API, Twilio API
Staff Software Engineer
  • Led design and rollout of Cedar’s dispute-handling system, improving dispute accuracy and reducing resolution time by ~40%.
  • Migrated IVR systems to Twilio, improving scalability, raising payment-by-phone completions by 25%, and cutting onboarding time by 45%.
Aug 2020 - Jan 2023
Technologies: JavaScript, TypeScript, Node.js, Ember.js, PostgreSQL, AWS
Engineering Manager
Sep 2021 - Jan 2023
  • Managed a team of 8–11 full-stack engineers, scaling the team from 3 and coaching senior growth.
  • Established OKRs and aligned engineering execution with product strategy, improving delivery predictability.
  • Improved sprint processes and cross-team communication for more predictable delivery.
Staff Software Engineer
Aug 2020 - Sep 2021
  • Led development of 4 new healthcare service lines within one year.
  • Cut new service-line development time from 3–4 months to under 1 month through tooling and workflow improvements.
Jun 2019 - Jun 2020
Technologies: Ruby on Rails, React, MySQL, AWS, Redis
Staff Software Engineer
  • Designed a processor-agnostic payments architecture and introduced service-module patterns that improved team autonomy and maintainability within Procore’s monolith.
Sep 2016 - Apr 2019
Technologies: Django, Python, Celery, RabbitMQ, AWS, MongoDB, Kafka
Senior Software Engineer
  • Led development of Venmo’s ACH processing system, reducing downtime/on-call by ~50% and preventing ~$300k in annual losses.
  • Improved payments platform reliability via caching, database tuning, distributed processing, and compliant escheatment workflows.
Aug 2015 - Sep 2016
Technologies: Ruby on Rails, React, MySQL, AWS, Elasticsearch, Kubernetes
Senior Software Engineer
  • Improved candidate sourcing with follow-up workflows and enhanced search performance via a new data-aggregation and indexing pipeline.
Mar 2013 - Feb 2015
Technologies: Ruby on Rails, React, MySQL, AWS, Redis
Software Engineer
  • Designed the American Honors platform and evolved it into a distributed, service-oriented system.
May 2005 - Jan 2013
Technologies: Ruby on Rails, React, MySQL, AWS, Elasticsearch, MongoDB
Software Engineer
  • Built SaaS and mobile applications for clients, including leading development of the Infinite.ly social media management platform.

Consulting Experience

Jan 2022 - present
Technologies: Ruby on Rails, TypeScript, Vue.js, TailwindCSS, PostgreSQL, AWS, Heroku, Stripe API
Owner, Consulting Software Developer
Client Projects:
  • Giftly - https://www.giftly.com
    Technologies: Ruby on Rails, TypeScript, JavaScript, AngularJS, Vue.js, TailwindCSS, PostgreSQL, AWS, Heroku, Stripe API
    • Led multi-year redesign and modernization of Giftly’s consumer experience (buyer flows, checkout, redemption, account services).
    • Shipped new revenue features: multi-place gift guides, multi-item cart, gifting contacts, and calendar/event reminders.
    • Delivered A/B testing infrastructure and UX improvements that drove a 17.5% YoY conversion lift plus 8% from experiments.
    • Built fraud-review and support tooling, increasing investigation throughput by 40% and reducing backlog by 50%.

Core Skills

Technical Leadership
Architecture, System design, Roadmaps, OKRs, Domain modeling, Cross-team alignment
Backend Engineering
Distributed systems, Event-driven design, REST/GraphQL APIs, Domain-driven development
Frontend
React, TypeScript, Vue, Node.js
Languages
TypeScript, JavaScript, Ruby, Python
Infra & Data
PostgreSQL, MySQL, MongoDB, Redis, Elasticsearch, Kafka, SQS
Cloud & Tools
AWS, Heroku, Docker, Workato, Stripe API, Twilio API, TailwindCSS, Figma

Education

Ateneo de Manila University (Philippines)
B.S. Computer Engineering, 2005
Ateneo de Manila University (Philippines)
B.S. Physics, 2004