Kyle Jeon

Kyle Jeon

Mentor
Rising Codementor
US$10.00
For every 15 mins
ABOUT ME
Full Stack Engineer with 4+ years of experience
Full Stack Engineer with 4+ years of experience

I’m a Senior Software Engineer with 8+ years of experience building full-stack Ruby on Rails and React applications, backend APIs, third-party integrations, automated workflows, and user-facing products. I’ve spent much of my career working on complex, high-impact systems where reliability, performance, and data integrity are important.

I’m especially effective in environments where projects move quickly, requirements are still evolving, and teams need someone who can ramp up fast without heavy oversight. I’m comfortable working independently, turning ambiguous product or operational needs into practical implementation plans, identifying technical tradeoffs and edge cases, and delivering maintainable production software.

I bring a practical, ego-free, drama-free approach to engineering work: communicate clearly, collaborate effectively with teams and stakeholders, make progress quickly, and leave the codebase better than I found it.

Eastern Time (US & Canada) (-04:00)
Joined June 2020
EXPERTISE
9 years experience
9 years experience
9 years experience
9 years experience

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EMPLOYMENTS
Senior Software Engineer
Journey Clinical
2023-11-01-2026-04-01

Senior Software Engineer building full-stack Ruby on Rails and React systems for healthcare workflows, with a focus on complex product...

Senior Software Engineer building full-stack Ruby on Rails and React systems for healthcare workflows, with a focus on complex product experiences, backend/API integrations, data integrity, and operational automation.

Owned a range of projects from planning through production, with high-impact examples including a custom prescriber workflow with customized React components and complex state management, used to submit 50,000+ clinical notes, an external Clinical Notes AI integration that reduced average form completion time by roughly 60%, and an Apero webhook/API billing automation that reduced manual operations work from roughly 20 hours/week to under 1 hour/week.

Worked closely with product, operations, and stakeholders to turn ambiguous requirements into reliable, maintainable software for business-critical healthcare workflows.

HTML/CSS
SQL
Ruby on Rails
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HTML/CSS
SQL
Ruby on Rails
TypeScript
React
JavaScript
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Senior Software Engineer
GeneDx
2019-09-01-2023-08-01

Senior Software Engineer building provider and patient-facing Ruby on Rails and React systems for a high-volume healthcare platform, w...

Senior Software Engineer building provider and patient-facing Ruby on Rails and React systems for a high-volume healthcare platform, with a focus on performance optimization, backend workflows, asynchronous processing, and data-heavy product experiences.

Owned and contributed to a range of product, backend, and platform projects, with high-impact examples including reducing a core provider/patient dashboard’s initial load time from roughly 30 seconds to under 5 seconds through a complex customized SQL query, asynchronous loading, batching, and Redis caching; integrating Sidekiq background jobs for long-running workflows, including user data exports with real-time progress tracking that replaced blocking downloads previously taking 20+ minutes; and building CSV/Excel bulk-order tooling that helped providers submit high-volume patient test orders more efficiently.

Worked across product, engineering, QA, and platform teams to improve performance, reduce manual provider workflows, support data-platform migrations, and deliver reliable features in a HIPAA-constrained production environment.

HTML/CSS
SQL
Ruby on Rails
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HTML/CSS
SQL
Ruby on Rails
TypeScript
React
JavaScript
View more