Mark Kreyman
Senior Software Engineer at eCommerce Friendly
Denver, Colorado, United States
Summary
👤
Senior🎓
Top SchoolMark Kreyman is a Senior Software Engineer with 11 years of experience who specializes in building reliable, scalable AI-driven automation and voice agents that run 24/7 for small and mid-sized businesses. He brings mission-critical engineering rigor from healthcare, streaming, and IoT systems—designing fault-tolerant distributed systems, real-time APIs, and high-performance integrations using Elixir/Phoenix, Ruby/Rails, and modern tooling. As founder of eCommerce Friendly since 2011, he focuses on replacing tangled toolchains with custom automation, conversational AI, and integrations that reduce operational overhead and capture missed revenue. Notably, he has architected FHIR/EMR integrations with advanced fallback and circuit-breaker patterns and tuned PostgreSQL-backed APIs serving hundreds of thousands of daily healthcare queries. Based in Denver, he combines deep backend performance expertise with a pragmatic, no-gimmicks approach to delivering cost-effective enterprise-grade automation to smaller teams.
11 years of coding experience
19 years of employment as a software developer
Bachelor of Science in Electrical Engineering Mechatronics Robotics and Automation Engineering, Bachelor of Science in Electrical Engineering Mechatronics Robotics and Automation Engineering at Kabardino Balkarian State University
English, Russian
Stackoverflow
131reputation
6kreached
5answers
0questions
Github Skills (34)
umbrella8
java7
database6
ruby-on-rails6
capistrano6
devise6
docker6
ruby6
migration6
git6
atom-editor6
docker-compose6
sql5
data-mapping5
postgresql5
Programming languages (4)
Github contributions (5)
mkreyman/trademarks
Jan 2018 - Aug 2018
Contributions:102 commits, 85 pushes, 9 branches in 6 months
mkreyman/community
Jan 2019 - Jan 2023
An umbrella app for various services and utilities used at a congregation/community
Contributions:30 commits, 19 PRs, 45 pushes in 4 years
umbrellacongregation
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