Mark Ratjens
Technical Founder at Wispera AI
Yamba, New South Wales, Australia
Summary
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SeniorMark Ratjens is a seasoned technical founder and software leader with 13 years of focused experience building secure, pragmatic applications and teams from the ground up. He combines hands-on engineering in Ruby on Rails and Flutter with deep expertise in prompt engineering, generative AI strategy, and prompt management tooling at Wispera AI and as a long-term consultant. Mark has repeatedly taken failing projects and legacy monoliths to stable, scalable products—most notably slicing a monolithic Rails app into well-coupled engines and steering PurchasePlus through a successful architectural recovery. His background spans privacy-focused mobile security, fintech integrations, geo-spatial LLM platforms, and platform orchestration for multi-cloud deployments, reflecting a practical bias toward simplicity and durable engineering. Based in Yamba, Australia, he pairs entrepreneurial instincts with a mentor’s approach to hiring and team development, often prioritising junior talent and cross-timezone Agile practices. A less obvious strength is his knack for translating messy business requirements into minimal technical surfaces that reduce cost, risk, and operational complexity.
13 years of coding experience
37 years of employment as a software developer
English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (7)
controller5
api5
activemodel4
rails3
ruby3
ruby-on-rails3
game-engine2
Programming languages (6)
Github contributions (5)
MarkRatjens/Spaces
Dec 2019 - Sep 2023
Contributions:935 pushes, 156 branches in 3 years 9 months
habanerohq/super_resources
Dec 2012 - Jun 2016
Contributions:60 commits, 2 PRs, 16 pushes in 3 years 6 months
controller
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