Mario Scalas
Principal Architect at Houghton Mifflin Harcourt
Dublin, Ireland
Summary
👤
Senior🎓
Top SchoolMario Scalas is a Principal Architect with over a decade of experience designing Java-centric backend systems, secure APIs, and cloud-native infrastructures, currently leading architecture at Houghton Mifflin Harcourt in Dublin. He combines strong academic grounding (PhD in Computer Science) with hands-on roles at AWS and consultancy experience in banking, bringing pragmatic “just enough architecture” and test-driven micro-design to complex integration challenges. A longtime advocate of agile and lean practices, he coaches teams on Kanban/Scrum, CI/CD pipelines and delivery tooling (Maven, Artifactory, Atlassian), while driving container orchestration and serverless adoption on AWS. His background spans research-to-production projects across document management, SaaS and meteo-marine forecasting, demonstrating an ability to translate experimental results into business value. Colleagues describe him as a developer-architect hybrid who blends technical leadership with code-level craftsmanship and disciplined release practices. Despite focusing on backend systems, he maintains a continuous curiosity for new domains and platforms, leveraging a common toolset to explore diverse application areas.
10 years of coding experience
16 years of employment as a software developer
Ph.D. Computer Science, Ph.D. Computer Science at Università degli Studi di BariHigh School diploma Informatics, High School diploma Informatics at ITIS G. Giorgi, Brindisi, Italy
English, Italian
Stackoverflow
35reputation
3kreached
2answers
3questions
Github Skills (44)
java9
spring9
spring-boot9
aws8
reactive7
container7
coding7
networkx7
python7
eclipse6
wso2-api-manager6
osgi6
configurations6
wso26
typescript6
Programming languages (7)
Github contributions (5)
scalasm/my-python-kata
Apr 2022 - Feb 2023
To learn a language, better to practice it - the Python way!
Contributions:1 release, 102 commits, 59 PRs in 9 months
pythondevpython3containerkata
scalasm/zoorl
Jun 2022 - Oct 2024
Serverless URL shortener service
Contributions:13 PRs, 28 pushes, 6 branches in 2 years 4 months
shortenershortener-serviceserverlesstinyurlurl-shortener
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