S Leister

Durango, Colorado, United States

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Summary

🤩

Rockstar

🎓

Top School

S Leister is a seasoned software engineer and entrepreneur with 11+ years of focused experience building high-reliability systems and leading engineering teams from pre-sales to product delivery. Currently a managing partner at WiseClouds and co-founder of FlexVertex, he blends deep systems and database expertise with startup-level product strategy, including work on an "AI substrate and state solution." He has a long track record in real-time, simulation, and enterprise software dating back to FlightSafety and early embedded/graphics work, and contributed security and auditing features to the widely used OrientDB multi-model database. Comfortable wearing founder, consultant, and director hats, he has repeatedly shipped core platform capabilities—often in performance- and security-critical contexts. Based in Durango, Colorado, he brings a practical mix of hands-on coding, architecture, and business leadership that helps translate complex technical requirements into auditable, production-ready systems.

11 years of coding experience

18 years of employment as a software developer

Broken Arrow High School

Computer Science, Computer Science at The University of Tulsa

java, c#, c++

Github Skills (14)

orientdb10

javas10

databases10

user-authentication10

authentication10

password-manager10

relational-databases10

database-design10

1password10

sql-database10

java10

database10

password-vault10

security10

Programming languages (3)

JavaCSSHTML

Github contributions (5)

orientechnologies/orientdb

Apr 2015 - Feb 2019

OrientDB is the most versatile DBMS supporting Graph, Document, Reactive, Full-Text and Geospatial models in one Multi-Model product. OrientDB can run distributed (Multi-Master), supports SQL, ACID Transactions, Full-Text indexing and Reactive Queries.

Role in this project:

Back-end Developer / Database Engineer

Contributions:93 commits, 71 pushes, 6 branches in 3 years 10 months

Contributions summary:S has contributed to the OrientDB database, specifically focusing on security enhancements and core functionality. Their commits include fixing issues, refactoring and adding new security features and extending capabilities to existing code. Key areas of contribution include implementing and maintaining auditing, password validation and authentication features, and the system database management.

dbmsrdbmsindexingrelational-databasesreactive

orientechnologies/orientdb-labs

Mar 2016 - Sep 2016

Contributions:15 commits, 15 pushes, 11 comments in 6 months

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