Justin Renneke
Engineering Manager - Application Platform
Boston, Massachusetts, United States
Summary
👤
Senior🎓
Top SchoolJustin Renneke is an engineering manager based in Boston with a decade of experience building and leading teams that deliver resilient, scalable distributed systems and developer platform services. Currently at Cisco/Duo Secure, he leads efforts to harden Duo’s primary MFA service while improving the internal developer experience, combining hands-on architecture with people-first management. Previously he managed geographically distributed full‑stack teams at Perficient delivering high-traffic, multi‑locale web experiences, balancing technical contributions with roadmap planning and cross-functional collaboration. He prioritizes psychological safety and growth, coaching engineers into high-performing, inclusive teams that drive measurable business impact. A practical technologist by training (BS in Computer Science) who surfaced early experience integrating cloud infrastructure and ML prototypes at Esri, he brings both production rigor and curiosity to platform engineering challenges.
10 years of coding experience
2 years of employment as a software developer
University of Missouri
Github Skills (2)
capstone7
collaboration2
Programming languages (1)
Github contributions (5)
JustinRenneke/justinrenneke.github.io
Feb 2016 - Sep 2017
Contributions:125 pushes, 3 branches in 1 year 7 months
JustinRenneke/OOP-LanguageComparison
Apr 2017 - Apr 2017
Contributions:8 pushes, 2 branches in 5 days
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