Malte Isberner
Member Of Technical Staff at Prophet Security
Bochum, North Rhine-Westphalia, United States
Summary
🤩
Rockstar🎓
Top SchoolMalte Isberner is a seasoned back-end and security-focused software engineer with 13 years of experience building and hardening cloud-native systems, currently a Member of Technical Staff at Prophet Security in Bochum. He holds a PhD in Computer Science and has blended research-grade rigor with hands-on product engineering across roles at Gretel.ai, Red Hat, StackRox and Google. Malte contributes to notable open-source projects—such as improving security and RBAC in the StackRox Kubernetes Security Platform and optimizing the planetscale vtprotobuf compiler—demonstrating expertise in secure distributed systems and high-performance Go code generation. He repeatedly bridges academia and industry, turning formal verification and automata-learning research into practical security and infrastructure improvements. Known for digging into tricky zero-value and RBAC edge cases, he brings a pragmatic, detail-oriented approach to reliability and performance.
13 years of coding experience
12 years of employment as a software developer
Doktor (Ph.D.) Informatik, Doktor (Ph.D.) Informatik at TU Dortmund University
English, German
Github Skills (18)
kubernetes10
protocol-buffers10
it-security10
codegen10
security10
go10
optmization10
performance-optimization10
optimisation10
kubernetes-pods10
protobuffer10
protobuf10
grpc10
optimization10
apidoc9
Programming languages (13)
Github contributions (5)
stackrox/stackrox
Aug 2018 - Nov 2022
The StackRox Kubernetes Security Platform performs a risk analysis of the container environment, delivers visibility and runtime alerts, and provides recommendations to proactively improve security by hardening the environment.
Role in this project:
Back-end Developer & Security Engineer
Back-end Developer & Security EngineerContributions:307 reviews, 993 commits, 92 PRs in 4 years 3 months
Contributions summary:Malte primarily contributed to the back-end functionality of the StackRox Kubernetes Security Platform, addressing vulnerabilities and enhancing access control mechanisms. Their work included implementing license management features and fixing bugs that led to license activation failures. They also made changes to security-related areas by fixing RBAC tests, enabling support for sensor and central communication, and adding new functionalities for more secure network policies.
containerscheckliststackroxsecurityrisk
planetscale/vtprotobuf
Aug 2022 - Aug 2022
A Protocol Buffers compiler that generates optimized marshaling & unmarshaling Go code for ProtoBuf APIv2
Role in this project:Back-end Developer
Back-end DeveloperContributions:2 reviews, 11 commits, 7 PRs in 8 days
Contributions summary:Malte's contributions primarily involve enhancing the `vtprotobuf` compiler, which generates optimized Go code for Protocol Buffers. They added a `clone` option to the compiler for creating efficient object clones within the generated code. The user also addressed potential issues related to zero-value handling in maps and oneofs within the generated code. Additionally, they focused on optimizing the code by using direct casting in several areas, reducing unnecessary function calls for performance.
golangprotocol-bufferscodegenprotobufgrpc
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