Martti Von Hertzen
Senior Software Engineer at Gofore
Tampere, Pirkanmaa, Finland
Summary
👤
Senior🎓
Top SchoolMartti Von Hertzen is a senior software engineer in Tampere with roughly 20 years' experience building enterprise Java systems and a decade of focused professional experience in backend and distributed architectures. He blends deep Java expertise with a passion for functional programming and Scala, contributing to the well-regarded Vavr functional library (implementing collection operations and core data-structure improvements). Martti has designed and implemented high-throughput, real-time systems—from in-memory distributed analytics at Nokia Siemens to emergency dispatch communications and electric vehicle charging platforms—often using Java, Scala, Akka, and integration tooling. Lately he’s been pivoting toward event-driven microservices and cloud-native tooling, exploring Kafka, Kubernetes, gRPC, Prometheus and YugaByteDB to build observable, container-orchestrated systems. Known for pragmatic designs grounded in solid data-structure and performance understanding, he also brings hands-on experience with telecom protocols (SIP, TETRA) and security-conscious integration patterns.
10 years of coding experience
10 years of employment as a software developer
Master of Science (M.Sc.), Computer Software Engineering, Master of Science (M.Sc.), Computer Software Engineering at Tampere University of TechnologyHigh school, General Studies, High school, General Studies at Lycée International de Ferney-Voltaire
Finnish, French, English
Github Skills (8)
immutable-collections10
javas10
stream10
functional-programming10
java10
tree10
data-structure9
data-structures9
Programming languages (10)
Github contributions (5)
vavr-io/vavr
Nov 2015 - Mar 2016
vʌvr (formerly called Javaslang) is a non-commercial, non-profit object-functional library that runs with Java 8+. It aims to reduce the lines of code and increase code quality.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:31 commits, 11 PRs, 67 comments in 4 months
Contributions summary:Martti primarily contributed to the `vavr-io/vavr` project, focusing on the implementation of `unzip3` functionality in the `Tree` and `Stream` data structures, aligning with the project's functional programming paradigm. The user also made changes in `HashArrayMappedTrie`, `TreeSet` and other classes, which indicates an understanding of the underlying data structures within the Vavr library. Further modifications included the addition of methods like `startsWith`, `endsWith`, and `reverseIterator` on different sequence types, along with scan implementations, emphasizing work on core collection classes.
functional-programmingjava-8profitcode-qualityjava8
javactic/javactic
Nov 2015 - Feb 2018
Java port of Scalactic
Contributions:216 commits, 2 PRs, 182 pushes in 2 years 3 months
javascala
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