Njal Karevoll
Software Engineer at Elastic
Vestland, Norway
Summary
🤩
Rockstar🎓
Top SchoolNjal Karevoll is a Principal Software Engineer at Elastic with 15 years of experience building backend and cloud-native systems from API scaffolding to deployment automation. He blends deep Scala and Akka expertise with Kubernetes-centric DevOps, contributing to high-profile open-source projects such as spray (improving HTTP URI parsing) and Elastic's cloud-on-k8s work for Elasticsearch orchestration. Known for pragmatic, test-driven changes, he has implemented core controller logic, init container patterns, and service configuration improvements that bridge development and operations. Based in Vestland, Norway, he holds a Master’s in Computer Science from NTNU and brings a steady track record of shipping robust distributed systems in production. A detail-oriented engineer, he often surfaces subtle protocol and parsing edge cases that improve interoperability and resilience.
15 years of coding experience
Norwegian University of Science and Technology
Stackoverflow
671reputation
73kreached
9answers
0questions
elasticsearch
top-5%
Github Skills (30)
api-rest10
kubernetes10
api-design10
restful-api10
amazon-elasticsearch10
http10
url-parsing10
scala10
elasticsearchquery10
go10
aws-elasticsearch10
parse10
kubernetes-pods10
uri10
elasticsearch10
Programming languages (11)
Github contributions (5)
elastic/cloud-on-k8s
Oct 2018 - Oct 2019
Elastic Cloud on Kubernetes
Role in this project:
Back-end Developer & DevOps Engineer
Back-end Developer & DevOps EngineerContributions:1 review, 364 commits, 64 PRs in 1 year
Contributions summary:Njal's contributions focused on building out the API scaffolding for stack deployments, introducing key components for Elasticsearch cluster resources. The commits added cluster builders and updated the stack controller to include the necessary functions for Elasticsearch pods. This includes implementing the creation of init containers and adjusting service configurations.
kubernetes-operatorselastickibanakuberneteselasticsearch
spray/spray
Apr 2013 - Apr 2013
A suite of scala libraries for building and consuming RESTful web services on top of Akka: lightweight, asynchronous, non-blocking, actor-based, testable
Role in this project:Back-end Developer
Back-end DeveloperContributions:5 commits in 3 days
Contributions summary:Njal focused on improving the `spray/spray` library's HTTP URI parsing capabilities. They implemented changes to allow the parsing of unescaped ASCII characters, enhancing the library's flexibility. This involved modifying the `UriParser.scala` and `Uri.scala` files to accommodate a broader range of valid URI characters. Furthermore, they added tests in `HttpHeaderSpec.scala` and `UriSpec.scala` to validate these parsing improvements, ensuring correct functionality.
web-services-restfulon-topnon-blockingwebtransportwebclient
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