Senior Consultant
2018 - PRESENTInstaclustr- Developed Instaclustr's PaaS offerings for Cassandra and Spark.
- Helped Instaclustr clients successfully deploy and optimize Apache technologies such as Cassandra, Spark, and Kafka.
Technologies: Cassandra, Kafka, Spark, JavaSenior DevOps Engineer
2015 - 2017CloudPassage- Served as a data architect which entailed optimizing the Cassandra data model and tuning multiple Cassandra clusters.
- Solved production outages and created monitoring systems; as an SRE.
- Wrote the infrastructure code in Chef and Terraform to automate deployments, testing, and configuration changes.
- Hardened cloud systems through code auditing, penetration testing, patch management, and enforcing the encryption of data at rest and in transit.
- Created numerous tools and scripts to automate common forensic tasks such as tracking Chef server changes or updating user ACLs.
Technologies: Chef, Ruby, Python, AWS, Rackspace, Redis, Elasticsearch, Cassandra, PostgreSQL, Terraform, Spark, Kubernetes, DockerSoftware Engineer
2010 - 2014Knewton- Wrote unit and integration tests for Java services.
- Helped develop a student event microservice in Java.
- Created a deployment tool in Python that leveraged AWS API's (Boto library), Chef, and CloudFormation to simplify environment creation.
- Automated test environment creation in AWS and served as an SRE during my tenure as a systems engineer.
- Served as the deployment engineer for Java services and managed the Jenkins servers.
Technologies: Java, Python, Scala, AWS, Cassandra
Java Developer in Tokyo, Japan
Member since February 13, 2018
Jonathan is an experienced DevOps engineer based in Tokyo and New York. He's worked for a number of startups building their infrastructures and improving security. He's extremely knowledgeable about machine learning, data analysis, infrastructure development, and data layer optimization. One of his best qualities is his knack for quickly learning new things which is why he landed in DevOps because it is the best field for trying new technologies.
Jonathan is now available for hire
Portfolio
- InstaclustrCassandra, Kafka, Spark, Java
- CloudPassageChef, Ruby, Python, AWS, Rackspace, Redis, Elasticsearch, Cassandra...
- KnewtonJava, Python, Scala, AWS, Cassandra
Experience
- Java, 7 years
- Cassandra, 7 years
- Apache Kafka, 7 years
- Python, 7 years
- Apache ZooKeeper, 6 years
- Docker, 4 years
- Spark, 3 years
- Terraform, 2 years
Availability
Part-time
Preferred Environment
Linux, Git, Python, IntelliJ with Java
The most amazing...
...thing I've done was to automate the software environment (creation/deletion) for a company which saved tens of thousands of dollars—simple but satisfying work.
Employment
Experience
- Melanippe (Development)https://github.com/therenegadeoffunk/melanippe
A Cassandra profiling tool that was written in Python. It is a work-in-progress. Currently, all it does is give information about table configuration and schema. It's easier to use than cqlsh or NodeTool and when finished will have more useful features.
- Risk vs. Reward: A Guide to Understanding Software Containers (Publication)Software delivery has come a long way. And, somewhere between the transition from physical media to software containers, we have changed the way we try to manage them. In this article, Toptal Freelance Software Engineer Jonathan Bethune explores how software containers have motivated us to treat servers as more dispensable, and the risks and rewards involved.
Skills
Languages
Python, SQL, Java, Ruby, R, Go, Clojure, Rust, C, HaskellFrameworks
Spark, Hadoop, Flask, DjangoLibraries/APIs
AWS EC2 APITools
Apache ZooKeeper, Terraform, Chef, AWS CloudFormationPlatforms
Apache Kafka, AWS EC2, Linux, Docker, Azure, Rackspace, KubernetesStorage
Cassandra, Redis, Google Cloud, MongoDB, PostgreSQL, ElasticsearchOther
Security
Education
- Master's degree in Information Technology2011 - 2014University of Phoenix - Online
- Bachelor of Science degree in English Education2003 - 2006New York University - New York, NY, USA
Certifications
- Japanese Language Proficiency Adult Fluency LevelFEBRUARY 2017 - PRESENTThe Japan Foundation
- Machine LearningOCTOBER 2016 - PRESENTStanford University via Coursera
- Cassandra ArchitectJUNE 2016 - PRESENTDatastax
