Platform Engineer (Contract)
2020 - PRESENTWestpac New Zealand, Limited- Migrated Java applications from a legacy infrastructure to a Kubernetes environment.
- Implemented visibility and monitoring via metrics to Prometheus and Grafana and logs to the Elasticsearch cluster.
- Improved the developer experience by prebuilding containers for local development and maintenance for legacy Java apps.
Technologies: Elasticsearch, Grafana, Prometheus, Jenkins, KubernetesSecurity Engineer
2015 - 2020Xero- Contributed to Netflix's open-source tool, Security Monkey (now unfortunately discontinued) by implementing RBAC across the front end and back end.
- Built a fully automated CI/CD pipeline that deployed applications into AWS ECS via AWS CodePipeline and CodeBuild.
- Implemented auditing and compliance automation across a fleet of ~100 AWS accounts with Lambda, cross-account IAM roles.
- Consulted with product teams on secure, best practices and cost savings in the AWS architecture.
- Validated platform and application level security issues—command injection, cache poisoning, token misuse, server-side request forgery (SSRF), domain hijacking, and more.
- Led development of DevSecOps practice at Xero, implementing various automated tools into the development pipeline to give Security and developers greater confidence in the security of their applications before deploying. Attended DevSecCon Seattle which was a great opportunity to talk to world leaders in the space.
Technologies: Amazon Web Services (AWS), Jenkins, Python, Docker, AWS
Oliver Ewert
Software Developer in Wellington, New Zealand
Member since September 17, 2019
Oliver has over five years of experience with automation in the cloud—from automated firewall appliance provisioning to modern, serverless web applications. Along with a strong security and systems background, he's successfully worked as a full-stack developer. He started freelancing because he enjoys new challenges, helping people, and wanted more flexibility. Oliver is an active member in his local developer community, speaking at conferences and contributing to open source.
Oliver is now available for hire
Portfolio
- Westpac New Zealand, LimitedElasticsearch, Grafana, Prometheus, Jenkins, Kubernetes
- XeroAmazon Web Services (AWS), Jenkins, Python, Docker, AWS
Experience
- Python 3 7 years
- Amazon Web Services (AWS) 6 years
- AWS IAM 5 years
- AWS CloudFormation 5 years
- Akamai 4 years
- Docker 3 years
- AWS ECS 2 years
- Auth0 2 years
Availability
Part-time
Preferred Environment
AWS CodeStar, PyCharm, Docker
The most amazing...
...thing I've done was automating the deployment of a legacy system that "couldn't be automated," saving us countless hours of pain and suffering.
Employment
Experience
- IAM Action Tracker (Development)https://aktion.io/
An app to track and manage available AWS IAM actions, services, and policies by scraping open-data sources. It has a serverless architecture hosted on GitHub pages. It was a collaboration with former colleagues written in Go with Bootstrap front end.
Skills
Languages
Python 3, Python, Python 2, Bash, JavaScript, Ruby, C#Tools
AWS IAM, AWS ECS, AWS CloudFormation, Auth0, Jira, Xero, Amazon Virtual Private Cloud (VPC), AWS CloudWatch, Jenkins, Bitbucket, Slack, PyCharm, Grafana, Sentry, Helm, Nginx, ELK (Elastic Stack)Platforms
Docker, Amazon Web Services (AWS), AWS Lambda, Kubernetes, Mailgun, PagerDuty, HerokuIndustry Expertise
Security, Network Security, IT SecurityOther
AWS, AWS DevOps, Akamai, Cloudflare, Web App Security, SecOps, Prometheus, SlackbotFrameworks
DjangoLibraries/APIs
Jenkins Pipeline, Xero APIParadigms
DevOps, DevSecOps, Continuous Delivery (CD), Continuous Integration (CI)Storage
AWS S3, AWS CodeStar, PostgreSQL, AWS RDS, Elasticsearch, AWS DynamoDB
Education
- Bachelor of Engineering degree in Network Engineering2013 - 2017Victoria University of Wellington - Wellington, New Zealand
Certifications
- Akamai Bot Manager FoundationsSEPTEMBER 2018 - PRESENTAkamai
- Akamai Kona Site DefenderAUGUST 2018 - PRESENTAkamai
- Akamai Web Performance FoundationsJULY 2018 - PRESENTAkamai
- AWS Certified Solution Architect — AssociateMARCH 2018 - MARCH 2021AWS
