Jonathan is available for hire
Hire JonathanJonathan Weismann
Verified Expert in Engineering
Linux Developer
Location
Tampa, FL, United States
Toptal Member Since
October 17, 2019
Jonathan is security clearance approved and Cloud Vendor Certified with a focus on total infrastructure administration, combining management skill sets to produce on-time results for companies that range from airlines to government entities. He can lead personnel for IT-related projects and is highly motivated to work with vendors to deploy the very best in the field of new technologies.
Portfolio
Toptal
Amazon Web Services (AWS), JavaScript, Ansible, Terraform, DevOps...
Clare Controls
Amazon Web Services (AWS), Java, Shell, Ansible, Jira, Linux...
Technatomy
Amazon Web Services (AWS), Azure, Ansible, Linux, Amazon S3 (AWS S3), AWS IAM...
Experience
Availability
Part-time
Preferred Environment
Amazon Web Services (AWS), Azure, Linux, Amazon S3 (AWS S3), AWS IAM, AWS Elastic Beanstalk, AWS HA, Amazon Virtual Private Cloud (VPC), VPN, Networking, IT Networking, Trello, IT Projects, Architecture
The most amazing...
...project I've worked on was migrating thousands of systems to the cloud on an epic scale.
Work Experience
Senior Solutions Architect
2019 - PRESENT
Toptal
- Handled third-party tools to audit, configure, and secure a multi-region AWS deployment focused on mitigating high-risk vulnerabilities to all business components.
- Utilized Terraform to streamline deployment and automation for continuous monitoring and deployment to the production environment.
- Created Jenkins tasks in the CI/CD pipeline to periodically audit, notify, and eliminate security vulnerabilities in custom packages and open-source software.
- Installed, configured, and managed Atlassian products, including Jira, Confluence, and Bamboo, among others.
Technologies: Amazon Web Services (AWS), JavaScript, Ansible, Terraform, DevOps, Amazon S3 (AWS S3), AWS IAM, AWS HA, VPN, Networking, GitLab CI/CD, CI/CD Pipelines, Kubernetes, AWS Fargate, System Administration, IT Networking, Ubuntu, Technical Hiring, Source Code Review, Task Analysis, Security, Team Management, Interviewing, DevSecOps, IT Security, Cloud, Amazon EC2, AWS Lambda, Amazon Virtual Private Cloud (VPC), Load Balancers, AWS CloudFormation, DNS, DNS Configuration, Blockchain, Decentralized Finance (DeFi), Agile DevOps, AWS DevOps, GitHub, Project Management, IT Project Management, IT Projects, Cloud Computing, Architecture, Docker, HashiCorp, Training
Senior IT Engineer
2015 - PRESENT
Clare Controls
- Created a CI/CD pipeline with Jenkins, Ansible, AWS, EKS (Kubernetes), and Git to reduce production pipeline to containers for rapid deployment of applications.
- Migrated multiple systems spread over global datacenters onto AWS Linux EC2 instances with MySQL RDS focused on security, scalability, and redundancy.
- Set up custom systems running Java, Apache (HTTP proxy), and MySQL.
- Documented custom applications with a record to Confluence knowledgebase.
- Established an IT helpdesk with ticket reporting, time to resolutions, and purchase orders.
- Organized networking and security audits on customized hardware, software, and internally used equipment regarding CVE alerting.
- Installed Windows 2012 systems on top of Hyper-V platform with System Center Virtual Manager consolidating standalone servers onto clustered hosts.
- Managed around ten internal employees and external contractors to provide enterprise infrastructure, streamline user authentication, and create a help desk system for tracking tickets and workloads.
Technologies: Amazon Web Services (AWS), Java, Shell, Ansible, Jira, Linux, Amazon S3 (AWS S3), AWS IAM, AWS Elastic Beanstalk, AWS HA, VPN, Networking, CI/CD Pipelines, Kubernetes, AWS Fargate, System Administration, IT Networking, Ubuntu, Technical Hiring, Source Code Review, Task Analysis, DevOps, Security, Team Management, Interviewing, DevSecOps, IT Security, Cloud, Amazon EC2, AWS Lambda, Amazon Virtual Private Cloud (VPC), Load Balancers, AWS CloudFormation, DNS, DNS Configuration, Agile DevOps, AWS DevOps, GitHub, Project Management, IT Project Management, IT Projects, Cloud Computing, Architecture, Docker, HashiCorp, Training
Senior Systems Engineer
2016 - 2019
Technatomy
- Oversaw the project as the subject matter expert for RedHat Enterprise Linux systems 5/6/7 for authentication and security platforms.
- Migrated the platform from on-premises to Microsoft Azure, including setup, configuration, and systems deployment with automation tools such as Ansible and PowerShell.
- Managed a team of administrators and engineers to design end-to-end solutions from development to production with a mindset to continuous development and integration.
- Spearheaded the architecture of the IBM Identify Manager Security software suite with development teams to replace end-of-life software.
- Identified security vulnerabilities with a focus on automation and remediation of risk-based findings.
- Created the documentation of installation guides for all stages of the application deployment to meet deliverable goals.
Technologies: Amazon Web Services (AWS), Azure, Ansible, Linux, Amazon S3 (AWS S3), AWS IAM, VPN, Networking, CI/CD Pipelines, System Administration, IT Networking, Ubuntu, Technical Hiring, Source Code Review, Task Analysis, DevOps, Security, Team Management, Interviewing, DevSecOps, IT Security, Cloud, Amazon EC2, Amazon Virtual Private Cloud (VPC), Load Balancers, DNS, DNS Configuration, Agile DevOps, AWS DevOps, Project Management, IT Project Management, IT Projects, Cloud Computing, Architecture, Docker, HashiCorp, Training
Infrastructure Manager
2014 - 2015
Xcira
- Managed 200 Red Hat 5/6 systems around the globe running customized Java applications.
- Automated deployment of virtual machines using Kernel-based Virtual Machine (KVM) and RHEV.
- Migrated 100 servers from Red Hat 5 to Red Hat 6 with CFEngine and Puppet.
- Set up new security and management software to protect edge infrastructure and provide intrusion detection.
- Customized Apache, MySQL, and PostgreSQL packages for automated application installations.
- Ran the data center consolidation from multiple sites to a new center with supported contracts, leased lines, and vendor contracts.
Technologies: Java, PostgreSQL, MySQL, Apache, Puppet, RHEL, VPN, Networking, CI/CD Pipelines, System Administration, IT Networking, Ubuntu, Technical Hiring, Source Code Review, Task Analysis, DevOps, Security, Team Management, Interviewing, DevSecOps, IT Security, Cloud, Amazon EC2, Amazon Virtual Private Cloud (VPC), Load Balancers, DNS, DNS Configuration, Agile DevOps, Project Management, IT Project Management, IT Projects, Cloud Computing, Architecture, Docker, HashiCorp, Training
Director of DevOps
2010 - 2014
ThreatTrack Security
- Spearheaded the rollout of the Cloudera Hadoop cluster on Red Hat Enterprise Linux for a big data project migrating several one-off systems into a central platform.
- Oversaw the AWS administration of Mongo database servers, MySQL clusters, RHEL, and CentOS 5/6 servers.
- Deployed VMware-certified clusters with hundreds of VM’s (Windows, Linux) for QA and test environments.
- Developed a migration plan involving several departments locally and globally by combining several different processes on dozens of servers down to a high-availability clustered environment.
- Coordinated with in-house staff and outside vendors to bring in cutting-edge technology to reduce overhead, adapt to changing technologies, and mitigate security risk.
- Created SLAs for time-based responses for systems being down or offline with escalation and minimum resolution acceptability.
Technologies: Amazon Web Services (AWS), Java, Apache, Hadoop, MySQL, RHEL, Networking, Technical Hiring, Source Code Review, Task Analysis, DevOps, Security, Team Management, Interviewing, DevSecOps, Cloud, Amazon EC2, Amazon Virtual Private Cloud (VPC), Load Balancers, DNS, Agile DevOps, Project Management, IT Project Management, Cloud Computing, Docker, Training
Systems Administrator Level IV
2003 - 2010
SysLogic
- Architected the virtualization platform with HP Blades running Red Hat Enterprise Linux 5 and Xen for a production environment. The product is a testbed for future High Availability configurations.
- Deployed LAMP-based virtual development servers using an internally designed application running RHEL5, Apache 2.x, MySQL 5.x, and PHP 5.x.
- Set up, supported, and configured Solaris 7,8,9 and 10 servers for use in the development environment, running development software including WebLogic, MQ Series, Informix, Oracle.
- Developed the deployment strategy to migrate desktops running Red Hat 7.3, Windows 2000, and RHEL 3/5 with Windows XP for local and global environments.
- Documented the server lab, including Solaris, HP-UX, Linux, and AIX servers for restoration purposes, and upgraded each operating system to the latest level.
Technologies: Solaris, MySQL, Apache, LAMP, Cisco, VMware, Xen, RHEL, Networking, DNS, DNS Configuration
Experience
Migration of Veteran's Affairs to Microsoft Azure
I designed, built, and deployed over 1,500 Linux systems to Microsoft Azure for the Veteran's Affairs while migrating custom, built off-the-shelf software applications with limited documentation and few knowledgeable resources.
Data Center to Cloud Migration
I designed and implemented migrations from on-premises (local or in the data center) systems—ranging from simple data systems to complex clustered applications—to AWS, all the while providing documentation on how each piece of the puzzle worked.
ETL Cloud Pipeline
The artificial intelligence and machine learning team required a new ETL pipeline tool to deliver insights to applications.
I worked with dozens of departments, including cloud security, purchasing, operations, DevOps, and VP levels, from inception to delivery of this monolithic application for dozens of data scientists to provide near real-time data sets to applications.
I worked with dozens of departments, including cloud security, purchasing, operations, DevOps, and VP levels, from inception to delivery of this monolithic application for dozens of data scientists to provide near real-time data sets to applications.
Cybersecurity GAP Analysis
Analyzed internal business needs coupled with infrastructure and security portfolio. Provided detailed documentation with communication to the business with reports for future projects and consultation with additional human resources for a multi-year deliverable plan.
Education
2005 - 2007
Bachelor's Degree in IT Business Management
St. Petersburg College - St. Petersburg, Florida, United States
Skills
Libraries/APIs
Jenkins Pipeline
Tools
Jira, VPN, Amazon Virtual Private Cloud (VPC), Terraform, AWS ELB, Shell, AWS IAM, GitLab CI/CD, AWS Fargate, AWS CloudFormation, GitHub, Trello, HashiCorp, Ansible, Puppet, Apache, VMware, Git, Amazon Elastic Container Registry (ECR), Amazon Elastic Container Service (Amazon ECS), AWS CodeBuild, AWS CLI, AWS CodeDeploy, SonarQube, GitLab, Amazon EKS, Bitbucket, Bamboo, AWS Glue, Apache Tomcat, NGINX
Paradigms
DevOps, DevSecOps, Agile Workflow, Continuous Deployment
Industry Expertise
Project Management
Platforms
Linux, Amazon Web Services (AWS), Ubuntu, Amazon EC2, Windows Server, Docker, Kubernetes, AWS Lambda, Xen, LAMP, Solaris, Nexus, Azure, Azure PaaS, AWS Elastic Beanstalk, Blockchain
Frameworks
AWS HA, Hadoop
Storage
Amazon S3 (AWS S3), MySQL, PostgreSQL
Languages
Java, JavaScript, Python, Bash Script, Snowflake
Other
RHEL, AWS DevOps, Networking, System Administration, IT Networking, Technical Hiring, Source Code Review, Task Analysis, Security, Team Management, Interviewing, IT Security, Cloud, Load Balancers, DNS, Agile DevOps, IT Project Management, IT Projects, Cloud Computing, Architecture, Training, AWS Cloud Architecture, CI/CD Pipelines, DNS Configuration, Cisco, AWS CodePipeline, Business Management, IT, Decentralized Finance (DeFi), Firewalls, Linux Administration, Documentation, Infrastructure
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