Brad Kallhoff Email & Phone Number

Quickly grasped new proficiency in the Go programming language.Broke apart services written in Ruby on Rails to reconstruct their used functionality into various Golang microservices.Designed and built APIs and Webhooks to develop a new, more efficient onboarding process for new prospective applicants.Built internal SDK to be used by the entire company when creating tracked events from their respective services.Worked through the process of designing an internal replacement of an outsourced application service, including handling different forms of PII (background check, payment collection, etc.), creating new microservices and flows, and constructing and utilizing various Kafka topics.

Placed on contracts with a wide variety of desired skill sets.Worked on a multitude of front end and back end services for internal applications using Java, Spring Boot, Angular, and React.Network experience maintaining Cisco and Aruba/HP Switches, Routers, Wireless Controllers and Access points; Palo Alto and Checkpoint Firewalls.Assisted in training and escalation of other field engineers.Key Contracts Listed Below

Upgraded and deployed Tomcat servers running production applicationWrote custom VXML Elements in Java / J2EE.Created and updated backend services in Java based on updates to call flows.Integrated Java services with the Nuance Development Framework.Extensive experience using linux command line creating scheduled tasks, writing scripts, and managing services.Designed and implemented KPIs to track performance of the services offered by call flows.Trained colleagues in proper configuration of IVR reporting tool, Nuance Insights.

Provided PoC (proof of concepts) implementations that would be templates or patterns for other teams in the organization the follow.Designed and built a centralized data hub microservices using Spring Boot.Set up Pulsar topics to publish records of any additions or changes to entities in data domains.Wrote logic for data harmonization between a multitude of data sources in order to produce the correct resource for any given operation.Created custom SQL queries and connections using JDBC.Used Swagger for API documentation for RESTful web services.Involved in modifications made to Drone CI/CD Pipeline.Dockerized and deployed applications using Kubernetes in AWS.Implemented Log4j for logging and appended to a log file for debugging.Wrote Unit tests using JUnit and Mockito for complex business logic.

Installed new Aruba wireless network infrastructure utilizing various Aruba 7000 series controllers with various 300 series WAPsUtilized and configured Aruba Clearpass for Network Access ControlImplemented new firewall rules on both Palo Alto Next-Gen Firewalls and older Checkpoint firewall models.Configured new stacks of Aruba 2900 series switches for Engility Headquarters.Used Ekahau to design and to analyze new WAP configurations and identify coverage holes.Configure cisco routers with proper route maps, prefix lists, and access lists to ensure proper security.Created VPN tunnels between database and remote offices to allow for cross-traffic during company merger.Applied fixes, product upgrades during the pre-defined maintenance windows.Created Python scripts to push configuration changes to switches, routers, and wireless controllers.