John Olverson
Warrensburg,MO
Summary
Results-driven I.T. professional with expertise in data systems and infrastructure. Proven track record in troubleshooting network issues and managing data pipelines, enhancing operational efficiency and customer satisfaction. Proficient in utilizing Apache Spark and Hadoop for data processing and analytics.
Overview
21
21
years of professional experience
1
1
Certification
Work History
Barrister Global Services Network
07.2021 - Current
- Provide onsite installation and site survey with new customers.
- Troubleshoot Cisco routers and switches and server Installation.
- This position is more of a freelance position.
Contact Representative
Department of Treasury and Finance
06.2023 - 04.2024
- As a Contact Representative, you will provide over-the-phone technical assistance to individuals and businesses.
- Delivered accurate information on tax regulations and compliance, assisting clients in meeting their obligations.
- You will apply the tax code while addressing a wide range of issues to assist taxpayers in understanding and meeting their tax responsibilities so no prior tax experience is required.
- Resolved customer inquiries on financial policies and procedures, enhancing client understanding.
- Reviewed and processed applications for financial assistance programs, ensuring timely support for applicants.
Senior Insurance Agent
Insurance Supermarket International Inc
12.2022 - 03.2023
- Handled inbound calls from clients interested in final life insurance expenses, providing tailored guidance to meet their needs.
- Assisted clients in selecting appropriate insurance coverage options.
- Educated clients on policy benefits and claims processes.
- Processed policy applications and maintained client records efficiently.
Retail Merchandiser
Set and Services Resources
03.2016 - 06.2022
- Performed merchandising activities across various retail environments, including planogram execution and department resets to optimize product placement.
- Ensured attractive store presentation in grocery and big box retailers to enhance customer shopping experience.
- As a Retail Merchandiser, you will do general retail merchandising which involves carefully reading instructions and following directions to ensure the best possible product presentation in the client's store environment..
Customer Service Representative
TTEC
01.2021 - 07.2021
- Assisted customers with inquiries and product information through various channels, ensuring timely resolution of issues.
- Answered customer inquiries and delivered accurate information on products and services, contributing to customer satisfaction.
- Identified opportunities for upselling additional products or services based on customer needs.
- Provided customer support and solicited senior property and casualty insurance over the phone, enhancing customer understanding of offerings.
sale agent
SELECTQUOTE
08.2019 - 01.2020
- Assisted clients in selecting appropriate insurance plans tailored to individual needs.
- Educated customers on policy details and coverage options for informed decisions.
- Conducted thorough needs assessments to identify suitable products for clients.
- Engaged senior customers to explain Medicare Advantage plans.
Hadoop Data Architect/Engineer
Techfield
Atlanta, USA
07.2017 - 05.2018
- Acted as principal architect for the on-site Cloudera Hadoop cluster, which improved data processing capabilities.
- Key role in migrating production and development Hortonworks Hadoop clusters to a new multitenant Cloudera cluster using existing hardware and a short outage window.
- Consolidated clusters, reducing administrative overhead, service contract costs, and technical debt.
- Integrated on-premises cluster with transient, cloud-based Google Hadoop clusters and storage for improved data accessibility.
- Executed tuning and firewall setup, and monitored and troubleshot cluster-wide issues.
- Worked on importing and exporting data using Sqoop between HDFS to RDBMS.
- Collect, aggregate, and move data from servers to HDFS using Apache Spark & Spark Streaming.
- Administered Hadoop cluster(CDH) and reviewed log files of all daemons.
- Used Spark API over Hadoop YARN to perform analytics on data in Hive.
- Used Spark SQL and DataFrames API to load structured and semi-structured data into Spark Clusters.
- Migrated ETL jobs to Pig scripts for transformations, joins, aggregations before HDFS.
- Perform Scala and python programming in Apache Spark to optimize databases in Data warehouses.
- ETL Informatica is good but strong oracle, PL SQL is key.
- Based in Atlanta, GA, for project implementation and collaboration.
- Environment: HDFS, PIG, Hive, Sqoop, Oozie, HBase, Zookeeper, Cloudera Manager, Ambari, Oracle, MYSQL, Cassandra, Sentry, Falcon, Spark, YARN.
Electronic Technician II
Nesco Resources/Honeywell
01.2015 - 06.2015
- Achieved a 100% completion rate in troubleshooting the ADHAR system by employing systematic diagnostic techniques.
- Utilized measuring and diagnostic tools to test and modify electronic parts, enhancing performance and compliance.
- Ensured systems and components met established specifications, contributing to quality assurance and safety standards.
- Constructed, maintained, and tested electrical systems and components to ensure operational reliability.
Seasonal Tax Professional
JACKSON HEWETT
Warrensburg, USA
01.2014 - 04.2014
- Conducted complete tax interviews and prepared tax returns to minimize clients' tax liabilities as prescribed by tax law.
- Processed electronic tax returns, ensuring compliance with IRS regulations and timely submissions.
- Answered tax questions and provided financial planning advice, facilitating referrals to relevant H&R Block services.
- Implemented client service and public relations programs to enhance customer satisfaction and engagement.
- Warrensburg, Missouri
Bank Life and Casual
09.2013 - 12.2013
- I work with a group of people who did call calling for life insurance, medical benefits, and Financial advisor.
TAC Analyst
Compqsoft
Kansas City, USA
11.2012 - 06.2013
- Managed and troubleshot all MCEITS network and application issues, addressing application outages, system issues, and customer problems.
- Acted as Problem Manager for MCEITS, overseeing creation, tracking, and RCA of all problem records.
- Coordinated with onsite and offsite support staff and vendors to troubleshoot and resolve production outages.
- Managed third shift TAC employees, ensuring timely monitoring and resolution of nightly issues.
- Monitor Production environment using HP Tools (BAC, Insight, OMW, NNM).
- Proactively check the HP Enterprise Applications, take correct action when errors are found.
- Utilize VCenter to troubleshoot issues with Virtual Machines.
- Document all system outages using Remedy, ensuring all outage/troubleshooting/resolution details are included in the ticket.
Network Admin
Iztechnologies
, Afghanistan
12.2010 - 06.2011
- Configured Cisco 3700, 3600, 2600 series routers and C6500, 4500, 3700 series switches in a DMVPN network.
- Executed on-site installation and troubleshooting of network and computer systems, ensuring operational continuity for Marine Corps network.
- Troubleshot SWAN network, satellite communication, and radio systems to maintain reliable communication channels.
- Designed and analyzed new computer and network technologies to enhance customer collaboration.
- Supported operations at FOB Delaram, Afghanistan, contributing to mission success.
Network Engineer Junior
COMPUTER SCIENCE CORPORATION
Virginia Beach, USA
11.2007 - 03.2009
- Conducted data analysis and security review for migration of applications and systems to Navy enterprise enclaves and decommissioning of Navy legacy networks.
- Determine appropriate end state architecture (elimination, enterprise migration, consolidation, RDT&E).
- Inform and advise site representatives, Central Design Authorities and Program Managers on the process by which legacy systems are transitioned to Navy enterprise enclaves.
- Recommend a technical solution for enterprise review to facilitate enterprise wide solutions.
- Ensured end-state posture of enterprise networks remained robust despite introduction of legacy applications and systems.
- Provided quality-engineering consulting for development of technical processes and solutions to address challenges in transitioning legacy systems to enterprise enclaves.
- Designed security measures for CAC and Windows authentication to enhance system integrity.
- Virginia Beach, Virginia
HELP DESK COORDINATOR
ELECTRONIC DATA SYSTEMS CORPORATION
Norfolk, USA
06.2006 - 09.2007
- Resolved complex issues escalated from First-Tier help desk support.
- Provided supervision and support to end-users for PC, server, mainframe applications, and hardware.
- Collaborated with software engineering and application development teams to resolve service issues and troubleshoot core system problems.
- Assisted in simulating and recreating user problems, recommended systems modifications to reduce issues, and collaborated with software developers and database administrators to develop network software solutions.
- Engaged with systems engineering and application development teams to ensure service continuity.
- Researched and responded to customer inquiries following procedural guidelines.
- Norfolk, Virginia
Marine Junior Positioning Specialist
WESTERN GECO
Houston, USA
08.2005 - 05.2006
- Operate the Integrated Navigation System, where information from satellite and sonar technology together with gyro and compass data is channeled, collated and processed to position hundreds of survey nodes to accuracies within 5 meters.
- Troubleshot and repaired GPS systems, collected data from Linux database, and utilized 2D/3D seismic modeling for accurate positioning.
- Executed faultfinding, maintenance, and repair of electronic equipment and systems, ensuring operational reliability.
- Based in Houston, Texas
Education
Master of Science - Information Technology
The University of Central Missouri
Warrensburg, MissouriBachelor of Science - Electronics; Minor in Computer Information Systems
University of Central Missouri
Warrensburg, MissouriSkills
- Apache Spark
- Apache Hadoop
- Spark API
- Hive
- SQL
- Python
- Scala
- DataFrames
- Apache Flume
- Datasets
- Pipelines
- Data Lakes
- Data Warehouse
- Data Analysis
- REST API
- SOAP API
- Apache Kafka
- Apache Flume
- Apache Sqoop
- NoSQL the Pig
- Apache Oozie
- Apache HBase
- Apache Drill
- HDFS
- Hadoop YARN
- Kibana
- Tableau
- Elasticsearch
- Solr
- Lucene
- AWS
- Azure
- Databricks
- Cloud Foundry
- Elastic Cloud
- Agile
- Scrum
- Kanban
- DevOps
- Continuous Integration
- Test-Driven Development
- Unit Testing
- Functional Testing
- Design Thinking
- Lean
- Six Sigma
- RDDs
- JSON
- Avro
- Parquet
- ORC
- Hortonworks
- Cloudera
- Impala
- RDBMS
- Hive
- Cassandra
- MongoDB
- Oracle
- SQL Server
- Snappy
- Gzip
- DAS
- NAS
- SAN
- Linux/UNIX
- Windows
- SAN
- AWS
- Azure
- Anaconda Cloud
- Elasticsearch
- Solr
- Lucene
- Databricks
- Cloud Foundry
- Elastic Cloud
- Linux/UNIX
- Windows
Certification
- Cisco Certification Network Associate
- CCDA
- A+
- MCP
- CIW
- MCSA
- Security+
Voluntary Project
Working with the Greater Peoria Data & Analytics Community to help develop a smarter city for the City of Peoria., Introduced Hadoop architecture to the project.
Timeline
Contact Representative
Department of Treasury and Finance
06.2023 - 04.2024
Senior Insurance Agent
Insurance Supermarket International Inc
12.2022 - 03.2023
Barrister Global Services Network
07.2021 - Current
Customer Service Representative
TTEC
01.2021 - 07.2021
sale agent
SELECTQUOTE
08.2019 - 01.2020
Hadoop Data Architect/Engineer
Techfield
07.2017 - 05.2018
Retail Merchandiser
Set and Services Resources
03.2016 - 06.2022
Electronic Technician II
Nesco Resources/Honeywell
01.2015 - 06.2015
Seasonal Tax Professional
JACKSON HEWETT
01.2014 - 04.2014
Bank Life and Casual
09.2013 - 12.2013
TAC Analyst
Compqsoft
11.2012 - 06.2013
Network Admin
Iztechnologies
12.2010 - 06.2011
Network Engineer Junior
COMPUTER SCIENCE CORPORATION
11.2007 - 03.2009
HELP DESK COORDINATOR
ELECTRONIC DATA SYSTEMS CORPORATION
06.2006 - 09.2007
Marine Junior Positioning Specialist
WESTERN GECO
08.2005 - 05.2006
Master of Science - Information Technology
The University of Central Missouri
Bachelor of Science - Electronics; Minor in Computer Information Systems
University of Central Missouri