andrew markopoulos
Senior System Analyst & SharePoint Administrator at General Dynamics Information Technology
senior system analyst sharepoint admin general dynamic information technology
experienced senior system analyst emerging data scientist demonstrated history working healthcare industry . skilled data analytics , data science , artificial intelligence , bi reporting . possessing strong written verbal communication skill .
General Dynamics Information Technology
https://www.linkedin.com/company/gdit
Senior System Analyst & SharePoint Administrator
•  Supported the Centers for Medicare and Medicaid (CMS) Part D Drug Processing System (DDPS).
•  Developed a proof-of-concept machine learning model in Databricks using Autoregressive Integrated Moving Average (ARIMA) time series forecasting to predict future drug cost amounts with 95% confidence. Later iterations included construction of a user interface tool for the client and the use of multivariate time series models, such as VARMA, LSTM, NBEATS. 
•  Spearheaded the machine learning program on DDPS and presented several models to over 200 people in different divisions of CMS who were interested in incorporating machine learning into their programs.  
•  Automated quarterly invoice processes and other recurring analyses for the Data Analysis team using Python and PySpark, subsequently decreasing manual recurring labor hours by 75%. 
•  Reinforced reconciliation between CMS and healthcare plans by completing AdHoc data analysis requests in an agile environment. 
•  Built interactive dashboards using Tableau and MicroStrategy to clearly illustrate vital data points for the client.
•  Led the initiative of migrating 27 internal and external sites from SharePoint 2010 to SharePoint Online and co-chaired a group of SharePoint admins from other programs in the Federal Civilian division of GDIT.
Woodlawn, Maryland, United States
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General Dynamics Information Technology
https://www.linkedin.com/company/gdit
Data Analyst & SharePoint Administrator
•  Constructed SQL queries to analyze and interpret Medicare Part D pharmaceutical claim data.
•  Communicated alternative solutions to the client in a clear and precise way in order to improve system processes.
•  Participated in SDLCs as a Systems Matter Expert (SME) to help colleagues better understand the system.
•  Supervised the internal and external SharePoint sites of my contract, managing the needs of over 150 users.
Woodlawn, MD
https://media-exp1.licdn.com/dms/image/C4D0BAQHJiSpFC46fEw/company-logo_100_100/0/1625146434259?e=1655942400&v=beta&t=aqrECfiDCmgaH1_VSh5BNjla6rgNTUGymsTTctmiXSA
General Dynamics Information Technology
https://www.linkedin.com/company/gdit
Service Desk Analyst
•  Provided helpdesk support for three simultaneously instated healthcare contracts, as well as internal users.
•  Solved client problems by analyzing and researching issue tickets and change requests.
•  Devised new workflows to increase work efficiency and effectiveness.
•  Constructed custom queries in order to generate weekly and monthly data reports.
•  Transitioned from a legacy ticketing system to BMC Remedyforce tracking system.
Towson, MD
https://media-exp1.licdn.com/dms/image/C4D0BAQHJiSpFC46fEw/company-logo_100_100/0/1625146434259?e=1655942400&v=beta&t=aqrECfiDCmgaH1_VSh5BNjla6rgNTUGymsTTctmiXSA
Freelance
Web Developer
•  Developed a preliminary website to promote Anonitech LLC’s company and product.
•  Designed a logo and branding scheme for the client.
•  Provided ongoing site maintenance and support.
Olde English Fish Chips and Chicken, Inc.
Store Manager
•  Hired, trained, and directed a staff of 10 employees at a busy fish and chips carryout restaurant.
•  Increased resource efficiency by 12% saving the company an average of $13,000 per year.
•  Developed new products to further benefit the company and increase customer satisfaction.
•  Oversaw day-to-day tasks, such as payroll, inventory, financial transactions, and exceeding FDA standards.
•  Encouraged high employee moral by setting goals and frequently reminding employees of the company’s mission.
Middle River, Maryland, United States
Computer Information Systems w/ Business Track
Bachelor of Science (BS)
Towson University
https://www.linkedin.com/school/towson-university/
Orthodox Christian Fellowship at Towson University (OCF) 
Founder and President of OCF at Towson University.
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Mathematics
Associate's Degree
Harford Community College
https://www.linkedin.com/school/harfordcc/
Harford Community College Diversity Committee 
One of three students chosen to work with faculty in order to alter and submit HCC’s diversity plan to the Maryland State Board.
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Science and Technology
Saint Mary’s Antiochian Orthodox Church
https://www.linkedin.com/company/united-latino-students-association
Chair of the IT Committee
•  Designed, developed, and maintained the church website (www.nativityofthetheotokos.org).
•  Offered training on all church systems to parish leaders.
•  Implemented an online ordering system that allows St. Mary’s to fulfill online orders from its greater community.
https://media-exp1.licdn.com/dms/image/C560BAQHGhly_87bnSw/company-logo_100_100/0/1560802374788?e=1655942400&v=beta&t=K7WqPD21eM-gXnyLLgxdtB29QYMnsQEC_5TCE-iVQCQ
Saint Mary Antiochian Orthodox Church
Youth Advisor and Sunday School Teacher
•  Advised teenagers of the Society of Orthodox Youth Organizations (SOYO).
•  Taught Sunday school to teenagers.
• Organized monthly service projects and led annual youth retreats.
Orthodox Christian Fellowship
https://www.linkedin.com/company/orthodox-christian-fellowship
Founder and President of Orthodox Christian Fellowship
• Planned the creation of a Towson OCF chapter by collaborating with local clergy and the OCF national board. 
• Held weekly meetings and planned almsgiving events for a group of eight fellow college students.
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Human Rights
Harford Community College
https://www.linkedin.com/company/harfordcc
Diversity and Inclusion Committee Member
•  One of three students chosen to work with faculty to alter and submit HCC’s diversity plan to the Maryland State Board.
https://media-exp1.licdn.com/dms/image/C4D0BAQEJYVxd1TDhfQ/company-logo_100_100/0/1521133368996?e=1655942400&v=beta&t=rOybxvZ7ih9iKnfcBRWmWgR8kHtAvdeq98U2aUYXxbw
https://www.linkedin.com/in/stephen-sadowski-528256139
Stephen Sadowski
Senior Accountant at Calibre CPA Group, PLLC
Rockville, MD
https://www.linkedin.com/in/joeestefan
Joe Estefan
Founder - Consultant  at Zeina Enterprises
Millersville, MD
https://www.linkedin.com/in/arun-rajan
Arun Rajan
Consultant
Washington DC-Baltimore Area
https://www.linkedin.com/in/romeo-d-onofrio-000ab282
Romeo D'Onofrio
Software Developer at General Dynamics Information Technology
Owings Mills, MD
https://www.linkedin.com/in/marie-scott-7b0129b
Marie Scott
Sr Analyst, Systems GDIT
Abingdon, MD
https://www.linkedin.com/in/brian-vargo-92165223
Brian Vargo
Security Engineer at General Dynamics Mission Systems
Columbia, MD
https://www.linkedin.com/in/samuel-oden-399739116
Samuel Oden
Software Engineer at Twilio
Baltimore, MD
https://www.linkedin.com/in/jack-simms-417575a9
Jack Simms
Software Engineering Manager at General Dynamics Information Technology
Baltimore City County, MD
https://www.linkedin.com/in/bobin-rajan
Bobin Rajan, CISSP
Senior Advisor, Information Security at General Dynamics Information Technology
Baltimore City County, MD
https://www.linkedin.com/in/julie-gielner-5919b156
Julie Gielner
Principal Programmer at General Dynamics Information Technology
Baltimore, MD
https://www.linkedin.com/in/scott-beichley-cissp-09abb07
Scott Beichley, CISSP
Manager Information Security at GDIT
Towson, MD
https://www.linkedin.com/in/shira-goodman-56297213
Shira Goodman
Product Manager at Oddball
Baltimore City County, MD
https://www.linkedin.com/in/ravi-sewbhajan
Ravi Sewbhajan
Graduate Student at Lubin School Of Business
Bronx, NY
https://www.linkedin.com/in/deborahsilverman
Deborah Silverman
Senior Program Analyst/Project Coordinator
Windsor Mill, MD
https://www.linkedin.com/in/khflynn
Kathleen Flynn
Systems Engineer at Boeing
Herndon, VA
https://www.linkedin.com/in/wenxuan1
Wendy He
Data Analyst at Taylor Morrison | Collaborative | Open networking | Cross-Cultural Communication
Tempe, AZ
https://www.linkedin.com/in/abhinav-meesa-7a85b9121
Abhinav Meesa
Business Analytics | Project Management
Miami, FL
https://www.linkedin.com/in/deannaolson
Deanna O.
Scrum Master/Senior Strategy & Planning Consultant
St Paul, MN
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