Department of Medicine: Division of Cardiology• Worked both independently and collaboratively with principal investigators to coordinate qualitative research in fast-paced laboratory environment.• Learned new laboratory techniques and applied expertise in carrying out enhanced experiments under supervision of principal investigator and senior lab members.• Cell culture: Planned, optimized and executed research protocols and procedures for isolation of rat and mouse ventricular cardiomyocytes; treatment and harvest of protein, myofibrils, DNA and RNA.• IonOptix: Precision life science instrumentation optimized for studying isolated cardiomyocytes, muscle tissue, blood vessels and tissue culture. Live cell imaging and data acquisition including contractility and calcium dynamics.• Data Analysis: Recorded experimental findings from all laboratory benchwork in traditional and electronic laboratory notebook (ELN) to analyze and interpret experimental findings.• Gathered, arranged and corrected research data to create representative graphs and charts highlighting results for presentations and research conferences.• Animal Work: Colony maintenance (mice and rats); weaning, tissue collection, animal genotyping, IP injections, animal handling, pump implantation surgeries, termination and tissue harvest.Contributed PresentationsPoster: Christopher Hoffer, Cortney Wilson, Kristopher Fritz, Timothy McKinsey, Kathleen Woulfe. 2022 Myofilament Meeting. Madison, WI, May 21-24, 2022. Histone Deacetylase 8 Regulates Myofibril Relaxation.

• Setup and conduct chemical experiments, tests, and analysis using techniques such as chromatography, spectroscopy, physical and chemical separation techniques, and microscopy under Principal Investigator Dr. Joseph T. Jarrett. • Participated in the Undergraduate Research Opportunity Program (UROP) conducting experiments in collaboration with graduate students researching salvage pathways in bacteria. • Prepared chemical solutions for products and processes following standard operating procedures and protocols.

• Assisted the Stockroom Manager with tasks relating to support for the chemistry teaching and research laboratories. • Maintained a stockroom primarily serving chemistry labs, including purchasing, inventory management, and chemical handling. • Trained in safe handling of chemicals and lab safety protocols. • Possesses familiarity with Safety Data Sheets and proper waste disposal methods.

• Led, managed and supervised recruiters assigned to the Recruiting Substation in accordance with Commanding Officer's guidance and recruiting mission.• Recruited quality men and women in sufficient numbers by canvassing, screening, selling and processing for enlistment IAW systematic recruiting and CMC standards.• Conducted individual planning and analysis in order to develop and implement productive monthly/weekly/daily plans that will ensure mission accomplishment.• Led and prepared future Marines to ship and graduate from recruit training by motivating and mentally/physically preparing candidates for future service.• Established professional working relationships while projecting a positive image of the Marine Corps in assigned high schools and the local community.• Maintained standards in personal appearance, physical fitness, integrity and vehicle safety.

• Recruited quality men and women in sufficient numbers by canvassing, screening, sellingand processing for enlistment IAW systematic recruiting and CMC standards.• Conducted individual planning and analysis in order to develop and implement productivemonthly/weekly/daily plans that will ensure mission accomplishment.• Led and prepared future Marines to ship and graduate from recruit training bymotivating and mentally/physically preparing applicants for future service.• Established professional working relationships while projecting a positive image of the MarineCorps in assigned high schools and the local community.• Maintained standards in personal appearance, physical fitness, integrity and vehiclesafety.

OH Insurance License #1060567. Insurance products from the Principal Financial Group® are issued by Principal National Life Insurance Company (except in New York), Principal Life Insurance Company, and the companies available through the Preferred Product Network, Inc. Securities and advisory products offered through Principal Securities, (800) 247-1737 Member SIPC. Principal National, Principal Life, the Preferred Product Network and Principal Securities® are members of the Principal Financial Group, Des Moines, IA, 50392.CHRIS HOFFER IS NOT LICENSED IN ALL STATES TO OFFER SECURITIES AND INSURANCE PRODUCTS. THIS SITE IS NOT A SOLICITATION OF INTEREST IN ANY OF THESE PRODUCTS OR SERVICE IN ANY STATE WHICH THE REGISTERED REPRESENTATIVE IS NOT PROPERLY LICENSED

• Performed troubleshooting, diagnosis, and repair of Apple MacOS and iOS hardware and software for an average of 300 clients per month• Assessed customer needs in order to provide relevant solutions• Created repeat business by providing excellent customer experiences