- Exploring famous landmarks, historical sites, and cultural attractions in a new destination
- Scuba Diving- Specialty Diver (Open Water Certified, Enriched Air Nitrox Certified and Deep Diving Certified)
Tiffany Siefker
Durango,IA
Summary
Self-driven professional with experience in accounting, supply management, procedure writing and project management, specializing in practical process improvement and quality assurance. Demonstrates a keen attention to detail with strong critical thinking and problem-solving skills. Committed to fostering collaborative environments and driving data-informed decisions to optimize business processes and financial security.
Overview
18
18
years of professional experience
1
1
Certification
Work History
Accounts Payable Clerk
Robert Half-University Of Iowa
09.2025 - Current
- Audit, evaluate, and enter vendor invoices online to create vouchers for payment in an accurate and timely manner.
- Examine, evaluate, and verify invoices and supporting documentation, checking for completeness and accuracy, and determining conformity to established guidelines or policies.
- Follow up with vendors, managers, and other employees to resolve open issues and discrepancies.
- Handle rush, paste due, credits/rebates, and regular entry invoices.
- Assist with various projects as needed, including coverage for coworkers.
BOOKKEEPER/OFFICE MANAGER
Shine Bright Cleaning Services
10.2021 - Current
- Manage and process all client invoices monthly, ensuring accuracy and timely payments.
- Identify and resolve discrepancies.
- Develop documentation for newly implemented procedures, and train staff to adapt to evolving business needs.
- Foster strong relationships with clients and staff, creating a cohesive work environment that promotes seamless operations and client satisfaction.
- Streamline processes, manage accounts, and generate comprehensive reports, enhancing operational efficiency and financial transparency.
- Meticulously maintain transactional records, create master spreadsheets, and generate 1099 forms for subcontractors.
- Create and maintain weekly schedules.
PURCHASING AGENT
Baron Blakeslee
09.2018 - 08.2019
- Developed documentation and process improvement procedures, enhancing efficiency and accuracy.
- Led audits and presentations, improving compliance and team engagement.
- Worked closely with customers and engineering on ECR (Engineering Change Requests), production schedule changes, Bill of Material discrepancies, and quality issues.
- Worked with fellow Quality Management Team members to establish a QMS (Quality Management System) that met external audit requirements.
- Procured materials, reducing delays, and improving assembly efficiency.
- Collaborated with vendors, optimizing supply chain communication, and reliability.
- Managed inventory, ensuring accurate stock levels, and timely order fulfillment.
- Entered test quality data sheets.
- Provided quotes for prospective customers, and shipped requested products.
- Consolidated part number system to reduce confusion and inconsistencies.
- Managed yearly calibration of gauges and tools.
- Worked with the production team to organize, clean up, and improve manufacturing conditions.
ASSEMBLER
John Deere Dubuque Works
11.2014 - 05.2018
- Supported team members and facilitated problem-solving to maintain production flow.
- Partnered with the engineering team to enhance work area productivity and safety.
- Actively participated in daily team projects and problem-solving initiatives.
- Demonstrated versatility by performing assembly tasks across multiple product lines, including crawler components, and backhoe sub-assemblies.
- Operated forklifts for logistics, ensuring timely delivery of parts to assembly lines.
- Consistently met production targets while maintaining quality standards.
- Fostered positive relationships with staff at all levels, promoting a cohesive work environment.
- Attended classes that taught torque values and procedures to minimize or eliminate failure during assembly.
- Participated in monthly safety meetings.
SUPPLY MANAGEMENT SPECIALIST AND COORDINATOR
John Deere Dubuque Works
11.2014 - 05.2018
- Collaborated with suppliers to manage urgent requests and optimize inventory levels.
- Managed reports and data audits, contributing to informed decision-making and cost savings.
- Supported manufacturing projects, aligning excess inventory with production needs.
- Optimized supply chain processes, executed price change authorizations, managed inventory, and facilitated system modifications, enhancing operational efficiency and forecasting accuracy.
- Strengthened relationships with domestic and international suppliers through data-driven analysis.
- Meticulously managed system parameters, updated sourcing data, and conducted thorough audits to ensure data integrity.
- Spearheaded initiatives to reallocate excess service assets to production lines, optimizing resource utilization, and freeing up company capital.
HIGHER EDUCATION EDITORIAL ASSISTANT
Kendall Hunt Publishing
02.2013 - 02.2015
- Streamlined editorial processes by creating pre-plans for campus visits, processing contract packages, and preparing author welcome packets.
- Supported editors with administrative tasks, enhancing workflow efficiency, and supporting sales team projects, enhancing project completion rates.
- Managed diverse administrative tasks, from creating spreadsheets to processing customer review copy requests, ensuring smooth operations and efficient support for the sales team.
- Facilitated seamless communication by maintaining mass email responses, updating CRM contacts, and addressing customer inquiries promptly and accurately.
- Generated and analyzed sales reports, maintained adoption sheets for three territories, and provided crucial data insights to drive strategic decision-making.
- Facilitated smooth communication between authors and editors, addressing queries, and providing administrative support to enhance project efficiency.
- Leveraged Navision software to generate reports, analyze expense data, and maintain accurate financial records for the editorial department.
- Conducted internet research to expand business opportunities, and support the editorial team in broadening market reach and content offerings.
QUALITY ASSURANCE INSPECTOR
Thermofisher Scientific
01.2008 - 06.2010
- Participated in process improvement teams, driving operational enhancements.
- Conducted thorough product inspections, analyzed blueprints, and implemented quality control measures, ensuring compliance with stringent industry standards.
- Collaborated with suppliers to rectify product defects to maintain production timelines and quality standards.
- Facilitated knowledge transfer by training international team members, fostering a culture of continuous improvement, and global collaboration.
- Optimized the sheet metal department workflow by leveraging CNC programming skills and Merry Mechanism software for efficient part nesting.
- Meticulously managed data entry, documentation, and reporting tasks, creating comprehensive spreadsheets and presentations for informed decision-making.
Education
No Degree - Marketing Management And Graphic Design
DeVry University
Chicago, ILNo Degree - General Studies
Northeast Iowa Community College
Peosta, IASkills
- Invoice Processing
- Data Entry
- Reconciliation
- Practical Process Improvement
- Procedure Writing
- Project Management
- Quality Assurance
- Critical Thinking and Problem Solving
- Effective Communication
- Detail Oriented
- Microsoft Office
- SAP
- PeopleSoft
- Data Analysis
- Purchasing
Accomplishments
- Created and implemented new forms, documents and procedures to become NRTL compliant
- Implemented new work processes which increased departmental productivity and reduce human error
- Helped re-design a sub-assembly work area to improve safety
- Assisted in the setup/creation of an organized stock area with clear concise labeling for a machine shop that converted into an assembly line
Certification
Procedure Professionals Association Procedure Writer Certification
Interests
Timeline
Accounts Payable Clerk
Robert Half-University Of Iowa
09.2025 - Current
BOOKKEEPER/OFFICE MANAGER
Shine Bright Cleaning Services
10.2021 - Current
PURCHASING AGENT
Baron Blakeslee
09.2018 - 08.2019
ASSEMBLER
John Deere Dubuque Works
11.2014 - 05.2018
SUPPLY MANAGEMENT SPECIALIST AND COORDINATOR
John Deere Dubuque Works
11.2014 - 05.2018
HIGHER EDUCATION EDITORIAL ASSISTANT
Kendall Hunt Publishing
02.2013 - 02.2015
QUALITY ASSURANCE INSPECTOR
Thermofisher Scientific
01.2008 - 06.2010
No Degree - Marketing Management And Graphic Design
DeVry University
No Degree - General Studies
Northeast Iowa Community College