Derek Janssen
Kansas City
Summary
Dynamic professional with a proven track record at T-Mobile, excelling in customer engagement and team leadership. Achieved consistent sales growth through new sale's strategies and strong relationship-building. Skilled in project management, delivering results while optimizing workflows and enhancing client satisfaction. Committed to driving success and fostering collaboration across teams.
Overview
5
5
years of professional experience
1
1
Certification
Work History
Construction Foreman
Affeldt Construction LLC
Leavenworth
02.2025 - Current
- Enforced safety rules at all times to reduce workplace hazards for both employees and visitors.
- Maintained records such as daily time sheets, material orders, project costs and contractor information.
- Directed workers in proper techniques for installation or repair of structures according to blueprints or specifications.
Account Executive
My Freight World
11.2024 - 02.2025
- Provided exceptional customer service, addressing client concerns promptly and effectively to ensure long-term loyalty.
- Managed multiple accounts simultaneously while maintaining organization and prioritizing tasks efficiently.
- Boosted client satisfaction by developing and maintaining strong relationships through effective communication.
Senior Sales Representative
T-Mobile
08.2023 - 11.2024
- Drove sales performance at T-Mobile, consistently exceeding targets
- Implemented innovative strategies to boost customer acquisition and retention
- Fostered strong relationships with team members and cross-functional departments at T-Mobile
- Shared best practices to enhance overall sales effectiveness
Mobile Sales Expert
T-Mobile
03.2022 - 08.2023
- Drove customer satisfaction through personalized mobile solutions, consistently exceeding sales targets and fostering brand loyalty at T-Mobile
- Optimized mobile solutions, surpassing sales targets and cultivating brand loyalty
- Implemented targeted strategies, resulting in measurable customer satisfaction growth
Project Manager
Premier Roofing of KC
03.2020 - 10.2022
- Led roofing projects from inception to completion, ensuring timely delivery and client satisfaction
- Implemented cost-saving measures, resulting in substantial budget reductions
- Fostered strong relationships with contractors and suppliers, streamlining project workflows
- Coordinated cross-functional teams to meet project milestones and exceed quality standards
Education
Certification - Cybersecurity
Coursera
11.2024
Tech Degree - Front End Software Development
Treehouse
Associate's degree - Liberal Arts and Sciences, General Studies and Humanities
Johnson County Community College
Skills
- Team Leadership
- Customer Engagement
- Excellent communication
Certification
- Tech Degree in Front End Web Development at Treehouse (2023-02)
- Google Cybersecurity Professional Certificate at Coursera (2024-01 to 2024-09)
Timeline
Construction Foreman
Affeldt Construction LLC
02.2025 - Current
Account Executive
My Freight World
11.2024 - 02.2025
Senior Sales Representative
T-Mobile
08.2023 - 11.2024
Mobile Sales Expert
T-Mobile
03.2022 - 08.2023
Project Manager
Premier Roofing of KC
03.2020 - 10.2022
Certification - Cybersecurity
Coursera
Tech Degree - Front End Software Development
Treehouse
Associate's degree - Liberal Arts and Sciences, General Studies and Humanities
Johnson County Community College
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