SIDNEY BERRIEN
Saint John,IN
Summary
Dynamic senior sales and market leader with a proven track record of driving sales growth and optimizing market strategies. Expertise in team collaboration, adaptability to evolving needs, and delivering impactful results that exceed expectations. Proficient in market analysis, strategic planning, and cultivating strong client relationships. A reliable, goal-focused professional prepared to make significant contributions in fast-paced market environments.
Overview
17
17
years of professional experience
Work History
Rural Market Manager
T-Mobile USA
08.2024 - Current
- Lead a multi-location sales market serving 1M+ customers, accountable for customer acquisition, revenue growth, and sales execution.
- Increased market share from 26.5% to 28.4% year over year through disciplined execution and sales leadership.
- Grew share of households from 25.9% to 30.5% YoY, expanding customer penetration and long-term revenue opportunity.
- Drove community-based customer acquisition by engaging high schools across a 100-mile radius to enroll in Friday Night 5G Lights, resulting in 25% school participation and a 30% year-over-year program increase.
- Coach leaders on pipeline management, forecasting accuracy, and consultative selling.
- Partner cross-functionally to align solutions to customer needs and market growth strategies.
Retail Development Manager (Stretch Assignment – Metro by T-Mobile)
T-Mobile USA
02.2024 - 08.2024
- Provided leadership oversight for 18 Metro by T-Mobile locations during enterprise transformation initiatives.
- Supported rollout of Metro Flex and Magenta in Metro Un-carrier moves.
- Acted as a subject-matter resource to improve execution consistency and pipeline health.
Retail Store Manager
T-Mobile USA
02.2018 - 08.2024
- 6× Quarterly Winner’s Circle Recipient for sustained sales excellence.
- Elevated store to high-volume status through improved sales processes and talent development.
- Spearheaded a Retail Associate Manager development initiative for the Michigan market.
- Improved store sales by implementing effective marketing strategies and attractive visual merchandising.
- Oversaw employee performance, corrected problems, and increased efficiency to maintain productivity targets.
Signature Associate Manager
T-Mobile USA
03.2014 - 04.2017
- Conducted regular performance evaluations of team members, providing constructive feedback and identifying areas for growth.
- Successfully managed multiple high-priority tasks simultaneously while maintaining strict deadlines ensuring optimal resource allocation.
- Remedied issues and conflicts among workers using negotiation and active listening.
- Led team meetings regularly to discuss progress updates, identify challenges or roadblocks, and provide guidance towards successful project completion.
Store Manager
U.S. Cellular
01.2009 - 04.2013
- Excellence Award Winner recognized for sales and leadership impact.
- Fostered a positive work environment by cultivating strong relationships between team members through team-building activities and consistent recognition of individual achievements.
- Coached sales associates in product specifications, sales incentives, and selling techniques, significantly increasing customer satisfaction ratings.
Education
Bachelor of Science - Marketing & Management
University of Illinois At Chicago
Chicago, ILSkills
- Strategic development
- Sales process optimization
- Client engagement
- Strategic marketing planning
- Client relationship management
- Account strategy development
- Effective relationship management
- Collaborative team development
- Client engagement strategies
- Cross-functional team leadership
Timeline
Rural Market Manager
T-Mobile USA
08.2024 - Current
Retail Development Manager (Stretch Assignment – Metro by T-Mobile)
T-Mobile USA
02.2024 - 08.2024
Retail Store Manager
T-Mobile USA
02.2018 - 08.2024
Signature Associate Manager
T-Mobile USA
03.2014 - 04.2017
Store Manager
U.S. Cellular
01.2009 - 04.2013
Bachelor of Science - Marketing & Management
University of Illinois At Chicago