Carlos Sierra
@carlossierra
I am a bilingual operations leader with 8+ years in logistics, compliance, and team leadership.
What I'm looking for
I am a bilingual operations leader with more than eight years of progressive leadership experience in postal operations, logistics, and customer service. I focus on improving processes, mentoring teams, and delivering measurable results.
As Postmaster and Supervisor, I managed daily operations, financial performance, payroll, and up to 30 employees across multiple offices, ensuring compliance and continuity during staffing transitions. I led process changes that increased office compliance and improved service ratings.
I hold a Lean Six Sigma Yellow Belt and certifications in HAZMAT, workplace safety, PCI compliance, and cybersecurity awareness, and I routinely use postal systems such as TACS, C360, HERO, and ADUS. I coordinate remote teams, train staff, and resolve complex customer issues to boost satisfaction.
I seek a fully remote, service-oriented role where I can apply operational expertise, strengthen compliance, and mentor teams to sustain performance and reduce turnover. I bring practical, results-focused leadership and a commitment to continuous improvement.
Experience
Work history, roles, and key accomplishments
Postmaster
USPS
Aug 2023 - Jan 2025 (1 year 5 months)
Oversaw daily postal operations, financial performance, and personnel management while maintaining policy compliance and improving local service visibility.
Supervisor, Customer Service
USPS
Jan 2019 - Jan 2023 (4 years)
Managed over 30 employees across multiple offices, optimized scheduling and payroll, and drove continuous process improvements to ensure timely delivery and regulatory compliance.
Rural Carrier / RCA
USPS
Jan 2016 - Jan 2019 (3 years)
Executed daily mail and package delivery with accuracy using handheld systems, maintained high service standards during peak periods and staff shortages.
GMP Micro Cleaner
ABM
Aug 2014 - Present (11 years 2 months)
Performed cleanroom maintenance in a regulated environment, adhering to strict GMP and hygiene protocols to support audit readiness.
Education
Degrees, certifications, and relevant coursework
Escuela Secundaria Arturo Rosenblueth
High School Coursework, Secondary Education
Completed high school coursework at Escuela Secundaria Arturo Rosenblueth in Celaya, Mexico.
Frederick High School
High School Diploma, Secondary Education
Completed High School Diploma at Frederick High School in 2014.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Job categories
Skills
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