David Hernandez Sierra
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David Hernandez Sierra Email & Phone Number

Customer Service - Troubleshooter at Chevron
Location: Mexico City Metropolitan Area, Mexico, Mexico 7 work roles 2 schools
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✓ Verified Jun 2026 3 data sources Profile completeness 100%

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Current company
Role
Customer Service - Troubleshooter
Location
Mexico City Metropolitan Area, Mexico, Mexico
Company size

Who is David Hernandez Sierra? Overview

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Quick answer

David Hernandez Sierra is listed as Customer Service - Troubleshooter at Chevron, a company with 66351 employees, based in Mexico City Metropolitan Area, Mexico, Mexico. AeroLeads shows a matched LinkedIn profile for David Hernandez Sierra.

David Hernandez Sierra previously worked as Customer Service Specialist at Chevron and Troubleshooter Specialist at Latchel. David Hernandez Sierra holds Diploma Applied Statistics To Process, Statistics from Universidad Nacional Autónoma De México.

Company email context

Email format at Chevron

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Chevron

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Profile bio

About David Hernandez Sierra

Chemical Engineer background. Customer Service and Supply Chain in Food and Beverage Industry as well as Digital Services. Focused on problem resolution, complaints, and resource planning. Supports teamwork decisions with statistics tools, process mapping, and analysis.

Listed skills include Microsoft Excel, Microsoft Powerpoint, Microsoft Office, Microsoft Word, and 3 others.

Current workplace

David Hernandez Sierra's current company

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Chevron
Chevron
Customer Service - Troubleshooter
san ramon, california, united states
Website
Employees
66351
AeroLeads page
7 roles

David Hernandez Sierra work experience

A career timeline built from the work history available for this profile.

Customer Service Specialist

Current

Ciudad De México, México

Customer service representative. National distributor and direct client attention

Feb 2023 - Present

Troubleshooter Specialist

Ciudad De México, México

  • Assessment, de-escalation, and immediate coordination for emergency maintenance requests related to properties across the US real estate market. Service providers and property managers have active communication to.
  • Daily interaction for an average of +40 emergency maintenance requests with KPI’s for Customer satisfaction (average 4.4/5 rate), time handled (<15 mins first contact), and quality process compliance.
Mar 2021 - Dec 2022

Subject Matter Expert

Mexico

  • Real-time support role for team representatives/customer relations to accomplish the resolution of escalated or specific issues. Provided technical and non-technical training to ensure the capability of representative.
  • Over 10 trained waves of new agents in less than 6 months.
Sep 2020 - Feb 2021

Bilingual Customer Service Representative

Mexico City Metropolitan Area

  • Provided individual attention to the US wireless telecom market account users. Issue resolution, credit handling, account changes and orders for equipment, device, and services. Tech support with remote tools focused.
  • KPI's for adding value (average +$10/account), customer satisfaction (>95%), and quality process compliance.
Apr 2020 - Sep 2020

Collaborator

Presto (Small Catering Service)

Mexico City Metropolitan Area

Jun 2019 - Feb 2020

Coordinator Customer Facing (Servicio Al Cliente)

Ciudad De México Y Alrededores, México

  • Mainly focused on Case Fill Rate (CFR)>95% for National Retail clients. Management for 250+ SKUs on a $500 million MXN monthly average delivered product (1000+ purchase orders) on SAP.
  • Project executed for the delivery time reduction, a decrease of the missing product on delivered palled, shelf, and inventory, increasing CFR to 97-98.5%.
Mar 2016 - Aug 2017

Trainee Sbt

Ciudad De México Y Alrededores, México

  • Self-developed and operating project to reduce 30% of storage space from raw & package material warehouse, saving up 10% of the storage budget.
  • Mapping full process on delivery and collection on small business for Continuous Improvement area on the Distribution Center.
Oct 2014 - Mar 2016
Team & coworkers

Colleagues at Chevron

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2 education records

David Hernandez Sierra education

Diploma Applied Statistics To Process, Statistics

4 months (Oct 2017 - Jan 2018) Focused on statistical tools applying them to simplify the actual process, defining measurable results, and.

FAQ

Frequently asked questions about David Hernandez Sierra

Quick answers generated from the profile data available on this page.

What company does David Hernandez Sierra work for?

David Hernandez Sierra works for Chevron.

What is David Hernandez Sierra's role at Chevron?

David Hernandez Sierra is listed as Customer Service - Troubleshooter at Chevron.

Where is David Hernandez Sierra based?

David Hernandez Sierra is based in Mexico City Metropolitan Area, Mexico, Mexico while working with Chevron.

What companies has David Hernandez Sierra worked for?

David Hernandez Sierra has worked for Chevron, Latchel, Sykes, Presto (Small Catering Service), and Nestlé.

Who are David Hernandez Sierra's colleagues at Chevron?

David Hernandez Sierra's colleagues at Chevron include Маргарита Кошелева, Sherif Samy, Rosella Plummer, Gilson Castelao, and Stuart Hall.

How can I contact David Hernandez Sierra?

You can use AeroLeads to view verified contact signals for David Hernandez Sierra at Chevron, including work email, phone, and LinkedIn data when available.

What schools did David Hernandez Sierra attend?

David Hernandez Sierra holds Diploma Applied Statistics To Process, Statistics from Universidad Nacional Autónoma De México.

What skills is David Hernandez Sierra known for?

David Hernandez Sierra is listed with skills including Microsoft Excel, Microsoft Powerpoint, Microsoft Office, Microsoft Word, Industria Alimentaria, Liderazgo De Equipos, and English.

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