Ruth Guerra
San Francisco,CA
Summary
Mechanical / Dimensional Engineer with deep experience leading vehicle-level dimensional strategy and precision fixture development across global manufacturing programs. Proven track record of delivering full-vehicle cubing, variation analysis, and datum strategies for high-volume production launches. Expert in translating design intent into manufacturable, data-driven solutions through cross-functional collaboration with design, metrology, and suppliers. Driven to build robust, scalable systems that enable quality, speed, and innovation from concept through production.
Overview
5
5
years of professional experience
7
7
Certifications
Work History
Mechanical Design Engineer, Dimensional
TESLA, INC.
Fremont, United States
11.2024 - Current
- Led full-vehicle cubing strategy for two major vehicle programs, overseeing design and manufacturing of GA components.
- Conducted Dimensional Variation Analysis (DVA) on over 100 components, establishing datum strategies to enhance tooling and inspection methods.
- Developed and managed comprehensive point-cloud models for full vehicles, ensuring coverage of critical dimensional characteristics.
- Addressed high-risk quality and manufacturing issues during Model Y refresh, refining design and locating strategies to meet timing and dimensional targets.
Dimensional Automation - Quality Engineer
TESLA, INC.
Grünheide (Mark), Germany
04.2024 - 11.2024
- Led the deployment of automated 3D vision and gap-and-flush inspection systems across GA and BIW, enabling 100% pre-fit body coverage, eliminating manual CMM/SPC workflows, and delivering real-time feedback to drive closed-loop manufacturing improvements.
- Built scalable dimensional data systems and standards (automated shim tracking, global data transfer frameworks, ADSR benchmarks) to enable data-driven decision-making across factories, suppliers, and future programs.
- Owned end-to-end dimensional strategy for complex assemblies, from system definition through factory deployment, integrating hardware, software, and manufacturing to improve robustness, reduce rework, and accelerate production readiness.
Dimensional Quality Engineer (Model Y and Model 3)
TESLA, INC.
Fremont, United States
05.2022 - 03.2024
- Owned dimensional engineering and metrology strategy for high-volume automotive assemblies, defining datums, build points, and inspection methods across closures and body-in-white to ensure assembly robustness and product quality.
- Designed, validated, and deployed 40+ checking fixtures and point-cloud inspection programs, applying GD&T, GR&R, and measurement error studies to enable reliable, production-ready metrology.
- Drove measurable quality improvements through data and tooling optimization, increasing dimensional capability from 55% to 85%, and improving assembly accuracy via targeted datum and process enhancements.
Quality Engineer (Light Duty Truck - Exteriors)
GENERAL MOTORS
Roanoke, United States
04.2021 - 04.2022
- Used data-driven root cause analysis (Pareto, RedX, customer audits, warranty data) to identify failure modes and prioritize high-impact fixes in production systems.
- Deployed technical and process improvements (vision system upgrades, preventive controls, operator training) reducing warranty claims by 76% and cutting direct run losses by 40%.
- Led cross-functional and supplier containment efforts, translating customer and quality metrics into actionable engineering decisions presented to plant leadership.
Education
Bachelor of Science - Industrial Engineering, Minor in Economics
Purdue University
West Lafayette, IN12-2020
Skills
- DFM and DFMEA
- Geometric dimensioning and tolerancing
- Dimensional variation analysis
- CATIA V5/V6
- Prototyping techniques
- Jira project management
- Six Sigma methodologies
- Lean manufacturing principles
- PolyWorks software
- Minitab statistical analysis
- Measurement system analysis
- MATLAB programming
- R programming language
- C programming language
- Python programming language
- Arena simulation software
Certification
Engineering Leadership (eCornell)
Community Service
- Served as Social Chair for Women in Tesla - East Bay Chapter
- Social Media Director & Alumni Mentor for SHPE Purdue
- Member of Purdue Women in Engineering
- Delta Delta Delta Sorority
- IISE
- Volunteer with Habitat for Humanity
- SF Marin Food Bank
Awards
- Tesla Quality Recognition Award, 11/2023
- Tesla Fremont Accelerator of the Month, 03/2023
- Tesla Fremont Employee of the Month, 09/2022
- GM Award for Making a Difference, 10/2021
- Purdue University Semester Honors, Fall 2020
Languages
English
Native/ Bilingual
Spanish
Native/ Bilingual
Timeline
Mechanical Design Engineer, Dimensional
TESLA, INC.
11.2024 - Current
Dimensional Automation - Quality Engineer
TESLA, INC.
04.2024 - 11.2024
Dimensional Quality Engineer (Model Y and Model 3)
TESLA, INC.
05.2022 - 03.2024
Quality Engineer (Light Duty Truck - Exteriors)
GENERAL MOTORS
04.2021 - 04.2022
Bachelor of Science - Industrial Engineering, Minor in Economics
Purdue University