Sergio Quesada
Placentia
Summary
Detail-oriented QA Associate with proven expertise in testing, documentation, and quality standards. Known for implementing continuous improvement initiatives to enhance product quality and streamline QA processes.
Overview
7
7
years of professional experience
Work History
QA Associate
Partners Personnel
Fullerton
04.2026 - 07.2026
- Executed QA testing on finished products prior to release to ensure compliance with quality standards.
- Collaborated with development, operations, and QA teams to enhance product quality and streamline testing workflows.
- Implemented continuous improvement initiatives within the organization's QA processes.
- Worked closely with QA team to ensure that all aspects of the product meet specified requirements before release.
- Evaluated the effectiveness of current QA processes against established standards and procedures.
- Evaluated effectiveness of existing QA processes and identified improvement opportunities to align with best practices.
- Created and maintained documentation for all QA activities including bug reports, test plans, requirements specifications.
- Maintained an organized system of records pertaining to all aspects of QA activities including test results and investigations.
- Maintained up-to-date knowledge of industry trends related to QA processes.
Machine Operator
New View Staffing
Orange
01.2026 - 04.2026
- Operated machinery to produce high-quality products in a fast-paced environment.
- Monitored and evaluated equipment operations to identify failures or malfunctions and troubleshoot issues accordingly.
- Monitored equipment performance and reported issues to maintain production flow.
- Assisted in setting up production lines for different product runs efficiently.
- Adjusted machine settings according to product specifications.
- Collaborated with team members to troubleshoot any issues that arose during production runs.
- Collaborated with team members to meet daily production targets effectively.
- Conducted routine inspections of machinery to identify maintenance needs promptly.
- Identified defective parts during inspection process and reported them to supervisor immediately.
- Performed minor repairs on machinery as instructed by supervisor.
- Documented production data accurately for tracking and compliance purposes.
- Followed safety protocols to ensure a safe working environment for all team members.
- Maintained cleanliness and organization of the work area throughout shifts.
- Cleaned and maintained work area to ensure safety and organization. the work area to ensure safety and organization at all times.
- Measured and weighed items to meet quality standards and prevent waste.
- Separated products according to weight, grade and size of material to produce final product.
- Classified defects from finished products for quality control purposes. from finished orders for record tracking and statistics.
- Prepared machine for production processes by equipping with required tools and parts.
- Separated products according to weight, grade and size of material to produce final product.
Heavy Duty Assembler
AnDek Staffing
Orange
08.2025 - 01.2026
- Assembled mechanical components using hand tools and power equipment.
- Followed blueprints and technical drawings to complete assembly tasks.
- Utilized heavy machinery and various tools to measure and assemble units according to specifications.
- Read blueprints and diagrams to determine proper assembly techniques.
- Conducted quality checks on assembled products for compliance with standards.
- Verified that all connections are secure before moving on to the next step in the process.
- Collaborated with team members to streamline assembly processes.
- Collaborated with quality control professionals and other assembly teams.
- Looked for faulty components in assembly processes to prevent accidents and errors.
- Maintained a clean and organized workspace to ensure safety and efficiency.
- Maintained cleanliness of work area to ensure safety and efficiency. to maintain a safe working environment.
- Follow safety regulations when operating equipment and handling materials.
- Communicate effectively with supervisors regarding any issues that arise during the assembly process.
- Adjust and replace defective or improperly functioning parts or assemblies.
- Perform minor repairs on mechanical components such as tightening loose screws, nuts, bolts.
- Use calipers, micrometers, height gauges, protractors and other measuring instruments to ensure accuracy of assembly.
- Keep accurate records of parts used during each assembly task.
- Manage inventory of assembly parts and tools.
- Documented assembly processes and outcomes for quality assurance and future reference.
- Maintain records of all production activities including quantity produced, quality control results and inspection data.
- Performed finishing work such as deburring, painting and polishing.
- Engaged in the disassembly and reassembly of mechanical systems for repair and maintenance purposes.
- Inspected, operated and tested completed products to verify conformance to customer specifications.
DoorDash Delivery Driver
DoorDash
Fullerton
11.2024 - 08.2025
- Delivered food orders promptly to customers in designated areas.
- Communicated effectively with customers regarding order status and delivery times.
- Navigated efficiently using GPS tools to optimize delivery routes.
- Coordinated with restaurants to confirm order accuracy before pickup.
- Communicated with customers to confirm delivery times and provide updates. to confirm delivery times and ensure timely arrivals.
- Promoted positive customer service by delivering on-time shipments and fully resolving issues.
- Assisted in resolving customer inquiries and issues during deliveries.
- Managed customer payments and handled cash transactions securely.
- Adhered to company protocols for food safety and handling procedures.
- Maintained vehicle cleanliness and ensured safe driving practices at all times.
Production Lead/Quality Assurance Coordinator
Best Formulations LLC
Huntington Beach
08.2024 - 11.2024
- Supervised daily production activities to ensure efficient workflow.
- Coordinated material flow and inventory management for production needs.
- Monitored equipment performance to maintain operational efficiency and quality.
- Implemented standard operating procedures to enhance production consistency.
- Oversaw workstation setup and operation and mobilized production line and shift employees to meet customer quality standards and schedules.
- Collaborated with team members to resolve production issues promptly.
- Trained new team members on safety procedures and operational tasks.
- Conducted regular inspections to ensure compliance with safety regulations.
- Prepared reports on production metrics such as output, waste, cost.
- Analyzed data from past production runs to identify trends or issues.
- Conducted performance reviews with team members to ensure goals are being met.
- Inspected machinery operation regularly to ensure optimal performance. visually, addressed issues by performing minor maintenance and escalated serious problems to management or maintenance personnel.
- Produced quality products by palletizing, packaging and assembling finished items.
- Attached identification labels to finished packaged items or stamped lot number and shipping destination information on containers.
- Classified defects from finished orders for record tracking and statistics.
- Reported problems or concerns with quality, processes, equipment, materials and labor to supervisor.
- Provided team members with necessary hand tools and equipment for efficient job performance.
- Worked closely with management team to develop long-term plans for growth.
- Classified defects from finished orders for record tracking and statistics.
Lead Machine Operator
Vytalogy Wellness LLC
Santa Ana
08.2023 - 07.2024
- Monitored equipment performance and maintained operational efficiency throughout shifts.
- Adjusted cutting speeds, feeds, tooling and work-holding devices to optimize machining operations.
- Troubleshot equipment issues to minimize downtime during operations.
- Troubleshot machine malfunctions and performed necessary repairs.
- Conducted routine inspections to ensure equipment met safety standards.
- Conducted daily inspections of plant systems, identifying and addressing potential problems proactively.
- Enforced safety regulations to promote a safe working environment for all staff.
- Trained new operators on safety protocols and machine handling procedures.
- Trained personnel on safe handling procedures for hazardous materials used during production processes.
- Collaborated with team members to streamline production workflows and processes.
- Collaborated with engineering staff to implement process improvements that enhanced operational efficiency.
- Worked closely with Quality Control personnel to ensure products meet standards.
- Monitored the production process to ensure proper operation and quality standards were met.
- Assisted with troubleshooting issues related to product design or material selection.
- Maintained accurate records of production activities and machine maintenance logs.
- Verified production orders prior to starting set-up.
- Prepared machine for production processes by equipping with required tools and parts.
- Monitored and observed production line to watch for pile-ups and jams.
- Identified potential hazards in the workplace and took corrective action when needed.
- Documented and recorded critical metrics in database related to pressure, temperature, level and flow data to maintain and update accurate repair logs.
- Interpreted results of process control analysis and made adjustments to optimize plant performance.
- Managed chemical inventory levels to ensure availability for production processes.
Production Assembler
Oakley
Foothill Ranch
05.2023 - 07.2023
- Assembled components and sub-assemblies according to written instructions and diagrams, ensuring quality standards.
- Assembled components using hand tools and power equipment efficiently.
- Collaborated with team members to consistently meet production deadlines, contributing to workflow efficiency.
- Maintained a clean and organized work area to ensure safety standards.
- Repaired defective parts using appropriate machinery or hand tools.
- Rotated through a series of different stations based on team needs.
- Participated in continuous improvement initiatives to refine assembly processes and enhance product quality.
Assembly Line Worker
OceanX
Foothill Ranch
02.2023 - 04.2023
- Assembled component parts of items and completed hand-finishing of final products.
- Worked quickly and efficiently while maintaining high standards of quality control.
- Inspected products for quality control and compliance with standards.
- Followed standard operating procedures while performing tasks on the assembly line.
- Ensured cleanliness and organization of work area to support efficient operations.
- Collaborated with team to sustain line productivity and consistently meet deadlines.
- Built and packaged products to comply with multiple work orders and deadlines.
- Placed products in equipment or on work surfaces for further processing, inspecting or wrapping.
- Identified and reported equipment malfunctions to supervisors promptly.
- Reported any safety hazards or defective parts encountered during assembly operations.
Customer Service Representative
Ace Parking
Newport Beach
10.2022 - 01.2023
- Managed customer inquiries through phone and email communications.
- Handled escalated complaints with empathy and understanding.
- Promoted high customer satisfaction by resolving problems with knowledgeable and friendly service.
- Resolved parking-related issues efficiently and professionally.
- Assisted customers with payment processing and account management.
- Maintained accurate records of customer interactions and transactions.
- Provided information on parking services and facility locations.
- Remained calm and professional in stressful circumstances and effectively diffused tense situations.
Sales Porter
Toyota of Orange
Orange
12.2019 - 10.2022
- Engaged with customers to enhance their dealership experience and satisfaction.
- Greeted customers upon arrival, providing excellent customer service.
- Assisted customers with vehicle inquiries and product information.
- Coordinated vehicle preparations for customer deliveries and test drives.
- Maintained cleanliness and organization of the showroom and dealership lot.
- Cleaned cars both externally and internally by hand or with use of automated equipment.
- Inspected vehicle to verify pristine appearance for customer.
- Waxed exterior of vehicles, removed compound with soft cloth and buffed to brilliant shine.
- Checked vehicles prior to service and immediately afterward to identify damages.
- Inspected vehicles thoroughly before and after detailing to ensure quality of work.
- Identified damaged goods and reported them to management immediately.
- Organized backroom storage areas, including shelving units, bins and racks.
Education
High School Diploma -
Orange High School
Orange, CA06-2017
Skills
- QA testing
- QA standards
- Quality standards
- Test documentation management
- Test automation
- QA process evaluation
- Process improvement
- Production monitoring
- Team collaboration
- Time management
Languages
English
Professional
Spanish
Professional
Timeline
QA Associate
Partners Personnel
04.2026 - 07.2026
Machine Operator
New View Staffing
01.2026 - 04.2026
Heavy Duty Assembler
AnDek Staffing
08.2025 - 01.2026
DoorDash Delivery Driver
DoorDash
11.2024 - 08.2025
Production Lead/Quality Assurance Coordinator
Best Formulations LLC
08.2024 - 11.2024
Lead Machine Operator
Vytalogy Wellness LLC
08.2023 - 07.2024
Production Assembler
Oakley
05.2023 - 07.2023
Assembly Line Worker
OceanX
02.2023 - 04.2023
Customer Service Representative
Ace Parking
10.2022 - 01.2023
Sales Porter
Toyota of Orange
12.2019 - 10.2022
High School Diploma -
Orange High School