Sergio Díaz

Junior Data Analyst certified by Google with hands-on experience in data cleaning, analysis, and visualization using SQL, Excel, Tableau, Python and R. Skilled in transforming raw datasets into actionable insights through exploratory data analysis, dashboard development, and data storytelling. Interested in leveraging data to support business strategy and data-driven decision making.

3D Printing & CAD Design Technician at Creali3D (2025-06 – Present)

Designed and manufactured functional 3D components using CAD and additive manufacturing techniques.

• Designed and manufactured 40+ functional components, reducing product development time by 30% through iterative design and rapid prototyping workflows.
• Improved production efficiency by optimizing design parameters and manufacturing workflows.
• Managed multiple client projects simultaneously while ensuring 100% on-time delivery.

Robotics Instructor at Nova Makers (2024-08 – Present)

Taught Python fundamentals and robotics courses to students, developing technical problem-solving skills.

• Taught the course "Python Fundamentals" enabling students to understand Python syntax fundamentals and logical problem-solving through the development of a game project.
• Developed 9 automation and robotics projects improving student project completion rate by 25%.
• Trained 50+ students in technical problem solving and system design methodologies.
• Collaborated with international staff in an English-speaking environment.
• Directed outdoor activities while ensuring compliance with safety procedures.

Electronics Production Assistant at Intesc (2024-05 – 2024-06)

Assembled and tested PCBs with quality control measures to maintain defect rates.

• Assembled and tested 100+ PCBs maintaining a defect rate below 3% through attention to detail and standardized inspection procedures.
• Reduced rework cases by approximately 10% through adherence to soldering temperature controls, process analysis and structured quality verification protocols.

Laser Machining & Additive Manufacturing Intern at Intesc (2024-01 – 2024-05)

Assisted in material processing and manufacturing of mechanical components using laser cutting and FDM printing.

• Assisted in processing multiple materials (acrylic, MDF, PCB, PLA, ABS), ensuring fabrication quality through structured parameter configuration and production process monitoring.
• Manufactured 20+ mechanical components for internal company use, supporting production efficiency improvements by approximately 15%, using FDM printing and laser cutting processes.
• Improved dimensional verification accuracy by implementing systematic caliper-based inspection procedures, reducing assembly misalignment issues during integration.

Camp Counselor (International Experience) at Camp Aldersgate (2022-06 – 2023-08)

Worked as camp counselor in an international English-speaking environment directing outdoor activities.

• Collaborated with international staff in an English-speaking environment.
• Directed outdoor activities while ensuring compliance with safety procedures.

B.S. in Mechatronics Engineering – Benemérita Universidad Autónoma de Puebla (2017 – 2023)