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Aarón E.

Mechanical CAD Designer | Maritime Engineer | Technical Documentation & Automation

Spain

Global rank:

35,274 / 152,316

Skill pts: 5

AutoCAD CAD Design Microsoft Excel Python Script Siemens NX CAD/CAM

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About

I am a Maritime Engineering graduate from the University of Cantabria (Spain), with practical experience in industrial product development, mechanical design, technical documentation and engineering process improvement.

Through CantaX Engineering, I offer remote technical support for businesses, entrepreneurs and engineering teams that need clear, structured and reliable deliverables.

**Services I can offer:**
- 3D CAD modelling of mechanical components and assemblies.
- 2D technical drawings and CAD modifications.
- Conversion of sketches and existing drawings into digital CAD models.
- Bill of Materials (BOM) preparation, revision and data checking.
- Basic mechanical concepts, fixtures and positioning mechanisms.
- Python-based automation of repetitive engineering and documentation tasks.
- Technical reports and engineering data processing.

I work with tools including Autodesk Inventor, AutoCAD, Rhino, Python and MATLAB.

**My approach:** I prefer clearly defined projects with agreed requirements, deliverables, deadlines and pricing. I can assist with early-stage designs and documentation, while manufacturing, safety-critical applications and final engineering approvals remain subject to the appropriate technical validation.

You can explore my independent technical demonstrations and portfolio here:

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I am open to small initial assignments as well as ongoing remote collaborations. Feel free to contact me to discuss your project and see whether I can help.

Experience

CantaX Engineering CantaX Engineering · Self-employed Oct 2025 – Present 1 yrs Cantabria, Spain Developing CantaX Engineering, an independent technical portfolio focused on mechanical CAD, engineering documentation and digital tools.

- Created original parametric mechanical design demonstrations, including fixtures, positioning mechanisms and marine equipment concepts.
- Developed a browser-based BOM revision auditing tool for comparing engineering parts lists.
- Developed a dimensional tolerance stack-up calculator with worst-case analysis and Monte Carlo simulation.
- Applied Python, JavaScript and CAD-based workflows to technical modelling, engineering data processing and documentation.
- Published technical demonstrations, source files and supporting documentation for transparent review.

These are independent technical demonstration projects, not previously completed client commissions.

**Portfolio:** https://aaronexposito0-creator.github.io/cantax-engineering-web/work.html
Product Development and Process Engineer Acualé · Full-time Aug 2026 – Oct 2026 2 mos Cantabria, Spain Worked on industrial product development, mechanical design and manufacturing process improvement.

- Created and modified 3D CAD models and technical drawings for industrial products.
- Prepared and reviewed Bills of Materials (BOMs), tolerances and product specifications.
- Supported product prototyping and design improvements.
- Coordinated technical information with production teams and suppliers.
- Reviewed manufacturing documentation, identified technical issues and supported product validation.
- Contributed to improvements in engineering workflows and design standardisation.

**Key skills:** Autodesk Inventor, Mechanical Design, Product Development, Technical Drawings, BOM Management, Manufacturing Processes, Prototyping.
Naval CAD Design Engineering Intern JC Navalips · Internship Jun 2026 – Aug 2026 2 mos Maliaño, Cantabria, Spain Worked in the technical design department, supporting naval propulsion component development and manufacturing documentation.

- Developed parametric 3D CAD models of fixed-pitch and controllable-pitch propellers (FPP/CPP), hubs and propulsion components using Siemens NX.
- Worked with complex mechanical geometries and manufacturing-oriented CAD models.
- Processed hydrodynamic and geometric data related to machining and casting.
- Supported technical design activities and preparation of CAD models for manufacturing workflows.

**Key skills:** Siemens NX, 3D CAD Modelling, Parametric Design, Naval Engineering, Mechanical Components, Technical Documentation.
Marine Engineering R&D Intern Astander · Internship Jun 2025 – Sep 2025 3 mos Astillero, Cantabria, Spain Completed an engineering internship in the Research, Development and Innovation department of Astander shipyard.

- Supported technical activities related to the HYDROSTORE and APOLO innovation projects.
- Analysed technical documentation and interpreted engineering drawings.
- Prepared and organised engineering project information and technical reports.
- Developed Excel-based tools for engineering calculations and project data consolidation.
- Gained practical exposure to shipyard engineering processes and maritime innovation projects.

**Internship evaluation:** 9.5/10.

**Key skills:** Marine Engineering, Technical Documentation, Engineering Analysis, Microsoft Excel, Research and Development.

Education

Nebrija University / Structuralia Continuing Education Master's Degree, Big Data & Business Analytics, 9,7 2026 – 2027 (expected) Currently pursuing a continuing education master's programme in Big Data and Business Analytics, focused on data processing, analytics and practical applications of digital technologies to business and engineering environments.

Relevant technical interests include Python, SQL, data visualisation and automation of industrial information workflows.
University of Cantabria Bachelor's Degree, Maritime Engineering option Naval Construction and Architecture, 7 2022 – 2026 Activities and Societies: null Bachelor's Degree in Maritime Engineering, covering marine mechanical systems, fluid mechanics, propulsion, energy systems, engineering materials, technical design and industrial processes.

Final Degree Project: Conceptual design of an autonomous offshore e-methanol production platform integrating a 15 MW wind turbine, hydrogen production, methanol synthesis and technical simulations.

Other experience

Independent Mechanical CAD & Engineering Software Projects I develop original mechanical design and engineering software demonstrations through CantaX Engineering, an independent technical initiative.

Selected projects:

- CX-01: Parametric mechanical fixture with CAD documentation, component lists and geometric checks.
- AX-02: Linear positioning mechanism with mechanical design and motion calculations.
- MX-03: Marine instrument deployment arm concept with kinematic analysis.
- DT-04: Interactive Bill of Materials revision auditing tool.
- TS-05: Dimensional tolerance stack-up calculator with worst-case analysis and Monte Carlo simulation.

These projects demonstrate my ability to combine CAD modelling, mechanical reasoning, technical documentation and software development.

The portfolio contains independent demonstrations rather than completed customer commissions.

Portfolio:
https://aaronexposito0-creator.github.io/cantax-engineering-web/work.html

Licenses & Certifications

Aptis English Certificate — B2 British Council Aug 2022 – Present