Mateus Sonnewend

Mechanical engineer role at Toptal (Jun 2026–Present). Responsibilities were not specified in the provided work experience details.

Develops high-fidelity Siemens NX 3D models and 2D drawings for electric and fuel cell bus chassis components, ensuring DFM and assembly compliance. Designs engine/transmission coolant and BTMS thermal routing, performs structural/modal analysis in Altair SimSolid, and manages ECO/ECN changes in Siemens Teamcenter with delivery tracking in Jira.

The PAC Group / GILLIG (USA - Remote)
Senior Mechanical Design Engineer | Jan 2024 – Present

3D Modeling & 2D Detailing: Developing high-fidelity 3D models (Siemens NX) and comprehensive 2D technical drawings for chassis components, ensuring full compliance with Design for Manufacturing (DFM) and assembly standards for Electric and Fuel Cell bus platforms.

Thermal Systems & Routing: Designing co

The PAC Group / Monarch Tractor (USA - Remote)
Senior Mechanical Design Engineer | May 2022 – Jan 2024

Autonomous E-Mobility Innovation: Engineered structural metal components and exterior plastic body parts for the first-ever commercialized electric autonomous tractor in the US market.

Surface & Plastic Design: Executed complex 3D modeling and surfacing for plastic components using SolidWorks,

Pemacri / Solar Plus (Brazil)
Senior Mechanical Engineer | Technical Sales & Project Management
Sep 2019 – Jun 2022

Business Development & Prospecting: Drove business growth by actively prospecting new B2B clients and identifying opportunities for high-volume UV water treatment systems and industrial engineering services.

Technical Sales Engineering: Acted as the technical lead during the sales

Led technical sales and project management for UV water treatment systems and industrial engineering services. Translated client requirements into engineering proposals and managed end-to-end technical implementation and refurbishment projects while supporting profitability-focused client delivery.

MSX International (Ford Motor Company)
Product Engineer | Occupant Packaging & Vehicle Architecture Jan 2014 – Aug 2016

Occupant Space Attribute Ownership: Responsible for defining and validating occupant accommodation attributes for global vehicle programs, ensuring the perfect balance between interior comfort, ergonomics, and structural constraints.

Regulatory Compliance (SAE J1100): Acted as

The PAC Group (Ford Motor Company)
Senior Product Engineer | BIW Structural Surfacing | Jun 2010 – Jan 2014

Advanced Structural Surfacing: Performed high-complexity 3D surface modeling for Body-in-White (BIW) structures using CATIA V5, developing outer and inner panels with focus on geometric continuity and structural integrity.

Stamping & Tooling Optimization: Engineered surface transitions and

PTI Design (Ford Motor Company)
Product Design Engineer | Interior & Exterior Trim | Set 2007 – Jun 2010

Trim Component Development: Developed 3D models and technical documentation for Interior and Exterior Trim components for the New EcoSport (B515) global platform, ensuring alignment between styling intent and engineering feasibility.

Soft Trim Expertise: Engineered Soft Trim solutions, includ

Ativa Engenharia (Salvador, BA)
CATIA V5 Instructor & Technical Monitor | Mechanical Design Specialization

Technical Instruction: Served as a lead instructor for CATIA V5 modules, teaching advanced 3D modeling, assembly design, and drafting techniques to engineering professionals and students.

Methodology Mastery: Applied the "Ativa Engenharia" teaching methodology, translating complex automotiv

Instructed CATIA V5 modules focused on advanced 3D modeling, assembly design, and drafting techniques for engineering professionals and students. Mentored learners through complex mechanical projects and supported curriculum delivery with technical audits of parametric design models.

Braskem (UA3 Unit - Brazil)
Logistics Operations Supervisor

Operational Coordination: Supervised end-to-end warehouse and logistics operations, including material movement, strategic storage, and high-volume shipping, ensuring an efficient and lean workflow.

Inventory Accuracy & Control: Implemented rigorous inventory management protocols and auditing processes, achieving high levels of precisio

Supervised end-to-end warehouse and logistics operations, including material movement, strategic storage, and high-volume shipping in a high-stakes industrial environment. Managed inventory accuracy, streamlined logistics bottlenecks with attention to industrial safety (HSE) and on-time delivery, and coordinated equipment and workforce scheduling.

Coordinated port logistics and export operations within a bonded terminal, leading loading/unloading activities. Ensured customs and regulatory compliance, managed shipping documentation and inspections, and acted as liaison between port authorities, customs officials, and customs brokers to support clearance and movement of high-volume products.

Intermarítima Terminal Logístico (Salvador, BA)
Logistics & Export Operations Coordinator

Port Logistics & Stevedoring Leadership: Led multidisciplinary teams in loading and unloading operations within a Bonded Terminal, ensuring the safe and efficient handling of industrial and chemical cargo for global export.

Customs & Regulatory Compliance: Coordinated all export logistics flows in strict ad