Human Factors Engineer - Brasil

We are Nacar.

A solution-first creative partner helping ambitious organizations shape and deliver the right products, services and experiences - with clarity, rigor and creative excellence.

Rooted in Palo Alto, Barcelona, and with studios in Bilbao, Guadalajara, Porto Alegre and China, we're a global team of 130+ Nacarians from more than 23 nationalities. This role will be based in our Porto Alegre studio.

Twenty years, 70 design awards and 10+ client ecosystems later, we've learned that creativity is only worth something when it turns into real solutions. That's why we work in a way that connects craft with systems - building things that don't just look right, but perform, scale and generate measurable value for our clients.

A Nacarian is a creative orchestrator, shaped by Criteria, Adaptability and Ownership. Someone who reads complexity, anticipates what matters, and moves fast with intent. We come from different disciplines - strategy, research, industrial and digital design, brand, service, engineering - but we share the belief that great ideas only matter when they become real.

Nacar is entering a new chapter. We're strengthening our capabilities, growing into new markets, and building the organization that will shape what's next. With a hybrid work model and flexible hours, we're powered by a culture of communication, collaboration and ownership - with the ambition of becoming the trusted creative decision partner for the leaders redefining the future of their industries.

If you're excited by building - not just joining - this is a great moment to be here.

Is this something you feel identified with?

We're currently looking for a Human Factors Engineer to join our Porto Alegre studio. In this role, you will apply Human Factors Engineering (HFE) principles to the development of cutting-edge medical devices, diagnostic systems, and healthcare services for global leaders in the industry.

You will work closely with cross-functional teams and UX/UI designers, ensuring that complex clinical solutions-ranging from laboratory analyzers to Point of Care devices-are safe, effective, intuitive, and compliant with international usability standards

Requirements

-What will your day to day be like?-

• Usability Requirements & Analysis: Identify, verify, and validate user groups, clinical tasks, hazard-related use scenarios, and usability risks.

• Usability Testing & Studies: Plan, execute, and report on both formative and summative usability studies, working independently or alongside external agencies.

• Regulatory Compliance & Files: Create, maintain, and review Usability Engineering Files (UEF) in accordance with IEC 62366 and current FDA Human Factors Guidance.

• Risk Management Support: Collaborate on risk analysis activities under ISO 14971, integrating usability findings into risk control measures.

• Design & Audit Support: Work alongside UX/UI teams to translate customer and regulatory requirements into solid design decisions, and support project teams during regulatory audits.

• Mentorship & Practice: Coach and support junior designers on HFE methodologies, foster a culture of open design critique, and promote user-centric design within projects.

-What are we looking for?-

• Education: Degree (BSc) in Human Factors Engineering, Biomedical Engineering, Industrial Design, Science, or a related technical field.

• Experience: 2 to 5 years of hands-on experience applying Human Factors Engineering within the medical device, diagnostic, or regulated healthcare sectors.

• Standards & Regulations:

  • In-depth understanding of IEC 62366 and the latest FDA Guidance on Human Factors.

  • Working knowledge of ISO 14971 (Risk Management) and IEC 62304 (Medical Device Software).

• Domain Knowledge: Experience or interest in diagnostic and healthcare environments (e.g., Core Lab, Point of Care, Molecular Lab, Pathology).

• Usability Research: Proven ability to organize and run usability studies (formative and summative) with healthcare professionals or laboratory personnel.

• Mindset & Soft Skills:

  • Ability to work autonomously with minimal guidance while managing time in complex, changing environments.

  • Strong communication skills to present human factors principles clearly to multidisciplinary teams.

  • Willingness to mentor team members and give/receive constructive design feedback.

• Languages: Professional working proficiency in English (required for global projects).

-Why should you join?-

This is a unique opportunity for someone looking for a challenge in the human factors engineering area and to be part of a center of innovation that is impacting clients all over the world - joining our growing Porto Alegre studio and working on high-impact pharmaceutical and medical device projects. Let's thrive together in a culture built on trust, collaboration, respect and high performance

We also offer:

Permanent contract.

Competitive salary

Hybrid working model - you can either work from home or enjoy our beautiful offices in Tecnopuc

Join a dynamic +15 nationalities community and enjoy our virtual activities.

Keep challenging yourself with our Nacar Academy training program, aligned with the creation of personalized career paths.

30 paid vacation days.

Raio card

Flexible working hours.