DSG Technology

Duon — Field Safety Inspections

Occupational Health & Safety

Sector
Occupational Health & Safety
Role
Product Designer
Duration
2024 - 2025
Users
SESMT technicians and safety analysts

Duon is a B2B SaaS platform, available on web and mobile, that helps occupational health and safety professionals conduct technical inspections across Brazilian workplaces. I joined the squad as a Product Designer, turning a paper-and-clipboard routine into a mobile experience designed to fit in the palm of their hands.

01

Understanding the workflow before the interface

Before opening Figma, I focused on understanding how safety inspections actually happened. I spent a day accompanying a SESMT technician during inspections and conducted interviews with other professionals to learn about their routines, challenges, and the reality behind the process.

Seeing the work firsthand changed the way I approached the problem. This was not simply about replacing a paper checklist with a digital version. The product needed to support professionals working in dynamic environments, often dealing with different lighting conditions, limited connectivity, and using mobile devices while moving through workplaces.

At the same time, every interaction needed to maintain the accuracy and compliance required by the inspection reports they generate.

The challenge was to transform a manual, paper-based process into a reliable digital experience that could support technicians both in the field and back at the office.

User flow mapping the digital checklist across login, unit selection, hierarchies, risks and specific activities
Flow mapping. From login to a completed technical inspection, every branch and edge case.
02

Translating complex processes into digital experiences

Duon was built to support occupational health and safety professionals managing complex inspection processes across Brazilian workplaces. Within the product team, I partnered with another designer to evolve two different areas of the platform: SESMT workflows and medical management.

My focus was the SESMT side of the product, where I designed the Duon Checklist mobile experience, a key part of the PGR workflow. While my design partner focused on medical management solutions, I worked closely with product and engineering teams to transform safety technicians' routines into clearer, more efficient digital workflows.

The challenge was not simply replacing paper-based processes. It was understanding the complexity behind inspections, regulatory requirements, and documentation needs, while creating an experience that worked for professionals both in the field and in the office.

Mobile screens for the Duon Digital Checklist — splash, login, hierarchy selection and risk characterisation
Duon Digital Checklist. Mobile flow, from splash to a fully characterised specific activity.
Web table view of risks, risk factors, action levels and specific activities with side modal for additional information
Web platform. Risk tables, tolerance thresholds and the modal patterns analysts use to review field data.
03

Building consistency as the product evolved

As the Duon platform grew across different workflows and teams, I helped maintain and evolve the design foundations behind the product, ensuring components, patterns, and interface decisions remained consistent and scalable.

The goal was not just creating reusable UI elements, but building a shared language between design and development that made collaboration smoother and future iterations more efficient.

Beyond the interface, I also contributed to strengthening the design culture within the squad. I facilitated an internal workshop, Design in Digital Product Conception, introducing product design principles to engineers and stakeholders and encouraging earlier discussions around user needs, problems, and possible solutions.

Full wireframe map of the Duon web platform showing screens, modals and connections
Overview of the PGR workflow. A visual representation of key flows, wireframes, and modal states within the platform.
04

A unified ecosystem for occupational safety.

Duon brought field inspections and office analysis into the same flow. By designing for both the technician on the warehouse floor and the analyst at the desk, the platform replaced fragmented paperwork with a single source of truth for safety compliance.

My Contribution

  • End-to-end product design for web and mobile
  • Field research and technician shadowing
  • Design system maintenance and evolution
  • Workshop facilitation on design culture

The impact went beyond the interface itself: technicians were able to complete inspections more efficiently, and the team had a stronger foundation to continue evolving the product.