Helping informal entrepreneurs manage their finances

During my time at IDEO San Francisco, I joined La Victoria Lab in Lima, Peru, for a project with Interbank. As part of their digital transformation strategy, we set out to design a service that would help small entrepreneurs better manage their finances and improve the long-term sustainability of their businesses.

Context

Context

Context

Organization

Timelimne

2017 (4 months)

Role

Lead Interaction Designer

Scope

UI/UX • Strategy

Goal

During my time at IDEO San Francisco, I joined La Victoria Lab in Lima, Peru, for a project with Interbank. As part of their digital transformation strategy, we set out to design a service that would help small entrepreneurs better manage their finances and improve the long-term sustainability of their businesses.

Outcome

Outcome

Outcome

Your finances in your pocket

For small, often informal entrepreneurs in Peru, running a business means juggling orders, payments, and records across notebooks, text messages, and memory.


The value proposition of Nando was simple: bring clarity and peace of mind by putting financial management, order tracking, and insights into one mobile app.

Process

Process

Process

Problem scope

The project began with uncertainty: even the problem space wasn’t clear. We first decided to focus on small, informal entrepreneurs, then used prototypes to explore which challenges mattered most.


To test different directions, we built fake landing pages for potential services and showed them during in-person interviews, gauging reactions and refining our hypotheses until financial management emerged as the most pressing opportunity.

Designing while building

Once the concept was defined, we moved into implementation through weekly sprints—designing, testing, and building in parallel. We collaborated closely with an external engineering partner and continuously co-created with real users in their homes, workplaces, and the lab.

Design principles

To make Nando usable in the fast-paced, often hectic environments of our users, we developed a set of principles centered on Effortless Interactions—ensuring the interface stays responsive, forgiving, and easy to operate on the go.

Smooth input

🖐️

Optimize for one-handed use. Keep forms short, and minimize required fields.

Smooth input

🖐️

Optimize for one-handed use. Keep forms short, and minimize required fields.

Smooth input

🖐️

Optimize for one-handed use. Keep forms short, and minimize required fields.

Natural language

💬

Avoid technical jargon. Phrase labels and messages as clear, conversational questions.

Natural language

💬

Avoid technical jargon. Phrase labels and messages as clear, conversational questions.

Natural language

💬

Avoid technical jargon. Phrase labels and messages as clear, conversational questions.

Functional colors

🌈

Use a minimal, consistent palette to guide attention and communicate meaning.

Functional colors

🌈

Use a minimal, consistent palette to guide attention and communicate meaning.

Functional colors

🌈

Use a minimal, consistent palette to guide attention and communicate meaning.

Copyright © 2026 Julian Kraan. All rights reserved.

Copyright © 2026 Julian Kraan. All rights reserved.

Copyright © 2026 Julian Kraan. All rights reserved.

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