Strategic Product Growth,
powered by Lean UX
Hello! I’m Stefania Spangenberg, a Senior Product Designer specialized in user research and strategic problem-solving.
With a UCD + Lean UX approach, I craft solutions that align with user needs and drive impactful product development.
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Collaborative leadership

I excel at collaborating with diverse stakeholders, from project managers and engineers to data scientists and designers, ensuring a shared vision and seamless execution.

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Ownership & Impact

I thrive in autonomous environments, taking full ownership of projects from conception to execution, with a focus on driving measurable outcomes.

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User-centered Innovation

I leverage data, metrics, and market analysis to design user-centric solutions, incorporating brainstorming and usability testing to ensure continuous improvement.

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Holistic Product Expertise

I manage the full design process—researching, ideating, prototyping, and iterating—ensuring a product's success by balancing collaboration and independent execution.

Case studies
B2B
WebApp
Lev Capital: Commercial Real Estate Financing
I collaborated closely with the team to strategically enhance the app, improving brokers' workflows and communication with borrowers. I also focused on the borrower experience, designing features that allowed them to easily track deal progress and provide information to brokers.
See project
B2C
iPhone App
PLG
Fennel: Invest in what you believe
I partnered with Fennel as a freelancer to enhance their existing app on the Apple Store. My role involved conducting user interviews and comprehensive testing to pinpoint areas for improvement. I then applied these insights to address the issues and optimize the app’s performance.
See project
B2B
B2D
WebApp
PLG
Forta: Crypto Security Network
To address evolving business needs, we aimed to introduce a system of plans tailored to the diverse needs of our users. Leveraging a strategic approach, I collaborated closely with developers to understand technical limitations and worked together to brainstorm and ideate effective ways to present and set up these plans.
See project
B2B
iPad App
Shiphero: Warehouse Picking Flows
I conducted in-depth research and interviews with warehouse workers to fully understand their daily challenges and the shortcomings of the existing software. Using these insights, I designed a more flexible workflow that supported all picking processes and addressed additional needs that arose during the project.
See project
B2C
Web App
PLG
Restorando:Finding the right restaurant
During this project, I conducted research to understand why we were experiencing a high bounce rate on the restaurant profile page. After gathering valuable insights into user needs, I redesigned the page and tested it with users.
See project
B2B
Web App
iPhone App
Timeular: Meet your goals
Timeular sought to improve users' ability to measure and manage their time. I led a strategic project to define and test goal-setting features, collaborating with the team to explore different structures and insights. This resulted in the design and launch of an MVP that enhances time management and productivity.
See project
Other Designs at a Glance
warehouse fullfilment

ShipHero

Web App to provide easy fulfillment to small merchants.
See Payfully project

Payfully

Responsive Web App that provides capital and liquidity services to real estate agents.
See real estate lending app

Lev Capital Landing

Step by step wizard allowing users to request a quote for their property.
gastronomic mobile app

Restorando Android App

Restaurant Profile Redesign.
See Timeular New Business Model Project

Timeular Plans

The business model was changed and subscription plans were launched.
See Low Carbon Project

Carbon Emissions Landing

ShipHero launched a site to raise awareness about carbon emissions in shipping and how they could be significantly reduced by consumers.
See NestEasy Project

Nest Easy

Web application created by Payfully for property buyers to search brokers' properties.
See Kallpod Project

Kallpod

A mobile ordering platform designed specifically for restaurants and hospitality events, streamlining the customer experience and enhancing service efficiency.
See S+S project

S+S

A Facebook group emerged where women users of a female-centric planner interacted. The planner's founder requested a prototype for an MVP of an app that would facilitate better interaction, addressing needs and desires identified in conducted focus groups.
See Guardians Project

Safeguard Your Crypto Wallet:

This app introduced Guardians, a technology designed to safeguard crypto wallets at varying levels of protection.
See Linkeding Reviews See Linkedin Reviews