Hej! 👋
I’m Caroline Martins — a UI/UX Designer based in Sweden.
I design internal communication systems and digital products for enterprise and public sector clients.
I work across mobile apps and web platforms.
Currently designing at Appspotr Studios in Malmö.
Projects
Jernhusen Communication System
Multi-region communication system & depot display solution (Syd, Väst, Nord)
Nordiska Kompaniet
Internal Communication App & Web Platform
Brinova Fastigheter
Tenant Engagement and Property Management App
Bookhub
Marketplace App and Style Guide Design
Ung i Värmdö
Youth Engagement App for Värmdö Municipality
Youth Engagement App for Värmdö Municipality
📱 Ung i Värmdö — App for Värmdö Municipality
Värmdö is a vibrant municipality in the Stockholm archipelago experiencing significant growth. With a large portion of its population being young people, the municipality recognized the importance of creating an accessible and engaging communication channel tailored specifically for youth. The new app serves as a central hub for activities, events, and support resources — designed to empower young residents and strengthen community connection.
| Role | Platform | Area |
|---|---|---|
| UI / UX Designer, Project Manager, Customer Success | Native iOS app, native Android app, and Progressive Web App (PWA) — allowing kids and teens to access the app seamlessly on smartphones as well as on school Chromebooks and other devices. | UX/UI Design, Strategy, Project Management, Customer Success, Interaction Design |
About the project:
Värmdö Municipality needed a unified digital platform to communicate with young residents and their guardians. The goal was to centralize information about activities, events, and support services, while also enabling participation in local community initiatives.
Responsibilities
- Designed end-to-end UX/UI for a youth-focused communication app across mobile apps and a progressive web app (PWA).
- Defined information architecture and navigation for events, activities, and support resources.
- Designed mobile-first interface for iOS, Android, and PWA environments.
- Worked on CMS structure for municipality-managed content.
- Collaborated with stakeholders during planning and implementation.
- Supported project delivery and adoption as Project Manager and Customer Success lead.
Outcome
- Delivered a centralized communication platform for youth-focused information.
- Enabled the municipality to manage and publish content independently via CMS.
- Simplified navigation and content structure, making local events, activities, and support services easier to find.
- Provided a consistent digital channel for youth engagement across devices.
- Received positive feedback from stakeholders on usability and clarity.
Bookhub — Marketplace App and Style Guide
Bookhub is a marketplace app connecting authors and publishers with book designers and illustrators. The goal was to create a platform where users can discover creative talent, evaluate portfolios, and collaborate through a clear and structured experience.
| Role | Platform | Area |
|---|---|---|
| UI/UX Designer | iOS, Android | UX/UI Design, Branding, Visual Design, Style Guide Development, Mobile Optimization |
About the project
Bookhub was designed to support collaboration between authors, publishers, and creative professionals. The challenge was to create a marketplace experience that feels both inspiring and trustworthy, while maintaining visual consistency across a wide range of content and user types.
Responsibilities
- Designed end-to-end UX/UI for a two-sided marketplace (clients and creatives).
- Created user flows for browsing, filtering, and evaluating creative portfolios.
- Designed interface for profiles, listings, reviews, and discovery features.
- Developed a visual style guide to ensure consistent UI across the platform.
- Defined layout, spacing, typography, and component rules for scalability.
- Collaborated with developers during implementation to ensure design consistency.
Outcome
- Delivered a marketplace experience connecting authors with designers and illustrators.
- Established a scalable style guide to support consistent UI across the app.
- Improved clarity in browsing and evaluating creative profiles.
- Created a cohesive visual system balancing creativity and usability.
🏢 Brinova Fastigheter - Tentant App
Brinova Fastigheter AB, a real estate company in southern Sweden, needed a mobile app to improve communication with tenants and provide easy access to property-related information. The goal was to reduce reliance on manual inquiries by centralizing updates, documents, and service requests in a single digital platform.
| Role | Platform | Area |
|---|---|---|
| UI/UX Designer & Developer Coordination | IOS, Android | UI/UX Design, Interaction Design, Prototyping, User Testing |
About the project
The app was designed to simplify how tenants interact with property management. It centralizes key functions such as announcements, documents, and issue reporting, while ensuring clarity and ease of use across a wide range of user groups.
Responsibilities
- Designed end-to-end UX/UI for a tenant-facing mobile app.
- Created simple navigation structure prioritizing quick access to key features.
- Designed home screen with large, direct action buttons instead of traditional menu navigation.
- Designed issue reporting flow for maintenance requests (e.g. keys, heating, laundry systems).
- Structured content areas for news, documents, and tenant information.
- Worked with developers to ensure design implementation and consistency.
- Supported integration of an admin system for property managers to update content.
Outcome
- Improved access to important tenant information and property updates.
- Reduced manual inquiries and phone support to property managers.
- Enabled real-time content updates via admin system.
- Improved clarity and usability across a wide range of tenant user groups.
- Streamlined communication between tenants and property management.
- Enabled real-time notifications for important announcements and property updates.
- Positive feedback on simplicity and ease of use.
🛍️ NK Spirit – Internal Communication App & Web Platform
NK Spirit is an internal communication platform developed for Nordiska Kompaniet (NK), one of Sweden’s most iconic department stores. The solution included mobile apps and a web-based platform designed to improve communication, engagement, and information flow across multiple store locations and departments.
| Role | Platform | Area |
|---|---|---|
| UI/UX Designer & Developer Coordination | Native iOS app, Android app, Responsive Web App, Web-based CMS | UI/UX Design, Interaction Design, User Flows, Prototyping, Design System, Developer Handoff |
About the project
NK needed a modern internal communication system that could centralize company updates and improve engagement across a large employee network. The platform was designed to support personalized content, role-based communication, and consistent user experience across mobile and web environments.
Responsibilities
- Designed end-to-end UX/UI across mobile apps and responsive web platforms.
- Created user flows for personalized news feeds, internal updates, and employee engagement features.
- Designed scalable UI components and interaction patterns across iOS, Android, and web.
- Worked on structure and organization of role-based and location-based content.
- Collaborated with developers to ensure design consistency during implementation.
- Contributed to design system and cross-platform interface consistency.
Outcome
- Delivered a centralized internal communication platform used across NK.
- Improved visibility and distribution of internal news and company updates.
- Created a consistent user experience across mobile and web platforms.
- Supported personalized communication based on employee roles and locations.
- Received positive stakeholder feedback on usability and interface clarity.
🚆 Jernhusen – Internal Communication App & Depot Display Experience
Overview
Jernhusen AB is a Swedish state-owned company that owns and manages properties connected to the Swedish railway network. The company needed a modern internal communication solution to distribute updates across multiple regions and operational environments. I was responsible for designing the internal communication app and the depot display experience, focusing on clarity, usability, and fast access to important information in operational contexts.
| Role | Platform | Area |
|---|---|---|
| UI/UX Designer | IOS, Android, Web | UI Design, UX Design, User Flows, Prototyping, User Testing, Content Structure, Interaction Design |
About the project
Jernhusen needed to improve the visibility of internal information across multiple regions and environments. Important updates were previously distributed through bulletin boards and other local channels, making them easy to miss. The solution delivers information through mobile apps, web interfaces, and depot display screens to ensure consistent and visible communication across all locations.
Responsibilities
- Designed end-to-end user experience for internal communication across mobile, web, and depot environments.
- Created interface design for both interactive (app/web) and non-interactive (depot screens) contexts.
- Designed user flows for accessing news, announcements, and operational information.
- Structured content layouts for different screen types and usage contexts.
- Collaborated with developers during implementation to ensure design consistency across platforms.
- Designed UI components for modular content such as news, weather, and updates.
Jernhusen Nord app (mobile experience):
Jernhusen depot screen (physical operational display):
© Caroline Martins 2026