
UX/UI Designer Needed - Web & Mobile SaaS Platform
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- Proposals: 84
- Remote
- #4476756
- OPPORTUNITY
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Description
We are building a new UK-based digital platform and require an experienced UX/UI designer to create a complete design system and user experience specification.
This is not a brochure website.
It is a multi-user operational platform with dashboards, workflows, mobile usage and real-time interactions.
The platform architecture and functionality are already defined.
We now require a professional designer to create the visual system, UX structure and interface designs ready for development.
This will form the design foundation for both a web application and companion mobile app.
What We Need
We are looking for a designer who can create:
A complete design system and UX flows
Deliverables must be structured so they can be handed directly to developers for implementation.
This is full product UX/UI, not just branding or a homepage.
Scope of Work
1. Design System / Style Guide
Create a modern, clean, professional UI system suitable for a SaaS-style operational platform.
Must include:
Brand foundations
Colour palette
Typography system
Spacing/grid system
Iconography style
UI components
Buttons & UI states
Form inputs & validation
Status indicators
Cards and containers
Navigation elements
Notifications & alerts
Delivered as:
Figma design system (preferred), or
Structured PDF style guide
The output must be developer-ready and logically structured.
2. Core Screens to Design
We require key screens designed for a multi-user platform including:
Web application
User dashboard
Multi-step workflow screens
Data overview/history views
Messaging or interaction screens
Account/financial overview areas
Mobile app
Activity/feed style screens
Detail views
Action/response screens
Status update interfaces
Upload/input screens
Summary views
Admin/management interface
User management screens
Oversight dashboards
Review/decision screens
Exact functionality will be provided privately once engaged.
3. UX Flow Design (Important)
We need proper UX thinking — not just static screens.
Please design structured flows for core user journeys within the platform.
Each flow should include:
Clear step-by-step journey mapping
Success, error and loading states
Mobile + desktop considerations
Usability-first layout decisions
Deliverables
Final deliverables should include:
Full design system (atomic components)
Key platform screens
UX flow mapping
Mobile + desktop layouts
Figma file or organised PDF
Assets ready for developer handoff
Designs must be structured logically for implementation by developers.
Style Direction
We want:
Clean, modern SaaS interface
Professional and trustworthy feel
Clear usability for both desktop and mobile
Structured dashboards and workflows
Not overly gimmicky or overly “startup”
Think:
Modern SaaS dashboards
Clear operational interfaces
Data-led UI design
Simple, confident UX
Who We’re Looking For
Please apply only if you:
Have strong UX/product design experience
Have designed SaaS platforms or apps
Understand dashboards and workflows
Can design structured systems (not just visuals)
Can create developer-ready design systems
Bonus if you’ve worked on:
Multi-user platforms
Operational dashboards
Marketplace-style systems
Mobile + web companion apps
Budget (Assigned budget on job is a placeholder)
Open to proposals.
Likely suited to:
Fixed price project, or
Initial UX phase followed by further screen design
We are prioritising quality, clarity and real UX experience.
To Apply
Please include:
Portfolio (Figma or live links)
Examples of SaaS/dashboard/app UX work
Estimated cost
Estimated timeline
Any questions
Important
We already have:
Full platform specification
Defined functionality
Development architecture
We now require a designer to create the experience and interface that will guide production build.
This is a real platform project, not a concept design.
Jonny R.
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Log inClarification Board Ask a Question
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Hey Jonny, what does your availability look like next week for a quick call (a couple of time slots that suit)?
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➤➤➤Do you want full solution : Complete Web & Mobile SaaS Platform + full legal setup with approval + Tax-vat-quikbook + SMM setup
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Hey Jonny, To ensure the design system aligns perfectly with your platform’s complexity and user needs, here are five strategic questions:
Can you clarify the primary user roles and their permissions within the platform? This ensures the UX accurately reflects access levels, workflows, and data visibility across different user types.
How are real-time interactions currently handled in the architecture? Understanding this will shape how status indicators, notifications, and live data updates are designed for both web and mobile.
Are there existing user journey maps or workflow diagrams available for core processes? Access to these will allow me to design with precision, rather than reverse-engineering critical paths.
What front-end framework or tech stack will the development team use? Knowing this (e.g. React, Vue, Tailwind) ensures the Figma components map directly to implementable code and design tokens.
Do you have any accessibility or localization requirements (e.g. WCAG, multi-language support)? This ensures the design system is built to be inclusive and scalable from the start.
These questions ensure the design is not just visually strong but technically aligned, user-centered, and ready for seamless development.
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For multi-user platforms, friction usually comes from unclear roles or complex workflows. Are there any areas you’ve spotted that might confuse users or slow adoption? Addressing this early will make the platform much more intuitive.
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1) How many distinct user roles will the platform have, and do they each require a separate dashboard experience?
2) Is there an existing brand identity to design within, or does the visual direction need to be established as part of this project?
3) What is your ideal timeline for the first phase of deliverables, design system and initial screens? -

Jonny, are there specific core workflows or platform features that must be fully validated for both web and mobile first, so the design system and UX flows can be structured around them to ensure smooth implementation and real-time usability?
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Before confirming scope, I’d like to clarify:
• How many distinct user roles exist?
• Is real-time interaction (live updates, messaging) central or supportive?
• Will mobile be parity with web or a reduced companion?