This is a rare opportunity to shape the user experience of a mission-critical SaaS product as it transitions from a legacy desktop application to a modern, browser-based platform.
You'll take an existing, functional prototype and turn it into a clear, intuitive, production-ready UX working closely with engineers who value good design, move quickly, and want your input early.
If you enjoy untangling complex workflows, reducing cognitive load for users, and designing for real operational environments (not just marketing websites), this project will keep you engaged.
What you'll be working on
The business is building a web-based "mailroom" application used by organisations such as councils, healthcare providers and enterprise teams to prepare, review and submit high-volume outbound communications across postal and digital channels.
You'll own UX across key workflows including:
* Uploading documents and creating "packs" (mailing jobs)
* Reviewing extracted data, letters and addresses
* Managing dense configuration, presets and permissions
* Designing extraction, zone selection and validation experiences
* Supporting long-running processes with clear progress states
* Balancing power-user capability with approachability for everyday users
The focus is on making something complex feel logical, calm and usable without oversimplifying what the product needs to do.
What you'll do
* Lead UX from discovery through to delivery for a production SaaS web app
* Define information architecture, navigation and terminology
* Map end-to-end user journeys and task flows
* Design wireframes and high-fidelity UI for complex states (draft, extracting, error, submitted)
* Work closely with developers to ensure designs are realistic, scalable and build-ready
* Create clear design specs covering states, validation, empty states and accessibility
* Help guide scope, MVP decisions and phased delivery
What you'll need
* Proven experience designing B2B or SaaS products (not just marketing sites)
* Strong UX thinking across workflows, systems and edge cases
* Confidence working with engineers in a highly collaborative, consultative way
* Ability to simplify dense configuration and operational interfaces
* Experience taking products from prototype to production
* Clear communication skills — this role succeeds on dialogue, not assumptions
Nice to have (but not essential):
* Familiarity with React-based design constraints or component libraries
* Experience designing for long-running or asynchronous system states
* Accessibility-first thinking (WCAG awareness)
Contract details
* Initial 3-6 month contract, with potential to extend
* Darling Harbour office location with hybrid working available
* Mid-Senior UX Designer level (not suited to junior profiles)
Why this will stand out on your portfolio
* Real users, real complexity, real constraints
* A product used at scale across enterprise environments
* Genuine influence over how the system works — not just how it looks
* A collaborative team that wants design input, not just execution
If this sounds like the kind of project where you do your best work, click Apply or get in touch for a confidential discussion.