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Posted 23 July, 2026

Freelance UI Designer

Salt
London, ENG, GB Full Time

Job Description

Title: Freelance UI Designer, Mobile App RefreshStart: Monday 3rd AugustLength: 20 days, with potential to extendWork set-up: Hybrid, one day a week in the officeClient: Global telecoms brandContract: Outside IR35, Ltd or Umbrella only, no Sole TraderLocation: Paddington, LondonWorking days: Full-time, 5 days a weekCareer level: Midweight to SeniorRate: £500 a dayBriefA global telecoms brand is refreshing its mobile app and needs a freelance UI designer to help ship it. This is hands-on, production-focused work for a designer who has come up inside a mobile company and knows how app design really works. You will design new features inside an established Figma design system, roll them out on Android first, then make them responsive across other screen sizes. If you love clean, detailed, high-volume UI work on a brand people actually know, this one is for you.What you will be doingDesigning new features within an existing Figma design systemDesigning for Android first, then adapting responsively across screen sizesBuilding simple in-app motion and transitions as Lottie animationsWhat you needMust have worked at a mobile company, this is essentialProven mobile app design experienceHands-on Lottie. This is a must, not a nice to haveStrong design system and UI knowledge with a sharp eye for detailClient-side experience on telecoms brandsHappy in production mode rather than blue-sky creativeThis is a pure UI role. No UX.Outside IR35, £500 a day based in Paddington with one day a week in the office. Ltd or Umbrella only.*Rates depend on experience and client requirementsTPBN1_UKTJ