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UX Designer

Job Description

UX Designer


Company Background

Marketing teams at some of the fastest-growing mobile apps worldwide use Appsumer’s unified ad reporting platform. They do so because we automatically unify their fragmented advertising data and provide them with exceptional ROI insights; insights they can use to make faster, smarter, more confident and more effective UA decisions to drive rapid growth for their business.

We’re a three-year-old SaaS business. We’re one to the UK’s top 100 start-ups. We’re winning industry awards. We’re working with brands like Supersolid, MyTaxi, Viber, Touchnote and Lovoo, and we’re growing rapidly. With significant funding secured we’re developing key new product features and investing to accelerate our demand and lead generation activity.

That’s where you come in. You’ll will work closely with the product manager and work collaboratively with our Engineering and our rapidly expanding Product Team. 



  • Constantly improving the user experience, looking for consistency and high quality throughout the products
  • Working heavily with engineering teams to understand what is possible and then provide design QA
  • Produce UX deliverables including user journeys, wireframes, and prototypes
  • Contribute to research activities and user testing
  • Rethinking how data heavy interfaces can be compelling, beautiful and meaningful
  • Share your own ideas and learnings within the team
  • Alongside the rest of our product team, run regular user testing sessions and research projects to get under the skin of our target audience and validate product decisions


  • 3+ years experience in product UX design: creating and shipping effective designs across B2B applications
  • You work in Sketch, Figma, Adobe XD, or Invision Studio
  • Experience of prototyping with Invision, Marvel or a similar tool.
  • An interest in or experience of prototyping with Framer or Principle
  • Experience of working in an agile environment
  • A passionate and strategic product thinker, with a critical eye for the details
  • A good listener, and enjoy creative problem solving
  • Ego-free, and actively want your ideas to be tested and validated
  • Able to build strong relationships across the business
  • Able to influence decision making by providing good rationale and evidence for your thinking
  • Experience working on big data, business intelligence or adtech applications is preferable but not a must.


  • Results-focused, with a ‘test and learn’ mentality and a can-do attitude
  • Willing and able to take responsibility
  • Organised with an attention to detail
  • A passion for data and marketing
  • Comfortable working under pressure in a fast-paced environment
  • An approachable, personable, communicative member of a team

Working at Appsumer

The team is just over 20-strong, but that will increase significantly before the year is out. With a couple of exceptions, we’re young; our CEO isn’t yet 30. We’re passionate about how we help our clients to improve and pride ourselves on our rates of client retention and referral. We have a strong product, positioned well in the market, and a solid plan for future growth in a mobile ad market that is growing rapidly. You’ll be expected to get stuck in during the week, and to down tools at 5pm on Friday to let your hair down. There’s much to do, much to learn and much to achieve…


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Life at Appsumer

We're all about crafting a motivating space for our team. Where you can be yourself, work hard and play hard.  When we're not collaboratively building a world class advertising product & business, you'll likely find us taking part in hot wing challenges, beer pong tournaments and office basket ball, or perhaps enjoying a couple of cold ones down the local pub. We're a sociable and humble bunch, are free of ego and ready to welcome the next like-minded member. Sounds like you? 

We've got a career with your name on it.

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