Hire the top 3% of freelance Marvel app experts.

Toptal helps you hire the world’s best Marvel designers to build your app wireframes and prototypes. Top companies and start-ups choose Toptal Marvel app freelancers for their mission critical design projects.
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Majo Balko

Toptal Global Mentor
Majo is committed to mentoring new designers as a Toptal Global Mentor.
Global Mentor
Budapest, Hungary
Majo is an optimistic and life-curious multidisciplinary designer with a passion for turning ideas into memorable human-centered digital products. He specializes in visual, product, and user-experience design. He also enjoys branding and identity development and has experience in photo and video production.Click to continue

Umit Gokce

Seattle, United States
Umit is a digital product design specialist and experienced software entrepreneur who has consulted on over 125 UX/UI design projects for clients like Microsoft, Xbox, F5, AT&T, NTT, Motorola, Nike, and J&J. He is a noted subject matter expert in user-centered and data-driven design. Umit specializes in AI based human-centered chatbots for market intelligence and customer support. He is the creator of the Empathy-Driven Framework for Innovation.Click to continue

Jessica Testa

San Francisco, CA, United States
Jessica is a passionate designer and strategist with a knack for seeing the bigger picture. Using data and user research as the backbone of every design challenge, She has the ability to design fluid user experiences that deliver business results. Innovation and creativity are the driving factors in every design solution she delivers. Clients include Citrix, CNET, Symantec, PayPal, Logitech, Netflix, FreshChoice, and Trimble to name a few.Click to continue

Isabel Sousa

London, United Kingdom
Isabel is a designer with 9 years of experience specializing in UX and UI design. She enjoys working on platforms, websites, and app design for the desktop and mobile. Isabel enjoys thoroughly researching the market and competition and then designing the appropriate product. She's personable with a keen and comprehensive understanding of design and technology.Click to continue

James Karsberg

Bangkok, Thailand
James is a graphic designer from the UK with over 19 years experience working with some of the worlds leading brands and digital agencies. He is an expert in visual design, conceptual design work, creative direction, branding, graphic design, UI, and digital design. His wealth of commercial experience combined with a genuine passion for design results in beautiful strategic design solutions for his clients. Click to continue

Erin Stewart

Toptal Global Mentor
Erin is committed to mentoring new designers as a Toptal Global Mentor.
Global Mentor
Christiansted, Virgin Islands, U.S.
Erin is a user experience and product strategy leader who has led a variety of cross-device/responsive projects in Agile eCommerce, B2C, and B2B organizations. She is experienced working with dispersed teams for organizations ranging from pre-funding startups to large Fortune 500 organizations to create inspired and innovative products. She also enjoys helping build out new Agile product teams.Click to continue

Adrián Fuentes

Rennes, France
Adrian is an art director and UX designer with more than eight years of experience in the design industry. He is the co-founder of re-robot studio, one of the most renowned boutique agencies in Uruguay. He is also a skilled digital designer, focused on user experiences and visual identities.Click to continue

Asli Deniz Ozakar Kuyumcuoglu

Istanbul, Turkey
Asli is an accomplished user experience designer. Since completing her studies in industrial design and design for interaction, she has spent the past six years working on projects for high-level telecommunications, banking, eCommerce, online betting, and game development companies.Click to continue

Guilherme Rodrigues

Toptal Global Mentor
Guilherme is committed to mentoring new designers as a Toptal Global Mentor.
Global Mentor
Dubai, United Arab Emirates
Guilherme is a UX architect with over a decade of experience in delivering a great user experience for digital solutions. He likes to get involved with Agile, UX, digital marketing, and digital transformation projects. His latest challenge was to develop a proposal for the second generation of the Dubai Smartgate along with the UX team. The prototype is currently under testing and can be seen here: http://goo.gl/tp4m6nClick to continue

Bojan Janjanin

Toptal Global Mentor
Bojan is committed to mentoring new designers as a Toptal Global Mentor.
Global Mentor
Toptal Design Blog Author
Bojan's work has been published on the Toptal Design Blog. Check out Bojan's latest post.
Toptal Author
Zabok, Croatia
Bojan is a senior web designer and developer with 12 years of professional experience, specializing in usable web and mobile solutions. He has experience with a wide range of projects, tools, and techniques. He is proficient in UX design and front-end development.Click to continue
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