Hire Freelance Keychain Engineers
Sergei Sedov
Sergei has over seven years of experience in iOS app development (Objective-C and Swift) and more than a decade in J2EE. He also possesses a bachelor's degree in computer science and, in his career, has successfully led and communicated with QA and product teams. Sergei joined Toptal to find long-term iOS projects where he can develop products from scratch—building architecture that allows refactoring and unit testing.
Show MoreManuel Rico
Manuel has been developing mobile apps using different technologies for more than ten years. He is now focused on iOS native development with Swift and has architected and developed complex iOS apps from scratch used by thousands of people daily. Manuel has led teams and loves to work on thrilling new products, valuing simplicity, efficiency, and fluent communication throughout the team.
Show MoreStuart Jones
Stuart is a React Native developer with over a decade of experience building hybrid mobile applications for iOS and Android. He specializes in delivering apps across various industries at global organizations, scaleups, and startups while setting and achieving realistic deadlines. He launched a software development consultancy in 2018, advising and building mobile apps for companies such as Nando's and Perkbox. Stuart enjoys working on exciting React Native projects with international clients.
Show MoreIvan Voras, PhD
Ivan has a Computer Engineering PhD. He has worked as a CTO and a system architect, founding multiple projects and businesses. He has experience architecting and implementing server-side solutions, including distributed platforms, such as blockchains, chat servers, and game back-ends. He helped establish the Toptal blockchain specialization, served as a tech screener, and lectured for Toptal Academy.
Show MoreGorjan Shukov
Gorjan is an iOS lead developer with a demonstrated history working on computer software. This experience mainly consists of iOS development, Xcode, publishing to the App Store, continuous integration, Agile methodology, and Git. Gorjan believes that the keys to successfully working remotely with a client are exceptional availability/communication, professionalism, and positivity in the face of challenges.
Show MoreTiago Lopes
Tiago is a full-stack developer focusing on creating front-end apps using React, React Native, iOS Native, and Android Native. He has a proven experience working with companies of all dimensions, from early-stage startups to multi-billion dollar companies, and taking projects from planning to be used by millions of users. Tiago is experienced with continuous deployment pipelines using GitLab and Jenkins and has a vast knowledge of AWS infrastructure to deploy serverless applications.
Show MoreMichal Kalis
Michal is a senior iOS developer with 10+ years of experience in developing simple and complex applications. With users in mind, he not only produces lines of code but also adds a critical thinking element to UI and UX processes. Passionate about design, Michal is always keen to work on apps that have intrinsic user appeal.
Show MoreMate Lorincz
Along with a love for undertaking new challenges and learning, Mate is an enthusiastic iOS engineer with several years of professional experience—and successful projects—in software design and development. He always endeavors to provide quality code that is easy to understand and maintain. Mate loves to code in Swift in a way that ensures a fantastic user experience on iOS platforms.
Show MoreMananchai Rojamornkul
Mananchai is a software developer and engineering manager who has successfully formed and managed multiple teams of iOS, Android, back-end, and front-end engineers of all levels to develop world-class solutions for his clients. With over 7+ years of hands-on experience with iOS application development, Mananchai is confident in delivering scalable and maintainable iOS applications and frameworks of all scales.
Show MorePawel Hryczuk
Pawel has 14 years of experience in software development, mainly focusing on creating iOS apps. As a person, he is proactive, accountable, and knows the value of constant communication and teamwork, so whenever he encounters a problem, he tackles it head-on and devises a solution with his teammates. Pawel thrives in projects where he knows that he's delivering a high-quality product to his customers.
Show MoreJacek Szyja
Jacek is an experienced software engineer. During his career, he's had a chance to create projects for small startups and big global corporations. He gained experience in all project phases, from early project discussions and estimations through app development to releasing and analyzing results. Besides app development, Jacek is interested in mobile security.
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