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Flutter Developer (Testora)

KyivPosted 21 Oct 2026

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About this role

About us: Gismart is a value-driven mobile app developer with a strong presence in the Health & Wellness, Utilities, and Music app markets. We have achieved a significant milestone of over 1 billion downloads worldwide, taking a step toward our mission of cultivating the well-being of people worldwide. With headquarters in London, UK, Gismart is a dynamic global company with a reach extending across Europe and far beyond.

Our determined team comprises over 400 individuals who bring diversity, creativity, innovation, and relentless drive to the company. Gismart unites professionals from diverse backgrounds in entertainment, music, and tech, allowing us to play to each other’s strengths and succeed as a team. Our mission: Become a stepping stone on our customers’ journeys of self-improvement. Our values: - Deliver what matters - Respect and support others - Initiate and own - Voiceopenly - Execute with quality If you are passionate about mobile app development and want to join a company that’s reshaping the industry, Gismart is the place for you.

We provide exciting career opportunities, a supportive workplace culture, and the chance to contribute to a team that is making a tangible impact. For more information on Gismart, visit gismart.com http://gismart.com. About project: Testora is a self-discovery app that helps users explore and analyze their personality, intelligence, relationships, and career strengths through engaging tests. The app offers personalized challenges, progress reports, and habit tracking, making Testora your go-to tool for self-awareness, stronger relationships, and personal growth.

Responsibilities - Develop cross-platform applications based on user needs. - Contribute product ideas, features, and improvements. - Research technical challenges and select an architecture that meets product requirements. - Troubleshoot and debug issues to ensure stable performance and a positive user experience. - Optimize application performance and memory usage. - Review code and provide feedback to maintain high code quality.

- Stay up to date with mobile development trends and technologies. - Participate in Agile processes, including planning, stand-ups, and retrospectives. Requirements - 5+ years of Android development experience and 3+ years of Flutter/Dart development for iOS and Android. - Strong knowledge of mobile architecture, Clean Architecture and scalability. - Experience with REST APIs and GraphQL. - Strong understanding of software design, testing, and maintenance.

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- Advanced knowledge of Kotlin Coroutines, Jetpack Compose, and multithreading. - Ability to work independently and collaboratively, prioritize tasks, and meet deadlines. WOULD BE A PLUS - Experience with Swift or Objective-C for native iOS modules in Flutter. - Experience creating custom views and conducting UI testing. - Familiarity with Git, GitHub, and Jira. Employee Benefits: - Remote-First Culture: Our team is diverse and extensive, just like our product portfolio.

We provide a flexible working schedule and let you work anywhere in the world, either remotely or in one of our corporate hubs - Сoworking Compensation: We provide 100% compensation for coworking spaces in Ukraine (except Kyiv, where we have a cozy and autonomous hub) and 50% compensation for coworking spaces worldwide to make sure that everyone has a comfortable and inspiring workspace - Free Office Lunches: We want you to stay fueled and focused, so we provide delicious free lunches for everyone working from our hubs.

It’s one less thing for you to worry about during a productive workday - Public Holidays Policy: Gismart observes public holidays based on the Ukrainian or Polish holiday calendars. Employees working in other locations are entitled to 12 public holidays per year - 100% Sick Leave Compensation - Mental and Physical Health: To help you stay happy and healthy, Gismart will partially cover your medical insurance, sports activities, therapy costs - Personal Equipment Policy: Of course, we’ll provide you with all the equipment you need or cover the maintenance cost for your own tools - Personal Learning and Development: We love to see you learn and grow, so Gismart will cover 70% of your professional development courses.

We’ll also pay for 100% of corporate English courses - Time-Off Policy: Every employee gets 18 working days of paid vacation and 3 personal days per year, with an extra day added for each year at Gismart - Corporate Events: We are remote-first, but we love meeting up in person. Whenever possible, we organize corporate events and team-building activities across all Gismart hubs

Source listing: ashby_gismart

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