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Senior Mobile Infrastructure Engineer



Other Engineering
Posted on Wednesday, May 15, 2024



SALARY: 21 000 - 31 000 PLN gross/monthly


The Senior Mobile Infrastructure Engineer is an exciting role at Brainly that allows you to contribute to our infrastructure and our product. Your primary team is our Mobile Infra team. You will be responsible for building and maintaining frameworks, automation, tooling, and infrastructure that help our product teams produce amazing mobile applications in Android and iOS using native or cross platform solutions like React Native, KMM or Flutter. When working with Mobile Infra, you will work on essential and well-defined projects that many engineering teams will use to help them build secure and scalable solutions for both mobile platforms Android and iOS. The Senior Mobile Infrastructure Engineer will also work with our product Android and iOS teams to deliver new and exciting products to our users. These “deployments” will last up to six months but can be as short as a sprint or two. Lastly, you will help design and participate in hackathons, conferences, and our new technology blog. This role is ideal for engineers who love new challenges and working across departments and teams and have knowledge about Android, iOS and cross platform solutions like React Native, KMM or Flutter.


  • Improve the developer experience

  • Embed and work directly with our product teams

  • Maintain our Mobile Infra KPIs and Dashboards

  • Be a major contributor to our future frameworks and automation

  • Have experience of cross platform solutions like React Native, KMM or Flutter.

  • Collaborate with other software engineers to create new tools and improve processes to deliver products and ensure high reliability and performance.

  • Conduct code reviews, contributing high-quality documentation, and building robust test suites for your features.


  • 4+ years of professional enterprise experience in Android or iOS apps development

  • Knowledge of Android or iOS platform (system libraries, lifecycle, good practices, tools)

  • Experience with Continuous Integration / Continuous deployment in Android or iOS

  • Ability to brainstorm and co-create new solutions, both business and technical

  • Experience in Unit/UI testing

  • Experience in releasing Android/iOS applications to Apple App Store/Google Play Store

  • Fluency in Kotlin / Swift

  • Experience with cross platform solutions like React Native, KMM or Flutter

  • Experience with Gradle / Cocoapods, Swift Package Manager

  • Interest in TDD and experience using testing to fix and refactor problems in legacy applications (smoke testing, integration testing, UI testing, end to end testing)

  • Experience with diagnosing technical problems, debugging complex problems across the whole stack, and automating routine tasks

  • Computer science fundamentals - data structures and design patterns

  • Familiarity with agile development and lean principles

  • Ability to evaluate technologies against technical and non-technical requirements

  • Focus on the needs of our users, both internal and external

  • Fluency in English

  • Team player attitude and clear communications skills

  • Analytical approach to solving complex problems, creativity to come up with original ideas and solutions

  • High level of self-organization and ability to make your own decisions

  • Great communications skills and ability to learn fast

  • Capability to help people and be proactive finding solutions


  • Experience with Fastlane, Firebase

  • Capability to identify problems and propose solutions

  • Knowledge of Objective-C

  • Knowledge of Python


  • We want to see you grow along with us – you will have 800$ per year for personal development, extra time for attending conferences and workshops, and unlimited access to an online learning platform (courses from Coursera, Udacity, Udemy, Harvard ManageMentor, Busuu, and many others!)

  • Health is important, which is why at Brainly, we fully cover private health & dental care packages for you and your family and provide you with a sport card (Multisport Plus

  • You will also get an access to online individual psychological consultations with professionals in English, Polish & Ukrainian via the Mental Health Helpline

  • Your personal concierge AskHenry will support you in your daily duties, eg. planning your dream vacation

  • You can join internal communities and contribute to charity, diversity and inclusion initiatives, take part in great internal events or represent Brainly at conferences or meet-ups

  • We also provide stock options

By sending us your application you agree that Brainly sp. z o.o. will process your personal data to participate in this recruitment process. If you want to know more about how Brainly processes your personal data please click here.


Brainly is the #1 AI education tool in the world, with a vision to give every student in the world access to personalized learning, no matter their background or resources.

Brainly’s full-service AI Learning Companion™ is relied upon by more than 15 million daily users; students, parents and teachers for personalized, on-demand academic assistance. The platform provides world-class homework help, test prep and tutoring that is verified for accuracy and customized to each student based on their learning style.

Founded in 2009, Brainly operates in the US, Europe, Asia and Latin America, and is backed by Prosus, Point Nine Capital, General Catalyst, Runa Capital, Learn Capital and Kulczyk Investments.

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