Вакансии Kotlin Developer

We’re looking for an experienced, highly motivated Android developer to join our team.
As an Android Developer, you will be responsible for design and development of Viber Android client. We offer many interesting and challenging tasks that will allow you to extend your technical abilities delivering the product of the highest quality to our users.
We are a global team of engineers dedicated to creating the best tools to ensure safe, convenient communication for millions of users worldwide. Our culture is built on innovation, teamwork, and a commitment to excellence.

Responsibilities:

• Participate in the development of the Viber client for Android, contributing to the enhancement and maintenance of existing features.
• Collaborate with a diverse team of developers to efficiently produce new features, complete proposed initiatives, and contribute to overall application improvements.
• Quickly grasp clients’ requirements, technology needs, and solution architecture to deliver high-quality solutions.
• Work closely with product managers, the design team, and others to develop appropriate solutions that align with user experience and design guidelines.

Requirements:

• 5+ years of commercial experience in Android application development;
• Strong proficiency in Java, Kotlin, and/or Android development;
• Solid understanding of Collections, Concurrency/Multithreading in Java, Coroutines/Flow, and experience with Android Jetpack components (WorkManager, Paging, ViewBinding, LiveData);
• Proficient in Dagger 2, multi-module projects, and Gradle for building and maintaining Android applications;
• Thorough understanding of mobile application design principles and UX;
• Experience with databases, including SQL, optimization and Room;
• Proficiency in writing unit tests and version control using Git;
• Familiarity with design patterns (GoF), architecture, and refactoring of applications;
• Experience in MVP/MVI/MVVM architecture-based development;
• Intermediate spoken level of English for effective communication within the team.

Advantages:

• Experience in Android custom views;
• Experience working with remote teams;
• B.Sc. in Computer Science or equivalent.

The CHI Software team is not standing still. We love our job and give it one hundred percent of us! Every new project is a challenge that we face successfully. The only thing that can stop us is... Wait, it’s nothing! The number of projects is growing, and with them, our team too. And now we need а Full-Stack Developer (React+Kotlin).

Responsibilities

• Develop, maintain, and improve frontend systems using TypeScript, React, and modern frontend technologies.
• Develop and optimize backend services with Spring Boot, Kotlin, PostgreSQL, and AWS, and related backend technologies.
• Maintain CI/CD pipelines and leverage IaC (Infrastructure as Code).
• Maintain and develop features across various systems while ensuring scalability and robustness.
• Collaborate with cross-functional teams, understanding requirements, and promoting knowledge sharing and collaboration.
• Make data-driven decisions to enhance system performance, optimize processes, and support business objectives.
• Own projects end-to-end, driving them from ideation to implementation and delivery.

Requirements

• 4+ years of experience with a strong focus on frontend development using TypeScript, React, and modern technologies.
• Proficiency in Kotlin, Spring Boot, PostgreSQL, and AWS for backend development.
• A solid understanding of testing principles and methodologies to ensure reliable, high-quality code.
• Familiarity with observability practices, monitoring, and alerting systems.
• Good knowledge of DNS, CDNs, and distributed systems.
• Understanding of accessibility (a11y) principles and best practices.
• Proficient in version control, especially with GitHub.
• Data-driven mindset with a focus on advocating for the best technical solutions.
• Self-driven with a strong sense of ownership and the ability to lead projects and drive them to completion.
• A collaborative team player with excellent communication and knowledge-sharing skills.

Our engineering team is looking for talents to build Android applications for start-ups in AI, healthcare, and fintech domains.
Well-established development practices and modern technology stack provide a great growth opportunity and a convenient working environment.

What you'll be working on:

• Build Android mobile apps using Java and Kotlin;
• Solve challenging tasks and develop smooth UX;
• Development of solutions from scratch according to the specification.

Experience that will help you to do the job:

• 3+ years of experience in Android development;
• Strong knowledge of Kotlin and Java programming languages;
• Experience with MVP/MVI/MVVM-like architectures;
• Comprehensive experience with core Android Framework API, AndroidX, RxJava.

Experience that will be a plus:

• Experience with CI/CD, Bitrise, App Center;
• Knowledge of serverless backends with Firebase or Supabase.

У команду найпопулярнішої української електронної пошти @UKR.NET шукаємо Android Developer-ів, які будуть працювати над розробленням мобільного застосунку пошти для Android-пристроїв.
Приєднуйтесь, якщо вас запалює розроблення цікавого, складного продукту та можливість впливати як на бізнес-логіку, так і на вибір архітектурних рішень.

Наш стек:

• Kotlin, Kotlin Coroutines;
• Dagger2, OkHttp;
• Android Jetpack: ViewModel, LiveData, WorkManager;
• Multithreading, Collections, Data structures;
• Android SDK;
• SQLite;
• Firebase - Google Analytic and Crashlytics.

Ми очікуємо, що у Вас:

• Досвід Android-розроблення з використанням Kotlin від 1 року.
• Досвід розроблення багатопотокових застосунків.
• Досвід використання SQLite.
• Розуміння принципів роботи з мережею. Знання та досвід роботи з HTTP.
• Алгоритмічна база. Вміння порівнювати алгоритми за ефективністю.
• Досвід роботи з Git.

Буде перевагою:

• Досвід роботи з чужим кодом (читання, рефакторинг).
• Досвід роботи із застосуванням Scrum, Kanban.
• Досвід застосування архітектурних патернів (MVP, MVVM, Clean Architecture тощо).
• Знання Java SE, Objective-C, C++.
• Розуміння принципів ООП, вміння вибудувати ієрархію класів і зв'язків між ними.
• Знання та досвід використання основних патернів OOD. Знання антипатернів.
• Знання основних форматів текстових даних (JSON, xml, тощо).