Jobs

We’re looking for an experienced Lead Mobile Developer to take ownership of our mobile product development across Android and iOS platforms. This is a leadership role for someone who can architect, build, and guide the delivery of high-quality mobile applications while mentoring a small team of developers. If you have a passion for crafting exceptional mobile experiences and want to drive innovation across multiple platforms, we’d love to meet you!

Key Responsibilities:

• Lead the design, development, and deployment of mobile applications for Android and iOS.
• Define and implement mobile architecture, ensuring scalability, maintainability, and performance.
• Write clean, efficient, and well-documented code in Kotlin, Swift, and cross-platform frameworks (e.g., Flutter or React Native).
• Collaborate closely with designers, backend engineers, and product managers to deliver seamless user experiences.
• Conduct code reviews, mentor junior developers, and establish best engineering practices.
• Optimize app performance and ensure stability across diverse devices and OS versions.

• Stay ahead of emerging mobile technologies, frameworks, and industry trends.

   

Requirements:

• 5+ years of professional experience in mobile development with deep expertise in both Android (Kotlin/Java) and iOS (Swift/Objective-C).
• Proven experience in leading or mentoring development teams.
• Strong understanding of mobile app architecture (MVC, MVVM, Clean Architecture).
• Experience integrating RESTful APIs, GraphQL, and third-party SDKs.
• Proficiency with Git, CI/CD pipelines, and mobile testing frameworks.
• Solid understanding of UI/UX design principles and best practices.

• Upper-intermediate English for clear communication with global teams.

   

Nice-to-Have:

• Experience with cross-platform frameworks (Flutter, React Native).
• Familiarity with Firebase, AWS, or other cloud-based mobile services.
• Knowledge of App Store / Google Play deployment processes and automation tools.

• Background in performance optimization, analytics, and monitoring tools.

   

What We Offer:

• 💼 Competitive compensation and performance-based bonuses.
• 💻 Flexible remote work and results-driven culture.
• 🌱 Professional growth opportunities, leadership development, and access to modern tech stack.
• 🤝 Collaborative environment with talented engineers and creative teams.
• 🧩 Impactful work — shape the future of our mobile products and user experience.

We are seeking a Senior Android Developer with 5+ years of experience building high-performance, scalable mobile applications. You'll join a cross-functional team to develop user-friendly, secure, and stable Android apps used by thousands (or millions) of users.

Details: 
Experience: 5 years 
Schedule: Full time, remote 
Start: ASAP
English: Fluent
Employment: B2B Contract

Responsibilities:

• Design, develop, and maintain Android applications using Kotlin/Java
• Collaborate with UI/UX designers and backend teams
• Optimize app performance and handle app store submissions
• Write unit, integration, and UI tests
• Ensure security, scalability, and responsiveness

Requirements:

• 5+ years of Android development experience
• Strong in Kotlin and Java
• Experience with Jetpack components, MVVM, Coroutines, Room, Retrofit
• Proficient in Git and CI/CD tools
• Familiarity with Firebase, Android Studio, and performance profiling tools
• Experience publishing apps on Google Play Store

Are you an Android Developer with 3+ years of experience, ready for new opportunities?

Join the Octy Hiring Platform — this is not a traditional job opening, but a chance to become part of a professional network where your profile, skills, and experience are promoted to companies and startups worldwide.

Important: This is not a direct hire position. By joining Octy’s talent platform, you gain visibility with our global clients who actively use it to find and hire professionals.

​​

Required Skills

• Proficiency in Kotlin or Java for Android development
• 3+ years of experience building native Android applications
• Strong knowledge of Android SDK and core components (Activities, Fragments, Services, Broadcast Receivers)
• Experience with REST APIs and JSON parsing
• Knowledge of local data storage (Room, SQLite, or Realm)
• Familiarity with Git for version control

Nice to Have

• Experience publishing apps to Google Play
• Basic experience with CI/CD tools (Gradle, Jenkins, GitHub Actions, Bitrise)
• Familiarity with dependency injection frameworks (Dagger/Hilt, Koin)
• Understanding of reactive programming (RxJava, Kotlin Coroutines/Flow)
• Knowledge of app performance optimization and debugging tools (Android Profiler, LeakCanary)

What We Offer

• Opportunity to receive job proposals from our clients through the Octy Hiring Platform
• Creation of a professional candidate profile that highlights your skills and experience
• Access to our knowledge base to improve your expertise and increase your chances of being hired
• Technical support from our team
• Promotion of your profile to companies and startups worldwide

Hiring Process

1. Introductory call with a recruiter
2. Tech Q&A session
3. Product guidelines & test
4. Reference check (optional)

Once these stages are completed, your profile will be published on the platform. During the hiring process, a client interview may also be required.

Your next opportunity starts here — become part of the Octy Hiring Platform.

Hello!

We're looking for an Android developer who can thrive in a fast-paced environment, tackle complex tasks in Android development in the fintech area (POS applications), and has a passion for constant growth.

Responsibilities:

— Take charge of developing our products, implementing new ideas, and ensuring their quality;

— Design and build high-quality Android applications;

— Support existing applications;

— Collaborate with the team to define, design, and ship new features.

Requirements:
— 1+ years of experience;

— Experience in Kotlin, Java;
— Understanding Android framework, components, and their lifecycles;

— Knowledge of or Experience with Dagger 2, Koin, Retrofit, Coroutines, and other relevant solutions;

— Experience with Git;

— Strong problem-solving skills, ability to break down complex tasks, and design solutions to address them;
— Experience with Spring Boot is a plus;
— Result-oriented and high level of responsibility. 

At UpUp, we value proactivity and creativity, and we're committed to providing our team members with the resources they need to grow and succeed.
 

We look forward to hearing from you!

Our team is looking for a skilled Senior Android Developer with proven AOSP experience to work on a long-term project.

Project

The project is dedicated to the development, maintenance, and verification of next-generation smart glasses. The team is working on building innovative solutions based on the AOSP (Android Open Source Project), ensuring seamless functionality, stability, and performance of the device.

Responsibilities

• Drive the development of new features and key components for our Wearable team
• Integrate our software deeply with the Android Open Source Project (AOSP)
• Create essential tools, tests, and utilities to ensure high quality
• Continuously improve functionality and resolve bugs based on user feedback
• Adapt and port AOSP to new hardware platforms
• Be a key player in system bring-up, debugging, and performance optimization
• Focus on optimizing power consumption and memory usage for our embedded devices
• Collaborate with the team to maintain and verify the smart glasses software stack

Requirements

• 5+ years of experience in Android and/or embedded software development
• Strong knowledge of Linux Kernel and Android Open Source Project (AOSP) build systems (Soong, Make, and Bazel)
• Deep understanding of Android internals (Framework, HAL, RIL, and IMS)
• Proficiency in system debugging, performance optimization, and system bring-up
• Solid expertise in power and memory optimization
• Strong grasp of Android System Architecture: boot process, Binder IPC, Zygote, SELinux, and Verified Boot
• Proven experience in system-level optimization (boot time, memory, power) using tools like perf, ftrace, and D-Bus
• Fluent in English (written and spoken)

Would be a plus:

• Knowledge of Java, C, C++, and JavaScript
• Experience with Embedded Linux, Linux, and Windows
• Hands-on experience with Android Studio, Git, Gerrit, Jenkins, and Azure DevOps
• Understanding of Wi-Fi, and BLE technologies

Ukraine based product company from telecommunication area is looking for an experienced full time developer to help handle rapidly growing project. 
As a developer, you are going to work close together with product manager, designer and other developers and be responsible for supporting existing functionality as well as new feature implementation. 

 

Responsibilities

• Create and maintain new features and components for our mobile applications on Android using React Native.
• Work on improving the speed and stability of our applications.
• Work closely with UI/UX designers, fellow developers, and product managers to translate functional requirements into a reality.
• Adhere to coding standards, write clean, well-documented code, and participate in code reviews.
• Diagnose and resolve bugs and technical issues.

Requirements

• 3+ years of professional mobile development experience.
• Deep knowledge of React Native and the Android ecosystem.
• Experience with TypeScript/JavaScript (ES6+).
• Strong understanding of functional programming principles and design patterns.
• Experience working with APIs and networking libraries (e.g., Axios, Fetch).
• Proficiency with version control systems (Git).
• The ability to learn independently and solve complex technical challenges.

Nice to Have

• Experience with native modules (Java/Kotlin).
• Experience with automated testing tools (e.g., Jest, Mocha).
• Experience publishing applications to the Google Play Store.

We offer: 
- Full-time employment.
- Remote work. 

 Recruitment steps: 

1. Introduction Call: Overview of your experience and additional project details. 
2. Technical Call: Deep dive into skills and problem-solving approach. 
3. Final Decision: Offer discussion and next steps. 

Looking for exciting career opportunities as an Android Developer with 3+ years of experience?

Become part of the Octy Hiring Platform – an excellent way to passively search for projects with dedicated support from the Octy team. By joining, you'll have the opportunity to receive offers from clients around the world.

Please note: This opportunity is not for direct employment. Through Octy's talent network, your profile becomes visible to our client base who may use the platform for talent acquisition.

Required Skills

• Proficiency in Kotlin or Java for Android development
• 3+ years of experience building native Android applications
• Strong knowledge of Android SDK and core components (Activities, Fragments, Services, Broadcast Receivers)
• Experience with REST APIs and JSON parsing
• Knowledge of local data storage (Room, SQLite, or Realm)
• Familiarity with Git for version control

Nice to Have

• Experience publishing apps to Google Play
• Basic experience with CI/CD tools (Gradle, Jenkins, GitHub Actions, Bitrise)
• Familiarity with dependency injection frameworks (Dagger/Hilt, Koin)
• Understanding of reactive programming (RxJava, Kotlin Coroutines/Flow)
• Knowledge of app performance optimization and debugging tools (Android Profiler, LeakCanary)
• Familiarity with AI-powered development tools and code assistance platforms

What We Offer

• Opportunity to receive job proposals from our clients through the Octy Hiring Platform
• Creation of a professional candidate profile that highlights your skills and experience
• Access to our knowledge base to improve your expertise and increase your chances of being hired
• English courses with native speaker provided at no cost to improve your professional communication
• Сoverage of AI tool expenses to enhance your development workflow and efficiency
• Technical support from our team
• Promotion of your profile to companies and startups worldwide

Hiring Process

1. Introductory call with a recruiter
2. Tech Q&A session
3. Product guidelines & test
4. Reference check (optional)

Once these stages are completed, your profile will be published on the platform. During the hiring process, a client interview may also be required.

Take the next step in your career journey – join the Octy Hiring Platform today.

• Min 4 years of proven experience in native Android development.
• Strong OOD/OOP skills, along with a deep understanding of SOLID principles.
• Good understanding of application life cycle and components like Activity/Fragment/Service.
• Hands-on experience in MVVM, MVI architectural patterns.
• Strong knowledge of Kotlin, Live data, Data binding, Kotlin coroutines, Dependency injection principles, jetpack compose UI.
• Experience with Bluetooth technology, familiarity with Bluetooth Low Energy (BLE) and Android Bluetooth APIs.
• Proficient understanding of code versioning tools, such as Bitbucket, Git.
• Knowledge of the general mobile landscape, architectures, trends, and emerging technologies.
• Live Android application on Google Play store is preferred.

About Us

We’re an ambitious, well-funded venture building a revolutionary Non-Custodial KYC-ed MPC (Multi-Party Computation) Wallet. We abstract away blockchain complexity so users get a product that feels like the best of modern fintech—with the freedom and privacy of crypto.

We’re assembling a small, exceptional team to design the future of personal finance.

Location: Remote

What you’ll do

• Lead architecture and development of the Android app in Kotlin with strong Web3 capabilities.
  
   
• Implement secure key management, transaction signing, and robust multi-chain integrations.
  
   
• Collaborate on highly secure APIs for the MPC wallet.
  
   
• Guarantee performance, reliability, and security.
  
   
• A keen eye for detail and a passion for creating exceptional user experiences.
  
   

What we’re looking for

• 5+ years of native Android experience with complex apps in Google Play.
  
   
• Hands-on Web3 on Android: wallet creation, transactions, chain integrations.
  
   
• Expert in Kotlin and Jetpack Compose with modern Android practices.
  
   
• Comprehensive mobile security expertise for financial/crypto contexts.
  
   
• A keen eye for detail and a passion for creating exceptional user experiences.

Android Developer (Middle) – Next Era Solutions
📍 Remote | Part-Time (20–40 hours/month)

About Next Era Solutions

Next Era Solutions is a team of experienced mobile developers with over 7 years of expertise in delivering complex projects on time and within budget. We focus on creating high-performing, user-friendly mobile applications tailored to our clients’ unique needs, using modern technologies and best practices.

What You’ll Do

• Develop and maintain Android mobile applications using Kotlin and Jetpack Compose
• Design and implement new features, optimize and refactor existing code
• Architect applications following MVVM and MVP patterns
• Create custom UI components and animations using Canvas, MotionLayout, and Android Animations API
• Integrate with RESTful APIs and GraphQL services
• Write unit tests and participate in code reviews
• Collaborate with designers, managers, and other developers
• Communicate with clients to clarify requirements when needed

Our Tech Stack & Tools

• Language: Kotlin (Android SDK, Jetpack Compose, Coroutines, Flow)
• Frameworks: Room, ViewBinding/DataBinding, Jetpack Components
• Testing: JUnit, Espresso, Snapshot testing (where applicable)
• Architecture: MVVM, MVP, SOLID, Clean Architecture
• Tools: Git, RESTful API, GraphQL
• UI/UX: Custom components, animations, strong understanding of Material Design Guidelines

What We’re Looking For

• 2+ years of commercial Android development experience
• Strong knowledge of Kotlin, Android SDK, and modern Jetpack libraries
• Experience creating and publishing apps to Google Play
• Understanding of architectural patterns (MVVM, MVP) and SOLID principles
• Experience working with RESTful APIs and GraphQL
• Familiarity with unit and UI testing tools (JUnit, Espresso)
• Ability to work independently and as part of a team
• Attention to detail and problem-solving skills
• English proficiency at Intermediate (B1) level or higher for documentation and communication

Nice to Have

• Experience with E-commerce, messengers, or other complex applications
• Skills in animations and advanced UI solutions with Jetpack Compose or MotionLayout
• Experience in direct client communication

What We Offer

💰 Hourly payment (no time tracker), part-time workload (average 20–40 hours/month)
📈 Opportunities for professional and career growth
🏡 Fully remote work and flexible hours
💪 Supportive team and knowledge sharing
🔥 Modern tech stack and interesting projects

We are looking for a skilled Android Developer to join our team for part-time collaboration or per-project involvement. You will work on innovative solutions within the Internet of Things (IoT) domain, including Smart Home, Smart City, and a range of other intelligent automation systems.

Requirements
— 3+ years of commercial mobile development experience
— Strong knowledge of Java and/or Kotlin
— Proficiency with Android SDK
— Solid understanding of Bluetooth SDK and BLE
— Experience integrating with backend services via APIs
— Familiarity with Jetpack
— Experience with SQL / SQLite databases
 

Nice to Have
— Experience with Material Design
— Skills in UI/UX implementation
 

Responsibilities
— Develop and maintain Android applications for BLE and IoT-enabled devices
— Integrate mobile apps with Bluetooth peripherals and backend services
— Collaborate with cross-functional teams to design scalable solutions
— Optimize app performance and ensure code quality
— Participate in feature planning and propose technical improvements
 

We Offer
— Flexible engagement formats — part-time or per-project
— Opportunity to work on cutting-edge IoT solutions
— A collaborative and innovative environment
— Long-term potential for growth and ongoing involvement
— Competitive compensation based on experience and project scope

Send us your CV and let’s talk!

QA Madness is a European IT service company that focuses strongly on QA and cybersecurity. The company was founded in 2013 and is headquartered in Poland.

Our client is looking for a Mobile Developer for the tipping platform.
Must have good communication skills in English.

Work type: Remote.

Technical level: Senior.

Job category: Development.

Project: Tipping and gratuities system.

English level: Upper-Intermediate.

Responsibilities:

— Build and deliver robust Android solutions for payment applications;

— Implement scalable features based on product roadmap and team input;

— Work closely with product managers, designers, QA, and backend developers;

— Contribute to architectural decisions and continuously refactor to maintain clean codebases;

— Ensure code quality through comprehensive testing and active participation in code reviews;

— Monitor app performance and take steps to address issues proactively;

— Participate in agile processes and help evolve development workflows.

Required Skills:

— 5+ years of hands-on experience in Java;
— Building and maintaining Android applications (experience with IOS applications will be a plus);

— Basic knowledge of Typescript, JS and React Native;

— Understanding and experience in MVP and MVVM;

— Experienced with well-known development and testing frameworks;

— Experience building service-oriented architectures, design patterns, data structures;

— Test-driven development and continuous delivery;

— Upper-intermediate level of spoken and written English.

What We Offer:

— Competitive salary in USD or EUR and good compensation package (reviews on demand to ensure your compensation reflects your growth and impact);

— Corporate English courses with native speakers;

— Remote work opportunity;

— Flexible work schedule (Enjoy the freedom to start your 8-hour workday at a time that fits your schedule best, anytime between 8 a.m. and 11 a.m.);

— The ability to focus on your work: a lack of bureaucracy and micromanagement (no tracking tools).

Steps of the interview process:

STEP 1: Send your resume and complete the questionnaire.

STEP 2: Go through the screening interview with a Tech Recruiter.

STEP 3: Interview with a client.
STEP 4. Test Task.

 

Please note, this job is a full-time position, and it is relevant only if you meet all requirements. Any candidate who fails to meet the requirements will not be considered for the job.

*I give consent to the processing of my personal data uploaded via the form under the terms and conditions of QA Madness Privacy Policy (Processing of Candidates Personal Data).

Required skills:

• Сommercial experience in Android development;
• experience in implementing Material Design and well designed UI;
• advanced knowledge Kotlin skills;
• experience with web service technologies (REST, JSON, XML);
• knowledge of RxJava/Coroutines, MVP, MVVM, Dagger 2, Databinding;
• solid understanding of OOP principles;
• experience with SQLite, Room, Real;
• experience with REST, GraphQL, Web socket;
• technical English.

Responsibilities:

• Develop mobile applications for Android;
• interact with team members on the project;
• study new technologies, adapt to changing trends.
 

Will be a plus:

• Knowledge С++;
• knowledge of Clean Architecture;
• understanding of Android architecture components;
• understanding of the full mobile development life cycle.
 

We offer:

• Flexible working hours (8—10:30AM start);
• pleasant working atmosphere;
• opportunities for self-development, professional and career growth;
• professional seminars and training;
• payment for the in-office English language courses;
• corporate parties and various professional events with the team.
 

About the project:

Do you want to work in a friendly and creative atmosphere? To grow as a professional and develop new skills?
So, we are welcome you to be a part of our team!
Our slogan: “Developing yourself — developing our company”.
VRG Soft is a team in which everyone is ready to help each other, and the opinion of each employee is always considered.
We will be glad to get to know you and tell a lot more about us!

Lemberg Solutions is, above all, a group of passionate professionals led by a core team that have been meticulously selected over the last 15 years. We are based in Lviv, Rivne, and Lutsk, and opened GmbH in Hamburg, Germany.

At LS, people come first. We know that our success is based on our people’s achievements. Each and every one of our 200 team members is highly valued for their hard work, and we’re always excited to welcome new specialists ready to embrace challenges with us.

Pay attention: only those candidates who meet the listed requirements will receive an answer!
 

Necessary skills and qualifications:

• 3+ years of experience with Kotlin;
• Practical experience with the Android SDK;
• Strong knowledge of Kotlin coroutines;
• Deep knowledge of OOP/SOLID;
• Profound understanding of design patterns, OOD;
• Understanding of Clean Architecture;
• Experience with MVVM;
• Understanding of Android UI principles, creating custom UI elements, UI animation techniques, and creating interactive UX on Android;
• Knowledge of Jetpack Compose; 
• Experience with integrating third-party libraries;
• Familiarity with SQLite, Room; 
• Practical experience with web service technologies (REST, JSON);
• Experience with unit testing;
• Acquaintance with source-code repositories, GIT;
• Strong soft skills and proven experience in direct communication with a client;

• At least an Upper-Intermediate level of English

   

Will be a plus:

• General understanding of Java and multithreading techniques;
• Knowledge of reactive programming;
• Experience with dependency injection frameworks (Hilt or Koin);

What we offer:

Time Off 

• 21 days paid annual leave 
• Unlimited sick leaves with a medical statement 
• 30 working days off for personal reasons without compensation 
• 5 days additional paid time off following your wedding or your child’s birth
• Paid public holidays

Workplace Benefits

• Free English classes in groups
• Flexible work schedule
• Fully equipped workstation
• Comfortable office
• Access to a video library of soft skill workshops

Financial Benefits

• Relocation support program
• Financial support from LS in case of emergency (reviewed individually)
• Overtime pay
• In-house accounting service

Fun

• Lviv IT Cluster gifts & discounts 
• Team building & industry events
   

About the project:
A US-based client delivers an enterprise IoT fleet management platform for transportation and logistics. Lemberg Solutions engineers build, test, and support the client’s Android platform and backend, including a variety of Android apps for both drivers and back-office staff.

We are looking for 1 month contract for Android Senior Developer to port existing iOS application (4 screens) to Android.

Includes work with external libraries, face recognition, NFC, SmartCards.

Required: good communication skills, responsibility.

Nice to have: iOS development skills to support iOS version as well