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Java
Kotlin
Android
Architecture Components
Cicerone
Data binding
Glide
Google Play services
Koin
Kotlin Coroutines
OSMdroid
Retrofit
Retrofit2
Room (Android Jetpack)
okHttp
RxJava2
Firebase
Google Services
Atlassian Confluence
Jira
BitBucket
Git
Clean Architecture
MVVM
SOLID
Firebase
HTTP
HTTPS
MVP
Postman
RESTful API
Retrofit
Swagger
...

- Experienced Android Engineer with 6+ years in Java and Kotlin app development. - Proficient in Android development frameworks like Retrofit and Room (Android Jetpack). - Expertise in Clean Architecture, SOLID, MVVM principles, REST API, and HTTP. - Skilled in project management using Atlassian JIRA, Confluence, and Agile methodologies. - Upper intermediate English - Available ASAP

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Seniority Middle (3-5 years)
Location Rivne, Ukraine
Android 6yr.
Java
Kotlin
Android Jetpack
ButterKnife
Crashlytics
Dagger
DataBinding
Glide
Gson
Hilt
Koin
OSMdroid
Retrofit
Room (Android Jetpack)
ViewBinding
Dagger
JSON
Jsoup
okHttp
Firebase
ObjectBox
SQLite
Firebase Cloud Messaging
Google Cloud Messaging
Android Jetpack
BitBucket
Git
GitLab
SVN
Clean Architecture
MVC (Model-view-controller pattern)
MVVM
SOLID
Firebase
Google Maps API
RESTful API
Retrofit
MVP
WebSockets
...

- Senior Android Engineer with 6+ years of commercial experience and strong organizational skills. - Proficient in Android development using Java, Kotlin, and libraries like Retrofit and Room. - Expert in methodologies like MVC, MVVM, Clean Architecture, and SOLID principles. - Comfortable working with REST API, version control tools like Git, and project management through MVP. - Upper-Intermediate English - Available ASAP

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Seniority Senior (5-10 years)
Location Ukraine
Android 7yr.
Android SDK 7yr.
Java 7yr.
Kotlin 7yr.
Cicerone 7yr.
Crashlytics 7yr.
Dagger 7yr.
Hilt 7yr.
Mockito 7yr.
Retrofit 7yr.
Room (Android Jetpack) 7yr.
Dagger 7yr.
RxJava 7yr.
Realm 7yr.
Firebase Cloud Messaging 7yr.
Atlassian Trello 7yr.
Jira 7yr.
Clean Architecture 7yr.
Kanban 7yr.
MVVM 7yr.
Waterfall 7yr.
Google Maps API 7yr.
Retrofit 7yr.
Linux 7yr.
Windows 7yr.
Mockito 7yr.
WebSockets 7yr.
Firebase Analytics 7yr.
Navigation 7yr.
Jetpack Compose 1yr.
Architecture Components
Dagger2
Data binding
DataBinding
Glide
Gson
Kotlin Coroutines
leakcanary
Dagger2
RxJava2
Firebase
BitBucket
Git
MVC (Model-view-controller pattern)
Scrum
Facebook API
Facebook SDK
Facebook SDK
Figma
Firebase
MVP
Sentry
sockets
Applanga
Cicerone navigation
PlacesSDK
Protobuf
...

- Over 7 years of commercial experience in IT as an Android Developer; - Proficient in Java and Kotlin programming languages; - Strong knowledge of Object-Oriented Programming (OOP) principles; - Experienced in using Design patterns such as MVP and MVVM; - Skilled in using Android SDK and various libraries/frameworks including RxJava, Jetpack Compose, Dagger, Hilt, Room, Navigation, Google Maps, Firebase Analytics, Firebase Crashlytics, and Firebase Cloud Messaging; - Familiar with Clean Architecture and Retrofit for building robust and scalable applications; - Proficient in using source control systems like GIT and tracking systems like Jira and Trello; - Experienced in Agile development methodologies such as SCRUM and Kanban; - Upper-Intermediate level of spoken and written English; - Successfully delivered projects in various domains including in-store and online shopping, retail and distribution, taxi services, sports, and job search; - Strong attention to detail, logical thinking, and result-oriented mindset.

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Seniority Senior (5-10 years)
Location Germany
Java
Kotlin
Android Jetpack
Android SDK
Android Studio
Glide
Retrofit
Room (Android Jetpack)
Java Core
JSON
Material UI
Firebase
SQLite
Android
Firebase
Android Jetpack
Android SDK
Android Studio
Android SDK
Collections API
RESTful API
Retrofit
Git
MVP
OOP
UI/UX
Multi-threading
...

- Android Engineer (6 months) - Educational program (mentoring, code review, git-flow, task management, time management) - Android Fundamental Courses - Available ASAP

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Seniority Junior (1-2 years)
Location Kharkiv, Ukraine
Android
Kotlin
Java
CameraX
Dagger2
DataBinding
Hilt
Jetpack Compose
Koin
Kotlin Coroutines
LiveData
Moshi
Retrofit
Room (Android Jetpack)
Dagger2
RxJava
Firebase
GreenDao
Realm
Clean Architecture
MVVM
Facebook API
Google API
GraphQL
Kotlin Flow
Retrofit
Firebase
Gradle
Linux
macOS
Windows
MVP
Postman
WebRTC
XMPP
Box2D
Multithreading
MVI (Model-View-Intent)
...

- 7+ years of commercial experience in IT - Experience in developing applications using Java, Kotlin - Excellent knowledge in OOP - Experience in using Design patterns (MVP, MVVM) - Experience in using SQLite - Good logical thinking, hard-working, self-learning, result oriented - Good attention to details. - Upper-Intermediate English - Availability starting from 01/08/2023

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Seniority Senior (5-10 years)
Location Lviv, Ukraine
Android 7yr.
Flutter 3yr.
Java
Kotlin
Dart
Android Studio
Retrofit
Canvas
okHttp
RxJava
Moor
SQL
Adobe Photoshop
Adobe XD
Figma
Android Studio
Atlassian Confluence
Atlassian Trello
Jira
Charles Proxy
Mantis
Postman
Zeplin
Git
iOS
Linux
macOS
Windows
Kanban
Scrum
Mantis
MQQT
RESTful API
Retrofit
WebSockets
AdvancedRecyclerView
Android Bluetooth
Android Reflection
ApkTools
CustomClipper
Custom View
CustomView
DotDivider
Facebook Auth
FilePicker
FlutterIcon
FlutterSvg
GoogleSignIn
JodaTime
MatLog
MPAndroidChart
NotepadQQ
Nucleus
PinEntryTextField
SharedPreferences
ShowcaseView
UrlLauncher
WebView
...

- 16 years of experience in IT. 3 years of experience as a Flutter Developer. - He has experience in developing applications from scratch using the Flutter framework. - Intermediate English - Available ASAP

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Seniority Middle (3-5 years)
Location Poland
Flutter
Dart
C#
JavaScript
Android SDK
Android Studio
Retrofit
CSS
HTML
React
Firebase
Microsoft SQL Server
PostgreSQL
Android SDK
Google API
RESTful API
Retrofit
Android SDK
Android Studio
Flutter SDK
Microsoft Visual Studio Code
XCode
Atlassian Trello
Jira
Firebase
Git
SOLID
...

- 2+ years of experience developing mobile apps with Flutter - Participated in projects full-cycle development from scratch - Has experience with native Android/iOS SDKs - Has basic experience with JS, React - Intermediate English - Available ASAP

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Seniority Middle (3-5 years)
Location Ukraine
Android
Java
Kotlin
Android SDK
Android Studio
Crashlytics
Dagger
Jetpack Compose
Kotlin Coroutines
Retrofit
Room (Android Jetpack)
Dagger
okHttp
RxJava
Spring
Kibana
Firebase
Agile
Design patterns
SOLID
Android SDK
API
GraphQL
Retrofit
Swagger
Android SDK
Android Studio
JetPack
Atlassian Confluence
Jira
Miro
Slack
BitBucket
Git
GitLab
Charles Proxy
JUnit
NUnit
Postman
Citrix
Firebase
Figma
InVision
UX
iOS
Product Management
Sonarqube
...

- As an accomplished Android Engineer with six years of experience, I have a proven track record of developing high-quality Android applications. My passion lies in diving deep into the core development of a project and leaving my technical mark. I am eager to keep pace with the rapidly changing mobile world, and I embrace challenges with enthusiasm - My journey as a Software Engineer began during high school, and I have continued to grow and develop my skills ever since. I am dedicated to working hard and driving innovation in all of my projects. I am also a personable and friendly team player, and I thrive on the opportunity to collaborate with others and meet new people - Overall, I am committed to delivering exceptional results and making a positive impact on any project I work on - Upper-Intermediate English

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Seniority Senior (5-10 years)
Location Ukraine
Java 15yr.
Flutter 5yr.
Kotlin 5yr.
Android APIs 15yr.
Android APIs 15yr.
Retrofit 5yr.
RxJava2 5yr.
Node.js 5yr.
SQLite 5yr.
OpenCV 5yr.
Retrofit 5yr.
iOS 5yr.
Facebook Auth 4yr.
Jenkins 3yr.
Python 2yr.
Android NDK 2yr.
WPF 2yr.
Realm 2yr.
AWS 2yr.
Winforms 2yr.
Microsoft Visual Studio Code 2yr.
Qt Creator 2yr.
MVP 2yr.
PySide 2yr.
Objective-C 1yr.
React Native 1yr.
Blackberry SDK 1yr.
Blackberry SDK 1yr.
Eclipse 1yr.
Unity 1yr.
libGDX 1yr.
Unreal Engine 1yr.
active admin
BLE
JSON
Mobx
Dropbox API
BitBucket
Ffmpeg
H.263
H.264/AVC
JBoss
OneDrive
RTP
RTSP
...

- Mobile software developer with over 15 years of extensive experience in designing, architecting, and developing mobile applications for Android and iOS platforms using Flutter, Kotlin, Java, and React Native. - Skilled in Clean Architecture, cross-platform solutions, and native development. - Proven track record of leading mobile development teams for fintech, investment, and subscription-based platforms. - Expertise in overseeing end-to-end project execution, including architecture design, feature implementation, testing, and delivery. - Proficient in building SDKs for hardware sensors, smartwatches, and other devices, with capabilities such as BLE communication, data parsing, OpenCV integration, and real-time data synchronization. - Specialized in developing healthcare and assistive communication applications with features like speech-to-text, word prediction, handwriting recognition, and customizable UI/UX for individuals with disabilities. - Experience in building interactive games for Android devices and smartwatches using frameworks like libGDX and AndEngine, with added functionality for integrating external sensors. - Strong expertise in optimizing application UI/UX, working with images and video streams, and enhancing application performance through efficient coding practices. - Skilled in integrating cloud services (AWS, Dropbox API, Parse) and building backend solutions for data storage, synchronization, and real-time updates. - Hands-on experience in implementing automated testing, improving code quality, and ensuring seamless application performance across devices.

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Seniority Expert (10+ years)
Location Poland

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Maria Lapko
Global Partnership Manager
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Hire Retrofit Developer: Expert Android Solutions

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For businesses looking to boost their Android apps, hiring a Retrofit developer is key. Retrofit makes HTTP requests in apps better, making them more user-friendly. It helps companies use advanced RESTful services and JSON parsing.

This reduces the need for a lot of extra code. It keeps apps up-to-date in a fast-changing digital world. Count on our skilled Retrofit programmers for top-notch Android app development.

Why You Need a Retrofit Developer for Your Android App

A Retrofit developer is key for making top-notch Android apps. They focus on fast network operations and a great user experience. With Retrofit implementation, they use smart HTTP clients for quicker app performance and smoother interfaces.

This is very important for apps that need to update data fast and talk to servers without problems.

By focusing on enhanced app functionality, a Retrofit developer makes API management better. This leads to faster app operations and better data handling. It makes the app more responsive and gives users a smooth experience.

Also, a good Retrofit implementation makes the mobile app user experience better. It allows for quicker data and more accurate displays. This makes the app feel natural and safe to use.

In short, getting a Retrofit developer turns your Android app into a fast, reliable, and friendly tool. This leads to better app performance and keeps users coming back.

Key Benefits of Hiring a Retrofit Developer

Hiring a Retrofit developer brings big wins for your Android apps. Their skills make your app work better and feel more user-friendly.

Improved Networking Performance

One big plus is better networking. Retrofit’s tools help cut down on wait times. This means your app loads faster and works smoother.

This is key to keeping users happy and coming back.

Efficient API Integration

Retrofit pros are great at linking APIs. They make sure your app talks well with web services. This is important for apps that need to update fast.

Reliable Data Handling

Retrofit developers are also top-notch at handling data. They keep your app’s data safe and sound. This makes your app’s backend strong and reliable.

BenefitDescription
Improved Networking PerformanceReduction in network latency ensures fast data transactions and smooth application operations.
Efficient API IntegrationSeamless integration with various web services ensures robust and dynamic app connectivity.
Reliable Data HandlingEnsures data integrity and security, managing different data types efficiently and securely.

Our Retrofit Development Services

Our Retrofit development services are made to fit your business goals perfectly. We offer full mobile development services for many industries. This is to meet their specific needs.

Customized Solutions

We know every business is different. That’s why we focus on Retrofit custom solutions. Our team creates special setups that fit right into your apps. This way, every solution works well and can grow with your business.

Seamless Integration with Existing Systems

Smooth system integration is key for us. Our Retrofit developers add new stuff without messing up your system. This keeps your apps strong and adds value to your business.

Service FeaturesBenefits
Customized Retrofit SolutionsTailored to fit unique business needs, scalable and efficient.
Seamless System IntegrationEnsures uninterrupted business operations and enhanced functionality.
Expert Mobile Development ServicesComprehensive development solutions for various industries.

How to Hire a Retrofit Developer with Upstaff

At Upstaff, we know how crucial it is to find the right talent. Our hiring process makes sure you get a Retrofit developer who fits your project and company perfectly. Here’s how it works:

  1. Requirement Gathering: We first learn about your project needs and goals. This includes the technical skills needed, project timelines, and other important details.
  2. Skills Matching: We carefully check candidates to make sure they match your needs. We look for top Retrofit developers with great networking and API skills.
  3. Interview Coordination: We make the interview process easy for you. You get to talk to our vetted developers. This lets you see if they’re a good fit for your team.
  4. Onboarding: After you pick the right candidate, we help with the onboarding. We make sure they fit in well with your team.

Our hiring process is designed to help you find a Retrofit developer and build a lasting partnership. Working with Upstaff means you get clear, efficient service and access to top Retrofit developers.

What Makes Our Retrofit Developers Stand Out

Our team of Retrofit developers is top-notch. They know a lot about Android app development. They also focus a lot on their clients.

Expertise in Android Development

Our developers are experts in Android. They keep up with new tech and best ways to do things. This means your app will work well and be easy to use.

Proven Track Record

We’re proud of our success in making apps. Our team has made many apps that clients love. Their hard work and skill show in every project.

Client-Centric Approach

We listen to our clients and make apps just for them. We make sure the app fits what you need. This way, working with us is easy and good.

Developer AttributeBenefits
Expertise in Android DevelopmentAccess to cutting-edge technologies and best practices
Proven Track RecordConsistent delivery of high-quality applications
Client-Centric ApproachCustomized solutions tailored to client needs

Industries Benefiting from Retrofit Development

Today, many Retrofit application sectors are seeing big wins with Android solutions. Our team creates industry-specific solutions that meet business needs. This leads to smooth Android app innovation.

Here are some sectors that are really benefiting from our Retrofit work:

  • E-commerce: Makes transactions smooth and reliable, keeping customers happy and coming back.
  • Healthcare: Helps with secure and efficient talks between patients and doctors, improving service.
  • Fintech: Boosts data safety and handling, key for financial trust and security.
  • Social Networking: Supports dynamic data use, making user experiences more engaging and interactive.

Our deep knowledge in these Retrofit application sectors lets each industry tap into Android app innovation. We focus on industry-specific solutions to keep businesses leading in their markets.

IndustryKey Benefits
E-commerceEnhanced Transactions, Customer Satisfaction
HealthcareSecure Communication, Better Service Delivery
FintechData Handling, Security
Social NetworkingDynamic Data Integration, User Engagement

Client Testimonials and Success Stories

Our clients love our Retrofit development services. They talk about how reliable and efficient we are. We’ve helped many businesses in the e-commerce and healthcare fields.

Case Study 1: E-commerce App

We worked with a big e-commerce site to make their app better. We focused on making the app faster and more reliable. This made shopping online smoother for everyone.

We also made the app’s data handling better. This led to happier customers. The app now updates in real-time and manages inventory well.

Key MetricsBefore RetrofitAfter Retrofit
App Load Time5 seconds2 seconds
User Satisfaction Rate70%95%
Data Handling EfficiencyModerateHigh

Case Study 2: Healthcare App

We helped a medical software company with their app. We made it better for handling data and keeping it safe. Now, the app updates patient info in real-time and makes scheduling easier.

Users feel safer and more satisfied. The app’s new features have made things more efficient for everyone.

Key MetricsBefore RetrofitAfter Retrofit
Data Update FrequencyHourlyReal-time
User Security Satisfaction80%98%
Operational EfficiencyAverageHigh

The Cost-Effectiveness of Retrofit Development

Retrofit is a top pick for cost-effective Android app development. It offers big Retrofit savings thanks to its efficient networking. By choosing Retrofit, businesses save money and get long-term benefits.

Comparative Cost Analysis

Looking at costs, Retrofit projects are often cheaper than old methods. They use less time and resources. This means better investment ROI for companies.

Development ApproachInitial InvestmentDevelopment TimeMaintenance Cost
Retrofit Development$50,0006 Months$5,000/year
Traditional Development$70,0009 Months$10,000/year

Long-Term Savings

Retrofit’s long-term gains are huge. The Retrofit savings show up in lower costs for updates and maintenance. This leads to a better investment ROI over time. Retrofit is a smart choice for keeping Android apps top-notch.

Why Choose Upstaff for Hiring Retrofit Developers

In today’s market, businesses need top Retrofit developers. They must improve Android apps with advanced networking and API integration. Upstaff offers unmatched developer talent and a smooth hiring process. We ensure each developer meets the highest standards.

Reliable tech staffing is key to project success. Our experts match you with Retrofit developers with a strong Android development background. By choosing Upstaff, you get professionals who meet your project needs and timelines. We focus on client satisfaction, building trust and long-term partnerships.

Our services meet each project’s unique needs, offering tailored staffing solutions. With Upstaff, you get full support for integrating new talent into your team. Choose Upstaff for top developer talent, reliability, and great results in Android Retrofit development.

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Talk to Our Expert

Our journey starts with a 30-min discovery call to explore your project challenges, technical needs and team diversity.
Manager
Maria Lapko
Global Partnership Manager

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FAQ

What is a Retrofit Developer? Arrow

A Retrofit Developer is a specialist in the Retrofit framework/language, focusing on developing applications or systems that require expertise in this particular technology.

Why should I hire a Retrofit Developer through Upstaff.com? Arrow

Hiring through Upstaff.com gives you access to a curated pool of pre-screened Retrofit Developers, ensuring you find the right talent quickly and efficiently.

How do I know if a Retrofit Developer is right for my project? Arrow

If your project involves developing applications or systems that rely heavily on Retrofit, then hiring a Retrofit Developer would be essential.

How does the hiring process work on Upstaff.com? Arrow

Post Your Job: Provide details about your project.
Review Candidates: Access profiles of qualified Retrofit Developers.
Interview: Evaluate candidates through interviews.
Hire: Choose the best fit for your project.

What is the cost of hiring a Retrofit Developer? Arrow

The cost depends on factors like experience and project scope, but Upstaff.com offers competitive rates and flexible pricing options.

Can I hire Retrofit Developers on a part-time or project-based basis? Arrow

Yes, Upstaff.com allows you to hire Retrofit Developers on both a part-time and project-based basis, depending on your needs.

What are the qualifications of Retrofit Developers on Upstaff.com? Arrow

All developers undergo a strict vetting process to ensure they meet our high standards of expertise and professionalism.

How do I manage a Retrofit Developer once hired? Arrow

Upstaff.com offers tools and resources to help you manage your developer effectively, including communication platforms and project tracking tools.

What support does Upstaff.com offer during the hiring process? Arrow

Upstaff.com provides ongoing support, including help with onboarding, and expert advice to ensure you make the right hire.

Can I replace a Retrofit Developer if they are not meeting expectations? Arrow

Yes, Upstaff.com allows you to replace a developer if they are not meeting your expectations, ensuring you get the right fit for your project.