Hire the best Kotlin Developers in Bucharest, RO
Check out Kotlin Developers in Bucharest, RO with the skills you need for your next job.
- $50 hourly
- 5.0/5
- (34 jobs)
👋 Hello! I’m a highly skilled and experienced full-stack software engineer with a proactive, solution-oriented approach. I specialize in architecting systems from the ground up, providing a clear vision and implementing the correct processes before diving into development. My experience spans a wide range of technologies, making me a true generalist capable of handling various aspects of software development. Backend: - Java (Spring, OSGI) - Kotlin - Python - Go - Rust - PHP Frontend: - Next.js - React.js - Angular - Vanilla JS/HTML - Figma - Wireshark DevOps/Miscellaneous: - AWS KMS - CloudFormation - Sentry - ECS - S3 - EKS I’m always looking for the next challenge and thrive in environments that require quick adaptation and problem-solving. Even in the most uncertain and complex situations, I excel at navigating new challenges—no matter how deep or uncharted the waters may be. If you need a software engineer who can confidently jump into the unknown and find a way to deliver exceptional results, I’m here to help you achieve your goals.Kotlin
APISpring MVCAdobe Experience ManagerOSGiRuby on RailsFLAApache GroovyTypeScriptPythonJavaReactPostgreSQLAndroid App DevelopmentAngularJSJavaScript - $45 hourly
- 4.7/5
- (17 jobs)
With more than 10 years of experience in QA Engineering, I bring expertise on all aspects of software quality assurance, helping build robust and reliable software products. My journey includes high-profile enterprises like Vodafone and Google, but also smaller companies and startups/ scale-ups from sectors like fintech, adtech, health tech, B2C mobile apps, teleco, SaaS and more. My track record includes optimising QA processes, implementing best practices, and orchestrating end-to-end testing lifecycles. My proficiency in test automation, performance testing, and continuous integration is complemented by a relentless commitment to quality. I love turning challenges into opportunities for growth, whether by improving testing frameworks, expanding test coverage, or aligning QA goals with business needs. Some of my skills include Leading, mentoring, and coaching QA engineers Establishing QA processes, operational workflows, and enhancing product lifecycle Developing and tracking quality metrics Documenting and refining best practices Reviewing and analyzing design and functional requirement documents Crafting QA strategies, planning, and organizing QA sprints Identifying and defining necessary test cases and automated tests Reviewing automated tests and manual test cases Integrating new tools and technologies for CI/CD Enhancing the automation framework Fostering a collaborative environment across teams and individuals Some of frameworks I've worked with Mobile Testing Frameworks: Android: Used Espresso for stable, white-box tests, UIAutomator for system interactions, and Compose Testing Libraries for Jetpack Compose. iOS: XCUI Test for reliable iOS-specific element testing. Flutter: Flutter Integration Tests for cross-platform E2E tests. React Native: Preferred Detox for white-box testing; used Appium selectively for cross-platform needs. API Testing: REST Assured for REST API validation, covering responses, authentication, and performance. Web Testing Frameworks: Selenium for cross-browser/regression testing. Playwright for parallelizable, stable tests. Cypress for quick setup and CI/CD integration in JavaScript apps.Kotlin
iOSTest Automation FrameworkPythonJavaAutomationQA Software & Testing ToolsAndroidSoftware QABug Tracking & ReportsAPI TestingEnd-to-End TestingIntegration TestingPerformance TestingMobile App Testing - $50 hourly
- 0.0/5
- (0 jobs)
I describe myself as a confident and motivated person who is goal-driven, open to challenges and always keen to learn and discover new things. Described by my colleagues as a team player who is always willing to help. Over the past years, I have developed a good adaptability while working in stressful conditions, being capable of finding the best solution for business in critical situations. The passion for technology drives me to try to keep the balance between business requirements and the best technical approach.Kotlin
Event Sourcing FrameworkDockerKubernetesCI/CDCloud ArchitectureQA EngineeringRESTful APIGoogle Cloud PlatformAmazon Web ServicesDatabaseJava - $55 hourly
- 0.0/5
- (0 jobs)
Senior Java Developer with 8 years experience Outgoing, hard working and always trying to get the best solution for a problem. Also a very friendly person with a good sense of humor, sporty and keen on learning new things. • Experienced in Java / Kotlin • Back-end development • Open to learning new programming languagesKotlin
REST APIWeb DevelopmentData StructuresAlgorithmsSQLGitAzure DevOpsKubernetesDockerLinuxSpring BootJava - $60 hourly
- 0.0/5
- (0 jobs)
Software Tech Lead | Solution Architect | Blockchain & Cloud Expert Bogdan is an innovative Software Development Consultant & Tech Lead with a proven track record of delivering high-quality solutions across industries such as blockchain, digital identity, healthcare, fintech, and enterprise systems. He specializes in designing scalable architectures, leading development teams, and driving digital transformation. With expertise in Java, JavaScript, Node.js, React, blockchain (Ethereum, web3.eth), cloud infrastructure (AWS, Kafka, Camunda), and modern software architectures (DDD, Hexagonal, EDA), Bogdan excels at bridging the gap between technology and business strategy. He has successfully led and contributed to: - Blockchain-based digital identity solutions (CertME, IDBC) - Enterprise epidemic management systems (TAMEC) - Custom resource management platforms (SuperConstruct) - National-scale government solutions (Romanian Customs Authority – TSD-PN) - HealthTech innovations & infrastructure modernization (Allianz Germany) In his tenure at Microsoft, Bogdan honed his skills in software development and cloud services, contributing to projects that enhanced system performance and user experience. At ING and Raiffeisen Bank, he developed secure and efficient financial applications, ensuring compliance with industry standards. His role at Orange involved implementing scalable telecommunications solutions, improving service delivery and customer satisfaction. Bogdan thrives in fast-paced, technically progressive environments where he can apply systems thinking, strategic planning, and hands-on development to solve complex challenges. He is passionate about streamlining processes, enhancing efficiency, and leveraging cutting-edge technologies to drive innovation. If you’re looking for a high-impact tech leader to architect solutions, optimize software development, or lead transformation projects, let’s connect! 🚀Kotlin
MongoDBPostgreSQLOracleAzure DevOpsApache KafkaSpring BootReactJavaScriptNode.jsC#KubernetesDockerREST APIJava - $20 hourly
- 0.0/5
- (3 jobs)
In my role as an accomplished Senior Android Software Engineer, I offer a rich reservoir of experience and expertise. My extensive background in mobile application development, with a special focus on the Android platform, has empowered me to contribute to a multitude of successful projects. My dedication lies in delivering robust and innovative solutions, continually pushing the boundaries of what is achievable within the Android ecosystem.Kotlin
FirebaseAndroid SDKGame DevelopmentAndroidMobile App DevelopmentRetrofitAndroid Room PersistenceAndroid App DevelopmentAPI DevelopmentC++SQLiteGitJava - $30 hourly
- 0.0/5
- (0 jobs)
I have an experience in many development areas but i am specialized in front-end development and I have built more than two responsive projects that works correctly on a variety of screens. I have also an good experience in git and continues deployment. I have diploma in cloud application development.Kotlin
FlutterSwiftTailwind CSSPostgreSQLMySQLVue.jsReactNode.jsLaravel - $60 hourly
- 0.0/5
- (0 jobs)
With over nine years of experience in developing web, iOS, and Android applications across diverse industries, I am confident in my ability to contribute significantly to your team. Some of my notable projects that I developed single-handedly include: * https://digitalhealth ro: Ranked among the fastest websites in the world, constantly scoring 95+ in performance on Google Pagespeed. * INTVL: The first mobile app for medical statistics, available on App Store: https://apps apple com/us/app/intvl-medical-statistics/id1602981011 * https://elysianhorizons com: The first real estate platform offering real-time livability scores using air quality and security APIs. I possess advanced proficiency in: * JavaScript/TypeScript: React.js, React Native, Next.js, Node.js, Express.js, Nest.js, jQuery, Astro.js, Angular, Vue.js. * PHP: WordPress, Laravel, Drupal, Magento. * Swift: SwiftUI, UIKit. * Java: Spring, Hibernate. * Python: FastAPI, Django, Flask. * Dart: Flutter. * Other Languages: Kotlin, C#, Objective-C, C++, Golang, R. * SQL and NoSQL databases: MySQL, PostgreSQL, SQLServer, SQLite, Supabase, NoSQL, MongoDB, Firestore. * Cloud services and infrastructure: AWS (EC2, RDS, S3, IAM, Lambda, EB, EFS, Cloudfront), Firebase, Google Cloud, Heroku. In addition to my technical skills, I have a strong background in business development, project management, finance, analytics, operations, and medical engineering. This multidisciplinary experience gives me a unique edge as a software developer, enabling me to approach projects holistically.Kotlin
PostgreSQLUIKitFlutterReact NativeSwiftUISwiftPythonJavaWordPressPHPNode.jsReactTypeScriptJavaScript - $30 hourly
- 0.0/5
- (0 jobs)
I am a software engineer with experience in building and publishing desktop and mobile apps for small businesses. - Build & publish Android and iOS apps - Multi-platform app development: React Native, Flutter - Windows application development: C++ MFC, C# WinForms/WPF/UWP - Good altitude for team collaboration - Higher project management skillsKotlin
Mobile AppDesktop ApplicationAndroid App DevelopmentiOS DevelopmentPHPJavaJavaScriptTypeScriptReact NativeC#MySQLFlutterSwiftObjective-C - $23 hourly
- 5.0/5
- (2 jobs)
Highly motivated to learn, self‐improve and eager to be part of a team with the same beliefs. In the last few years, I took part in many projects using Java. Problem‐solving skills and a passion for code with a strong emphasis on best practices and code reusability. Always open to learn and work with new technologies and tackle interesting problems. Strong knowledge of design and previous experience in advertising.Kotlin
KibanaGrafanaAppDynamicsApplication Performance Monitoring SoftwareSplunkBashAwkBack-End DevelopmentNode.jsGitJavaScriptRESTful APISpring BootJava - $25 hourly
- 0.0/5
- (0 jobs)
I am an Android Developer, highly skilled in native app development with 7֡ years of experience designing, building, and customizing android apps for various domains such as Hotel Management, Freight forwarding & shipping software solutions, Payment System, Doctor Booking, Health, and Fitness, Food Industry, Social Media Apps, Dating App, Productivity Apps, Service Providers, etc. I have the passion to help you complete your project in the best possible way. My Android skills include expertise in: ❅ Java ❅ Kotlin ❅ Android Jetpack ❅ Android app modularization ❅ Android Architecture patterns such as MVC, MVP, MVVM ❅ WebRTC ❅ Dagger/Hilt ❅ Rx (Java, Kotlin) ❅ Kotlin Coroutines ❅ Local Database management with SQLite, Realm, ORMLITE, Room ❅ working with APIs (Retrofit, Volley, okhttp3) ❅ working with real-time APIs (WebSockets, XMPP, IoT MQTT) ❅ Firebase Integration ❅ Maps (Google, MapBox, Openstreetmap) ❅ social media integration with Facebook, Twitter, and Instagram ❅ PDF Rendering ❅ 3D Model Rendering ❅ device hardware such as Bluetooth, GPS, Accelerometer, Camera, etc. ❅ testing (Unit testing, Espresso testing, Firebase test lab) In addition to my Android skills, I also have expertise in: ❅ Data Structures and Algorithms ❅ OOP patterns ❅ Spring framework ❅ JavaFx ❅ HTML ❅ CSS ❅ Javascript ❅ TypeScript ❅ React Native ❅ Git (Bitbucket, GitHub, Gitlab) ❅ Agile methodology Why hire me? ★ I prioritize your time and reputation. I understand the importance of meeting your requirements and will only commit to your projects if I am confident in delivering 100% satisfaction. ★ I am highly organized and efficient. I keep track of schedules and deadlines, ensuring timely completion of projects. I look forward to the opportunity to work with you.Kotlin
Google MapsJetPackRxJavaEspressoPayment Gateway IntegrationAndroid SDKSQLiteIn-App PurchasesSocial Media Account IntegrationPush NotificationsFirebaseJavaAndroidNative App Development - $25 hourly
- 0.0/5
- (0 jobs)
I'm an experienced Java developer that built my expertize by working on mid to large enterprise projects inside the financial and e-commerce sectors.Kotlin
AngularReactJavaFXFitNesseCucumberMockitoAndroid App DevelopmentSQLSpring FrameworkJava - $40 hourly
- 0.0/5
- (0 jobs)
I'm a developer experienced in building native Android apps. I also devled into embedded development with Rust, iOS app development and Windows desktop app development.Kotlin
Functional ProgrammingSQLiteSQL.NET FrameworkAndroidC#JavaRustAndroid App DevelopmentDesktop Application - $25 hourly
- 0.0/5
- (0 jobs)
Dear. This is Andrei Popa from Romania. I have been working in web&mobile development for 6 years. Released several mobile apps like Uber Taxi, Fintech, real estate and so on. Built and deployed several websites and admin panels on Ubuntu Server. Key Skills: ✔️Androiod/Java, Swift ✔️ Reactjs(Redux/Saga/Hook) ✔️ Laravel, Nodejs/Express ✔️ PHP, Javascript, CSS, HTML, WP, Shopify ✔️ Firebase, Mysql ✔️ RestAPI, Stripe, IEX, Binance ... ✔️ Web3, Solidity, Ethereum, BSC, Stellar. ✔️ Git/Github/Trellor Why me? ★ Good team work and good communication. ★ 100% client satisfaction ★ Delivery on time ★ Daily update ★ Hard-working, full time With strong and reliable skills I tend to hard-working and I have strong teamwork and sensitive problem solving ability. I enjoy a challenge to master new skills always. If you are looking for a senior developer, here is right position now. Please no doubt, feel free to contact me to make your business success. Thanks, again. Sincerely. Andrei PopaKotlin
web3.jsSolidityNode.jsSwiftReactSCSSStripeAndroidJavaScriptLaravelPHPJavaMongoDBMySQL - $30 hourly
- 0.0/5
- (0 jobs)
I am a software enginner with experience in building mobile apps for small businesses. Provides app publishing services as well as development. - Build apps for Android and iOS: Native(Java/Kotlin, Swift/Objective-C), Hybrid (React Native, Flutter) - Experienced with HTML, CSS3, JavaScript, Node.js, PHP, MySQL, PostgreSQL, MongoDB, etc. - Can manage full project from scratch - Highly responsible for communicationsKotlin
Web ApplicationSQLiOS DevelopmentAndroid App DevelopmentMobile App DevelopmentTypeScriptJavaReact NativeJavaScriptDartFlutterSwiftObjective-CPHP - $30 hourly
- 0.0/5
- (0 jobs)
I am a software enginner with experience in building and publihing desktop and mobile apps for small businesses. - Build native mobile apps: Java/Kotlin for Android, Swift/Objective-C for iOS (including C/C++ linkage) - Multi-platform app development: React Native, Flutter - Experienced with backend web API development: HTML, CSS3, JavaScript, Node.js, PHP, MySQL, PostgreSQL, MongoDB, etc. - Windows application development: C++ MFC, C# WinForms/WPF/UWP - Game development: cocos2d-x, Unity - Can manage full project from scratch - Well familiar with team collaborationKotlin
SQLGoogle Cloud PlatformiOS DevelopmentMobile App DevelopmentAndroid App DevelopmentPHPJavaScriptTypeScriptReact NativeC#FlutterObjective-CSwift Want to browse more freelancers?
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