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Hire the best Kotlin Developers in Warsaw, PL

Check out Kotlin Developers in Warsaw, PL with the skills you need for your next job.
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  • $38 hourly
    • 5.0/5
    • (4 jobs)
    ⚠️ 𝐏𝐫𝐞𝐬𝐬 𝐈𝐧𝐯𝐢𝐭𝐞 𝐁𝐮𝐭𝐭𝐨𝐧 𝐨𝐧 𝐦𝐲 𝐩𝐚𝐠𝐞 𝐚𝐧𝐝 𝐥𝐞𝐭'𝐬 𝐭𝐚𝐥𝐤 I'm a highly focused and motivated Mobile Team Lead developer at Itexus. Organized, methodical and a keen eye for detail results in solid coding and trustworthy mobile apps. Transforming client requirements into great apps based on a clear and quality code are core values in achieving long-lasting relationships. I have 7+ years of experience in mobile development using Android, Kotlin, Java, and iOS, Swift, Objective-C, Flutter. I do not work with React Native. Technologies & Tools Kotlin | Java | Android | Swift | iOS | Dart | Flutter | KMM | KMP| Kotlin MutliPlatform | JavaScript | HTML | CSS | React Native | ReactNative | Native Mobile Development | Dagger 2 | Koin | GetIt | MobX | ReactiveX | Kotlin’s flow | Coroutines | Cicerone | Navigation Component | Realm | Room | Retrofit | OkHttp | Moshi | Scarlet | Apollo | Dio | Compose | ViewBinding | Splash Screen API (animated) | MPAndroidChart | RiverPod | Freezed | Groovy | Kotlin DSL Our Expertise at a Glance • Mobile App Development: Android, iOS, & Cross-Platform App Development using Java, Kotlin, Swift, Objective C, Flutter, and more. • Website and Full Stack Development: Crafting seamless back-end experiences with .Net, Python, Java, Javascript, React.js, Angular.js, Node.js, MERN, MongoDB, PHP, etc. • Logo & UI/UX Design: Bringing your ideas to life with Adobe XD, Photoshop, Sketch, Figma, etc. • End-to-End Solutions: From logo design, UI/UX development, workflow setup, testing to deployment in app stores, we've got it all covered. We do not use v0.dev lovable.app CursorAI, Cursor, Windsurf, Trae, GitHub Copilot, Tabnine, Qodo, Devin AI, and AutoDev for speed up coding, we know other methods to do it efficiently. Why Choose Itexus? • Customized Approach: We tailor our services to fit your needs and budget. • Agile Workflow: Regular updates, milestones, or scrum sprints keep you in the loop. • Quality Assurance: Our meticulous testing process ensures that every project we undertake meets the highest standards of quality and functionality. • Competitive Price Assurance: We provide top-quality services at competitive prices to offer you the best value for your investment. • Guaranteed Success: We work tirelessly to exceed your expectations. Industries We Cover Healthcare, Transport, Retail, Asset Management, Wealth Management, Real Estate, Dating, Rental, Food Delivery, Fintech / Finance and Banking, Cryptocurrency, Entertainment, Hospitality, Non-Profit, Sports and Fitness, Travel and Tourism, Wellness, Medical Dashboard, Marketplace, Advertising, Automotive, Aircraft, Business Innovations, Human Resources, LegalTech, Lifestyle, Marketing, Education, E-learning, Insurance, IoT, E-commerce, Enterprise. Highlighted Skills Artificial Intelligence | E-commerce Solutions | Chatbots | Version Control Systems | Git | GitHub | Project Management and Collaboration Tools | ClickUp | Jira | Trello | Documentation and Code Commenting | SEO and Maintenance | MVP SAAS | Rebuild | Prototype | Start-Up | High-Friendly Custom Development | Transform | Solution | Ensure | Create | Enhance | Implement | Great Problem-solving | Excellent Communication | Assist | Collaborate | Mobile App Development | Web App Development | User Interface Design | Payment Integration | Stripe | Payment Gateway | ERP | CRM | User-friendly Interface | Mobile App Development | Mobile App Developer | Flutter App | Flutter Developer | Flutter Firebase | Flutter Dart | Flutter App Developer | App Developer | Mobile Developer | React Native | React Native Mobile App Development | Mobile App Builder | Flutter App Developer | Flutter Laravel | Mobile App Development | Mobile App Developer | Flutter App | Flutter Developer | Flutter Firebase Business with 1000+ Employees | Business with 10-99 Employees | Business with 100-999 Employees | Business with 1-9 Employees | Apple HealthKit | AI Marketplace | Waste Management & Remediation | AI App Development | Healthcare | Android App | Audio Conversion | ChatGPT API | Dating & Social Life | NFT Marketplace | Ecommerce Website Development | AI Speech-to-Text | Email Campaign Setup | API | Startup Company | Artificial Intelligence | Health Coaching | Health | Maintenance Management Talent Good Knowledge, Talented, Experienced, Skilled, Strong Experience, Proven Experience, Agency, Team, Company, Specialist, Proven Track Record, Strong Background, Write Clean Code, Deep Expertise, Bring to Life, Cross-platform, Attention to Detail, Long Term. ⚡️ AVAILABLE FOR NEW PROJECTS ⚠️ Press Invite Button on my page and let's talk
    Featured Skill Kotlin
    RESTful API
    API
    Blockchain
    Android SDK
    Flutter
    C++
    Swift
    Firebase
    API Integration
    Android
    Android App Development
    iOS
  • $35 hourly
    • 4.7/5
    • (5 jobs)
    ✋ Representing Sixhands agency I am a highly skilled player with app and web development competencies and 8 years of experience in the industry. I have a deep understanding of the latest technologies and best practices in app and web development, and I am committed to delivering high-quality solutions that meet my clients' specific needs. My expertise includes developing custom apps for iOS and Android, building responsive and user-friendly websites, and integrating various APIs and third-party tools. I also have experience with e-commerce platforms, CMS systems, and database management. My approach to work is client-centric, and I strive to ensure that my clients are satisfied with every aspect of the project. From the initial consultation to the final product launch, I work closely with my clients to ensure that their vision is realized! In addition to my technical skills, I am a great communicator and collaborator. I believe that clear communication is key to successful projects, and I work closely with my clients to ensure that we are always on the same page. If you are looking for a reliable and talented app and web developer who can deliver exceptional results, look no further. Contact me today to discuss your project! If you are looking for a reliable and talented freelancer who can deliver exceptional results, look no further. Contact me today to discuss your project!
    Featured Skill Kotlin
    Vue.js
    Android App
    Django
    CI/CD
    GitHub
    PHP
    React Native
    Flutter
    Swift
    React
    Angular
    iOS Development
  • $70 hourly
    • 4.8/5
    • (174 jobs)
    Hi, I am the founder of Symfa, a web and mobile development company. Since 2008, we’ve been providing modern technology solutions helping businesses from 20+ countries facilitate their product and process digital transformation. My mission is to help our clients achieve their goals by leveraging the latest tech. I help create a tech vision of the would-be solution and ramp up an engineering team with the skill set and experience in the appropriate tech stack. Tech Focus We have a strong focus on Node.js and C# / .NET stacks in a combination with JavaScript / TypeScript for Front-end with modern frameworks such as Angular, React and Vue.js. We use Flutter, Swift, and Kotlin for Cross-platform and Native mobile app development. Expertise We have the strongest expertise in business process automation (such as CRM, inventory management, eProcurement, booking, payment integrations, etc.), Business Intelligence / ETL / analytics software development, microservice architecture engineering, and legacy software modernization. Most of our clients come from fintech, insurance, real estate and manufacturing industries. For them we build full-fledged enterprise-level software and test out new ideas with PoCs and MVPs. We also contribute to SaaS product development initiatives of our clients helping them overcome the typical technical challenges, including third-party systems integrations, subscription lifecycle management, zero downtime deployment and more. We have already delivered 200+ projects. This hands-on experience allows us to come up with more cost-efficient and reliable solutions, than the competition with less subject-matter expertise. Being an architect myself and a practicing developer with 15+ years of experience, I can help you with DevOps tasks as well: - Deployment of the release delivered by the developers in production; - Integration and deepening of development processes in the supply; - Standardization of development environment; - Setting the infrastructure for the features of the developed software; - Preparing the production environment for frequent changes; - Detection and correction of problems; - Automatization of processes. As a business owner, I strongly focus on delivering top-quality service to our clients. We are interested in your project’s success just as much as you are. To achieve this goal we are continuously fine-tuning our processes, streamlining communication, and applying the most efficient agile software development and project management techniques. Our developers speak fluent English, offer flexible working hours, and invest in their self-education and professional growth which is part of our corporate culture. If you have an idea that requires implementation, if your current dev initiative is stalled or if you are looking to replace outdated software - you’ve come to the right place. My team and I are at your service. We have experience both in development from scratch and project rescue. We can work both as a standalone engineering team developing a solution end to end, or in a collaboration with the client’s in-house team. Let’s set up a call to discuss your pains and plans and see how we can help. Once I get a better understanding of your situation, I will provide a free quote for the solution. Feel free to message me, Sergey Galuza
    Featured Skill Kotlin
    NodeJS Framework
    Quality Assurance
    DevOps
    Vue.js
    Business Analysis
    .NET Core
    Angular
    Node.js
    JavaScript
    C#
    Flutter
    Swift
    TypeScript
    React
  • $35 hourly
    • 5.0/5
    • (179 jobs)
    ✅ 250+ successfully completed contracts, 7 years of programming experience 💼 Founder of fast-growing outsource agency. I can offer you services of: - Mobile App Development: Creating responsive and intuitive apps for iOS and Android using React Native and Swift. - Web App Development: Crafting interactive and scalable web applications with HTML, CSS, JavaScript, Angular, and React. - Game App Development: Designing engaging and immersive games using Unity and Unreal Engine. - 2D&3D Design - WatchOS / tvOS Development - Project Management I’m ready to drive your project to success. Let's discuss your development needs today!
    Featured Skill Kotlin
    UX & UI
    ARKit
    VR Application
    AR & VR
    AR & VR Development
    SwiftUI
    Mobile App Development
    Java
    Smartphone
    Virtual Reality
    Native App Development
    Swift
    iOS
    Android
  • $35 hourly
    • 5.0/5
    • (15 jobs)
    With over three years of experience leading Android development teams, I specialize in creating innovative mobile solutions that elevate user experiences. My expertise spans a wide range of skills, including Android development, technical documentation, product management, app deployment, and software architecture. I excel in team leadership, fostering collaboration and driving continuous improvement, while skillfully managing conflict resolution and ensuring smooth operations. Proficient in Java and Kotlin programming, version control systems, API integration, and database management, I bring technical depth to every project. From managing issue tracking systems to optimizing apps for social media platforms, I thrive on delivering high-quality results and pushing the boundaries of mobile technology to achieve exceptional outcomes. I am confident that my skills and experience align perfectly with your needs, and I am excited about the opportunity to contribute to your project. Thank you for considering my application. I look forward to the possibility of working together.
    Featured Skill Kotlin
    RESTful Architecture
    JavaFX
    JSON
    Git
    Java
    Android App Development
    In-App Advertising
    Smartphone
    Android SDK
    API Integration
    SQLite Programming
    Chat & Messaging Software
    Android
  • $20 hourly
    • 5.0/5
    • (6 jobs)
    Hello, I'm a freelancer Yevhenii Senior Mobile and Game Developer with 6+ years of experience Field of competencies: ● Android Development ● IOS Development ● Game Development ● Domain Knowledge IT and Implementation skills: ● Programming: Java, Kotlin, C#, C++, Lua ● Frameworks: Android SDK/NDK, AOSP, Kotlin Multiplatform, Unity, Retrofit, Gson,Okhttp, RxJava, RxAndroid, RxKotlin, Kotlin Coroutines, MVI, MVC, MVP, MVVM, Glide, Picasso, .Net ● Databases: SQL, SQLite, ROOM ● Development Tools: Bitbucket, Github, Gitlab, Android Studio, Visual Studio, SourceTree, Plastic Git, Github Desktop ● Bugs and project reporting: Jira, Redmine, Trello ● Others: MS Office, terminal of MacOS and Windows, QA skills
    Featured Skill Kotlin
    VR Application
    ARKit
    Lua
    C++
    C#
    Game Development
    Java
    Unity
    Mobile App
    Clean Architecture
    Mobile Game
    Android SDK
    iOS Development
    Android App Development
  • $35 hourly
    • 4.2/5
    • (5 jobs)
    My name is Mikhail, I'm Senior Android&iOS And Senior Web Developer. So now I'm glad to see you here!) I have experience in development both huge-loaded websites for big companies and mobile applications for Android&iOS platforms. I took part at development for companies in spheres of medicine, sport, banking, real estate, e-commerce. The most popular products, which were made by me, have about 400-500k active users and total amount of users is more than 2M. My main principles are writing high-quality code and deep diving into the problems of my customers, to solve them in the best way. Skills: Mobile Development - Kolin/Swift/React Native - MVVM/MVI/VIPER/MVP - DI - SOLID&Clean Architecture - CI/CD - Firebase&Google APIs Web Development - Node.js/Typescript - React.js/next.js/Angular/Vue.js - Postgres/MongoDB - Docker/RabbitMQ
    Featured Skill Kotlin
    Android
    iOS
    CI/CD
    Swift
    MERN Stack
    Mobile App Development
    Web Development
    React
    AJAX
    WordPress
    CSS 3
    HTML5
    Landing Page
  • $40 hourly
    • 4.5/5
    • (1 job)
    🎉 10+ Years of Expertise 🌟 Top-Rated Plus 📈 300+ Projects Completed ⏳ On-Time, Every Time Hey there!✋I'm George, the CEO of the development team at Itexus - a professional software frontend and backend development and consulting company specialized in Fintech, Insurance, Healthcare and other areas. I have 10+ years of experience in web development using Node.js, JavaScript, React (not React Native), Angular, not Vue.js. Our Expertise at a Glance • Mobile App Development: Android, iOS, & Cross-Platform App Development using Java, Kotlin, Swift, Objective C, Flutter, and more. • Website and Full Stack Development: Crafting seamless backend experiences with .Net, Python, Java, and frontend development on Javascript, React.js, Angular.js, Node.js, MERN, MEAN, MongoDB, PHP, etc. • Logo & UI/UX Design: Bringing your ideas to life with Adobe XD, Photoshop, Sketch, Figma, etc. • End-to-End Solutions: From logo design, UI/UX development, workflow setup, testing to deployment in app stores, we've got it all covered. We do not use v0.dev lovable.app CursorAI, Cursor, Windsurf, Trae, GitHub Copilot, Tabnine, Qodo, Devin AI, and AutoDev for speed up coding, we know other methods to do it efficiently. Why Choose Itexus? • Customized Approach: We tailor our services to fit your needs and budget. • Agile Workflow: Regular updates, milestones, or scrum sprints keep you in the loop. • Quality Assurance: Our meticulous testing process ensures that every project we undertake meets the highest standards of quality and functionality. • Competitive Price Assurance: We provide top-quality services at competitive prices to offer you the best value for your investment. • Guaranteed Success: We work tirelessly to exceed your expectations. ⚡️ AVAILABLE FOR NEW PROJECTS: Daily updates, Quick turnaround, Flexible Availability, Highest-Quality deliverables, Conversion increase, Individual approach to each project! I am out there seeking for new opportunities and projects where we can put our knowledge/experience to great use and bring value to both individuals, startups and well-established companies.
    Featured Skill Kotlin
    Django
    Web Application
    Web Design
    Health & Fitness
    ASP.NET
    FinTech
    UX & UI
    Healthcare
    Angular
    React
    Node.js
    Python
    Swift
    Mobile App Development
  • $16 hourly
    • 5.0/5
    • (13 jobs)
    I am a skilled Java developer with extensive experience in building high-performance, scalable, and reliable applications. With over 3 years of experience in the industry, I have honed my skills in Java development, including core Java, J2EE, Spring Framework, Hibernate, and Maven.
    Featured Skill Kotlin
    Automation
    Scripting
    Data Scraping
    AWS Application
    Oracle
    AWS Amplify
    Docker
    RESTful Architecture
    Java
    Golang
    RESTful API
    MySQL
    Spring Framework
    Redis
  • $27 hourly
    • 4.7/5
    • (2 jobs)
    👋 Hey! I'm Taras - Senior Full-stack Developer with more than 10+ years of deep knowledge and commercial experience in mobile development, technical consulting, and project management. Here are some of my top achievements: ⭐️ My clients made $15M+ with apps I developed ⭐️ 10+ years of commercial experience ⭐️ 70% of client return rate ⭐️ Over 40 projects completed and launched ⭐️ Saved $500K+ to clients by selecting a cost-effective stack for development ⭐️ 10M+ active users across developed products ⭐️ 4.5 average rating of products in App Store & Google Play Why work with me? ✅ 𝟏𝟎𝟎% 𝐆𝐮𝐚𝐫𝐚𝐧𝐭𝐞𝐞𝐝 𝐪𝐮𝐚𝐥𝐢𝐭𝐲 𝐝𝐞𝐥𝐢𝐯𝐞𝐫𝐲 𝐨𝐫 𝐲𝐨𝐮𝐫 𝐦𝐨𝐧𝐞𝐲 𝐛𝐚𝐜𝐤 ✅ Cost-effective development approach ✅ Business and product approach to your project ✅ 3 months of FREE maintenance We take care of the full development cycle - from product analysis to delivery to the market, so you can concentrate on your business growth! Industries we serve: 🔸Healthcare & Fitness 🔸Social Networks 🔸Food & Restuarants 🔸 Retail & E-commerce 🔸On-demand solutions 🔸 Logistics & Distribution 🔸 Real Estate 🔸 Travel & Hospitality 🔸 E-learning 🔸Blockchain & NFT Technologies I use in my projects: *️⃣ Mobile Apps: Swift, Kotlin, React Native, Flutter *️⃣ Web Apps: React, Angular, JavaScript *️⃣ API development: Node.js, PHP, Laravel, Python, C#, .NET *️⃣ E-commerce development: Shopify, Magento, Woocommerce *️⃣ Blockchain development: Solidity, Ether.js, Hardhat, Truffle, Rust *️⃣ Design: Figma *️⃣ Cloud Services: AWS, Google Cloud, Firebase, Our first call? Expect an in-depth Zoom discussion about your project, followed by a comprehensive plan based on your needs. If we're a good fit, let's move forward. If not, I can provide advice and referrals to ensure your project's success. General process: 1️⃣ Discovery call: Understanding your needs through a face-to-face Zoom call. 2️⃣ Discovery document: Outlining your project requirements. 3️⃣ Design phase: Based on specific needs, this could involve a professional designer or a basic concept. 4️⃣ Back-end development: Creating APIs, documenting processes. 5️⃣ Development cycles: Regular updates and feedback sessions. 6️⃣ Deployment: A carefully staged and executed process. 7️⃣ Continuous support: 3 months of FREE maintenance, so if any bugs & errors appear I will fix them without any extra charges.
    Featured Skill Kotlin
    Django
    Web Development
    Web Application Development
    Firebase
    Amazon Web Services
    JavaScript
    PHP
    Node.js
    Swift
    Flutter
    React Native
    Python
    React
    Mobile App Development
  • $40 hourly
    • 0.0/5
    • (0 jobs)
    Summary Java/Kotlin developer with 8 years of experience in software development. The technology stack includes Java as the main programming language and some of the most popular technologies (Spring, Hibernate, RDS, NoSql, AWS, Docker, K8s, Kafka, Camunda BPM etc). Have strong problem-solving, analytical, and interpersonal skills. I always try to improve my knowledge of modern technologies and apply the gained skills in practice.
    Featured Skill Kotlin
    Kubernetes
    Web Application
    Ecommerce
    NoSQL Database
    SQL
    Amazon Web Services
    Spring Boot
    Java
  • $40 hourly
    • 0.0/5
    • (0 jobs)
    As a Senior Full Stack Developer with over 7 years of experience, I specialize in delivering robust and scalable solutions for web and mobile applications. My expertise spans both frontend and backend development, ensuring seamless integration and exceptional user experiences. I thrive on tackling complex challenges, leveraging my diverse skill set to craft innovative solutions that meet and exceed client expectations. Key Highlights: • Mobile Development Expertise: Proficient in both native (Swift, Kotlin) and cross-platform (React Native, Flutter) mobile app development. I’ve successfully built and maintained apps with millions of users, including projects like the FrogQuest Photo Scavenger Hunt and HoneyJuror. • Backend Mastery: Skilled in frameworks such as Node.js, Python (Django/Flask), PHP (Laravel), Ruby on Rails, and Java Spring. I design secure, high-performance APIs and scalable architectures. • Frontend Excellence: Experienced in modern JavaScript frameworks like React.js, Angular.js, and Vue.js, delivering responsive, user-friendly interfaces. • Database Proficiency: Adept at working with relational (PostgreSQL, MySQL) and NoSQL (MongoDB, Neo4j) databases to handle complex data relationships efficiently. • AI/ML Solutions: Experienced in building AI-powered systems, including chatbots (RAG models) and automation tools using LangChain and Flowise. Why Work With Me? I am passionate about delivering high-quality work that aligns with your business goals. My approach combines technical expertise with effective communication to ensure transparency throughout the project lifecycle. Whether you need a cutting-edge mobile app or a scalable backend system, I bring dedication, creativity, and precision to every project. Let’s collaborate to turn your ideas into reality!
    Featured Skill Kotlin
    Back-End Development
    PHP
    Python
    Node.js
    Flutter
    Generative AI
    Chatbot Development
    Vue.js
    Swift
    Neo4j
    React
    Mobile App Development
    Web Development
  • $35 hourly
    • 0.0/5
    • (0 jobs)
    I’m a passionate and results-driven Senior Software Engineer with extensive experience in Java, Kotlin, and modern frontend technologies like React. I specialize in building high-performance, scalable, and secure applications—from backend microservices to intuitive user interfaces and mobile apps. Over the years, I’ve successfully delivered complex solutions for a wide range of industries, working with cloud technologies, scalable architectures, and robust data management systems. I thrive on engineering challenges and aim to deliver clean, maintainable, and high-performing code. Core Expertise • Web Services, Microservices, REST APIs • Scalable & Agile Architectures | High-Load Systems | Cloud Integration • Java Performance Tuning, Concurrency & Multithreading • Front-End, Mobile, and Desktop Application Development • CI/CD Automation, Agile Workflows, and Security Compliance Key Technologies & Skills Backend: Java · Kotlin · Spring Framework · RESTful APIs · Security (OAuth 2.0, SSL, DNS) Multithreading · JVM Optimization · GC Tuning · Microservices Architecture Frontend: React · Angular · Vue.js · JavaScript/TypeScript · Bootstrap · jQuery · Websockets · SPA · Thymeleaf Mobile & Desktop: Android Native (APK Analysis, Bytecode, Smali) · JavaFX · Swing · SWT · RCP · OSGi · EMF · Cross-Platform Apps Messaging & Cloud: AWS · DigitalOcean · Kafka · RabbitMQ · ActiveMQ Databases: MySQL · PostgreSQL · Oracle · MongoDB · Redis · Hibernate · POJO · CRUD Other: Financial Protocols (FIX 4.2, FIX 5.0, Arrowhead, SWIFT) What Sets Me Apart • Proactive and self-motivated with a strong engineering mindset • Experienced across full software development lifecycle • Focused on delivering real business value through clean architecture and solid performance • Team player who values honest and respectful communication Let’s build something great together. I'm ready to bring your project to life.
    Featured Skill Kotlin
    MySQL
    PostgreSQL
    Oracle
    Django
    Python
    Vue.js
    Angular
    React Native
    React
    Android App Development
    RESTful Architecture
    Spring Boot
    Multithreaded Programming
    Java
  • $30 hourly
    • 0.0/5
    • (0 jobs)
    Engineer with 3 years of experience in Full-stack development. Worked with various backend and frontend technologies. Responsible, reliable and active person with a desire to solve problems
    Featured Skill Kotlin
    RxJava
    AWS Application
    Apache Kafka
    Apache Solr
    Kubernetes
    Docker
    Hibernate
    MongoDB
    Neo4j
    PostgreSQL
    Microservice
    Spring Boot
    Angular
    Java
  • $17 hourly
    • 0.0/5
    • (0 jobs)
    👋 Hello World! I'm Denis, a passionate and innovative Android developer on a mission to create seamless and engaging mobile experiences. With a strong foundation in computer science and a knack for problem-solving, I've dedicated my career to shaping the future of mobile technology.
    Featured Skill Kotlin
    Java
    Android
  • $15 hourly
    • 0.0/5
    • (1 job)
    I have accumulated experience in crafting Android applications for various domains, including banking and messaging services. I am proficient in using Kotlin and Java and have a robust understanding of Android SDK. My technical skills, combined with my ability to understand and solve user needs, have allowed me to create functional and user-friendly applications.
    Featured Skill Kotlin
    Java
    Android SDK
    Android
  • $30 hourly
    • 0.0/5
    • (0 jobs)
    Greetings! I have been working as a Java developer for more than 7 years, my main clients are from Europe and USA. I am developeping backend systems(APIs, microservices, integrations, etc). You can safely entrust me with the work on your project and will never be disappointed in our cooperation, I can guarantee the high responsibility and quality of the tasks that I carry out, which you can be sure of when you take me to your team. Main technologies: - Java 11, 17, 21 - Spring: Core, MVC, Boot, Data, Security, Config, Cloud - AWS: DynamoDB, RDS, S3, Cognito, IAM, SQS, SNS, etc - JUnit - JMS: Kafka, RabbitMQ - JDBC, Hibernate 3.x - Docker, Jenkins - etc
    Featured Skill Kotlin
    Docker
    PostgreSQL
    Apache Kafka
    Database
    API Integration
    API Development
    Spring Framework
    Java
    Amazon Web Services
    Software Development
  • $20 hourly
    • 0.0/5
    • (0 jobs)
    I am a highly skilled and creative Android Developer specialising in developing applications using the latest Android SDKs and Kotlin Multiplatform including Jetpack Compose, Jetpack Navigation, Kotlin Coroutines, Kotlin Flows, Google API etc. I widely use MVVM pattern and REST-based integrations. My Android skills are proven by great references from clients I was working with and great feedback from other team members. You can find them on my LinkedIn profile. ANDROID TECH STACK: Android SDK • Jetpack Compose• Kotlin Coroutines• Kotlin Flows • Dagger • Material UI • HILT • Room • Retrofit • Espresso - Mockito • Lottie • Coil • Moshi • GSON • OkHttp • Robolectric and more In my portfolio, I highlight a significant project from 2023-2024 where I developed the user interface using Kotlin and Jetpack Compose. I also integrated Android with Kotlin Multiplatform Mobile (KMM) and handled the business logic for an application developed for the UK's largest pub group. If you are interested in my private projects, ask me for permission to private repositories on my GitHub.
    Featured Skill Kotlin
    Figma
    Scrum
    Agile Project Management
    CI/CD
    Firebase
    Retrofit
    Google APIs
    Git
    REST API
    SQL
    Android SDK
    Android App Development
    Mobile App Development
    Java
  • $20 hourly
    • 5.0/5
    • (1 job)
    I'm a Full Stack Developer specializing in creating robust and user-centric solutions in the financial technology sector. With a versatile skill set that includes Python, React, TypeScript, and Kotlin with Ktor, I bring comprehensive expertise to every project. My approach combines innovative design and backend efficiency, ensuring that every application is scalable, secure, and poised to meet the demands of dynamic financial environments. Driven by a passion for technology and its impact on the financial industry, I strive to build systems that not only meet but exceed user expectations. Whether developing interactive front-ends using React and TypeScript or constructing resilient server-side architectures with Python and Kotlin, my goal is to deliver seamless, intuitive experiences.
    Featured Skill Kotlin
    Jira
    GitHub
    Flask
    Websockets
    API Integration
    Database Management
    Microservice
    Responsive Design
    React
    JavaScript
    Python
  • $25 hourly
    • 0.0/5
    • (1 job)
    Experienced mobile developer specializing in both iOS and Android platforms. I have worked in both outsourcing and product development environments, gaining a versatile skill set. I have a strong understanding of mobile UI/UX principles and best practices. - Proficient in Swift, Objective-C, Kotlin, and Java - Expertise in full project management from start to finish - Always in touch with fast feedback
    Featured Skill Kotlin
    Product Development
    International Development
    CI/CD
    Git
    Firebase
    API Integration
    Java
    Objective-C
    Swift
    Android
    iOS
  • $10 hourly
    • 0.0/5
    • (1 job)
    I’m an Android Developer experienced in creating app for medium-sized businesses. I have experience in Kotlin coroutines, Jetpack Compose
    Featured Skill Kotlin
    Android
    Android App Development
  • $30 hourly
    • 0.0/5
    • (0 jobs)
    I am an Android developer with 3+ years of experience in designing, developing, and optimizing mobile applications. I have a strong background in Kotlin, Jetpack Compose, and modern Android architectures. I am passionate about building high-quality, user-friendly apps and always eager to learn and grow. Throughout my career, I have contributed to a variety of projects, from simple applications to complex, feature-rich solutions. I have extensive experience collaborating with cross-functional teams—including business analysts, UI/UX designers, and backend developers—to deliver seamless and efficient products. I am always eager to learn, adapt, and refine my skills to create impactful mobile experiences.
    Featured Skill Kotlin
    Java
    Android App Development
  • $28 hourly
    • 0.0/5
    • (0 jobs)
    Qualified Salesforce developer with experience in providing software solutions on clouds to clients pertaining to several industries. Proficient in customising the Salesforce environment and integrating CRM with other systems, working on mobile and website applications, developing apps. Understanding business processes, configuration, coding and troubleshooting, communication with customers and working in a team. TECHNICAL SKILLS - Standard Force.com capabilities: Service Cloud, Sales Cloud, Objects, Apps, Tabs, Layouts, Flows, Process Builders, Workflows Rules, Validation Rules, Formulas, Sharing & Visibility - APEX: Classes, Triggers, Controllers; Async Apex: Batch, Future, Queueable and Scheduled jobs; Dynamic Apex, SOQL/SOSL/DML operations, SOQL query optimisations, Custom REST services - VisualForce: Custom components, Custom Controllers and Extensions - Lightning: Salesforce Lightning Design System, Lightning Web Components, Aura Components, Lightning Quick Actions - Languages: Apex, JavaScript, TypeScript, Kotlin - Front-end: JavaScript, Node.JS, Angular, Ionic, JQuery, CSS3, HTML5 - Back-end: Node.JS, Express.JS, Axios.JS, PostgreSQL DB, Sequelize.JS, JSforce, Google Apps Script - Mobile apps: Ionic + Cordova, Kotlin + Android Framework - Project Management Tools: JIRA, Trello, Scrumwise, Rally Agile - Operating Systems: Linux, Windows, MacOS - Other tools: IntelliJ IDEA, Visual Studio Code, ANT Migration Tool, Data Loader, Salesforce Workbench, Android Studio, Git, Git Kraken, Bitbucket, Xray etc.
    Featured Skill Kotlin
    Agile CRM
    Scrum
    Ionic Framework
    PostgreSQL
    ExpressJS
    Angular
    JavaScript
    Salesforce Sales Cloud
    Salesforce Service Cloud
    Visualforce
    Salesforce Lightning
    Apex
    Database Management
    Salesforce
  • $25 hourly
    • 0.0/5
    • (0 jobs)
    I’m a Full Stack Developer with 6+ years of experience building modern, responsive, and scalable web and mobile applications from the ground up. I specialize in creating seamless cross-platform experiences using React, Node.js, Express, MongoDB, and mobile frameworks like React Native and Ionic. From startups to enterprises, I’ve helped clients around the world turn their ideas into powerful digital products. I focus on clean code, user-friendly design, and solid performance — always with a goal of delivering long-term value. 🔧 Core Skills & Tools: Frontend: React.js, Next.js, HTML5, CSS3, Tailwind, Bootstrap Backend: Node.js, Express, REST APIs, Firebase, GraphQL Mobile: React Native, Flutter (iOS & Android) Databases: MongoDB, PostgreSQL, MySQL Authentication: Firebase Auth, OAuth, JWT Deployment: Vercel, Heroku, Netlify, AWS 📱 What I Build: Cross-platform mobile apps (iOS/Android) Responsive web apps and dashboards SaaS platforms and admin panels Custom APIs and integrations Real-time features (chat, notifications, live updates) I bring strong communication, agile development practices, and a deep commitment to timelines and quality. Whether you need an MVP, a production-ready product, or help scaling an existing system, I’m ready to join your journey. Let’s work together to turn your vision into a real, high-performance application — delivered on time and built to scale. ✅ Available for both short-term and long-term projects. Let’s talk!
    Featured Skill Kotlin
    GraphQL
    React
    Expo.io
    Node.js
    API Integration
    Firebase
    Ionic Framework
    Java
    TypeScript
    JavaScript
    Android App Development
    iOS Development
    Hybrid App Development
    React Native
  • $45 hourly
    • 0.0/5
    • (1 job)
    Engineer with 7 years of experience in Full-stack development. Proficient in Agile methodologies, including Scrum and Kanban. Extensive knowledge and practical experience in DevOps, ensuring seamless integration and deployment of applications. Well-versed in design patterns and architectural principles, with a proven track record in microservices architecture and cloud solutions. Experienced with various backend and frontend technologies. A detail-oriented professional with a solid understanding of software development best practices and design principles. Able to work both independently and collaboratively within a team. Programming languages: Java (8, 11, 17), Kotlin, JavaScript, TypeScript, Python, Go. Backend: Spring (Core, Boot, Cloud, Data, Security, AOP), Hibernate, JPA, Temenos T24 Transact, QueryDSL, HTTP, OIDC, REST API, JSON, YAML, ModelMapper, MapStruct, Flyway, Liquibase, Maven, Gradle, JUnit, Mockito, Testcontainers, Swagger, FastAPI, SQLAlchemy, Celery, JasperReports, Gin, Gorm, Logrus, Viper, Testify. Frontend: React, Redux, Piral, Axios, RxJS, Jest, Angular (12, 14, 16), Angular Material, NgRX, Jasmine, D3, Quill, Nodejs, HTML, CSS, Bootstrap. Cloud: AWS (EC2, S3, SQS, SES, EKS, ECR, Lambda, CloudWatch, CloudFront, API Gateway, Load Balancer, IAM, RDS, DynamoDB). Message Brokers: Apache Kafka, RabbitMQ. Databases: PostgreSQL, MariaDB, MySQL, MongoDB, Apache Solr, Neo4j, Redis, Scopus. DevOps: Docker, Docker-Compose, Kubernetes. CI/CD: Jenkins, GitLab CI/CD.
    Featured Skill Kotlin
    Jenkins
    Terraform
    Kubernetes
    Docker
    Neo4j
    Redis
    MongoDB
    PostgreSQL
    Hibernate
    Spring Framework
    React
    Angular
    JavaScript
    Java
  • $3 hourly
    • 0.0/5
    • (0 jobs)
    ✨ Hi there! I’m a developer experienced in building web, mobile, and desktop applications, with a strong focus on clean code and delightful user experience 💖 🚀 Launching a new business or opening an online store? Need a website to showcase your products or a mobile app for on‑demand food delivery? I’m here to turn your idea into reality! 🍔📱 ____________________________________________________________ 💻 Tech Stack & Skills: 📲 Native Mobile Development I build mobile apps for iOS using Swift and for Android using Java/kotlin — fast, reliable, and tailored to your brand and users. Every project is crafted to feel right at home on each platform, with attention to performance, design, and usability. 🌐 Front-End (JavaScript & HTML5): I craft responsive and visually appealing web interfaces using JavaScript, HTML5, and CSS — with a focus on smooth performance, user-friendly design, and compatibility across all devices and browsers. ⚙️ Back-End Development I develop reliable and scalable back-end systems using Java with Spring Boot, Spring MVC, Spring Security, and Hibernate. I create secure RESTful APIs, integrate databases (such as PostgreSQL, MongoDB), set up authentication, logging with Log4j/SLF4J, and ensure high performance of applications. I use modern approaches and tools to make sure your services run smoothly, fast, and are ready for growth. 🚀 Full-Stack Development & CI/CD: Delivering complete end-to-end solutions—from mobile and web development to backend server setups. Experienced with Git for version control. 💡 Optimized & Scalable Solutions: I focus on creating efficient workflows and maintainable code, delivering solutions that save both time and money while ensuring your project is ready to scale as your business grows. 💬 Transparent Communication & Client-Focused Service: With a 100% Job Success Rate and glowing client feedback, I prioritize clear communication and seamless collaboration, keeping you updated and involved at every stage of the project. ____________________________________________________________ Why Work With Me? • 💰 Affordable & Tailored Solutions: I offer competitive rates and flexible pricing to ensure that your project delivers the maximum value for your investment, all while meeting your specific needs. • ⚡ Quality & Timely Delivery: Expect clean, well-documented code and high-performance apps, all delivered within the agreed-upon timelines, ensuring a smooth and efficient process. • 🛠️ End-to-End Full-Stack Services: I manage everything from Android/iOS development (both native and cross-platform) to web front-end and back-end solutions, providing consistent and streamlined communication throughout the project. • 🔄 Long-Term Collaborations: I’m open to long-term contracts (3+ months) for ongoing partnerships, as well as shorter projects that are custom-tailored to your specific requirements and goals. ____________________________________________________________ I care deeply about both how things work and how they feel ✨ Clear communication and attention to detail are my top priorities — let’s stay in touch and build something amazing together! 🌈💬 💫 Ready to turn your idea into reality? Let’s make it happen! 💫 Keywords: Backend Development, Java, Spring Boot, Spring Security, Spring Data JPA, Hibernate, PostgreSQL, MySQL, MongoDB, Maven, Gradle, Docker, CI/CD, Git, RESTful API, GraphQL, RabbitMQ, Kafka, Redis, JUnit, Mockito, Android Development, Java, Android Studio, XML, SQLite, Firebase, Dagger, Koin, MVVM, MVP, Retrofit, OkHttp, Glide, Picasso, JUnit, Espresso, Frontend Development, HTML5, CSS3, JavaScript, ES6, Vue.js, React.js, Tailwind CSS, Webpack, Vite, Git, npm, yarn, ESLint, Prettier, Jest, Mocha, C++, Python, Cross-Platform Development, Mobile Apps, Web Applications, Cost-Effective Solutions, Job Success, Client Satisfaction, Scalable Solutions, Long-Term Engagement.
    Featured Skill Kotlin
    Back-End Development
    Front-End Development
    CSS
    HTML
    SQL
    JavaScript
    C++
    Python
    iOS
    Java
    Android App Development
    iOS Development
    App Development
    Game Design
  • $20 hourly
    • 0.0/5
    • (0 jobs)
    I'm happy to realise your idea into a quality app code and bring profit to your business. I have expertise in: • Creating apps from idea to live working projects. • Creating app architecture, choosing technology stack and libraries. • Publishing and maintaining existing apps on Google Play. • Complying with all Google Play policies and design guidelines. • Implement monetization using purchases and advertising.
    Featured Skill Kotlin
    Dependency Injection Framework
    Coroutine
    Git
    RESTful API
    Room
    Google Play
    Clean Architecture
    RxJava
    Android App Development
    SQLite
    Firebase
    Retrofit
    Android
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