Hire the best Java Developers in Lviv, UA
Check out Java Developers in Lviv, UA with the skills you need for your next job.
- $35 hourly
- 5.0/5
- (18 jobs)
I have experience in making applications for mobile platforms with Unity, as well as native plugins and SDK wrappers for Unity and Unreal Engine.Java
iOS SDKAndroid SDKUnityUnreal EngineiOSAndroidObjective-CC#C++ - $40 hourly
- 4.9/5
- (50 jobs)
Experienced in cross-platform and native mobile apps development, admin panels, dashboards, cloud, IOT solutions, web applications and back-end. My specialization: geolocation and Google Maps / MapBox / OpenStreetMap; VoIP apps for voice and video calls; payment system integration; social network API for authorization; REST API and Database providing; BL/BLE with other devices; chats; machine learning; Application types I have created: tracking and navigation apps with GPS and BL/BLE usage; dating and social network apps; messaging applications; multimedia and entertainment apps; application for cooperation with IOT devices; manufacturing app to work with company's staff and other infrastructure. I try to approach the project solution structurally and uniquely, which allows me to save clients' time. I know that it is very important for customers to be always in touch, so I do not have days off and I try to answer around the clock.Java
UI/UX PrototypingReact NativeAngularAndroidEmbedded ApplicationSwiftFlutterQt FrameworkInternet of Things Solutions DesignQMLC++ - $35 hourly
- 5.0/5
- (7 jobs)
As a senior mobile developer with +8 years of experience, I have developed many native and hybrid mobile apps for versatile industry. My main focus is on hybrid mobile app development using React Native and Flutter. My main domain is E-Commerce, Healthcare, Fitness, Astrology, Travel, Learning and Chatting app. Here are my main technical skills: - Tools and frameworks: React Native, Flutter Java, Kotlin, Swift, Dart, JavaScript, TypeScript Android Studio, Xcode - Cloud Services: AWS, Azure, GCP, Firebase, Shopify - Unit Testing Jest, RNTL (React Native Testing Library) My main expertise: - Optimizing performance Minimizing re-renders using React powerful hook ecosystem like useMemo, useEffect, useCallback with specific dependencies Lazy loading and windowing technology - Implementing various animations Leveraging various animation libraries like React Native Reanimated, React Native Animatable, React Spring, Lottie, Flutter Animator, etc - Various API integration Rich hands-on experience in SSO like Google, Facebook, X, Github, etc and payment integration - Unit Testing I am strongly experienced in creating native modules and native UI threads for React Native and platform specific method channel for Flutter using Java, Kotlin, Swift and Dart. I am also experienced in implementing wallet connections and building NFT platform. I have exceptional problem-solving skill to make the project in steady progress. I am always staying up to date with the most trending technology and method and trying to leverage it. I have a good sense of humor and collaborate with the client and team members very well. I always try best to exceed the client's expectation and deliver the best result before the deadline. - Devices I have: Samsung Galaxy A05F, iPhone 14 Dell Laptop, Desktop I really look forward to working with you and bringing your idea to a real life. Please be with me.Java
API IntegrationHybrid App DevelopmentAndroid App DevelopmentMobile App DevelopmentFirebaseiOSAndroidSwiftKotlinDartTypeScriptJavaScriptFlutterReact Native - $35 hourly
- 5.0/5
- (16 jobs)
🚀 Helping Tech Startups launch MVPs fast, scaling with agility. 🏢 Empowering growing enterprises in 𝐛𝐢𝐨𝐭𝐞𝐜𝐡, 𝐒𝐚𝐚𝐒, 𝐚𝐧𝐝 𝐚𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 with custom solutions. ⏳ Supporting overloaded IT teams to meet deadlines and tackle complex integrations. ✅ A Fullstack developer/Software engineer with 𝟏𝟐 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞, I specialize in Java, Python & JS. I welcome you to my page with a 𝐒𝐩𝐞𝐜𝐢𝐚𝐥 𝐎𝐟𝐟𝐞𝐫: I am offering a 𝟒𝟎-𝐦𝐢𝐧𝐮𝐭𝐞 𝐟𝐫𝐞𝐞 𝐭𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐜𝐨𝐧𝐬𝐮𝐥𝐭𝐚𝐭𝐢𝐨𝐧. Let's discuss how I can help with your project needs. My favorite frameworks and languages: 𝐉𝐚𝐯𝐚, 𝐒𝐩𝐫𝐢𝐧𝐠 𝐅𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤 (Spring Boot, Spring Cloud, MVC, Spring Data, etc.), with production experience in microservices and Docker. Additional Programming Language: 𝐏𝐲𝐭𝐡𝐨𝐧, with a strong affinity for 𝐀𝐖𝐒 𝐬𝐞𝐫𝐯𝐢𝐜𝐞𝐬 like API Gateway, AWS Lambda (Python), DynamoDB, RDS, Kinesis, CloudWatch, and experience in high-load IoT projects. Expertise in 𝐅𝐫𝐨𝐧𝐭-𝐄𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: Proficient in JavaScript, specifically 𝐑𝐞𝐚𝐜𝐭 𝐚𝐧𝐝 𝐍𝐞𝐱𝐭.𝐣𝐬, for building dynamic and responsive web applications. I am comfortable in Linux environments and adept at building CI/CD pipelines. I can support the full development cycle, from product requirements to deployment and service monitoring. In addition, I have 5+ years' experience as a Team Leader. I am also in the 𝐭𝐨𝐩 𝟑𝟎% 𝐨𝐟 𝐒𝐭𝐚𝐜𝐤𝐎𝐯𝐞𝐫𝐟𝐥𝐨𝐰 users, with most answers related to the Spring framework. Links to my profiles are available below. Please contact me to benefit from the technical consultation and see how my skills and experience can benefit your project.Java
Data ScrapingHTMLCSSFlaskREST APIWeb ApplicationWeb DevelopmentNext.jsReactSpring BootSpring FrameworkAmazon Web ServicesSQLPythonJavaScript - $45 hourly
- 5.0/5
- (23 jobs)
"⭐️⭐️⭐️⭐️⭐️ Recommended. Always fast, efficient and always open to discussion. The assigned tasks were performed at a high level. It was easy to find common ground..." I am Top-Rated Full Stack Developer with 10 years of experience in Web/Software development. I do development, designing, debugging, covering with tests, analytics of architecture, finding the best solutions for your needs, increasing performance, finding solutions, team-leading, and managing teams of up to 10 people. I was working on various projects and different roles. I am great as a standalone developer and also perfect as a team player. I worked with 90+ Clients Across Various Platforms 🏆🔥 I am proficient in: Font-end ✅ HTML/HTML5 ✅ CSS/CSS3 ✅ JavaScript ✅ Jquery/Ajax ✅ JSP ✅ AngularJS/Angular2+ ✅ React ✅ Bootstrap ✅ FontAwesome Databases ✅ MySQL ✅ PostgreSQL ✅ MS Access ✅ MSSQL ✅ OracleDB ✅ MongoDB Application/Web Servers ✅ Apache Tomcat ✅ NGINX Programming Languages/ Technologies ✅ Java ✅ TypeScript ✅ JavaScript ✅ Software Architecture Design ✅ UML ✅ Reverse Engineering ✅ Design Patterns ✅ JDBC ✅ RMI ✅ Maven ✅ JSP ✅ Servlets ✅ Web Services ✅ JPA ✅ DataSource ✅ DBCP ✅ Rest ✅ SQL ✅ SpEl Frameworks ✅ Spring ✅ Spring Security ✅ Spring MVC ✅ Hibernate ✅ JPA ✅ Spring Data ✅ Spring Oauth2.0 ✅ EJB ✅ JUnit Development Tools ✅ Eclipse ✅ NetBeans ✅ IntelliJ idea ✅ Git Bash ✅ SmartGit ✅ Visual Studio Code ✅ Sublime Text Editor ✅ JUnit/ Log4J If you are looking for a developer who can deliver the highest quality code, facilitate easy and comprehensive communication, engage in detail-oriented programming, and ultimately satisfy the customer, you have found the right person. Looking forward to our cooperation! Best, Oleg.Java
HibernateKubernetesSaaS DevelopmentWeb Development ConsultationApp DevelopmentAWS DevelopmentWeb DevelopmentBack-End DevelopmentFront-End DevelopmentSpring BootSpring FrameworkAngular - $30 hourly
- 5.0/5
- (6 jobs)
Hello! I'm passionate about AI solutions that solve today’s challenges in innovative ways. With experience in software development, testing, and building Alexa skills, I’ve witnessed how AI can solve problems, boost efficiency, and help businesses succeed in a fast-changing world. What I Offer : - Custom AI Development - ChatGPT Chatbots - Machine Learning & Data Analysis - Consultation & Strategy Expertise: - AI Integration: I specialize in integrating AI services into existing infrastructure, making systems smarter and more efficient. Java: My proficiency in Java allows me to create scalable, and high-performance AI solutions. LangChain: I have a strong foundation in LangChain, an emerging technology that enables to build AI solutions that can understand and process human language. Alexa Skills: Architecture and design Alexa skills, Amazon Alexa Skills Development IoT: IoT Projects and integration Maintenance: Update and support existing skills Frameworks: - LangChain - OpenAI - LLaMA, - Palm - Redis - Alexa skill kit - Alexa conversation - Java - Python - APL Contact me today to discuss your project, and let's jump on a journey to transform your business through the magic of voice and AI.Java
Artificial IntelligenceNatural Language ProcessingConversational AIAI ConsultingAI Agent DevelopmentLLaMAChatGPTLangChainAI ChatbotChatbotPythonAlexa Skills KitAWS LambdaAWS Application - $40 hourly
- 5.0/5
- (2 jobs)
✅ 9 years of overall programming experience. 🎓 Master's degree in Applied Mathematics. Specialized in: 💎 Web Development 💎 Mobile Development for iOS / Android / Cross-platform 💎 Desktop Development for Windows 💎 UI / UX Design 💎 VR & AR Development using Unreal Engine / Unity 3DJava
Xamarin.NET CoreMicrosoft AzureMongoDBC#jQueryASP.NET MVCMySQLJavaScript - $35 hourly
- 5.0/5
- (16 jobs)
If you have an Idea, I can change your Idea to an Awesome App! Hello, I am a professional Android native app developer. I am having 6+ year of experience developing native android apps. I always use "Best Practices & new technologies" in my practice. Please note an important point. In addition to the quality application, the product of my activity is a very high quality code. In my work, I use most of the known patterns (MVVM, MVP/MVC, etc.), which in turn extends the life of your project for many years to come. Thus, it greatly simplifies the maintenance of the project or the addition of new functionality in the future. Your android apps will be made using following tools/technologies: Android Studio Kotlin/Java ( whichever you want ) Jetpack Compose Navigation component Other of the tools you can see in the tab "Mobile App Development" . I can also provide advice for your ideas. My hourly rates are not accurate. Because the real price may depend on your needs, time and resources.Java
TrelloJiraConcurrent Versions SystemXMLAndroid SDKRESTful ArchitectureIn-App AdvertisingAndroidAndroid StudioKotlinRetrofitNative App Development - $40 hourly
- 5.0/5
- (8 jobs)
I specialize in outsourced projects, from developing applications from scratch, adding new features, and debugging, to testing, bug fixing, refactoring, troubleshooting, and providing customer support. With a keen eye for detail and a passion for problem-solving, I'm dedicated to delivering high-quality work on time and within budget. Let me help bring your project to life! Skills ✅ Programming Language: Java and Python ✅ Technologies: Spring Framework, Hibernate ✅ Cloud: AWS(EC2, Open Search, Lambda, Elastic Beanstalk, S3), Google Cloud ✅ Database: MySQL, PostgreSQL, Oracle DB, MongoDB ✅ Testing: JUnit, Mockito, PowerMockito, JMockit ✅ VCS: Git (GitHub, GitLab, Bitbucket, Gerrit) ✅ Build tools: Maven, Gradle ✅ Operating Systems: MacOS, Windows, Linux ✅ Agile methodology: Scrum ✅ IDE: IntelliJ and Eclipse ✅ Tools: Postman, Swagger, Atlassian products, Redmine My strengths include: - developing web services using a micro-service architecture and creating RESTful services - collaborating with international teams through Scrum methodology - excelling in both team-oriented and individual projects - passionate about exploring new technologies and seeking challenging work with a team of professionals. Don’t hesitate to contact me.Java
Node.jsSmartphoneAndroid App DevelopmentMobile App DevelopmentAmazon EC2HibernateMySQLAmazon S3PostgreSQLiOSAndroidSpring BootPythonReact - $35 hourly
- 4.8/5
- (6 jobs)
Hello there! If you’re looking for a reliable Senior Android developer, you are on the right page. I'm a seasoned Android developer, crafting reliable, fast, and top-notch apps. Global projects across varied domains have honed my skills and enriched my tech arsenal. 🛠 Key skills: 📎 Kotlin & Java: My trusty languages. 📎 Android SDK & Jetpack: Foundation of my work. 📎 SQL, Rxjava, Retrofit2: Tools for data and communication. 📎 Firebase & Git: Ensuring smooth workflow. 📎 MVVM, MVP: My guide for structuring apps. 📎 Design Patterns, In-app Billing, Google Maps: Enhancing user experience. 🤝 I value clear, SMART communication and deadlines, making teamwork a breeze. Ready to dive into new challenges and eager to learn, so drop me a line with your requirements. Let's create digital wonders! 📲 _____________________ * Need a wider range of services? No worries, you are on the right path anyway. I'm working in association with the 90-person-strong TOP Rated Plus Agency - PECODE. You can count on us if you need experts in UX/UI design, Mobile app development, Quality Assurance ( manual & automation). We will support you at each stage of development: 🥇 Before the start we provide you estimates based on project requirements analysis and specification 🥇 Take care of the web product's development from needs to production 🥇 Support and improve the product after realise. Since 2017 we bring client's ideas into reality, and we are looking forward to starting the collaboration with you!Java
Google PlayGitRxJavaDagger 2Android SDKAPI IntegrationMap IntegrationSmartphoneTabletKotlinLocation-Based ServiceAndroid App DevelopmentUser AuthenticationNative App Development - $45 hourly
- 5.0/5
- (3 jobs)
My name is Pavlo Nazarkevych. I am Senior Android Developer with a 5+ years of experience in software development, Java/Kotlin (Android) Mobile development, multi-threading and Android NDK. My Technical Skills: 📌Languages: Java, Kotlin 📌Build: Kotlin, Gradle 📌SCM: Git, Github, Gitlab, Bitbucket 📌Mobile: Android, Android (NDK, SDK) My Technology Stack: 📌Dagger2, Koin, Hilt 📌RxJava2, Kotlin Coroutines, Flow 📌Realm, Room, SQL 📌Retrofit2, Apollo 📌MVP, MVVM 📌Clean Architecture 📌Mockito, Mockk, JUnit, Espresso 📌Here SDK 📌OpecCV, Google Vision 📌Firebase(Analytics, Realtime Database, Cloud Database, Push Notification) 📌Android Jetpack(Compose, DataBinding, AndroidX, Room, Navigation, WorkManager, LiveData, ViewModel, Material Design). My personal qualities: 📌responsible 📌reliable 📌hard-working 📌multi-tasking 📌self-motivatedJava
GitAndroid SDKAndroid NDKGradleAndroidAndroid App DevelopmentFirebaseMobile App DevelopmentKotlin - $50 hourly
- 5.0/5
- (8 jobs)
Innovative mobile(iOS & Android) developer with 8+ years of experience programming and coding mobile applications while streamlining modifications to ensure optimal performance. I enjoy team collaboration, hard work, and exceeding business goals. I love to tackle complex challenges and create intuitive and easy-to-use solutions. I strive for simplicity over complexity and look for ways to avoid unnecessary technical debt. I like to make things better than I found them. I love to create and manage documentation and love code commenting. Performance, scalability, and user experience are always at the forefront of my thinking. I have been instrumental in the design, development, and maintenance of many B2B and B2C apps within various industries including .com, advertising, financial, entertainment, agriculture, travel, healthcare, pharmaceutical, point-of-sale, restaurant, and retail. TECHNICAL SUMMARY: Languages: Swift, SwiftUI, Objective-C, Java, Kotlin, Dart, JavaScript, TypeScript, C# Technologies: XCode, Android Studio, Test Flight, Flutter, React, React Native, Node.js, Docker, Xamarin, Ionic, Cordova, Angular, jQuery, AJAX, HTML, CSS, Bootstrap App Testing: Jest, Unit Testing, App Center Databases: SQL Server, MongoDB, Postgres, MySql, Redis, Graph, Neo4j API: Google NLP, Facebook, Cloudinary, Twilio Design Patterns: Singleton, Factory, Observer, Command, Strategy, Mediator, Visitor, Composite, MVC, MVVM Team Collaboration: Jira, Asana, Trello PM Methodologies: Agile, Scrum, Waterfall, Kanban, Daily Stand Ups, Sprint Planning CI/CD: Docker, Jenkins, App Center, Bitbucket, Git, GitHub Cloud: Firebase, Google Cloud, Azure, AWS, S3, EC2, Elastic Beanstalk, Lambda, Alexa, RDSJava
JavaScriptAmazon Web ServicesReact NativeFirebaseTypeScriptFlutterAndroidiOSDartGitMobile App DevelopmentSwiftNode.jsKotlin - $40 hourly
- 5.0/5
- (4 jobs)
I specialize in web application development, bringing extensive experience in Java (> 8 years) and Angular/React (> 3 years). What I provide: - API development with microservices; - Software architecture. Design of applications from scratch; - Implementation of high-load services providing high observability; - Solutions to address challenges related to scalability, maintainability, and security; - Performance optimization, fix slow segments, refactoring and data migrations; - Apply Agile practices to effectively organize work; and more. Expertise in (not only): • Fintech: payment integrations, trading, etc. • eCommerce • KYC • Healthcare • Administration systems • BigData TECHNICAL SKILLS - Programming languages: Java, Scala, JS, JQuery, Angular (typescript); - APIs: REST, MVC, Graphql, WebSocket, etc; - Databases: PostgreSQL, MySQL, Netezza, Oracle; MongoDB; - Microservices: Spring Boot, Spring WebFlux, Docker, Hibernate, Spring Security, Kafka, RabbitMQ; - Version Control Systems: Git; - Testing: JUnit, Mockito, Cucumber, LocalStack containers, Selenium; JProfiler, JMeter; - Cloud: AWS (S3, SQS, EC2, Lambda, Cognito, CloudFormation, ECR, EKS, AWS Console), GCP (Pub/Sub, Storage, GKE); - Software architecture. - Other: Maven, Gradel, Jenkins, Docker, K8s; Apache Spark, HDFS;Java
CucumberKubernetesDockerAngularGitGraphQLRESTful APISoftware ArchitectureAmazon Web ServicesHibernateSQLApache KafkaMicroserviceSpring Boot - $50 hourly
- 4.8/5
- (15 jobs)
I am a senior mobile app developer with over 8 years of experience. I have been working on mobile app programming since I graduated university. Swift, Kotlin, Java, React Native, Flutter are my main skills and I have worked on a lot of large scale projects before. Now I have enough good skills and experience, so that I am confident on most various kind of mobile apps development. I work full time and I am very diligent. Through the app development, I hope to scale your business and make you to get more revenue.Java
.NET CoreSpring BootMobile AppMySQLMongoDBKotlinPHPJavaScriptiOSAndroidNode.jsReact NativeFirebaseSwift - $49 hourly
- 5.0/5
- (19 jobs)
I am a professional who combines coding, automation, and system administration skills to streamline software delivery and ensure the reliability and stability of the systems they work on. Here's a brief overview of my career Role and Responsibilities: Design, develop and maintain the infrastructure and tools needed for continuous integration, deployment, and monitoring of software applications. Work collaboratively with development and IT operations teams to build and deploy high-quality software. Automate the deployment and release process to reduce the time and effort required to bring new features and bug fixes to production. Monitor and troubleshoot applications to identify and resolve issues proactively. Manage and maintain the configuration of systems, networks, and servers to ensure security, scalability, and reliability. Implement and manage infrastructure as code using tools like Ansible, Chef, or Puppet. Implement and manage containerization technologies such as Docker and Kubernetes. Ensure compliance with security and regulatory requirements by implementing security controls and policies. Evaluate and recommend new technologies to improve the efficiency, performance, and scalability of systems and processes. Education and Skills: A bachelor's degree in computer science, software engineering, or a related field is typically required. Knowledge of programming languages such as Python, Ruby, or Java is essential. Understanding of DevOps methodologies and tools such as Git, Jenkins, Ansible, Chef, Puppet, Docker, and Kubernetes. Knowledge of Linux operating systems and command-line tools. Familiarity with cloud computing platforms such as AWS, Azure, or Google Cloud. Strong problem-solving and analytical skills. Ability to work collaboratively with cross-functional teams and communicate effectively.Java
Django StackChatGPTDevOpsAutomationWeb ScrapingYAMLGitHubDjangoGitLabDockerBitbucketPythonC#Automated Deployment Pipeline - $50 hourly
- 4.6/5
- (4 jobs)
I am Bohdan from Ukraine. I am here to look for long term project. Thank you. - Desktop, low level driver, Andriod app - Windows Presentation Foundation (aka WPF). - VPN, Proxy, Networking (from raw TCP(UDP)/IP to HTTP web-services, Wifi ), PRTG, CISCO. - Video / Audio streaming over the network using LIBVLC, FFMPEG, GSTREAMER.Java
GolangRustAPINetwork AnalysisTCP/IPNetwork SoftwareKotlinPython.NET FrameworkQt FrameworkDelphiC#C++ - $35 hourly
- 5.0/5
- (2 jobs)
Welcome Everyone I am very excited to have opportunities of bringing your great idea to the wonderful live with perfect product here. I have worked on mobile application development part for 5 years and I have great experienced in this area. My skills - Swift, SwiftUI, Objective-C - Kotlin, Java - Typescript, Javascript - Mysql, DynamoDB, MongoDB - MVVM, MVC - Firebase, GraphQL I will provide - Trust and Honest Partnership - High Quality Product with Bug Free - Clean, Robust, Modular Project - On time Deliver, Communication - Agile software,Jira, Git, BitBucket - Full Time and Long Term Position I will always be available to discuss and work with you. Happy to reach me out. Thank you very much Best Regards Marian IlkivJava
TypeScriptReact NativeSmartphoneKotlinJavaScriptiOSAndroidSwiftObjective-CGraphQLFirebase - $40 hourly
- 5.0/5
- (8 jobs)
Experienced full-stack blockchain developer with a strong background in building dApps and smart contracts using Ethereum and other blockchain platforms such as Solana, Polkadot and Tron. Strong understanding of Web3, Hardhat, Truffle and other blockchain development tools. Proficient in Javascript, Solidity, Rust and C/C++. Strong algorithm design and optimization skills. Proven ability to lead development teams and work in Agile environment. Passionate about using blockchain technology to solve real-world problems ind improve existing systems Technical Skills - Proficient in: C++, Python, Solidity, Rust, Web3.js, Hardhat, Truffle, Anchor, Substrate, Cosmos - Competitive programming, strong algorithm design and optimization - Experience with: EVM-compatible L1/L2 chains, Tron, Polkadot, Solana - Other skills: Blockchain architecture, MERN, Laravel, VueJava
Data ScrapingTelegram APIWeb3LinuxSmart ContractSolanaMERN StackAlgorithm DevelopmentBlockchain ArchitectureLAMP StackBlockchainSolidityRustC++ - $40 hourly
- 5.0/5
- (1 job)
Thanks for reading my profile. I am a senior full stack developer for 9+ years. I studied from traditional OOP languages, such as C#/Java to Functional languages, JS, Ruby and Python. In company positions, I focused to development very secured platforms and writing unit testable codebase. I have very strong knowledge of SQL/NoSQL databases like Oracle, PostgreSQL, MySQL, MongoDB, AWS DynamoDB and so on. I am also an active user of AWS cloud services for deployment and CI/CD. Frontend: React.js(Next.js, Gatsby.js), Angular, Vue.js Backend: Java spring boot, Typescript Node.js(Nest.js), PHP laravel, Ruby on Rails Architecture: Microservices, Messaging protocol(Kafka) Database: Oracle, PostgreSQL, MongoDB, AWS DynamoDB, Redis DevOps: Jenkins, Docker, Kubernets, AWS services, ECS/EKS/EC2/API gateway/Lambda I am open to learn any new technologies. I will deliver perfect result to you.Java
Angular.NET CoreNext.jsReactNode.jsMicroserviceASP.NETAPIAWS LambdaMongoDBLaravelKubernetesPostgreSQLSpring Boot - $45 hourly
- 5.0/5
- (14 jobs)
My name is Roman I'm a Backend Developer with a passion for creating high-performance, secure, and reliable backend solutions. I specialize in designing and building custom backend systems for web and mobile applications. My expertise lies in developing REST APIs, integrating with databases, and designing server-side architecture. I'm comfortable working with a wide range of technologies, including Node.js, PHP, Python, C#, Ruby, Java, MySQL, MongoDB, PostgreSQL, and AWS, Microsoft Azure. I'm also experienced in creating automated processes and DevOps tools to streamline development cycles. I'm passionate about creating innovative solutions to complex problems, and I'm always looking to improve my skills and stay up-to-date with the latest trends.Java
Node.jsSwaggerDevOpsAWS AmplifyAzure DevOpsDockerMongoDBPostgreSQLOracle DatabaseMySQLRESTful APIC#RubyPython - $50 hourly
- 5.0/5
- (4 jobs)
👋 Welcome to my Upwork profile! I'm Yurii Manyshyn, a highly experienced Senior Full Stack Developer with a passion for creating innovative web and blockchain solutions. With a proven track record spanning over many years, I bring a wealth of expertise in a wide range of technologies to help businesses thrive in the digital world. 🌟 **Skills and Technologies** 🌟 ✅ **Front-End Development:** I excel in crafting stunning and user-friendly web interfaces using modern front-end technologies. I'm a stickler for responsive design, ensuring a seamless user experience across all devices. React.js/Next.js Angular v7+/Ionic Vue/Vue3/Nuxt2/Nuxt3/Quasar HTML5/CSS3/Jquery/ExtJS/JQxWidget/ Google MAP/ArcGis OpenCart/Magento2 ✅ **Back-End Development:** My proficiency in Node.js, Python, and Ruby on Rails allows me to build robust server-side applications that are highly scalable and performant. I can design APIs, manage databases, and handle server-side logic with ease. Node/ExpressJS/Nestjs Python/Django/Flask/FastAPI PHP/Laravel/CI/CakePHP Ruby/Ruby on Rails 7 Java/Java Spring boot/Struts2 C#/.NET ✅ **Blockchain Development:** I'm well-versed in the intricacies of blockchain technology, having worked extensively with Ethereum, Binance Smart Chain, and other leading platforms. I can develop smart contracts, decentralized applications (DApps), and integrate blockchain solutions into your projects. Solidity Rust Defi/Dapp Smart Contract Ethereum Polygen ERC20/ERC721 ✅ **Web3 Integration:** Web3 technologies are changing the way we interact with the internet. I have a deep understanding of Web3 concepts and can help you integrate blockchain functionality, NFTs, and decentralized finance (DeFi) into your applications. Web3.js Thirdweb NFT minting/staking ✅ **DevOps:** Ensuring smooth deployment and continuous integration is crucial. I have experience with tools like Docker, Kubernetes, and Jenkins, and I can set up robust CI/CD pipelines for your projects. Docker Kubernetes Jenkins Git/Github/GitLab/Bitbucket AWS/AWS EC2/S3 Bucket/AWS web hosting Herouk/Vercel CI/CD ✅ **Database Management:** From SQL to NoSQL, I'm comfortable working with databases like PostgreSQL, MongoDB, and MySQL, optimizing data storage and retrieval for optimal performance. Oracle 11g Oracle netsuite PostgreSQL MongoDB MySQL Sqlite MS SQL/ Red Gate data masking Apache solr 🤝 **Why Choose Me?** 🤝 ✓ **Experience:** With a strong background in software development, I've successfully completed projects for clients from diverse industries. ✓ **Communication:** I believe in transparent and prompt communication, ensuring you're always in the loop about project progress. ✓ **Quality Assurance:** I'm committed to delivering clean, efficient, and bug-free code, along with comprehensive testing. ✓ **Adaptability:** Technology evolves, and so do I. I stay up-to-date with the latest industry trends to provide the best solutions for your needs. 💼 **Let's Discuss Your Project!** 💼 Whether you have a specific project in mind or need guidance on how technology can boost your business, I'm here to help. Feel free to reach out, and let's schedule a conversation to explore how my expertise can benefit you. Together, we can turn your vision into reality.Java
Python ScriptMagento 2Apache SolrArcGISSolidityBlockchainDjangoAngularVue.jsReactPHPRuby on RailsPythonNode.js - $35 hourly
- 5.0/5
- (5 jobs)
With a rich 15-year background in mobile development at KeenEthics, IT Craft, and Sirin Software, I've meticulously crafted over 50 innovative applications. Proficient in React Native, Swift, Java, Kotlin, Vue.js, AngularJS, Node.js and Spring, I've championed CI/CD pipelines and TDD/BDD methodologies within large teams, ensuring seamless integration and delivering high-quality, test-driven mobile experiences. I am good at cloud platforms including AWS and GCP.Java
MySQL ProgrammingRuby on RailsIonic FrameworkApache CordovaOpenAI APIKotlinObjective-CSwiftUISwiftFlutterFlowFlutterReact NativeJavaScriptReact - $35 hourly
- 5.0/5
- (2 jobs)
Over the last years, I was developing a wide range of rich web applications using modern technologies like Java, PHP, Javascript, HTML, CSS and MySQL.Java
Database ModelingWindows API DevelopmentAngular 2TypeScriptC#CSSNode.jsC++JavaScript - $40 hourly
- 5.0/5
- (24 jobs)
Dreaming about a leading digital product or a game-changing mobile app, but lack the development muscle to bring it to life? You just found your software development partner. As a tech lead at ArtCodeVision, we specialize in scaling your in-house team with top developers or taking your entire project from concept to completion. Services we provide: 🔸 Custom software engineering 🔸 Software Development 🔸 Project Management 🔸 Team extension 🔸 Web/Mobile development 🔸 API Development 🔸 Application Development 🔸 MVP Development 🔸 Data Migration and Integration Services 🔸 Cross-Platform Integration For more than 10 years of experience I deliver exceptional results across development team leadership, high-performance architecture, and robust data security. Projects I managed engaged 8,000+ new users in 2 months and 90% reduction in system complexity 🏆 My focus: 🔹I prioritize accurate timelines and budget forecasts, keeping you informed throughout the development process. 🔹Timely and clear communication is key. You'll receive regular updates from both me and your dedicated development team. 🔹I leverage benchmarks, experiments, and real-world metrics to select the most effective tools and patterns for your project. This ensures optimal performance and avoids trendy or overhyped solutions. Let's connect and discuss how we can help you achieve your software development goals!Java
TypeScriptNext.jsReact NativeReactNode.jsMySQLAPIJavaScriptProduct ManagementSoftware Architecture & DesignNetwork SecurityNestJSAPI IntegrationRESTful Architecture - $38 hourly
- 5.0/5
- (2 jobs)
-- Good Services : - Mobile (iphone/android) App/Game & Web App Wizard - Clean Maintainable Code - Guarantee Results - Long Term Relationship - Reasonable Price Hi, Thanks for your checking my profile. I've been developing native iOS/Android apps and Games for over 8 years. I work as individual in full time and long term. Actually I can help you perfectly for mobile app development as an developer. --- Talented My Skills -- iOS/Android app with API development - Native Platform(Android/IOS) - Hybrid app(IONIC) - Backend API building & Admin Panel -- Web Programming - CodeIgniter, Laravel,cakePHP - PHP - JavaScript(Angular/React/Node) - Database(Mysql/SQLite/Oracle/MongoDB) -- Game Programming - Unity3D - Cosos2D/x At this time, Please give me your chance only once! I will finish your project within a short time and high quality. And then Never i will disappoint your expect and give up for your project development until you satisfied! Thanks for your time!Java
MySQL ProgrammingHTMLiOS DevelopmentPHPIonic FrameworkAndroidObjective-CSwift - $35 hourly
- 5.0/5
- (34 jobs)
I have 7+ years of experience in software development. I have an understanding and knowledge of the object-oriented approach, software engineering principles, and concepts. I have taken part in software development projects with 5-6 team members, including code refactoring and optimization. I have mainly worked with: JavaEE, Oracle, MySQL, XML, JSP, Servlets, Spring, Hibernate, JUnit, JDBC, Angular, JavaScript, Node.JS, React, HTML, CSSJava
SeleniumWeb DevelopmentCSS 3HTML5Spring FrameworkAngularJSNode.jsHibernateJavaScript - $33 hourly
- 4.9/5
- (34 jobs)
Java Tech Lead, 12+ years of experience 🥇 2016-2019 Top Rate on Upwork Delivered 30+ applications to the market for clients from the USA, Western and North Europe. My expertise: ✅ Java main stack: Java8/Java11/Java17, Spring Boot, Spring Security, Spring Data, JPA/Hibernate ✅ Java libraries: JUnit/Mockito/PowerMock, RestAssured, Lombok, JMH ✅ Databases: MySQL, PostgreSQL, MariaDB, SQLite, MongoDB ✅ DevOps: Linux, Docker, DockerHub, Apache Maven/Gradle, Jenkins, Jenkins pipelines, SonarQube, SonarRunner, DigitalOcean, AWS ✅ REST APIs: design, development, documentation (swagger) ✅ Have experience in front-end application delivery: Vue.js-based and React.js-based ✅ CryptoTrading: Binance/Bitfinex/Kraken APIs My achievements: ✅ Developed an application for one of the customers that generate ≈$50K of profit every month ✅ Reduced the DevOps price on one of the projects from ≈$10K per month to several hundred dollars ✅ Increased team size from 1 to 5 people for a few customers based on their needsJava
CryptocurrencyDevOpsJenkinsJavaScriptVue.jsDockerSpring FrameworkSpring SecuritySpring Boot Want to browse more freelancers?
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