Hire the best Java Developers in Karachi, PK
Check out Java Developers in Karachi, PK with the skills you need for your next job.
- $31 hourly
- 5.0/5
- (38 jobs)
Greetings! 👋 I'm a seasoned full-stack engineer with over 10 years of hands-on experience in crafting robust and scalable solutions. My diverse skill set spans various frontend and backend technologies, ensuring end-to-end proficiency in bringing your projects to life. Frontend Magic ✨: ✅ Vue JS, React JS - I've seamlessly integrated these frameworks to create captivating user interfaces that engage and delight users. Backend Brilliance 💻: ✅ Django, Python, Node JS - My backend expertise ensures the foundation of your application is secure, efficient, and adaptable to future enhancements. AWS Aficionado ☁️: ✅ Serverless Lambda's, LightSail, S3 Buckets, EC2, CloudFront, RDS, Route53 - I navigate the AWS landscape with ease, leveraging these services to optimize performance and scalability. Testing Virtuoso 🧪: ✅ Selenium - Ensuring the reliability of your applications through meticulous UI testing. API Integration Maestro 🔗: ✅ OpenAI, Twilio, Mixpanel, Airtable - Extensive experience integrating third-party APIs to enhance functionality and bring dynamic features to your projects. Containerization Guru 🐳: ✅ Docker - I utilize containerization to streamline deployment and enhance the portability of your applications. API Architect 🌐: ✅ REST, GraphQL - Crafting APIs that seamlessly connect and power your applications, providing a smooth and efficient user experience. Automation Maestro 🤖: ✅ Proficient in automation, I bring efficiency and reliability to your development processes. Database Dynamo 📊: ✅ Hasura, MySQL, PostgreSQL - Proficient in designing and optimizing databases to meet the specific needs of your application.Java
FlutterAPI DevelopmentDjangoNode.jsReactAutomationVue.jsAndroidPHPJavaScriptWordPressHTML5DartMySQL - $40 hourly
- 5.0/5
- (38 jobs)
🥇 Total 5+ years of experience as a Full-stack Developer 💯 1 hours of response time with 100% Client Dedication! 🕛 Full Time Availability 👋Hey, Are you looking for an Expert Android Engineer? you are at the right place. I have a strong and deep understanding of Android SDK, Coroutines, MVVM, Retrofit, Room Database, and Android Mobile Applications. I'm an independent freelancer. I'm a Native Expert Android Engineer with 6+ years of experience developing all types of mobile applications using Kotlin and Java. I have experience in Dating, healthcare, Social, e-Commerce, education, etc kind of applications in Android. I have vast experience of developing websites and apps for various industries, including dating apps, fintech, social networking sites, health and wellness programs, taxi booking, food delivery, chats, messengers, audio/video chats, and sports and fitness apps. ► Excellent knowledge of Android/Java/Kotlin best practices and standard code style ► Experience with SCM tools, GIT, JIRA, Android Studio, ClearCase, etc. ► Strong skills in problem-solving and time management ► Knowledge of testing mobile applications ► Software platforms development experience, such as Linux and Android platform ► Familiar with the Android development toolkit and process. **MY TECHNICAL ABILITIES YOU CAN GET ** ✅ iOS and Android: Swift, Xcode, Kotlin, Java, Objective C, Android Studio ✅ React Native, Flutter, Ionic, React, XML, Redux ✅ Design and development of mobile apps for iOS and Android using Firebase, Hybrid Apps, and TypeScript ✅ Payment Gateways: WorldPay, PayPal, Apple Pay, Google Pay, Stancer, Stripe, 2Checkout, Adyen, Payline, Skrill and Braintree ✅ App Deployment on Google Play Store, IOS store and also on third party store as well ✅ Push Notifications, Payment Gateways, AWS, Analytics, Ads, Firebase, and React Native Expert ✅ Back-end API development with ASP.NET CORE, Node, Python, Django, PHP and Laravel Framework I have a proven track record of working effectively in both large teams and one-on-one with clients. I can assist you in creating websites and apps from scratch, taking your ideas and turning them into reality. I'm a reliable partner in your project's journey, and I'm dedicated to achieving your goals. For me is important to perform quality work for the client, I treat each project as my own because their success fuels mine's. When I’m working on a project, I don’t want just to meet deadlines. Rather, I prefer to complete the project well ahead of schedule. 𝐖𝐡𝐲 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞: 🚀 Great Work Ethic: I'm dedicated to doing top-quality work on every project. 🚀 Innovative Solutions: Provide innovative and impactful solutions to challenges. 🚀 Transparent Communication: Clear and open communication, utilizing platforms like Slack, Discord, Telegram, Skype, Jira, Trello, Asana, or ClickUp for timely updates. 🚀 Quick Learner : Quickly adept and master new frameworks, ensuring seamless integration into your projects. 🔷 READY TO TALK: 🕒 Schedule I'm here to discuss your project anytime, whether in writing or via voice or video calls. 💬 Availability I'm available 24/7 because your satisfaction matters most. Yes, even on Sundays. 📩 Reach Out Message me anytime, anywhere, and I'll get back to you ASAP. Let's chat about your project whenever you're ready.Java
App DevelopmentUI/UX PrototypingGoogle PlayBug FixKotlinFlutterAndroid StudioMobile App DevelopmentUser AuthenticationIn-App PurchasesAndroidAndroid App DevelopmentiOSNative App Development - $40 hourly
- 4.9/5
- (23 jobs)
✅ I am a modern full-stack cloud developer and architect with over a decade of experience in developing dynamic applications using MERN Stack and static content with JAMstack together with Infrastructure as Code (IaC). ✅ I have developed the front-ends for SaaS and mobile applications, as well as extremely scalable and fault-tolerant back-ends using AWS serverless and cloud native technologies using the event-driven architecture. ✅ Use AWS CloudFront as a Cloud Delivery Network (CDN) and Contentful as a headless Content Management System (CMS). ✅ Use lambda functions and containers and Fargate for serverless compute service. ✅ Have developed APIs supporting both RESTful OpenAPI and GraphQL specifications. ✅ For databases, I have experience in using key-value (DynamoDB), document (MongoDB), relational (Aurora Serverless), and graph (Neptune) databases. Have developed streaming data solutions with Kinesis. ✅ For advanced serverless orchestration, I have used AWS Step Functions and AWS EventBridge for integration. ✅ Use GitHub Actions for developing CI/CD pipelines. In addition, I am a big proponent of Test Driven Development (TDD). ✅ Chainlink 2021 Fall Hackathon Grand Prize Winner ✅ Chainlink 2022 Spring Hackathon NFT and Gaming Prize Winner ✅ Polkadot Hackathon: North America Edition 2022, Community Choice award and Moonbeam DeFi Prize Winner ✅ Have acted as liaison among teams, clients, users, stakeholders, and external parties to get projects from idea to deployment. ✅ Have taught the latest state-of-the-art front-end and cloud technologies to thousands of students/developers free online and onsite. I have worked with multiple startups like PIAIC, Luxury Presence, OpenPD, Cloudspot, Weathtab, Ubookr, Nobly, Produck, PM Toolbelt, Esox.ai, Twirll, Indigenous.io, hepmd, Workplace Arcade, Ghostmail on Upwork, Elance and Freelancer. I have cleared Upwork Skill Certification for Front-end Development I have command over following technologies: ✔️ Javascript, Typescript, Java ✔️ Next.JS ✔️ MERN Stack: NodeJS, ReactJS, Mongodb, Express, Mongoose ✔️ Redux, Storybook, Gatsby, React Native, React-router, fromsy, redux-thunk, redux toolkit, Material UI ✔️ AWS: AWS CDK, AWS Cloud Front, AWS Lambda, AWS Fargate, API Gateway, AppSync, AWS EventBridge, Kinesis Data Streams ✔️ Docker, Google Cloud Run ✔️ MySQL, Mongodb, DynamoDB, Aurora Serverless Relational DB, Neptune Graph DB ✔️ SQL, Gremlin Graph Traversal Language ✔️ GitHub Actions ✔️ Command over converting PSD to pixel perfect HTML A bit more about myself, I have extensive educational background in computer science and business studies mainly from USA. I hold a bachelor’s degree combined with eight software development certifications from IBM, SUN and Microsoft. Also passed CMA examinations from IMA, New Jersey and Level 2 of CFA from CFA Institute, Charlottesville, Virginia. Passed 11 International Software Development Examinations of IBM, Sun, and Microsoft. 1) React Nanodgree By Udacity 2) Certified Blockchain Business Foundations 3) Certified Blockchain Developer - Ethereum 4) Sun Certified Java Programmer (SCJP) 5) Sun Certified Mobile Application Developer (SCMAD) 6) IBM Certified Enterprise Connectivity with J2EE 7) IBM Certified Developer XML and Related Technologies 8) IBM Certified Object Oriented Analysis and Design with UML 9) Microsoft Certified Professional VB .NET 10) Microsoft Specialist: Programming in HTML5 with JavaScript and CSS3 11) Android Basics Nanodegree by GoogleJava
RustSolidityWeb3Blockchain, NFT & CryptocurrencyBlockchainEthereumAndroid App DevelopmentJavaScriptPythonMongoDBNode.jsReactTypeScriptReact Native - $40 hourly
- 5.0/5
- (13 jobs)
Results-oriented iOS Application Developer with a goal of creating applications to facilitate the users and provide them the best user interface experience. I also understand the importance of creating highly readable and easily maintainable code. I deliver quality results to tight timelines. I can create RESTful applications and work through different third party libraries. I have the skills of creating beautiful animations and can apply every type of CRUD operations. I have full command on creating native iOS apps.Java
Object-Oriented ProgrammingRaspberry PiArduinoGitRed Hat Enterprise LinuxData StructuresiOS DevelopmentCameraSwiftiOSC++Python - $50 hourly
- 4.9/5
- (31 jobs)
Hello, I'm Shahzain Ali, a Mobile App Developer with 8 years of experience in Android, iOS, desktop, and VPN apps. I specialize in Kotlin, Swift, Java, and Python. From advanced mobile apps to innovative iOS solutions and robust desktop applications, my work also extends to wearables and IoT. Android: App development with advanced skills in Java, and Kotlin. iOS: iOS app development with advanced skills in Swift, SwiftUI Desktop Applications development, I develop using Tkinter and QT framework, I have awesome experience in Python and C++ with QT. Watch Application: Proficient in crafting apps for wearable devices (wearOS, watchOS, Tizen) VPN Technology Leader: Have an awesome experience in OpenVPN and Wireguard with integration to Android, iOS, and Desktop applications using Python and QT framework. IoT: Developing smart, connected solutions with proficiency in BLE, Arduino, ESP32,nodemcu, and sensors. Technology Toolkit: Development Tools and languages: Swift, Java, Kotlin, SwiftUI, cmake, Xcode, Android studio, QT, Tkinter, Python Database: Realm, Room, Sqlite Serverless architecture: Firebase including storage, Authentication, and Realtime database. Why Work With Me? Proven Success: Over 70 Android and iOS developed for clients globally, including in the USA, Germany, UK, and UAE Skills & Achievements: Comprehensive Authentication & Payment Integrations: Specializing in Firebase, Google, and Facebook authentication, and payment solutions like Stripe and paytabs. Advanced Programming Knowledge: Expert in MVC, MVVM, Google Maps API, geolocation, and biometric authentication. Community Contributor: An active voice in the developer community with a 200K reach on StackOverflow. Here are some awesome reviews of my clients I have developed an Android and iOS applications using Java, Kotlin, Swift.Mobile applications includes complex services of VPN and have Openvpn and Wireguard Protocol. "Perfect developer, adhere to schedule, highly motivated specialist for any complex task, will hire again for sure" I have fixed issue in cmake of an iOS application "Good experience working with Ali. He has a very good attitude and does his best to help"Java
FirewallLinuxTestingQt FrameworkWear OSOpenVPNVPNAndroid App DevelopmentKotlinMobile App DevelopmentiOSPythonSwift - $25 hourly
- 4.8/5
- (20 jobs)
✅ Top rated & Upwork verified developer. ✅ Skilled in developing applications using MEAN, MERN stack also AWS. ✅ Expertise in Mobile application development for iOS & Android. 🥇 Full Stack Mobile and Web Application Developer with 5+ Years of Experience in Development. I have worked with 🌟High Profile Clients/Organizations🌟 in my career and developed Top Notch Mobile and Web Applications for them. As a developer, here is a detailed list of my skills: ➡ Back-end / PHP and Javascript Frameworks: ✔️Node JS ✔️Express JS ✔️AWS Lambda ✔️Laravel ➡Front-end/JavaScript Frameworks: ✔️Angular.js ✔️React.js ➡Mobile Development Frameworks: ✔️ReactNative ✔️Ionic ✔️Flutter ➡CMS/Platforms: ✔️WordPress ✔️WooCommerce ✔️DIVI ➡Development Tools: ✔️Sublime Text ✔️SVN ✔️Git ✔️Mercurial ✔️Apache ✔️Nginx ✔️AWS ✔️Postman ✔️VSCode ✔️AdobeXD ➡Technologies: ✔️PHP. ✔️HTML5, CSS3. ✔️SASS/LESS. ✔️JavaScript, jQuery, and AJAX. ✔️JSON, XML. ✔️SQL, MySql, MongoDB, DynamoDB, Firebase ✔️Bootstrap. ✔️Docker Here are some of the apps that I've worked on: ► Paleo Keto (Restaurant Delivery App): ◉ Playstore: https:// play.google.com/store/apps/details?id=com.blitzapp.paleo ◉ Appstore: https:// apps.apple.com/pk/app/paleo-keto-user/id1542586894 ► Paleo Rider (Restaurant Rider App with Live Location Similar to DoorDash): ◉ Playstore: https:// play.google.com/store/apps/details?id=com.paleorider ◉ Appstore: https:/ /apps.apple.com/pk/app/paleo-keto-rider/id1543707389 ► Village Dukaan (E-Commerce App): ◉ Playstore: https:// play.google.com/store/apps/details?id=com.villagedukaan.villagedukaanandroidapp&hl=en ◉ Appstore: https:// apps.apple.com/pk/app/villagedukaan/id1442479463 ► Check my Fares (Flight Booking App Live in Australia) ◉ Playstore: https:// play.google.com/store/apps/details?id=com.checkmyvacay ◉ Appstore: https:// apps.apple.com/pk/app/cmfx/id1492492944 ► TripMystic ◉ Playstore: https:// play.google.com/store/apps/details?id=com.tripmystic. ◉ WebApp : https://www. tripmystic.comJava
Web ApplicationExpressJSAWS LambdaRedux ThunkAndroid App DevelopmentiOS DevelopmentFlutterNode.jsReactSmartphoneMongoDBReact NativeSwift - $30 hourly
- 4.9/5
- (36 jobs)
I develop Full-Stack SaaS MVPs/Websites/ERP/CRM/Tailored Web Applications for startups, individuals and established businesses. I am well-versed in building tailored web applications with responsive, simple, and clean Front-end UI and scalable Back-end APIs. I am also expert in integrating Stripe or PayPal payment gateway for subscription or one-time payment based model. I also hone skills in integrating third-party APIs such as ChatGPT API, OpenAI API, etc. I also possess skills in integrating external services in web application such as Google Maps, Google Sheets, Gmail, QuickBooks, etc. I also able to develop real-time messaging and notification system with web sockets. I also do possess strong grip in mult-tenant application development to restrict/allow users based on their roles. I have a hands-on experience in building web-applications with HTML, CSS, JavaScript/TypeScript, React/Angular for Front-end development and Java, Spring Boot, Express JS, and Node.js for Back-end development with the SQL and NoSQL database such as PostgreSQL and Mongo DB. Along with this, I also provide excellent service in deploying application and database to cloud servers such as AWS, Heroku, and Netlify. I also develop elegant websites/landing page for presenting your product or applications to users. Everything will be responsive for Desktop, Mobile, and Tablet View. Some of the most common applications I develop: - SaaS MVPs – ready for market, funding, and user growth - Custom CRMs and internal dashboards - Marketplaces for services, products, or jobs - Admin Panels and analytics dashboards - Booking & scheduling systems - Hospital management systems (patients, staff, appointments) - School/education platforms (student management, portals, assessments) - Payment and financial management systems (billing, subscriptions, invoices) - Inventory/order tracking systems and subscription platforms 💼 Why Clients Work With Me: 🧠 I think like a product owner, not just a coder 🔐 I care about clean code, performance, and data security 📈 I help startups and businesses scale fast and smart 💬 I’m proactive with communication, feedback, and delivery Click the green 'Message' button at the top and discuss any Web-based idea with me.Java
Amazon Web ServicesAPI IntegrationAPIWebsitePayment Gateway IntegrationTypeScriptJavaScriptNode.jsExpressJSAngularReactWeb DevelopmentWeb ApplicationFull-Stack Development - $17 hourly
- 4.7/5
- (9 jobs)
I am a senior Java developer having more than 5 years of professional experience in software development. A self-starter, and a proven team player, and always accepted the challenges that allow me to learn new skills while utilizing my hard-earned skills - Experienced in various areas in the design, development, and maintenance of software applications - Well-versed in developing applications based on SOA (SOAP/Rest). - Have experience in creating applications from scratch. - Have good knowledge in Java7/8/11/17, MySQL, Oracle ,Spring Frameworks(Boot, Security, Data JPA, Spring Web, etc.) and docker. - In addition to working independently on projects, I am well able to create value with a team. - Experienced in writing test automation and load test scripts. - Good problem-solving skills My specialization: ✅ Java, JavaEE, Java Web ✅ Spring Boot, Spring MVC, Spring Security, Spring integration, Spring MicroServices ✅ ORM, Spring Data/JPA/Hibernate/ JDBC, Spring sessions ✅ Databases: MySQL, Postgres Oracle Pl/SQL, MongoDB, Mongoose , MMsql Server and cassandra ✅ REST APIs integration, design, and development ✅ Soap Apis ✅ Linux, Dockerizatoin ✅ Rabbit Mq, KAFKA, and its integrations ✅ Front end development: Html, CSS, JavaScript, thyme leaf 𝙈𝙮 𝘾𝙤𝙧𝙚 𝙅𝙖𝙫𝙖/𝙎𝙥𝙧𝙞𝙣𝙜 𝘽𝙤𝙤𝙩 𝙀𝙭𝙥𝙚𝙧𝙩𝙞𝙨𝙚: 💥 𝐅𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤𝐬: Spring boot, Hibernate, Web Services, JPA, JMX Client, Spring MVC, Spring Rest, Spring data, Spring Gateway, etc 💥 𝐃𝐞𝐯𝐎𝐩𝐬: Docker 💥 𝐃𝐚𝐭𝐚𝐁𝐚𝐬𝐞: SQL Server, MySQL, Oracle, Postgresql, Mongo Db & Cassandra 💥 𝐎𝐭𝐡𝐞𝐫 𝐓𝐨𝐨𝐥𝐬 & 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬: SVN, GIT, PostMan, JMeter,Swagger 💥 𝐒𝐞𝐜𝐮𝐫𝐢𝐭𝐲 𝐌𝐨𝐝𝐮𝐥𝐞𝐬: Spring Security,JWT 💥 𝐓𝐞𝐬𝐭𝐢𝐧𝐠: JUnit, Mockito 💥 Payment Gateways: Master Card 💥 Third-party Integrations: SendGrid API, TextLocal API, WhatsApp Business APIJava
ThymeleafSpring FrameworkSpring BootMySQLRESTful APISpring SecurityRabbitMQJava Persistence APIMicroserviceHibernateJUnitSpring MVCDockerJavaScript - $30 hourly
- 4.9/5
- (70 jobs)
⭐⭐⭐⭐⭐ 100% Client Satisfaction Guarantee 🏆 Certified by Upwork 🏆 Top Rated Developer ⌛ Full-Time Availability (40h/Week) - 24/7 ✅ Unlimited Revisions Until Your Satisfaction 🥇 7+ Years of Experience Why Choose Me? ⚡️ Results-Driven Designer ⚡️ Daily Communication ⚡️ Conversion Increase ⚡️ Quick Turnaround ⚡️ Team Player ⚡️ Flexible Availability ⚡️ Figma Expert ⚡️ Wide Range of Services ⚡️ Custom Approach to Each Project Key Expertise 🚀 WordPress & WooCommerce Mastery Custom Themes & Plugins: Develop engaging, SEO-optimized websites. SEO Optimization: Ensure your site stands out in the digital crowd. 🛒 Shopify Expertise E-Commerce Excellence: Create and optimize Shopify stores for an exceptional shopping experience. 🎨 UI/UX Design with Figma Seamless Experience: Bring your designs to life with visually stunning and user-friendly interfaces. 🔍 SEO-Optimized Development Maximize Reach: Fully optimize your site for search engines to attract more traffic and convert leads. 🔧 Custom Solutions Advanced Technologies: Proficient in PHP, React.js, Next.js, Vue.js, offering bespoke solutions tailored to your business needs. Ready to Revolutionize Your Online Presence? If you're looking to hire an expert in WordPress, WooCommerce, Shopify, and UI/UX design, my services at $30.00/hr are your gateway to digital excellence. Let's connect and discuss how I can help you achieve your web development goals. Don’t settle for less - hire me and watch your online presence soar to new heights! ✅ Have a project? Click the “INVITE” button at the top of my profile and I’ll take it from there!Java
ElementorPSD to WordPressCMS DevelopmentWebsite RedesignHTMLWeb DevelopmentPHPJavaScriptWebsite BuilderSquarespaceWixWordPressUI GraphicsCSS - $25 hourly
- 5.0/5
- (25 jobs)
I am a skilled full stack developer with a passion for building impactful software solutions across various domains such as Fintech, CRM systems, Data Cataloguing, Data Pipelines, and Big Data. My expertise spans both front-end and back-end development, ensuring seamless user experiences and robust backend functionality. With extensive experience in these industries, I have a deep understanding of building efficient, scalable, and secure applications. My development skills cover technologies like React, Node.js, Python, Spring Boot, Golang, and cloud services, allowing me to deliver full-stack solutions tailored to your needs. Beyond my development work, I also have a strong background in education, having taught courses at the university level. I specialize in the fundamentals of computing, algorithms, and data structures. Whether you're looking for project development or tutoring in these subjects, I can help bridge the gap between theory and practical application. What I offer: Full Stack Development for Fintech, CRM, and data-driven applications Expertise in data cataloguing and pipelines for big data projects Tutoring in Foundations of Computing and Algorithms & Data Structures Let’s work together to build, scale, and optimize your software while enhancing your coding skills!Java
GolangTutoringMicroserviceReactDockerDocker ComposeSystem DeploymentSpring BootSpring DataRESTful APILinuxPythonMySQLData Structures - $30 hourly
- 5.0/5
- (14 jobs)
If you're looking for a 𝙠𝙞𝙤𝙨𝙠 𝙖𝙣𝙙 𝙫𝙚𝙣𝙙𝙞𝙣𝙜 𝙢𝙖𝙘𝙝𝙞𝙣𝙚 developer with the skills and experience to help you achieve your business goals, I'm your person. I can help you to develop and deploy a 𝙠𝙞𝙤𝙨𝙠 𝙤𝙧 𝙫𝙚𝙣𝙙𝙞𝙣𝙜 𝙢𝙖𝙘𝙝𝙞𝙣𝙚 solution that will exceed your expectations. I'm a 𝙠𝙞𝙤𝙨𝙠 𝙖𝙣𝙙 𝙫𝙚𝙣𝙙𝙞𝙣𝙜 𝙢𝙖𝙘𝙝𝙞𝙣𝙚 developer passionate about creating innovative, user-friendly 𝙨𝙚𝙡𝙛-𝙨𝙚𝙧𝙫𝙞𝙘𝙚 𝙨𝙤𝙡𝙪𝙩𝙞𝙤𝙣𝙨. I have over five years of experience developing and deploying 𝙠𝙞𝙤𝙨𝙠 𝙖𝙣𝙙 𝙫𝙚𝙣𝙙𝙞𝙣𝙜 𝙢𝙖𝙘𝙝𝙞𝙣𝙚𝙨 for various industries, including retail, healthcare, and hospitality. I deeply understand the 𝙠𝙞𝙤𝙨𝙠 𝙖𝙣𝙙 𝙫𝙚𝙣𝙙𝙞𝙣𝙜 𝙢𝙖𝙘𝙝𝙞𝙣𝙚 hardware and software available in the market. I also have a strong track record of delivering high-quality products on time and within budget. I offer all kinds of software development services and have worked on frameworks, including: - MERN Stack ReactJS, NodeJS, ExpressJS, MongoDB - PHP Laravel, Symfony, and custom PHP - ASP.net MVC, C#, Java, WPF -Server management on Azure, AWS, Digital Ocean, GCP -Database architectures on MongoDB, MYSQL, MSSQL I'm passionate about working with my clients to understand their unique needs and develop solutions that meet them. I'm also committed to providing my clients with the best possible support and service. Keywords: kiosk developer vending machine developer self-service solutions retail kiosks healthcare kiosks hospitality kiosks kiosk hardware kiosk software vending machine hardware vending machine software kiosk development vending machine development kiosk support vending machine support kiosk service vending machine serviceJava
Desktop ApplicationAntamedia Kiosk SoftwareSoftware DevelopmentASP.NETWindows App DevelopmentKioskMulti-Touch Hardware DevelopmentiOS DevelopmentReactMobile App DevelopmentNode.jsReact NativeAndroid App DevelopmentFlutter - $30 hourly
- 5.0/5
- (2 jobs)
As a highly skilled Automation Engineer, I bring extensive expertise in a wide range of testing and automation disciplines. With a solid foundation in UI Automation, API Automation, Load and Stress Testing, Blockchain Testing, and ETL Testing, I have consistently delivered robust and efficient solutions that enhance quality and reduce manual effort. My ability to adapt to different automation technologies and methodologies ensures I can provide top-notch automation frameworks tailored to your needs. Technical Skills: I am proficient in several programming languages and frameworks, allowing me to design and implement automation strategies across diverse platforms. My core competencies include: - **Programming Languages:** - Java - C#/.NET - Python - JavaScript/TypeScript - C/C++ Automation Expertise: My deep knowledge of automation technologies enables me to automate complex workflows and processes, ensuring accuracy and scalability. I have hands-on experience with: - **Automation Technologies:** - Selenium: Expert in web browser automation for comprehensive UI testing. - Appium: Skilled in mobile automation for both Android and iOS platforms. - Cypress: Specialize in front-end and end-to-end testing for modern web applications. - Playwright: Proficient in multi-browser testing with modern frameworks. - Robotic Process Automation (RPA): Automating repetitive tasks to improve productivity. Tools & DevOps: In addition to my automation expertise, I am well-versed in various tools and platforms that are essential for modern software development and testing pipelines: - **Tools & Platforms:** - **Azure DevOps:** Integrated solutions for planning, developing, testing, and delivering applications. - **JIRA:** Effective project management and bug tracking. - **Kubernetes & Docker:** Proficient in containerization and orchestration for scalable and reliable testing environments. - **Git/GitLab:** Version control and CI/CD pipeline management to ensure streamlined workflows. - **Jenkins:** Expert in automating build, test, and deployment pipelines. My Approach: I adopt a methodical and detail-oriented approach to automation, focusing on creating efficient, reusable, and maintainable automation frameworks. My goal is not just to automate but to improve overall process efficiency and ensure comprehensive test coverage. From setting up the architecture to integrating automation into the CI/CD pipeline, I prioritize collaboration, transparency, and delivering results that align with your business objectives.Java
JavaScriptAnsibleTerraformJenkinsUiPathPythonTestNGPuppeteerCypressFirebaseArtificial IntelligenceSeleniumAppiumC# - $15 hourly
- 5.0/5
- (7 jobs)
Ready to elevate your online presence? Look no further! As a dedicated full-stack developer, I specialize in creating attention-grabbing websites that inspire action and leave a lasting impression. With expertise in JavaScript, React, Node.js, MongoDB, PostgreSQL, Firebase, AWS, Tailwind CSS, and SQL, I bring your vision to life with sleek designs and interactive elements. I focus on the details that make a website truly shine, from pixel-perfect layouts to fast loading times, ensuring a flawless user experience. Collaboration is key. I value your input and prioritize open communication throughout the development process. Together, we'll transform your ideas into reality with your goals at the forefront. Partnering with me means you get: - A captivating website that drives results. - Integration of the latest web technologies. - Responsive design for all devices. - Fast performance to keep visitors engaged. - Transparent communication and regular updates. - Thorough testing and quality assurance. Don’t settle for less in the digital world. Let’s unlock the full potential of your brand online. Get in touch today, and let's create a website that captivates and converts!Java
Tailwind CSSMongoDBSQLFirebaseFront-End DevelopmentHTMLCSSBlockchainFull-Stack DevelopmentWebsiteResponsive DesignReactReact NativeJavaScript - $10 hourly
- 5.0/5
- (4 jobs)
Hi there! If you have a critical, time-sensitive and important job for which you are looking for a reliable freelancer with excellent problem solving and out-of-the-box thinking skills, then I believe I am the right person for you. I build meaningful and productive relationships with my clients and strive for client satisfaction and value addition throughout the job duration and even afterwards. I am a top rated, reliable & seasoned big data engineer with extensive experience building Delta Lakes, Data Warehouses and BI solutions for Fortune 500 clients. I have comprehensive experience with PySpark, BigQuery, Databricks, MS Fabric, Snowflake, SQL & ETL tools like Azure Data Factory & Oracle Data Integrator and PowerBI BI tool. I have experience building both batch and streaming data pipelines while handling both SCD Type 1 and Type 2 dimensions. Further, I have in-depth data modelling experience and will design dimensional, 3NF and/or Data Vault models. I also have extensive expertise in Python, Java, Kotlin & Scala. Let's connect and discuss your Data Analytics needs so I can help you build analytics solutions in a structured and predictable manner while applying best practices.Java
BigQueryMicrosoft Power BISnowflakeDatabricks PlatformPythonSpring BootReactData EngineeringKotlinSQL - $25 hourly
- 4.9/5
- (21 jobs)
🚀 Expert Android & Flutter Developer | 10+ Years of Experience Are you looking for a highly skilled Mobile App Developer who can build scalable, high-performance Android & Flutter applications? With 10+ years of experience, I have successfully developed and published apps for startups, enterprises, and global clients—delivering seamless user experiences and robust architectures. What I Offer: ✔ Custom Android & Flutter App Development (from concept to deployment) ✔ Performance-Optimized, Scalable & Secure Applications ✔ Pixel-Perfect UI/UX Implementation ✔ Integration with Firebase, REST APIs, and Third-Party Services ✔ Agile Development, Clean Code & Best Coding Practices Technical Skills & Expertise: 🔹 Android (Java, Kotlin) 🔹 Flutter (Dart, GetX, Rx, Bloc, Provider) 🔹 Architectures: MVC, MVP, MVVM, Clean Architecture 🔹 Dependency Injection: Dagger 🔹 Testing: JUnit, Mockito, Espresso, TDD 🔹 Version Control & Project Management: Git, Jira 🔹 Backend & API Integration: Firebase, REST APIs 🔹 UI Optimization: XML, Data Binding, View Binding 📌 Why Choose Me? ✅ 100% Client Satisfaction & Long-Term Collaboration ✅ Proven Track Record in Delivering High-Quality Apps ✅ Efficient Communication & On-Time Project Delivery Let's build your next high-performance mobile application together! 🚀 📩 Feel free to reach out—let’s discuss your project today!Java
Firebase Realtime DatabaseFirebase Cloud FirestoreiOSUser AuthenticationFlutter StackMobile AppAndroidKotlinFirebaseDartAndroid App DevelopmentMobile App DevelopmentFlutterHybrid App Development - $20 hourly
- 4.6/5
- (25 jobs)
🥇 Among on Top #5 Java freelancers UpWork. 🏆 Jobs 100% succeed. ✅ Upwork Skills Certification - Java Developer. UpWork Availability 24/7 Message me anytime. 👋 I guarantee you 100% satisfaction with your work, task, project, or any assistance required. I only take on tasks or projects that align with my skills, ensuring the best outcomes for you. Feel free to interview me first before assigning any project—I don’t charge any consultancy fees; it’s completely free. If you’re a company or need someone for long-term work, don’t hesitate to contact me. I guarantee there will be no issues from my side, whether it’s Java or Spring Boot-related. I have 12 years of experience and have worked with multinational companies, gaining extensive knowledge and expertise. ⚡My past experience with multinational corporations - 1. Madinapps (USA) 100% Succeed. 2. Pairdesk (CANADA) 100% Succeed. 3. Hashtag (UKRAINE) 100% Succeed. ⏱️ My working Hours. ET - 9:30AM TO 4:00PM. PT - 9:30AM TO 2:00PM CT - 11:00AM TO 3:00PM 🎯 My Expertise: 12+ Years of experience in Full-Stack Java Developer✔ Java backend development - Spring Framework - Rest API's Javascript, Angular 2, React based Web front-ends Android Native Mobile Apps Development using Java and Kotlin Test Automation Work in Agile methodologies 🎯 Backend Technologies • Java (jdk8 jdk11 jdk 17) ✔ • Microservices ✔ • RestAPI ✔ • Reactive Spring ✔ • SpringFrameWork (SpringBoot, Spring Security, Spring AOP) ✔ • Spring JPA (Hibernate) ✔ • Junit Mockito ✔ • Kafka ✔ • MySQL, Oracle ✔ • Java Fx ✔ • Java2EE ✔ Frontend & JS • Vue.js • React.js • Angular 2/4 • Angular Js • JavaScript • JQuery • HTML • CSS3Java
CSS FrameworkjQueryJavaScriptSQLMySQLAngularAngular 8HibernateRESTful APISpring BootSpring FrameworkCore Java - $20 hourly
- 5.0/5
- (14 jobs)
I am a full-stack developer with more than 10+ years of experience with a passion of code of learning new technologies and solving business problems. I worked on a wide range of technologies. Provide full support in project development and software quality assurance. Experience in working with the team and as an individual as well. Experience in restructuring projects as well add new features according to the requirements. My Skills: 1. Javascript ( Express JS, Angular JS, VueJs, ReactJs ) 2. Typescript ( NestJS, Angular 2+ ) 3. NodeJS ( SQL, Postgresql, Graphql , MongoDB, Socket.io) 4. Python ( Tornado, Flask, Django, ERPNext ) 5. Php ( Larvel, Codeigniter ). 6. Css ( Bootstrap, Tailwindcss). - I also work in different environments and review methodologies like weekly sprints/ daily sprints (review of task/ improving task/ testing ) - Fluent in speaking and writing English. - you will receive clean code with good comments by following the best practices from the industry according to your requirements - Good understanding of Fintech domain, Cards, Payments, and third-party integration Library. - I am used to working with project management tools with Jira, Trello, monday.com, excel tools, and communication tools Skype, Google Hangout, Slack, and Microsoft Teams. - Excellent experience in Git, Github, TFS, and Bitbucket. - I can put all my effort into providing you with the best solution and advice for your problem and requirements.Java
APIMongoDBAngularExpressJSNestJS DevelopmentDjango StackDjangoNestJSAPI DevelopmentTypeScriptNode.jsPythonJavaScript - $10 hourly
- 5.0/5
- (7 jobs)
A certified Software Engineer with 6 years of experience in mobile application development, my skills encapsulate the experience of developing mobile applications-from developing applications from scratch to the customization and debugging of applications. I'd say, having extensive expertise in Flutter gives me a lead, one of the best platforms for high-performance iOS and Android app development. I also have experience in Java, which further validates my capability to deliver efficient and scalable mobile solutions.Java
Business Applications DevelopmentSolution ArchitecturePayment GatewayGitHubMobile AppFirebaseCross-Device CompatibilityiOS DevelopmentAndroid App DevelopmentiOSAndroidDartFlutterMobile App Development - $15 hourly
- 5.0/5
- (3 jobs)
I am an AI Engineer with a strong background in developing innovative AI and machine learning solutions. My expertise spans across various AI domains, including NLP, data processing, and multi-agent systems. I leverage a diverse set of tools and technologies, including AWS, Python, and vector databases, to deliver efficient and effective solutions. Below are some of the key projects I have worked on, showcasing my skills and experience in AI and data engineering.Java
ActionScriptC#Data StructuresComputer ScienceMachine LearningData ScienceComputer VisionC++Machine Learning ModelNatural Language ProcessingPython - $10 hourly
- 0.0/5
- (1 job)
I'm now dedicating my experience to freelancing after working full-time to develop dependable, scalable software solutions. I'm prepared to assist you in achieving its software objectives now that I've successfully created and implemented online and mobile applications, streamlined backend systems, and integrated complex APIs. What I Can Do For You: * Build specialized, high-performing apps that are suited to your needs. * Write clean, maintainable code. * Collaborate with you to completely understand your vision and bring it to life. Skills & Expertise: Frontend Frameworks: Next.js, React UI/UX Design: Responsive design, CSS3, HTML5, JavaScript Backend Frameworks: Node.js, Java, Databases: MySQL, PostgreSQL , MongoDBJava
React NativeSpring BootNodeJS FrameworkJavaScriptReactNext.js - $30 hourly
- 4.2/5
- (2 jobs)
Hello! I’m Usman Khalil, a seasoned mobile application developer with over 11 years of experience in crafting high-quality, user-centric mobile apps for both iOS and Android platforms. My mission is to turn your app ideas into reality with seamless performance, stunning design, and robust functionality. Whether you're a startup or an established business, I have the expertise to deliver custom solutions that drive engagement and achieve your business goals. Why Choose Me: Extensive Experience: Over a decade of hands-on experience in mobile app development. Client-Focused Approach: Dedicated to understanding and fulfilling your business needs. High-Quality Standards: Commitment to delivering top-notch, reliable applications. Timely Delivery: Efficient project management to meet deadlines without compromising quality. Transparent Communication: Regular updates and clear communication throughout the project lifecycle. My Approach: I approach each project with a commitment to excellence and a keen understanding of what makes an app successful. I enjoy collaborating closely with clients to understand their unique needs and translate them into functional, beautiful apps that users love. Communication is key for me, and I make it a point to keep my clients updated and involved throughout the development process. When I'm not coding, I enjoy driving and eating, which keep me inspired and energized. Let's Connect: I'm always open to exploring new opportunities and collaborations. If you have a project in mind or just want to chat about mobile app development, feel free to reach out. Let's create something amazing together!Java
iPad App DevelopmentKotlinSwiftAndroid App DevelopmentiOS DevelopmentAndroid Studio - $40 hourly
- 5.0/5
- (1 job)
With 8 years of experience as a Developer, Designer, and Animator, I leverage modern technology to deliver high-quality software solutions efficiently and accurately. Areas of Expertise: Web Development: PHP, MySQL, HTML5, JavaScript. Application Development: Proficient in developing applications including Java and WordPress. Android App Development: Skilled in Android Studio with expertise in Java, Kotlin, and Fire Monkey. Design and Animation: Experienced with Xara, Adobe Illustrator, Photoshop, Adobe Premiere. My diverse skill set allows me to create comprehensive solutions and visually compelling designs.Java
iOSFlutterFirebaseAdobe PhotoshopAdobe IllustratorGraphic DesignWindows App DevelopmentCSSHTMLMicrosoft Visual StudioAndroid App DevelopmentJavaScriptDelphiC# - $40 hourly
- 5.0/5
- (12 jobs)
I graduated with a Bachelor's in Computer Science and won the Best FYP award for a chatbot related to women's health. Currently, I'm working as a junior data scientist and have a passion for programming and solving challenging problems. I'm proficient with Python, C++ and JavaScript.Java
WebGLC++SQLRData ScrapingAutomationJavaScriptScriptingPythonSeleniumTypeScriptNode.jsKotlinSpring Boot - $50 hourly
- 5.0/5
- (18 jobs)
Hi, I'm Ali, a Full Stack Developer, with a Bachelors Degree in Computer Science & Mechanical Engineering from the University at Buffalo, New York. I have extensive experience (7+ years) working with the following technologies and tools: Front End Development - React, Redux, JavaScript, TypeScript, HTML, CSS Back End, Server Side & API Development - Node.js, Python (Flask), Java (Spring Boot) Database Development - MySQL, PostgreSQL, MongoDB Mobile App Development - React Native, Flutter Desktop Application Development - PyQt, Python, Electron Cloud Services - Microsoft Azure, Google Firebase Scripting/Data Extraction/Data Conversion/Etc - Python Project Management/Communication Tools - Upwork, Guru, Slack, Jira, Teams, etc. Looking forward to hearing from you. Thank you. Cheers, AliJava
Microsoft AzurePythonSpring BootPython ScriptPostgreSQLMySQLWeb DevelopmentFront-End DevelopmentjQueryTypeScriptJavaScriptCSSHTMLReact - $40 hourly
- 5.0/5
- (7 jobs)
🟢 Top Rated Plus Software & Web Consultant 🟢 Expert in Custom Software, Websites, and Game Development 🟢 Certified Full-Stack Developer & Technology Strategist 🟢 6+ Years of Proven Industry Experience 🟢 30+ Satisfied Clients Globally 🟢 50+ Projects Successfully Delivered Across Various Domains 🟢 Specialist in Scalable and High-Performance Solutions 🟢 Proficient in React, C#, C++, Python, HTML, CSS, JavaScript 🟢 Strong Background in UX/UI Design and Optimization 🟢 Agile and Waterfall Project Management Expertise 🟢 Consistently Delivering On-Time and Within Budget 🟢 Comprehensive Post-Launch Support & Maintenance 🟢 Passionate About Leveraging Technology for Innovation "𝙏𝙧𝙖𝙣𝙨𝙛𝙤𝙧𝙢𝙞𝙣𝙜 𝙄𝙙𝙚𝙖𝙨 𝙞𝙣𝙩𝙤 𝙍𝙚𝙖𝙡𝙞𝙩𝙮 𝙬𝙞𝙩𝙝 𝘾𝙪𝙨𝙩𝙤𝙢 𝙎𝙤𝙛𝙩𝙬𝙖𝙧𝙚, 𝙒𝙚𝙗𝙨𝙞𝙩𝙚𝙨, 𝙖𝙣𝙙 𝙂𝙖𝙢𝙚𝙨" As a dedicated software and web consultant, I’m committed to not just meeting, but exceeding client expectations. My track record of delivering innovative, tailor-made solutions speaks for itself. Whether you're looking to develop cutting-edge software, design a responsive website, or create an immersive game, I bring the expertise and creativity needed to bring your vision to life. 𝐖𝐡𝐚𝐭 𝐈 𝐎𝐟𝐟𝐞𝐫: - Custom Software Development: I specialize in building scalable, high-performance software applications tailored precisely to your business needs. My solutions are robust, efficient, and designed to solve real-world challenges. - Website Design & Development: I create stunning, SEO-optimized websites using technologies like React, C#, C++, Python, HTML, CSS, and JavaScript. My designs are not just visually appealing but also focused on providing an exceptional user experience across all devices. - Game Development: From concept to execution, I develop engaging games that captivate players. I focus on seamless gameplay, intuitive mechanics, and intricate level design, ensuring your game stands out in a competitive market. 𝐖𝐡𝐲 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞? - Client-Centric Approach: Your vision is my priority. I take the time to understand your unique goals and work closely with you to ensure the final product is exactly what you need. - Proven Expertise: With a solid foundation in computer science and years of experience, I bring technical proficiency and creative insight to every project. - Innovative & Up-to-Date: I stay ahead of industry trends to provide you with the most advanced solutions, whether it’s a state-of-the-art website, a complex software application, or an immersive game. - Detail-Oriented Execution: I don’t just deliver a product—I deliver excellence. Through meticulous research and analysis, I ensure that every project is optimized for performance, functionality, and user satisfaction. - Reliable Communication: I believe that clear and consistent communication is key to a successful project. You’ll always be in the loop, with regular updates and an open line for any questions or feedback. 𝐑𝐞𝐚𝐝𝐲 𝐭𝐨 𝐄𝐥𝐞𝐯𝐚𝐭𝐞 𝐘𝐨𝐮𝐫 𝐏𝐫𝐨𝐣𝐞𝐜𝐭? I’m passionate about using technology to solve problems and create innovative solutions that drive success. Let’s collaborate to bring your ideas to life. Whether you need software that scales, a website that shines, or a game that engages, I’m here to make it happen. Let’s Connect! I’m available to discuss your project goals and how we can achieve them together. Reach out today, and let’s start building something amazing. 𝐍𝐨𝐭𝐞: I offer a 30-minute free consultation to discuss your project. Let’s have a conversation and bring your ideas to life with precision and excellence.Java
JSONSAPReactHTMLCSSCommunication EtiquetteData ScrapingPythonMarketingCPQ SoftwareJavaScriptSQLData ProcessingData Entry - $60 hourly
- 5.0/5
- (4 jobs)
Are you looking to import products into the USA but don't know where to start with FDA regulations? Look no further! As a seasoned professional with extensive experience in FDA compliance and import permit procurement, I am here to help you navigate the complex regulations and requirements. Services Offered: FDA Registration: I will assist you in registering your company and your products with the FDA, ensuring that they meet all necessary regulations and requirements. Import Permit: I will help you obtain the necessary import permit for your products, making sure that they are in compliance with all applicable laws and regulations. Compliance Review: I will review your products and processes to ensure that they are in compliance with all FDA regulations, providing you with a comprehensive report and recommendations for improvement if needed. Food Facility Registration: For providing any type of foods services in the USA are require to register FDA e.g. Foods warehousing, Consumptions, labeling, relabeling, and resealing. For a streamlined and efficient supply chain solution? Look no further! As a seasoned professional with extensive experience in the logistics and transportation industry, I am here to help you manage all aspects of your supply chain, from freight and logistics to import and export documentation. Services Offered: Freight Management: I will manage the transportation of your goods, securing the best rates and ensuring that your shipment is delivered on time and in accordance with all applicable laws and regulations. Logistics Management: I will manage all aspects of your logistics operations, ensuring that your goods are stored and moved efficiently. Import & Export Documentation: I will handle all necessary documentation for your imports and exports, making sure that your shipment is compliant with all applicable laws and regulations. Supply Chain Analysis: I will analyze your supply chain processes to identify areas for improvement, providing you with a comprehensive report and recommendations for optimization. Supply chain management Freight management Logistics management Import & export documentation I will help you file your Electronic Export Information (EEI) through the Customs and Border Protection (CBP) Automated Commercial Environment (ACE) system. This gig includes: EEI Filing: I will prepare and submit your EEI filing to CBP ACE, including all required information such as commodity codes, export licenses, and shipment details. Compliance Check: I will review your shipment to ensure it complies with all export regulations and requirements, including those related to controlled goods, embargoed countries, and licensing requirements. Document Preparation: I will prepare any required export documentation, such as commercial invoices, packing lists, and bills of lading. Expert Advice: I will provide expert advice on the best way to handle your specific shipment, including any applicable regulations or requirements. Import Declaration: I will provide Import Declaration as customs broker and smooth clearance of your consignment. Electronic Export Information (EEI) filing Customs and Border Protection (CBP) Automated Commercial Environment (ACE) system Commodity codes Export licenses and permits Shipment details Compliance check Embargoed countries Export documents Why Choose Me: Extensive experience Personalized approach Customer satisfaction If you are require any questions or help please let me know.Java
Supply Chain & LogisticsSupply Chain ManagementLogistics ManagementImport ProcedureLegal AssistanceImporting & Exporting DataLegal ConsultingWeb Development ConsultationWebsite BuilderMicrosoft OfficeInvoicingWeb DesignWeb Development - $35 hourly
- 5.0/5
- (2 jobs)
Hi, welcome to my profile! I am a software engineer with a broad skillset spanning game development, hardware prototyping and integration, malware analysis and much more! My skillset includes popular game development platforms such as Unity and Unreal Engine, along with programming languages including C, C#, C++ and Python. Additionally I am also well versed in setting up automations using Python, comfortable with developing Rest APIs in Flask and Django as well as developing desktop applications in Unity. I am also certified ISO 27001 ISMS Lead Auditor along with several cybersecurity certifications and can help you with your organization's data protection and cybersecurity compliance challenges. Looking forward to work with you!Java
DjangoBlenderAutodesk 3ds MaxC++PythonUnityUnreal EngineC Want to browse more freelancers?
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