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Hire the best Kotlin Developers in Texas

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  • $45 hourly

    • 5.0/5
    • (12 jobs)
    Java and Spring Framework expert with over 6 years of experience in the software development. If you're looking for a skilled Java developer who can help you build fast, scalable, and high-performance applications, then look no further. Let's work together and bring your project to life. 💻 𝐓𝐄𝐂𝐇𝐍𝐈𝐂𝐀𝐋 𝐄𝐗𝐏𝐄𝐑𝐓𝐈𝐒: ✅ Programming Languages: Go, Java, Kotlin, Swift, React ✅ Technologies: Gin, Viper, Serverless, SpringBoot, Kafka, Akka, Splunk, ELK ✅ Database: DynamoDB, Couchbase, MS SQL, MySQL, Spring Data, DB2 ✅ Source Control, Dev Ops: AWS, Github, Gitlab, Docker, Kubernetes, Helm, OpenShift/RHEL, Jira, qTest, NewRelic, Datadog 🎯 𝐖𝐇𝐀𝐓 𝐒𝐄𝐓𝐒 𝐌𝐄 𝐀𝐏𝐀𝐑𝐓: My commitment is to provide exceptional performance that fulfills your needs, ensuring project delivery within specified timelines while upholding the highest quality and security standards. Reach out today, and together we'll create digital experiences that stand out in the crowd.
    Featured Skill Kotlin
    AWS Development
    Swift
    Apache Kafka
    Kubernetes
    Spring Framework
    React
    API Development
    Spring Boot
    MongoDB
    Java
    Golang
  • $30 hourly

    • 4.9/5
    • (11 jobs)
    👋 I build things that work beautifully and feel alive. Whether it’s a high-performing website, a sleek mobile app, or an engaging animation, I make sure it’s functional, visually stunning, and built to last. With over 5 years of hands-on experience, I’ve worked with businesses in Real Estate, Healthcare, IT, Automotive, and E-commerce to create custom digital solutions that not only look great but also drive real results. What I Do Best: 💻 Web & Mobile Development: ✔ Custom Websites – WordPress, Shopify, Laravel, PHP ✔ Mobile Apps – iOS, Android, React Native, Flutter ✔ UI/UX Design & Prototyping – Figma, Adobe XD, Fully Responsive ✔ Custom CMS & CRM Systems – Tailored to your business needs ✔ API Development & Integration – Stripe, PayPal, RESTful APIs 🎨 2D & 3D Animation: ✔ Animated Explainer Videos & Character Animation ✔ Logo Animation & UI/UX Motion Graphics ✔ GIFs & Animated Prototypes for Presentations ✔ Social Media Animations (TikTok, Instagram, YouTube, Ads) ✔ Basic 3D Animation & Motion Design Why Work With Me? ✅ Straightforward & Reliable – No overpromises, just real, high-quality work ✅ Custom-Tailored Solutions – Every project is unique, and I treat it that way ✅ On-Time & On-Point – Deadlines matter, and so does quality ✅ Visually Striking Animations – Every motion is crafted with precision ✅ Websites That Convert – SEO-friendly, fast-loading, and built for engagement Tech & Tools I Work With: 🛠 Development: PHP, Laravel, JavaScript, React, HTML5, CSS3, Shopify, WordPress, Java, Kotlin, Webflow 🎬 Animation & Motion Graphics: Adobe After Effects, Illustrator, Photoshop, Toon Boom, Lottie If you need a developer who actually listens and delivers work that stands out, let’s connect. Shoot me a message, and let’s build something great together! 🚀
    Featured Skill Kotlin
    Figma
    Shopify
    WordPress
    Supabase
    MongoDB
    Swift
    React Native
    Laravel
    PHP
    ExpressJS
    Node.js
    TypeScript
    Next.js
    React
  • $30 hourly

    • 5.0/5
    • (1 job)
    I'm an Expert Mobile App Developer specializing in Android, iOS, Flutter, and React Native development. With 5 years of experience crafting cutting-edge mobile applications, I'm here to turn your app ideas into reality. As an experienced mobile app developer, I've honed my skills across a wide range of technologies and platforms. My expertise spans Android Development using Java and Kotlin, iOS Development with Swift and SwiftUI, as well as cross-platform development using Flutter and React Native. This versatility allows me to choose the best technology stack for your specific project needs, ensuring optimal performance and user experience. My core competencies include: • Android and iOS native app development • Cross-platform development with Flutter and React Native • User Authentication and Security • In-App Purchases and Payment Gateway Integration • Push Notifications for enhanced user engagement • RESTful API design and integration • Firebase integration (Authentication, Database) • Mobile UI/UX Design • Location-Based Services and Google Maps Integration • Version control with Git/GitHub Throughout my career, I've had the pleasure of working on diverse projects that have yielded impressive results. Some of my notable achievements include: • Boosting app user engagement by 40% through optimized push notification strategies and intuitive UX design. • Developing a fitness app that garnered over 50,000 downloads and maintained a 4.8-star rating within just six months of launch on both iOS and Android platforms. • Leading a cross-functional team to deliver a logistics app that improved delivery efficiency by 35% through real-time tracking and automated route optimization. • Optimizing app performance to reduce load times by 25%, significantly enhancing user satisfaction. • Successfully launching multiple mobile apps across Google Play and App Store, driving substantial user adoption and revenue growth for clients. • Managing end-to-end development of a hybrid e-commerce app, seamlessly integrating payment gateways and multilingual support to cater to a global audience. What sets me apart as an Expert Mobile App Developer is my commitment to delivering not just functional apps, but exceptional digital experiences. I combine technical expertise with a deep understanding of user behavior to create intuitive, high-performance applications that users love and businesses rely on. My work process is collaborative and transparent. I believe in regular communication, agile methodologies, and iterative development to ensure your project stays on track and exceeds expectations. From the initial concept discussion to the final app store submission, I'm there every step of the way, providing insights, solving challenges, and bringing your vision to life. When you choose to work with me, you're not just getting a developer – you're getting a dedicated partner invested in your success. I pride myself on delivering: • Clean, efficient, and well-documented code • Scalable solutions that grow with your business • User-centric designs that drive engagement and retention • Timely project completion without compromising on quality • Ongoing support and maintenance to keep your app running smoothly Whether you're a startup looking to launch your first app or an established business aiming to enhance your mobile presence, I have the skills and experience to help you succeed in the competitive mobile app landscape. Ready to bring your app idea to life or upgrade your existing mobile application? Let's connect and discuss how we can create an outstanding mobile experience for your users. As an Expert Mobile App Developer specializing in Android, iOS, Flutter, and React Native, I'm excited to contribute my expertise to your next project. Don't let your brilliant app idea remain just an idea. Reach out today, and let's start building the future of mobile technology together!
    Featured Skill Kotlin
    GitHub
    Swift
    Google Maps API
    In-App Purchases
    Push Notifications
    Payment Gateway Integration
    RESTful API
    Firebase
    Ionic Framework
    Mobile App
    React Native
    Flutter
    iOS
    Android App
  • $30 hourly

    • 4.8/5
    • (35 jobs)
    I am a versatile and results-driven professional with expertise in web application development, mobile app development, and 2D animation. With over 5 years of experience, I specialize in creating scalable, user-friendly, and visually stunning digital solutions that cater to diverse business needs. Whether you need a custom web app, a cross-platform mobile app, or engaging 2D animations, I bring creativity, technical precision, and a client-focused approach to every project. What I Offer: ✅ Web & Mobile App Development: Proficient in building responsive web applications and cross-platform mobile apps using modern frameworks like React, Angular, Flutter, and React Native. Expertise in full-stack development, including front-end (UI/UX design) and back-end (Node.js, Django, Laravel, databases) for seamless functionality. ✅ 2D Animation: Specializing in creating captivating 2D animations for explainer videos, advertisements, games, and interactive content. Tools: Adobe Animate, After Effects, Blender, and more. ✅ CMS Development: Extensive experience with WordPress, Shopify, Magento, Drupal, and Joomla for building dynamic, content-rich websites. Why Choose Me? ✨ 24/7 Availability & Quick Response: I prioritize clear communication and am always available to address your needs. ✨ Quick Turn-Around Time: Ready to start immediately and deliver projects on time without compromising quality. ✨ Unlimited Revisions: Your satisfaction is my priority—I’ll refine until you’re 100% happy. ✨ 100% Self-Created Designs: Original, custom designs tailored to your vision. ✨ Full Copyright Ownership: I provide complete copyrights upon request. ✨ Money-Back Guarantee: If you’re not satisfied, I offer a hassle-free refund. Let’s Collaborate! Whether you’re looking to build a web app, develop a mobile app, or create engaging 2D animations, I’m here to bring your ideas to life with creativity, technical expertise, and a commitment to excellence. Let’s work together to create something extraordinary! Feel free to reach out via Upwork to discuss your project or ask any questions. Regards, Hamza Raza.
    Featured Skill Kotlin
    Mobile App
    PostgreSQL
    Figma
    Shopify
    WordPress
    Azure DevOps
    MongoDB
    Swift
    React Native
    PHP
    ExpressJS
    Node.js
    TypeScript
    React
    Next.js
  • $129 hourly

    • 5.0/5
    • (7 jobs)
    Hi! I am a 3X CTO for successful PropTech, Real Estate, and AI startup companies. I have built products from 0 to 1 and have scaled them into profitable companies with minimal funding. I have experience leading global teams to deliver high-quality scalable products. With 7 years of software & AI experience, I consider myself an expert in the field and am able to leverage my vast network and knowledge base of the industry. Throughout these years, I have cultivated a long-running small and scrappy team that can also be brought in to help deploy products and scale businesses quickly. I built a successful and profitable property management software company, where I led the design and development. As the Technical Founder, I was responsible for delivering for the customers and managing the build of the entire platform. The stack is built using React, Node.js, and Typescript, and utilizes a custom-built ORM. We leverage the Google Cloud using serverless functions, PubSub, Cloud Tasks, and Firestore DB. Additionally, I lead the mobile development arm of Hair Cuttery, the largest private hair salon company in the United States. I am responsible for both their iOS and Android apps and in the past 7 months have taken their iOS app from a 2.5-star rating to a 4.8 star with almost 3k ratings. Similarly, I have taken their Android app from a 2.2-star rating to a 4-star rating with over 100k installs. I’ve worked across all business sizes and have experience working within a team to deliver high-quality products that fit business needs. Having run multiple businesses and startups, I understand how to operate within tight budgets, and get the most out of domestic and overseas developers while building a strong and cohesive culture that truly delivers value for the business.
    Featured Skill Kotlin
    JavaScript
    iOS Development
    Firebase
    Swift
    Node.js
    Android App Development
    Dialogflow API
    Web Development
  • $65 hourly

    • 5.0/5
    • (17 jobs)
    Are you in need of an exceptional Android developer to bring your app vision to life? You've come to the right place! With over 5 years of hands-on experience in Android app development, I specialize in creating cutting-edge, user-friendly, and feature-rich mobile applications that leave a lasting impact. My Skills and Expertise: 📱 Android App Development: From concept to implementation, I have a proven track record of delivering cutting-edge Android apps tailored to meet specific business needs. ☕ Java and Kotlin: Proficient in both Java and Kotlin, I leverage the power of these languages to write clean, maintainable, and efficient code. 🎨 User Interface (UI) Design: I excel at creating intuitive and visually appealing user interfaces that enhance user experience and engagement. 🔌 API Integration: With a deep understanding of RESTful APIs, I seamlessly integrate various services and functionalities into Android applications. 🚀 Firebase and Real-time Databases: I have hands-on experience with Firebase, enabling real-time data synchronization, push notifications, and cloud storage. ♻️ Refactoring: I understand the importance of code maintainability and employ refactoring techniques to enhance code quality and scalability. 📜 Version Control: Git is an essential part of my development process, allowing for seamless collaboration and code management. ⚡ Performance Optimization: I employ various techniques to ensure optimal app performance, smooth user experience, and minimized resource usage. 🛠️ Testing and Debugging: Rigorous testing and debugging are fundamental to my workflow, ensuring that the final product is bug-free and reliable. Why Choose Me? 🌟 Extensive Experience: With over 5 years in the Android development industry, I bring a wealth of expertise and a proven track record of successful projects. 🎯 Client-Centric Approach: Understanding your unique requirements is my priority, and I work closely with clients to ensure their vision becomes a reality. 📞 Communication: Open and clear communication is vital for project success. I am responsive, attentive, and always available to address your concerns. ⏰ On-Time Delivery: I respect deadlines and ensure timely delivery without compromising on quality. 👨‍👩‍👦 Client Satisfaction: Your satisfaction matters most to me. I'm not satisfied until you are thrilled with the final product. Let's Get Started: I'm excited to discuss your Android app project and collaborate with you to create something extraordinary. Feel free to reach out to me through Upwork's messaging system, and I'll respond promptly. Thank you for considering my profile. Let's work together to make your app vision a reality!
    Featured Skill Kotlin
    JSON
    Database
    Material Design
    Retrofit
    SQLite
    User Authentication
    Java
    In-App Purchases
    Android
    Android App Development
    Camera
    Location-Based Service
    Push Notifications
    Bluetooth
  • $40 hourly

    • 5.0/5
    • (3 jobs)
    Do you want to develop robust scalable software? If so you are in right place. Here is my some accomplishment: - I have help loan origination company to automate they process and scale their business by 100% (10+ million in revenue increase) - I have build robust Point of sale system for small businesses from scratch. - Worked with 20+ major companies in industries like fintech, supply chain and hospitality industry. - I have scaled Mobile, web and desktop application to 100k users. My services include full product lifecycle: Prototype, UI/UX Design Development: Web, Mobile, backend applications QA, Testing Delivery & Maintenance I work with technologies like: mobile (Flutter and React Native) Android Java.kotlin iOS swift Python (Django, FastApi, Flask) Cloud (AWS, Azure, GCP) Postgresql MySQL MongoDB Firebase I work on quality products. That's my commitment.
    Featured Skill Kotlin
    Next.js
    Web Development
    iOS
    Android
    User Authentication
    JavaScript
    MongoDB
    React Native
    Firebase
    Swift
    Dart
    Flutter
    Mobile App Development
    React
  • $45 hourly

    • 5.0/5
    • (18 jobs)
    Tech-savvy professional with 13+ years of experience in frontend & backend development. Demonstrated outstanding skills in performance improvement, technical troubleshooting, and scalable coding. Proven in-depth knowledge in UI/UX development, project architectures, API design, unit testing, database management, and algorithms. Proficient in discussing project with client to meet their requirements. Enjoy collaborating and challenges.
    Featured Skill Kotlin
    Magento
    WordPress
    Shopify
    Redux
    GraphQL
    Node.js
    Swift
    Angular
    React
    JavaScript
    MongoDB
    Java
  • $50 hourly

    • 5.0/5
    • (1 job)
    Experienced Software Engineer with a demonstrated history of working in the financial and e-commerce services industry. Current Android engineer working in Kotlin and advocating for broader use of jetpack compose. In the past lead native chat and search experience for USAA. Included planning and breaking down work in AGILE flow for native team as well as coordinating with sister team in charge of backend services.
    Featured Skill Kotlin
    Agile Software Development
    Android
    Android App Development
    Software QA
    Unit Testing
  • $55 hourly

    • 5.0/5
    • (9 jobs)
    Proficiency in Salesforce CRM, web and mobile app development, featuring expertise in React JS and Native variations, along with Laravel as the preferred backend—a robust PHP framework. My expertise extends from crafting high-performance apps for startups to enterprises, emphasizing seamless user experiences. Utilizing technologies like Lightning Web Components (LWC), APEX, Redux, and React Navigation, I adhere to industry standards for robust, scalable, and visually appealing applications. In Laravel, I seamlessly integrate backend functionalities, emphasizing efficient architecture and performance enhancement. Throughout the development process, I prioritize collaboration, maintaining open communication, and providing regular updates to ensure a successful outcome. Check out my portfolio for evidence of transformative results and let's work together to bring your app vision to life, boosting your brand and business success. Discover how I can assist you in bringing your project to life: 1️⃣ Discovery and Requirements Discussion: Engage in a comprehensive conversation about your project's specifics, including primary objectives, design, and functionalities, and determine the optimal technology stack for implementation, with a focus on leveraging Laravel for robust backend solutions and React and React Native for dynamic front-end experiences. 2️⃣ Project Planning: Based on requirements, craft a detailed work plan outlining development stages, setting clear deadlines, and assessing potential budgets. Collaborate to make adjustments ensuring alignment, considering the seamless integration of Laravel, React, and React Native. 3️⃣ Design and Prototyping: If a design is absent, I'll handle it by creating prototypes and wireframes. Approval of the design and project structure precedes the commencement of development, ensuring a cohesive visual and functional experience across web and mobile platforms. 4️⃣ Development and Testing: Dive into development, creating both client and server components, and if needed, databases. Rigorous testing at each stage ensures top-notch quality, incorporating Laravel's backend capabilities and React/React Native's powerful front-end features. 5️⃣ Regular Updates: Keep you informed with regular updates, providing transparency on the project's progress. Expect insights into the Salesforce Platform, Laravel-backed backend functionalities and React/React Native-driven frontend enhancements. 6️⃣ Post-Release Support: Even after a successful launch, my support persists. Continuous post-release support ensures your project remains relevant and runs smoothly, addressing any Salesforce Development, Laravel, React, or React Native-related maintenance needs. ✔️Salesforce Configurations: Lightning Flows, Approval Processes, Validation Rules, Custom Objects ✔️Salesforce Custom Development: APEX, Visualforce, LWC, JavaScript ✔️Salesforce Products Experience: Sales, Service, Commerce, Field Service, Experience (Community), Revenue (CPQ), Marketing, Mulesoft, Data Cloud, Einstein CoPilot ✔️Agile Methodology: Scrum and SAFE frameworks ✔️DevOps: Copado ✔️ Front End: JavaScript (ES5 and ES6) | TypeScript | HTML5 | CSS3 | Tailwind CSS | React | React-Native | Redux | React Hooks | SaSS/SCSS ✔️ Back End: Laravel | Node.js | Express | Nest.js | MongoDB | Mongoose | MySQL | PostgreSQL | GraphQL ✔️ API Integrations: ChatGPT | Stripe | PayPal | Google | and more... ✔️ Testing/Deployment: Amazon Web Services (AWS) | Firebase | Docker | Mocha | Chai | Jest | DigitalOcean | Vercel ✔️ Development Tools: Git | npm | Webpack | Babel | Agile Methodology | TDD | Nginx 🛠 Maintenance: Optimization and bug fixing If you're intrigued by what we can achieve together, click the "INVITE" or "HIRE" button on my profile.
    Featured Skill Kotlin
    Chatbot
    Machine Learning Model
    AI Model Training
    HTML
    JavaScript
    React
    Node.js
    Laravel
    Web Development
    Swift
    Flutter
    iOS Development
    Android App
    Mobile App
  • $65 hourly

    • 5.0/5
    • (3 jobs)
    I am a passionate software engineer with extensive experience developing applications using Java and Python. I have worked on diverse web, mobile, and desktop projects where I participated in all aspects of the software development lifecycle including estimation, design, coding, documentation, testing, deployment, and support. My key skills include: - Expertise in Java and Python plus frameworks like Spring Boot, Hibernate, Django, and Flask - Experience with ORM libraries and integrating diverse data sources - Knowledge of server-side templating with Jinja2 and Mako - Familiarity with front-end technologies like JavaScript, HTML5, and CSS3 - Understanding of accessibility, security compliance and authentication between systems - Skilled at scalable and event-driven application design - Strong debugging and unit testing abilities
    Featured Skill Kotlin
    Golang
    Oracle
    Spring MVC
    React
    Angular
    JavaScript
    Amazon Web Services
    Flask
    Django
    Hibernate
    Spring Boot
    DevOps
    Python
    Java
  • $40 hourly

    • 5.0/5
    • (6 jobs)
    I develop high-performance, scalable mobile apps designed to streamline your business processes and give you a competitive edge in the mobile-first world. Transform your startup or entrepreneurial vision into robust mobile applications, from initial app idea validation through MVP design and full-scope mobile app development. Specializing in UX/UI design and custom iOS and Android mobile applications, I offer strategic technical consulting to ensure your mobile app project is not only viable but primed for success, minimizing technical debt and enhancing user engagement. ✨ 𝗪𝗵𝘆 𝗣𝗮𝗿𝘁𝗻𝗲𝗿 𝗪𝗶𝘁𝗵 𝗠𝗲: 𝗖𝘂𝘀𝘁𝗼𝗺 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: From MVPs to full-scale enterprise apps, I deliver high-quality, feature-rich products. 𝗦𝘂𝗽𝗲𝗿𝗶𝗼𝗿 𝗔𝗽𝗽 𝗗𝗲𝘀𝗶𝗴𝗻: My commitment to excellent mobile app design ensures a seamless user experience with a focus on UI/UX principles. 𝗦𝘁𝗿𝗮𝘁𝗲𝗴𝗶𝗰 𝗠𝗩𝗣 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: Whether it’s a single-feature MVP or a full-scope project, I build MVPs that effectively validate your business concept and prepare it for wider market introduction. 𝗘𝗻𝗱-𝘁𝗼-𝗘𝗻𝗱 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁: I handle all stages of the app development process, ensuring timely delivery and alignment with your business goals. 𝗢𝗻𝗴𝗼𝗶𝗻𝗴 𝗦𝘂𝗽𝗽𝗼𝗿𝘁 𝗮𝗻𝗱 𝗢𝗽𝘁𝗶𝗺𝗶𝘇𝗮𝘁𝗶𝗼𝗻: I provide continuous maintenance and updates to enhance functionality and address the evolving needs of your business. 🤝𝗪𝗛𝗔𝗧'𝗦 𝗧𝗛𝗘 𝗡𝗘𝗫𝗧 𝗦𝗧𝗘𝗣? Send me a message or invite me to your job on Upwork and let’s make your app the next big thing in the market!
    Featured Skill Kotlin
    User Authentication
    React Native
    Dart
    JavaScript
    Firebase
    Swift
    Java
    iOS Development
    Flutter
    Smartphone
    Android App Development
    iOS
    Mobile App Development
    Android
  • $40 hourly

    • 5.0/5
    • (2 jobs)
    🌟 Experienced Mobile App Developer with Eight Years in Software Development 🌟 Need an expert to develop or scale your mobile app? With 8+ years of experience in building high-performance apps for startups and enterprises, I specialize in Kotlin, Flutter, and React Native. My mission is to deliver clean, scalable, and user-centric solutions tailored to your needs. I thrive in startup environments and excel in both cross-platform and native mobile app development. My expertise spans from feature development to scalable architecture implementation, ensuring seamless and efficient delivery of your project goals. I also have a strong background in team management, fostering collaboration, and ensuring project success. Key Achievements: • Delivered 10+ mobile apps with 100,000+ cumulative downloads. • Reduced app load times by 30% through performance optimizations. • Built and deployed 5+ MVPs within 3 months for fast-paced startups. • Successfully integrated complex health APIs, including Garmin SDK, Apple HealthKit, and Google Health. What I Offer: Feature Development & Maintenance: • Clean, maintainable code that aligns with your project requirements. UI/UX Design & Animation: • Intricate UI/UX design for mobile and web platforms with advanced animations. Scalable Architectures: • Implementation of robust architectures tailored for growth. End-to-End Product Development: • From requirement gathering and brainstorming to deployment and support. Agile Project Management: • Efficient management of sprints, stand-ups, and progress tracking. Compliance & App Store Readiness: • Ensuring all apps meet Google Play and Apple App Store guidelines. Technical Expertise: Kotlin: • Frameworks: Android Jetpack, Koin, Coroutine, Retrofit, Compose • Tools: Android Studio, Gradle, Kotlin Multiplatform Mobile (KMM) Flutter: • State Management: Bloc, GetX, Riverpod, Provider, Async_Redux • Cloud Computing & Backend: Firebase, Auth0, AWS • Databases & APIs: GraphQL, Firestore, Realtime Storage, MongoDB, MySQL, Hive • Authentication: Google, Facebook, Apple, Twitter, GitHub integration • Networking Libraries: Retrofit, Chopper, OpenAPI • Serialization: Freezed, JsonSerializable • Advanced Features: Google Maps, MapBox, GPS integration, Live Tracking React Native: • Libraries: Redux, MobX, React Navigation, Axios • Native Modules: React Native CLI, Native Code Integration iOS Swift: • Frameworks: UIKit, SwiftUI, Combine, CoreData, CoreLocation • Tools: Xcode, Fastlane, CocoaPods, Carthage Why Choose Me: • Proven Track Record: Extensive experience delivering high-quality apps. • Compliance Knowledge: Expertise in app store policies for smooth approvals. • Transparent Communication: Regular updates and proactive collaboration. Let’s Collaborate: Ready to bring your vision to life? Let’s discuss how I can help your project succeed. Click “Invite to Job” to get started!
    Featured Skill Kotlin
    GitHub
    Swift
    JetPack
    Flutter
    Android Studio
    Website to Mobile App Conversion
    Mobile App Development
    App Development
    iOS Development
    React Native
    Flutter Stack
    Android App Development
  • $80 hourly

    • 5.0/5
    • (17 jobs)
    I am a professional mobile developer with 8 years of experience working with big names and on major projects. I am dedicated to developing apps for a variety of concepts and business purposes, utilizing advanced technologies such as Swift, Java, Kotlin, Flutter, FlutterFlow, and React Native. During my career, I have contributed to the development projects of Wayfair, the second-most popular online furniture e-commerce app after Amazon, and the renowned fitness app FitOn. In the Wayfair project, I enhanced map and location service functionalities and improved the user interface. I also consistently provided patch sets and bug fixes, significantly boosting the app's stability and performance. Following continuous revisions and updates, both apps have become premier platforms with millions of users. Having worked on everything from large-scale apps with millions of users to brand-new indie apps, I have gained a deep understanding of mobile app development and design. Whether the project involves enhancing an existing app or developing an original idea into a product, I am committed to leveraging my experience and skills to deliver the best support possible.
    Featured Skill Kotlin
    Objective-C
    Native App Development
    JSON
    In-App Support
    Firebase
    Flutter
    React Native
    iOS Development
    Google Maps API
    Swift
    Android App Development
    AWS Amplify
    RESTful API
  • $45 hourly

    • 0.0/5
    • (0 jobs)
    Hello! I'm Jeremy, a highly skilled developer specializing in Artificial Intelligence, Machine Learning, and Mobile integrations. I have extensive experience with fine-tuning, prompt engineering, data acquisition and cleaning, PyTorch, Google Cloud, and AWS Sage Maker. I look forward to working with you on your project.
    Featured Skill Kotlin
    NumPy
    PyTorch
    Mobile Payment Functionality
    Deep Learning
    Artificial Intelligence
    Map Illustration
    GeoAPI
    Model View ViewModel
    RESTful API
    Stripe
    In-App Purchases
    Android
    Node.js
    Android Studio
  • $22 hourly

    • 4.8/5
    • (2 jobs)
    ✅ 20+ years of TECH experience ✅ Expert E-commerce Developer and Solution Providers ✅ Custom (𝐧𝐨𝐧-𝐞𝐜𝐨𝐦𝐦𝐞𝐫𝐜𝐞) Developers ✅ Custom PHP Developers ✅ Certified Python Developers ✅ API Development and Integration ✅ Experienced Mobile App Developers ✅ Generative AI ✅ Digital Marketing Services (𝐒𝐄𝐎, 𝐏𝐏𝐂, 𝐒𝐌𝐌 𝐚𝐧𝐝 𝐄𝐌) ✅ 150+ Project Completed Successfully. ✅ Cost Effective Solutions ✅ Graphic Designer | WordPress | Woo-Commerce | Shopify | PHP - Laravel | CodeIgniter | Python | CRM / ERP | Mobile App Development | React | React Native | Flutter | API Development | Generative AI | Digital Marketing | SEO | PPC | Social Media Marketing | Email Marketing | Affiliate Marketing | Graphic Designer. - Tired of hiring unprofessional or individual resources / startups? - Tasks are not delivered on time? - Bearing losses due to non supportive TECH team? Seat Back and RELAX... You are at RIGHT PLACE NOW!!! Hi, My name is Abdul Hafeez and I am a 𝐌𝐈𝐂𝐑𝐎𝐒𝐎𝐅𝐓 𝐂𝐄𝐑𝐓𝐈𝐅𝐈𝐄𝐃 𝐏𝐑𝐎𝐅𝐄𝐒𝐒𝐈𝐎𝐍𝐀𝐋 - 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞 and the Founder and CEO of a 𝐎𝐍𝐄 𝐓𝐄𝐂𝐇𝐍𝐎𝐋𝐎𝐆𝐘 𝐒𝐄𝐑𝐕𝐈𝐂𝐄𝐒 - an eCommerce specialised company that provides 360 solutions to enhance your Ecommerce store, develop custom solutions, ERP system and market them digitally. 𝐅𝐄𝐖 𝐄𝐗𝐀𝐌𝐏𝐋𝐄𝐒 𝐎𝐅 𝐇𝐎𝐖 𝐖𝐄 𝐂𝐀𝐍 𝐀𝐒𝐒𝐈𝐒𝐓 𝐘𝐎𝐔 ✅WooCommerce / Shopify theme development and customization ✅WooCommerce / Shopify plugin development and customization ✅WooCommerce / Shopify custom features development ✅WooCommerce / Shopify upgrade & migration ✅API Development and integration ✅Shopify Store Setup ✅Shopify Apps Integration & Configuration ✅Multi-store setup and Customizations ✅Multi-vendor marketplace setup & customization ✅Payment & Shipping gateways integration ✅Websites Performance / Speed Optimization ✅CRM / ERP Development Services ✅Generative AI Customization Services ✅Digital Marketing Services (𝐒𝐄𝐎, 𝐏𝐏𝐂, 𝐒𝐌𝐌 𝐚𝐧𝐝 𝐄𝐌) ✅Code Review and Analysis ✅Troubleshooting and bug fixing ✅Server Setup and Optimisation (AWS, Google Cloud, Azure) ✅On-going web development support and maintenance We serve as the foundational support team to providing you with seamless and robust solutions to foster sustained growth for your business. From 𝐝𝐞𝐬𝐢𝐠𝐧𝐢𝐧𝐠 𝐭𝐨 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐢𝐧𝐠 𝐭𝐨 𝐦𝐚𝐫𝐤𝐞𝐭𝐢𝐧𝐠 𝐭𝐨 𝐦𝐚𝐧𝐚𝐠𝐢𝐧𝐠 𝐛𝐮𝐬𝐢𝐧𝐞𝐬𝐬 𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬, we work tirelessly to provide unwavering TECH support and ensures the solutions is functional always. When you're managing the business websites / apps / software that are integral to generating revenue demands a reliable partnership with seasoned professionals for unwavering technical support. Our dedicated approach to ensuring the utmost simplicity and minimal stress in your project entails the following efforts: ✔️Attention To Detail ✔️Experienced, Track Record / No Babysitting ✔️Accountability / No Ghosting ✔️Satisfaction Guarantee ✔️Faster results ✔️24*7 Support 𝐊𝐞𝐲 𝐑𝐞𝐚𝐬𝐨𝐧𝐬 𝐭𝐨 𝐂𝐡𝐨𝐨𝐬𝐞: ❇️ 20+ years of experience as TECH Solutions Developer / Architecture ❇️ 25+ Experienced & Certified Team Members ❇️ Successfully completed 150+ Projects ❇️Smooth Release Management System ❇️100% Transparency using Agile / Waterfall Approach. ❇️ Cost Effective Solutions ❇️100% Job Success and Satisfaction rate. ❇️𝐅𝐑𝐄𝐄 post Live Support for 1 month. Our commitment is to deliver a successful project while maintaining transparent and open communication throughout the entire process. This will lead to that enhances your business revenue and long term business relationship as your tech partner. Let's start working together!
    Featured Skill Kotlin
    WordPress e-Commerce
    WordPress Website Design
    WooCommerce
    WordPress Development
    Machine Learning Model
    Certified Associate in Python Programming
    Android App Development
    Objective-C
    Swift
    Mobile App Development
    iOS
    Python
    API Integration
    Java
  • $60 hourly

    • 0.0/5
    • (0 jobs)
    I am professional mobile developer who is building native and cross-platform mobile applications for iOS and Android devices, and has a deep understanding of programming languages, mobile app architecture, and ux design principles. I can help with: - iOS and Android apps - Website with SEO - Scalable database and backend
    Featured Skill Kotlin
    Figma
    Website
    AWS Application
    SwiftUI
    Swift
    Firebase
    Laravel
    Node.js
    React
    Android
    Flutter
    iOS
    Database Management
    Database
  • $100 hourly

    • 0.0/5
    • (0 jobs)
    A passionate and driven developer, whether I'm at work, at home, or out at a bar, you can usually find me with my laptop open, working on some code. I love any opportunity to expand my programming knowledge, but I am most at home with Android. I have published apps on both iOS and Android, and my current goal is to do more backend development. Most recently, I was at Verizon where I worked on a professional installer app and a self installer app for 5G Home Internet. Prior to that, I was at Veryable, a startup, where we were changing the game for on demand hiring and Bottle Rocket where I built high quality apps for well known companies including Mary Kay and Southwest Airlines. Previously, I was the lead Android developer for another startup, Yvolver, where we developed a rewards platform for mobile games. Before that, I was the Quality Assurance Lead at Trivie. While there, I worked on Trivie: Battle of Wits for iOS & Android. I also previously worked at Robot Entertainment and performed testing for Orcs Must Die (PC & Xbox360), Hero Academy (iOS), Orcs Must Die 2 (PC), and the Hero Academy port to PC.
    Featured Skill Kotlin
    Software Architecture
    REST API
    App Development
    iOS
    Android
    Swift
    Objective-C
    JavaScript
    HTML
    SQL
    Python
    Java
  • $45 hourly

    • 5.0/5
    • (1 job)
    Highly skilled and accomplished Software Engineer with over 9+ years of expertise in Android native development. Proven track record, demonstrating strong leadership skills and the ability to drive successful project outcomes. A dedicated professional committed to delivering high-quality software solutions, leveraging strong problem-solving skills and a deep understanding of industry best practices. • Refactored Application to use Kotlin ( MVVM, Kotlin Coroutine) • Migrated app shared-preference storage to use Jetpack DataStore • Strong knowledge of Android SDK and Android development tools. • Experience building modern Android applications using Android Jetpack. • Strong knowledge of Android SDK and experience building modern Android applications using Android Jetpack Compose • Proficiency in Agile, Kanban, and Scrum development frameworks. • Solid understanding of Test-Driven Development (TDD) • Experience with CI/CD tools and processes. • Excellent problem-solving skills and ability to troubleshoot complex issues. • Strong interpersonal and communication skills. • Demonstrated ability to facilitate technical decisions and discussions.
    Featured Skill Kotlin
    Android Room Persistence
    Android UI Design
    JetPack
    Product Development
    SDK
    Android SDK
    Android Studio
    Android App Development
    Java
    Android
  • $20 hourly

    • 5.0/5
    • (2 jobs)
    Experienced Senior Android/IOS Developer | 10+ Years of Expertise in Creating High-Performance Mobile Applications Welcome to my profile! With over 7 years of experience as a Senior Android Developer, I specialize in building robust, user-friendly, and high-performance mobile applications. My journey in Android development has equipped me with deep expertise in creating seamless, scalable apps tailored to meet both business needs and end-user expectations. 🔹 Key Skills & Expertise: Android Development: Proficient in Java, Kotlin, and Android SDK, with hands-on experience in building and maintaining complex mobile applications. UI/UX Design: Strong understanding of Material Design principles, ensuring intuitive and visually appealing user interfaces. API Integration: Expertise in RESTful API integration, ensuring smooth communication between mobile apps and backend services. Performance Optimization: Skilled in optimizing app performance, ensuring minimal latency, efficient memory usage, and a smooth user experience. Testing & Debugging: Proficient in automated testing (JUnit, Espresso) and debugging to ensure high-quality code and app stability. 🔹 Highlighted Projects: Mortgage Lending Payments App: Developed a highly efficient Android module for mortgage payments, streamlining the payment process for users and enhancing customer satisfaction. [Another Notable Project]: [Brief description of another significant project, highlighting your role and impact]. 🔹 Why Work With Me? Client-Centric Approach: I focus on understanding client needs and delivering solutions that exceed expectations. Strong Communication: Clear and consistent communication is key to successful project delivery, and I ensure you’re always in the loop. Timely Delivery: Committed to delivering high-quality work within deadlines, ensuring your project stays on track. 🔹 Let’s Collaborate! Whether you need a new Android app built from scratch, require updates to an existing app, or need someone to troubleshoot and optimize your current app, I’m here to help. Let’s connect and discuss how I can contribute to your project’s success.
    Featured Skill Kotlin
    Objective-C
    Swift
    Apple Xcode
    Architectural Design
    Material Design
    Retrofit
    JetPack
    Android SDK
    iOS Development
    Android App Development
    SQLite
    XML
    Dagger
    Java
  • $40 hourly

    • 0.0/5
    • (0 jobs)
    Results-driven Senior Software Engineer with seven years of experience specializing in iOS, Android, and React Native development. Skilled in leading cross-functional teams and delivering high-quality software solutions. Proficient in Swift, Objective-C, Kotlin, and Java, with expertise in REST and SOAP APIs, Git version control, SQLite, Redux, and CoreData. Experienced in CI/CD pipelines with GitHub Actions and Circle CI, as well as unit testing and end-to-end testing. Well-versed in Agile methodologies and software architecting/design. Adept at implementing best practices to optimize performance and user experience.
    Featured Skill Kotlin
    End-to-End Testing
    Unit Testing
    SOAP API
    REST API
    Java
    Objective-C
    Swift
    TypeScript
    iOS
    Android
    React Native
  • $150 hourly

    • 0.0/5
    • (0 jobs)
    I’m a developer experienced in building backend services for small and medium-sized businesses. Whether you’re trying to win work, list your services, or create a new online store, I can help. Knows Kotlin (Java), Gradle, Spring Boot, Mongo DB (Search engines & Generative AI) and React JS. Full project management from start to finish Regular communication is important to me, so let’s keep in touch.
    Featured Skill Kotlin
    Search Engine
    Spring Boot
    Smartphone
    Generative AI
    Amazon Web Services
    MongoDB
    Architecture
    Architectural Design
  • $45 hourly

    • 0.0/5
    • (0 jobs)
    I love to write software, nowadays especially when it comes to consumer end mobile apps. It all started when I was 12 years old and I saw a C++ book my dad had. I found out how to write C++ code from reading that and by following an example algebraic expression calculator that takes a given input and outputs a number. Creating a program that solved some problem was really cool to me. Soon after I found out about programming games and then boy did my "career" in programming fly. My interest in software only grew and I was always trying to make little games or other projects using different engines. A few years later, I go to college and major in Computer Science. This was around the time smartphones were in their infancy. I really liked the nature of creating apps that deal with some specific problem or type of entertainment that goes directly to the consumer, and so I started making Android apps. Soon after I got a job as an Android developer. That job turned into something I really believed in and I ended up rewriting the Android and iOS apps for the company. And now we come to well... now. I'm currently working on a passion project of mine that is a mobile app/game for both Android and iOS. My passion for software development has only grown since the start and my desire to make something useful/fun and of high quality that a user can experience is what drives me forward. I really like to pay attention to detail on whatever app I'm working on since I believe that is what makes something stand out and is what the user wants. So that's my experience with software development in this large and interesting field.
    Featured Skill Kotlin
    PostgreSQL
    SQLite
    Apple Xcode
    JetBrains IntelliJ IDEA
    Android Studio
    Vert.x
    Swift
    Java
    libGDX
    OpenGL
    iOS
    Android
  • $20 hourly

    • 5.0/5
    • (1 job)
    Hello welcome to my profile. I hold 11+ years of expertise in making life easy for people by developing most efficient and outstanding Android and iOS mobile apps, website and providing SEO link building service. We will help you with an idea to prototype & UIUX design, development, testing, and Free support and maintenance - the complete product development life cycle. Proficient in a technical stack like Kotlin, python, Html CSS, and Flutter dart, I'll create the best custom mobile app solution along with a web-based admin panel to manage the platform for all domains and niches.
    Featured Skill Kotlin
    UI/UX Prototyping
    Bootstrap
    Back-End Development Framework
    Front-End Development Framework
    GitHub
    Firebase
    CSS
    HTML5
    Python
    Django
    Web Development
    Web Application
    Android App Development
    App Development
  • $60 hourly

    • 0.0/5
    • (0 jobs)
    Hello, As a senior developer with expertise in React Native and Flutter, I specialize in creating high-performance, scalable, and beautiful mobile apps. With 10 yeas of experience in hybrid mobile app development, I deliver seamless cross-platform solutions that run smoothly on both iOS and Android devices. My skill set includes building intuitive user interfaces, integrating APIs, optimizing app performance, and providing timely updates. I am passionate about crafting custom mobile experiences tailored to your business needs, ensuring your app not only meets your expectations but exceeds them. My technical expertise also extends to web development with React, Angular, and Vue, giving me a well-rounded approach to full stack development. Whether you're looking to build a brand-new app. improve your existing product, or develop a complex solution, I'm here to help you achieve your goals with a focus on quality, user experience and efficiency. Let's collaborate to bring your vision to life.
    Featured Skill Kotlin
    GraphQL
    iOS Development
    Firebase
    Firebase Cloud Firestore
    Mobile App Development
    SwiftUI
    Swift
    Java
    Android
    Redux
    Dart
    Flutter
    React Native
    React
  • $35 hourly

    • 0.0/5
    • (0 jobs)
    Hi, I’m Ethan Harrell, an Android Developer specializing in Jetpack Compose, Kotlin, and AI-powered mobile experiences. I’m the creator of Star Task, a productivity app with 20K+ downloads and 6K+ active users, featuring: AI-Powered Reminders – Smart task automation & custom alarms. Rock-Solid Firebase Integration – Cloud sync, database structuring, & push notifications. Custom UI/UX in Jetpack Compose – Smooth, modern, and high-performance layouts. Engagement & Gamification – AI-driven user retention features & habit-forming mechanics. Whether you need a brand-new Android app, feature upgrades, AI integration, or bug fixes, I’m here to help. I write clean, scalable code and focus on seamless user experiences that drive engagement. Why Work With Me? Proven Track Record – Built & launched an AI-powered app with thousands of users. AI & Automation Specialist – Experience integrating AI-driven features. Firebase, Jetpack Compose, Kotlin Mastery – Modern Android development. Reliable & Communicative – Clear updates and fast turnaround. Let’s build something great together. Message me to discuss your project!
    Featured Skill Kotlin
    JetPack
    Android App
    AI Implementation
    AI Chatbot
    AI App Development
    Mobile Game
    App Development
    Android Studio
    REST API
    Firebase
    Mobile App
    Android App Development
    Mobile App Development
    Artificial Intelligence
  • $85 hourly

    • 5.0/5
    • (1 job)
    I'm an expert software engineer with over 16 years of experience specializing in the development of mobile applications for medical devices, specifically those classified as class I, II, and III. Throughout my career, I have been deeply involved in the entire development lifecycle, from initial concept and design through to 510(k) FDA submissions and post-market release. This includes extensive work on documentation, risk analysis, requirements gathering, and usability studies. I have successfully led multiple projects, ensuring compliance with stringent regulatory standards and delivering high-quality, reliable software. My work has consistently focused on creating robust and secure applications that interface seamlessly with medical devices over BLE (Bluetooth Low Energy). My technical expertise extends to architecting, developing, testing, and deploying these applications in diverse and challenging environments. While I am new to Upwork, I bring a wealth of industry-specific knowledge and a proven track record of delivering results. I understand the critical importance of precision and reliability in medical device software, and I am committed to maintaining the highest standards of quality and compliance. In the past year, I have expanded my skill set to include the development of generative AI solutions. I have been working with the latest models and APIs from ChatGPT, Claude, and Gemini including local models running on high powered GPU's to create innovative applications for the medical device software development space. This has allowed me to stay at the forefront of technological advancements and integrate cutting-edge AI capabilities into my work. My approach to projects is professional and collaborative. I am known for my ability to communicate complex technical concepts clearly and effectively, ensuring all stakeholders are on the same page. I believe in being open and transparent about my capabilities and limitations, and I am always willing to provide honest feedback about the best path forward for any project. I thrive on challenging projects that push the boundaries of what is possible. My colleagues can attest to my dedication, technical skills, and ability to deliver under pressure. I am approachable, personable, and bring a sense of humor to my work, creating a positive and productive environment. From developing secure mobile applications and interfacing with BLE devices to navigating the complexities of FDA documentation and leveraging the latest in AI technology, my diverse expertise ensures comprehensive solutions for the most demanding projects. I look forward to bringing my skills to your next challenge.
    Featured Skill Kotlin
    AI Agent Development
    Retrieval Augmented Generation
    Vector Database
    Risk Analysis
    Software Architecture & Design
    Vertex AI
    OpenAI API
    Prompt Engineering
    Software Architecture
    Medical Device
    Regulatory Compliance
    LangChain
    Python
    Mobile App Development
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