Java Developers untuk diupah di United States
Menunjukkan 47 hasil
Freelancers Ditaja
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With over 10 years of hands-on experience as a full-stack developer, I am dedicated to delivering cutting-edge web solutions that transform businesses. Proficient in a wide range of front-end and back-end technologies, I specialize in creating seamless user experiences, optimizing performance, and implementing...With over 10 years of hands-on experience as a full-stack developer, I am dedicated to delivering cutting-edge web solutions that transform businesses. Proficient in a wide range of front-end and back-end technologies, I specialize in creating seamless user experiences, optimizing performance, and implementing scalable architectures. I combine my strong problem-solving skills with a keen eye for detail to craft clean and efficient code. My passion for innovation, collaborative mindset, and drive for continuous learning enable me to stay ahead of industry trends and deliver exceptional results. Let's collaborate and bring your web projects to life! - Back-End Development Java (Spring Boot), PHP (Laravel, Symfony, CI, WP, core etc), Node.js Python (Django, Flask) Ruby (Ruby on Rails) RESTful API development Database management (SQL, NoSQL) - Front-End Development HTML5 CSS3 JavaScript React.js Angular Vue.js Responsive Web Design CSS preprocessors (e.g., Sass, Less) - Full-Stack Development Combination of front-end and back-end technologies Integration of client-side and server-side functionality - Responsive Web Design Media queries Flexbox Grid systems Mobile-first design -UI/UX Design Wireframing and prototyping User research and usability testing Interaction design User-centered design principles - E-Commerce Development Shopify WooCommerce Magento Payment gateway integration Shopping cart functionality - Content Management Systems (CMS) WordPress Drupal Joomla Theme development and customization Plugin development - Web Security Secure coding practices Input validation and sanitization Authentication and authorization Cross-Site Scripting (XSS) prevention Cross-Site Request Forgery (CSRF) protection - API Development and Integration RESTful API design principles API documentation (Swagger, OpenAPI) Authentication and authorization (OAuth, JWT) Third-party API integration - Performance Optimization Caching (browser caching, server-side caching) Image optimization (compression, lazy loading) Minification and concatenation of assets Database query optimization Performance profiling and monitoring kurang
Upah chatgptsuperpow8
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I work as a fulltime freelancer and have a masters degree in AI. I'm a fan of Blockchain and dApps and have worked on a lot of projects in AI/ML, Blockchain and fullstack web development for 14+ years. Skills: - Programming(Python/PHP/JavaScipt) - Database(MySQL/PostgresQL/MongoDB/Cassandra/DynamoDB) - Big...I work as a fulltime freelancer and have a masters degree in AI. I'm a fan of Blockchain and dApps and have worked on a lot of projects in AI/ML, Blockchain and fullstack web development for 14+ years. Skills: - Programming(Python/PHP/JavaScipt) - Database(MySQL/PostgresQL/MongoDB/Cassandra/DynamoDB) - Big Data(Hadoop/Spark/ElasticSearch) - AI(Tensorflow/Caffe/DeepMind/NLTK) - Web Development(React/Django/Flask/Vue/Nuxt/Next/JQuery/Laravel) - Blockchain(Ethereum/Hyperledger/Binance Chain) Experiments: - Amazon AWS(EC2/Lambda/Serverless apps/S3/...) - Amazon MWS API && Scraping - Social media analysis - PostGIS & PGRouting - OpenStreetMap - Odoo - Twilio & RingCentral - P2P crypto exchange - Web Scraping - Web automation(selenium) kurang
Upah helmot
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Although the two worlds of web site design and web programming are separate and not equal, it has been my experience that they are interwoven and interconnected in many ways. To effectively program, the programmer needs to be aware of some design elements and practices. To effectively design, the designer needs to...Although the two worlds of web site design and web programming are separate and not equal, it has been my experience that they are interwoven and interconnected in many ways. To effectively program, the programmer needs to be aware of some design elements and practices. To effectively design, the designer needs to have an awareness of programming requirements, syntax, and browser-related issues. Technically speaking, I am more of a programmer. kurang
Upah obsurf
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My name is Derek and I am a talented mobile app developer based in LA. With expertise in iOS and cross-platform development, I build robust native and hybrid apps using Swift, Java, JavaScript and more. Leveraging UIKit, Jetpack and leading tools, I craft beautiful, user-friendly experiences. My key skills...My name is Derek and I am a talented mobile app developer based in LA. With expertise in iOS and cross-platform development, I build robust native and hybrid apps using Swift, Java, JavaScript and more. Leveraging UIKit, Jetpack and leading tools, I craft beautiful, user-friendly experiences. My key skills include: - iOS app development with Objective-C and Swift - Cross-platform dev with React Native, Flutter - REST API integration and backend dev - UI/UX design and animation - Third-party SDK implementation - Testing, debugging and optimization I have successfully led and launched major React Native apps on iOS and Android. As lead iOS dev for DogCloud's massage app, I built the iOS version, connected hardware to cloud services, created an intuitive UI/UX focused on usability, coordinated across platforms, and provided ongoing improvements post-launch. Beginning my career in 2012, I have built apps across diverse business domains - from FinTech and IoT to social good. I am deeply passionate about collaborating with clients, understanding needs and delivering top-notch experiences that exceed expectations. Let's have a conversation about your project goals and how we can transform your vision into reality through a feature-rich iOS, Android or cross-platform app. kurang
Upah derekjlaporte
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Senior Web/Mobile Developer with over extensive experience in various SDLC phases such as requirements gathering, analysis, design, implementation, maintenance of software applications and testing Client/Server and Web applications. Experience in developing Web applications using Ruby On Rails, React, Node.js, HTML5,...Senior Web/Mobile Developer with over extensive experience in various SDLC phases such as requirements gathering, analysis, design, implementation, maintenance of software applications and testing Client/Server and Web applications. Experience in developing Web applications using Ruby On Rails, React, Node.js, HTML5, CSS3, JavaScript and MongoDB, SQLite, PostgreSQL. Demonstrated ability to satisfy upper management through reliability, commitment, and problem resolution. kurang
Upah robb89
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As a seasoned developer with five years of experience, I have consistently demonstrated a strong commitment to excellence in the software development field. My expertise spans a wide range of technologies and programming languages, allowing me to adapt swiftly to new challenges. I've successfully contributed to...As a seasoned developer with five years of experience, I have consistently demonstrated a strong commitment to excellence in the software development field. My expertise spans a wide range of technologies and programming languages, allowing me to adapt swiftly to new challenges. I've successfully contributed to numerous projects, delivering high-quality code, meeting tight deadlines, and collaborating effectively with cross-functional teams. kurang
Upah tonytheexpert1
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skysystemsinc skysystemsinc
$20 USD / jam
Expert Web & Mobile App Designers and DevelopersUnited StatesWelcome to our Profile! Your Gateway to Exceptional Digital Experiences! We are a digital Agency known as Sky System, Inc. based in Raleigh, NC, USA. We are new to this platform but you can easily find us on other platforms with good reviews and ratings. We are a dynamic team of expert full-stack developers, UX/UI...Welcome to our Profile! Your Gateway to Exceptional Digital Experiences! We are a digital Agency known as Sky System, Inc. based in Raleigh, NC, USA. We are new to this platform but you can easily find us on other platforms with good reviews and ratings. We are a dynamic team of expert full-stack developers, UX/UI designers, SEO engineers, QA engineers, and Project Managers. Our skills span across various domains, with particular expertise in: ⭐ UX/UI Designing: Figma, AdobeXD, Sketch, and InVision Studio. ⭐ CMS: WordPress, Shopify, Webflow, Wix, and Squarespace. ⭐ Frontend - JavaScript/Typescript, HTML/CSS, Tailwind CSS, React, React Native, Flutter, Next, Vue, and Angular. ⭐ Backend - Node.js, Nest.js, PHP/Laravel. ⭐ Databases - MongoDB, MySQL, NoSQL, and PostgreSQL. ⭐ Cloud services - AWS. ⭐ Tools - Git, GitHub, bug trackers, Jira. We have extensive experience collaborating with various startups, medium-sized enterprises, and large-scale businesses across diverse industries. Also, we have great expertise in creating custom coding platforms/Software such as ✅ Non-Profit, Crowdfunding, NGO ✅ HRM, Payroll, Workforce Management system ✅ Task Management system / Project Management system ✅ Real Estate Investor/ Agent Portals ✅ Healthcare / TeleHealth / Doctor / Patient Portal ✅ Job Board ✅ E-commerce Marketplaces ✅ SaaS platforms ✅ ERP and CRM System Why Choose Us for Your Business? 1. Innovative Excellence: Elevate your business with our innovative solutions, setting you apart in the market. 2. Client-Centric Approach: Your success is our focus. We tailor services to meet your unique needs for a personalized experience. 3. Proven Track Record: Trust in our expertise with a proven track record of successful projects and satisfied clients. 4. Timely Delivery, Quality Results: Expect on-time delivery without compromising on the quality of our work, ensuring your project's success. Let's collaborate and elevate your digital presence to new heights! Whether it's a stunning website, an efficient e-commerce platform, or a robust application, we are here to turn your ideas into reality. Regards, Team Sky Systems, Inc. kurang
Upah skysystemsinc
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As a Software Engineer, I use my 8+ years of experience and expertise in Java, and Spring boot, web flux technologies to develop web applications for client-server environments and add functionalities to existing applications. I have successfully designed, developed, and deployed cloud-native applications using AWS...As a Software Engineer, I use my 8+ years of experience and expertise in Java, and Spring boot, web flux technologies to develop web applications for client-server environments and add functionalities to existing applications. I have successfully designed, developed, and deployed cloud-native applications using AWS services such as EC2, S3, Lambda, DynamoDB, ECS, and Fargate for the Certification Projects. I am also certified in AWS development and Big Data from Edureka, which demonstrates my proficiency and passion for learning new skills and technologies. I have worked on various domains and frameworks, such as Hadoop, Kafka, Angular, and Restful web services, and have implemented best practices and design patterns to ensure high-quality and efficient code. I have also collaborated with a cross-functional team to conduct user requirements analysis, code reviews, defect tracking, and technical documentation. I have strong communication, problem-solving, and interpersonal skills, and I enjoy working on challenging and innovative projects that make a positive impact. I have experience in working with various databases, such as Oracle, MySQL, and HBase, and data processing tools, such as Kafka and Hadoop. I am passionate about creating innovative and scalable solutions that meet the needs and expectations of the clients and the users. I am also committed to learning new technologies and best practices to enhance my professional growth and development. Certified Big Data Expert from Edureka (Feb 2018 – Certificate ID-GRFSE4E5). Certified AWS developer from Edureka (Oct 2023 – Certificate Id – TN38QSN4) Verify at www.edureka.co/verify. kurang
Upah savithananda
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SOFTWARE DEVELOPER with over 10 YRS EXPERIENCE and am looking forward to working with you . MY EXPERTISE INCLUDE Certified Ethical Hacking: Comptia a+, Comptia Security +, comptia Networking +, Stolen Accounts Recovery, Server Operating Systems: Windows Servers 2003 - 2022, Ubuntu, Debian, RHEL, CentOS, Symbian OS,...SOFTWARE DEVELOPER with over 10 YRS EXPERIENCE and am looking forward to working with you . MY EXPERTISE INCLUDE Certified Ethical Hacking: Comptia a+, Comptia Security +, comptia Networking +, Stolen Accounts Recovery, Server Operating Systems: Windows Servers 2003 - 2022, Ubuntu, Debian, RHEL, CentOS, Symbian OS, Android, IOS, Mac OS, Unix, Linux. Penetration Testing: Network Service, Web Application, Wireless Network, Social Engineering, Mobile Penetration Testing, Black box Testing, White box Testing, Grey box Testing. Firewalls: Windows firewall,ISA/Forefront TMG, MikroTik, PFSense, Zywall and other Routers; Database servers: MySQL, PostgreSQL Cloud Computing Platforms: AWS Amazon Web Services, Microsoft® Azure, Google Cloud Platform(GCP) . Self-Hosted Clouds: NextCloud, OwnCloud, Seafile. Web Security Security Awareness, Security Analyst, Security Vulnerability, Security Framework, Network Vulnerability, Engineer. Containers: Docker, Windows Subsystem for Linux, Kubernetes Cluster. Web servers: IIS, APACHE, NGINX Mail servers: POSTFIX, EXIM, Microsoft Exchange 2000 to 2019, QMAIL ,Zimbra ,Mail Enable , SmarterMail, hMail. Virtualization: Microsoft® Hyper-V, VMware Hypervisors (ESXI, vCenter), Proxmox, VirtualBox. 24 hours availability Unlimited revisions Fast response Microsoft® Certified kurang
Upah dogstar100
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Internative123 Internative123
$20 USD / jam
Empowering Businesses With Exceptional Digital SolUnited StatesWe are your one-stop creative and digital service solutions agency. With a wealth of experience in providing the best quality services and top customer service, we have mastered the art of: 1. Web Development 2. Mobile App Development 3. Social Media Marketing 4. Search Engine Optimization 5. Graphic Designing 6....We are your one-stop creative and digital service solutions agency. With a wealth of experience in providing the best quality services and top customer service, we have mastered the art of: 1. Web Development 2. Mobile App Development 3. Social Media Marketing 4. Search Engine Optimization 5. Graphic Designing 6. Video Editing/Animation 7. Content writing 8. UI/UX design services We believe in building high-value, We connect, explore, create, empower, and grow together! We are proficient in several development tools, including PHP, HTML/HTML5, CSS, React JS, WordPress, JavaScript, Shopify, and Laravel—all with fantastic usability, and we give new perceptions of creative art with Figma UI/UX, Blender, and Unity. We create more realistic animation with Powtoon, Adobe After Effects, and Blender. To bring more traffic to your website, we work with Semrush, Yoast, Mockplus, Ahrefs, Mangools, and Office Suite. We Are Experts in Delivering: 1. Functional and Responsive Designs 2. Friendly & Easy to Use UI/UX Interfaces 3. Unreal 2D & 3D video animations. 4. Visually attractive graphics and layouts 5. 100% Search Engine Friendly URL structure and SEF patches applied 6. Social Media Integration, Contact Forms, Google Maps, Newsletter Subscription & Mailing list 7. Organic and SEO-optimized content. 8. Website Maintenance, Upgrades, and Support. Why should you choose us? Here are some compelling reasons: We provide a plethora of successful reasons why businesses choose us. We draw on years of experience in digital and creative services in over 120 countries, including: Unique and innovative skills Award-winning experts 24/7 back-end support Our business is built on a foundation of professional excellence and integrity. What sets us apart from others is our commitment, work ethic, and superior deliverables with fast turn-around times, quick timelines, and extended support and post-project deployment. We believe effective communication is our secret ingredient. So, book your slot to supercharge your project. We would love to hear from you! Visit our website to learn more about us! https://www.internativelabs.com/ kurang
Upah Internative123
