Crystal Developers

Egor Kostenko

Ukraine

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Full Stack Developer with 7+ years of hands-on experience designing, developing, and implementing applications and solutions using a range of technologies and programming languages. I am seeking to leverage broad development experience and hands-on technical expertise in a challenging role as a Full-stack Developer. As a professional developer I have designed and developed a reporting service that improves report generate time from one week to one click., also developed internal details sharing central platform with extended phone app with fast search. I have built route models to visualize locations and map simulators that generate a precise traveling time. I have designed and developed attendance service and project tracking system. During my career I have designed and developed a mailing system that could track and generate bulk emails with distinct content. I have also designed and implemented a comprehensive framework to aggregate test results from various sources and generate a unified report. Here are represented my skills ; They are; JavaScript, CSS, HTML, React ,Redux Mongo , Deployment, Angular, Drupal, Spring, Swift, Scala, Python, Elm, Ruby, C#, Rust , MEAN, Express.js, AngularJS, NodeJS, NextJs, Shopify and much more.

• Hourly Rate$30 / Hr
• Total Earned$24250
• Experience7 Years

Admir Cela

Albania

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I am a Full Stack developer with over 9 years years of experience. I have poficiency in front-end languages like HTML,CSS, Javascript,Swift,JQuery, Angular,Vue,TypwScript and ReactJS and in backend languages as Golang,Java,PHP,Javascript,Python,Ruby,SQL,C#,Rust,Kotlin.I have skills in a wide variety of coding niches, from databases to graphic design and UI/UX management and develop APIs such as Google Maps API, Facebook API,Twitter,Amazon S3 API, Skyscanner Flight Search API, Open Weather Map API and RESTful services.I design database technology to the website so I have excellent knowledge of MongoDB,Oracle and MySQL,and Git. Also I am familiar with Web Design, Photoshop, WordPress, Genesis, Beaver Builder.Also I have experience in wireframing, UI patterns, and user flows.I developed several new user-facing products and work with Angular, C# and NET core,XUL,W3C,Sketch and of course Figma.I work with Adobe XD and Canva for designing and prototyping design concepts.So I can create and execute the overall website architecture design and deploy database technology to the website,integrate front-end user interface with API and optimize website for devices like mobiles and tablets.

• Hourly Rate$30 / Hr
• Total Earned$27375
• Experience9 Years

Angela Stuard

Russian Federation

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I am Full Stack developer with 8 Years of Experience. I love working with Ruby, OO PHP (WordPress, Drupal, anything PHP), Javascript (jQuery, AngularJS, vanilla JS), HTML (HTML3,5, HAML), CSS (CSS2/3, Foundation, Bootsrap, SMACSS, Compass SASS). I can help with any web design and development tasks. Be it e-commerce, social networking, membership or subscription based web, or your need a corporate website, I can help. I also develop custom extensions, widgets for Joomla and Wordpress and I work to setup, configure, customize, troubleshoot, remove hacking and extend any and all extensions/widgets/templates/themes/plugins for Joomla and Wordpress. I also proudly lead an Upwork verified team of website designers and developers - OOGLOO - Web & Beyond Agency . Freelancing is challenging and my objective is to take on any kind of challenge and fulfill the customer requirements with 100% quality work, professional attitude, reliable and trustworthy services. I would like to get an opportunity to discuss your next project and bring even more success to your business. Skills Java 5/6/7 (JSE, Swing, CORBA, Web Services, etc.) - JEE5/6 (EJB3, JSF, Hibernate, etc.) - GWT, Spring, Struts, etc. - And other JSE/JEE-related frameworks - GlassFish, Tomcat, JBoss, Jetty, etc. - JME (CLDC 1.1, MIDP 2.0) and Android - Maven, Ant, etc. - Oracle, MySQL, PostgreSQL

• Hourly Rate$30 / Hr
• Total Earned$17736
• Experience8 Years

Evgenia Rilskaya

Ukraine

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Thank you for visiting my profile. I am very pleasure to help you with my programming services I have been a Full Stack developer for 9 years. Here is my skill sets for you. * PHP, HTML, CSS * Laravel * Codeigniter * Symphony * WordPress * Android * Ios * C++, C# * Swift * Ionic * MySQL * jQuery * ReactJS * VueJS * AngularJS * Python * Management Systems I can spend my full time on freelancer and serve in real time for all days. Best Result will be delivered on Time and on Budget. Let's build the great relationship and go forward the success of your project. Best Regards

• Hourly Rate$28 / Hr
• Total Earned$17435
• Experience9 Years

Yelena Makarenko

Ukraine

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I am a proficient web and app developer having expertise working in both front-end and back-end technologies. I'm a passionate developer always developing and growing my skills. I am familiar with a wide range of programming utilities and languages. I have bachelor's and master's degree in computer sciences. Knowledgeable of backend and frontend development requirements. Handles any part of the process with ease.Through my career I have worked with non-profits, real estate agents, small and big businesses. I have extensive knowledge to assist you with coding scripts like PHP, MySQL, HTML5/CSS3, JavaScript and Bootstrap, C#, MYSQL, MongoDB, Angular JS, Node JS etc. Skills Responsive full stack websites, applications or software Customizing existing projects, fixing bugs Custom Web Applications for your particular business goals Fast delivery React JS Full Stack Development Angular JS Full Stack Development Node JS Full Stack Development Responsive Design Redux in React Map Integration Efficient Programming Fully Responsive Website on All Devices Reusable Components Fast response Clean, tested and documented code Completely met deadlines and requirements Clear communication 100% Client Satisfaction Affordable Rates If you’re interested in getting an idea of how I work and what I create, feel free to message me.

• Hourly Rate$25 / Hr
• Total Earned$21690
• Experience9 Years

Adelyn Otto

Germany

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I am a seasoned Stripe API developer with over 7 years of professional experience, and I'm excited to offer my expertise on this freelancing platform. Throughout my career, I have dedicated myself to mastering the intricacies of the Stripe payment gateway and its API, enabling me to create seamless and secure payment solutions for businesses of all sizes. My comprehensive knowledge of the Stripe API allows me to deliver tailored solutions that precisely match your specific requirements. Whether you need to integrate Stripe into an e-commerce platform, build a subscription-based service, or develop a custom payment solution, I have the skills and experience to bring your vision to life. With a meticulous eye for detail and a passion for clean, efficient code, I prioritize delivering high-quality results that exceed expectations. I am well-versed in various programming languages, including but not limited to Python, Ruby, and JavaScript, enabling me to integrate Stripe seamlessly into your existing tech stack. Moreover, I possess a deep understanding of web security best practices, ensuring that your customers' sensitive payment data is always protected. Collaboration and communication are key components of my work ethos. I pride myself on my ability to effectively communicate complex technical concepts to non-technical stakeholders, ensuring a smooth project workflow and facilitating a transparent client-developer relationship. I am adept at translating business requirements into technical specifications, ensuring that the final product aligns with your objectives. Throughout my career, I have successfully completed numerous Stripe API projects, earning a reputation for delivering exceptional results within deadlines. I am constantly seeking new challenges and opportunities to expand my knowledge and skills, staying up-to-date with the latest industry trends and developments. If you are seeking a highly skilled Stripe API developer who can bring your payment integration dreams to fruition, look no further. I am ready to leverage my extensive experience, technical expertise, and commitment to excellence to help you achieve your goals. Let's collaborate and build something remarkable together! Contact me today to discuss your project requirements and discover how I can assist you in creating a seamless and secure payment experience for your customers. Looking forward to working with you, Adelyn

• Hourly Rate$25 / Hr
• Total Earned$13057
• Experience7 Years