Hire the best Web Services specialists

Check out Web Services specialists with the skills you need for your next job.
Clients rate Web Services specialists
Rating is 4.7 out of 5.
4.7/5
based on 3,336 client reviews
  • $125 hourly
    FHIR certified. Mirth Certified. Jitterbit. 16 years building complex HL7, FHIR API, csv, flat file healthcare interfaces. Standard services include: - affordable price to setup your Epic and Cerner dev code accounts and build necessary FHIR api calls as an automated Postman collection including the Oauth requirements( this gives your team a jump on healthcare deep integration) - setup an efficient process for you to convert or map csv, HL7, or database fields to FHIR resources and then deliver to Azure, AWS, GCP, sftp, REST or any application - setup process so you can convert incoming FHIR resources to any data format for your application to ingest. - HL7 v2 integration of all types including: ADT, VXU (vaccine), ORU(imaging or lab), ORM(imaging and lab orders), SIU(scheduling), DFT(charges), MDM(docs), RDE(medications) and many other types of HL7.
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    FHIR
    Mirth Connect
    API Integration
    Healthcare Interoperability
    Health Level 7
    Medical
    RESTful API
    SQL
    Web Service
  • $110 hourly
    Frustrated by developers who don’t understand the scope, write messy code, or are perpetually late in completing tasks? My clean code, excellent written and verbal communication skills, and dedication to completing tasks in a timely manner helps you stay on-track on on-budget. I can manage back-end services and ensure a seamless interchange of data between the server and your users. I can develop and code all server-side logic and respond to requests from front-end developers. My in-depth knowledge of object-oriented programming, understanding of MVC designs, and working knowledge of front-end technologies including HTML5, JavaScript, and CSS3 ensure your project’s success. As a top-level Full-Stack Developer, I can design and build efficient back-end modules while seamlessly integrating front-end technologies. Capabilities: • Conduct analysis of website and application requirements. • Write back-end code and build efficient back-end modules. • Develop back-end portals with an optimized database. • Troubleshoot application and code issues. • Integrate data storage solutions. • Finalize back-end features and test web applications. • Update and alter application features to enhance performance. Knowledge and Experience: • Knowledge of PHP web frameworks including Symfony, Laravel, and CodeIgniter. • Knowledge of Python web frameworks including Django & Flask. • Knowledge of front-end technologies including CSS3, JavaScript, and HTML5. • Understanding of object-oriented programming. • Previous experience creating scalable applications. • Proficient with code versioning tools including Git, Mercurial, CVS, and SVN. • Proficient with code deployment tools including CI/CD, Docker • Familiarity with SQL/NoSQL databases. • Project management. • Excellent problem-solving skills.
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    WordPress
    Back-End Development
    SOAP
    Laravel
    Mautic
    Content Management System
    PHP
    jQuery
    Web Service
    AJAX
    RESTful API
    Vue.js
    Web Development
    WordPress Plugin
    API Development
    Web Design
  • $56 hourly
    Over the last decade I have been serving my clients with the best solutions related to Databases, Big data, Data mining, Data scraping, Web-Automation, Data Visualization, APIs and Desktop/Web applications. I take great pride in solving problems with cutting edge technologies. I have served more than 100 clients (small to enterprise level) on Upwork and their reviews below are the assets I have. If you are looking for top notch services, send me your requirements and I will get back to you with a complete document explaining the approach needed for your project. Please do not send me generic/default upwork invitations. I love it when clients explain their requirements and I can come up with specific solutions for them. Top notch services and communication guaranteed. All projects, are money back guaranteed and have a 3 months of free warranty. Tools and Technologies: Mongo Db, Cassandra, Hadoop, Elastic search, C#.net, ASP.net, Java, Python, Macros, Microsoft plugins etc Thank you for taking time to review my profile.
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    API Integration
    Web Service
    HTTP
    Data Engineering
    Robotic Process Automation
    Bot Development
    API Development
    Web Scraper
    Data Scraping
    Automation
    Data Mining
    C#
  • $61 hourly
    FULL-TIME UPWORK FREELANCER. THIS IS MY DAILY JOB. Wordpress Experience • Design and layouts using Elementor, Divi, Visual Composer, Etc • PHP Development / Debugging • Custom Plugins / Plugin modification • Theme Customization with CSS • Site optimization • Multipart Conditional Logic Forms • Site Transfers Specialties • Website redesign / Platform transfer / Squarespace to Wordpress • Mobile Friendly Websites / Responsive • Website Optimization Cloud applications • G-Suite / Workspaces • Google Cloud DNS • Google Drive • Dropbox Networking • Domain setups and transfers • TCP/IP / DNS / VPNs • Email spam correction Elementor and Divi Expert, Wordpress Web Design, PHP, HTML, and CSS with extensive experience building, supporting, troubleshooting and optimizing within the Wordpress, Squarespace, and Wix frameworks. I've worked independently as a Wordpress web designer for 12 years specializing in Wordpress websites that are minimal, fast, and responsive. I can modify plugins and customize PHP to make your Wordpress site do most anything. In other roles I've provided support for TCP/IP/DNS/SMTP, web hosting services, domain transfers, email server spam correction and similar. What I do: I collaborate, consult, and provide support to entrepreneurs who run small to medium sized businesses that want to establish, change or refine their online identities. Hire Me For: Designing, optimizing, streamlining, organizing, and otherwise making sense of websites, code, content and the like. I've thrived in website revamps where I'm given creative control or a clear concise style to follow. My sites are clean, fast, and visually appealing. Where else I do well: Before I began consulting I worked as a corporate IT Pro doing everything from desktop support to managing a service desk with staff located throughout the United States. My background as a network admin makes me well adept at working with Google Cloud Solutions and troubleshooting TCP/IP or DNS issues with email or domains Industries I've worked with: Fin-Tech Insure-Tech Real Estate Defense Contractors Online Education Architects Interior Designers Life Coaches References and recommendations available on request
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    WordPress Plugin
    macOS
    phpMyAdmin
    WordPress Development
    Google Apps Script
    cPanel
    TCP/IP
    Website Optimization
    Web Service
    DNS
    WordPress
    Divi
    PHP
    Elementor
    WooCommerce
  • $30 hourly
    I am a developer experienced in both Fullstack and MEAN Stack development. Simplifying complex technical ideas into user-friendly interfaces is my passion. The user interface and experience are crucial for connecting with your customers. I'd be thrilled to assist in crafting HTML structures and dynamic components that add vibrancy to your websites, delighting both visitors and users. Please note: I am unwavering when it comes to ensuring high quality. - I'm skilled in PHP, JavaScript, MySQL, HTML5, and CSS. - Proficient in AngularJS, NodeJS, MongoDB, and Hybrid App development. - An API expert. - My approach is rooted in technical prowess. - I take pride in being a programmer who values proper grammar. - My utmost priority is maintaining top-notch quality in all my work. Let's collaborate to amplify your business's digital presence and success.
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    Adobe XD
    Bootstrap
    PSD to HTML
    Web Service
    SQL
    Node.js
    AngularJS
    MediaWiki
    JavaScript
    CSS
    MySQL
    WordPress
    Laravel
    CodeIgniter
    PHP
  • $20 hourly
    🌟Top Rated Plus freelancer on Upwork with successful work history and 7000+ hours worked 🌟Quality work, timely delivery and long term engagement 🌟Responsive in communication 🌟Support even after project completion I am an expert PHP Web Developer/Designer and certified HUBSPOT professional (familiar with CMS/COS) more than 7+ years of experience in integration and customization of WordPress, Woo-commerce, Shopify, Magento, Joomla and other platforms. Till date, I have created so many websites, most of which required custom-designed plugins, extensions, themes, and code website from scratch. 🎯Experience and expertise in following:- 1) HubSpot Specializations: ******************************* - Redesign of Website from other platforms like HTML/WordPress - PSD or HTML/CSS to Hub-Spot COS templates - Email Templates Design and Integration - Blogs Content Creation and Management - Custom modules using HUBL language - Landing Pages with beautiful forms 2) WP Services Includes: **************************** - PSD to WordPress Conversion - Customization of WordPress Site - WordPress Theme Development - Develop themes with the help of latest technologies and security updates so that your website can be secured with the latest security update. - Migrate website to WordPress -Landing page, Upcoming product launch pages and eCommerce store set up 3) Shopify Platform: ********************** - Theme Design and Creation - eCommerce store design/develop - Theme Customization and third party API integration - Bug fixing, speed optimization and responsive design 4) Expertise with Magento ******************************* - Magento Extension Development. - Magento Speed Optimization. - Magento Theme Development. - Magento Upgrade Service. - Responsive Web Design. - eCommerce Website Design. 5) Proficient in Wix website builder ------------------------------------------ - Full Development of website - Design and Implement Landing pages - Recreate web pages - Minor changes to site and add details Feel free to get in touch via message or sent me an invite for interview and I will get back to you as soon as possible. Regards! Surbhi Sharma
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    CSS
    API Integration
    Website Development
    Web Service
    WordPress Development
    Shopify
    HubSpot
    Zoomla
    OpenCart
    Project Management
    Smarty
    Magento
    Yii
    CodeIgniter
    WordPress
  • $40 hourly
    I'm a full-stack developer with having over 9+ years of experience in Java technologies. Good hands-on design, development, implementation, support, and optimization of the application. Use Object-oriented techniques and software engineering best practices including design review, code review, and code re-factoring. Experienced with the full software development life cycle (SDLC) including requirement gathering, prototyping, debugging, testing, and deployment of the web application. Good experience in agile software development methodologies (scrum, sprint plan, timeline, etc.). The strong idea about the deployment process and tools like Maven, Jenkins, AWS. Participate in the gathering and reviewing of business requirements and translate them into functional or technical specifications. Strong development experience in designing highly scalable, high performing with extremely high transaction and storage requirement systems. ✅ Technical Summary: Java: J2SE, J2EE, JDBC, REST, Servlets, Swing, AWT, Java Beans, Java Mail, JMS. ORM: Hibernate, Spring JdbcTemplate, Spring Data Frameworks: Spring MVC, Spring Boot, Spring Integration, Spring Security, Struts RDBMS: PostgreSQL, MySQL, Oracle, MSSQL NoSQL: ElasticSearch, Neo4J, MongoDB, Redis, Memcached AWS: Lambda, S3, CloudFront, EC2, Elastic Beanstalk, RDS, and many other services by AWS. JavaScript: TypeScript, JQuery, NodeJS , Angular JS, Angular 6 Design: Bootstrap 3, Custom CSS Design, Media Query, HTML5, JSP, Thymeleaf Test Tools: JUnit, Spring Test, Mockito, MockMVC, Integration Test, Unit Test Scraping: Jsoup, Html Unit, Selenium Third-Party Integration: Twilio, Social Media Integration, Payment Integration, and others. Data Science & Analytics: Data Extraction, Data Mining, Data Processing, Data Visualization ✅ Client's Feedback: ⭐⭐⭐⭐⭐ "Parth has good experience in both backend and frontend technologies. He is willing and capable of learning new skills, and implementing them in live projects. He has been vary available in just brainstorming possible solutions to unrelated tasks. Parth works with very minimal guidance, which really helps in saving a lot of customers time, in planning the requirements. Needless to say, he is a complete professional in project management, be it delivery or team communications. I would highly recommend him for your next project." ⭐⭐⭐⭐⭐ "Parth is a hard worker and always meets deadlines ahead of schedule. I'd highly recommend him to anyone looking for high quality web development work!" ⭐⭐⭐⭐⭐ "Very good experience, he solved some problems we can't solve by ourself in a very good and fast way! Good communication and perfect adherence to schedule" ⭐⭐⭐⭐⭐ "Parth has delivered the work within the time agreed. I appreciate very much about his availability, commitment to schedule, flexibility in dynamic situations and co-operation in the implementation. I would look forward to work with Parth again in the future and would recommend him very much for web site development." ⭐⭐⭐⭐⭐ "Parth is an extremely efficient and thorough programmer. He always delivers high quality code very quickly. I would recommend Parth to anyone needing backend development." ⭐⭐⭐⭐⭐ "Parth is sensational to work with, exceptionally knowledgeable, goes above and beyond for his customer. In addition provides sound direction and clean, working code. Highly recommend for full stack development. Very much looking forward to working with him again." And many more :) All feedback you can check in my work history. Thank you, Parth
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    Web Service
    Data Scraping
    Spring Security
    MongoDB
    Amazon Web Services
    Java
    Web Development
    Microservice
    Google Chrome Extension
    Hibernate
    API Integration
    PostgreSQL
    Spring Framework
    Angular
    Browser Extension
  • $40 hourly
    Hi, I am a freelance developer with over 5 years of experience in developing web apps and services with focus on cloud-based software using microservice and event-driven architecture. I am proficient with cloud and web-based technologies and have extensive experience in working with the following technologies: - AWS technologies (EC2, Elastic Beanstalk, DynamoDB, S3, Amplify, Lambda, etc.) - Docker and Kubernetes - Python (Django, Flask, Data mining, Data analysis, Data visualisation, Automation) - Node.js (Web Services development using Express.js and MongoDB / MySQL, Postgres, etc.) - GoLang and Microservices (REST, gRPC, HTTP/2) - Front-end (React.js, Vue.js) - NoSQL & SQL based databases I work on the projects I take up with great dedication and attention to detail, and always deliver within deadlines without any compromise on quality. If you are interested in my skillset and expertise, don't hesitate to get in touch with me to discuss your project. Thanks!
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    Amazon Web Services
    Backend Rest API
    RESTful API
    Amazon DynamoDB
    TypeScript
    JavaScript
    Python
    Node.js
    UX & UI
    AWS Application
    React Native
    Flutter
  • $65 hourly
    ✅ ♛ TOP RATED ♛ freelancer on UpWork Excellent IT professional with a lot of experience in the software development area. I have a Master's degree in Computer science, Artificial Intelligence. ✅ Over 12+ years of work experience as .net developer  ✅ ASP.NET MVC (C#), asp.net core 2-3, JavaScript, AJAX, LINQ, MS SQL, WPF, C# Winforms, HTML, HTML5, Ajax, jquery,  .net framework ✅ AngularJs 1.6, Angular 4 ✅ MSSQL Server, T-SQL ✅ ORMS: Entity Framework, Nhibernate, Dapper, Linq to Sql ✅ Microsoft Azure, blob storage, deployment, app services etc. ✅ Amazon Web Services. ✅ unit tests. ✅ Generation of Excel files using DOCX lib ✅ software architecture ✅ VueJs +nodejs/web api c# ✅ Angular 4 ✅ Integration with social networks Facebook, Youtube, Instagram ✅ have experience in implementation of Naive Bayes, K-Means, KNN algorithms, Accord.NET framework. ✅ creation of dashboards using d3js ✅ availability 24/7 I built a lot of web applications from scratch that were successfully released. I can easily learn any framework that you need and start using it in your projects. Please contact me for any questions.
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    D3.js
    ASP.NET Web API
    Node.js
    Vue.js
    jQuery
    Angular 5
    JavaScript
    AngularJS
    .NET Framework
    C#
  • $25 hourly
    I am working as a senior JAVA developer. I have more than 10 years of software development experience. I have the vast experience in the following fields a) Design and development of enterprise level applications b) Web services and message queues (both restful and Soap) c) Reporting frameworks d) Test Driven development e)Relational and NoSQL databases f) Data Integration tools ie. SSIS I believe in the client satisfaction and quality of services.
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    RESTful API
    SQL Server Integration Services
    MongoDB
    Spring Framework
    Oracle Database
    Hibernate
    BIRT
    JasperReports
    Jakarta Server Faces
    J2EE
  • $35 hourly
    I'm a developer from Ukraine and my main field of interest is chatbots. For now, I'm good at making chatbots for: - Facebook - Telegram - Skype - Slack - Viber - Website I'm using my own rapid development platform to run chatbots on dedicated servers which cuts development and deployment time, as well as writing code from scratch for client's servers.
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    Slack
    Facebook Development
    Dialogflow API
    Web Service
    API Development
    Telegram API
    Python
    JavaScript
    PHP
    MySQL
    Chatbot Development
    ManyChat
    Laravel
    Natural Language Processing
    Blockchain
  • $20 hourly
    Product Architect. Expert in Wordpress | Magento | Laravel | Shopify | Node & Angular JS | React JS | Rest API | Python | Zendesk Help Center | Agile CRM | ZOHO | Twilio ⚡️30+ satisfied clients, ⭐️5.0 Feedback ⚡️4000+ hours worked on Upwork ⚡️Native or Bilingual 👋🏼I’m a web development guru & Full Stack developer with 5+ years of experience. Here are 🔥3 major characteristics of my work 🔥based on the feedback from my work history section: ✅ STRONG WORK ETHIC: “easy guy to work with”, “code is clean and elegant”, “spotless communication”, “active participation with ideas and feedback”, “without supervision”. ✅ OUTPERFORMING: “final product exceeded my expectations”, “went the extra mile”, “delivered very high-quality code in a very short timeframe”. ✅ QUICK DELIVERY: “delivered ahead of schedule”, “in record time”, “met each deadline”, “delivered work quickly with high quality as agreed”. ⤴️Those are the exact words of my customers about my work, with whom I have built trustworthy and long-lasting partnerships. You can be one of them 😉 I have created over 50 web-projects from scratch using: • Wordpress (for 20+ complex websites), • HTML5 CSS Bootstap, • REST API with services Like Google APIs , Google clouds, Zendesk Rest APIs & zendesk crm, Agile Crm, Twillio Rest APIs with IBM Watson, Carrier Services(UPS$USPS, Easypost, RMA Return Portal, Goshippo), ZOHO CRM, Zoho Desk & ZOHO Creator, Speech To Text services, Dialogflow API.ai (for 10+ web applications websites), • Magento with updated version(for 10+ shopping websites), • Scrapping Data(With API & Python), • Shopify | Big-Commerce(for 5+ websites with custom extension & API). • Node & Angualar JS (for 5+ websites). Among my clients are the companies of different sizes and fields, so it’s most likely that I have already built whatever you plan to. My time zone - GMT +5:30 🌍 (India), but I have successfully worked with clients from Europe, North & South America, and the Middle East, Asia. Don’t waste your time scrolling through hundreds of other profiles. You found here what you were searching for 🔍✅ Contact me now, so we can have a free consulting session where we can discuss all the details & I give the professional recommendations for your web project! 😊 Best regards, Simant Sharma.
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    Zendesk API
    jQuery
    WordPress
    BigCommerce
    AJAX
    Zoho CRM
    Shopify
    Twilio API
    PHP
    Google APIs
  • $50 hourly
    Welcome to my profile! As an Expert Angular Developer, I specialize in front-end development using Angular, TypeScript, and modern web technologies. With over 20 years of experience in web application development, I have honed my skills to deliver exceptional results. Core Competencies: - Angular Development: Proficient in all versions, including Angular 2+, AngularJS, and Angular Material. - Front-End Technologies: Expertise in HTML5, CSS3, JavaScript, and TypeScript. - Responsive Design: Skilled in creating layouts using Bootstrap and CSS Flexbox. - Performance Optimization: Experience in optimizing web apps for speed and efficiency. - Cross-Browser Compatibility: Ensuring seamless functionality across various browsers. Professional Highlights: - Developed numerous highly interactive and responsive web applications using Angular, enhancing user experience and client satisfaction. - Successfully led a front-end team in a large-scale SaaS project, implementing agile methodologies and best coding practices. - Consistently achieved high-performance scores in web applications, focusing on speed and SEO optimization. Why Choose Me? - Problem Solver: Adept at tackling complex coding challenges with innovative solutions. - Quality Focused: Committed to delivering code that is both efficient and maintainable. - Client-Centric: Excellent track record of client satisfaction and clear communication. I am passionate about staying updated with the latest trends in Angular development and front-end technologies. If you're looking for a dedicated professional to take your web presence to the next level, let's connect and discuss how we can achieve your goals together!
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    Back-End Development
    Ethereum
    DApps
    web3.js
    Chat & Messaging Software
    Blockchain
    Emerging Tech Consultation
    Angular
    CSS 3
    JavaScript
    React
    Angular 5
    Node.js
    AngularJS
  • $100 hourly
    Senior Software Engineer with +10 years of experience in software development. Designed and developed systems and services starting from system analysis, system design, implementation, and testing phases ending with deployment process. Expert in Ruby on Rails, Java, JavaScript, EmberJS, and C#. Professional experience with RDBM (MySQL, PostgreSQL) and NoSQL (Redis, Mongodb, Dyanmodb). Expert with architecting systems using micro-services, messaging platforms (Kafka, RabbitMQ, Sidekiq). Good experience with cloud services including AWS, Google Cloud, Digital Oceans platforms. Self-motivated and quick learner for new technologies. Strong background in system development life cycle, Agile methodology, algorithms and design patterns. Excellent Interpersonal skills, outstanding problem solving and decision making skills as well as management skills.
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    Apache Kafka
    C#
    Docker
    Agile Software Development
    SQL
    RESTful API
    React
    Java
    JavaScript
    Ruby on Rails
  • $35 hourly
    🎯 Handcrafted Practical Web Scraping Tools ✅ Web Scraping ✅ API Integration ✅ Web Automation ✅ Data Mining « If what you need is in my skill set, consider it done » Frameworks and Tools: ✔︎ Selenium ✔︎ Scrapy ✔︎ Beautifulsoup4 ✔︎ Requests ✔︎ Regular Expressions I specialize in: - Python, JavaScript - Flask, Django - HTML, CSS, BootStrap - WordPress ...
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    Data Extraction
    Docker
    SQL
    Automation
    SQLAlchemy
    Web Service
    Web Crawling
    Web Crawler
    Web Development
    Flask
    Django
    Python
    Scrapy
    Data Scraping
    Web Scraper
  • $12 hourly
    I’m a full time SEO specialist who's developed and managed the SEO strategy for both small & large businesses. As an advertising and analytics junkie, I'm an enthusiastic creative with an analytical mind. I have a passion for strategizing and launching well-planned digital advertising campaigns while crafting content for websites, social platforms and mass media. Understanding that SEO is important for your website is the easy part. Higher rankings equal more traffic which equals more leads and sales. The tough choice is whether you are ready to invest in quality SEO. I highly encourage you to check out my portfolio and see my impressive track record. === My Services === ✔ Link building ✔ Keyword Research ✔ SEO Audit ✔ On-page/technical SEO ✔ High-Level Competitors Analysis ✔ SEO Strategy Development ✔ Content consulting ✔ Online Reputation Management ✔ SEO & Internet/ PPC / Email Marketer ✔ Social Media Marketing I am also very familiar with Clickfunnels or Leadpages and can build out your funnels for you and set up your autoresponders. Work with me today and let me get you the results that are critical to your online business success. Thank you so much.
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    SEO Keyword Research
    Google Tag Manager
    Google Merchant Center
    SEO Strategy
    SEO Audit
    SEMrush
    WordPress SEO Plugin
    SEO Backlinking
    Campaign Optimization
    Search Engine Optimization
    Search Engine Marketing
    Social Media Marketing
    Google Analytics
    Google Ads
    Campaign Management
  • $120 hourly
    Top 1%; part of the UpWork's Expert-Vetted program. ✅More than 100 completed projects on UpWork 🇺🇸Available for calls during business hours 🎓4 AWS Certifications: Professional Solutions Architect (result is 945 out of 1000), Professional DevOps Engineer (915), Machine Learning Specialty, Cloud Practitioner In short, the solutions I created are used by millions of users every day. I could build a web, mobile or desktop application using Serverless Computing, conforming to the principle of the least privilege under version control for each function (Pay-per-use AWS or Google Cloud infrastructure that scales indefinitely). When I code either the Frontend or Backend solutions, the experience I have defined the prioritization of the characteristics for the product: 1. Simplicity (readability). ---- all frontend services I create are event-driven with the FaaS infrastructure or in rare cases BaaS. ---- I write in strict TypeScript (if you don't know TypeScript, it is the same JavaScript plus type safety to increase stability). 2. Technical scalability ---- Comparing to containerized microservices, where parts are connected to each other, FaaS development allows to create completely independent functions. It is easier to manage and to make changes as you split the functionality into much smaller blocks. ---- FaaS can scale indefinitely, so any load the cloud provider (such as AWS) could handle is supported. -------- If you have 0 customers today, your bill is $0, comparing to microservices, where you have to have at least one container running $25/month. A typical project is eight containers. -------- If you have a billion customers tomorrow, FaaS auto scales horizontally to handle the new load automatically, with the pricing of an optimized solution close to $2-5/million requests for ALL infrastructure combined. 3. Size ---- The size of the bundled assets needs to be small as it affects the operating costs (you are charged by millisecond). ---- I have created tens of different custom Webpack solutions for all types of possible cases to minimize and optimize the bundles, including code splitting, tree shaking, finding the most appropriate target for the JavaScript (or TypeScript transpilation), image minification and lazy-loading (PNG, JPEG, SVG, etc), service workers, manifest, etc. -------- and even the updating process of the objects in a file hosting (such as AWS S3) to upload only those assets that have changed. -------- I have worked on many projects, every time trying to find something else to improve, so the solutions are extremely well optimized. 4. Performance ---- when I had projects to optimize for performance, I have created a lot of custom solutions as public solutions are for everyone and, therefore, typically suboptimal for a particular case. I create SPAs, conforming to PWA standards, and frontend plugins using React.js. I follow Component Driven Development (CDD) together with Visual Test Driven Development. For that, I use PlayWright and Storybook. When writing styles, I use CSS-in-JS (primarily using Emotion library). The Desktop app development involves also Electron, but the overall process is the same. That is the reason why it is easy to convert my solutions to distribute as a desktop app. When creating mobile apps, I use either React Native or create hybrid web-based solutions with Capacitor.js. 🔒Backend: I am a strong proponent of Serverless Computing, who has extensive experience with FaaS and BaaS, automatically generating IAM rules and cloud services, and conforming to the principle of the least privilege for each function/service. In regards to HTTP APIs, I create: - RESTful APIs covering them in tests and preparing for adoption by frontend devs via password-protected documentation over web endpoints where the frontend devs are able to observe and interact with Swagger UI that conforms to the OpenAPI 3.0 specification. - GraphQL. Created in all possible ways: custom with plain GraphQL library (no Apollo or other wrappers), with Apollo; in Programmatic and Declarative ways I automate provisioning of infrastructure (IaC) using AWS CDK and Google Deployment Manager configs, so that it takes one CLI command to create the defined as code cloud infrastructure. Project management/Tracking I am used to daily reporting and knowing that communication is the key, I constantly try to improve clients' experience. I know best methods in version control and I conform to them, doing PRs, releases, keeping multiple branches, and using stashes. ---- I have automated branching & PR requests, as well as connected bots for notifying about changes in corporate chats. The code I write goes through automatic code-styling processing that improves readability and overall quality of the provided work. I use: ESLint and Prettier for all automated code formatting needs. Respectfully, Olzhas
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    React Native
    JavaScript
    Browser Automation
    AWS IoT Core
    iOS Development
    GraphQL
    Hybrid App Development
    Android
    TypeScript
    Desktop Application
    DevOps Engineering
    DevOps
    Cross-Browser Testing
    AWS Lambda
    Amazon DynamoDB
    React
    Node.js
    AWS Application
  • $30 hourly
    😎 Ok, why choose Jose Zapata, in other words, me? Simple. I'd focus on the important thing, just as increasing your business to another level, creating software with clean code, and creating web solutions in data entry by crawling and scraping with high quality at a good price. Your data be in good hands, because, will be saved in a CRM, where you can see all information, edit, create by automation, or delete fast as a backend solution: - Data Entry - Data Scraping - CRM Data Entry - Excel Data Manipulation Reports - Sender Email - creation Environments Google API My second name is ASAP, and do not hesitate to contact me and speak about your idea. No time wasted. Regards Jose Zapata
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    Angular 6
    HTML
    MySQL
    React
    JSON
    TypeScript
    Adobe Photoshop
    Material Design
    API Development
    Adobe Illustrator
    Laravel
    Web Service
    PHP
    CSS 3
  • $70 hourly
    Full stack developer, react, vue, play framework, PHP, WordPress, R, Data Visualisation, Scala, Kubernetes, terraform, AWS, GCP and many more!
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    Akka
    R
    Kubernetes
    Vue.js
    Data Management
    NestJS
    Terraform
    Node.js
    Java
    React
    PostgreSQL
    JavaScript
    TypeScript
    Scala
    Neo4j
    GraphQL
  • $400 hourly
    I excel at analyzing and manipulating data, from megabytes to petabytes, to help you complete your task or gain a competitive edge. My first and only language is English. My favorite tools: Tableau, Alteryx, Spark (EMR & Databricks), Presto, Nginx/Openresty, Snowflake and any Amazon Web Services tool/service (S3, Athena, Glue, RDS/Aurora, Redshift Spectrum). I have these third-party certifications: - Alteryx Advanced Certified - Amazon Web Services (AWS) Certified Solutions Architect - Professional - Amazon Web Services (AWS) Certified Big Data - Specialty - Amazon Web Services (AWS) Certified Advanced Networking - Specialty - Amazon Web Services (AWS) Certified Machine Learning - Specialty - Databricks Certified Developer:
 Apache Spark™ 2.X - Tableau Desktop Qualified Associate I'm looking for one-time and ongoing projects. I especially enjoy working with large datasets in the finance, healthcare, ad tech, and business operations industries. I possess a combination of analytic, machine learning, data mining, statistical skills, and experience with algorithms and software development/authoring code. Perhaps the most important skill I possess is the ability to explain the significance of data in a way that others can easily understand. Types of work I do: - Consulting: How to solve a problem without actually solving it. - Doing: Solving your problem based on your existing understanding of how to solve it. - Concept: Exploring how to get the result you are interested in. - Research: Finding out what is possible, given a limited scope (time, money) and your resources. - Validation: Guiding your existing or new team is going to solve your problem. My development environment: I generally use a dual computer-quad-monitor setup to access my various virtualized environments over my office fiber connection. This allows me to use any os needed (mac/windows */*nix) and also to rent any AWS hardware needed for faster project execution time and to simulate clients' production environments as needed. I also have all tools installed in the environments which make the most sense. I'm authorized to work in the USA. I can provide signed nondisclosure, noncompete and invention assignment agreements above and beyond the Upwork terms if needed. However, I prefer to use the pre-written Optional Service Contract Terms www [dot] upwork [dot] com/legal#optional-service-contract-terms.
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    CI/CD
    Systems Engineering
    Google Cloud Platform
    BigQuery
    DevOps
    Apache Spark
    Web Service
    ETL
    Data Science
    Predictive Analytics
    Docker
    SQL
    Amazon Redshift
    Tableau
    Amazon Web Services
  • $25 hourly
    Hi there 👋👋👋 I am enthusiastic developer looking for challenges and an interesting project 🤟🤟🤟 My core competency lies in complete end-to-end solutions of a new project, using the following skills: ✔️ PHP ✔️ Laravel Framework ✔️ Codeigniter Framework ✔️ Zend Framework ✔️ Elasticsearch ✔️ Javascript ✔️ jQuery ✔️ Vuejs ✔️ AngularJS ✔️ Nodejs ✔️ SQL ✔️ No SQL ✔️ Git ✔️ Bootstrap ✔️ HTML ✔️ CSS ✔️ Scss ✔️ Gulp ✔️ AWS ✔ RestAPI development ✔ Database administration ✔ Server configuration Having 6+ years of experience, I have developed a wide range of websites using PHP, Javascript, Laravel, SQL, HTML, CSS including development of reporting systems, data analysis platforms, and wide range of websites built from scratch for big companies all over the world. I am always doing my best to combine the clients' ideas and my proficiency to build reliable and user-friendly systems for their businesses.
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    Elasticsearch
    API Development
    JavaScript
    Laravel
    PHP
    Website Development
  • $15 hourly
    Full stack developer C# ASP.Net Desktop Application developer VB.Net/ C# MS SQL Database administrator
    vsuc_fltilesrefresh_TrophyIcon Web Services
    Windows App Development
    API Integration
    Web Development
    Web Application
    English
    Microsoft Office
    DevExpress
    Desktop Application
    Windows Forms
    API
    ASP.NET
    Visual Basic
    C#
    ASP.NET MVC
    Web Service
  • $65 hourly
    I am TOP RATED, a strong, full-stack developer from the United States. In the past, I worked for the biggest companies such as Oracle, Accenture, First Data, Barclays Bank, GMAC, ING Direct. I have 20+ years of experience in web development and I highly specialize in - Java (J2EE, Spring, SpringBoot, JMS, Java Struts, Java Servlets, JSP, Hibernate, MyBatis, REST). - PHP (Laravel) - Javascript (React, Angular, JQuery, Vue.js) - HTML, CSS, Bootstrap - MySQL, Postgress, Oracle - AWS, Apache Tomcat I have built more than 200 systems and I am comfortable working with both existing and new projects. I helped hundreds of clients in their business and I am here to help you as well! 100% satisfaction guaranteed or your money back.
    vsuc_fltilesrefresh_TrophyIcon Web Services
    Jakarta Messaging
    Web Service
    J2EE
    AngularJS
    HTML
    React
    Laravel
    PHP
    SQL
    Microservice
    Java Persistence API
    Spring MVC
    Spring Boot
    Spring Framework
    Java
  • $35 hourly
    I'm an experienced Webmaster and Web programmer with an excellent skills in PHP, CSS. JS & WordPress. I'm the founder of TigaMedia studio. I don't think outside the box, but prefer to think without the box. I have 10+ years experience as a web developer and webmaster. I did a lot of work related to site maintenance, development and optimization.
    vsuc_fltilesrefresh_TrophyIcon Web Services
    Page Speed Optimization
    Notion
    No-Code Website
    No-Code Landing Page
    No-Code Development
    WordPress e-Commerce
    Website Maintenance
    Website Security
    Insightly
    Search Engine Optimization
    Zapier
    Shopify
    Genesis Framework
    PHP
    WordPress
  • $30 hourly
    I have an experience of 14 years specifically in Odoo and have worked with Odoo company itself and its partner companies from version 4.2 till 16 on both Community and Enterprise. I am Odoo 12, 13, 14, 15 and 16 Certified. Moreover I'm also Certified Scrum Master as well. I have implemented projects for many customers of different verticals across the globe be it Americas, Europe, Middle East, Africa, South East Asia and Australia. I have done more than 100+ implementaions for customers and have been involved in all the steps in end to end implementations be it Requirements Gathering, Business Analysis, Solution Designing, Customization / Development, Data Migration, Training and Go-Live and Support. I am also an Odoo Certified and have trained more than 1000+ people on Odoo on both Technical and Functional. I can provide following services with Odoo. - Odoo Customization / Development - Odoo Implementation (In house, Cloud, Odoo.sh) - Odoo Customization / Development - Odoo Technical Support - Odoo Functional Consultancy - Odoo Requirements Gathering and GAP Analysis - Odoo Solution Design - Odoo Performance Improvement. - Odoo Migration - Odoo Training - Post Implementation Support
    vsuc_fltilesrefresh_TrophyIcon Web Services
    Project Management
    MongoDB
    Odoo Development
    Odoo
    Web Development
    Python
    Enterprise Resource Planning
    JavaScript
    HTML
    PostgreSQL
    Django
    CSS
    Payment Gateway Integration
    jQuery UI
    MySQL
  • $33 hourly
    I am a PHP / JavaScript developer with +7 years of experience. I have extensive experience supporting and developing applications from scratch on the Laravel framework for existing businesses and start-ups. Expert in: ✅ Back-end: PHP, Laravel, Nova, Vapor, PHPUnit, MySQL, PostgreSQL, Redis, Shopify API ✅ Front-end: JavaScript, Alpine.js, Vue.js, Tailwind, Inertia, jQuery, Sass, Vuetify, Bootstrap ✅ DevOps: Linux, Git, Docker, Nginx, AWS, Azure, Kubernetes
    vsuc_fltilesrefresh_TrophyIcon Web Services
    JavaScript
    Vue.js
    Bootstrap
    PHPUnit
    Linux System Administration
    Web Application
    Sass
    Tailwind CSS
    Git
    SQL
    Laravel
    Web Service
    RESTful API
    PHP
    API
    Docker
    MySQL
  • $15 hourly
    I am offering an exceptional web design and development services that will trigger a call to action among your clients. Whether it is your Branding, Personal, Company or Ecommerce Website, I guarantee that your business will give you an edge over the market. Skills: Core PHP, WordPress, woo commerce, Wix api integration, wix corvid/velo custom code, Laravel, API development and Integration, React js
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    React Native
    API Integration
    Laravel
    Mobile App Development
    Page Speed Optimization
    Web Service
    React
    API Development
    Web Design
    WooCommerce
    PHP
    Responsive Design
    Wix
    WordPress
    JavaScript
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