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  • $60 hourly
    • 5.0/5
    • (121 jobs)
    🚀 Welcome to my UPwork Profile! 🚀 Are you in need of an experienced database expert to tackle the complexities of managing and optimizing your databases? With over 12 years of experiment across multiple database systems, I'm here to deliver top-notch solutions tailored to your needs, including database installation, backup and recovery, high availability, disaster recovery, performance optimization, data rescue and so on. 🔍 Database Expertise: With over 12 years as a senior expert in MySQL/MariaDB/Percona/PostgreSQL/MongoDB/Oracle/DuckDB, I’ve managed over 5000 databases and 300 TB+ of data. My experience covers database architecture, performance optimization, backup and recovery, High availability, disaster recovery, and much more. I ensure every database solution I deliver is robust, scalable, high performance, and perfectly aligned with your business needs. 🛠️ Technology Stack: MySQL/MariaDB/Percona (Versions 5-9): Installation、High Availability, Replication, and Scalability Solutions、InnoDB Cluster、Group Replication、Workbench/Shell/Router、Backup & Restore、Galera Cluster、Percona XtraDB Cluster、XtraBackup、Toolkit、InnoDB/MyISAM/Binlog. PostgreSQL (Versions 9-17): Installation、High Availability, Replication, and Scalability Solutions、SQL Tuning、pgpool-II、PostGIS、Patroni、Citus、pgvector、Security. MongoDB (Versions 4-8): Installation、MongoDB Shell (mongosh)、Aggregation、Indexes、Atlas、Time Series、Change Streams、Replication、Sharding、Storage、Administration、Security. Other Database : Oracle、DB2、Redis、DuckDB Cloud service providers: AWS RDS、AWS Aurora、Amazon DocumentDB、GCP、Azure、N8N creator. Certifications: I hold certifications from Cisco, Oracle, MySQL, AWS, ITIL, PMP, and TOGAF, ensuring I bring industry-recognized expertise to every project. 📈 Why Choose Me? Proven Experience: Worked for leading ICT and IoT solution providers, supporting major operators, banking, and financial enterprises. End-to-End Solutions: From designing high availability architectures to delivering query optimizations and backup solutions, I offer complete database management expertise. Training & Support: I also provide course training for companies looking to empower their teams with database-related skills. 🤝 Let’s Collaborate: If you’re looking for a seasoned database professional to tackle challenges in MySQL, PostgreSQL, MongoDB, Oracle, or other database technologies, let’s discuss how I can help streamline your operations and enhance performance. 📩 Contact Me: I’m ready to dive into your project. Reach out, and let’s unlock the full potential of your data infrastructure together!
    Featured Skill MySQL Administration
    MongoDB
    PostgreSQL Programming
    Amazon RDS
    Database Maintenance
    Query Tuning
    MariaDB
    Database Design
    Database Administration
    MySQL Programming
    Database Optimization
    PostgreSQL
    MySQL
    Backup & Migration
    SQL
    Oracle
  • $35 hourly
    • 5.0/5
    • (7 jobs)
    Hi. there👏. I have 9+ years of experience in Web and Backend development ( React, Vue, Next, Nuxt, Node, React Native, Plasmo). My Objective is to create excellent web apps. With the latest technologies I will implement your idea into the ready to market product. I take care of requirement gathering, development, client communication, managing deliveries etc My Skill-set includes: - Expertise in Web development using MERN (MongoDB, Express, React, and Node.js ) - Expertise in Web development using MEVN (MongoDB, Express, Vue, and Node.js ) - Expertise in Web designing in using HTML, CSS - Backend for Web application/web services development using Node.js/MySQL/MongoDB - Expertise in Chrome Extension development using Plasmo or Javascript - Expertise in App development using React Native - Expertise in testing using Vitest and Jest Normally use SVN, Git, Bitbucket, and Github for version control
    Featured Skill MySQL Administration
    Koa
    Next.js
    NestJS
    TypeScript
    MongoDB
    Nuxt.js
    CSS 3
    jQuery
    HTML5
    React
    MySQL
    JavaScript
    Vue.js
    Node.js
    webpack
  • $35 hourly
    • 5.0/5
    • (102 jobs)
    🚀 Welcome to my Upwork Profile! 🚀 Are you looking for a proficient scraping expert and data engineer to extract valuable insights from the vast ocean of data on the web? Look no further! With a proven track record of delivering high-quality data engineering solutions and scraping services, I'm here to help you turn raw data into actionable intelligence. 🔍 **Scraping Expertise:** I specialize in web scraping, utilizing cutting-edge techniques and tools to efficiently gather structured data from various online sources. Whether it's e-commerce product data, social media posts, or financial information, I have the skills and expertise to scrape it all while ensuring data accuracy and reliability. 💻 **Data Engineering Solutions:** As a seasoned data engineer, I thrive on building robust data pipelines and scalable infrastructure to handle large volumes of data. From data collection and storage to processing and analysis, I design and implement end-to-end solutions tailored to your specific needs. My goal is to empower businesses with actionable insights that drive informed decision-making. 🛠️ **Technology Stack:** I'm proficient in a wide range of tools and technologies including, but not limited to: - Web scraping frameworks like Scrapy, BeautifulSoup, and Selenium - Database management systems such as MySQL, PostgreSQL, and MongoDB - Data processing libraries like Pandas, NumPy, and Spark - Cloud platforms like AWS, Google Cloud, and Azure 📈 **Why Choose Me?** - **Reliability:** I prioritize timely delivery and maintain open communication throughout the project lifecycle. - **Quality Assurance:** Rigorous testing and validation processes ensure that the data delivered is accurate and reliable. - **Scalability:** My solutions are designed to scale effortlessly, accommodating your growing data needs without compromising performance. 🤝 **Let's Collaborate:** Whether you need a one-time scraping task or a long-term data engineering partner, I'm here to help. Let's discuss your project requirements and explore how we can work together to unlock the full potential of your data assets. 📩 **Contact Me:** Don't hesitate to reach out if you have any questions or would like to discuss your project in detail. I'm looking forward to hearing from you!
    Featured Skill MySQL Administration
    Microsoft Excel
    Mandarin Dialect
    Translation
    MySQL
    RabbitMQ
    SQL Programming
    Redis
    Java
    Data Extraction
    API Integration
    Python
  • $15 hourly
    • 5.0/5
    • (4 jobs)
    👨‍💻 I'm Jian Su, a freelance Golang expert and Back-End developer, solving interesting program problems. I can also handle simple Front-End tasks if clients needed. My strong computer science background mean I'm a quick learner. I believe transparent communication is key to managing software complexity and achieving project success. 🥇SKILLS🥇 ✅ Golang | Gin | GORM | sqlc | gRPC | RESTful API | Microservices ✅ FoundationDB | PostgreSQL | MySQL | Redis | Docker | Docker Compose | k8s | Kafka | Apollo.io | Elasticsearch ✅ HTML | JavaScript | React | Astro ✅ Other more specialized skills to learn... I'm confident in my problem-solving ability, and even if I can't fully solve your issue, I can offer valuable advice. Feel free to drop me a message! ❤️
    Featured Skill MySQL Administration
    React
    JavaScript
    Front-End Development
    NGINX
    Redis
    MySQL
    PostgreSQL
    SQL
    FoundationDB
    Docker
    API
    Microservice
    Software Architecture & Design
    Back-End Development
    Golang
  • $30 hourly
    • 5.0/5
    • (24 jobs)
    I'm a .NET/C# fullstack software engineer with 10+ years of experience in building desktop applications and websites in the field of MIS and E-Commerce. I'm familiar with .NET Framwork, .NET Core and .NET 5+ and have developed several projects based on MVC, WebApi, Razor, EF, SqlSugar, Npoco, DI, IoC and so on. I also have some frontend experience with HTML, CSS, Javascript, jQuery and AngularJS.
    Featured Skill MySQL Administration
    PHP
    Web API
    Application Installer
    Windows App Development
    Razor Template Engine
    .NET Core
    MySQL
    .NET Framework
    Entity Framework
    Microsoft SQL Server
    ASP.NET MVC
    Desktop Application
    SQLite
    C#
    Redis
  • $20 hourly
    • 4.5/5
    • (16 jobs)
    I'm a skilled Java developer with 7+ years of experience and a Bachelor's degree in Computer Science., specializing in Java, Python, and JavaScript.I have been tech leader in the last two companies. My expertise is in Backend/Frontend development, Restful API, Web Scraping & Crawling, Devops. ➢ Strong Programming skills, in designing and implementing scalable applications using Spring Boot, Spring MVC, Java-J2EE, Nodejs, Express, Struts, Spring Data JPA, JPA, Hibernate, Spring Securit, Rabbitmq, etc. ➢ Database: MySQL, PostgreSQL, Redis, MongoDB, ClickHouse. ➢ Familiar with SQL, can do performance tuning and riched experience in database design. ➢ CI/CD: Jenkins/Gitlab CI/CD/ Github Action. ➢ DevOps: Linux, Ansible, Docker, Kubernetes. ➢ Extensive experience in working with JavaScript/TypeScript languages, frameworks, libraries, and technologies such as Vue.js/ React, NextJS, Tailwind, ShadCN. ➢ Familiar with Web Scraping and automation using Python or JS. My clients' happiness is always my top concern. I'll be looking for a communication from you.:)
    Featured Skill MySQL Administration
    DevOps
    Web Scraping
    Node.js
    React
    PostgreSQL
    MySQL
    Docker
    Spring Boot
    Python
    Java
  • $20 hourly
    • 5.0/5
    • (8 jobs)
    Hello, I am Yixu Chen, a software developer since 2015. My major in university was Mechanics Engineering, however, I found myself interested in programming when I started the C++ Course in my first year at Xian Jiaotong University, so I became a software developer when I graduated. I worked at different industries during my career so far. I developed E-Medical systems for hospitals, Future Trading Systems for exchanges, Consultation Bots for Tax Bureaus, Internal OA systems for groups as well as an Investing App for Fidelity Canada, which has made me a veteran out of a private. Currently, I have gained the following skills: Frontend: 👍 HTML & CSS 👍 Tailwind CSS 👍 Javascript / Typescript 👍 React 👍 NextJS 👍 Redux 👍 Material-UI 👍 Styled Components 👍 Internationalization Backend: 👍 Nginx 👍 Java 👍 Go 👍 Python 👍 Spring / SpringBoot / SpringAOP 👍 MySQL 👍 PostgreSQL 👍 Redis 👍 ElasticSearch 👍 AWS / Terraform 👍 Github 👍 Bitbucket 👍 Camunda 👍 Postman 👍 Unit Test DevOps: 👍 Jenkins 👍 Docker 👍 Kubernetes 👍 Linux Shell I am a proactive developer and detail-sensitive, I can design the whole system from the top and pay attention to the details at the bottom, I can also forecast the potential changes of the requirements in the future. Looking forward to our collaboration, and your trust in me will be repaid with a perfect project of high availability, flexibility and scalability.
    Featured Skill MySQL Administration
    MERN Stack
    Three.js
    Next.js
    MySQL
    Tailwind CSS
    Redux
    Spring Boot
    Flask
    Django
    Python
    React
    Golang
    Vue.js
    Java
  • $20 hourly
    • 5.0/5
    • (46 jobs)
    I am a Linux administrator. I have almost 8 years of experience in Linux system administration and problem-solving, especially about Centos and Ubuntu. I can do trouble-shooting of all kinds of linux issues, centos migration, centos/ubuntu crash rescue, investigate server performance issue and Wordpress website administration. Here are services i can provide: 🏅Linux Adminstration, configuration, problem-solving. 🏅Fix linux system crash, file system corruption. 🏅Trouble-shooting Linux performance issue and fix. 🏅Wordpress administration include installation, migration, and problem-solving.
    Featured Skill MySQL Administration
    Let's Encrypt
    MariaDB
    Linux System Administration
    PrestaShop
    OpenVPN
    Website Migration
    Web Hosting
    MySQL
    Docker
    Debian
    NGINX
    Apache HTTP Server
    WordPress
    Ubuntu
    CentOS
  • $20 hourly
    • 5.0/5
    • (4 jobs)
    Any outstanding idea, you can come to me and I will give you excellent completion you can access my website to know me more (shuangxi.pro) backend:java,springMvc,mybatis,hibernate,jpa,traditional servlet,springboot,junit4 and more frontend:javascript,css,html,react,angular,vue and more database:oracle,postgresql,mysql,mongodb and more
    Featured Skill MySQL Administration
    Oracle
    MySQL
    MongoDB
    Angular
    jQuery
    Spring Security
    Spring Boot
    Java
    React
    JavaScript
    Python
    Prototype JavaScript Framework
    Vue.js
    Java Servlet API
    Spring Framework
  • $50 hourly
    • 5.0/5
    • (2 jobs)
    I'm a skilled Java developer with 10+ years of experience and a Bachelor's degree in Computer Science. I've worked on a variety of projects, including a Shopping Assistant, Game play and earn platform, Video play and earn app, Bike sharing operation tool, assets management platform, and a game guild app. My expertise in Java allows me to develop scalable solutions with attention to detail and strong problem-solving skills. My skills include, but are not limited to the following: -Java/Python/Node/PHP -MySQL/Redis/MongoDB -Maven/Gradle -RabbitMQ/ActiveMQ/Kafka -Lucene/ElasticSearch/Solr -HTML/CSS/JavaScript -Git/SVN -Jenkins -Docker
    Featured Skill MySQL Administration
    Linux
    Jakarta EE
    Apache Kafka
    RabbitMQ
    Elasticsearch
    Back-End Development
    Jenkins
    Gradle
    Git
    Docker
    NGINX
    Python
    Java
    Redis
    MySQL
  • $55 hourly
    • 5.0/5
    • (8 jobs)
    Over 28 years of programming experience with 21 years of business development. The 64-bit era: iOS / Objective-C & Swift & C++ / Xcode(Cocoa & CocoaTouch framework) Linux(CentOS & Ubuntu) + Apache + MySQL + PHP full-stack design/development. Major iOS app(with server) design/development. The 32-bit era: MacOS 9 & MacOS X / C++ / CodeWarrior(Carbon framework) & Xcode(Carbon framework) Red Hat & Ubuntu / C++ / vim & gcc & gdb Windows XP & Windows 7 / C++ / C++ Builder 6.0(VLC framework) & Visual C++ 6.0(MFC framework) Major Cross-Platform framework/SDK, MacOS X app design/development. The 16-bit era: MS DOS/Turbo C 2.0
    Featured Skill MySQL Administration
    C++
    Apple Xcode
    Network Security
    iOS Development
    MySQL
    Objective-C
    Swift
    System Administration
  • $40 hourly
    • 4.8/5
    • (24 jobs)
    10+ years of development experience, full stack engineer, proficient in: Nodejs, Chrome extension, php, vuejs, nw.js, electronjs, Puppeteer, mysql and other technologies; Developed many different types of apps (ios/Android), web apps and desktop software. Used various frameworks or projects: php: Yii2, thinkPHP, etc. JavaScript: Vuejs, ionic, reactjs, quasar, etc. Nodejs: express, directus, etc. Previous jobs: programmer, project manager, product designer, product manager, product director, development manager, He also started a business in Shanghai, China. The entrepreneurial project received Series B financing (Internet project). He served as the co-founder of the entrepreneurial project and was in charge of Internet product planning and R&D related technology lines. Because the new entrepreneurial project launched at the end of 2018 failed due to the new crown epidemic, currently working full-time as a freelancer.
    Featured Skill MySQL Administration
    HTML5
    TypeScript
    Ionic Framework
    PHP
    Browser Extension
    MySQL
    Electron
    Vue.js
    NodeJS Framework
    Quasar Framework
    Web Application
    Google Chrome Extension
    WeChat
    Vuetify
    Alibaba Cloud
  • $100 hourly
    • 5.0/5
    • (16 jobs)
    I am a blockchain developer with ten years of work experience. I'm good at blockchain public chains develop and various smart contract develop. I'm good at C/C++, GO, Python, PHP, NodeJS, etc. I can be good at all blockchain projects. Sincerely look forward to cooperating with you
    Featured Skill MySQL Administration
    Solana
    Ethereum
    web3.js
    Smart Contract
    Blockchain
    Blockchain, NFT & Cryptocurrency
    NFT Marketplace
    NFT Minting
    Solidity
    Node.js
    Truffle
    Blockchain Development
    NFT Art
    MySQL
  • $45 hourly
    • 5.0/5
    • (2 jobs)
    This is Zeo, with a master degree of translating and interpreting, NAATI 3 accreditation and a certified ProZ PRO with over 10-year experience. Also work as a data analyst, specializing in data visualization and data extraction. Relentless, prompt, communicative in work and always ready to be at your service.
    Featured Skill MySQL Administration
    Adobe Photoshop
    Translation
    Adobe Premiere Pro
    Video Game Localization
    Web App Localization
    memoQ
    Chinese
    Adobe Illustrator
    MySQL
    SDL Trados
    Data Visualization
    Tableau
    Data Extraction
    Microsoft Excel
  • $50 hourly
    • 5.0/5
    • (77 jobs)
    I have 6 years of experience in front-end (vue, html, js, css), java (spring), etc. My previous team was less than 50 people, I would help some newbies point out problems or fix bugs in their code, and I had solved many difficult problems for my team. so My skill is not only in js or java: * reviewed code for Android and IOS in order to solve the webview problem. * built and deployed tools such as strongSwan in order to solve the problem of local machine and test environment access each other. * built and deployed applications such as ELK, jenkins, nexus, git, docker in order to devops. * learned to modify the relevant code of Golang and Java in ELK system, in order for it can show the calling relationship of Dubbo framework and store the k8s pods stdout log propperly. * used some tools in Linux in order to solve network or deployment problems. and so on... Finally, although I have been reading a lot of English materials for the past few years in order to solve those problems, my spoken English still lacks practice. I can improve it well in this platform if needed. I believe I can do it because so many difficult problems have been solved by me.
    Featured Skill MySQL Administration
    React Native
    Spring Cloud
    CSS
    Web Development
    MyBatis
    Spring MVC
    Spring Boot
    Vue.js
    HTML
    JavaScript
    MySQL
    Jenkins
  • $40 hourly
    • 5.0/5
    • (25 jobs)
    ✅ 10+ Years Experience ✅ Laravel expert ✅ React/Vue expert ✅ Smartwatch expert I'm a full stack developer with more than 10 years of experience. I have developed more than 20+ projects with mobile APP, website, smart hardware, etc. - Backend skills: Laravel (6+ yrs), MySQL/Postgresql, Go, Node.js, Python, etc. I have a lot of experience with high concurrency to service millions users. - Frontend skills: Vue.js (5+ yrs), React/ReactNative(< 1 yr), webpack, etc. - DevOps: I have a lot experience with CI/CD (Drone, Jenkins, Github Actions), Linux, Docker, k8s, etc. - Other: Unite test, MQ, Queue, Search Engine, Recommendation, etc.
    Featured Skill MySQL Administration
    Smartphone
    Full-Stack Development
    Web Application
    Laravel
    Kubernetes
    PostgreSQL
    Docker
    MongoDB
    MySQL
    Vue.js
    Golang
    TypeScript
    PHP
    Web Development
    React
  • $50 hourly
    • 5.0/5
    • (5 jobs)
    Hello there! 👋 I'm a seasoned senior backend developer with over 5+ years of expertise in crafting sophisticated business systems. In my capacity as a Senior Backend Development Engineer at ByteDance Inc., the powerhouse behind TikTok, I've harnessed the power of Golang, Java, Python, and C++ to engineer recommendation systems tailored to elevate the TikTok short video experience. What I bring to the table for you: 🚀 Free consultation: Delighted to provide insights based on hands-on experience with your project. 🛠 Project development: Proficient in Golang, Python, and Java, well-versed in their ecosystems and renowned frameworks. Services include API development, code refactoring, system design... 🔧 DevOps engineering: Well-acquainted with Kubernetes and Docker, with hands-on experience in open-source projects utilizing these for seamless deployments. 🤖 OpenAI Integration: I have experience utilizing LangChain to build tools and projects, empowering me to assist you in creating outstanding projects with OpenAI. Eager to collaborate and create brilliance together! 💻🌟
    Featured Skill MySQL Administration
    LangChain
    DevOps Engineering
    GPT-4
    ChatGPT
    Azure OpenAI Service
    Architecture
    Elasticsearch
    Kubernetes
    MySQL
    Python
    Golang
    Database
    API
    Java
    Docker
  • $35 hourly
    • 5.0/5
    • (2 jobs)
    More then 6 years of experience as software engineer. Used to work at Hulu(a part of Disney) and ByteDance(famous for Tiktok). - 3 years of experience of developing web service at ByteDance. I'm familiar with Golang, Python and widely used technologies such as MySQL, Redis and Docker, etc. - 2 years of experience of big data processing using Flink and Spark, familiar with Java, Scala and other related technologies like Kafka, Hive and AWS, etc. - 1 year of developing recommendation system
    Featured Skill MySQL Administration
    Docker Compose
    Linux
    Apache Flink
    Apache Kafka
    Elasticsearch
    Docker
    Amazon Web Services
    Apache Spark
    MySQL
    Redis
    Golang
    Scala
    Python
    Java
  • $45 hourly
    • 5.0/5
    • (3 jobs)
    Hi, I am a seasoned software engineer with over 15 years of experience in developing mobile apps and websites and web applications using Python, Django, Flask, Node.js, Express.js, GraphQL, Javascript, React, MongoDB, PostgreSQL, HTML and CSS. My client-centric approach, top-notch code quality, and business acumen yield exceptional results. I write high quality code and understand client's needs from a business perspective. With strong research skills, I tackle complex challenges and deliver exceptional work efficiently. As a result my expertise brings cost-effective solutions. Let's collaborate for a win-win experience. Reach out and savor the delicious taste of my service!
    Featured Skill MySQL Administration
    Node.js
    Next.js
    GraphQL
    MySQL
    TypeScript
    MongoDB
    Amazon Web Services
    Web Development
    React
    HTML
    Flask
    PostgreSQL
    JavaScript
    Django
    Python
  • $40 hourly
    • 5.0/5
    • (2 jobs)
    I am a software senior engineer with more than 20 years of experience as a professional developer. I have acquired various skills, including C, C#, web programming (PHP and JavaScript), and systems management. Of these skills, I specializes in system programming, including multi-process, multi-threading, network communication, database development, etc.
    Featured Skill MySQL Administration
    Linux
    Database Development
    Web Development
    Socket Programming
    C
    MySQL
    PHP
    C#
  • $60 hourly
    • 5.0/5
    • (2 jobs)
    Hello, I am a professional product architect and builder, specializing in creating innovative and practical product designs. My work experience spans multiple industries, and I possess extensive knowledge in both design and technology. Throughout my career, I have consistently focused on transforming complex concepts into products that are easy to understand and use. Here are some highlights of my expertise: Product Design: I excel in designing simple and intuitive user interfaces and user workflows, always from the perspective of the user. Technical Proficiency: Skilled in both front-end and back-end programming, I effectively combine various technologies to develop outstanding products. Cross-platform Development: I have experience developing with Linux and am also familiar with the Windows environment, especially in developing platform products. Language Skills: Fluent in both Chinese and English, enabling me to communicate effectively in a multicultural environment. I am passionate about continually learning new skills and am open to embracing new challenges. My goal is to create products that not only meet market demands but also enhance the quality of life for users.
    Featured Skill MySQL Administration
    Figma
    CSS
    HTML
    MySQL
    SQLite
    Git
    WordPress Plugin
    WordPress
    JavaScript
    PHP
    Vue.js
    Node.js
    Python-Requests
    Python Scikit-Learn
    Python
  • $50 hourly
    • 5.0/5
    • (48 jobs)
    - 🛠️ macOS/iOS Development: 10+ apps shipped using Swift/Swift UI/Objective-C - 🤖 VBA Automation: Delivered various macros/automation for clients. - 🚀 Full-Stack Capability: Type Script & Python (Flask/Django) & C++ backend integration Technical Arsenal: 🖥️ macOS/iOS Development - Swift/Swift UI: 10+ years, 10+ apps shipped - Objective-C: Legacy system migration expertise - Core Frameworks: AppKit, Core Data, Combine 🤖 Automation Engineering - VBA: 10+ years, enterprise-grade solutions - AppleScript: Seamless macOS integration - Python Automation: Selenium, Pandas integration ⚙️ Backend & Integration - Python: Flask/Django REST APIs - C++: High-performance computing modules - Cloud Integration: AWS S3, iCloud Sync My Commitment to Clients: I don't just write code - I deliver solutions that drive real business results. Whether it's automating tedious workflows or building mission-critical macOS/iOS applications. Let's build something extraordinary together.
    Featured Skill MySQL Administration
    MySQL
    iOS
    Perl
    C++
    Machine Learning
    NLP Tokenization
    Django
    SwiftUI
    Swift
    Python
    Software
  • $50 hourly
    • 5.0/5
    • (9 jobs)
    With 10 years of experience in software development, I am highly proficient in multiple areas. I am proficient in using Java development frameworks such as Spring, Spring Boot, Spring Cloud, Spring MVC, and Spring AOP, and understand their underlying principles. Additionally, I am skilled in using ORM frameworks like JPA, MyBatis, and iBatis. I am also adept at using databases including MySQL and Redis and am familiar with their underlying principles. Moreover, I am well-versed in various middleware like Redis and Kafka. I am proficient in Java's high concurrency, high performance, and multi-threaded programming and have developed related projects. I am familiar with the underlying principles of the JVM. I have participated in system architecture design and optimization. Furthermore, I am proficient in front-end development frameworks like React and Angular.js. However, my expertise doesn't stop there. I am also an extremely professional when it comes to Excel and VBA. I have extensive experience in developing robust Excel and Access programs using VBA. I can create sophisticated, user-friendly, and intuitive Excel and Access programs that automate tedious and complex processes, enhancing productivity for businesses and individuals. Whether it's building programs from scratch or expanding on existing ones, I am passionate about leveraging VBA to streamline Excel and Access workflows. I am currently looking for part-time opportunities related to Excel and VBA. If you need a professional who can transform your Excel and Access processes into powerful and user-friendly automated systems, look no further. Let's collaborate and achieve higher levels of productivity for you and your business.
    Featured Skill MySQL Administration
    Google Spreadsheets API
    Redis
    Apache Kafka
    Visual Basic for Applications
    MySQL
    MyBatis
    Spring Boot
    Spring Cloud
    Java
    Excel Macros
    DevOps
  • $31 hourly
    • 5.0/5
    • (28 jobs)
    I am a native-English-speaking Canadian living in China, with a deep understanding of the Linux/LAMP ecosystem, and dedicated to getting the job done. Particularly strong with Amazon AWS, Django / Mezzanine, Apache/MySQL, network API communications, and back-end web application development. I usually have time to add small new projects, and software development projects. Ask me about big projects, my workload varies! http://expat-it.net/ http://blog.expat-it.net/ I also offer a discount of $1 off my hourly rate for any client who commits to using PGP-encryption for all e-mail communications.
    Featured Skill MySQL Administration
    Django
    jQuery
    Amazon EC2
    Postfix SMTP Server
    Mercurial
    PHP
    Version Control
    Apache Administration
    Git
    Linux System Administration
    MySQL
    Bash
    Python
    Ubuntu
    CentOS
  • $39 hourly
    • 5.0/5
    • (1 job)
    ::: Self Introduction ::: Highly motivated and enthusiastic System Architecture & Full Stack developer focus on software development with more than 15 years. I am proficient in requirement analysis, System design, Software development, Continous integration and Task management. ::: Programming experiences ::: 🛢️ BACKEND DEVELOPMENT: Java, Spring, Spring Boot, MyBatis, MySQL, RabbitMQ, Golang, Gin. 🖥️ FRONTEND DEVELOPMENT: React, HTML5, CSS, Tailwindcss, Next.js, WebAssembly 📱 MOBILE DEVELOPMENT: Flutter, React Native, Google & iOS app deployment workflow and policy. ⚒️ DEVOPS: Jenkins, Git, Shell, Python, Kubernetes, Ansible. 🧑‍💻 SOFT SKILL: Requirement analysis, System design, Complicated problem breakdown, Task management. ::: Achievements ::: 🏆 Successfully deployed 5 apps to Google Play Store, and 15 apps to apple store. 🏆 Successfully Design, Develop and Deployed an IoT Based popcorn auto seller machine management platform to our customer, which has been get more than 70000 clients. The system is build with Golang + Gin + Gorm + Postgresql. 🏆 Successfully Design, Develop and Deployed an IoT based boiler management system to 3 customers, and manage more than 50000 boilers and get more than 20GB history data in Time series database for futther data analysis. The system is build with Spring Cloud and micro-service pattern. 🏆 Build up Company IT development workflow and Devops infrastuture from 0 to hero. Build a whole process for system deploy automation with Gitlab, Jenkins, Harbor, Kubernetes, Aliyun. Hope to have the opportunity to work together to create a better future. Cheers.
    Featured Skill MySQL Administration
    Django
    Spring Cloud
    Golang
    Vue.js
    HTML
    Java
    iOS Development
    TypeScript
    React
    Android
    React Native
    JavaScript
    MySQL
    Python
  • $35 hourly
    • 5.0/5
    • (5 jobs)
    Proficient in Web, App, Nodejs and Python development. Can work independently on large web applications and mobile apps. 5+ years of experience as a senior developer. Available for Short-term/long-term contract work or part-time.
    Featured Skill MySQL Administration
    Firebase
    Koa
    English
    Flutter
    React Native
    AWS Application
    MySQL
    Vue.js
    Node.js
    MongoDB
    Next.js
    Python
    CSS
    HTML5
    React
    TypeScript
    JavaScript
  • $200 hourly
    • 0.0/5
    • (0 jobs)
    Rakuten frontend architect. Top Skills are shown as follow. HTML5 1. Popular front-end framework like React, VUE. 2. Workflow utilities(gulp, webpack etc.) 3. CSS Pre-processors(SASS, LESS etc.) 4. Design Pattern(Singleton, Observer etc.) 5. Technical about architecture (State Machine, Message Queue, Key/Event router etc.) 6. JavaScript Library (jQuery, Backbone, underscore). 7. knowledge in ES6. 8. knowledge in Ajax, and consuming RESTful web services. 9. cross-origin knowledge (jsonp, cors, reverse proxy). Python 1. Python basic usage. 2. Python multiple thread, Coroutines. 3. Web Spider with native python or spider framework.
    Featured Skill MySQL Administration
    Redux
    webpack
    Vue.js
    React
    HTML5
    JavaScript
    MySQL
    MongoDB
    CSS 3
    Python
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