Hire the best MySQL Developers in Poland

Name: MySQL developers
Brand: Upwork
Rating: 4.9 (121 reviews)

Check out MySQL Developers in Poland with the skills you need for your next job.

Get started

Clients rate MySQL developers

4.9/5

based on 121 client reviews

$125 hourly
Shiv K.
- 5.0/5
- (53 jobs)
I made the software at NASA 🚀 faster - your project doesn't stand a chance at staying slow in my hands! ( github.com/nasa/ncompare/pull/264 ) I am an expert Back-end Developer specializing in FastAPI and Hasura, along with PostgreSQL, MySQL, and MongoDB. My contributions to open-source code include NASA software, Tensorflow, Meshtastic, and Python. My job is to turn your awesome ideas into reality as quickly as possible while keeping the backend perfect and the end product stable. I help people build their dream services and solve the problems they encounter with state-of-the-art solutions. Over the last 12 years, I have acquired extensive experience using a variety of languages to craft beautiful back-end systems, along with providing novel solutions, speed optimization, and cloud architecture, ensuring that it can scale globally. I have led the back-end development of ReskyuMe, PaGaLGuY, Easio, and Airbnb amongst many others. An extremely high level of reliability and responsibility is my guarantee, which is evident from all of my reviews being rated 5 stars! I have a deep knowledge of different architectures like x86 and ARM, which allows me to fully understand how different CPUs work, how memory is accessed, and how SIMD/vectorization can be exploited to speed up services. Technologies I use: ✅Languages: C, C++, Python, HTML, CSS, JavaScript ✅Frameworks: FastAPI, Hasura ✅Server Interfaces: REST, GraphQL, Websockets ✅DB Interfaces: SQLAlchemy, SQLModel, PyMongo ✅SQL DBs: PostgreSQL, MySQL, and other SQL-based DBs ✅NoSQL DBs: MongoDB, Cassandra, ScyllaDB ✅Version Control: Git & Mercurial ✅DevOps: Traefik, Nginx, Docker, Kubernetes, Apache, AWS, Google Cloud Platform, Microsoft Azure, Digital Ocean, GitHub Actions ✅Project Management: ClickUp, Trello, Github ✅Operating Sytems: Windows, Linux (Ubuntu, Debian, CentOS, etc.), macOS ✅Cloud Platforms: Amazon Web Services, Google Cloud Platform, Microsoft Azure, DigitalOcean, Linode, Hostinger, et al ✅Cloud Services: Cloudflare ✅LLMs: ChatGPT and self-hosted ones Vast knowledge of: ✅Software design and development ✅Different hardware platforms: x86 and ARM ✅Parallel processing: SIMD and Vectorization ✅Cloud Architecture, CI/CD ✅SQL query construction ✅NoSQL query construction ✅Object-Oriented Programming ✅Speed optimization ✅Usability ✅Security

MySQL Administration
Cloud Engineering
Cloud Architecture
Cloudflare
SQLAlchemy
Object-Oriented Programming
Database Optimization
Performance Optimization
Multithreaded, Parallel, & Distributed Programming Language
Azure DevOps
Docker
RESTful API
MySQL
GraphQL
PostgreSQL
Python
$35 hourly
Edgar Y.
- 4.6/5
- (10 jobs)
Hello! I am an Expert Web Developer. Over the past 7+ years I build websites of different complexity end-to-end using WordPress, WooCommerce, JavaScript, PHP, Advanced Custom Fields (ACF), Elementor, Divi, Beaver Builder, WPBakery Page Builder, Gravity Forms, Contact Form 7, Yoast SEO, and WPML. With a proven track record of delivering 30+ successful projects, I can efficiently help you with: • Custom WordPress theme, plugin development; • Figma to WordPress conversion; • Cusomization of Wordpress with JavaScript and PHP coding; • eCommerce website development using Woocommerce; • Website maintenance, update, support, etc; • Direct communication and team collaboration; • Pixel-perfect UI-componented design layouts; • Hand-coded W3C valid and well-organized/commented code; • Troubleshooting unit testing and documentation; • Workshops for clients to be able to manage and maintain their website on their own. I have extensive experience creating custom web portals, Progressive apps, SaaS, and more. For example, I’ve developed billing software, inventory software, learning management systems, and school management systems. I’m capable of working on projects both as an individual and as a part of a team. I’m also skilled in integrating APIs, payment gateways, and mailing services into projects. As a developer and designer, I ensure that the front-end UI is visually appealing and interactive for both users and administrators. I always code projects with scalability in mind so that they can be easily expanded in the future. I take projects seriously and strive to create an efficient collaboration with clients like yourself. My portfolio and client testimonials back up my claims. If you’re looking for someone who can create your project within coding guidelines while keeping it neat and clean, reduce the amount of time you need to spend checking work and requesting revisions, pay attention to project details and business goals, develop your project for long-term sustainability with clean code, and stay honest about requirements, costs, and time management - then look no further! I have what it takes to deliver the results you desire.

MySQL Administration
React
Laravel
Search Engine Optimization
Web Development
MySQL
JavaScript
WooCommerce
WordPress Plugin
PHP
CSS
Kajabi
Wix
WordPress
Squarespace
HTML
$35 hourly
Bahdan H.
- 5.0/5
- (25 jobs)
Fortunate web developer and troubleshooter with wide experience of working in completely different environments, teams and situations. Providing effective image processing through Gemini.

MySQL Administration
Chatbot
ChatGPT
AI App Development
Linux
Angular
Image Processing
MongoDB
Laravel
Symfony
Docker
MySQL
CSS
JavaScript
HTML
PHP
$50 hourly
Maciej J.
- 5.0/5
- (4 jobs)
I help companies ship AI features that actually work - without the typical startup chaos. With 8 years building production systems at scale + 2 years specializing in AI/LLM integration, I bridge the gap between AI potential and business reality. What Sets Me Apart: - Enterprise experience building for millions of users - Deep understanding of both backend architecture AND modern AI - Fast implementation without sacrificing code quality - Plain English communication - no tech BS My Sweet Spot: ✓ Building production RAG systems that handle real loads ✓ AI agent architectures that actually complete tasks ✓ Cost-optimized LLM implementations (I've cut API costs by 70%+) ✓ Integrating AI into existing systems without breaking everything Recent Impact: - Reduced LLM response time from 8s to 1.2s for legal tech platform - Built RAG system processing 100k+ documents with 95% accuracy - Implemented AI automation saving 20+ hours weekly for SaaS startup - Trained engineering team on AI-assisted development (2x productivity) Tech I Use Daily: Backend: Python, Django, FastAPI AI/LLM: LangChain, OpenAI, Anthropic, Local Models Infrastructure: AWS, Docker, PostgreSQL, Vector DBs Who I Work Best With: Companies that need an experienced engineer who happens to be great at AI - not an AI enthusiast who's learning to code. If you need someone who can deliver working AI features on realistic timelines and budgets, let's talk. Available for: Full-time contracts or ongoing part-time engagements

MySQL Administration
OpenAI API
Svelte
MySQL
HTML
pytest
Docker
REST API
Web Scraping
Tailwind CSS
JavaScript
Celery
PostgreSQL
FastAPI
Django
Python
$40 hourly
Artem K.
- 4.9/5
- (30 jobs)
Magento Backend Developer | 12+ Years in PHP | Adobe Commerce Expert Are you looking for a Magento backend developer who gets things done — fast, clean, and right the first time? I’m a senior Magento 2 developer with over 12 years of PHP experience and a strong track record of building scalable eCommerce solutions that perform under pressure. I specialize in complex backend development, integrations, and performance tuning for Magento 2 and Adobe Commerce stores. Whether you're: - launching a new store, - integrating custom APIs or ERP/CRM systems, - fixing bugs and slowdowns, - or extending existing functionality — I can help you build a secure, maintainable, and high-performance backend that drives your business forward. What I bring to the table: Magento 2 Expertise: custom modules, checkout, API, cron jobs, events & observers Modern Tech Stack: PHP 7/8, MySQL, Composer, REST & GraphQL APIs Frameworks: Laravel, Symfony components Enterprise Integrations: custom ERP, CRM, and PIM solutions DevOps Ready: Git, Docker, Linux, CI/CD pipelines - Clean, well-documented code - Reliable communication in English - Available for both hourly and fixed-price contracts Let’s talk about how I can help you scale and optimize your Magento store.

MySQL Administration
Laravel
API Integration
API
WooCommerce
MySQL
Yii
Magento 2
Magento
PHP
Web Development
jQuery
WordPress
HTML
JavaScript
Git
$69 hourly
Pawel N.
- 5.0/5
- (15 jobs)
Highly Productive Problem Solver for Your Project! Few more informations about me: I'm a developer with more than 15 years of professional experience in web development. For over eight years, I have been offering my services as a Backend / Symfony developer on Upwork. My area of specialization encompasses a broad understanding of software development for the Web. During my career, I have developed numerous web applications, from contributing as a developer in nimble startups to leading development efforts in expansive worldwide portals. My technical expertise is extensive, encompassing PHP, Symfony / Laravel Framework, MySQL, and Databases (MongoDB, Redis). I'm proficient in node.js (socket.io, express), and JavaScript (Stencil JS, Ionic), and have built APIs using common architectures such as REST and GraphQL. Additionally, I bring to the table experience in managing AWS infrastructure and other servers based on the Linux Operating System specifically for hosting PHP / Symfony projects. My portfolio also includes building HTML mobile apps (Hybrid apps in frameworks like Ionic/Cordova). Particularly, my most recent projects have been centered around the Symfony framework, granting me continuous and profound expertise in the Symfony / PHP ecosystem. My grasp of software development techniques is solid, including writing clean and secure code, object-oriented development, and designing application architecture with a focus on extensibility and scalability. I have recent experience in building projects that integrate AI features through the OpenAI APIs. Beyond just development, I make it a point to grasp a thorough understanding of the entire project from the end user's perspective. My years of experience enable me to provide accurate insights and advice on enhancing your project. What excites me most is problem-solving. I thrive on unraveling complex, challenging issues, and the software industry continually nurtures my knowledge and creativity. I'm also a fan of machine learning, possessing experience in Octave and the R language, along with theoretical knowledge in machine learning techniques. Recently, I have gained experience in building apps with OpenAI, further broadening my skill set. I pride myself on being a 'one-man army' capable of delivering quick results in Full Stack Development. I'm on the lookout for new challenges. If you're interested in working with me, I'd be eager to discuss how I can contribute to your project. Looking forward to connecting with you. Paweł

MySQL Administration
Docker
PostgreSQL
MySQL
MongoDB
React
Apache Solr
Elasticsearch
Custom PHP
Page Speed Optimization
Symfony
DevOps
Performance Optimization
Stencil
Ionic Framework
PHP
$120 hourly
Mateusz D.
- 4.8/5
- (12 jobs)
♛ 𝐓𝐎𝐏-𝐑𝐀𝐓𝐄𝐃 🥇 100% Job Success Ratio ⚡AWS Certified Solution Architect - Professional ⚡AWS Certified DevOps Engineer - Professional ⚡HashiCorp Certified: Terraform Associate DevOps and DevSecOps engineer with a niche specialization in FinOps Engineering. I know how to build amazing cloud solutions while saving your money. Passion for new technologies and challenges drives my career and helps me push the boundaries of the projects I work on. "Mateusz is a terrific freelancer, anyone who works with him will quickly notice his attention to detail. This attention to detail is apparent throughout the entirety of the project workflow..." ✅ 15+ Years of Professional Experience ✅ Worked with small, agile startups and Fortune 100 companies ✅ Experienced DevOps Engineer and Cloud Architect ✅ A wealth of expertise implementing DevSecOps and FinOps methodologies ✅ Containers: Docker, Kubernetes, Nomad, OpenShift, ECS, EKS, Podman ✅ AWS - 12 years experience ✅ CICD: GitHub Actions, CircleCI, AWS CodePipelines, Jenkins, Azure DevOps ✅ Ability to implement DevOps strategies for companies of all size ✅ I break siloes, educate and collaborate to help companies move to another level

MySQL Administration
Solution Architecture
AWS CloudFormation
Continuous Integration
Linux System Administration
DevOps
MySQL
Elasticsearch
NoSQL Database
Kubernetes
Amazon ECS
Terraform
Docker
Amazon Web Services
$40 hourly
ANDRII H.
- 5.0/5
- (6 jobs)
I’m an experienced Web Developer with 15+ years of practice, specializing in PHP, Laravel, Yii2, MySQL, JavaScript, and API development. Over the past 7+ years, I have contributed to a leading travel platform, focusing on custom PHP development, efficient REST APIs, and MySQL performance optimization. On the frontend side, I work with Vue.js, PrimeVue, TailwindCSS, JavaScript, HTML, and CSS to build clean, responsive interfaces when needed. 🧠 I approach every project with a technical and business mindset, delivering solutions that are reliable, scalable, and aligned with real client goals. 💻 Tech Stack: PHP (Laravel, Yii2), JavaScript (Vue.js, PrimeVue) MySQL (query optimization, performance tuning) HTML, CSS (TailwindCSS) Docker, Linux (Ubuntu) Git, GitHub, REST APIs If you're looking for a dependable developer who cares about both clean code and business results, feel free to reach out!

MySQL Administration
Ecommerce Website Development
API Integration
Docker
CSS
HTML
Tailwind CSS
Vue.js
JavaScript
MySQL
Yii2
Laravel
PHP
$40 hourly
Natallia K.
- 4.8/5
- (28 jobs)
Need a bespoke Drupal system that pushes boundaries? With over 15 years of experience across Drupal 6 to 10, I design and build complex, scalable solutions with custom logic, seamless API integrations, and cutting-edge AI capabilities. My 150+ projects prove I thrive on innovation. What I Bring to Your Project: - Custom modules with sophisticated business logic tailored to your needs. - Architecting intricate Drupal systems for scalability and performance. - Expert API integrations (REST, OAuth, social media, payment gateways, email platforms). - AI-powered integrations to enhance functionality and user engagement. - Deep expertise in customizing Search API for advanced, tailored search solutions. - E-commerce solutions with marketplace and accounting integrations (Russian platforms included). - High-performance enhancements and XML feed management. Key Achievements: - Optimized a Drupal site’s Google PageSpeed score from 40 to 100, enhancing user experience and SEO performance. - Built a custom email delivery system that increased user engagement for an e-commerce client. - Implemented AI-driven features for a Drupal site. Why Work With Me? - I turn ideas into robust, one-of-a-kind systems from scratch. - Complex challenges that require a lot of customization, are my passion. Let’s create something extraordinary—contact me for a free consultation!

MySQL Administration
Customer Relationship Management
Website Customization
Amazon S3
Software Integration
RESTful API
Vue.js
Web Development
MySQL
Drupal
PHP
XML
HTML
AJAX
jQuery
CSS
$75 hourly
Michal R.
- 5.0/5
- (26 jobs)
I'm a software engineering professional with over 10 years of experience in the data-processing industry. Currently, I'm helping companies of various sizes to get the best possible tracking setup regardless of their online platform. I'm experienced in: - detailed eCommerce tracking using Google Tag Manager and Google Tags - refined integrations with Ads platforms (Google Ads, Facebook/Meta) with Enhanced Conversions and Advanced Matching - handling Google Consent Mode v2 and other privacy-oriented requirements - implementing advanced server-side GTM setups, including Google Measurement Protocol and Facebook Conversions API - ensuring great page-load times with optimisation techniques and server-side tagging

MySQL Administration
CSS
PHP
MySQL
REST API
HTML
Tracking Pixel
Facebook Pixel Setup & Optimization
Google Analytics 4
JavaScript
Pixel Setup & Optimization
Tracking Tags Installation
Google Tag Manager
$50 hourly
Hennadii A.
- 5.0/5
- (7 jobs)
I am an experienced Software developer with 10+ years of experience in web development, adept at crafting robust PHP and JS applications across diverse complexities. I possess a first-class computer science degree and specialize in PHP 5.x/7.x/8.x and JavaScript ES5/ES6. Proficient in leading frameworks like Symfony and Laravel, skilled in REST API, CI/CD with GitHub/Jenkins, and well-versed in MySQL, PostgreSQL, and MSSQL databases. Passionate about collaborative projects and contributing to open-source. 𝐊𝐞𝐲𝐰𝐨𝐫𝐝𝐬 𝐟𝐨𝐫 𝐭𝐡𝐞 𝐩𝐫𝐨𝐟𝐢𝐥𝐞: Back-End Developer, Back-End Development, PHP Frameworks, PHP Web Developer, PHP programming, Symfony Developer, Symfony 1.X, Symfony 2.X, Symfony 3.X, Symfony 4.X, Symfony 5.X, Symfony 6.X, Symfony 7.X Sylius ,Laravel 4, Laravel 5, Laravel 6, Laravel 7, Laravel 8, Laravel 9, Laravel 10, Laravel 11, API’s, Custom PHP, JavaScript, API Integration, Web Development, HTML, HTML5, MySQL, Bootstrap, CSS. Laravel Engineer, Laravel Developer, PHP Laravel Expert, Symfony Expert, Senior Full Stack Laravel Developer, PostgreSQL, Docker, Gitlab, AWS, RESTful API, jQuery, AJAX, PHP Script, Database, Web Service, MySQL Programming.

MySQL Administration
Laravel
Symfony
API
Amazon Web Services
Software Architecture & Design
WHMCS Development
Docker
RabbitMQ
PostgreSQL
MySQL
JavaScript
SQL
Redis
WordPress
PHP
$25 hourly
Arnold B.
- 5.0/5
- (25 jobs)
I am a senior software engineer with 10+ years of experience specialized in building websites and web applications with various technologies and frameworks. ✔ ReactJS, VueJs, Redux, NextJs, Typescript, Firebase, React-Native ✔ Wordpress, Shopify ✔ Laravel, Codeigniter, Symfony ✔ JavaScript (ES5/ES6/ES7+, Babel) ✔ HTML5, CSS3 with LESS/SCSS, Tailwind ✔ UI/UX, responsive web ✔ Material UI, Bootstrap, Ant-Design ✔ NPM, Yarn ✔ Git, Bitbucket, CI/CD, Docker Key Skills and Tools Proficient in using Trello for project management Expertise in debugging and tracking activity Ensuring Excellence Dedicated to delivering high-performance, quality, and responsive applications Utilize Slack, Zoom, and Skype for effective communication Let's collaborate and bring your ideas to life! Contact me now! 🤝

MySQL Administration
Angular
Vue.js
Tailwind CSS
Next.js
MySQL
API
Symfony
CodeIgniter
React
Node.js
Laravel
Elementor
PHP
Web Design
WordPress
$15 hourly
Ihor R.
- 5.0/5
- (12 jobs)
**IT Specialist & Server Engineering Expert** With over 10 years of experience in the IT industry, I am a results-driven systems engineer specializing in server infrastructure, cloud technologies, and automation. My background includes working with large hosting companies where I excelled in troubleshooting performance issues, configuring servers, and integrating cutting-edge technologies into scalable environments. *Key Expertise*: - LAMP Stack (Linux, Apache, MySQL, PHP) - Linux Mail Stack: Exim/Postfix, Dovecot - Open-Xchange Products: PowerDNS, Open-Xchange, Dovecot Pro - Load Balancing: F5 Big-IP, HAProxy - CI/CD Pipelines: Jenkins, with deep knowledge of scripting Jenkins pipelines and automating workflows - Virtualization: Proxmox (LXC containers, VMs) - Automation: Ansible for streamlined configuration management - Containerization: Docker, Kubernetes for scalable microservice architectures - IaC: terraform I specialize in delivering optimized, secure, and reliable server solutions that meet the growing demands of modern IT environments. My passion for automation and continuous improvement ensures efficient workflows and infrastructure scalability.

MySQL Administration
Iptables
PHP
Bash Programming
Zabbix
Nagios Core
Kubernetes
MySQL
Dovecot
Postfix SMTP Server
cPanel
DevOps
NGINX
Python
Perl
System Administration
$30 hourly
Andrei K.
- 5.0/5
- (2 jobs)
Senior software developer with 10 years of commercial experience, working in teams ranging from 2 to 50 members, both remotely and on-site. Have 2 years of team-leading experience. Built full cycle of development: from gathering product owner requirements to establishing fully automated release process with high test coverage, detailed analytics and CI/CD. Having been an employee of ButcherBox.com from the very beginning and playing a significant role in the technical development of the company, it has now grown to be worth $550 million. Enhanced full stack development by integrating product marketing strategies, such as A/B testing and SEO optimizations. My skills include: • Node.js 10-18, TypeScript, Express.js, Nest.js, TypeORM, Sequalize, Socket.io • Python 2-3 - Flask, FastAPI, Pandas, NumPy, Selenium, Chromedriver, Scrapy • PHP 4-8 - Laravel 4-10, Symfony 1-5, CodeIgniter 1-4, Yii 1-2 • OOP, Design patterns, SOLID, DRY, Unit and Integration tests • MySQL, PostgreSQL - complex queries, data locking, transactions, performance optimization, PostGIS • HTML 4/5, CSS 2/3 - Figma or PSD to complete responsive, mobile-friendly layout using LESS, SASS, Bootstrap, Material, Tailwind • CMSs: Joomla 1-3, Drupal 4-8, Wordpress 2-5 • Blockchain/Crypto - Web3.js, Metamask, Ganache, Truffle, Alchemy, EVM compatible( ETH, BSC, TRX ), BTC, SOL • Custom CMS/Frameworks/Libraries/APIs development • React/Hooks/React-query/GraphQL/Hasura/Next.js/Redux/Gatsby/React Native/Expo • Vue.js/Vuex/Nuxt.js/Vue Router/Vue CLI • High-load/site speed and bottlenecks performance optimization • Secure code that prevents SQL/Code injections, XSS, CSRF and other vulnerabilities • Payment gateways integration: Stripe, PayPal, Google Checkout, 2Checkout, Authorize.net, Cybersource, Jeton, Pay4fun, MuchBetter, Astropay, PayDo, Moonpay, Oobit, Paxful • Web services ( XML, SOAP, JSON, RSS, REST ) • SVN, Git, Mercurial version control systems • SEO, internet marketing • Web crawlers/parsers using Selenium, Puppeteer • Linux administration - Ubuntu, CentOS ( Nginx, Apache, php-fpm, Iptables, Mysql ) • AWS( EC2, ECS, RDS, Lambda, Amplify, API Gateway, DynamoDB, SQS, SNS, CloudFront, S3) • APIs integration: Shopify, Zapier, Facebook, Twitter, Google maps, Google Analytics, OAuth, Twilio, SalesForce, SugarCRM, Zurmo, Thumblr, RETS, NetForum, Leads360, Zoom, Mandrill, Mixpanel and more • ElasticSearch/Sphinx/Solar full text search engines • CI/CD/DevOps using Docker, Ansible, CircleCI, New Relic, Datadog, Logrocket, Sentry

MySQL Administration
Linux
NestJS
ExpressJS
Laravel
MySQL
Vue.js
React
Node.js
PHP
$15 hourly
Maksym V.
- 5.0/5
- (8 jobs)
🚀 Fast & High-Quality Development – Delivering efficient solutions without compromising quality. 💡 Smart & Scalable Solutions – Writing clean, maintainable, and future-proof code. 🌟What sets me apart? Strong work ethic, clear communication, and a focus on results. My goal is to build long-term relationships with clients by providing reliable, high-quality solutions. Hey there! I'm Maxim, a dedicated and detail-oriented web developer based in Warsaw. While I'm new to UpWork, I bring years of hands-on experience in PHP and JavaScript, successfully delivering projects for businesses and startups. My expertise includes: ✅ PHP Development – Building robust and scalable web applications. ✅ JavaScript Excellence – Crafting dynamic, user-friendly interfaces. I’m excited to prove my skills and help bring your ideas to life. Let’s discuss your project—I'll ensure a smooth, hassle-free experience from start to finish! Best regards, Maksym

MySQL Administration
React
CSS 3
CSS
HTML5
HTML
Angular
Bootstrap
MySQL
PHP
Next.js
JavaScript
$24 hourly
Andrii S.
- 5.0/5
- (25 jobs)
At this point probably you've already read dozens of AI-generated or copy-pasted "100% Job success, Top Rated 👑" profiles overviews of other freelancers and I bet you don't want to read another one. To make it short - I'm proficient at AWS as Solutions Architect and DevOps, worked with all the main services; also I have a big experience with PHP backends and Python. Key points: * Doing things in a proper way is my priority. E.g. I will never create static AWS IAM key for an app running on EC2 instance, even if your dev team insists on that (probably simply because they don't have enough expertise) - the proper way to do that is to leverage IAM roles, because this is much more secure. I already had several customers suffering from conflicts with their dev teams where dev teams simply destroyed their setup, because they had static IAM keys, while with IAM roles that would be impossible * I always support my customers after the contract is ended. I cannot do 24/7 support, but believe me, in case of any issue, I'll respond as soon as possible * If you hire me for resolving some bug/issue and it's not resolved by me - I won't charge you. Please note, that this applies to initially described bug/issue; in a situation when there is a next bug appears after the first one is fixed - I'll let you know if I can solve it or no and what will be an additional cost (typical example - after the fix of SSL issue it turns out that site is not working due to some mistakes in code - this is different issue, not related in any way to the first one) * I'm not a good fit for any job that requires 24/7 support even with rotation - even though I'm responding as fast as I can - I cannot always guarantee that * I can work via screenshare, but that's not as efficient as direct access, and therefore will be more expensive as more time will be spent Thanks for reading this and looking forward to our collaboration.

MySQL Administration
Amazon Web Services
Docker
GitLab
Amazon ECS
MySQL
PHP
Terraform
AWS Development
AWS Lambda
Database Management
Cloud Migration
Cloud Computing
Cloud Architecture
DevOps
Architecture
$30 hourly
Oleh V.
- 5.0/5
- (3 jobs)
Thanks for visiting my profile. I'm a professional full-stack web & blockchain developer highly skilled in various aspects. With my extensive experience in web development and my strong understanding of both front-end and back-end development, I am confident that I can contribute to the success of projects by leveraging my skills and experience to create a seamless user experience. I have been working as a web & blockchain developer for over 7 years and have experience with a variety of frameworks, including Solidity, Web3, Python/Django, PHP/Laravel and Node/Express/Nest. I am skilled in developing scalable, secure, and efficient web applications and have experience with MySQL, MS-SQL, Oracle and PostgreSQL databases. In addition to my backend expertise, I am also proficient in front-end technologies such as HTML, CSS, JavaScript, and jQuery. I have experience with popular front-end frameworks such as Next/React and Vue/Nuxt, and I am skilled in building responsive and user-friendly web interfaces. I am familiar with the Agile development methodology and have experience working in teams using tools such as Git, JIRA, and Trello. I am also comfortable with Linux-based systems and have experience deploying and maintaining web applications on cloud hosting platforms such as AWS, GCP and DigitalOcean. I am a self-motivated and detail-oriented individual who takes pride in delivering high-quality work. Sincerely

MySQL Administration
PostgreSQL
MySQL
WooCommerce
Shopify
Node.js
Web3
Solidity
React
Next.js
Laravel
Ethereum
JavaScript
$22 hourly
Alkar Y.
- 4.1/5
- (57 jobs)
Here are my skills: 👌 Proficient in Elementor, adept at resolving issues and crafting new websites. 👌 Specialized in optimizing the performance of WordPress websites. 👌 Experienced in maintaining, editing, and troubleshooting WordPress sites. 👌 Capable of setting up and customizing WordPress themes. 👌 Well-versed in using various WordPress builders and working with hardcoded sites. 👌 Possess over 8 years of experience in WordPress development. 👌 Known for creating functional, visually appealing, and mobile-friendly WordPress websites. Here's why collaborating with me is the right choice: ✦ I assure excellent execution of your project. ✦ Expect prompt and proficient work. ✦ I'm meticulous about details. ✦ Deadlines will always be met. While fixed payments are preferred, I'm open to discussing hourly rates or any other terms you prefer. Thank you for considering my profile. I eagerly anticipate the opportunity to work with you! Best regards, Alkar. Highlighted skills: CSS, WordPress, WooCommerce, HTML, Bug Fix, Elementor, Elementor Pro, Blog, WP Rocket, WordPress Theme, Page Speed, Optimization, WordPress Multisite, WordPress Development, Troubleshooting, WPML, PHP, Wpbakery, Divi, cPanel, GoDaddy, Siteground, MySQL, phpMyAdmin, SSL, SSL issue, Mixed Content Wordpress Fix, Speed Up Wordpress Sites, Wordpress Migration, WP Engine, Wordpress Issues, Wordpress Developer, Mixed Content, Wordpress Expert, jQuery, Javascript Conflicting Scripts Wordpress, Wordpress Update Plugin, Wordpress Update, update PHP version, Hosting Issue Wordpress, Contact Form Recaptcha, FIxed Contact Form not Sending Email, Contact Form Issue, Urgent Wordpress Bugs Fixed, Website Maintenance.

MySQL Administration
WooCommerce
PHP
MySQL
Web Development
Vue.js
HTML5
Sass
CSS
jQuery
HTML
WordPress
JavaScript
gulp
$20 hourly
Ashot S.
- 5.0/5
- (22 jobs)
I'm a highly skilled and experienced WordPress/WooCommerce, PrestaShop, JavaScript,/Vue, PHP/Laravel developer ready to transform your web ideas into reality ✨. I'm passionate about creating user-friendly, high-performance, and visually stunning websites that captivate your audience and boost your business 📈. Whether you need a simple landing page or a complex e-commerce store, I'm here to help you achieve your goals 🎯. My expertise lies in: HTML and CSS for crafting clean and semantic markup 🪄 JavaScript for interactive and engaging user experiences 🎮 Vue.js for building modern and performant web applications 🖥 WordPress/WooCommerce development for seamless e-commerce solutions 🛒 PrestaShop development for robust and scalable online stores 💰 PHP for server-side development and backend functionalities 👨‍💻 Laravel for creating robust and scalable web applications 💪 I'm also a team player and a quick learner, always eager to take on new challenges and expand my skill set. 💪 Let's work together to create the website of your dreams! 🤝

MySQL Administration
Laravel
Web Development
Vue.js
jQuery
CSS Grid
WooCommerce
CSS
PHP
JavaScript
CSS 3
HTML5
WordPress
Sass
MySQL
$40 hourly
Artur S.
- 5.0/5
- (7 jobs)
Main interest => Golang (Go) development and software architecture. Other languages: Laravel(PHP) - production experience with big projects. Rust, Python, Nodejs, Java - basic level (small tools, agents, scripts, POC projects). Technical stack: Linux, Grafana, Prometheus, InfluxDB, Telegraf. GCP, Firebase, AWS, Oracle Cloud. Ebay API (desktop applications, tools etc.) Ebay to Walmart bulk upload. Freeswitch, Kurento, Cisco CUIC, UCCX. SQL (MySQL, Postgres), Elasticsearch, Redis. Messengers integrations (FB messenger, Skype, Viber, Telegram, VK). Flussonic, ONVIF, ISAPI, OPCUA. Wails desktop apps with React JS. Selenium, Selenoid, Playwright automation.

MySQL Administration
Rust
FreeSWITCH
Cisco CallManager
Facebook Development
PostgreSQL
eBay API
PostgreSQL Programming
Golang
MySQL
Prometheus
Laravel
Firebase
Grafana
Data Scraping
Elasticsearch
Selenium
$40 hourly
Ross H.
- 5.0/5
- (11 jobs)
🚀 I'm ready to get started ASAP, but a call to go over your requirements is a must 💬 🛑 I focus on middle and long-term projects only — I don’t take on small tweaks or one-off fixes. Thank you for understanding! Doubtful about finding a web developer 𝘄𝗵𝗼 𝗰𝗮𝗻 𝗵𝗮𝗻𝗱𝗹𝗲 𝗰𝗼𝗺𝗽𝗹𝗲𝘅 𝗰𝗵𝗮𝗹𝗹𝗲𝗻𝗴𝗲𝘀 or pick up the pieces from a previous failure? Wondering if it's possible to have a bug-free, scalable solution? I've seen and solved it all. With a commitment to deliver and a track record of success, I am here to protect your project from common setbacks and elevate it to its highest potential. ✅ 15+ years of experience ✅ 70+ projects delivered ✅ Upwork Top Rated ✅ 10k+ Hours ✅ 100% Success Score ✅ 5 Stars ✅ Backed by a skilled team for handling complex projects 👋 Hi! I'm a Senior Full stack developer with over a decade of experience in the tech industry. I specialize in delivering comprehensive frontend and backend solutions, from concept to deployment, bolstered by solid experience as a Solution Architect and a Dev Lead. In 2015, I gathered my own web dev team from the ground up, as an extension of my software developer expertise and wisdom. Now, with over 70 successful projects behind us, we focus on creating IT solutions for businesses to guarantee their growth and prosperity. ---=== Why I Stand Out: ===--- - 🛠️ 𝗨𝗻𝗺𝗮𝘁𝗰𝗵𝗲𝗱 𝗥𝗲𝗹𝗶𝗮𝗯𝗶𝗹𝗶𝘁𝘆: Every project I undertake is guaranteed to reach completion, irrespective of the initial condition or challenges encountered along the way. - 💼 𝗖𝗼𝗻𝘁𝗶𝗻𝘂𝗼𝘂𝘀 𝗦𝘂𝗽𝗽𝗼𝗿𝘁: My relationship with clients extends beyond project completion. I offer ongoing support to ensure continued success and adaptability in an ever-evolving digital landscape. - 👥 𝗦𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝗧𝗲𝗮𝗺 𝗟𝗲𝗮𝗱𝗲𝗿𝘀𝗵𝗶𝗽: While I thrive as a sole developer, I also lead a talented team of developers, ready to scale according to your project needs. This flexibility allows me to tackle projects of any size and complexity, delivering high-quality solutions on time and within budget. - 🎯 𝗘𝗻𝗱-𝘁𝗼-𝗘𝗻𝗱 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀: From initial consultation to final delivery, I manage all phases of the development cycle. This comprehensive approach ensures a seamless, efficient, and transparent process, culminating in a product that exceeds expectations. ---=== My Technical Foundation: ===--- - 🌐 Frontend Expertise: Proficient in HTML, CSS, JavaScript, TypeScript, and an array of frameworks & libraries including React.js (with Redux, Thunk, Sagas, Next.js), Bootstrap, Material UI, CSS in JS, Tailwind, and React-Admin. - 🔙 Backend Proficiency: Skilled in Node.js, Express.js; along with Feathers.js, RESTful API, GraphQL development, Socket.IO, Strapi, and BullMQ. - 📊 Data Visualisation Mastery: Experienced with D3.js, Chart.js, GSAP, Three.js, React Three Fiber, and techniques involving Canvas and SVG. - 💾 Database Management: Competent in managing data using SQL, PostgreSQL, MongoDB, and ElasticSearch. - 🚀 DevOps & Deployment: Knowledgeable in Docker, Kubernetes, and implementing CI/CD pipelines with GitHub, GitLab. ---=== Personal touch: ===--- When I'm not solving tech challenges, I'm a passionate gamer, among the top 0.1% with several games completed to 100% on Steam, a dedicated father to two incredible daughters, and a husband in a nearly ten-year-strong marriage. I'm also delving into Gestalt therapy studies, aiming to deepen my self-awareness and foster personal growth. ---=== 𝗬𝗼𝘂𝗿 𝗣𝗿𝗼𝗷𝗲𝗰𝘁, 𝗠𝘆 𝗣𝗿𝗼𝗺𝗶𝘀𝗲: ===--- Choosing me for your development needs means partnering with a developer whose track record is as reliable as the solutions I provide. Let's turn your vision into a success story that stands the test of time, challenge, and change. I'm skilled in JavaScript, ReactJS, NodeJS, TypeScript, MongoDB, Express.js, VueJS, and Three.js. I use HTML, CSS, Bootstrap, Material UI, Sass, SCSS, LESS, Styled-Components, and Emotion. I excel in data visualization with D3.js, Chart.js, Highcharts, amCharts, and KonvaJS, and interactive design with FullPage.js, ScrollMagic, Isotope, Masonry, TinyMCE, Slate, Draft.js, XML.js, PDFMaker, and Sheet.js. Tools like React-Admin and ReCharts enhance usability. I create robust APIs using Preact, GraphQL, RESTful API Development, OpenAPI, and Postman, and frameworks like Socket.IO, Feathers.js, KoaJs, and Strapi. I handle tasks with Nodemailer, Passport.js, BullMQ, Agenda, CryptoJs, Node Scheduler, Jimp, Sharp, Wavesurfer.js, and FFMPEG.js. I develop geospatial apps with Leaflet, Mapbox, Google Maps API, GeoServer, PostGIS, and OpenStreetMaps. For testing, I use Jest, Mocha, Jasmine, Cypress, Puppeteer, Playwright, Artillery, and k6. I bring animation to life with GSAP, Anime.js, Particles.js, Three.js, Babylon.js, r3f, Snap.svg, and WebGL. I work with Wordpress Lodash, Moment.js, DayJs, RxJS, Immutable.js, Axios, Cheerio, JSON Server, Faker.js, and develop mobile app and desktop applications.

MySQL Administration
TypeScript
MySQL
API Integration
API
MongoDB
Next.js
Web Design
Web Application
Full-Stack Development
Node.js
Web Development
HTML
CSS
React
JavaScript
$35 hourly
Yurii K.
- 5.0/5
- (4 jobs)
I am a Senior Full-Stack Engineer with over 8 years of experience in developing high-performance, secure, and scalable web applications, primarily in the financial technology (fintech) and AI-driven platforms sectors. My expertise spans from crafting interactive user interfaces to building robust backend services, and deploying applications in cloud environments. I bridge the gap between frontend and backend development to create seamless, end-to-end solutions that meet both business and technical requirements. 🖥️ Frontend Development I specialize in creating dynamic, responsive, and user-friendly interfaces using React, Angular, TypeScript, and JavaScript. My experience includes building real-time financial dashboards, investment tools, and responsive SPAs that handle large data sets while ensuring smooth performance. I focus on modular, reusable component-based architectures that are easy to maintain and scale. I also ensure that all applications are optimized for mobile devices and offer high accessibility and user-friendliness. 💻 Backend & Microservices On the backend, I develop scalable microservices using Java, Spring Boot, Python, and Spring Cloud. I’m skilled in building robust APIs (both REST and SOAP) and integrating them with complex systems. My expertise includes implementing secure authentication with JWT and OAuth2, crucial for protecting sensitive financial data. In fintech, I’ve worked extensively with ISO 20022, ensuring seamless communication between financial institutions. 🗃️ Databases & Cloud Infrastructure I have hands-on experience with both SQL (PostgreSQL, MySQL, MSSQL) and NoSQL databases (MongoDB, AWS DynamoDB), designing optimized schemas for performance under heavy data loads. I deploy applications in AWS, Azure, and GCP, using tools like Docker, Jenkins, and CI/CD pipelines to ensure efficient and secure deployment. This ensures smooth operation in a cloud-native, scalable environment. 🏦 Fintech & AI Expertise I am passionate about fintech applications, particularly payment gateways, investment tools, and KYC/AML systems. I integrate AI solutions into web applications to provide predictive analytics, personalization, and smart search capabilities, leveraging tools like OpenAI API and TensorFlow.js. 🤝 Soft Skills & Collaboration I am a proactive team player with strong communication skills, and I have worked in Agile/Scrum environments where collaboration and fast iterations are essential. I believe in clean code and follow best practices to ensure that the codebase remains maintainable, testable, and scalable. I understand the importance of delivering projects on time and within budget, and I am adept at collaborating with cross-functional teams, including designers, product managers, and backend developers, to bring projects to life. 🚀 Let’s build something great together! If you’re looking for a full-stack developer with a strong foundation in both fintech and AI, I’m ready to help you turn your project into a secure, scalable, and user-friendly solution. Reach out today, and let’s discuss your goals!

MySQL Administration
Machine Learning
AI Development
SQL
REST API
Spring Boot
Python
MongoDB
MySQL
Microsoft Azure
Amazon Web Services
TypeScript
Angular
React
Spring Framework
Java
$65 hourly
Heorhii P.
- 5.0/5
- (1 job)
Welcome to my profile! I’m a Web Development expert with 10+ years of experience in the field. Tech Leader and Developer on 15+ software projects: custom CRM systems, HIPAA-compliant healthcare software, high-load distributed systems with microservices, content management systems, integrated IoT systems, web portals, services, and APIs. Solid requirements analysis and elicitation - Offering at least a couple of project scope realization options - Visualization of the possible technical strategy in a format of an architecture scheme - Preparation of the Technical Vision Recently I’ve been involved in a bunch of IoT and architecture-aimed researches as a part of my core expertise to stay in touch with new technological insights and keep my professional expertise up to the industry best practices. Besides these, here is a list of bells and whistles I can also provide: Technologies: - Frameworks: Django, Django REST framework (DRF), Flask, aiohttp - Databases: MySQL, MariaDB, PostgreSQL, Redis, Amazon DynamoDB - Web servers: Nginx, uWSGI, Werkzeug - Serverless: AWS Lambda - Deployment: Docker, Docker-Compose, Docker Swarm - Queue: celery - GUI: Kivy, PyGObject, Tkinter, wxPython - Data Analysis: NumPy, Pandas - Manipulating Video: moviepy, openCV, scikit-video - Web Crawling & Web Scraping: Scrapy - Tools: PyCharm, pip, virtualenv, venv - Chatbots & Virtual Assistants: Amazon Alexa Skills, Errbot, Viber, Telegram, Slack, Skype, Azure Bot Service, Facebook Messenger - Hardware: Raspberry Pi, Raspberry Pi Compute Module, ASIC, Nvidia Jetson, Arduino, Orange Pi, Banana Pi, Intel Movidius, custom hardware - IoT Cloud: IBM Watson IoT Platform, AWS IoT, Azure IoT, Google Cloud IoT, Serverless (Python, JavaScript), other services Domains: - Retail - Construction and Real Estate - Aviation, Tourism, Travel - Entertainment and Social networking - Marketing and Advertising - Fintech - Insurance - Industrial - HoReCa - Mental health and Healthcare - Management Project types: - ERP, CRM, POS - Complex web systems - Web application - Website - Standalone module, Framework, SDK - Proof of Concept I’m open to both tech consultancy and development opportunities. Feel free to get in touch with me and my team if you want to discuss a web application or multi-component web platform concept, I am sure I will have valuable and interesting ideas to share with you!

MySQL Administration
Heroku
Redis
Elasticsearch
PostgreSQL Programming
Flask
PostgreSQL
Internet of Things Software
Web Scraping
MySQL
Google Cloud Platform
MongoDB
Data Scraping
Amazon Web Services
Web Development
Python
$50 hourly
Aliaksander D.
- 5.0/5
- (4 jobs)
DevSecOps engineer with 15 years of experience in cybersecurity, software development and linux administration. Creative, motivated and self driven. I enjoy solving problems and coming up with ideal solutions to them. I managed to work with different technologies and languages where I always relied on performance and effectivity. My main responsibilities: Setting up a logging system Integrated automatical security testing tools for continuous vulnerability management. Hardering linux services using CIS benchmarks Security incidents handling (including malware analysis, external attacks on the infrastructure, attacks on the applications and users). Performed security testing of company's applications Develop security cli tools(please see my github profile) Support and creation of wazuh rules API security Develop rules against phishing attacks Maintaining documentation Code threat assessment Stack of technologies: Ansible, OpenStack, KVM, qemu, virtual networks Wazuh, OpenSearch, Filebeat Nftables, iptables Nmap, masscan, hping, selfdev tools Develop rules against phishing attacks Code review Stack of technologies: Ansible, OpenStack, KVM, qemu, virtual networks Wazuh, OpenSearch, Filebeat Nftables, iptables Nmap, masscan, hping, selfdev tools

MySQL Administration
Automated Testing
Sphinx
Security Engineering
Perl Mojolicious
Linux
Database
MySQL
Docker
Microservice
RESTful API
Kubernetes
Golang
Perl
PostgreSQL
$60 hourly
Urszula D.
- 5.0/5
- (3 jobs)
I have been programming since 2017. Like most developers at Polcode, my tech stack is diverse and I’m confident using not only my favorite Python, but also JavaScript, and I’ve worked with multiple frameworks such as Django, FastAPI, React.js, Node.js and others. I'm most satisfied with my backend coding skills, but I love to grow by taking on new programming challenges, especially experimental and niche that make me think outside the box. I'm familiar with MVC, TDD, and BDD, as well as best programming practices and have worked on projects involving data processing, workflow automation, NLP, browser extensions, and custom authentication modules. In terms of personality, I'm a talkative, cheerful, and proactive person, who performs very well both in remote and office work conditions. I'm a strong believer in frequent demonstrations of progress that can be shared with clients, product owners, and any stakeholders during webinars and online sessions. My technology stack: - Python - Django - Docker - PostgreSQL - JavaScript - TypeScript - Node.JS - React.JS - Redux - Tailwind - Pytest - Postman - Minio - Pyramid - AWS My approach: - No task too difficult to handle - Achieving business goal is the priority, not the implementation details - Unchartered waters of product development are my ongoing motivation to keep moving forward More about Polcode Polcode provides customized software solutions for startups, SaaS companies, eCommerce stores, and enterprise clients worldwide. From building the product from scratch to extending the existing teams, we have expertise in a diverse set of open source technologies and platforms to bring innovation in an agile fashion. Our team excels in PHP, Symfony, Laravel, Magento, Go, React Native, React.js, Vue.js, Ruby on Rails and Angular. With over 150 people, Polcode has either empowered client teams or delivered end-to-end development projects for brands from fintech, manufacturing, consulting, eCommerce, marketing or eLearning industries and is recognized as Top Developer in Poland by Clutch. Looking forward to our cooperation! Urszula, Polcode Dev Team

MySQL Administration
React
Google Chrome Extension
Minio
Data Extraction
Jira
Data Annotation
Linux
React Native
Git
Cypress
Django
Data Processing
MySQL
Python
JavaScript
$45 hourly
Anton S.
- 5.0/5
- (4 jobs)
I'm high skilled full stack web developer with more than 9 years expirience. My main specialization difficult projects with various functions. I can create for you custom CMS, booking system (for restaurantes, hotels, etc.), control panel for you current projects or for you bots, analytics system for your sales department, application for your twitch channel, online store, custom project for actors or musicians, etc. As well I can create bot for you discord server, telegram group or twitch channel. If you need landing page I can help you with this task. I can integrate differens API for your project, or create API for your task. Main stack which I use in my work: 1. For backend - PHP, Laravel, MySQL 2. For frontend - CSS3, HTML5, React.js, Tailwindcss If you need more interactive for your clients (or visitors), I can create real-time application (like real-time notifications) with Node.js. I have some skill in Figma. Last five years I work with various projects, have much expirience, I can realese all what you need, and can help you if you have questions, just write me!

MySQL Administration
JavaScript
Ecommerce Website
Analytics Dashboard
Chatbot Development
Node.js
Bot Development
Twitch
React
CRM Development
Booking Services
Websockets
API
Laravel
PHP
MySQL
$60 hourly
MacIej K.
- 5.0/5
- (4 jobs)
Hi there Over 3 years of experience in web development. Ready to start the project immediately and deliver on time without any bugs, errors. Providing regular reports on the project development and communicating on every aspect of the timely implementation is crucial in my workflow. My main focus at work is on code quality, extensibility, and compatibility, creating sustainable, future-proof software solutions proven to work as well in current as in later project cycle of life, without the worry of compatibility with future software versions and new project needs. I put my best concern to keep the client happy not only at the moment of receipt but also years after my last changed line of code. I’m also a team player who strives to motivate and inspire other team members with a bit of humor. My technical expertise: =================================== - Using GIT, - Task management tools: Redmine, Trello, JIRA, - Using REST services, - Working with external/social media APIs (Google Maps, Facebook, Twitter), - Page load speed optimization, - Working with data storage in MySQL, - code optimization (minimization, caching etc.). - Docker - Configuring CI/CD pipelines and workflow - Linux - Cloud Services - good knowledge of technology and electronics background thanks to the formal education My technology stack: =================================== - Backend: - PHP, - MySQL, PostgreSQL - WordPress, WooCommerce, - NodeJS, Express - Frontend: - Advanced JavaScript - React - jQuery - CSS: SASS, LESS - Bootstrap, Tailwind - NPM, Yarn - Webpack, Gulp More about Polcode Polcode provides customized software solutions for startups, SaaS companies, eCommerce stores, and enterprise clients worldwide. From building the product from scratch to extending the existing teams, we have expertise in a diverse set of open source technologies and platforms to bring innovation in an agile fashion. Our team excels in PHP, Symfony, Laravel, Magento, Go, React Native, React.js, Vue.js, Ruby on Rails and Angular. With over 150 people, Polcode has either empowered client teams or delivered end-to-end development projects for brands from fintech, manufacturing, consulting, eCommerce, marketing or eLearning industries and is recognized as Top Developer in Poland by Clutch. Looking forward to our cooperation! Maciej, Polcode Dev Team

MySQL Administration
React
Bootstrap
CSS
MySQL
WordPress
WooCommerce
PHP
API
JavaScript
Want to browse more freelancers?
Sign up