Upwork home
Sign up
Secondary

Hire the best Git Developers in Warsaw, PL

Check out Git Developers in Warsaw, PL with the skills you need for your next job.
Hire freelancers
  • $115 hourly
    • 5.0/5
    • (6 jobs)
    A highly skilled C++ & C# & Python AI developer with over 6 years of experience in designing, developing, and optimizing high-performance systems, with a strong focus on algorithm design and optimization. I have a solid foundation in C++ (C++11/14/17), STL, multithreading, and system architecture, and I’ve successfully delivered numerous projects across industries like finance, telecommunications, and embedded systems. I specialize in developing scalable, multithreaded applications that handle millions of requests per second, and optimizing algorithms for real-time data processing and system efficiency. My expertise in algorithmic problem-solving and performance tuning, combined with my leadership in development teams, ensures that I can deliver cutting-edge solutions for even the most complex projects. Here’s what I bring to the table: Strong Algorithm Design Skills: Extensive experience in designing, optimizing, and implementing efficient algorithms for high-performance systems. Proficiency in C++, STL, and Boost libraries: Deep knowledge of core libraries and frameworks for creating efficient, scalable solutions. Multithreading & Asynchronous Communication: Expertise in building real-time, multithreaded applications using Boost.Asio. Real-Time Data Processing & Optimization: Experience optimizing algorithms with OpenMP and OpenCV to enhance processing speed and system performance. Cross-Platform Development: Skilled in building high-performance applications for Windows, Linux, and macOS using Qt. System Architecture & Performance Tuning: Deep understanding of system-level performance optimization, memory management, and efficient resource use. Key Skills: C++ (C++11/14/17), STL, Boost Algorithm Design & Optimization Multithreading & Asynchronous Programming (Boost.Asio) High-Performance Systems Design Real-Time Data Processing (OpenMP, OpenCV) Cross-Platform Development (Qt) System Architecture & Performance Tuning Unit & Integration Testing (Boost.Test) Embedded Systems Development Python (for scripting, ETL, data processing) Git, CI/CD, Docker, Linux If you're looking to design a high-performance system, optimize your algorithms, or need an expert in C++ or Python to solve complex technical challenges, I’m here to help. Let’s discuss how I can bring value to your project and ensure its success. Availability: Full-time / Part-time / Project-based Keyword: Linux, Docker, Git, CI/CD, Python, C++, C#, STL, Boost, Boost.Asio, OpenMP, OpenCV, Qt, Multithreading, Algorithm Design, Algorithm Optimization, High-Performance Systems, System Architecture, Real-Time Data Processing, Scalable Applications, Embedded Systems, Finance, Telecommunications, Memory Management, Performance Tuning, Unit Testing, Integration Testing, Boost.Test, Scripting, ETL, AI Developer, Full-Time, Part-Time, Project-Based
    Featured Skill Git
    Linux
    Docker
    CI/CD
    Python
    Boost
    OpenCV
    OpenMP
    Algorithm Development
    C++
  • $21 hourly
    • 5.0/5
    • (5 jobs)
    PROFESSIONAL SUMMARY Hello! My name is Katherine. I am a Front-End developer with 5 years of experience in the commercial sphere. I can create high-quality solutions using key skills: HTML5/CSS3, Javascript, React, JQuery, Magento 2, Shopify, Shopware 6, PrestaShop, WordPress, there are other skills, they are described in my resume. Highly organized and attentive to detail. Able to analyze data, develop strategies, and propose solutions to complex problems. I strive to use skills and knowledge to contribute to the success of the team.
    Featured Skill Git
    Tailwind CSS
    Figma
    JSON
    jQuery
    WordPress
    Shopware
    PrestaShop
    Bootstrap
    React
    Magento 2
    Sass
    CSS
    HTML
    JavaScript
  • $50 hourly
    • 5.0/5
    • (13 jobs)
    A cross-disciplinary Senior Front-End Engineer and Product Designer expert with 10 years experience in both engineering and design. Background and professional experience. For me it's all started back in 2008, more than a decade ago. Never worked in outsourcing companies, instead I was always a part of product companies, which is great, as a product thinking is an essential part of my DNA. Had a pleasure to work with companies like Taxify (ride hailing and transportation), DataRobot (machine-learning and AI), etc. The most recent "achievement" was transforming Bolt (former Taxify) to a Design-Driven Product Development company, you can read more on this matter on Medium [search for Design-Driven (Product) Development]. 
 More details, skills, tools, regarding to my previous experiences in big product companies are covered in my beautiful CV. — If you don't have it, I insist you go request from me and check it out — You'll like it!
    Featured Skill Git
    User Experience Design
    Vuex
    Redux
    JavaScript
    Vue.js
    HTML5
    React
    React Native
    Product Design
  • $50 hourly
    • 5.0/5
    • (15 jobs)
    Cloud DevOps engineer. Have about 3 years of System administration and 6 years of DevOps experience.
    Featured Skill Git
    Terraform
    Docker
    Deployment Automation
    Kubernetes
    Jenkins
    AWS CloudFormation
    Microsoft Azure
    Amazon Web Services
    Linux
  • $40 hourly
    • 5.0/5
    • (13 jobs)
    Software Engineer with over 3 years of experience🚀Python | Web apps | ETL Pipelines | Chatbots ✅Hire me if you want to talk Tech in Business language. 📌You want to set up a new project? I will propose the best technology stack and Architecture! 📌You have an ongoing project? I will quickly fit in and do my best to support the team and Business goals! 📌You want to refactor your code? I will do a safe transition and make sure nothing is left behind! 💪More about my skills that will help us achieve the best result: ✅Test Driven Development & Domain Driven Design ✅FastAPI, Django/DRF, Flask, Celery, SQLAlchemy ✅Numpy/Pandas, Apache Spark, Apache Airflow ✅ SQLite, MySQL, Microsoft SQL, PostgreSQL, Alembic; ✅ NoSQL - MongoDB, Redis, Elasticsearch; ✅ AWS, Kubernetes 👨‍💻Even more facts about me! 🔸I do tech talks 🔸I held company hiring events 🔸Reach out to know more!
    Featured Skill Git
    Python Asyncio
    Linux
    Flask
    Docker
    PostgreSQL
    Beautiful Soup
    GitHub
    NoSQL Database
    RESTful API
    Django
    SQL
    Telegram API
    MongoDB
    Python
  • $85 hourly
    • 5.0/5
    • (8 jobs)
    Experienced Java developer with solid skills of system design and analytical mindset. I also have engineer's degree in computer science.
    Featured Skill Git
    Vert.x
    Cucumber
    Micronaut
    JUnit
    Java
    Apache Groovy
    Microservice
    Hibernate
    SQL
    Spring Framework
  • $60 hourly
    • 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
    Featured Skill Git
    React
    Google Chrome Extension
    Minio
    Data Extraction
    Jira
    Data Annotation
    Linux
    React Native
    Cypress
    Django
    Data Processing
    MySQL
    Python
    JavaScript
  • $60 hourly
    • 5.0/5
    • (2 jobs)
    My commercial adventure with programming started in 2014. So far, I have worked for the medical, educational, financial, and hotel industries. I like to code in Ruby on Rails, but I'm not afraid to deal with other languages ​​- I know Python, JavaScript as well as other js-like languages such as CoffeeScript. Right now, one of my professional plans for the near future is to master React. I am a part of the Polcode team, a Polish software development company established in 2006 with over 150 developers, designers, project managers, DevOps, and QA specialists onboard. This means that besides my programming skills you always have access to a full-stack product design & development team. My technology stack: - Backend: Ruby, Ruby on Rails, Python - Frontend: Javascript (ES5, ES6+, jQuery), HTML5, CSS3, Less, Bootstrap, Angular - Databases: MySQL, MongoDB, Postgresql - Ruby on Rails testing: RSpec - Others: Linux, Docker My approach: - team-player - creative - eager to learn - mentor of less experienced developers 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! Maciek, Polcode Dev Team
    Featured Skill Git
    Elasticsearch
    Docker
    JavaScript
    jQuery
    Python
    Scrum
    Jira
    MongoDB
    Ruby on Rails
    Blockchain
  • $50 hourly
    • 5.0/5
    • (6 jobs)
    Hi 👋! If you are looking for a Full Stack Software engineer, then you are in the right place! I have more than 5 years of experience in full-cycle development and have successfully completed several huge web projects. My expertise is ⤵️ ✔️.NET ✔️ASP.NET ✔️ASP.NET MVC 5 ✔️Razor Pages ✔️EntityFramework ✔️HTML ✔️CSS (SCSS) ✔️Bootstrap ✔️JavaScript ✔️React.js (Redux, RESTful API, React Router) I'm result-oriented person, always trying to find optimal solution and making your business work faster⚡️
    Featured Skill Git
    Code Refactoring
    .NET Core
    TypeScript
    API Development
    ASP
    CSS
    Microsoft SQL Server
    C#
    JavaScript
    HTML
    AJAX
    jQuery
    GitLab
    Entity Framework
  • $39 hourly
    • 5.0/5
    • (4 jobs)
    I have worked in full stack engineering for my entire over 15 years career. As a senior full-stack developer proficient in JavaScript/TypeScript, PHP, Python, I bring a comprehensive skill set to every project, seamlessly integrating cutting-edge technologies and frameworks such as Codeigniter, Laravel, React, Vue to make the goal of client. SKILLS - PHP, MySQL (15 years of experience) - HTML, JavaScript, jQuery, CSS (15 years of experience) - Yii, Codeigniter, Laravel (10 years of experience) - Yii, Codeigniter, Laravel (10 years of experience) - React, NodeJs (5 years of experience) - Vue, Angular (2 years of experience) Thank you in advance for your time and consideration. I look forward to working with you soon.
    Featured Skill Git
    PHP
    React
    Database
    International Development
    API
    API Development
    Database Management System
    Product Development
    Review
    Code Review
    GitLab
    Docker
    CSS 3
    HTML5
  • $33 hourly
    • 5.0/5
    • (2 jobs)
    Software Engineer with more than 5 years of experience. Ability to work effectively both as a team member and individually. Excellent communication and interpersonal skills, well organized, goal-oriented.
    Featured Skill Git
    HTML
    SCSS
    Bootstrap
    Tailwind CSS
    Material UI
    REST API
    HTTPS
    JavaScript
    Contentful
    GraphQL
    Redux
    Next.js
    TypeScript
    React
  • $100 hourly
    • 5.0/5
    • (15 jobs)
    I am a professional web developer with 10+ years of experience in Ruby on Rails. My strengths experience in quickly find solutions to problems. And web development is not only work but also a hobby for me.
    Featured Skill Git
    PostgreSQL Programming
    RSpec
    Google Calendar API
    CSS
    Ruby on Rails
    JavaScript
    Ruby
  • $45 hourly
    • 4.9/5
    • (39 jobs)
    You’re building something that can change the world. I’m here to help you make it real. I don’t just offer programming skills—I focus on delivering outcomes that align with your business goals. Technology is a tool, not the goal itself. That’s why I always choose the simplest, most efficient solution that gets the job done without compromising long-term maintainability or scalability. Yes, I love exploring new technologies and pushing boundaries—but only when it makes sense for your project. Need a quick prototype? I can do that. Need a solid, scalable architecture? I’m on it. I adapt to your needs. My Core Strengths: - Designing flexible, maintainable, and scalable front-end architectures. - Building full-stack applications with modern frameworks and tools. - Creating AI-powered assistants, chatbots, and knowledge-based systems (RAG, embeddings, vector search). Front-End Expertise: - Languages & Tools: HTML, CSS (PostCSS, SCSS, LESS, CSS Modules, CSS-in-JS), JavaScript, TypeScript - Responsive Design: Mobile-first, touch-optimized UIs - CSS Frameworks: Tailwind CSS, Shadcn UI, Ant Design - Methodologies: BEM, Atomic CSS - React Ecosystem: React, Next.js (Server components, App/Pages router), Storybook, React-Apollo - Other Frameworks: Vue, Angular Mobile Development: Flutter and React Native – cross-platform apps built with performance and usability in mind Testing: Jest, Enzyme, React testing library Back-End & Full-Stack Development: Node.js, Express, GraphQL (Apollo, Nexus) ORMs & DBs: Prisma, Drizzle, Supabase, PostgreSQL Authentication: Clerk, Auth.js, Supabase Auth and custom auth implementations Serverless & Edge: Vercel, Cloud Functions, background jobs, cron tasks AI & LLM Integration: - Custom AI assistants and chatbots using: Vercel AI SDK, LangChain - Embedding models, vector search, Supabase Vector, pgvector - Retrieval-Augmented Generation (RAG) pipelines Team & Collaboration: I’ve worked on-site at established web studios, remotely as a freelance consultant, and as part of large distributed teams. I’ve also led front-end teams and directly managed projects from start to finish. --- Let’s build something meaningful together!
    Featured Skill Git
    Storybook
    Apollo.io
    Firebase
    Chatbot Development
    AI Agent Development
    LLM Prompt Engineering
    GraphQL
    Responsive Design
    Tailwind CSS
    CSS
    JavaScript
    HTML
    Supabase
    Node.js
    Next.js
    React
    TypeScript
  • $125 hourly
    • 5.0/5
    • (21 jobs)
    Software engineer with 10+ years of experience in development and devOps. Recent projects: * Fintech project (golang) * Custom connectors for Zapier, Workato, Terraform, Crossplane, Pulumi * Datasets management platform for Computer Vision projects (python) * IoT platform (golang) Skills: golang, python, devops, custom integrations
    Featured Skill Git
    Golang
    Docker
    RESTful API
    DevOps
    Terraform
    Application Release Automation
    API
    Python
    Scripting
    Zapier
    API Integration
    Automation
  • $35 hourly
    • 5.0/5
    • (9 jobs)
    I’m a Frontend Engineer with 7+ years of experience building high-performance and scalable web applications. My expertise lies in Vue.js, Nuxt.js, and TypeScript, and I’m actively expanding my skills in React.js and Next.js. ⚡ I specialize in building high-performance, scalable applications, optimizing frontend architecture, and creating reusable components that improve development efficiency and user experience. 💡 Passionate about crafting clean, maintainable, and user-centric solutions that drive measurable business impact. 📈 I have worked on high-impact platforms and internal tools, optimizing workflows, enhancing usability, and improving overall efficiency. I thrive in collaborative environments, enjoy tackling complex problems, and always seek innovative solutions in frontend development. My professional skills include: JavaScript, TypeScript | Vue.js, Nuxt.js, Vuex, Pinia, Vuetify | Jest, Cypress | Webpack, Vite | HTML, CSS | React.js, Next.js, Redux | Git
    Featured Skill Git
    CSS
    HTML
    Vuetify
    Jest
    Vuex
    JavaScript
    Nuxt.js
    Vue.js
  • $35 hourly
    • 5.0/5
    • (15 jobs)
    With over three years of experience leading Android development teams, I specialize in creating innovative mobile solutions that elevate user experiences. My expertise spans a wide range of skills, including Android development, technical documentation, product management, app deployment, and software architecture. I excel in team leadership, fostering collaboration and driving continuous improvement, while skillfully managing conflict resolution and ensuring smooth operations. Proficient in Java and Kotlin programming, version control systems, API integration, and database management, I bring technical depth to every project. From managing issue tracking systems to optimizing apps for social media platforms, I thrive on delivering high-quality results and pushing the boundaries of mobile technology to achieve exceptional outcomes. I am confident that my skills and experience align perfectly with your needs, and I am excited about the opportunity to contribute to your project. Thank you for considering my application. I look forward to the possibility of working together.
    Featured Skill Git
    RESTful Architecture
    JavaFX
    JSON
    Kotlin
    Java
    Android App Development
    In-App Advertising
    Smartphone
    Android SDK
    API Integration
    SQLite Programming
    Chat & Messaging Software
    Android
  • $40 hourly
    • 5.0/5
    • (88 jobs)
    Full Stack Developer with 10+ years of experience in Python, MERN, Laravel, MySQL, PostgreSQL. Recent review: ⭐️⭐️⭐️⭐️⭐️ "Can't thank/recommend Yury and the Exore LTD team enough for all their efforts from start to finish. They were extremely professional, knowledgeable and transparent for the entirety of the project" - a recent review. I’m a Full-stack developer with 10+ years of experience delivering high-performance Web Development and Mobile App Development solutions. As a Full Stack Developer React Laravel expert, I specialize in MERN Stack Developer, Python Full Stack Developer, and Full Stack MERN/PHP, ensuring scalable, intuitive apps for businesses of all sizes. 🔹 Mobile & Web Expertise As a full-stack web developer, I develop scalable apps as a MERN Stack Developer, Python Full Stack Developer, and Full Stack Laravel expert. From Laravel Developer and PHP Developer to Full Stack WordPress, I build secure platforms that handle 100K+ active users. Need a WordPress Developer? I ensure fast-loading, optimized sites with SEO-driven architecture. As a fullstack web developer and full stack developer php, I build scalable, secure applications using a variety of technologies, including PHP. 🔹 Backend & Frontend Mastery As a Backend Developer and Front End Developer, I create seamless Full Stack Developer React Node solutions, ensuring smooth API integrations and 40% faster load times. My Front End Developer React skills bring engaging UI/UX, improving user retention by 30%. 🔹 Cutting-Edge Technologies With experience as a Senior Full Stack Developer, Senior Web Developer, and Senior Python Developer, I build robust applications using JavaScript Full Stack, JavaScript React, and Vue Developer frameworks. As an HTML CSS Developer and Computer Graphics Developer, I create pixel-perfect, responsive designs that enhance user engagement. 🔹 Blockchain & Game Development As a full-stack software engineer, I also create secure, decentralized solutions. My work in Game Developer projects ensures immersive experiences with high performance. 🔹 Business & Strategy Beyond development, I work as a Business Strategist and Project Manager, helping startups and enterprises scale effectively. My Website Design and Web Designer expertise ensure conversion-focused interfaces that boost revenue. 🔹 Cross-Platform & Niche Development Need an iOS App Developer, React Native? I build custom solutions tailored to your industry. As a fullstack developer, I deliver scalable and efficient applications. As a senior full-stack developer, I add value by: - End-to-End Development: Crafting responsive web, mobile, and desktop apps using modern stacks like JavaScript, Python (Django), React, Node.js, PHP, Next.js, MERN, Laravel PHP, React.js, Fullstack, and PHP Laravel. Whether you need a full stack development solution or a full-stack web developer, I bring expertise in fullstack MERN, Python, PHP Laravel, and web development React. - Strategic Problem-Solving: Offering consultations and wireframes to refine your idea and optimize outcomes. As a senior full-stack developer, I ensure your product is built for scalability and success. - Legacy Modernization: Revamping outdated systems with cutting-edge tech for better efficiency. If you're looking for a full-stack software engineer to update legacy applications, I provide tailored solutions. - Automation & Integration: Streamlining workflows and connecting third-party tools like Salesforce, HubSpot, Zoho, Monday and etc.. With JavaScript fullstack expertise, I ensure seamless integrations. - Ongoing Support: Providing reliable post-launch maintenance to keep your app running smoothly. Our process starts with a detailed estimation call - clarifying your goals and delivering a clear roadmap to success using the discovery. What I Can Do as a Fullstack Web developer ✅ AI-Driven Solutions: Building intelligent applications with AI-powered automation and data security. ✅ Modernizing Legacy Systems: Using Laravel, PHP to enhance performance. ✅ Seamless API & CRM Integrations: Connecting systems with Salesforce, Zoho, and custom API solutions. ✅ End-to-End Product Development: From consultation and wireframes to post-launch support, including Website Design and Web Designer expertise. As a Top-Rated Plus expert, I'm serving industries such as education, finance, healthcare, real estate. Our toolkit spans JavaScript, Python, and Node.js for dynamic full stack developer, web developer, mobile app developer. Whether it's crafting high-performance applications as a React Developer, building scalable websites as a Full-Stack Developer, or integrating custom API development for seamless connectivity, I ensure efficient and innovative results. From CRM, AI Chatbots (Agents), ERP solutions to marketplaces and automated AI workflows, I've tackled it all. 💡 Let’s bring your vision to life with a scalable, high-impact solution! 🚀
    Featured Skill Git
    SQL
    Full-Stack Development
    Shopify
    API
    HTML
    Python
    PHP
    Web Application
    React
    API Integration
    WordPress
    Node.js
    Web Design
    JavaScript
  • $100 hourly
    • 5.0/5
    • (3 jobs)
    I'm a full stack javascript developer with over 15 years of experience. I can build entire website or web application from scratch. My experience: ✅ JavaScript / TypeScript: 12 years ✅ React.js / Next.js: 4 years ✅ Angular: 7 years ✅ Node.js: 7 years ✅ HTML & CSS: 15 years ✅ PostgreSQL / MySQL: 8 years ✅ WebSockets: 4 years ✅ WebRTC: 2 years
    Featured Skill Git
    Domain-Driven Design
    Socket.io
    Microservice
    Angular
    Redis
    JavaScript
    PostgreSQL
    HTML
    Node.js
  • $15 hourly
    • 5.0/5
    • (4 jobs)
    Experienced Front-End Developer skilled in creating cross-browser, semantic layouts adhering to W3C standards. Proficient in HTML5, CSS3, and jQuery, with a strong focus on delivering high-quality projects. Key skills: Expertise in HTML5, CSS3, and jQuery. Extensive knowledge of cross-browser compatibility for major browsers and platforms. Proficient in block fixed/fluid layout and adaptive layout techniques. Familiarity with Bootstrap 4.5, Flexbox, Grid, LESS/SCSS, Pug, Gulp, NPM, Git, and Webpack. Experience with parallax scrolling and integration of modern image formats. Ability to connect non-standard fonts using @font-face and Google Web Fonts. Proficient in creating and utilizing icon fonts. Hello! I'm Maksym, a Web Development professional with a strong focus on front-end development. I have expertise in converting PSD designs into fully functional websites. Additionally, I am well-versed in WordPress, Responsive Web Design, Cross Browser Development techniques, and testing. My ultimate goal is client satisfaction, and I always strive to deliver impeccable results. Let's work together to create outstanding web experiences!
    Featured Skill Git
    Figma
    jQuery UI
    Front-End Development
    Website Optimization
    Bootstrap
    SCSS
    Landing Page
    npm
    WordPress
    webpack
    gulp
    CSS
    HTML5
    JavaScript
  • $38 hourly
    • 5.0/5
    • (1 job)
    I am a full-stack Software Engineer with years of experience. Throughout my career I worked with many technologies and programming languages. I value clear communication within the team which I believe is essential to deliver results quickly. I enjoy building scalable and architecturally sound systems. The world of engineering is ever growing and continuous learning and experimentation is a part of it I enjoy.
    Featured Skill Git
    Golang
    GraphQL
    CI/CD
    React Native
    TypeScript
    Docker
    JavaScript
    HTML
    Elm
    CSS
    Amazon Web Services
  • $50 hourly
    • 0.0/5
    • (0 jobs)
    • Software Engineer with experience in different Industries. • Skilled in Java, Spring Boot, MySQL, PostgreSQL, Oracle Database, PL/SQL. • Worked successfully in both Scrum/Kanban/Waterfall teams. • Successful practical experience with applications with complex business requirements. • Solid background in Algorithms, Data Modeling and Debugging. • Hands-on experience with highly scalable systems, migration, and deployment.
    Featured Skill Git
    Oracle
    Hibernate
    GitHub
    Gradle
    Oracle Database
    RabbitMQ
    Spring Boot
    Jenkins
    Microservice
    JDBC
    Docker
    Jira
    Java
  • $25 hourly
    • 5.0/5
    • (2 jobs)
    After graduating from university, I studied the C / C++ programming language on my own, wrote simple applications. Then I decided to retrain as a software engineer, where I got acquainted with the C# language. After that worked with such technologies as WinForms, WPF, ASP .NET / ASP .NET MVC web technology. Worked with MS SQL database etc. Now I help users to set up their hosting, transfer website domain, pull layout on WordPress, make admin panel with user friendly interface in WordPress console
    Featured Skill Git
    PHP
    Entity Framework
    LINQ
    SQL
    ADO.NET
    ASP.NET MVC
    CSS
    HTML
    WooCommerce
    WordPress
    Microsoft Visual Studio
    Python
    Linux
    C#
  • $15 hourly
    • 5.0/5
    • (1 job)
    👋 Hello there! I'm your dedicated Front-End Developer with a passion for crafting seamless user experiences 🚀 💻 With a specialized focus on HTML, CSS, Next.js, and Tailwind CSS, I bring your designs to life, ensuring pixel-perfect layouts and user-friendly interfaces. My goal is not just to code but to understand and elevate your business objectives. I believe that effective communication and collaboration are key to delivering projects that align perfectly with your vision. 🛠️ Here's what I bring to the table: - HTML & CSS Expertise: Proficient in translating design concepts into clean, responsive code. - User-Centric Approach: I pay meticulous attention to your business goals, ensuring that the end product not only looks great but also serves its purpose effectively. - Collaborative Spirit: I value open communication and teamwork. Your feedback is not only welcomed but integral to the success of our project. - Next.js Proficiency: Experience in building dynamic and performant web applications using Next.js. - Vercel Deployment: Proficient in deploying applications on Vercel for seamless hosting and continuous integration. - Tailwind CSS Mastery: Skilled in utilizing Tailwind CSS for streamlined and efficient styling. 🌐 I believe that a friendly collaboration leads to the best results, and I'm excited about the prospect of working together to bring your digital vision to life. Let's make your online presence shine! Feel free to reach out, and let's discuss how we can achieve your goals together 🚀
    Featured Skill Git
    User Experience Design
    Web Design
    Web Development
    GitHub
    HTML5
    Web Application
    CSS
    HTML
    JavaScript
    Responsive Design
    React
    Front-End Development
  • $40 hourly
    • 0.0/5
    • (0 jobs)
    I'm a scientist in my heart. I love research and analytical job. With R&D Team in OptiBuy Ltd we are focused on automation and optimization of the procurement processes using wide range of AI/ ML techniques, e.g. NLP, recommender systems, deep learning, classification, etc. For several years of my work in academia I was a researcher, a team leader and a project manager. My research was focused on algorithms related to detection and localization of microearthquakes. Later, at Cosmose Inc., I analyzed Wi-Fi data (so called Wi-Fi fingerprints gathered by mobile phones) to optimize the algorithms for localization. Skills: team player, analytical thinking, Linux, programming (PYTHON, R, Matlab, C/C++), SQL, BASH scripting, Data Science, Machine Learning, Jira (Scrum/Kanban), GIT
    Featured Skill Git
    Artificial Intelligence
    Analytical Presentation
    Jira
    Scripting
    Bash
    Linux
    Data Analysis
    Information Analysis
    Deep Neural Network
    Python
    Machine Learning
    MATLAB
    C++
    Natural Language Processing
  • $20 hourly
    • 5.0/5
    • (2 jobs)
    Hi 👋 I am an iOS developer with about 3 years of experience. I've been involved in many aspects of creating and maintaining applications, such as analysis, implementation, user interface design patterns and principles, writing unit tests, code reviews and etc. Tech stack: iOS, tvOS; Swift; Xcode; Combine, RxSwift, GCD; MVC, MVVM, MVP, VIPER, CleanSwift; UIKit, SwiftUI; TinyConstraints, SnapKit; Realm, Firebase, CoreData; REST, GraphQL; Fastlane, TestFlight distribution; CocoaPods, SPM, Carthage; SwiftGen, SwiftLint, SwiftFormat; CI/CD; XCTest; Git.
    Featured Skill Git
    Jira
    TestFlight
    Fastlane
    XCTest
    REST API
    SwiftUI
    SpriteKit
    Apple Xcode
    tvOS
    Realm Database
    RxSwift
    UIKit
    Swift
    iOS
  • $40 hourly
    • 0.0/5
    • (0 jobs)
    Hello! I'm a dedicated and versatile Full Stack Developer with over 7 of hands-on experience building scalable, high-performance web applications using modern JavaScript and TypeScript frameworks. My expertise spans across React, Node.js, Express.js, and backend platforms like Supabase, Firebase, and Python-based frameworks like Flask and Django. I specialize in delivering full-cycle solutions — from designing responsive frontends to implementing secure backend services and deploying on serverless platforms like Vercel. Whether it's developing an MVP, integrating third-party APIs, optimizing performance, or architecting robust data layers, I bring a solution-oriented mindset to every project. 🔧 Technical Skills & Tools: Frontend: React.js, Vue.js, TypeScript, JavaScript (ES6+), Tailwind CSS, HTML5, CSS3, Responsive Design, Component-based architecture Backend: Node.js, Express.js, Python, Flask, Django, RESTful APIs, Authentication & Authorization (JWT, OAuth) Databases & Cloud: Supabase (Realtime DB, Auth, Edge Functions) Firebase (Firestore, Auth, Cloud Functions) PostgreSQL, MongoDB, MySQL DevOps & Deployment: Vercel, Netlify, Docker (basic), Git, GitHub Actions, CI/CD pipelines Project & Workflow Tools: Git, GitHub, Bitbucket, Jira, Trello, Agile/Scrum methodologies 💡 Why Work With Me? Proven ability to transform ideas into fully functional applications Strong focus on performance, security, and scalability Clean, maintainable, and well-documented code Clear communication and reliable delivery Flexible across time zones and responsive to client needs I’m passionate about delivering value through technology and building long-term professional relationships. Let’s collaborate to bring your project to life with modern full-stack solutions tailored to your vision. 📩 Feel free to reach out — I’m ready to help you succeed! React | Node.js | TypeScript | JavaScript | Supabase | Firebase | Vercel | Express.js | Flask | Django | Python | Vue.js | Tailwind CSS | REST API | PostgreSQL | MongoDB | MySQL | Web App | SaaS | Serverless | Frontend | Backend | Full Stack | JAMstack | JWT | OAuth | Git | GitHub | Bitbucket | CI/CD | GitHub Actions | Firebase Auth | Supabase Auth | CRUD | MVC | SSR | CSR | Next.js | Component Design | Hooks | Context API | API Integration | Realtime Database | Agile | Scrum | Jira | Trello | Responsive Design | UI/UX | SPA | PWA | HTML5 | CSS3 | ES6 | WebSockets | Docker | DevOps | Netlify | Cloud Functions | Serverless Functions | Authentication | Authorization | NoSQL | Relational DB | MVP Development | Prototype | Testing | Unit Testing | Integration Testing | Deployment | Vite | Webpack | Babel | Code Optimization | Performance Tuning | Debugging | Version Control | Custom Hooks | Redux | Zustand | Prisma | ORMs | API Security | API Design | Software Architecture | Technical SEO | Web Performance | Clean Code | Code Review | Modular Code | Cross-browser | Mobile First | Tailwind UI | Chakra UI | Headless UI | SaaS Development | Startup Apps | Admin Dashboards | Firebase Firestore | Form Handling | Validation | Zod | React Query | TanStack | SWR | Axios
    Featured Skill Git
    RESTful API
    Vue.js
    Django
    Flask
    Tailwind CSS
    Python
    Firebase
    Supabase
    TypeScript
    JavaScript
    ExpressJS
    Vercel
    Node.js
    React
  • $35 hourly
    • 0.0/5
    • (1 job)
    I’m a specialized Automation & System Analysis Engineer with expertise in both web platforms and Android applications, focusing on ticketing ecosystems such as Ticketmaster, UEFA, and top football clubs. My work helps companies and engineering teams test, validate, and improve the performance, scalability, and security of their applications — ethically and with full client authorization. I have a strong background in reverse engineering JavaScript and Android apps (APKs) for the purpose of understanding traffic behavior, improving system resilience, and supporting quality assurance in high-demand environments. What I Do: - Traffic simulation for QA, stress-testing, and infrastructure evaluation - Cross-platform session flow automation (web + Android) - Secure login/session handling testing - Queue system analysis and load simulation (e.g., Queue-it-style systems) - Captcha & anti-bot flow analysis for mitigation strategy development - Minified/obfuscated JavaScript and APK code analysis for research purposes - API behavior modeling and automated testing tools Tech Stacks: - Languages: Go, Python, JavaScript, Node.js, Java/Kotlin(Android) - Tools: Burp Suit, Frida, Playwright, Puppeteer, Selenium, APKTool, HttpTool - Infra: AWS, Dokcer, DigitalOcean, Git CI/CD - Proxy tools for distributed testing environments
    Featured Skill Git
    Reverse Engineering
    Docker
    AWS Lambda
    Puppeteer
    Selenium
    Kotlin
    Java
    Node.js
    JavaScript
    Python
    Golang
  • Want to browse more freelancers?
    Sign up

How hiring on Upwork works

1. Post a job

Tell us what you need. Provide as many details as possible, but don’t worry about getting it perfect.

2. Talent comes to you

Get qualified proposals within 24 hours, and meet the candidates you’re excited about. Hire as soon as you’re ready.

3. Collaborate easily

Use Upwork to chat or video call, share files, and track project progress right from the app.

4. Payment simplified

Receive invoices and make payments through Upwork. Only pay for work you authorize.

Trusted by

How do I hire a Git Developer near Warsaw, on Upwork?

You can hire a Git Developer near Warsaw, on Upwork in four simple steps:

  • Create a job post tailored to your Git Developer project scope. We’ll walk you through the process step by step.
  • Browse top Git Developer talent on Upwork and invite them to your project.
  • Once the proposals start flowing in, create a shortlist of top Git Developer profiles and interview.
  • Hire the right Git Developer for your project from Upwork, the world’s largest work marketplace.

At Upwork, we believe talent staffing should be easy.

How much does it cost to hire a Git Developer?

Rates charged by Git Developers on Upwork can vary with a number of factors including experience, location, and market conditions. See hourly rates for in-demand skills on Upwork.

Why hire a Git Developer near Warsaw, on Upwork?

As the world’s work marketplace, we connect highly-skilled freelance Git Developers and businesses and help them build trusted, long-term relationships so they can achieve more together. Let us help you build the dream Git Developer team you need to succeed.

Can I hire a Git Developer near Warsaw, within 24 hours on Upwork?

Depending on availability and the quality of your job post, it’s entirely possible to sign up for Upwork and receive Git Developer proposals within 24 hours of posting a job description.

Looking to hire for long-term or full-time assignments? See how Full-time hiring on Upwork simplifies the process.