Javascript Developers for hire in Poland
Showing 25 results
Sponsored Freelancers
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My Objective is to provide the best of my services at an economical cost. I am a FULL STACK Engineer, Team leader and Software Architect with 12 years of experience. I have worked on more than 80 web and mobile applications. In those 80 projects I played a role of Architect, Project Lead and Full stack developer. I...My Objective is to provide the best of my services at an economical cost. I am a FULL STACK Engineer, Team leader and Software Architect with 12 years of experience. I have worked on more than 80 web and mobile applications. In those 80 projects I played a role of Architect, Project Lead and Full stack developer. I am Top Rated Plus web developer on Upwork, and many other portals similar to Upwork. My Top Skills are: ⭐Senior Full Stack Engineer with 12 years of experiences → Front-end: JavaScript/TypeScript, React/Redux, Angular, Vue2/Vu3, Svelte → Back-end: Node.js / Laravle / .Net Web API / GoLang / GraphQL / Django / Flask → Database: PostgresSQL / MySQL / MongoDB / MSSQL → CI/CD: Docker / Jenkins / Bitbucket Pipeline / Team city → Style: Bootstrap / Tailwind CSS/ Material UI / Angular Material / CSS / SCSS → Package Manager: NPM / Bower / Yarn / Nuget Package → Version control: Git (GitHub / BitBucket / GitLab / Azure) / SVN / Mercury → Task Manager: Jira / Zendesk / Trello / Pivotal Tracker / Vivify ⭐Stealth Web Scrapping using AdsPower API → Pythoon, Selenium, puppeteer, Scrapy, BeautifulSoup → Adspower API ⭐Trading Development → Tradingview in Pine Script → THinkorswim by Thinkscript → Metatrader 4 and 5 in MQL 4 and MQL 5 → Ninjatrader7/8 by Ninjascript less
Hire rradoo
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I'm in love to creating useful apps and tools for my clients. It is the reason why i do it with high quality and attention to detail. And of course I have 5 years expirience as a developer and 3 years as a .NET developer. I have expirience in many technologies, but .NET is my favourite. My programming expirience...I'm in love to creating useful apps and tools for my clients. It is the reason why i do it with high quality and attention to detail. And of course I have 5 years expirience as a developer and 3 years as a .NET developer. I have expirience in many technologies, but .NET is my favourite. My programming expirience started from 2014 and after that i tried a lot of languages, technologies like old Pawn to modern C#. I even have expirience in gamedev as a gameplay developer on C#. I love my work, but what I love most is making people enjoy the apps and useful tools I make for them. AND I HAVE 2 YEARS EXPERIENCE IN RAGEMP DEVELOPMENT (MULTIPLAYER MOD FOR GTA 5) less
Hire AnnihilatorINC
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We develop web applications with different technologies, approaches, and frameworks since 2018 on the territory of Poland. Head of the company has been a programmer since 2000. Backends: 1) java 8/11/17, RxJava, ORM, JPA/Hibernate, Guice, Spring Boot, Lombok, REST, Event Bus, JUnit, Kafka, Design Patterns, SOLID,...We develop web applications with different technologies, approaches, and frameworks since 2018 on the territory of Poland. Head of the company has been a programmer since 2000. Backends: 1) java 8/11/17, RxJava, ORM, JPA/Hibernate, Guice, Spring Boot, Lombok, REST, Event Bus, JUnit, Kafka, Design Patterns, SOLID, Nifi/Mule, XSLT, much more; 2) nodejs, express, typescript, nest, Mongoose, Redis, RabbitMQ; 3) docker, Kubernetes (k8s), Jenkins, github actions, Terraform, AWS/Azure/GCP; 4) REST, websockets, SSE, SOAP, sockets. 5) VertX, Tomcat, Glassfish, JBOSS/WildFly, Jetty, nginx; 6) any RDBMS, MongoDB, CouchBase, DynamoDB; 7) bash, ssh, git Frontend: Angular, React, Redux, Vue, jQuery, HTML, CSS, Swing, Java Applets, Ember, Bootstrap, ExtJS, Cordova, Ionic. Goals: - projects into my company; - $33/h net. Conditions: we are small company and our developers work in convenient offices in city of Chelm, Poland, we also support relocation to Poland less
Hire mercuriev
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My major skills are: - C# - C++ - Java - JavaScript - Unity 3D / 2D - Adobe Air (Actionscript 1, 2, 3) - Mono Game XNA - HaxeFlixel - Desktop Windows and Android Apps and Games **!! IMPORTANT INFO !!** Paul L. @paul612 who left last comment is a scammer. He wanted me to test his .apks but he couldn't even build...My major skills are: - C# - C++ - Java - JavaScript - Unity 3D / 2D - Adobe Air (Actionscript 1, 2, 3) - Mono Game XNA - HaxeFlixel - Desktop Windows and Android Apps and Games **!! IMPORTANT INFO !!** Paul L. @paul612 who left last comment is a scammer. He wanted me to test his .apks but he couldn't even build them properly and they didn't boot up at all! And then he wanted me to develop for him for free. Don't be like @paul612, be honest and I will be honest **** I have done a lot of projects connected with virtual reality, Oculus Rift, Oculus Quest / GO and HTC Vive (I developed unique calibrating system for making free roaming VR Arena). Also I have a some knowledge about design, drawing, 3D modeling, and sound engineering because for some years I have been making games utterly alone. I am not afraid of any kind of challenge. === If you do not speak English we can try to communicate via translators I am sure that we will manage to do it :) less
Hire nyxhrim
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My freelancing services include: - creating spreadsheets - google sheets, excel incl. VBA, etc. - C# coding, especially windows desktop apps - SQL, especially T-SQL and MySQL - PHP, especially WordPress plugins - ... and more :) I have ca 20 years of experience of work in various projects - as ERP, CRM, finance...My freelancing services include: - creating spreadsheets - google sheets, excel incl. VBA, etc. - C# coding, especially windows desktop apps - SQL, especially T-SQL and MySQL - PHP, especially WordPress plugins - ... and more :) I have ca 20 years of experience of work in various projects - as ERP, CRM, finance related ones. I believe that my strong side is asking the right questions so that I can properly understand what the customer needs. less
Hire FreelancerKuba
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✅ 15+ years of experience ✅ 70+ projects delivered ✅ 10k+ Hours ✅ 100% Success Score ✅ 5 Stars ✅ Backed by a skilled team for handling complex projects Doubtful about finding a 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,...✅ 15+ years of experience ✅ 70+ projects delivered ✅ 10k+ Hours ✅ 100% Success Score ✅ 5 Stars ✅ Backed by a skilled team for handling complex projects Doubtful about finding a 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. 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 over70 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. ---=== 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 Visualization 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. less
Hire rostcompany
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Under skills are my • Programming Languages: HTML5, CSS3, Bootstrap 5, JavaScript C++ C#,java,python, • Frameworks: React.js, Next.js,Vue.js • CSS Framework: Tailwind CSS, MaterialUI , Masterial Style,Metronic, • Tools: ChartJS, ApexCharts, ReduxToolkit,Unity,Unreal,Cocos,Qt,Visual Studio, • CMS: WordPress,...Under skills are my • Programming Languages: HTML5, CSS3, Bootstrap 5, JavaScript C++ C#,java,python, • Frameworks: React.js, Next.js,Vue.js • CSS Framework: Tailwind CSS, MaterialUI , Masterial Style,Metronic, • Tools: ChartJS, ApexCharts, ReduxToolkit,Unity,Unreal,Cocos,Qt,Visual Studio, • CMS: WordPress, Shopify, Webflow,Magento, • Database: Firebase, MongoDB,MySQL,Oracle,SQLite, less
Hire andrzej5
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❤️Hello Sir/Madam! ❤️Thank you for your reading my profile❤️ I am a Full Stack Web Developer and I am here to make your idea to Product. I worked 5+ Years on my previous company and now I am going to start my life as a freelancer. I hope many cares from you and I will do my best for your project. My Web Skills Are...❤️Hello Sir/Madam! ❤️Thank you for your reading my profile❤️ I am a Full Stack Web Developer and I am here to make your idea to Product. I worked 5+ Years on my previous company and now I am going to start my life as a freelancer. I hope many cares from you and I will do my best for your project. My Web Skills Are Like Below. ✔️Requirements Analysis with XMind. ✔️Drawing Sketch of the Website and Wireframe Design using Figma or Adobe XD ✔️Colorful and Pixel Perfect Graphic Design With Figma or Adobe XD ✔️Figma to HTML, CSS Design or to React ✔️Front End Development with JQuery or React, Nextjs. ✔️Back End Development with Express, Laravel, Flask, Django ✔️Database Structure and Query Development with MySQL, PostgreSQL or MongoDB. ✔️Deployment with CPanel and AWS. My AI Skills are like below ✔️ChatGPT Prompt Engineering. ✔️Object Detection and Recognition with Traditional OpenCV or Modern ML/DL Methods. ✔️Natural Language Processing. ✔️Integrate AI Function to Web Application. I like challenge of and I am ready for your any type of testing project. Working on testing project without any payment is my working method to get award from client Thank you again for your reading and I am looking forward to hearing from you. less
Hire maksim71
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As a Senior Web and Mobile Developer with 5 years of hands-on experience, I am dedicated to crafting exceptional digital solutions that seamlessly blend cutting-edge technology with user-centric design. My passion for innovation drives me to stay at the forefront of industry trends and consistently deliver top-notch...As a Senior Web and Mobile Developer with 5 years of hands-on experience, I am dedicated to crafting exceptional digital solutions that seamlessly blend cutting-edge technology with user-centric design. My passion for innovation drives me to stay at the forefront of industry trends and consistently deliver top-notch results. My expertise spans the entire development lifecycle, from conceptualizing ideas and architecting robust systems to writing clean, efficient code and optimizing performance. I have a proven track record of collaborating with cross-functional teams, translating complex business requirements into elegant technical solutions, and meeting project milestones on time and within budget. I take pride in my problem-solving skills and adaptability, which have allowed me to tackle challenging projects and find innovative solutions. Whether it's building feature-rich web applications, creating intuitive mobile apps, or improving existing systems, I am committed to delivering excellence in every endeavor. Let's connect and discuss how I can contribute to your next digital venture and help transform your vision into a reality. less
Hire russel50
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-I am a Full Stack Developer. (Senior Developer) I am confident that you will be completely satisfied with the quality, timeliness, and professionalism of my work. I offer comprehensive expertise in: • Programming Languages: HTML5, CSS3, Bootstrap 5, JavaScript C++ C#,java,python, • Frameworks: React.js,...-I am a Full Stack Developer. (Senior Developer) I am confident that you will be completely satisfied with the quality, timeliness, and professionalism of my work. I offer comprehensive expertise in: • Programming Languages: HTML5, CSS3, Bootstrap 5, JavaScript C++ C#,java,python, • Frameworks: React.js, Next.js,Vue.js • CSS Framework: Tailwind CSS, MaterialUI , Masterial Style,Metronic, • Tools: ChartJS, ApexCharts, ReduxToolkit,Unity,Unreal,Cocos,Qt,Visual Studio, • CMS: WordPress, Shopify, Webflow,Magento, • Database: Firebase, MongoDB,MySQL,Oracle,SQLite, - more than 10 years experience in Development on IT jobs. - like to work on the team. I beat deadlines and leave our clients completely satisfied. less
Hire rumio34