Freelancers for hire in Poland
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Sponsored Freelancers
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I'm extremely experienced in Web & Mobile application development especially, with 5+ years of experience. I got an excellent reputation for resolving problems and improving users' satisfaction. I have extensive knowledge of web frontend, backend, mobile app programming, I find myself suitable for full-time position...I'm extremely experienced in Web & Mobile application development especially, with 5+ years of experience. I got an excellent reputation for resolving problems and improving users' satisfaction. I have extensive knowledge of web frontend, backend, mobile app programming, I find myself suitable for full-time position that offers professional challenges that require interpersonal skills, excellent time management and problem solving skills. - Web development ✔ MERN Stack ✔ Angular 9, ReactJS ✔ NodeJS, Express, sailsjs, loopback ✔ SQL(MySQL, PostgreSQL), NoSQL(MongoDB, CouchDB) ✔ HTML5, CSS3, Sass/Less, Bootstrap ✔ Javascript(ES5/ES6+, Babel), jQuery, DHTMLX, Typescript, D3.js, Socket.IO, Three.js ✔ Test: Jest, Jasmine, Mocha, Karma, Chai ✔ UI/UX, responsive web ✔ Firebase, AWS, GCP ✔ Stripe, Paypal, Yodleeany timezone and available 24*7 on any platform. - Mobile app development ✔ iOS, Android ✔ Swift, Objective-c, Kotlin, Java, React Native, Flutter less
Hire Andrii2224
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I am a professional coder (B.Sc degree in computer programming) and, in the past, a successful Forex trader. I have over 7 years experience in MetaTrader4 advisor development, all kinds of MQL programming, Visual c++, c#, database and software design. I'll be happy to help you out with your project using my skills and...I am a professional coder (B.Sc degree in computer programming) and, in the past, a successful Forex trader. I have over 7 years experience in MetaTrader4 advisor development, all kinds of MQL programming, Visual c++, c#, database and software design. I'll be happy to help you out with your project using my skills and extensive knowledge. I offer unlimited revisions until my client is fully satisfied. less
Hire pitpiter
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I am professional developer with over 14 years of experience in web scraping. I have been doing business on (Ukraine freelance website) where I am one of the top developers, and I have very extensive experience in PHP, web scraping, import/export in databases of all CMS. More than 1500 projects, 700+ reviews, 15...I am professional developer with over 14 years of experience in web scraping. I have been doing business on (Ukraine freelance website) where I am one of the top developers, and I have very extensive experience in PHP, web scraping, import/export in databases of all CMS. More than 1500 projects, 700+ reviews, 15 years expiriense. Typical jobs: 1. Supplier product catalog synchronization: Automatic launch (Cron) Adding new products Updating availability and prices Markup (percentage, formula, depending on category/brand/price range) API, XML, WSDL, Json, parsing any websites Import to Shopify, Wordpress+Woocomerce, Opencart, Prestashop, Bitrix, Webasyst, Joomla+Virtuemart/Joomshopping, Drupal, Magento, Netcat, CS Cart, DLE, ModX, Vamshop and other CMS Possible export to CSV, XLS, XLSX, API, XML, SQL. HTML log with display of all actions of the last script launch If you have suppliers who provide information in any structured format and you need to synchronize your product catalog with your website, automatically update prices and product availability. 2. Export of your products to marketplaces: Ebay, Amazon, Wildberries, YandexMarket CSV, XLS, XLSX, API, XML If you sell your products on third-party websites and you need automatic synchronization of availability and prices. 3. Parsing bookmakers' websites with email/telegram notifications 1xbet, 1xstavka, marathonet, fonbet, betcity, betfair, betsapi, pinnacle Line, live, line closure, new events in the line 4. Collection and processing of any type of information through the internet with saving in any structured format. 5. Monitoring of data (prices, announcements, available slots, updates/new information) with instant notification. For more detailed information, please see the portfolio. less
Hire hiberokpars
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I am an experienced front-end and back-end developer. Advanced mechanisms development is my passion, i love to take on difficult challenges, and i carry out every implementation so as to be 100% proud of it.I am an experienced front-end and back-end developer. Advanced mechanisms development is my passion, i love to take on difficult challenges, and i carry out every implementation so as to be 100% proud of it. less
Hire krzysztofpacz
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Hello, I am a highly skilled and experienced Web | Mobile | AI developer with a passion for creating innovative and cutting-edge solutions. With a strong background in software development, I specialize in building robust and scalable web and mobile applications, as well as leveraging artificial intelligence...Hello, I am a highly skilled and experienced Web | Mobile | AI developer with a passion for creating innovative and cutting-edge solutions. With a strong background in software development, I specialize in building robust and scalable web and mobile applications, as well as leveraging artificial intelligence technologies to enhance user experiences. I have [15] years of professional experience in the industry, and throughout my career, I have successfully delivered a wide range of projects across various domains. From e-commerce platforms and social networking apps to intelligent chatbots and machine learning algorithms, I have a solid track record of creating high-quality software solutions. I am proficient in a diverse set of programming languages and frameworks, including but not limited to JavaScript, Python, React, Angular, Node.js, Swift, and Kotlin. This expertise allows me to adapt to different project requirements and deliver efficient and reliable solutions. I have a deep understanding of web and mobile development best practices, including responsive design, cross-platform compatibility, and performance optimization. I am well-versed in working with modern development methodologies such as Agile and Scrum, ensuring efficient project management and timely delivery. My expertise extends to the field of artificial intelligence, where I leverage technologies such as machine learning, natural language processing, and computer vision to create intelligent and personalized experiences for users. Whether it's implementing recommendation systems, sentiment analysis, or image recognition, I am proficient in utilizing AI technologies to drive innovation. I am committed to staying up-to-date with the latest trends and advancements in the industry. I regularly attend conferences, participate in online courses, and engage in continuous learning to enhance my skills and knowledge. As a professional, I am a strong communicator and collaborator, able to understand and translate complex technical concepts into clear and concise language. I work seamlessly with cross-functional teams, including designers, product managers, and stakeholders, to ensure effective collaboration and the successful delivery of projects. I am dedicated to delivering high-quality solutions that meet client requirements and exceed expectations. I take pride in my attention to detail, code quality, and adherence to industry standards and best practices. Overall, my extensive experience, technical expertise, and passion for innovation make me a valuable asset for any project in the Web | Mobile | AI domain. Thank you for considering my profile, and I look forward to discussing your project in more detail. less
Hire christiandev394
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I am a highly competent php developer with a proven track record in designing websites, developing apps and managing databases(problem solving also). I have strong technical skills as well as problem solving skills, enabling me to logically solve a problem in software and a hardwares. I am eager to try a new path in...I am a highly competent php developer with a proven track record in designing websites, developing apps and managing databases(problem solving also). I have strong technical skills as well as problem solving skills, enabling me to logically solve a problem in software and a hardwares. I am eager to try a new path in order to grow and further improve my php skills. My greatest passion in life is using my technical know-how to helping other people or organisations and solve problems. less
Hire Baxiol
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I am a team player and a self-starter, and I am always willing to help clients achieve their goals. I am excited to have the opportunity to collaborate with clients on freelancer.com and use my skills and experience to help them with their projects.I am a team player and a self-starter, and I am always willing to help clients achieve their goals. I am excited to have the opportunity to collaborate with clients on freelancer.com and use my skills and experience to help them with their projects. less
Hire andnieo
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As a Web developers I have 6 + years of experiences in design and create websites and web applications using programming languages such as HTML, CSS, and JavaScript,PHP and so on. Also I implemented user's requirement including user interface designs, ensure functionality, and optimize performance . According to the...As a Web developers I have 6 + years of experiences in design and create websites and web applications using programming languages such as HTML, CSS, and JavaScript,PHP and so on. Also I implemented user's requirement including user interface designs, ensure functionality, and optimize performance . According to the necessities , I have updated their skills to adapt to evolving technologies and industry trends, providing innovative solutions for online platforms. less
Hire robinson070
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Professional Java development for 10+ years. Expert level in Core Java, deep understanding of both «Java Concurrency in Practice» and Java Memory Model. Solid knowledge of algorithms and data structures with their complexity. Large experience of memory and performance profiling. Basics of Scala. Knowledge and...Professional Java development for 10+ years. Expert level in Core Java, deep understanding of both «Java Concurrency in Practice» and Java Memory Model. Solid knowledge of algorithms and data structures with their complexity. Large experience of memory and performance profiling. Basics of Scala. Knowledge and experience with BigData ecosystem (Spark, Hadoop). Multidimensional OLAP, ActivePivot. Ability to write nice, clean, extensible, robust code. UML, solid understanding and ability to apply OOP design patterns. Sense of quality, large experience in testing (unit, integration tests, code coverage and performance profiling). Experience with containers (Docker, K8s). Good knowledge of Linux, fluent Bash scripting. Cloud technologies (AWS, Azure). Experience of successful technical leadership in small teams. Practical knowledge of agile processes. Open and clear communication. Ability to observe and decompose tasks, formulate the completion criteria, estimate real duration, track the progress. Ability to write nice and clear documentation, to present the results. Vision of customer's demand, good usability expertise. less
Hire Ivan0512
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Hello I am a senior full-stack developer. Over 5 years, I have built many different websites and management systems for small companies and large businesses. Chat bot -Developed chat bot using botpress. -Developed chat bot using python and LLM. Ecommerce site - Developed ecommerce site with prestashop, woocommerce,...Hello I am a senior full-stack developer. Over 5 years, I have built many different websites and management systems for small companies and large businesses. Chat bot -Developed chat bot using botpress. -Developed chat bot using python and LLM. Ecommerce site - Developed ecommerce site with prestashop, woocommerce, magento and shopify. - Migrated old version to latest version. - Developed and customized modules, plugins and apps. React.js - Developed the Front-End and User Interface of applications using React, Redux, React hook and Material UI. - Involved writing modules using React as a view engine to build component-based application. - Created reusable React components and managed application state with Redux. - Applied redux middleware using redux-promise, redux-thunk and redux-saga. HTML and CSS - Experience working with Responsive Web Design. - Expert in creating Templates, Mockups and Prototypes, Web Interfaces, Layouts, and Flow of Future Pages. - High level of expertise in CSS pixel-level layout, Consistency with browsers, Version and Platform Independence. Django - Using Django Framework model, implemented MVC architecture and developed web applications with superb interface. - Experience in writing application level code to interact with APIs, Web Services using JSON. - Designed and developed a horizontally scalable APIs using Django Python - Data scraping - AI model PHP framework - Developed Ecommerce sites with laravel and codeignter. - Developed PHP based server side API using Laravel and Codeigniter framework and implemented MVC architecture. CRM - Custom module development - Customizing existing CRM code to match with requirements - Third-party API integrations like QuickBooks, Payment Gateways, Xero, Google Drive, and SMS gateway - Data migration from any CRM to SuiteCRM/SugarCRM/SalesForce - Upgrade from any version to latest version Blockchain - Cryptocurrency & Altcoin creation - Token creation on ETH, BSC, MATIC, and other EVM chains - NFT creation on Ethereum, Polygon, Solana, and other chains - Decentralized exchanges (Pancakeswap, Uniswap, etc) - Yield farms - Token staking dashboards - Token rewards tracking dashboards - Cryptocurrency node & masternode installation - Cryptocurrency mining pool installation - Cryptocurrency - Blockchain consulting Excel/Google sheet - Developed add-on for google sheet. - Developed custom engine for google sheet and Excel. - Migrate data to Google sheet and Excel. less
Hire DanielRu0301
