Freelancers for hire in Poland - Page 2
Showing 19 results
Sponsored Freelancers
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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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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 Software Engineer with 8 years of software development expertise. Created a highly impactful product, driving user growth and boosting client profits. Skilled in remote teamwork, Agile methodologies (Scrum), and effective communication. Delivers high-quality work on time with meticulous attention to detail....I am Software Engineer with 8 years of software development expertise. Created a highly impactful product, driving user growth and boosting client profits. Skilled in remote teamwork, Agile methodologies (Scrum), and effective communication. Delivers high-quality work on time with meticulous attention to detail. Focused on enhancing user experience. Adaptable and flexible, prioritizing client satisfaction through revisions. Core technical skills: - JavaScript, TypeScript, React, Next.js, React Native, Vue.js, Angular, Node.js, Express.js - Python, Django, Flask - PHP, Laravel, Symfony, WordPress - Git, Docker, Kubernetes, Jenkins - Google Cloud Platform, Amazon Web Services - TradingView, AI, ML, OpenAI, Bot less
Hire Yuriisay
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hello. I am interesting in simplifying things, specially business processes. My area of expertise is business and IT projects, getting things done is a challenge for me.hello. I am interesting in simplifying things, specially business processes. My area of expertise is business and IT projects, getting things done is a challenge for me. less
Hire ekodervw
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I specialize in creating mobile-responsive emails, and templates that are Dark Mode ready for various platforms such as MailChimp, Salesforce, HubSpot, Campaign Monitor, Constant Contact, SendGrid, iContact, Pardot, Klaviyo, and many others. In September 2015, I was acknowledged by MailChimp for discovering bugs in...I specialize in creating mobile-responsive emails, and templates that are Dark Mode ready for various platforms such as MailChimp, Salesforce, HubSpot, Campaign Monitor, Constant Contact, SendGrid, iContact, Pardot, Klaviyo, and many others. In September 2015, I was acknowledged by MailChimp for discovering bugs in their new 2015 templates, which helped the company rectify these issues. I am a certified MailChimp Partner Program member, and MailChimp incorporates my HTML/CSS code that correctly renders in Outlook for client emails. My Upwork stats: ★ Over 1,700 highly satisfied clients ★ Total earned: Over $600,000 ★ Total jobs: 4,000 ★ Total hours worked: 14,000 ★ Member of 31 Upwork Talent Cloud Groups (Microsoft, J&J, Unilever, Netflix, etc.). ★ 14+ years of experience in designing and coding email templates. CERTIFICATES: ★ HubSpot Marketing Software Certification (Provider: Hubspot) ★ Hubspot Contextual Marketing Certification (Provider: Hubspot) ★ Hubspot Email Marketing Certification (Provider: Hubspot) ★ Python Certified (Provider: Alison) ★ Mailchimp Certified (Provider: Mailchimp) ★ "Salesforce for Admins" Certificate (Provider: Linkedin) ★ "Managing DNS Essential Training" Certificate (Provider: Linkedin) ★ "Advanced CSS Media Queries" Certificate (Provider: Linkedin) ★ Google Ads - Measurement Certification (Provider: Google) My biggest CLIENTS: ★ Microsoft, Unilever, Netflix, Toyota, Hyundai, Adobe, BBC, LG, Renault, Fuji, Facebook, Instagram, 3M, Sony, Coca-Cola, Dulux, GLS, Amazon Prime Video, Bayer, Meta. My major SERVICES include: ★ DESIGN & CODE custom email templates, campaigns, automations ★ Programming modules for HubSpot (HubL), Salesforce (AMP Script), Marketo ★ Email deliverability (Setup DKIM / SPF / DMARC) ★ Litmus tests My English is fluent. I lived and worked for three years in Ireland (Roscommon). SKILLS: Expert Level: HTML5, CSS, Photoshop, Figma, Illustrator, inDesign, AMPscript Average level of knowledge: Python, JavaScript less
Hire european74
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Office equipment service engineer with 15 years of experience. Programming enthusiast. Currently, I am focused on Java and Spring. In my free time, I am training in JS and Angular.Office equipment service engineer with 15 years of experience. Programming enthusiast. Currently, I am focused on Java and Spring. In my free time, I am training in JS and Angular. less
Hire karoltylenda
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As a seasoned software developer, I specialize in crafting innovative solutions across multiple platforms and programming languages. My expertise spans from building dynamic websites and scalable enterprise applications to developing efficient software using a variety of tools and languages. Web Development: I excel...As a seasoned software developer, I specialize in crafting innovative solutions across multiple platforms and programming languages. My expertise spans from building dynamic websites and scalable enterprise applications to developing efficient software using a variety of tools and languages. Web Development: I excel in creating responsive and visually appealing websites. I am proficient in HTML5, CSS3, and JavaScript, along with frameworks such as React.js and Angular. My experience with backend technologies includes Node.js and PHP. I have also worked extensively with CMS platforms like WordPress and Drupal, ensuring content-driven sites are both user-friendly and functional. Java Development: With over seven years of experience in Java development, I have built numerous robust server-side applications. I am skilled in using Spring Boot for creating microservices and have a deep understanding of Java EE for enterprise applications. My projects often utilize relational databases such as MySQL and PostgreSQL, and I am also proficient in integrating NoSQL databases like MongoDB for high scalability and performance. Python Development: Python is another cornerstone of my programming skill set. I have developed various applications using Python, from web applications using Django and Flask to data-driven systems utilizing Pandas and NumPy. My work frequently involves automation scripts, data analysis, and machine learning projects, where I leverage libraries such as TensorFlow and Scikit-learn. Programming Languages: Ruby: Experienced in Ruby on Rails, I have developed several high-traffic web applications that require complex database interactions and advanced performance optimizations. C++: I use C++ for developing high-performance software applications, particularly those that require real-time processing and systems programming. C#: My C# skills are primarily applied in developing Windows applications and game development using Unity. Kotlin: I have used Kotlin extensively for Android app development, appreciating its seamless interoperability with Java and its safety features. Swift: Developing iOS applications with Swift has allowed me to create intuitive, user-friendly mobile apps with a focus on performance and security. Databases and Cloud Technologies: Databases: Proficient in SQL-based databases (MySQL, PostgreSQL), and I have significant experience with NoSQL technologies (MongoDB, Cassandra). Azure: I utilize Microsoft Azure for deploying and managing cloud services, employing Azure SQL Database, Azure Functions, and Azure Active Directory among other services for comprehensive cloud solutions. Libraries and Frameworks: I am a master in implementing complex functionalities using popular libraries and frameworks across different languages. I am dedicated to continuous learning and staying current with industry trends and technologies. My approach to software development focuses on efficiency, scalability, and maintainability. less
Hire hardsuit
