Hire the Best UML Developers
in Ukraine

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Andrew K.

Zaporozhye, Ukraine

$50/hr
5.0
54 jobs

I'm a PHP and Python developer with 6+ years of experience. My passion is back-end programming. I like coding the software logic making all the 'magic' behind the curtains. Here is my shortlist of skills and experience. Python: - building chat-bost (Telegram, Discord, social networks) - making different web-scrapers - web-development and interacting directly with MySQL - building different analytics and working with cryptocurrency APIs PHP: - a full-stack web developer with 6+ years of CodeIgniter/WordPress/Opencart experience. - developed several websites and web applications (most of them are written from scratch, and others are based on such engines as Joomla and WordPress) - building WordPress themes and plugins - working with XenForo and developing plugins for the engine I always speak with the client during working on the project to get a clear understanding of his/her needs. My #1 goal will always be to meet your needs and deadline. Just let me know what you want and I'll help you bring your ideas to life. I'd like to find jobs that will allow me to grow as a professional. I want to build and architect applications, make sites on different frameworks and technologies, not only well-known CMSs like WordPress or Opencart (but I like and know them pretty well). Thank you in advance for your time and consideration. I look forward to working with you soon. My experience and skills full list - PHP 5.4/5.5/7 (+CodeIgniter, Symfony) - Python(2.7/3.6) (+Peewee, BeautifulSoup, Scrapy, Requests) - MySQL - Twitter bootstrap - Javascript/jQuery - Frameworks: CodeIgniter, Yii2 - CSS - UML - WordPress - Opencart - Joomla - XenForo - Web Scraping - Chatbots and integrating with social networks APIs - Integrating with cryptocurrency and e-money gateways

  • Automation
  • XenForo
  • Shopify
  • Autoit
  • Bot Development
  • PSD to HTML
  • Laravel
  • API Integration
  • Vue.js
  • JavaScript
  • SQL
  • PHP
  • Python
  • WordPress
  • React
  • Node.js
  • Web Scraping
  • Data Mining
  • Due Diligence
Oleksandr S.

Kharkiv, Ukraine

$35/hr
4.7
164 jobs

My time is valuable, so you can expect short-term results when you choose me. I prefer to use developed components and solutions and determine the optimal solution for each client. I can handle all tasks, from front-end to Windows administration and backend development. ✔️ 9 times Umbraco MVP ✔️ Umbraco Certified ✔️ A super active member of the Umbraco Community ✔️ Contributor to Umbraco Core ✔️ Umbraco 10, Umbraco 9, Umbraco 8, Umbraco 7, Umbraco 4 Expert ✔️ Umbraco Cloud Expert ✔️ Umbraco Headless(Heartcore) Expert ✔️ Vendr specialist ✔️ C#, .NET, .NET Core, MVC, Web Forms, SQL, Web Services, Web APIs, Razor, Blazor, .NET Aspire ✔️ Wide experience in Angular JS, VueJS, jQuery, HTML5, CSS3 ✔️ AI-driven applications ✔️ Azure Machine Learning ✔️ Cognitive Services Skilled in integrating artificial intelligence solutions into websites and business operations, leveraging Azure's robust cloud services. Experienced in developing AI-driven applications that enhance user experience and streamline processes. Proficient in utilizing Azure Machine Learning, Cognitive Services, and other AI tools to create scalable and efficient solutions tailored to meet business needs.

  • AngularJS
  • C#
  • ASP.NET MVC
  • Azure DevOps
  • Umbraco Cloud
  • Episerver
  • Umbraco
  • Microsoft SQL Server Programming
  • Kentico
  • Sitecore
  • SEO Audit
  • Google Tag Manager
  • .NET Core
  • CSS
  • .NET Stack
Andrii T.

Lviv, Ukraine

$20/hr
5.0
32 jobs

📩 Available to start 𝗔𝗦𝗔𝗣 I am a results-driven QA Tester and experienced QA Engineer specializing in structured QA Manual processes and end-to-end Software QA Testing for web and cloud platforms. As a dedicated Web Tester, I deliver stable releases, reduce defects, and improve SDLC standards. I have worked as a qa tester, manual tester, and Manual QA tester, combining strong qa engineering discipline with practical qa testing and scalable qa software quality control. Over 5+ years and 50+ projects, I have performed full-cycle software testing — from requirements analysis to release approval. As both qa engineer and tester, I design structured qa manual testing frameworks and expand software qa testing coverage while maintaining precision as a web tester and website tester. I collaborate with full stack developer, project manager, and cross-functional teams to ensure reliable qa testing delivery. My expertise includes SaaS, ERP, CRM, and healthcare systems, including compliance-related environments and region-specific regulations projects. I have contributed to platforms requiring salesforce qa, ux qa, and enterprise-grade website testing validation. 🏆 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀 & 𝗣𝗿𝗼𝗳𝗲𝘀𝘀𝗶𝗼𝗻𝗮𝗹 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 •Edchart Certified Usability Testing Subject Matter Expert: Enhanced usability-driven software qa testing, advanced qa manual validation, and structured test analysis. As a qa engineer and qa tester, I apply risk-based qa testing and improve release confidence as a web tester. •Edchart Certified Manual Testing Subject Matter Expert Advanced specialization in qa manual, qa manual tester practices, and structured regression planning. Strengthened my role as software qa engineer manual specialist and delivery-focused qa tester ensuring scalable software qa testing cycles. •PMI – Agile & Predictive Project Management Improved collaboration with project manager teams, aligning sprint-based software testing with structured qa manual testing and long-term qa engineering governance. 𝗧𝗢𝗢𝗟𝗦 & 𝗧𝗘𝗖𝗛𝗡𝗢𝗟𝗢𝗚𝗜𝗘𝗦 📋 𝗧𝗲𝘀𝘁 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁: Jira, Confluence, ClickUp, Trello, TestRail, Qase Support structured qa manual, defect tracking, and transparent software qa testing processes led by a disciplined qa tester and qa engineer. 🌐 𝗪𝗲𝗯 & 𝗖𝗿𝗼𝘀𝘀-𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺 𝗩𝗮𝗹𝗶𝗱𝗮𝘁𝗶𝗼𝗻: BrowserStack, LambdaTest Professional website testing performed as a web tester and website tester, ensuring cross-browser reliability. 📱 𝗠𝗼𝗯𝗶𝗹𝗲 & 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺 𝗧𝗲𝘀𝘁𝗶𝗻𝗴: Validation as a mobile app tester and an app tester to extend software qa testing coverage under structured qa manual testing standards. 🔌 𝗔𝗣𝗜 & 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗩𝗮𝗹𝗶𝗱𝗮𝘁𝗶𝗼𝗻: Postman, SQL Backend logic verification, reporting checks, and data entry validation including manual data entry workflows. 🤝 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 𝗖𝗼𝗹𝗹𝗮𝗯𝗼𝗿𝗮𝘁𝗶𝗼𝗻: Work alongside qa automation engineer and automation tester teams to support scalable qa automation adoption while maintaining strong qa manual coverage and balanced software qa testing strategy. 𝗞𝗘𝗬 𝗣𝗥𝗢𝗝𝗘𝗖𝗧𝗦 🌍 WHO COVID Monitoring Service Delivered structured software qa testing and enterprise-level website testing as qa tester and qa engineer, ensuring production stability as web tester. 🇩🇰 Danish Government Housing Platform Performed large-scale qa testing, cross-browser validation, and regression cycles as qa tester, qa engineer, and website tester. 🏢 Enterprise ERP System Validated financial logic, documentation, and operational flows including collaboration with data analyst roles and ensuring compliance-related structures similar to user manual.. ❤️ Healthcare Donation Platform Executed secure transaction software testing, including home health qa validation and structured qa manual testing oversight. ☁️ SaaS & CRM Systems Worked on cloud platforms requiring salesforce qa, deep ux qa, and scalable software qa testing processes. 💪 𝗖𝗼𝗿𝗲 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 • Full-cycle Software QA Testing • Structured QA Manual and qa manual testing • Functional, regression, and exploratory qa testing • Cross-browser website testing as a web tester • API & database validation • Collaboration with qa automation, qa automation engineer, and hybrid teams • Scalable qa engineering frameworks My work as a QA Tester, qa tester, and strategic QA Engineer reduces production defects through disciplined qa manual execution and reliable software qa testing governance. If you need a reliable QA Tester, experienced QA Engineer, detail-oriented Web Tester, and structured QA Manual specialist delivering enterprise-level Software QA Testing, I am ready to contribute immediately. Let’s build software that performs flawlessly in real-world conditions!

  • Manual Testing
  • Web Testing
  • QA Engineering
  • Quality Assurance
  • Software QA
  • Software Testing
  • Mobile App Testing
  • Regression Testing
  • Usability Testing
  • Functional Testing
  • API Testing
  • Automated Testing
  • Performance Testing
  • Game Testing
  • Beta Testing
  • Testing
  • Bug Tracking & Reports
  • QA Testing
  • Test Case Design
  • Jira
Andriy B.

Kiev, Ukraine

$25/hr
5.0
5 jobs

I'm a Full Stack .NET Developer with 6+ years of commercial experience, specializing in building fast, secure, and scalable web applications. 🤝 Umbraco Expert: Migrated multiple legacy platforms from Umbraco 7/8 to 13, enhancing performance by ~30% and enabling easier content management. I combine this with modern front-end frameworks (Angular & Blazor) and deploy on Azure for reliable cloud scalability. 💡 Real-world impact: Overhauled a B2B portal, creating role-based access to enterprise resources — faster, more secure. Built RESTful APIs and server-side functionality using ASP.NET Core, .NET 8, and Entity Framework. Implemented CI/CD pipelines (Azure DevOps/GitHub Actions) for automated, zero-downtime deployments. I'm passionate about ownership — from inception to delivery — ensuring top-quality code, timely communication, and client satisfaction. ✅ What I bring to your team: Modern .NET backend (ASP.NET Core, Web API, EF) Rich frontend with Angular or Blazor Umbraco customization & CMS migration Cloud-native devops on Azure (pipelines, App Services, Functions) 👉 Ready to elevate your next .NET project? Let’s connect! .🛠️ Key Skills .NET Stack: C#, .NET 6/7/8, ASP.NET Core MVC, Web API, Entity Framework, LINQ Frontend: Angular 2+, Blazor (WASM/Server), JavaScript/TypeScript, HTML/CSS, Razor CMS: Umbraco 7 → 13 migrations & backoffice dev Cloud & DevOps: Azure App Services/Functions, DevOps Pipelines, CI/CD, GitHub Actions, Git, Swagger, Postman. Databases: Microsoft SQL Server, MySQL, Firebase Tools: Visual Studio, ReSharper, SVN, Kendo UI, jQuery/AJAX, Jira

  • .NET Core
  • AJAX
  • SQL
  • C#
  • CSS
  • jQuery
  • ASP.NET MVC
  • LINQ to Entities
  • Angular
  • Entity Framework
  • Umbraco
  • Azure DevOps
  • CI/CD
  • Blazor
Oleksandr V.

Volodymyr-Volynskyi, Ukraine

$18/hr
5.0
2 jobs

🟨 Tested 20+ web & mobile products before release 🟨 Helping teams catch bugs early and avoid costly fixes later 🟨 Reduce production bugs by 50% I’m one of those QA tester specialists who doesn’t just “run tests” I look at the product like a real user and break it before your users do. What I do as a QA tester Manual QA tester / Software QA testing ✔️ Full-cycle software testing: regression, smoke, acceptance ✔️ Web testing, app testing (iOS / Android), cross-browser testing, quality assurance software ✔️ QA tester focused on real user flows, not just checklists ✔️ Clear bug reports in Jira QA automation / Automation tester ✔️ QA automation using Cypress and Playwright ✔️ Automation tester building stable end-to-end tests ✔️ QA automation engineer improving or rebuilding test coverage ✔️ Integration with CI (GitHub Actions, pipelines) ✔️ API testing with Postman and other tools I’m a QA engeneer (manual tester and automation tester) who works with products where bugs cost real money, SaaS platforms, marketplaces, business tools. My Tech Stack: ✔️ Cypress, Playwright, automation selenium Selenium, WebdriverIO ✔️ JavaScript, TypeScript, Python, Java ✔️ Postman, SoapUI ✔️ Jira, TestRail, X-Ray ✔️ BrowserStack, Sauce Labs ✔️ MySQL, PostgreSQL ✔️ OpenAI API, LangChain, HuggingFace I am a senior qa engineer, (automation engineer, qa automation engineer include manual testing) who focuses on modern, production-ready stacks and don’t take projects who need wordpress developer, react developer, front-end developer, full stack developers, project managers, python developer, react native developer, software developer, java developer, software product manager, Swift, python django, Angular, WordPress, Laravel, brazil, PHP, Vue, or Webflow, jest, design, gps, flutter, link building, copywriter, website traffic because my main focus is always on QA testing and product quality. Have a product that needs a QA tester or QA automation engineer? Click "Invite", send a short description, and I’ll show you where your product can break - before your users do

  • Web Testing
  • Test Results & Analysis
  • Test Management
  • Test Execution
  • Test Case Design
  • Test Plan
  • Software Testing
  • Jira
  • Bug Tracking & Reports
  • Functional Testing
  • Manual Testing
  • Usability Testing
  • QA Engineering
  • Software QA
  • Quality Assurance
  • Mobile App Testing
  • Regression Testing
  • Automated Testing
  • Performance Testing
  • API Testing
Oleksandr T.

Kyiv, Ukraine

$40/hr
5.0
56 jobs

Want smarter automation, better user engagement, and AI-powered growth? Send me your idea and I’ll break it down into a clear AI Chatbot Development strategy with quick wins and scalable long-term architecture. As your AI Chatbot Developer / AI Agent Developer, I’ll also explain how AI Chatbot Development drives business development and revenue 🤖 🔹 AI Engineer with 18+ years of programming experience (since 2006) 🔹 100+ chatbots / ai agent built as AI Agent Engineer 🔹 Fast, clear communication & startup-friendly mindset 🔹 Trusted AI Automation Specialist by global 100+ clients & 20+ startups 🔹 AI Agent Developer | AI Chatbot Developer | Telegram Bot Expert | Web Developer I’m a senior engineer / ai agent developer / ai chatbot developer / agentic ai developer specializing in AI chatbot, AI platforms, AI solutions for Crypto and automation-driven businesses. My work focuses on building production-ready AI Chatbot (s), AI Agent (s), AI RAG, AI assistants, autonomous agents, Telegram trading bots, and crypto Telegram bots that scale securely and reliably. Whether you need website chats, voice AI agent, customer support automation, Telegram bots, Slack bots or advanced AI RAG systems, my approach ensures real business impact—not just demos. 🚀 AI Results I’ve Delivered • 100+ chatbots deployed across websites, Telegram, and Slack • AI Chatbot Development reducing human support workload by 60%+ • AI Agent Development projects automating customer support and lead generation • Automation Engineer handling 10,000+ concurrent users • RAG chatbot systems for SaaS platforms and internal knowledge bases • AI workflow automation and AI-powered business process automation • 40+ Blockchain-related chatbot projects (DeFi, wallets, payments) 🔎 Why Clients Choose My Services ⭐ 18+ years of real-world programming experience ⭐ Deep expertise in Artificial Intelligence, Generative AI, machine learning, and NLP ⭐ Business-first mindset focused on ROI ⭐ Strong experience with Crypto, Web3, SaaS, and AI startups ⭐ Reliable delivery of production-grade ai chatbot and AI agent systems ⭐ Practical deployments for customer support (Tidio) and lead generation (Conversiobot) 🧠 Core Skills & Technologies AI Chatbot Developer Stack 🔹 Artificial Intelligence, Data Science & Machine Learning 🔹 Generative AI, Deep Learning & Large Language Models (LLM) 🔹 Natural Language Processing (NLP), Neural Network & Data Analysis 🔹 LangChain, LangGraph, CrewAI, AutoGen 🔹 AI RAG chatbot & Knowledge Base AI 🔹 Multi-agent & AI Agent Developer services 🔹 Open AI chatbot, Claude, Gemini, GPT-3 & GPT-4 integrations 🔹 DialogFlow, ManyChat, Botpress 🔹 Website chat, Telegram bot, WhatsApp chatbot, Slack & Discord bot 🔹 AI sales agent and deal closer chatbots Frameworks / Databases 🔹 Python, PHP, JavaScript 🔹 Flask, FastAPI, Node.js, TensorFlow, PyTorch 🔹 FAISS, Chroma, Pinecone, Weaviate 🔹 MySQL, PostgreSQL, MongoDB 🔹 React 📌 Full-Spectrum AI Chatbot Development Services 🔹 AI Agent Development, bot development and AI workflow automation 🔹 RAG chatbot system for private data & SaaS 🔹 Website chatbot, Slack bot & Voiceflow chatbot 🔹 Business automation and AI integration 🔹 Etsy marketing and Pinterest marketing 🔹 WordPress, API integration & admin dashboard 🔹 Blockchain & Web3 chatbot 🔹 AI Agent automation & conversational workflow 🎯 Specialized AI Chatbot Development ⭐ AI customer support & lead gerenation ⭐ SaaS assistant ⭐ AI RAG ⭐ AI Agent Developer for startups and enterprises ⭐ Crypto / Blockchain Telegram trading bots 📈 Advanced AI Chatbot Development & AI Agent Development I don’t just “build bots” — I engineer intelligent systems. My AI Chatbot Developer process covers conversation design, model selection, AI Agent Development, and scalable backend architecture. Using LangChain, LangGraph, ai agent n8n, FastAPI, and modern AI pipelines, I build AI Agents that reason, retrieve data, and execute workflows — as your expert AI Agent builder and AI Agent creator. As a senior AI Chatbot Developer / AI Agent Developer, my focus is reliability, security, and measurable results for chatbot marketing and business automation. 🔹 For SaaS & AI platforms, I build AI RAG chatbot solutions that answer accurately from private data. 🔹 For startups, I provide MVP-focused AI Chatbot Development that scales smoothly. 🔹 For Crypto projects, I deliver chatbots integrated with smart contracts and payment systems. 🛠 Chatbot Development Toolkit Python, PHP, JavaScript, Flask, FastAPI, Node.js, React, LangChain, LangGraph, OpenAI, Claude, Gemini, FAISS, Pinecone, DialogFlow, ManyChat, PostgreSQL, MongoDB. 📩 If you’re looking for a senior AI Chatbot Developer / AI Agent Developer specializing in AI Chatbot Development, AI RAG systems and conversion-focused AI Chatbot Developer solutions, let’s talk. I build intelligent systems that actually work — and scale.

  • Python
  • Chatbot Development
  • Natural Language Processing
  • Chatbot
  • Bot Development
  • Artificial Intelligence
  • Node.js
  • PHP
  • Machine Learning
  • React
  • Deep Learning
  • JavaScript
  • PyTorch
  • TensorFlow
  • WordPress
  • Data Analysis
  • Blockchain
  • Data Science
  • Neural Network
  • Generative AI

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