Hire the Best Oracle Application Express Developers
in Ukraine

Hi, my name is Taras. I have more 8 years experience using of Oracle products(RDBMS, OAF, Form Builder, BI Publisher, OBIEE, ADF) and more 15 years experience in IT in total. Also, my experience includes customization ERP(OeBS, JD Edwards). Created client-server tools for devices(scales, mobile barcode terminals, scanners) and ERP. My primary skills: PL/SQL, SQL, T-SQL, pgPL/SQL BI Reporting, XML/BI Publisher, Grafana, Tableau Visual Studio, Form Builder, OAF, ADF C++(MFC,STL),Java, Javascript

10 years of extensive Oracle Database 10g/11g development 5 years of MSSQL Server 2008/2012 Development 10 years of Delphi development 3 years React/Redux Web development 3 years C# development * SQL (analytic functions, hierarchical queries, complex group operations, ...) * PL/SQL (triggers, stored procedures, packages, dynamic SQL, collections, ...) * Fundamentals of administration (knowledge of the architecture, installation and deployment, users, roles, EXP/IMP) * Performance tuning (trace session, explain plan) * VCL Library, EhLib * Components for DB development: DOA * SQL/T-SQL (stored procedures, functions, triggers, CTE expressions..) * Database Replication, Linked Servers, Jobs * Performance Tuning * Basic of DBA * Redux, Mobx * Thunk, React Saga * Material UI components, React Final Form, Reselect * Node js, Babel * asp.net web api 2.0 framework * asp.net core 6 web api Case tools: ERwin Oracle IDE: PL/SQL Developer Version control: Perforce, Git Bugtracker: Mantis Languages:

Expert Oracle & MySQL Database Developer | Query Optimization & API Integrations With 24+ years of experience in database development, I specialize in Oracle (PL/SQL), MySQL, and SQL query optimization to improve performance, scalability, and efficiency. I have helped businesses reduce query execution times by 80%, migrate databases seamlessly, and integrate complex APIs for high-volume data processing. 🔹 Key Expertise: ✅ Oracle PL/SQL, MySQL, SQL Performance Tuning ✅ Database Design, Optimization, and Refactoring ✅ ETL, Data Migration, API & Automation Integrations ✅ Custom Reports & Dashboards (Looker Studio, BI Tools) ✅ Enterprise-level Systems for Finance, eCommerce, and SaaS My clients have described my work as "fast and precise," "expert-level tuning," and "seamless data integration." I am available for both short-term consulting and long-term database development projects. Let’s optimize your database performance today!

Over 10 year experience of AIM and OUM methodologies * SQL, PL\SQL, Oracle Developer 2000i (Oracle Forms, Oracle Reports), XML Publisher (PDF, XSL, DOC reports using XML-XSL techniques, Oracle BI Publisher Desktop), VBA (Excel, Word), DataLoad, T.O.A.D., Delphi, FoxPro * Oracle e-Business Suite architecture * Business processes engineering and optimization * Team management (up to 20 employees) * Designing of OeBS extensions - custom development and personalization * Oracle e-Business customization - custom forms, complex reports, concurrent programs and sets, personalizations * Oracle Siebel CRM implementation (eScript, workflow, integration) * VBA programming (Excel, Word) - integrating with different datasources, BI reporting (pivot tables), MS Forms for user interface, loading and transformating data

⚡️ Full Stack Development ⚡️ Desktop Software Development 💻 Back-End Development 📜 .NET and C#: 🔹 ASP.NET Core 🔹 Entity Framework Core 🔹 FluentValidation 🔹 MediatR 🔹 Automapper 🔹 FastExpressions 🔹 Serilog 🔹 SignalR 🔹 Identity Framework Core 🔹 BenchmarkDotNet 🔹 xUnit, nUnit, FluentAssertions, NSubstitude, Bogus 🔹 Polly 🔹 Azure DevOps 🔹 Azure services (Virtual Machines, App Services, AKS, Azure SQL, Azure AD, Storage, Networking) 🔹 CI/CD tools and practices (Azure DevOps, GitHub Actions) 🔹 Networking concepts (VNet, NSG, VPN, ExpressRoute) 🔹 Scripting and automation (PowerShell, Azure CLI, Python) 📜 Databases: 🔹 MS SQL 🔹 MySQL 🔹 Postgres 🔹 MongoDB 🔹 Oracle 📜 Architecture: 🔹 DDD 🔹 Event Driven Design 🔹 Clear Architecture 💻 Front-End Development 🚀 Expertise in: 📱 React & React Native (Expo): Building dynamic web and mobile applications 🌐 Modern Frontend Frameworks: Proficient in React, Angular 2+, Vue.js, and Next.js for responsive, scalable web development 🔧 Backend Knowledge: Familiar with PHP (Laravel, Slim, Lumen) and Node.js for basic backend integration 🛒 CMS & E-Commerce: Expertise in WordPress, WooCommerce, Plentymarkets, Magento theme/plugin development, and custom integrations ✨ Clean, Efficient Code: Passionate about writing maintainable and scalable solutions for a smooth user experience 🔗 API Integration: Skilled in SOAP/RESTful API development and integration for seamless client connectivity 💪🏻 The following stack that successfully used: 🔹 SCSS 🔹 CSS 🔹 HTML 🔹 TypeScript 🔹 RXJS 🔹 NGRX 🔹 NextJS 🔹 ReactJS 🔹 REDUX 🔹 SAGA 🔹 Promises 🔹 Server Side Rendering based on NextJS 🔹 NestJS 🔹 MySQL 🔹 ExpressJS 🔹 Plentymarkets ⚡️ PM: 🔹 20+ years of system analysis, application development and programming experience 🔹 Oracle | PL/SQL development, and Project Management experience 🔹 Leading team up to 10 persons 🔹 Ability to meet deadlines 🔹 Strong problem-solving and communication skills 🔹 Strong experience in contact with exacting project stakeholders 🔹 Experience in project estimation, timely realization control, requirements definition, design, architecture, testing and support 🔹 Clear understanding of all stages in software development 🔹 Strong leadership abilities, good communication skills 🔹 Well skilled in Oracle development 🔹 Understanding of people management 🔹 Technology evaluation and business requirements analysis skills 🧠 AI: 🔹 Machine Learning 🔹 Large Language Models (LLM) 🔹 Prompt Engineering 🔹 LangChain 🔹 OpenAI 🔹 Anthropic 🔹 Google GenAI 🔹 FAISS 🔹 Retrieval Augmented Generation (RAG) ⚡️ Database Administration ⚡️ Database Development ⚡️ Solution Architecture 𝙎𝙚𝙖𝙧𝙘𝙝 𝙛𝙤𝙧 𝙢𝙚 𝙪𝙨𝙞𝙣𝙜 𝙩𝙝𝙚𝙨𝙚 𝙠𝙚𝙮𝙬𝙤𝙧𝙙𝙨: C#, ASP.NET Core, .NET Framework, Entity Framework, SQL Server, PostgreSQL, MySQL, REST APIs, JSON, XML, GraphQL, Razor, Blazor, Php, Python, Angular, React, Vue.js, JavaScript, TypeScript, HTML5, CSS3, SCSS, Bootstrap, Tailwind, Azure (App Services, Functions, DevOps, Blob Storage), AWS, Docker, Kubernetes, Microservices, CI/CD, Git, GitHub, GitLab, TDD, xUnit, NUnit, Dapper, Swagger, OAuth, JWT, WebSockets, RabbitMQ, Redis, SignalR, Sitecore, Umbraco, Kentico, DNN, Orchard Core, Contentful, Strapi, ADO.NET, ASP.NET MVC, AngularJS, AJAX, Adobe Photoshop, ASP.NET Web API, Google Analytics, Google Chrome Extension, Ecommerce Website, Browser Extension, Web Application, Website Redesign, API, API Integration, Desktop Application, Website Optimization, Software Debugging, Web Development, Database Development, AI Agent Development, WildFly, Apache HTTP Server, Eclipse Jetty, Microsoft IIS, IBM WebSphere, SQLite, Mimer SQL, Azure Cosmos DB, MongoDB, EC2, ECS, Lambda, S3, RDS, CloudFormation, AWS Backup, IAM, CloudFront, CloudWatch, Laravel, Larvel, Larval, Lavarel, Plentymarkets, iOS, Android, Oracle, PLSQL, PL/SQL, plsql, Anuglar, Angural, Agnural, Angurla, Reatc