Hire the Best Oracle Application Express Developers
in Ukraine

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Taras S.

Dnipro, Ukraine

$35/hr
5.0
24 jobs

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

  • Oracle Database
  • SQL
  • PostgreSQL
  • Transact-SQL
  • C++
  • Database Design
  • ETL
  • SQL Programming
  • Oracle PLSQL
  • Database Programming
Oleksii K.

Kyiv, Ukraine

$10/hr
5.0
17 jobs

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:

  • Oracle Database
  • SQL
  • Object Pascal
  • API Development
  • Microsoft SQL Server
  • Git
  • Delphi
  • Database
  • Web Application
  • JavaScript
  • RESTful API
  • C#
  • MantisBT
  • Netting
  • SQL Programming
Oleksandr V.

Kyiv, Ukraine

$37/hr
4.4
22 jobs

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. ๐Ÿ”น Key Expertise: โœ… Oracle PL/SQL, MySQL, SQL Performance Tuning โœ… Database Design, Optimization, and Refactoring โœ… ETL, Data Migration, API & Automation Integrations โœ… Custom Reports & Dashboards (Looker Studio, BI Tools) โœ… 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. Letโ€™s optimize your database performance today!

  • Oracle Database
  • Database Design
  • Query Tuning
  • MySQL
  • SQL
  • Database Optimization
  • Oracle PLSQL
  • Java
  • Database
  • Looker Studio
  • XML
  • GitHub
  • HTML
  • API Integration
  • ETL
Dmytro P.

Kyiv, Ukraine

$19/hr
5.0
1 jobs

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

  • Oracle Programming
  • Oracle Siebel
  • Oracle PLSQL
  • Oracle Forms
  • Oracle E-Business Suite
  • Visual Basic for Applications
Denys P.

Zaporizhzhya, Ukraine

$24/hr
5.0
11 jobs

โšก๏ธ Full Stack Development โšก๏ธ Desktop Software Development ๐Ÿ’ป Back-End Development ๐Ÿ“œ .NET and C#: ๐Ÿ”น ASP.NET Core ๐Ÿ”น Entity Framework Core ๐Ÿ”น FluentValidation ๐Ÿ”น MediatR ๐Ÿ”น Automapper ๐Ÿ”น FastExpressions ๐Ÿ”น Serilog ๐Ÿ”น SignalR ๐Ÿ”น Identity Framework Core ๐Ÿ”น BenchmarkDotNet ๐Ÿ”น xUnit, nUnit, FluentAssertions, NSubstitude, Bogus ๐Ÿ”น Polly ๐Ÿ”น Azure DevOps ๐Ÿ”น Azure services (Virtual Machines, App Services, AKS, Azure SQL, Azure AD, Storage, Networking) ๐Ÿ”น CI/CD tools and practices (Azure DevOps, GitHub Actions) ๐Ÿ”น Networking concepts (VNet, NSG, VPN, ExpressRoute) ๐Ÿ”น Scripting and automation (PowerShell, Azure CLI, Python) ๐Ÿ“œ Databases: ๐Ÿ”น MS SQL ๐Ÿ”น MySQL ๐Ÿ”น Postgres ๐Ÿ”น MongoDB ๐Ÿ”น Oracle ๐Ÿ“œ Architecture: ๐Ÿ”น DDD ๐Ÿ”น Event Driven Design ๐Ÿ”น Clear Architecture ๐Ÿ’ป Front-End Development ๐Ÿš€ Expertise in: ๐Ÿ“ฑ React & React Native (Expo): Building dynamic web and mobile applications ๐ŸŒ Modern Frontend Frameworks: Proficient in React, Angular 2+, Vue.js, and Next.js for responsive, scalable web development ๐Ÿ”ง Backend Knowledge: Familiar with PHP (Laravel, Slim, Lumen) and Node.js for basic backend integration ๐Ÿ›’ CMS & E-Commerce: Expertise in WordPress, WooCommerce, Plentymarkets, Magento theme/plugin development, and custom integrations โœจ Clean, Efficient Code: Passionate about writing maintainable and scalable solutions for a smooth user experience ๐Ÿ”— API Integration: Skilled in SOAP/RESTful API development and integration for seamless client connectivity ๐Ÿ’ช๐Ÿป The following stack that successfully used: ๐Ÿ”น SCSS ๐Ÿ”น CSS ๐Ÿ”น HTML ๐Ÿ”น TypeScript ๐Ÿ”น RXJS ๐Ÿ”น NGRX ๐Ÿ”น NextJS ๐Ÿ”น ReactJS ๐Ÿ”น REDUX ๐Ÿ”น SAGA ๐Ÿ”น Promises ๐Ÿ”น Server Side Rendering based on NextJS ๐Ÿ”น NestJS ๐Ÿ”น MySQL ๐Ÿ”น ExpressJS ๐Ÿ”น Plentymarkets โšก๏ธ PM: ๐Ÿ”น 20+ years of system analysis, application development and programming experience ๐Ÿ”น Oracle | PL/SQL development, and Project Management experience ๐Ÿ”น Leading team up to 10 persons ๐Ÿ”น Ability to meet deadlines ๐Ÿ”น Strong problem-solving and communication skills ๐Ÿ”น Strong experience in contact with exacting project stakeholders ๐Ÿ”น Experience in project estimation, timely realization control, requirements definition, design, architecture, testing and support ๐Ÿ”น Clear understanding of all stages in software development ๐Ÿ”น Strong leadership abilities, good communication skills ๐Ÿ”น Well skilled in Oracle development ๐Ÿ”น Understanding of people management ๐Ÿ”น Technology evaluation and business requirements analysis skills ๐Ÿง  AI: ๐Ÿ”น Machine Learning ๐Ÿ”น Large Language Models (LLM) ๐Ÿ”น Prompt Engineering ๐Ÿ”น LangChain ๐Ÿ”น OpenAI ๐Ÿ”น Anthropic ๐Ÿ”น Google GenAI ๐Ÿ”น FAISS ๐Ÿ”น Retrieval Augmented Generation (RAG) โšก๏ธ Database Administration โšก๏ธ Database Development โšก๏ธ Solution Architecture ๐™Ž๐™š๐™–๐™ง๐™˜๐™ ๐™›๐™ค๐™ง ๐™ข๐™š ๐™ช๐™จ๐™ž๐™ฃ๐™œ ๐™ฉ๐™๐™š๐™จ๐™š ๐™ ๐™š๐™ฎ๐™ฌ๐™ค๐™ง๐™™๐™จ: 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

  • Oracle
  • Angular
  • ASP.NET
  • React
  • Project Management
  • C#
  • React Native
  • Machine Learning
  • Prompt Engineering
  • .NET Framework
  • Next.js
  • Web Development
  • Mobile App Development
  • Back-End Development
  • Front-End Development
  • Project Management Support
  • IT Project Management
  • Agile Project Management
  • Scrum
  • Expo.io

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