Hire the Best Oracle Application Express Developers in Kyiv, UA

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