Dalia C.-Oracle Developer
Check rate
Experience
Oracle Developer
Freelance
- Design and implementation of an OCI-based DWH and ETL system to replace legacy mainframe applications
- Development of a database optimization strategy and planning the rapid conversion of JCL and COBOL routines to PL/SQL with the help of AI
- Development of an Oracle Apex-based app for internal administrative processes in the public sector (office equipment, employee training)
- Implementation of PL/SQL workflows for approval processes and creation of a responsive mobile version with JavaScript and CSS
- Use of Azure DevOps for backlog and documentation, as well as Git for version control
- Development of REST interfaces for CRM systems
- Replacement and reprogramming of Oracle Forms screens with Oracle Apex and upgrading to the latest Apex versions
- Design of a Git branching strategy and conducting code reviews
- Maintenance and further development of an EDI-based data exchange system based on Oracle Advanced Queuing for the public sector in Austria
- Data analysis and creation of charts in the Oracle Apex frontend; installation of standalone ORDS and Apex 23.1
- Agile working according to the Spotify Model; development of complex Apex screens with the support of Oracle JET
- New development and customization of existing PL/SQL packages, workarounds for database version differences and query optimization
- Development of Apex applications for broker pools to manage and optimize Oracle databases in the banking sector, including SSO-based authorization systems with OAuth2 and Keycloak
- Development of extensive Oracle Apex applications for BI and data mining modernization projects, as well as development of manual and automated projection methods in the frontend
- Implementation of data warehousing projects in the banking sector and use of Scrum and Kanban in team-oriented projects
Oracle Developer
Deutsche Apotheker- und Ärztebank
- Training in the Avaloq core banking system and corresponding certification ACCP major in core
Shareholder
Techontrol Automotive Systems Engineering and Racing
- Founding of a car care, service and repair company
- Capital investment as well as development of the company website and software
- Creation of an inspection system for used cars based on Oracle PL/SQL and Apex
Programmer
Scottish Environment Protection Agency
- Project-driven information integration and migration from other systems to Oracle
- Management of ETL interfaces as well as development of SOAP and REST web services
- Database tuning and query optimization
- Design of highly dynamic Apex applications using PL/SQL and JavaScript
- Management and further development of license management applications based on Oracle Forms
- Adaptation of agile methods in software development
Owner
Techontrol Ltd.
- IT consulting for customers in East Asia
Software Developer
Accenture
- Subject matter expert in Oracle Apex for Siemens in Munich
- Consulting on two Apex projects and taking over a complex Apex application within a short time
- Creating reports with JasperReports
- Developing a text comparison system based on PL/SQL
- Developing a migration portal as a control system for the second phase of a data migration project, based on Oracle PL/SQL and Apex with data exchange via SOAP web services
MES Software Developer
ArcelorMittal Galati
- Programming Oracle production applications with Oracle Forms, PL/SQL and Pro*C
- Data collection for production planning, production processes, and machine maintenance and repair based on Oracle Forms, Oracle Reports, Pro*C and COBOL
- Designing, developing and maintaining interfaces to other systems, especially SAP
- Developing a data monitoring system and a task-based reporting system based on PL/SQL and VBS
- Supporting the introduction of a new MES system by optimizing queries under MS SQL Server and programming with C#
- Creating reports for Broner Metals using ASP.NET, VB.NET and C#
Owner
CYI cadouri si inventii SRL
- Sole distributor and partner of the American company CYI Inc.
- Designing and developing the company website using PHP, JavaScript and MySQL
Native English and French Teacher
Learning Centers and Schools
- Teaching students aged 2 to 17
- Responsible for curriculum development and creating teaching materials
Teaching Assistant
Hong Kong University of Science and Technology
- Conducting seminars for various mathematics courses
- Participating in the administration of the student portal
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Government and Administration, Banking and Finance, Metals and Mining, Education, Information Technology, and Automotive.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Business Intelligence, Production, Product Development, and Operations.
Summary
Many years of expertise in database development, data modeling, PL/SQL, Apex and JavaScript.
Several years of experience with DWH, database replication and migration, data analysis and forecasting using ML and AI.
Commercial and freelance project experience in Europe and Asia.
Skills
- Programming Languages: Sql, Pl/Sql, Javascript, Oracle Jet, Jquery, Ajax, Html, Css
- Databases: Oracle 8i, 10g, 11g, 12c, 18c, 19c, 23ai
- Software: Pl/Sql Developer, Sql Developer, Toad, Sql*Plus, Git, Jira, Confluence, Tfs, Bitbucket, Docker, Jenkins, Visual Studio Code Editor, Oracle Forms
- Framework: Oracle Application Express 4.2-24.2
- Operating Systems: Unix (Hp-Ux), Linux, Windows Xp, Windows 7, Windows 10
- Cloud: Oci, Aws, Azure
- Ml/Ai: Oml Notebooks, Oci Gen-Ai
Languages
Education
Mathematics Department, Hong Kong University of Science and Technology
Doctoral student, credit requirements fulfilled with GGA of 10.08 (A-) · Mathematics · Hong Kong · 10.08
University of Bucharest
Major in Analytical Functions · Mathematics · Bucharest, Romania
University of Bucharest
Qualified teacher in Mathematics, secondary level · Mathematics · Bucharest, Romania
Certifications & licenses
ACCP Major In Core
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Dalia is based in Korschenbroich, Germany.
Dalia speaks the following languages: English (Native), French (Native), German (Advanced).
Dalia has at least 24 years of experience. During this time, Dalia has worked in at least 8 different roles and for 10 different companies. The average length of individual experience is 2 years and 5 months. Note that Dalia may not have shared all experience and actually has more experience.
Based on recent experience, Dalia would be well-suited for roles such as: Oracle Developer, Shareholder, Programmer.
Dalia's most recent position is Oracle Developer at Freelance.
In recent years, Dalia has worked for Freelance.
Dalia is most experienced in industries like Government and Administration, Banking and Finance, and Metals and Mining. Dalia also has some experience in Education, Information Technology, and Automotive.
Dalia is most experienced in business areas like Information Technology, Business Intelligence, and Production. Dalia also has some experience in Product Development and Operations.
Dalia has recently worked in industries like Banking and Finance and Government and Administration.
Dalia has recently worked in business areas like Business Intelligence and Information Technology.
Dalia holds a Doctorate in Mathematics from Mathematics Department, Hong Kong University of Science and Technology, a Master in Mathematics from University of Bucharest and a Bachelor in Mathematics from University of Bucharest.
Dalia has 1 certificate: ACCP Major In Core.
The availability of Dalia needs to be confirmed.
Daily rate distribution
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 27 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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