Марина

2

Maryna Summary
Hryshko Motivated AI Developer with a strong foundation in database
development and data engineering. Skilled in integrating AI
technologies with traditional data systems to build intelligent,
data-driven applications. Experienced in chatbot development, RAG
systems, and OpenAI API integration using Python and LangChain.
Combines deep expertise in SQL and PL/SQL with hands-on
experience in cloud platforms (AWS) and ETL workflows to design
scalable, high-performance solutions.

Skills
Skills
Contact
AI & Development: OpenAI API, LangChain, RAG, Chatbot
Address:
Development, Python, VertexAI.
Ukraine, Vinnitsa
Data & Databases: SQL, PL/SQL, PostgreSQL, Oracle, Data Modeling,
Phone: ETL
[open contact info](look above in the "contact info" section) Cloud & Workflow: AWS,Google Cloud, Apache Airflow, n8n

Email: Enterprise Systems: Oracle EBS (OEBS), SAP R/3, ABAP
[open contact info](look above in the "contact info" section) Other: REST API Integration, Swift

Linkedin:
[open contact info](look above in the "contact info" section)
Experience
a-hryshko-52b2762a/
Database Developer / GenAI Developer — Freelance
Github: 09/2024 – Present
https://github.com/MarynaHryshk
o ● Built AI-powered chatbots and RAG assistants integrating
OpenAI models with private data sources.
● Developed Python-based pipelines for data ingestion,
Languages transformation, and analysis.
● Optimized Oracle PL/SQL procedures and designed modular
English – B2 educational databases.
German – A2 ● Integrated REST APIs and automated workflows using n8n and
Ukrainian - native
AWS.

Student - 02/2024-07/2024
QALight
Python Development

Software Developer - 04/2015 to 08/2018
KM Ware
 3

Education ● Developed and optimized PL/SQL scripts for business
processes
Zaporizhzhya National ● Implemented customizations and workflows in SAP R/3 and
Oracle EBS systems
Technical University
● Designed and maintained iOS applications using Swift
Master of Computer Science ● Created and consumed REST APIs using JSON and Java
● Managed databases including Oracle, PostgreSQL, MySQL, and
1998 – 2003
Firebase
● Collaborated with teams using Redmine, Jira, and Github for
project management

Certification Oracle Database Developer - 10/2006 to 02/2015
AWS Certified Cloud JSC «Kvazar-Khorte»

Practitioner ● Developed and optimized SQL/PLSQL queries
https://www.credly.com/badges ● Built ETL processes for data migration and transformation
● Automated reporting using Oracle Reports and XML Publisher
/70618c58-5f25-4c30-b9fc-149 ● Participated in the implementation of Oracle e-Business Suite
4db9cc66d/public_url across multiple companies

Collaborated with IT teams to troubleshoot and validate data
integrity across multiple systems.

ABAP Developer - 09/2003 to 06/2006
JSC «Motor-Sich»

Developed custom SAP R/3 modules for HR, FI, QM, and PP
processes.

Worked closely with business analysts to translate functional
requirements into technical solutions.
5