Claudiu N.

About Me

Claudiu is a Senior Database Engineer and ETL Developer with a solid background in databases, data warehousing, data engineering, BI, Linux, Big Data, and financial analysis. He is a strong Oracle-certified IT professional highly skilled in SQL and Oracle DB, ETL, design and tuning, strategic planning, database monitoring and growth, performance improvement, and process automation. Claudiu is currently engaged as a Database Consultant/Developer at NTT DATA, working on analytics and CRM tasks and also serving as a PL/SQL and Java developer.

AI, ML & LLM

Frontend

Database

DevOps

Workflow

Other

Work history

UpStack
UpStack
Senior Database Engineer
2022 - Present (3 years)
Remote
  • Establishing user needs, monitoring user access, security, and performance, and managing parameters to provide fast responses to front-end users.

  • Providing high-level database development assistance in creating businesses applications.

  • Ensuring database optimization and implementing database design considering integrity, consistency, security, and privacy.

NTT DATA
NTT DATA
Database Consultant/Developer
2021 - Present (4 years)
Romania
  • Establishing strategic direction on analytics (Databases, Reporting, BI Cloud, Big Data) and CRM (Salesforce) tasks.

  • Working on multiple applications taken over from Volkswagen, monitoring planning and implementation, and reviewing all system documentation.

  • Serving as a PL/SQL and Java developer, working on system integration and back-end development.

Freelance
Freelance
Senior Database Engineer | Senior ETL Developer
2020 - 2022 (2 years)
Remote
  • Created multiple flows/workflows using multiple tools, technologies, and knowledge, including Informatica PowerCenter for the ETL Load -Python for the ETL Load -PL/SQL for developing stored procedures/functions inside databases, AWS, and Apache Airflow for the scheduling process.

  • Performed system integration and back-end development, handling multiple databases and performing ETL from different sources; developed load procedures and normalized databases, created links between DBs, and implemented cron-jobs for scheduling purposes.

  • Integrated complex manufacturer models in the client’s product and different configurations from the client's specifications.

IBM
IBM
Technical Team Lead | Infrastructure & BI Specialist
2016 - 2019 (3 years)
Brasov, Romania
  • Worked on functional requirement analysis, release management planning for the application, created proposals/offers, and designed technical & business solutions.

  • Created new scripts and applications for the operational teams to automate the daily processes; conducted analysis on business dataflows in Informatica ETL.

  • Developed SQL scripts for performance improvement and monitoring DB parameters and worked on SQL Administration, PL/SQL, running scripts.

Showcase

Database Consultant/Developer - NTT DATA Romania
Database Consultant/Developer - NTT DATA Romania
  • NTT DATA offers comprehensive consulting, applications, infrastructure, and business process solutions to support digital transformation.

  • The company focuses on modernizing IT systems and provides measurable results aligned with defined project objectives.

  • The project involved monitoring and implementing information system requirements for Volkswagen applications using technologies like Oracle Databases, Linux/Shell Scripting, Networking, SAP BO/Information Designer Tool for Universes, MySQL, and Java.

Education

ITIL Foundation Level V4
ITIL Foundation Level V4
PeopleCert
2019 - 2019
IBM Design Thinking Practitioner; Cognitive Practitioner; Automotive Industry Foundations; IBM Mentor; IBM Agile Explorer; Cloud Client Success Specialist Project Badge - Level 1
IBM Design Thinking Practitioner; Cognitive Practitioner; Automotive Industry Foundations; IBM Mentor; IBM Agile Explorer; Cloud Client Success Specialist Project Badge - Level 1
IBM
2017 - 2018 (1 year)
Master of Mobile und Internettechnologien in e-Business
Master of Mobile und Internettechnologien in e-Business
Transilvania University of Brasov - Romania
2017 - 2019 (2 years)
Oracle Database 11g: SQL Fundamentals; Oracle Database 11g: Program with PL/SQL; Oracle PL/SQL Developer Certified Associate
Oracle Database 11g: SQL Fundamentals; Oracle Database 11g: Program with PL/SQL; Oracle PL/SQL Developer Certified Associate
Oracle
2016 - 2017 (1 year)
Bachelor of Accounting & Informatics
Bachelor of Accounting & Informatics
Transilvania University of Brasov - Romania
2014 - 2017 (3 years)