Senior Data Platform Engineer (Python/Oracle) - Hybrid

11037 Citibank, N.A. United Kingdom; Belfast City District; Hybrid; GBP 90,000 - 130,000; Full time

Benefits offered by this job

Hybrid working model (3 days in office

Technical training & certifications

Career development programs

Competitive compensation & wellbeing

Job summary

Citi is seeking an experienced Applications Development Senior Programmer Analyst (C12 / AVP) to join the MRD technology org. You will design, develop, test and implement the OMAI Fusion application, centralizing reference data across Citi’s global business lines.

Lead backend services, ETL pipelines and Oracle database optimization using Python, PL/SQL, and modern CI/CD practices. Collaborate across teams to ensure scalable, secure enterprise solutions.

Qualifications

• 5–8 years of professional software engineering experience delivering enterprise systems.
• Strong Python expertise for enterprise application development and data manipulation.
• Advanced Oracle Database (12c/19c+) and SQL performance tuning.
• Data modeling, MDM concepts and large-scale ETL pipelines.
• Experience with Git, CI/CD pipelines and automated testing frameworks (pytest, unittest).
• Excellent analytical and communication skills; able to work with stakeholders.
• Bachelor’s degree in CS/SE/IT or equivalent experience.

Responsibilities

• Design, code, test, and implement backend services and ETL pipelines for the Fusion platform.
• Architect, optimize and maintain Oracle databases; write, tune, and maintain complex SQL queries.
• Collaborate with business analysts, data stewards and application teams on data requirements.
• Identify bottlenecks, perform performance tuning and implement indexing/memory optimization.
• Adhere to development practices, TDD, automated testing and code reviews.
• Support CI/CD pipelines and production deployments; assist in risk mitigation and governance.
• Mentor junior developers and participate in Agile/Scrum ceremonies.

Skills

Python

Oracle SQL

Data modeling

ETL pipelines

Git

CI/CD

Unit testing (pytest/unittest)

Problem solving & communication

Education

Bachelor’s degree in Computer Science / Software Engineering / Information Technology

Tools

Oracle Database

SQL

Git

pytest

unittest

Job description

Citi is seeking an experienced Applications Development Senior Programmer Analyst (C12 / AVP) to join the MRD technology org. You will design, develop, test and implement the OMAI Fusion application, centralizing reference data across Citi’s global business lines.

Lead backend services, ETL pipelines and Oracle database optimization using Python, PL/SQL, and modern CI/CD practices. Collaborate across teams to ensure scalable, secure enterprise solutions.