Senior Data Platform Engineer (Python/Oracle) Hybrid

Citigroup Inc.; Belfast City District; Hybrid; GBP 90,000 - 120,000; Full time

Benefits offered by this job

Hybrid + remote work

Learning & certifications

Enterprise impact

Wellbeing & compensation

Job summary

Citi is seeking an experienced Applications Development Senior Programmer Analyst to join the MRD technology organization. You will design, develop, test and implement the Fusion platform for centralizing reference data across Citi’s global lines.

With 5–8 years in software engineering, you will build high-performance pipelines in Python and Oracle, optimise databases and contribute to scalable enterprise solutions in a hybrid work environment.

Qualifications

• Experience delivering enterprise-scale systems into production.
• Strong Python (3.x) for data processing and services.
• Advanced Oracle SQL/PLSQL and performance tuning.
• Familiar with CI/CD and automated testing (pytest/unittest).
• Excellent analytical and communication skills.
• Bachelor’s degree in Computer Science or related field.

Responsibilities

• Design, code, test and implement backend services and ETL pipelines.
• Architect and optimise Oracle databases and SQL queries.
• Translate data requirements into scalable tech solutions.
• Tune performance; implement partitioning and indexing strategies.
• Follow software development best practices and TDD.
• Collaborate in CI/CD, DevOps, and production support.
• Mentor junior developers and participate in Agile ceremonies.

Skills

Python

Oracle SQL

Data Modeling

CI/CD

Testing

Communication

Education

Bachelor's degree in CS/SE

Tools

Git

Oracle tooling

Job description

Citi is seeking an experienced Applications Development Senior Programmer Analyst to join the MRD technology organization. You will design, develop, test and implement the Fusion platform for centralizing reference data across Citi’s global lines.

With 5–8 years in software engineering, you will build high-performance pipelines in Python and Oracle, optimise databases and contribute to scalable enterprise solutions in a hybrid work environment.