GenAI-Driven Senior Software Engineer (Java/Python)

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

Benefits offered by this job

27 days annual leave

Discretional bonus

Private medical & life insurance

Employee assistance program

Pension plan

Parental leave

Employee discounts

Learning resources

Job summary

Citigroup Inc. is seeking a Senior Software Engineer (Java or Python) to help shape next‑gen financial software. You will engage in full‑stack development, leverage Spring Boot/Core and Flask/FastAPI, and build cloud‑native solutions with modern JS frameworks.

You will also explore Gen‑AI concepts, APIs, and scalable architectures while mentoring mid‑level staff and collaborating with cross‑functional teams in a hybrid work setting.

Qualifications

• Experience in full‑stack application development with Java or Python.
• Backend with Spring Boot/Core and Flask/FastAPI.
• Solid frontend experience with modern JavaScript frameworks.

Responsibilities

• Partner with management teams to integrate functions and deploy new products.
• Resolve high impact problems through evaluation of processes and standards.
• Provide expertise in applications programming and align with architecture blueprint.
• Develop standards for coding, testing, debugging and deployment.
• Mentor mid‑level developers and analysts; allocate work as needed.
• Assess risk and ensure compliance with laws and policies.

Skills

Java

Python

Frontend development

Cloud computing

Gen‑AI concepts

OpenAI API integrations

Tools

Spring Boot

Spring Core

Flask

FastAPI

React

Angular

Vue

LangChain

LangGraph

MLflow

n8n

AWS

GCP

Azure

Job description

Citigroup Inc. is seeking a Senior Software Engineer (Java or Python) to help shape next‑gen financial software. You will engage in full‑stack development, leverage Spring Boot/Core and Flask/FastAPI, and build cloud‑native solutions with modern JS frameworks.

You will also explore Gen‑AI concepts, APIs, and scalable architectures while mentoring mid‑level staff and collaborating with cross‑functional teams in a hybrid work setting.