Junior Full Stack Developer

Citigroup; Warszawa; Hybrid; PLN 90,000 - 130,000; Full time

Benefits offered by this job

6% PPE Pension Contribution

Private Medical Care Package

Life Insurance

Employee Assistance Program

Parental Leave

Sport Card

Job summary

Citigroup Poland is seeking a Junior Full Stack Developer to support core banking reporting, integration, and AI engineering. The role covers Python, Java, SAP BusinessObjects, and AI-enabled automation across reporting and enterprise applications in a financial services setting.

You will contribute to reporting modernization, system integrations, and production support, working in an Agile environment with cross-functional teams.

Job description

Junior Full Stack Developer - Core Banking Reporting, Integration & AI Engineering

Role Overview

The Junior Full Stack Developer supports core banking reporting, application development, platform integration, AI enablement and production support activities across the reporting technology estate.

The role provides hands-on development experience across Python, Java, SAP BusinessObjects and AI technologies, contributing to the delivery of reporting solutions, intelligent automation, system integrations and enterprise applications within a complex financial services environment.

Role Summary

A full-stack developer with hands-on experience in Python, Java and SAP BusinessObjects, capable of delivering reporting solutions, application development, AI-enabled automation, system integrations and production support across the platform.

The role combines BusinessObjects reporting, reporting modernisation, Java integration development, Python engineering, AI solution development and operational support activities.

Responsibilities:

• Application & Service Development: Design, build, and maintain full-stack application components, services, and RESTful APIs using Python and Java.
• Core Banking Reporting Solutions: Develop, enhance, and schedule complex financial and operational reports utilizing SAP BusinessObjects and relational databases.
• AI & Intelligent Automation: Assist in building and integrating AI-enabled tools, machine learning pipelines, and automated processing workflows to optimize reporting processes.
• System Integration: Implement robust data exchange and system integration pipelines connecting core banking platforms, data warehouses, and reporting tools.
• Production Support & Troubleshooting: Participate in level-2/level-3 production support activities, analyzing incidents, identifying root causes, and implementing bug fixes.
• Code Quality & Testing: Write clean, modular, and maintainable code adhering to standard software engineering best practices, including unit and integration testing.
• Database Management & Query Optimization: Write and optimize SQL queries, stored procedures, and data models to ensure high-performance reporting and data retrieval.
• Collaboration & Agile Delivery: Work closely with cross-functional teams, business analysts, and senior engineers in an Agile/Scrum environment to deliver sprint objectives.
• Technical Documentation: Maintain comprehensive documentation for system architectures, data flows, codebase changes, and operational runbooks.

Qualifications:

• Education: Bachelor's degree in Computer Science, Software Engineering, Information Technology, or a related quantitative field (or equivalent practical experience).
• Programming Proficiency: Hands-on foundational programming experience with Python and Java.
• Reporting & BI Tools: Practical exposure to or working knowledge of SAP BusinessObjects (Web Intelligence, Universe Design) or equivalent enterprise BI tools.
• Database & SQL Skills: Solid understanding of relational database management systems (RDBMS) like Oracle, PostgreSQL, or SQL Server, with strong SQL querying skills.
• API & Web Technologies: Basic understanding of web technologies (HTML, CSS, JavaScript) and building or consuming RESTful APIs/web services.
• AI & Automation Familiarity: Foundational knowledge or strong interest in AI/ML concepts, LLM integration, or workflow automation tooling.
• Version Control & CI/CD: Familiarity with Git version control and standard CI/CD deployment pipelines (e.g., Jenkins, GitLab CI).
• Analytical & Problem-Solving Skills: Strong analytical mindset with the ability to troubleshoot complex technical issues and trace data discrepancies.
• Communication & Teamwork: Excellent interpersonal and communication skills to collaborate effectively with both technical peers and business stakeholders.
• Domain Awareness: Prior internship experience, academic coursework, or general interest in banking, fintech, or financial services reporting is an advantage.

What we can offer you:

By joining Citi Solutions Center Poland, you will not only be part of a business casual workplace with a hybrid working model (currently up to 2 days working at home per week), but also (potentially, subject to final offer) receive a competitive base salary and enjoy a whole host of additional benefits which can include:

• Employer paid Defined Contribution Pension Plan contribution of 6% of employee's pensionable earnings (PPE Program)
• Employer paid Private Medical Care Package for employees and Private Medical Care Packages for certain family members available at preferential rates
• Employer paid Life Insurance Program for employees and Life Insurance for certain family members available at preferential rates
• Employee Assistance Program financed by Employer
• Paid Parental Leave Program (maternity and paternity leave; statutory and 2 weeks additional paid paternity leave)
• Sport Card for employees subsidized via Social Benefits Fund and Sport Cards for certain family members avail