Fullstack Python Software Engineer

• Position: Fullstack Python Software Engineer
• Location: Warsaw, Poland
• Working mode: hybrid, 3 days a week from the office

About our client

Our client is a leading global investment firm operating across multiple asset classes and markets. The company combines fundamental and systematic investment strategies, supported by advanced technology, data analytics and innovative software solutions.

The Technology team focuses on developing and modernizing the firm’s technology infrastructure, leveraging open-source tools, cloud technologies, AI and modern software engineering practices. The Warsaw office brings together experienced specialists who contribute to the development of internal platforms and systems supporting the company’s global operations.

About the role

As a Software Engineer, you will help modernize the financial reporting platform used by finance, management and investment teams to monitor business performance. You will develop scalable data pipelines, ETL processes and reconciliation workflows to ensure the accuracy, quality and reliability of financial data. The role also involves building analytical applications, reporting tools and user interfaces that turn complex financial information into actionable insights. You will work closely with finance specialists and other engineers, taking ownership of solutions throughout the entire development lifecycle, from design to production support. This position combines software engineering, data processing, analytics and front-end development.

Requirements

• 7+ years of software development experience and a background in Computer Science or a related technical field.
• Strong experience with data engineering, analytics, ETL processes and data reconciliation using T-SQL, Python and Airflow.
• Solid software development skills in Python or C#.
• Experience designing, developing and maintaining end-to-end systems, including coordinating with users and business stakeholders.
• Knowledge of front-end development and data visualization using JavaScript and React.
• Ability to build reliable systems with a strong focus on numerical accuracy, data quality and operational stability.
• Excellent communication skills and the ability to collaborate effectively with technical and non-technical stakeholders.
• High ethical standards and a professional approach to working with sensitive business and financial data.

Responsibilities

• Modernize and improve the financial reporting platform used by finance, management and investment teams.
• Design and develop scalable data pipelines, ETL processes and reconciliation workflows.
• Build analytical applications, reporting tools and visualizations that support financial analysis and decision-making.
• Develop validation and adjustment tools to improve reporting accuracy, strengthen controls and reduce manual work.
• Collaborate with finance, valuation and technology teams to translate business requirements into technical solutions.
• Take ownership of features throughout the development lifecycle, including design, implementation, testing, deployment and ongoing maintenance.
• Analyze data flows and calculation logic to identify gaps and improve reporting processes.
• Create intuitive user interfaces that help stakeholders investigate financial trends, exceptions and performance drivers.
• Support production systems, monitor their performance and continuously improve platform reliability.

The offer

• Sports card.
• Private life insurance.
• Private medical and dental care, including a vision allowance.
• Private pension scheme.
• Business travel accident insurance.
• Employee Assistance Program.
• Educational assistance and reimbursement.
• Volunteer opportunities.
• Budget up to 38 000 PLN gross/month