Python Full Stack Developer (Treasury Transformation) - Senior Associate/ Vice President

Next Frontier Capital; Warszawa; On-site; PLN 240,000 - 300,000; Full time

Job summary

Next Frontier Capital is seeking a Senior Python Full Stack Developer (Treasury Transformation) to lead design and delivery of automation and analytics within the Treasury Transformation team. You will bring deep technical expertise across Python, JavaScript, SQL, and UI design to architect scalable solutions in a fast-paced finance environment.

You will partner with stakeholders, build end-to-end applications, and develop front-end interfaces that present financial insights clearly.

Qualifications

• 7+ years of experience with strong Python development skills and production-quality delivery.
• Strong front-end/UI development experience using JavaScript and demonstrable UI design.
• Proven full stack development experience across front-end, back-end, and data layers.
• Strong SQL skills for querying, transforming, and validating data.
• Ability to translate business requirements into clear technical designs and deliverables.
• Ability to operate in a fast-paced environment with multiple stakeholders.

Responsibilities

• Partner with business stakeholders to translate requirements into technical solutions aligned to internal standards.
• Design, build, and maintain end-to-end applications and automation solutions using Python, JavaScript, and SQL.
• Develop high-quality front-end experiences and interfaces for financial and operational insights.
• Engineer back-end services, data pipelines, and integrations to reduce manual work and improve data quality.
• Collaborate with Corporate Technology to implement secure, scalable solutions with proper controls.
• Communicate delivery status, risks, issues, and timelines for open items clearly.
• Contribute to development, documentation, and training to strengthen adoption and client service delivery.
• Provide ongoing support and iterative enhancements, including triage and root-cause analysis of production issues.

Job description

You will take a senior role within our Transformation Team, driving the design and delivery of sophisticated automation and analytics solutions across the Treasury & Execution Middle Office.

As Python Full Stack Developer (Treasury Transformation) Senior associate/ Vice President within the Treasury and Execution Middle Office team you will bring deep technical expertise across Python, JavaScript, SQL, and UI design, with a proven track record of architecting and delivering complex, scalable solutions in a fast-paced environment. This is a high-visibility role for someone who thrives at the intersection of technology and finance, and who is ready to make a lasting technical impact

Job Responsibilities

• Partner with business stakeholders to understand requirements and translate them into well-defined technical solutions aligned to internal standards.
• Design, build, and maintain end-to-end applications and automation solutions using Python, JavaScript, and SQL, supporting the full System Development Life Cycle (SDLC).
• Develop high-quality, user-focused front-end experiences and interfaces, ensuring usability, clarity, and effective presentation of financial and operational insights.
• Engineer back-end services, data pipelines, and integrations that reduce manual work, improve data quality, and enhance analytics and reporting outcomes.
• Collaborate with Corporate Technology and approved self-service technologies to implement secure, scalable solutions with appropriate controls.
• Communicate delivery status, risks, issues, and dependencies clearly, including ownership and timelines for open items.
• Contribute to development, documentation, and training activities that strengthen adoption and improve client service delivery.
• Provide ongoing support and iterative enhancements for existing solutions, including triage, root-cause analysis, and resolution of production issues as needed.

Required Qualifications, Capabilities, and Skills

• 7+ years of experience with strong Python development skills, with demonstrated experience delivering production-quality solutions.
• Strong front-end / UI development experience using JavaScript, including a demonstrable history of designing and building effective user interfaces.
• Proven full stack development experience, spanning front-end, back-end, and data layers.
• Strong SQL skills, including the ability to query, transform, and validate data to support application and analytics requirements.
• Ability to capture business requirements and translate them into clear technical designs and deliverables.
• Ability to operate effectively in a fast-paced, results-driven environment with multiple stakeholders and concurrent priorities.
• Willingness to learn self-service analytics and process automation tools, and to apply foundational project management and business analysis practices.

Preferred Qualifications, Capabilities, and Skills

• Bachelor’s degree with a focus on Finance and/or Information Systems.
• Experience with HTML and CSS for building and styling user interfaces.
• Experience with database and/or cloud management (beneficial).

J.P. Morgan is a global leader in financial services, providing strategic advice and products to the world’s most prominent corporations, governments, wealthy individuals and institutional investors. Our first-class business in a first-class way approach to serving clients drives everything we do. We strive to build trusted, long-term partnerships to help our clients achieve their business objectives.

We also offer a range of benefits and programs to meet employee needs. Benefits include comprehensive health care coverage, a retirement savings plan, insurance benefits, a discount program including sportscard benefit, an Employee Assistance Program, wellness benefits and more. Eligible employees may also access the company’s social fund for financial support. Additional details about total compensation and benefits will be provided during the hiring process.

We recognize that our people are our strength and the diverse talents they bring to our global workforce are directly linked to our success. We are an equal opportunity employer and place a high value on diversity and inclusion at our company. We do not discriminate on the basis of any protected attribute, including race, religion, color, national origin, gender, sexual orientation, gender identity, gender expression, age, marital or veteran status, pregnancy or disability, or any other basis protected under applicable law. We also make reasonable accommodations for applicants’ and employees’ religious practices and beliefs, as well as mental health or physical disability needs. Visit our FAQs for more information about requesting an accommodation.

Our professionals in our Corporate Functions cover a diverse range of areas from finance and risk to human resources and marketing. Our corporate teams are an essential part of our company, ensuring that we’re setting our businesses, clients, customers and employees up for success. Join Our Treasury Team and Lead the Next Generation of Financial Automation.