Senior Full-Stack Engineer (Python/ReactJS)

We are looking for a Senior Full-Stack Engineer to join our team and drive the development of Treasury-focused technology solutions. You will take ownership of applications responsible for wire transfer processing and global bank account management, ensuring these systems are accurate, compliant, and highly reliable.

Your role will center on refactoring and redesigning critical systems while ensuring their stability and uptime for Treasury operations.

Responsibilities

Develop, enhance, and maintain applications using Python, FastAPI, React, and PostgreSQL

Refactor and redesign legacy systems to improve performance, scalability, and compliance

Build and maintain high-performance, secure, and resilient microservices and APIs

Perform test automation and manual integration testing for robust code delivery

Architect and implement solutions that support resiliency and auditability in payment platforms

Design and evaluate database models to ensure efficient data storage and retrieval

Collaborate with cross-functional agile teams across global time zones on complex Treasury initiatives

Ensure compliance with financial audit standards and best practices in Treasury systems

Monitor deployments using AWS services, including S3, Lambda, and CloudWatch

Promote code quality by participating in code reviews and engaging in peer learning

Use Atlassian tools like Jira and Confluence to document, track, and manage work

Drive efforts in applying DevOps and CI/CD practices to optimize development pipelines

Requirements

3+ years of experience in full-stack software development using Python, React, and FastAPI

Experience with PostgreSQL, SQL, and basic data analysis

Expertise in developing and integrating React applications for front-end functionality

System design expertise including microservices architecture, API design, and database modeling

Knowledge of Docker for containerization and deployment of applications

Background with test automation and integration testing tools for reliable delivery pipelines

Familiarity with AWS services such as S3 buckets, Lambda, AWS AKS, and CloudWatch

Experience in refactoring financial systems with a focus on compliance and operational reliability

Proficiency with Atlassian tools like Jira and Confluence for project management and collaboration

Experience in agile team workflows, working on high-stakes, mission-critical applications

Strong collaborative mindset with an ability to engage effectively across global teams

English level of minimum B2 (Upper-intermediate) for effective communication

Nice to have

Experience with GitHub Actions, Jira↔GitHub integrations, and DevOps best practises

Background with payment networks, SWIFT/ACH processing, and Treasury systems integration

Prior exposure to financial services or Treasury operations, with domain knowledge in payments, wire transfers, account reconciliations, and cash management

We offer

International projects with top brands

Work with global teams of highly skilled, diverse peers

Healthcare benefits

Employee financial programs

Paid time off and sick leave

Upskilling, reskilling and certification courses

Unlimited access to the LinkedIn Learning library and 22,000+ courses

Global career opportunities

Volunteer and community involvement opportunities

EPAM Employee Groups

Award-winning culture recognized by Glassdoor, Newsweek and LinkedIn