Senior Full Stack Engineer (Python + React + SQL)

We are seeking a skilled and versatile Senior Full Stack Engineer to join our dynamic development team, combining strong programming and data management expertise with familiarity with financial instruments. You will design, develop and maintain end-to-end software applications and systems, from frontend to backend, leveraging a modern technology stack to build scalable and high-quality solutions within the financial industry domain.

Responsibilities

• Design, implement and optimize responsive, user-friendly web interfaces using the latest UI/UX technologies
• Develop and maintain server-side components of software applications
• Monitor and optimize performance, scalability and reliability of backend systems
• Collaborate with cross-functional teams including data engineers, product managers and designers to ensure seamless integration of frontend and backend components
• Write clean, efficient and well-documented code following best practices and coding standards
• Use AI coding agents such as Cursor, Claude Code and Codex
• Build and optimize database structures and queries for efficient data storage and retrieval
• Perform thorough testing and debugging to identify and resolve issues or bottlenecks
• Stay updated with industry trends and propose improvements to backend architecture and development processes
• Participate in code reviews to maintain code quality and mentor junior developers
• Partner with DevOps engineers to deploy and maintain applications in production environments
• Provide technical guidance and support to team members as needed

Requirements

• Bachelor's or Master's degree in Computer Science, Software Engineering or a related field
• 5+ years of experience as a Full Stack Engineer developing scalable web applications, with strong proficiency in computer science fundamentals such as data structures and algorithms
• Proficiency in React, JavaScript and Python
• Experience with FastAPI, Flask or Django
• Knowledge of relational databases such as SQL Server, Snowflake and PostgreSQL
• Background in the Financial Industry or curiosity to learn and engage in Private Equity/Credit business domains
• Understanding of RESTful API design principles and experience building and consuming APIs
• Proficiency in Git and collaborative development workflows
• Strong problem-solving skills and ability to troubleshoot and debug complex backend issues
• Excellent communication and collaboration skills with the ability to work effectively in a team environment

Nice to have

• Familiarity with NoSQL databases like MongoDB or Redis
• Knowledge of Accounting or Advent Geneva
• Understanding of Data Engineering tools and platforms such as data pipelines and data lakes
• Experience with cloud platforms like AWS, Azure or Google Cloud Platform and containerization technologies like Docker or Kubernetes
• Experience in bank loans/leveraged loans, fixed-income products, CLOs, derivatives, ABS and CMBS products

We offer

• We gather like-minded people:
  • Engineering community of industry professionals
  • Friendly team and enjoyable working environment
  • Flexible schedule and opportunity to work remotely within Poland
  • Chance to work abroad for up to 60 days annually
  • Business-driven relocation opportunities
• We provide growth opportunities:
  • Outstanding career roadmap
  • Leadership development, career advising, soft skills, and well-being programs
  • Certification (GCP, Azure, AWS)
  • Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru
  • English classes
• We cover it all:
  • Stable income (Employment Contract or B2B)
  • Participation in the Employee Stock Purchase Plan
  • Benefits package (health insurance, multisport, shopping vouchers)
  • Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more
  • Referral bonuses
  • Corporate, social and well-being events
• Please, note:
  • The set of bonuses might vary based on the role you apply for - specifics will be discussed with our recruiter during the general interview.
  • We will reach out to selected candidates exclusively.

EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.