We are looking for a Lead Python Backend Developer to build and evolve AI-enabled backend services for a cloud-native engagement platform. You will partner with product and engineering peers to deliver reliable integrations, scalable APIs, and production-ready AI features—apply to join us.

Responsibilities

Develop backend services primarily in Python to support core platform capabilities

Design scalable cloud-native services on AWS aligned with reliability and performance goals

Build and maintain REST APIs that integrate product features and external systems

Implement AI-powered features and integrate LLM capabilities into production services

Maintain and enhance existing C#/.NET components to ensure continuity and stability

Review code and drive technical design discussions to uphold engineering standards

Troubleshoot production issues and deliver timely fixes and preventive improvements

Collaborate with Product, QA, and Architecture teams to align delivery and requirements

Improve system performance, maintainability, and operational readiness

Contribute to technical documentation, best practices, and team knowledge sharing

Requirements

5+ years of commercial software development experience

5+ years of Python backend development experience

Working knowledge of C#/.NET for maintaining legacy services





Hands-on AWS Cloud experience building cloud-native applications

Strong REST API development experience for production systems

Solid SQL knowledge for data access and troubleshooting

Technical leadership experience guiding design and code quality

Agile development experience in cross-functional teams

Strong object-oriented design knowledge and design pattern skills

Strong Git and CI/CD workflow skills

Strong troubleshooting skills for production incidents

Upper-Intermediate English proficiency (B2)

Ability to collaborate effectively with distributed teams in a US time window

Nice to have

REST API design standards and API documentation practices

SQL performance tuning and query optimization

We offer

International projects with top brands

Work with integral 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

📌 Lead Python Backend Developer (Argentina)
🏢 EPAM Systems
📍 Argentina