Senior Python Engineer — AI-Powered Finance Platform

EPAM Systems; Argentina; Remote; ARS 2,232,000 - 3,571,000; Full time

Benefits offered by this job

Healthcare benefits

Paid time off

Upskilling & certifications

Global career opportunities

Job summary

EPAM Systems, Inc. seeks a Lead Python Engineer to architect and deliver a next-generation AI-powered financial assistant platform, guiding a small, high-capability team through end-to-end implementation and product direction.

You will own backend services, design system architecture balancing quality, latency, and cost, and build production-grade APIs using Python and FastAPI with strong testing, observability, and security controls for sensitive data.

Qualifications

• 5+ years of professional software engineering experience with Python.
• Strong technical leadership and mentoring experience in senior engineering teams.
• Proven system design experience for production backend services and APIs.
• Deep FastAPI experience or strong experience with comparable Python web frameworks.
• Hands-on experience with AI-DLC and Gen AI assisted development workflows.
• Strong Large Language Models (LLM) application experience, including prompt design and integration patterns.
• Strong AI security knowledge, including privacy, access control, prompt-injection risks, and guardrails.

Responsibilities

• Lead design and delivery of backend services for an AI-powered financial assistant.
• Define system architecture that balances quality, latency, reliability, and cost for AI features.
• Build production-grade APIs using Python and FastAPI with strong testing and observability.
• Implement LLM-powered workflows with robust safeguards, validation, and failure handling.
• Establish automated AI evaluations, test datasets, regression suites, and monitoring for model behavior.
• Harden applications with security controls for sensitive data, auditing, and access management.
• Collaborate with product and business users to refine requirements and ship iterative improvements.
• Drive code quality through reviews, standards, and maintainable engineering practices.

Skills

Python programming

Technical leadership

Mentoring

System design

FastAPI

AI/Gen AI workflows

LLM integration

Security best practices

English proficiency

Tools

FastAPI

AWS

Kubernetes

Terraform

ReactJS

Next.js

Job description

EPAM Systems, Inc. seeks a Lead Python Engineer to architect and deliver a next-generation AI-powered financial assistant platform, guiding a small, high-capability team through end-to-end implementation and product direction.

You will own backend services, design system architecture balancing quality, latency, and cost, and build production-grade APIs using Python and FastAPI with strong testing, observability, and security controls for sensitive data.