Lead Python Engineer — AI-Driven Finance Assistant

EPAM Systems; México; Remote; MXN 700,000 - 1,100,000; Full time

Benefits offered by this job

Healthcare benefits

Paid time off

Upskilling and certification courses

Global career opportunities

Job summary

EPAM Systems, Inc. is hiring a Senior Python Engineer to build an AI-powered financial assistant platform. You will design and ship production-grade AI features end-to-end, using Python services and FastAPI to drive chat, reporting, and custom interfaces.

You will work with a small, autonomous team, defining scalable, secure architectures, and partnering with client stakeholders to validate requirements while continuously improving model quality, latency, and cost in production environments.

Qualifications

• 3+ years of professional software engineering experience with Python or similar languages.
• Strong hands-on experience with FastAPI or comparable Python web frameworks.
• Proven experience with forward deployed engineering in close partnership with clients.
• Demonstrated experience shipping LLM-based applications and Gen AI assisted development workflows.
• Experience with AI evaluation and quality engineering including automated evals and regression testing.
• Strong system design skills for scalable, reliable, secure services.
• High ownership and autonomy with ability to take loosely defined problems to production delivery.
• Strong product judgment with ability to gather requirements and identify edge cases.
• Strong quality mindset focused on reliability, maintainability, and observability.
• Strong security fundamentals for sensitive data including access control and privacy practices.

Responsibilities

• Design end-to-end AI-assisted product features from discovery through production release.
• Build Python services and APIs using FastAPI to power chat, reporting, and bespoke interfaces.
• Define system designs that address scale, reliability, security, and maintainability requirements.
• Partner with client stakeholders to gather requirements and validate solutions.
• Develop evaluation frameworks for LLM quality, including test datasets and automated regressions.
• Implement monitoring and failure analysis workflows to detect and diagnose AI behavior in production.
• Harden AI applications with security controls against privacy risks and prompt-injection attacks.
• Optimize AI solutions for quality, latency, reliability, and cost in real-world usage.
• Review, test, and validate AI-generated code from coding agents and AI-assisted tools.
• Ship iterative improvements quickly based on feedback while preserving a high quality bar.

Skills

Python

FastAPI

LLM Integration

API development

System design

Security

Client collaboration

Tools

AWS

Kubernetes

Terraform

ReactJS

Next.js

Job description

EPAM Systems, Inc. is hiring a Senior Python Engineer to build an AI-powered financial assistant platform. You will design and ship production-grade AI features end-to-end, using Python services and FastAPI to drive chat, reporting, and custom interfaces.

You will work with a small, autonomous team, defining scalable, secure architectures, and partnering with client stakeholders to validate requirements while continuously improving model quality, latency, and cost in production environments.