Senior Python Engineer (AI-Powered Financial Assistant)

EPAM Systems Inc; United States; Remote; USD 140,000 - 190,000; Full time

Job summary

EPAM Systems Inc. seeks a Senior Python Engineer to build an AI-powered financial assistant platform with chat, reporting, and tailored interfaces. You will work in a small, autonomous team delivering production-grade features end-to-end.

Responsibilities include designing end-to-end AI features, building FastAPI services, ensuring security, reliability, and observability, and collaborating with clients to validate solutions and iterate quickly.

Qualifications

• 3+ years of professional software engineering experience with Python.

Responsibilities

• Design end-to-end AI-assisted product features from discovery through production release.

Skills

Python

FastAPI

LLM/Gen AI

System design

Client collaboration

English proficiency

Tools

AWS

Kubernetes

Terraform

ReactJS

Next.js

Job description

We are seeking a Senior Python Engineer to build a next-generation AI-powered financial assistant platform that brings chat, reporting, and tailored interfaces into investment workflows. You will work in a small, highly competent team with high autonomy to design and deliver production-grade AI features end-to-end.

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 sophisticated 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

Requirements

• 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
• Strong optimization skills across latency, reliability, cost, and model quality trade-offs
• Strong collaboration and communication skills in low-formality startup-like environments
• Advanced English proficiency (C1, Advanced)

Nice to have

• Amazon Web Services experience
• Kubernetes experience
• Terraform experience
• ReactJS experience
• Next.js experience