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# Senior Python Engineer (AI-Powered Financial Assistant)

- **Company:** EPAM Systems, Inc.
- **Location:** Newtown, PA, United States (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** AI Evaluation, Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Code Generation, Python (Programming Language), Regression Testing, Next.js, Software Engineering, Web Application Frameworks, ReactJS, Large Language Models, Generative AI, Fastapi, Kubernetes, Terraform
- **Published:** October 16, 2026
- **Apply:** https://arc.dev/remote-jobs/j/redirect/przbf9cwc5

## About the Role

* 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

## Description

* 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