Lead Python Engineer (AI-Powered Financial Assistant)

We are seeking a Lead Python Engineer to build a next-generation AI-powered financial assistant platform, rapidly iterating on chat, reporting, and bespoke interfaces used in investment workflows. You will own end-to-end delivery in a small, highly capable team and help shape product direction.
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
Integrate AI-assisted programming and coding agents while critically validating generated code
Troubleshoot production issues with disciplined incident response and root-cause analysis
Guide technical decisions in a low-process environment and keep delivery momentum high
Requirements
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
Proven AI evaluation and quality engineering skills, including automated evals and regression testing
Strong AI security knowledge, including privacy, access control, prompt-injection risks, and guardrails
High autonomy and self-governance skills to deliver from vague requirements through implementation
Strong product judgment skills to identify edge cases and prioritize reliability and maintainability
Advanced English proficiency (C1, Advanced)
Nice to have
Amazon Web Services
Kubernetes
Terraform
ReactJS
Next.js
We offer
International projects with top brands
Work with global 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
EPAM is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, sexual orientation, gender identity or expression, disability, protected veteran status, or any other characteristic protected by applicable law.

Work arrangement
Yes