Lead Python Engineer (AI-Powered Financial Assistant)

EPAM Systems; Colombia; Remote; COP 120,000,000 - 180,000,000; Full time

Job summary

EPAM Systems, Inc. seeks a Lead Python Engineer to build an AI-powered financial assistant platform. You will own end-to-end delivery in a small, capable team and help shape product direction.

You will design backend services, implement production APIs with Python and FastAPI, and drive robust AI workflows with strong testing, security, and observability. This role offers international projects and growth opportunities.

Qualifications

• 5+ years of professional software engineering experience with Python.
• Strong technical leadership and mentoring in senior teams.
• Proven system design experience for production backend services and APIs.
• Deep FastAPI experience or equivalent Python web framework experience.
• Hands-on AI-DLC and GenAI development workflows.
• Strong Large Language Models (LLM) application experience, incl. prompt design.
• Proven AI evaluation and quality engineering skills with automated evals.
• Strong AI security knowledge: privacy, access control, guardrails.
• High autonomy and self-governance to deliver from vague requirements.
• Advanced English proficiency (C1).

Responsibilities

• Lead design and delivery of backend services for an AI-powered financial assistant.
• Define architecture balancing 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 safeguards, validation, and failure handling.
• Establish automated AI evaluations, test datasets, regression suites, and monitoring.
• 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 validating generated code.
• Troubleshoot production issues with incident response and root-cause analysis.
• Guide technical decisions in a low-process environment to keep momentum.

Skills

Python

FastAPI

LLM / GenAI

API design

System design

Leadership

AI security

English (Advanced)

Incident response

Tools

AWS

Kubernetes

Terraform

ReactJS

Next.js

Job description

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.ResponsibilitiesLead design and delivery of backend services for an AI-powered financial assistantDefine system architecture that balances quality, latency, reliability, and cost for AI featuresBuild production-grade APIs using Python and FastAPI with strong testing and observabilityImplement LLM-powered workflows with robust safeguards, validation, and failure handlingEstablish automated AI evaluations, test datasets, regression suites, and monitoring for model behaviorHarden applications with security controls for sensitive data, auditing, and access managementCollaborate with product and business users to refine requirements and ship iterative improvementsDrive code quality through reviews, standards, and maintainable engineering practicesIntegrate AI-assisted programming and coding agents while critically validating generated codeTroubleshoot production issues with disciplined incident response and root-cause analysisGuide technical decisions in a low-process environment and keep delivery momentum highRequirements5+ years of professional software engineering experience with PythonStrong technical leadership and mentoring experience in senior engineering teamsProven system design experience for production backend services and APIsDeep FastAPI experience or strong experience with comparable Python web frameworksHands-on experience with AI-DLC and Gen AI assisted development workflowsStrong Large Language Models (LLM) application experience, including prompt design and integration patternsProven AI evaluation and quality engineering skills, including automated evals and regression testingStrong AI security knowledge, including privacy, access control, prompt-injection risks, and guardrailsHigh autonomy and self-governance skills to deliver from vague requirements through implementationStrong product judgment skills to identify edge cases and prioritize reliability and maintainabilityAdvanced English proficiency (C1, Advanced)Nice to haveAmazon Web ServicesKubernetesTerraformReactJSNext.jsWe offerInternational projects with top brandsWork with global teams of highly skilled, diverse peersHealthcare benefitsEmployee financial programsPaid time off and sick leaveUpskilling, reskilling and certification coursesUnlimited access to the LinkedIn Learning library and 22,000+ coursesGlobal career opportunitiesVolunteer and community involvement opportunitiesEPAM Employee GroupsAward-winning culture recognized by Glassdoor, Newsweek and LinkedInEPAM 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.