Senior Python Engineer (AI-Powered Financial Assistant)

EPAM Systems; Brasil; Remote; BRL 120,000 - 180,000; Full time

Benefits offered by this job

Healthcare benefits

Paid time off & sick leave

Upskilling & certification courses

LinkedIn Learning access

Job summary

EPAM Systems, Inc. is seeking a Senior Python Engineer to build an AI-powered financial assistant platform with chat, reporting, and custom interfaces for investment workflows.

You will work in a compact, autonomous team to design, implement, and deliver production-grade AI features end-to-end. You will ship Python services and APIs with FastAPI, address scale and security, collaborate with client stakeholders, and define evaluation frameworks for LLM quality.

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 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.

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.
• Review, test, and validate AI-generated code from coding agents and AI-assisted tools.

Skills

Python

FastAPI

LLM/Gen AI

System design

Security

Reliability/Observability

Code quality

English proficiency

Product judgment

Ownership/Autonomy

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.ResponsibilitiesDesign end-to-end AI-assisted product features from discovery through production releaseBuild Python services and APIs using FastAPI to power chat, reporting, and bespoke interfacesDefine system designs that address scale, reliability, security, and maintainability requirementsPartner with sophisticated client stakeholders to gather requirements and validate solutionsDevelop evaluation frameworks for LLM quality, including test datasets and automated regressionsImplement monitoring and failure analysis workflows to detect and diagnose AI behavior in productionHarden AI applications with security controls against privacy risks and prompt-injection attacksOptimize AI solutions for quality, latency, reliability, and cost in real-world usageReview, test, and validate AI-generated code from coding agents and AI-assisted toolsShip iterative improvements quickly based on feedback while preserving a high quality barRequirements3+ years of professional software engineering experience with Python or similar languagesStrong hands-on experience with FastAPI or comparable Python web frameworksProven experience with forward deployed engineering in close partnership with clientsDemonstrated experience shipping LLM-based applications and Gen AI assisted development workflowsExperience with AI evaluation and quality engineering including automated evals and regression testingStrong system design skills for scalable, reliable, secure servicesHigh ownership and autonomy with ability to take loosely defined problems to production deliveryStrong product judgment with ability to gather requirements and identify edge casesStrong quality mindset focused on reliability, maintainability, and observabilityStrong security fundamentals for sensitive data including access control and privacy practicesStrong optimization skills across latency, reliability, cost, and model quality trade-offsStrong collaboration and communication skills in low-formality startup-like environmentsAdvanced English proficiency (C1, Advanced)Nice to haveAmazon Web Services experienceKubernetes experienceTerraform experienceReactJS experienceNext.js experienceWe 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.