Senior Python Developer

Description

Summary: Seeking a Senior Python Developer for enterprise platform engineering, focusing on brownfield modernization and AWS serverless infrastructure for internal tooling. Highlights: 1. Design, build, and maintain AWS Lambda services and API Gateway using Python 2. Lead CI/CD migration to GitHub Actions and manage IaC with Terraform 3. Execute brownfield refactors, service decommissions, and migrations We are seeking a **Senior Python Developer** to join our team working on enterprise platform engineering initiatives. This role focuses on brownfield modernization, security remediation, and AWS serverless infrastructure supporting internal tooling and integrations across the vehicle lifecycle domain. EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi\-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting\-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential. **Responsibilities** * Design, build, and maintain AWS Lambda services and API Gateway endpoints using Python and Boto3 * Lead the CI/CD migration from legacy pipelines to GitHub Actions workflows * Manage infrastructure as code using Terraform (primary) and Serverless frameworks * Execute brownfield refactors, service decommissions, and migrations — e.g., OAuth migrations, WAF block\-mode enablement, SAST/SCA remediations * Configure and tune AWS WAF rules; resolve security findings surfaced by SAST and SCA tooling * Integrate internal and third\-party systems via REST APIs (e.g., OAuth client credentials flows) * Automate operational workflows and support agentic platform initiatives (n8n, LangChain, or equivalent orchestration tools are a plus) * Collaborate with the SRE Consultant on telemetry gaps and Lambda\-based data collection automation * Work in a spec\-driven SDLC * Develop AI\-driven improvements to design, delivery, and triage practices * Evaluate new tooling and solutions as candidates for enterprise\-level AI enablement offerings **Requirements** * 3\+ years of Python development with a focus on AWS Lambda and API Gateway in production environments * Proficiency in Boto3 across IAM, Secrets Manager, and SSM, as well as Lambda, API Gateway, CloudWatch, and WAF * Expertise in Terraform for IaC in production, with the ability to write, refactor, and review modules * Background in Serverless Framework, including maintaining and migrating legacy stacks * Knowledge of AWS WAF rule configuration, block\-mode enablement, and incident response * Familiarity with security tooling such as SAST and SCA, and exposure to a structured compliance programme * Brownfield mindset — proven track record of migrations, decommissions, and refactors rather than greenfield builds * Proficient communication skills in English (B2 level or higher) **Nice to have** Hands\-on experience with GitHub Actions for CI/CD pipeline authoring; comfortable being on the leading edge of a CI/CD functions* GHA migration * Familiarity with ServiceNow * Understanding of Snowflake **We offer** * Connectivity Bonus (25,000 ARS are paid with a salary receipt at the end of each month as a non\-wages concept). * Medicina Prepaga (It covers the collaborator and direct family group). * Paternity Leave (Two additional days are added to what is established by law, total of 4 days). * Discounts card. * English Training (English lessons, twice per week). * Training Program (Access to multiple customized training plans according to the needs of each role within the company). * Marriage bonus (The company doubles the allowance established by law that ANSES offers). * Referral Program (Referral bonus is paid when the referral of a collaborator joins the Company). * External Agreements and Discounts. * Vacations: 14 calendar days a year *By applying to our role, you are agreeing that your personal data may be used as in set out in EPAM´s Privacy Notice and Policy.*