Lead Python Developer, Backend

EPAM Systems, Inc.; Colombia; A distancia; COP 120.000.000 - 210.000.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Healthcare benefits

Paid time off

Learning and development

Global career opportunities

Descripción de la vacante

EPAM Systems, Inc. is seeking a Lead Python Backend Developer to deliver secure, scalable API services and orchestrate AI-driven workflows for LLM integrations.

You will own API contracts, RAG orchestration, and reliability across distributed systems while partnering with adjacent teams to maintain quality. You will design and operate backend services, build end-to-end RAG pipelines, wire agent tools, and enforce secure coding practices.

Formación

• 5+ years of backend engineering experience in microservices and distributed systems.
• Proficient in Python and RESTful API design principles.

Responsabilidades

• Design and deliver backend API services plus LLM orchestration layers.
• Implement and operate end-to-end RAG pipelines (ingestion, chunking, embedding, retrieval).
• Wire up agent tools using orchestration frameworks.
• Ensure security, privacy, observability, and test coverage across backend workflows.
• Own API contracts and end-to-end service reliability across distributed systems.
• Collaborate with frontend engineers, data engineers and infra teams to ship cohesive solutions.
• Integrate LLMs with robust systems engineering, evaluation, observability, and cost awareness.

Conocimientos

Backend engineering

Microservices

Distributed systems

API design

English proficiency

Herramientas

Python

AWS

Docker

ECS

EKS

LangChain

LlamaIndex

LangGraph

LangSmith

Langfuse

Arize

Descripción del empleo

We are seeking a Lead Python Backend Developer to deliver secure, scalable AI-driven API services and agentic workflows for LLM integration. You will own API contracts, RAG orchestration, and service reliability across distributed systems, partnering with adjacent teams to keep quality high.ResponsibilitiesDesign and deliver backend API services plus LLM orchestration layersImplement and operate end-to-end RAG pipelines, covering document ingestion, chunking, embedding, and retrieval optimizationDevelop and wire up agent tools using orchestration frameworksEnsure security, privacy, enterprise-grade observability, and test coverage across all backend workflowsDrive architecture choices and help shape engineering standards within the podCollaborate with frontend engineers, data engineers, and infrastructure teams to ship cohesive solutionsOwn API contracts and end-to-end service reliability, ensuring AI edge cases fail gracefullyIntegrate LLMs with rigorous systems engineering, including evaluation, observability, fallback handling, and cost awarenessBuild dependable, reusable orchestration frameworks and logic for downstream developer consumptionRequirementsProven backend engineering background with 5+ years of experience in microservices and distributed systemsHigh proficiency in Python for performant backend services and cloud-native APIsHands-on familiarity with AWS, Docker, and ECS/EKSSolid understanding of RESTful APIs and API design principlesStrong foundation in secure coding practices with clear auth/authz fundamentalsEnglish proficiency at B2 (Upper-Intermediate) level or higherNice to haveProduction experience with AI SDKs such as OpenAI, Anthropic/Claude, AWS Bedrock, or equivalentPractical exposure to vector databases (Amazon Kendra, OpenSearch), embedding strategies, and retrieval systemsHands-on work with LangChain, LlamaIndex, or LangGraphFamiliarity with AI evaluation tooling or real-time APM such as LangSmith, Langfuse, or ArizeSkills in React and TypeScriptExperience deploying to EKS environments at scaleUnderstanding of agent interoperability patterns (MCP)Knowledge of identity and security domains (IAM, CIAM)Familiarity with secondary languages such as Java, Node.js, or GoWe 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.