Senior Python / LangGraph Engineer

We are looking for a Senior Python / LangGraph Engineer to join the team building an Enterprise Agent Development Platform — a production-grade, cloud-native ecosystem that enables engineering teams to define, orchestrate, deploy, and observe AI agents at scale. The platform standardizes agent development across the organization using LangGraph and Strands Agents on AWS AgentCore Runtime, providing a single-file developer experience where the platform handles runtime, tooling, observability, and deployment automatically. Responsibilities Design and implement Python-based LangGraph nodes, edges, and graphs for agent orchestration deliveryBuild checkpointing mechanisms using SQLite, Redis, and Postgres checkpointers within LangGraphDevelop human-in-the-loop (HITL) workflows to support controlled agent decision pointsImplement retry, timeout, and fallback patterns to ensure reliable orchestration behaviorIntegrate OpenTelemetry tracing across orchestration steps for full pipeline observabilityCollaborate with the Development framework team to standardize LangGraph orchestration practicesContribute to the reliability and scalability of agent workflows deployed on AWS AgentCore RuntimeSupport the evolution of the platform's single-file developer experience for agent builders Requirements 5+ years of experience in Python developmentExpertise in LangGraph or LangChain agent orchestrationProficiency in async Python (asyncio)Skills in Python-based LangGraph node, edge, and graph constructionFamiliarity with checkpointing approaches using SQLite, Redis, and Postgres checkpointersBackground in HITL workflow implementationKnowledge of retry, timeout, and fallback patterns in LangGraphUnderstanding of OpenTelemetry tracing across orchestration steps Nice to have Familiarity with AWS Bedrock integrationSkills in multi-agent workflow testingKnowledge of LangSmith trace visualization We offer We gather like-minded people:Top tech minds driving innovation in AI, cloud and digital platform modernizationSupportive team and agile, startup-like cultureHybrid by design mode and opportunity to work remotely within PolandChance to work abroad for up to 60 days annuallyBusiness-driven relocation opportunitiesWe provide growth opportunities:Career development programsThought leadership, mentoring, soft skills and well-being programsCertification (Anthropic, Gemini, GCP, Azure, AWS)English classesWe cover it all:Stable payParticipation in the Employee Stock Purchase Plan with a 15% discountBenefits package (health insurance, multisport, shopping vouchers)Referral bonuses up to $2,000Offices featuring entertainment and relaxation zones, table tennis and football, free snacks, coffee and moreCorporate, social and well-being eventsPlease, note:Benefits listed above are available to employees onlyWe are open for working with Contractors. Terms of B2B cooperation agreements are agreed individuallyWe will reach out to selected candidates exclusively EPAM is global leader in AI transformation engineering and integrated consulting, serving Forbes Global 2000 companies and ambitious startups. With over thirty years of expertise in custom software, product and platform engineering, we empower our clients to become AI-Native enterprises, driving measurable value from innovation and digital investments.