Lead Python Backend Engineer

We are looking for a Lead Python Backend Engineer to join our 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. The initiative spans agent framework design, runtime architecture, marketplace integration, CI/CD automation, and enterprise-grade observability — reducing agent development from months to days while enforcing consistent security, quality, and governance standards. Responsibilities Integrate AgentCore Memory into platform agent templates and helper librariesImplement write-on-turn functionality to store session eventsImplement retrieve-on-turn functionality to fetch relevant contextDesign and build memory namespace architecture for per-agent isolation and per-user scopingDevelop Python helper libraries to support memory-enabled agents across the platformEnable memory activation through configuration rather than custom code in agent templatesWork with AWS AgentCore Memory API to create, query, update, and delete memory recordsBuild and maintain API integrations for stateful servicesManage session persistence and context continuity across agent interactions Requirements 7+ years of backend engineering experience with AI/ML systemsHands-on experience integrating agent memory in a production agentic AI project, such as AWS AgentCore Memory API (write-on-turn/retrieve-on-turn), memory namespace design, or agent template memory configurationExpertise in Python SDK developmentSkills in API integration for stateful servicesProficiency in session management and context persistenceEnglish proficiency at B2 level or higher Nice to have Familiarity with AWS AgentCore Memory SDK usageKnowledge of LangChain memory integrationBackground in agent framework development (LangGraph, Crew)Understanding of conversational AI context handling 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.