Senior Security Software Engineer

We are looking for a Senior Security Software Engineer to implement the baseline Cedar policy library and policy authoring standard for our Enterprise Agent Development Platform. This production-grade cloud-native ecosystem enables engineering teams to define orchestrate deploy and observe AI agents at scale using LangGraph and Strands Agents on AWS AgentCore Runtime. Our goal is to reduce agent development from months to days while enforcing consistent security quality and governance standards. Responsibilities Implement the baseline Cedar policy library and policy authoring standard for the platform Author and test Cedar policies governing agent access control Configure AWS AgentCore Policy LOG_ONLY and ENFORCE modes for staged policy rollout Build Python-based tooling to validate policy definitions Map MS Entra claims to platform policy attributes Design parameter-level access control patterns for agent tooling Establish governance standards for policy authoring across engineering teams Collaborate with platform and security teams to enforce consistent access control practices Requirements 3+ years of experience in security engineering or backend engineering Expertise in Cedar policy language including authoring and testing Hands-on experience with Open Policy Agent (OPA) Knowledge of AWS AgentCore Policy LOG_ONLY and ENFORCE modes Proficiency in Python for policy validation tooling Familiarity with MS Entra claims mapping and parameter-level access control patterns Skills in identity provider integration with Entra Okta and Cognito Understanding of policy definition in any ABAC or RBAC system Nice to have Familiarity with LangGraph tool invocation patterns Knowledge of AWS AgentCore Gateway integration We offer We gather like-minded people: Top tech minds driving innovation in AI, cloud and digital platform modernization Supportive team and agile, startup-like culture Hybrid by design mode and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities Thought leadership, mentoring, soft skills and well-being programs We cover it all: Stable pay Participation in the Employee Stock Purchase Plan with a 15% discount Benefits package (health insurance, multisport, shopping vouchers) Referral bonuses up to $2,000 Offices featuring entertainment and relaxation zones, table tennis and football, free snacks, coffee and more Corporate, social and well-being events Please, note: Benefits listed above are available to employees only We are open for working with Contractors. Terms of B2B cooperation agreements are agreed individually We will reach out to selected candidates exclusively #J-18808-Ljbffr EPAM Systems