Senior Security & Test Software Engineer

EPAM Systems

Remote · Lithuania, LatviaSalary not disclosedfull-timeEPAM Systems Careers (remote abroad)

We are looking for a Senior Security & Test Software 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, providing a single-file developer experience where the platform handles runtime, tooling, observability and deployment automatically.

Responsibilities

Own security, functional and performance test suites for the A2A gateway
Test Cedar policy enforcement correctness across LOG_ONLY and ENFORCE modes
Conduct trust model gap analysis for non-AgentCore A2A agents
Design and automate security and functional test suites using Python
Perform performance testing and benchmarking of cloud APIs using k6 and Locust
Validate Cedar policy correctness including permit/deny logic and forbid-overrides-permit behavior
Apply agentic AI and LLM threat modeling practices to identify risks such as excessive agency and tool parameter exfiltration
Enforce OAuth 2.0 and JWT validation mechanisms for agent channel token scope
Partner with engineering teams to embed consistent security and quality standards across the Agent Development Platform

Languages

Work format: Remote
Seniority: Senior
Posted: 29 Sept 2026
Last verified: In the last 5 days

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