About The Role

We build a distributed, agent-based endpoint security platform for the payment ecosystem, combining an endpoint agent (a core runtime plus pluggable security modules, built entirely in Go), an on-premise management component deployed at the customer site, a local telemetry relay component, and a cloud backend. Kernel-level components that hook into the OS are written in C/C++, as is standard for driver-level development. We're looking for a Senior/Principal Architect to own end-to-end architecture across this stack — from the control-plane protocol on the endpoint, through on-premise components, to secure egress into the cloud backend. This is a hands-on architecture role: you will be expected to review code and low-level design, not just produce diagrams.

Key Responsibilities

Define the architecture for kernel-level components on the endpoint (drivers/kernel modules used for real-time monitoring, hooking, or enforcement), including their interaction with and isolation from the user-mode agent runtime and its modules.




Own architectural decisions across the full platform: the endpoint agent (core runtime + pluggable security modules), the on-premise management component, the on-premise telemetry relay component, and the cloud backend.
Define and evolve the control-plane (gRPC/Protobuf) and data-plane transport strategy between the endpoint agent, the on-premise management component, and the telemetry relay component.
Own version compatibility strategy across independently-versioned components (agent, core runtime, modules, management component, cloud backend).
Design secure, outbound-only, multi-tenant deployment topology — mTLS and certificate lifecycle management, IPSec/VPN egress design — suitable for PCI-regulated payment industry clients.
Own the client-facing security architecture narrative: per-hop network/port/protocol documentation, PCI-DSS scoping discussions, and direct engagement with client InfoSec/audit teams.
Architect the security-mo

📌 Senior Software- Security Agent Architect (Mumbai)
🏢 SISA
📍 Mumbai