Job Description

About The Role

We're hiring a Senior Software Engineer to build and maintain the core of our endpoint security agent — the core runtime and its pluggable security-module framework, built entirely in Go — along with the on-premise management and telemetry-relay components it communicates with over gRPC. You'll also work on the kernel-level components that hook into the OS, which are written in C/C++ as is standard for driver-level development. This is a deeply hands-on systems engineering role, working close to the OS, network stack, kernel-level hooks, and security primitives (mTLS, certificates, secure channels).

Key Responsibilities
- Design and implement features across the core agent runtime and its pluggable security-module framework, entirely in Go.
- Develop and maintain kernel-level components (e.g., Windows kernel drivers/minifilters, Linux kernel modules/eBPF) used for real-time monitoring, hooking, or enforcement, ensuring they are secure and don't destabilize the host OS.




- Build and maintain gRPC services/clients for the control-plane channel between the agent and its on-premise management component, and the data-plane channel to the telemetry relay component.
- Implement mTLS-based authentication, certificate handling, and secure channel setup at the agent level.
- Build reliable local buffering/queuing (e.g., disk-backed queue, WAL) so telemetry survives relay or network downtime without data loss.
- Implement security-module binary distribution, independent versioning, staged/canary rollout, and rollback mechanisms.
- Design for resource efficiency — CPU, RAM, disk, network — so multiple security modules can run concurrently on constrained endpoints without degrading host performance.
- Build failure isolation between the core agent runtime and individual security modules so one module crashing doesn't take down the whole agent.
- Debug and optimize performance and stability issues across Windows and/or Linux endpoints in productio

📌 Principal Software Engineer- Agent Developer (Delhi)
🏢 SISA
📍 Delhi