Software Engineer I

United States of America– Minnesota – Minneapolis💼 Full-time💰 $100,000–$100,000🗓 2026-09-14 → 2026-09-26

Core

Build kernel-mode drivers and Endpoint Security extensions for Windows, macOS, and Linux to detect and stop data loss and insider risk.

Role type

Junior IC systems software engineer (kernel drivers)

Builds

Endpoint sensor agents running continuously on corporate machines

Domain

Cybersecurity / Endpoint Data Protection

Deliverable

production ML models | product features

Required skills

C++, systems programming, memory management, concurrency, kernel-mode development, OS boundary programming

Preferred skills

Rust, Swift, eBPF, network-layer monitoring, data loss prevention concepts, enterprise software shipping

Technologies

C++, Windows Filtering Platform, Linux kernel, macOS, eBPF

Responsibilities

Implement features and fixes within multi-platform agents, develop kernel-mode components and security extensions, integrate agent capabilities with backend workflows, build observability and stability into production components, reason about adversarial behavior and insider risk, review and defend code including AI-assisted drafts

Seniority

Junior, hands-on IC with mentorship

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About Mimecast

Relentless protection. Resilient world. Mimecast was born in 2003 with a focus on delivering relentless protection. Each day, we take on cyber disruption for our tens of thousands of customers around the globe; always putting them first, and never giving up on tackling their biggest security challenges together. We continuously invest to thoughtfully integrate brand protection, security awareness training, web security, compliance, and other essential capabilities. Mimecast is here to help protect large and small organizations from malicious activity, human error, and technology failure — and