Company Description : Mystinex Private Limited is a cybersecurity company dedicated to protecting digital infrastructure for businesses through advanced threat analysis and vulnerability assessment. The organization designs and delivers information security solutions that help clients safeguard critical systems and data. Mystinex focuses on building robust, scalable technologies that detect, prevent, and respond to evolving cyber threats. Team members collaborate across disciplines to create secure, high-performance software and services that support modern enterprise environments.

Role Description : The Systems Software Engineer — C++/Rust, Windows & Backend role is a full time remote position responsible for designing, implementing, and optimizing low-level and backend systems that support Mystinex’s cybersecurity solutions. Day-to-day work includes developing high-performance software in C++ and Rust on Windows platforms, building backend services and APIs, and integrating security features into core system components. The role involves debugging complex issues,



profiling and improving system performance, and collaborating with security analysts to translate threat models into resilient software architectures. The engineer will also participate in code reviews, maintain documentation, and work closely with cross-functional teams to deliver reliable, secure infrastructure for customer environments.

Key Responsibilities
- Design and develop Windows endpoint services and client-side components using C++/Rust.
- Design and develop backend services and APIs for endpoint telemetry ingestion, processing, storage, and communication with the MDR platform.
- Develop multi-threaded and concurrent applications with focus on performance, reliability, and resource efficiency.
- Work with Win32 APIs and Windows subsystems for process, thread, service, IPC, registry, filesystem, and system-level integration.
- Design and implement HTTP, WebSocket, and secure communication prot

📌 Systems Software Engineer — C++/Rust, Backend (Meerut)
🏢 MYSTINEX
📍 Meerut