Senior Principal Software Engineer

This senior individual contributor role blends deep, hands-on software development with sustained technical leadership and ownership of critical LoadMaster areas.

You will act as a technical authority across complex subsystems and architectural domains while staying actively involved in design, implementation, and complex problem solving.

Your focus is the ongoing evolution, performance, security, and long-term maintainability of the LoadMaster platform.

In this role you will:

• Own engineering for critical functional and architectural areas of LoadMaster

• Design, implement, and deliver core features and platform components

• Serve as the technical authority for complex subsystems and problem areas

• Drive performance, scalability, security, and maintainability improvements

• Lead deep problem analysis and resolution across the stack

• Guide engineering requirements and architectural impact assessments

• Lead proofs of concept and prototypes to validate designs and de-risk approaches

• Provide ongoing technical guidance to globally distributed teams

• Mentor senior engineers and elevate engineering practices

• Collaborate with product, engineering leadership, and peers on roadmap and trade-offs

• Champion high-quality code, reviews, and continuous improvement

• Contribute to cross-team standards, tooling, and automation

Your background:

• Extensive experience delivering complex, high-performance Linux systems

• Expert C systems programming with a focus on low-latency TCP/IP networking

• Deep knowledge of Linux internals: networking stack, memory, kernel–userspace

• Proven performance engineering: profiling, bottleneck analysis, optimization

• Strong security background: threat modeling, cryptography, secure design

• Advanced Bash and Linux tooling for automation and diagnostics

• Solid understanding of CPU, memory, NUMA, and I/O for optimization

• Experience mentoring senior engineers and leading cross-team impact

It will be beneficial if you have:

• Expertise in authentication, WAF, load balancing, proxy architectures, and TLS

• Experience with embedded Linux and hardware acceleration

• Background in distributed systems across cloud or virtualized environments