Senior Principal Software Engineer

We are Progress (Nasdaq: PRGS) - the trusted provider of software that enables our customers to develop, deploy and manage responsible, AI-powered applications and experience with agility and ease.
We’re proud to have a diverse, global team where we value the individual and enrich our culture by considering varied perspectives because we believe people power progress. Join us as a Software Engineer, Senior Principal in our LoadMaster engineering team and help us do what we do best: propelling business forward. Know more about us.
Overview: 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
Observability practices across complex systems
If this sounds like you and fits your experience and career goals, we’d be happy to chat. What we offer in return is the opportunity to experience a great company culture with wonderful colleagues to learn from and collaborate with, and also to enjoy:
Compensation
Competitive remuneration package
Employee Stock Purchase Plan Enrolment
Vacation, Family, and Health
30 days of earned leave
An extra day off for your birthday
Various other leaves like marriage leave, casual leave, maternity leave, and paternity leave
Premium Group Medical Insurance for employees and five dependents, personal accident insurance coverage, and life insurance coverage
Professional development reimbursement

Skills
Linux