Principal Software Development Engineer
F5 Networks1 month ago
Remote, United States or Seattle, WA, USAStaff+
Base Salary
$207k - $310k/yr
Responsibilities
- Lead the design and implementation of low-latency services and APIs for scalable multi-tenant architectures.
- Build and refine forward and reverse proxies for performance and security.
- Implement instrumentation, monitoring, alerting, and observability across services.
- Use AI development tools and agentic frameworks to accelerate coding, testing, and problem-solving.
- Lead architectural decisions and projects with minimal guidance while mentoring junior developers.
- Evaluate emerging technologies and methodologies to improve system architecture and development practices.
Requirements
- Proven experience developing in Go and building low-latency applications for multi-tenant B2B SaaS architectures.
- Experience with both forward and reverse proxy development is highly desirable.
- Expertise in Go, proficiency in Python and/or TypeScript, and understanding of network protocols and concepts.
- Experience with monitoring and observability tools and public API design and engineering.
- Hands-on experience with AI development tools, agentic frameworks, and context engineering for AI-assisted development is highly desirable.
- Familiarity with LLMs, embeddings, RAG architectures, and prompt engineering is a plus.
- Ability to lead projects, analyze complex systems, improve efficiency and performance, solve problems, and communicate technical ideas clearly.
Benefits
- Annual base pay is $206,800.00-$310,200.00, with possible incentive compensation, bonuses, restricted stock units, and benefits.
- Benefits information is available through F5’s careers benefits page.
Tech Stack
Categories
About F5 Networks
F5, Inc. builds application delivery and security products for enterprises, service providers, and governments, spanning on‑premises, cloud, and edge environments. It sells software, hardware appliances, and SaaS subscriptions for load balancing, WAF, API security, DDoS protection, and traffic management, with support services. Founded in 1996 and headquartered in Seattle, the public company (NASDAQ: FFIV) expanded its portfolio through acquisitions including NGINX and Shape Security.