F5 Networks

Principal Software Development Engineer

F5 Networks
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1 month ago
Remote, United StatesStaff+

Base Salary

$226k - $338k/yr

Responsibilities

  • Design and implement robust, low-latency services and APIs for scalable multi-tenant architectures.
  • Develop and optimize forward and reverse proxies for performance and security.
  • Implement instrumentation, monitoring, alerting, and observability across services.
  • Use AI development tools and agentic frameworks to support coding, testing, and problem-solving.
  • Lead projects, guide architectural decisions, mentor junior developers, and collaborate with the broader team.
  • 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 developing both forward and reverse proxies is highly desirable.
  • Expertise in Go, proficiency in Python and/or TypeScript, knowledge of network protocols and concepts, and experience with monitoring and observability tools.
  • Hands-on experience with AI development tools and integrating AI assistance into development workflows; agentic framework and context engineering experience is desirable.
  • Public API design and engineering experience is beneficial.
  • Familiarity with LLMs, embeddings, RAG architectures, and prompt engineering is a plus.
  • Ability to lead projects with minimal guidance, solve complex problems, analyze systems, improve performance, and communicate technical concepts clearly.

Benefits

  • Annual base pay is $225,600.00-$338,400.00.
  • Potential incentive compensation, bonuses, restricted stock units, and benefits are available.
  • F5 offers reasonable accommodations and maintains an equal employment opportunity policy.

Categories

F5 Networks

About F5 Networks

5,001-10,000 employees

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.

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