Principal AI Engineer
Seattle, OR - USA
Job Summary
At F5 we strive to bring a better digital world to life. Our teams empower organizations across the globe to create secure and run applications that enhance how we experience our evolving digital world. We are passionate about cybersecurity from protecting consumers from fraud to enabling companies to focus on innovation.
Everything we do centers around people. That means we obsess over how to make the lives of our customers and their customers better. And it means we prioritize a diverse F5 community where each individual can thrive.
Role Summary
F5 Digital is building an enterprise-scale Agentic AI platform to enable secure observable and production-grade AI agents across the organization. We are seeking a Principal Software Development Engineer to serve as the technical authority and hands-on architect for high-code agent development orchestration frameworks and enterprise AI integration during the Gemini rollout.
This is a deeply technical individual contributor role. The Principal Engineer will design and implement scalable agentic systems establish engineering standards for AI workflows and enable engineering teams to build production-ready agents using Gemini Vertex AI and internal AI infrastructure.
The ideal candidate has strong distributed systems expertise deep familiarity with LLM architectures and agent frameworks and the ability to translate AI theory into secure production-grade implementations.
Key Responsibilities:
Agentic Architecture & Orchestration
Design and implement enterprise-grade agent orchestration frameworks supporting tool use memory RAG agentic workflows and automation.
Establish patterns for multi-agent collaboration event-driven execution and workflow chaining across enterprise systems.
Define standards for agent lifecycle management state persistence and context engineering.
Gemini & Vertex AI Integration
Lead technical integration of Gemini models via Vertex AI ensuring secure scalable API consumption and proper model routing.
Develop internal SDKs abstractions and reusable components to standardize Gemini usage across F5 teams.
Optimize prompt engineering token efficiency grounding strategies and structured output patterns.
High-Code Agent Enablement
Build reference implementations and reusable frameworks for high-code agents in Java Python Go or TypeScript.
Establish secure integration patterns for agents interacting with Salesforce Snowflake SharePoint ServiceNow and internal APIs.
Drive best practices for MCP (Model Context Protocol) server development and secure API mediation.
Observability Safety & Governance
Implement logging tracing telemetry and evaluation pipelines for agent performance and reliability.
Establish guardrails including input/output validation hallucination mitigation prompt injection defenses and policy enforcement.
Partner with Security to ensure secure data handling RBAC enforcement and compliance alignment.
Developer Enablement & Technical Leadership
Support engineering teams adopting Gemini Code Assist CLI workflows and internal AI development platforms.
Create technical documentation internal libraries and code samples for no-code low-code and pro-code agent builders.
Provide architectural review and guidance for AI-enabled applications across F5.
Performance & Scalability
Optimize inference latency parallelization and cost management strategies across agent workflows.
Implement caching strategies streaming responses and batching techniques to improve throughput and reliability.
Evaluate and benchmark agent/model performance across different workloads.
Required Qualifications
10 years of experience in software engineering with significant experience in distributed systems and backend architecture.
Deep hands-on coding expertise in Python and at least one of: Go Java or TypeScript.
Production experience with LLM-based systems including prompt engineering tool calling RAG embeddings and agent frameworks.
Experience with Vertex AI Gemini APIs OpenAI APIs or similar enterprise AI platforms.
Strong understanding of API design microservices Kubernetes and cloud-native architectures.
Experience building or integrating orchestration frameworks (e.g. LangChain LlamaIndex custom orchestration layers).
Familiarity with vector databases embedding pipelines and retrieval strategies.
Strong understanding of authentication authorization and enterprise security patterns.
Proven ability to build reusable platforms not point solutions.
Preferred Qualifications
Experience building multi-agent systems or autonomous workflow engines.
Experience with model evaluation pipelines and AI quality metrics.
Familiarity with structured output enforcement (JSON schemas function calling).
Experience working with enterprise data systems such as Snowflake Salesforce ServiceNow SharePoint.
Knowledge of cost modeling and inference optimization techniques.
Experience contributing to internal developer platforms or SDK ecosystems.
Background in AI safety red-teaming or model robustness evaluation.
What Success Looks Like:
A successful Principal Software Development Engineer in this role will:
Deliver a secure scalable orchestration layer for enterprise agents.
Enable engineering teams to build production-grade high-code agents with consistent architecture patterns.
Establish strong observability evaluation and safety controls for AI-driven workflows.
Accelerate AI agents rollout by providing reusable integrations SDKs and reference implementations.
Serve as the technical authority for enterprise agentic AI engineering at F5.
Impact
This role will directly shape how F5 builds and scales agentic AI across engineering sales support finance and product teams.
You will define the technical foundation that enables no-code low-code and pro-code AI development while ensuring enterprise-grade reliability governance and security.
The Job Description is intended to be a general representation of the responsibilities and requirements of the job. However the description may not be all-inclusive and responsibilities and requirements are subject to change.
The annual base pay for this position is: $186400.00 - $279600.00F5 maintains broad salary ranges for its roles in order to account for variations in knowledge skills experience geographic locations and market conditions as well as to reflect F5s differing products industries and lines of business. The pay range referenced is as of the time of the job posting and is subject to change.
You may also be offered incentive compensation bonus restricted stock units and benefits. More details about F5s benefits can be found at the following link: F5 reserves the right to change or terminate any benefit plan without notice.
Please note that F5 only contacts candidates through F5 email address (ending with @) or auto email notification from Workday (ending with or @).
Equal Employment Opportunity
It is the policy of F5 to provide equal employment opportunities to all employees and employment applicants without regard to unlawful considerations of race religion color national origin sex sexual orientation gender identity or expression age sensory physical or mental disability marital status veteran or military status genetic information or any other classification protected by applicable local state or federal laws. This policy applies to all aspects of employment including but not limited to hiring job assignment compensation promotion benefits training discipline and termination. F5 offers a variety of reasonable accommodations for candidates. Requesting an accommodation is completely voluntary. F5 will assess the need for accommodations in the application process separately from those that may be needed to perform the job. Request by contacting .
Required Experience:
Staff IC
About Company
F5 application services ensure that applications are always secure and perform the way they should—in any environment and on any device.