Software Engineer II

F5 Networks, Inc.; Seattle, Northern (WA, KY); Hybrid; USD 110,000 - 170,000; Full time

Benefits offered by this job

Competitive salary

Health benefits

Retirement plan

Flexible work

Job summary

F5 Networks, Inc. invites top performing Summer 2026 interns to return as Software Development Engineer (AI) in Seattle, WA. You will work with mentors to design, implement, and test scalable AI-powered services, exploring Transformers and retrieval-augmented patterns while building robust APIs.

You will collaborate with peers across backend, DevOps, and ML workloads to grow your skills, contribute to real-world solutions, and chart a strong career path in a supportive environment.

Qualifications

• Bachelor's degree in Computer Science, Software Engineering, Information Technology, Computer Engineering, or a related field.
• Demonstrated programming experience in Python (preferred) or Java/C++/Go, including building APIs/services, writing tests, and using Git.
• Familiarity with modern LLM tooling and patterns, such as Hugging Face Transformers, prompt engineering, and retrieval-augmented generation concepts (embeddings + search).
• Demonstrated knowledge of computer science fundamentals (e.g., data structures and algorithms).

Responsibilities

• Design, implement, and test code in a collaborative environment with mentorship.
• Analyze requirements, test features, and integrate components into applications.
• Explore AI/ML technologies and grow your technical skills through progressively challenging projects.

Skills

Python

Java

C++

Git

LLM tooling

Education

Bachelor's degree in CS/SE/IT/CE

Tools

pytest

JUnit

LangChain

LlamaIndex

Job description

This position is exclusively intended for candidates who successfully completed the F5 Summer 2026 Internship Program and have received an invitation to apply for a return role.Join F5's Digital organization as a Software Development Engineer (AI) and launch your career with a talented team of engineers. In this entry-level role, you will collaborate with experienced mentors, contribute to meaningful projects, and work with technologies that power real-world solutions across our digital ecosystem.As a Software Development Engineer (AI), you will contribute to the design and development of scalable systems, explore AI and machine learning technologies, and grow your technical expertise in a supportive environment. Whether your interest is backend development, DevOps, machine learning engineering, or expanding your technical toolkit, you'll take on progressively challenging projects, build your skills, and establish a strong foundation for your career at F5.**Location**This role is based in Seattle, WA.**The Ideal Candidate Will Be Able To:**Work with peers to design, implement, and test code in a collaborative environment, receiving feedback and guidance from senior engineers.Analyze requirements, test features, and integrate components into applications with support and mentorship.**Knowledge, Skills and Abilities:**: You're eager to apply your programming knowledge, learn new languages and tools, and actively grow your technical skill set.**Team Player**: You enjoy collaborating with others, exchanging ideas, and supporting peers to achieve common goals.**Required Qualifications:**Bachelor's degree in Computer Science, Software Engineering, Information Technology, Computer Engineering, or a related field.Demonstrated programming experience in Python (preferred) or Java/C++/Go, including building APIs/services, writing tests (pytest/JUnit), and using Git in a collaborative codebase.Familiarity with modern LLM tooling and patterns, such as Hugging Face Transformers, prompt engineering, and retrieval-augmented generation concepts (embeddings + search).Demonstrated knowledge of computer science fundamentals (e.g., data structures and algorithms).**Preferred Skills (Not Required but Valued)**Experience with API development (e.g., FastAPI/Flask, REST/gRPC) and backend fundamentals (auth, pagination, error handling). Experience implementing retrieval-driven AI applications using LangChain/LlamaIndex and vector search technologies (e.g., pgvector, Pinecone, Milvus, Weaviate). Familiarity with fine-tuning approaches (e.g., LoRA/PEFT) and/or ML experimentation tools (MLflow or Weights & Biases).Experience with distributed/data tooling used in ML workloads: Spark, Ray, Kafka, or Airflow.**Professional Development**: Continue developing your skills with ongoing training, mentorship, and access to advanced learning opportunities**Career Growth**: Excel in your role and build a long-term career path with F5, including opportunities for advancement and specialization**Compensation & Benefits**Competitive salary commensurate with experience and market conditionsComprehensive health, wellness, and retirement benefitsWork-life balance benefits including flexible work arrangementsIt 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 [e-mail].**Remote**: Primarily work from designated home location but can come into an F5 office to work or travel to an offsite location as needed.