Data Scientist II

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.

Data Scientist II

Location: Seattle, WA or San Jose, CA

Reports To: Director of Data Science

Team: Data & Insights

Compensation: Competitive salary plus benefits

Role Overview

Join F5's Data & Insights team as a Data Scientist II and make a real impact with data. You'll leverage advanced statistical methods, machine learning, and large language models (LLMs) to create and scale data products that drive decision-making, boost revenue, and streamline operations. Your work will influence strategic initiatives, product development, and operational efficiency across the organization.

Key Responsibilities

Data Analysis & Modeling

• Design, develop, and deploy advanced statistical models and machine learning algorithms to address descriptive, predictive, and prescriptive business needs.
• Perform exploratory data analysis to uncover trends, patterns, and anomalies in large datasets; communicate findings clearly to audiences at all levels.
• Build predictive and classification models to forecast key metrics, support operational decisions, and guide business strategy.
• Design and execute experiments, including A/B tests and causal inference methods, to measure impact and inform strategic decisions.
• Develop AI agents and NLP solutions using large language models (LLMs) to solve internal business problems.
• Leverage AI-assisted coding tools responsibly in day-to-day work to improve speed, reliability, repeatability, and quality of results.

Collaboration & Communication

• Partner with project management, data engineering, data analytics, customer success, marketing, and finance teams to understand business requirements, build relationships, and deliver actionable insights.
• Present findings and recommendations to business users and senior leadership in a clear, compelling manner.
• Collaborate with the Data & Insights team to build and maintain scalable data pipelines for ongoing analysis and reporting.

Innovation & Continuous Improvement

• Stay current with advancements in AI tools, agentic frameworks, data science methodologies, machine learning, and causal inference.
• Continuously refine models and processes to improve accuracy, efficiency, and business impact.

Qualifications

Education

• Master's degree in Data Science, Statistics, Computer Science, Mathematics, Physics, or a related quantitative field.

Experience

• 3+ years of professional experience in data science, with a demonstrated track record of delivering impactful insights and production-grade models. Please provide an IP-respectful portfolio of work examples.
• Hands-on experience working with large-scale datasets using distributed computing platforms such as Snowflake and Databricks.

Technical Skills

• Proficient in SQL and Python.
• Skilled in LLM prompt engineering and integrating LLM APIs into workflows.
• Expertise with machine learning frameworks (e.g., TensorFlow, PyTorch) and libraries (e.g., scikit-learn).
• Experience with MLflow, feature stores, and feature evaluation tools.
• Strong understanding of experiment design, A/B testing, and causal inference methodologies.
• Experience with containerization and deployment tools (e.g., Docker, Kubernetes) for productionizing models and data science solutions.
• Comfortable with version/source control (e.g., Git), ML pipelines, and AI coding assistants.
• Proven ability to evaluate, optimize, and monitor model performance tied to business outcomes.

Interpersonal Skills

• Enthusiastic collaborator who builds strong stakeholder relationships and delivers successful business solutions.
• Demonstrates ownership, initiative, and a proactive mindset — "figure it out, make it happen, and share what you learned."
• Strong communicator who can translate complex technical concepts for non-technical audiences.
• Effective working both independently and as part of a small, high-demand team.

Why Join F5?

At F5, we harness the power of data to drive business success. As a Data Scientist II on our Data & Insights team, you'll shape the future of data utilization at F5 and deliver critical insights and data products that empower decision-making across the company. We offer a collaborative and innovative environment that values professional growth and celebrates impactful contributions. Join us and transform data into a cornerstone of F5's success.

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: $111,200.00 - $166,800.00

_F5 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 F5’s 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 F5’s benefits can be found at the following link: https://www.f5.com/company/careers/benefits. 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 @f5.com) or auto email notification from Workday (ending with f5.com or @myworkday.com).

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 accommodations@f5.com.