C

AI Engineer (PHX)

Castle Biosciences
Full-time
On-site
Phoenix
Job Description

Job Description

Castle Biosciences Earns "Top Workplaces USA Award" for Phoenix, Pittsburgh, and Friendswood! You won't find a work culture and benefits package like ours every day. Come join our team and a group of colleagues who love working at Castle! Learn more at

www.CastleBiosciences.com Castle Biosciences Inc.

is growing, and we are looking to hire an

IT, AI Engineer working from our Phoenix, AZ office location

. Why Castle Biosciences? Exceptional Benefits Package:

Excellent Annual Salary + 20% Bonus Potential 20 Accrued PTO Days Annually 10 Paid Holidays 401K with 100% Company Match up to 6% 3 Health Care Plan Options + Company HSA Contribution Company Stock Grant Upon Hire

A DAY IN THE LIFE OF AN IT, AI Engineer A typical day for an AI Engineer in this role involves designing and fine-tuning large language models, developing agent-based systems to automate workflows and decision-making, and collaborating with stakeholders to identify business needs. The majority of this role's time will be focused on discovering, evaluating, and deploying generative AI tools that streamline business processes, including researching new frameworks, testing feasibility through proof-of-concepts, and implementing them into production workflows. The AI Engineer will also integrate these tools into existing systems to improve efficiency and productivity, while ensuring solutions are reliable, scalable, and aligned with governance standards. In addition, they monitor deployed models for performance, address issues such as drift or bias, maintain MLOps pipelines, and document workflows to support cross-team communication, all while staying engaged with emerging AI trends. QUALIFICATIONS

Bachelor's, Master's, or PhD in Computer Science, Data Science, Machine Learning, or related field OR relevant experience. Strong expertise in large language models, agentic frameworks, and orchestration systems. Experience with LangChain, AutoGen, CrewAI, or similar orchestration libraries, as well as Copilot Studio. Knowledge of prompt engineering, fine-tuning, and tool augmentation for LLMs. Familiarity with RPA platforms (UiPath, Automation Anywhere) and AI-driven workflow automation.

* Please see the full success profile at the end of the job ad. TRAVEL

As needed SCHEDULE

Typically, Monday through Friday in office 8-hour workday, exempt position, working from the Phoenix, AZ office location.

READY TO JOIN OUR BIOTECH TEAM? We truly appreciate your time. If this feels like the right opportunity for you, we'd love for you to complete our

mobile-friendly application.

We're excited to learn more about you and look forward to connecting soon! Castle Biosciences Awards and Research Developments!

WORK AUTHORIZATION All candidates must be legally authorized to work in the United States. Currently, Castle Biosciences does not sponsor H-1B visas, OPT, or employment-related visas. ABOUT CASTLE BIOSCIENCES INC. At Castle, it all comes down to people. After all, disease doesn't just happen - it happens to people. We believe that disease management and treatment decisions can be better informed through a person's unique biology, which is revealed through the scientific rigor of our innovative, laboratory-developed tests. We are committed to empowering healthcare providers and patients with the goal of improved outcomes. Every employee at Castle has an impact on patient care, and we work to ensure that everyone finds their work to be both

challenging and rewarding . We behave with

integrity

and treat our colleagues with

respect and kindness . Our culture fosters an

environment of trust, transparency, and collaboration . We prioritize and encourage

internal growth

and

professional development . Castle Biosciences is an equal opportunity employer as to all protected groups, including protected veterans and individuals with disabilities. If you have a disability and you believe you need a reasonable accommodation in order to search for a job opening or to submit an online application, please e-mail

ReasonableAccommodationsRequest@castlebiosciences.com

. This email was created exclusively to assist disabled job seekers whose disability prevents them from being able to apply online. Only messages left for this purpose will be returned. Messages left for other purposes, such as following up on an application or technical issues not related to a disability, will not receive a response. ** No third-party recruiters, please

Job Posted by ApplicantPro