Prompt Engineer

Fullpath by Cox Automotive is a fast growing tech company in the automotive space with hubs across the US and Israel. We are disrupting the multi-trillion dollar transportation industry with our advanced Customer Data Platform (CDP) . Our work happens in the fast lane as we bring AI-powered, data-driven solutions to a quickly evolving industry.

Our team at Fullpath is made up of curious and creative individuals who are always looking to achieve the impossible. We are bold, collaborative, and goal driven, and, at our core, we believe every voice has value and can impact our bottom line.

If you are a creative, solutions oriented individual who is ready to put your career in drive, Fullpath is the place for you!

We are seeking a Prompt Engineer to join our product team and help take our AI-powered products to the next level. In this position you will be responsible for ensuring that our LLM workflows not only meet the highest standards of quality and reliability, but actively drive conversion and adoption across our products. You will design, validate, monitor, and optimize prompts, LLM workflows, and AI agents, with a sharp eye on business outcomes and conversion rates. The ideal candidate will possess excellent organizational and communication skills, a strong product and growth mindset, and the ability to collaborate effectively across many departments and teams. Most importantly, you will be genuinely passionate about modern AI tools and the practical adoption of LLMs in product development: you stay on top of what's new, experiment constantly, and bring fresh ideas to the team.

This is a position based out of our Tel Aviv office or Jerusalem office, and will report to the LLM Team Lead.

• Design, prototype and iterate AI agents and LLM workflows from ideation to execution
• Drive conversion rate optimization (CRO) and product adoption for AI agents
• Monitor live systems (dashboards, A/B tests, validation pipelines), triage issues, and implement fixes for hallucinations and regressions
• Build and maintain LLM-as-judge frameworks to continuously evaluate quality at scale
• QA and evaluate end user-facing AI output with a sharp eye on tone, messaging, and conversion effectiveness
• Collaborate with stakeholders across product, marketing, CX, and R&D teams

• Native level verbal and written English with excellent communication, presentation, and interpersonal skills
• 3+ years in a SaaS company in a growth, product, content/marketing or QA roles
• Proven experience with conversion rate optimization and a data-driven approach to improving outcomes
• Experience with Langchain, n8n, Cursor, Claude, or similar tools
• Strong working knowledge of today's prompting methods including skills, MCPs, and agent orchestration
• Strong product sense and empathy towards users, customers and their needs
• Creative problem solver with a sense for business needs, while having some technical aptitude 
• Strong analytical and troubleshooting skills – comfortable working with data to drive decisions
• Growth mindset

• Hands-on experience with using LLM pipelines in a product context 
• Experience working with chatbots or conversational AI products
• Writing experience, such as copywriting, personal writing, UX writing background
• JavaScript or basic scripting knowledge

• An awesome global team of forward-thinking, innovative go-getters
• Integrate with tech titans: work directly with APIs from Google, Facebook, Microsoft, and more
• Be part of a rapidly scaling company poised for the future
• Learning and growth opportunities within a fast-paced tech startup environment
• Clear career advancement path for strong performers
• We are committed to setting each other up for success. As a member of our team, you will work in an environment that encourages growth, initiative taking, and continuous mutual feedback in order to reach your full potential.
• Cibus and lots of yummy treats :-)

Are you the one? apply here! [email protected]