Senior AI Product Engineer

Job Description:

• Review each prototype and document whether it should move forward, be revised, or be discontinued
• Build data models, APIs, integrations, error handling, tests, and deployment processes for reliable production software
• Establish automated testing, secret scanning, and code and dependency checks aligned with the production approval process
• Connect Cardiff’s systems with external lenders and vendors and standardize inconsistent data
• Monitor, maintain, and improve deployed systems
• Resolve incidents and document corrective actions
• Provide written updates, flag blockers, and coordinate scope and acceptance with business owners
• Turn AI-built prototypes into reliable software used by Cardiff’s teams
• Support lender routing, sales calculators, decisioning workflows, and automation agents
• Deliver measurable improvements in processing efficiency and time to funding

Requirements:

• Seven or more years of software development experience, with recent hands-on ownership of systems delivered to real users
• Strong production engineering judgment across testing, security, reliability, monitoring, and incident response
• Proficiency in Python, JavaScript/TypeScript, SQL, REST APIs, and cloud deployment, preferably AWS
• Experience integrating external systems and translating inconsistent inputs into clean, usable data models
• AI development as a core working practice, including coding tools, LLM APIs, agents, and evaluations, with careful review of generated code
• Ability to assess existing code, determine what to retain or rebuild, and deliver practical solutions quickly
• Comfort working directly with the Managing Partner and nontechnical stakeholders, with clear communication and accountability