AI Engineer (Staff/Principal) New York

Fifth Dimension • New York, NY

2h • Onsite

About The Position

Fifth Dimension is a London and New York based startup focused on bringing 'vibe working' to document-heavy industries, specifically real estate. They automate complex tasks, extract valuable insights from documents, and empower professionals to focus on high-impact work for large investment managers and developers across the US, EU, and APAC. The company has an ample runway and is backed by Tier 1 European and American investors. The founders, Johnny Morris and Dr. Kate Jarvis, bring extensive experience in real estate data/analytics and Silicon Valley/London startups, respectively. Fifth Dimension values experimentation, kind challenges, and operates under the principles of 'Own It, Ship It, and Don't Be Boring'. The AI Engineer role involves architecting and implementing innovative AI technology to meet enterprise customers' unique needs, designing scalable AI solutions, and owning the complete lifecycle of core product capabilities from customer conversations to deployment and adoption. The ideal candidate is an expert software engineer passionate about applying AI to solve real business problems, with strong architectural skills, and proficiency in AI coding assistance tools.

Requirements

• Experience in high-growth startups or fast-paced tech environments
• Track record building software in organizations with excellent engineering practices
• History of owning end-to-end product development, from definition to delivery and customer adoption
• Strong Python skills with a track record of shipping customer-facing features on critical paths
• Experience building and maintaining high-quality APIs and integrations
• Proficiency with AI coding assistance tools (Cursor, GitHub Copilot, Claude Code)
• Intellectual curiosity and honesty—digging deep into problems and sharing findings openly
• Proven ability to make technical decisions that balance immediate user needs with long-term architecture
• Exceptional communication abilities for explaining complex concepts to diverse audiences
• Ambition and resilience—we're a seed-stage company tackling ambitious challenges
• Commercial awareness—delivering continuous value to customers is essential
• Passion for personal growth and continuous learning

Nice To Haves

• Past experience in real estate, law, or finance
• Background with robust software testing and deployment practices
• Experience with component-based system design and microservices
• Contributions to open-source projects or broader technical communities

Responsibilities

• Think like a Product Manager+: Own core product components while balancing technical excellence with business impact
• Own end-to-end delivery of complex features from initial concept to production deployment and customer adoption
• Collaborate with product and commercial teams to understand customer needs and translate them into robust technical solutions
• Leverage AI coding tools like Claude Code to accelerate development workflows
• Lead development of features solving our customers' most complex challenges: Advanced data extraction systems for processing property leases at scale, Sophisticated workflow automation for analyzing planning documents and drafting advice, Multi-step agentic content generation for creating market research reports
• Implement data privacy and security by design
• Stay ahead of relevant research and technologies
• Mentor other engineers and help establish engineering best practices
• Invest in your own growth by taking on ambitious technical challenges and expanding your expertise
• Apply our engineering philosophy: intellectual honesty, effective time management, clear communication, and innovation

Benefits

• Tailored support for life's challenges (IVF, gender-affirming care, ADHD diagnosis, and more)
• Meaningful parental leave
• $100,000-300,000 salary per annum
• Meaningful equity (on a standard vesting schedule)
• Other strong employment benefits

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed