Product Engineer (Staff/Principal) New York

Fifth Dimension

9h • 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 businesses in the US, EU, and APAC. The company automates complex tasks, extracts valuable insights from documents, and empowers professionals to focus on high-impact work through its AI workspace, which transforms how large investment managers and developers handle leases, development documents, and investment decisions. Backed by Tier 1 European and American investors, Fifth Dimension has an ample runway. The founders, Johnny Morris and Dr. Kate Jarvis, bring extensive expertise in real estate data analytics and executive experience in Silicon Valley and London startups, respectively. The company values experimentation and kind challenges, driven by principles of 'Own It, Ship It, and Don't Be Boring', fostering innovation and continuous improvement. The role of Product Engineer involves deep engagement with user outcomes, understanding problem spaces, making sharp product calls, and building solutions that customers find indispensable. This position requires an expert software engineer proficient across the full stack, with strong product intuition, the ability to communicate with customers, and a knack for pragmatic trade-offs. The ideal candidate leverages AI coding assistance tools like Claude Code to accelerate development and focuses on higher-level product and architectural challenges, taking pride in the end-to-end user experience. This role thrives in fast-paced environments, adapting quickly, mentoring other engineers, and collaborating effectively with commercial teams and customers. The Product Engineer is passionate about personal growth, seeing complex problems as opportunities to expand capabilities, and actively seeks challenges that push boundaries.

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 discovery and definition to delivery and customer adoption
• Demonstrated product instinct – shaping what gets built, not just how it gets built
• Strong Python skills with a track record of shipping customer-facing features on critical paths
• Experience designing and building high-quality APIs, services, and distributed systems
• Solid frontend skills and experience building polished, user-facing applications
• 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 – tackling ambitious challenges in a seed-stage company
• Commercial awareness – delivering continuous value to customers is essential
• Passion for personal growth and continuous learning

Nice To Haves

• Experience with cloud infrastructure (GCP, AWS, or Azure) and container orchestration
• Past experience in real estate, law, or finance
• Background with robust software testing and deployment practices
• Experience with component-based system design and microservices
• Experience with event-driven architectures and streaming systems
• Contributions to open-source projects or broader technical communities

Responsibilities

• Own core product areas while balancing technical excellence with business impact, actively contributing to spec writing
• Own end-to-end delivery of complex features from discovery and definition through to production deployment and customer adoption
• Talk to customers regularly to understand their workflows, pain points, and unarticulated needs to inform what to build
• Collaborate with product, design, and commercial teams to shape the roadmap and translate customer insight into robust technical solutions
• Leverage AI coding tools like Claude Code to accelerate development workflows
• Lead development of scalable APIs and backend services that power document processing, data extraction, and agentic workflows
• Lead development of reliable streaming and event-driven architectures for real-time user experiences
• Lead development of frontend experiences that make powerful AI capabilities intuitive and accessible
• Lead development of integrations with enterprise systems and third-party platforms
• Implement data privacy and security by design
• Champion engineering best practices: testing, observability, CI/CD, and infrastructure-as-code
• Mentor other engineers and help establish engineering and product-thinking best practices
• Invest in personal growth by taking on ambitious technical challenges and expanding expertise
• Apply 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
• $150,000-300,000 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