# AI Engineer (Catalyst) **Company**: Fifth Dimension **Location**: London **Work arrangement**: remote **Experience**: entry **Job type**: full-time **Category**: Engineering **Industry**: Technology **Apply**: https://careers.fifthdimensionai.com/jobs/7457576-ai-engineer-catalyst **Canonical**: https://yubhub.co/jobs/job_e9b3dc5e-e78 ## Description ### You ship faster than people think is possible. You treat AI tools as a multiplier, not a crutch. You’re early in your career but already building things that make experienced engineers pay attention. Apply We usually respond within a day ### About Us Fifth Dimension is the most prominent AI company in real estate in the world, bringing AI to document-heavy industries. We work with real estate businesses in the US, EU, and APAC, automating complex tasks, extracting valuable insights from documents, and empowering professionals to focus on high-impact work. ### The Challenge It’s 9 AM on a Monday. You’ve already got a couple of AI-generated PRs from the weekend open for review - experiments you kicked off with Claude Code on Friday that ran overnight. By 10:30, the reviews are in and you’re iterating. By lunch, one feature is in staging with tests. After a quick review with a staff engineer who raises an edge case you hadn’t considered, you ship v2 by 3 PM. By the end of day, real customers are using it,and you’re already looking at the eval results to figure out what v3 needs. ### About You You’re an AI-first engineer. While others debate whether AI tools are ready, you’ve been shipping with them for months, maybe years. Claude Code and Codex aren’t novelties to you; they’re how you work. You’re outcome-obsessed and customer-obsessed: you don’t just build features, you solve problems for real people and measure whether it actually worked. ### Your Impact Reporting to our CTO Chen, you’ll be our first early career AI engineering hire,and that means you’ll help define what AI-first engineering looks like at 5D. You’ll work alongside staff and principal-level engineers who’ll stretch your architectural and domain thinking, while you push the team’s velocity and AI tooling practices forward. ### Day to Day, You Will - Ship features to production multiple times a day, using Claude Code, Codex, and AI-augmented workflows as your primary development approach - Own features end-to-end: from understanding the customer problem, through implementation, to deployment and measuring impact - Build and evolve our AI intelligence platform,from agentic workflows and evaluation infrastructure to the UI/UX that puts AI capabilities in customers’ hands - Experiment rapidly,prototype approaches, measure results against our evaluation framework, learn from the data, and iterate - Pair with staff and principal engineers who bring deep domain and architectural expertise, while showing them new ways to leverage AI tooling for speed and quality - Collaborate closely with Product Managers, Customer Success Managers, and Solutions Engineers to stay rooted in what customers actually need - Contribute to our engineering culture by sharing what you learn about AI-first development workflows, prompting techniques, and tooling - Write code that’s clear, tested, and maintainable,speed without quality isn’t speed, it’s debt ### Our Values and Engineering Culture At 5D, we embody three core principles: Own it, Ship it, and Don’t be boring. Our engineering team values: - Product-Minded Engineering: Understanding the “why” behind features and using technical expertise to inform product decisions - Intellectual Honesty: Backing discussions with data and acknowledging knowledge gaps - Effective Time Management: Setting clear timeboxes and abandoning approaches that aren’t working - Clear Communication: Writing self-documenting code and providing detailed explanations - Innovation Mindset: Forming well-reasoned opinions backed by data and continuously learning - Personal Growth: Supporting your development through challenging work and opportunities to expand your expertise - Having Fun: We’re building something extraordinary across three of the world’s most exciting cities. We take the work seriously, not ourselves ### What We’re Looking For We don’t care about years of experience or specific degrees. We care about what you’ve built, how fast you learn, and how you think. Show us your work. - Demonstrable experience shipping software,personal projects, open source, freelance, startup, or professional. The context matters less than the output. - Fluency with AI coding tools (Claude Code, Codex) as part of your daily workflow, not as an occasional novelty - Strong programming fundamentals, particularly in Python and TypeScript,but we welcome experience in other languages and architectural paradigms too. You should be able to read, reason about, and debug code that AI helped you write. - A portfolio or body of work that shows velocity and quality: things you’ve built, shipped, and ideally that people have used - Comfort with rapid experimentation: you prototype fast, measure outcomes, and aren’t precious about throwing things away - Intellectual curiosity and honesty,you dig into problems, share what you find (including failures), and ask for help when you need it - Clear communication: you can explain what you built, why, and what you’d do differently - Ambition and resilience,we’re tackling hard problems at the intersection of AI and real estate, and you want to grow with us ## Skills ### Required - AI coding tools - Claude Code - Codex - Python - TypeScript - Strong programming fundamentals