Fullstack Software Engineer

<h2><strong>tl;dr</strong></h2><ul style="min-height:1.5em"><li><p style="min-height:1.5em">After 14 years in construction tech, Lea &amp; Jonas are building the intelligence layer for the construction industry</p></li><li><p style="min-height:1.5em">The largest construction enterprises in Europe — with a combined project volume of over €30bn annually — rely on Kuro every day to automate workflows and make faster, better decisions</p></li><li><p style="min-height:1.5em">Construction has the most complex, unstructured data you can throw at an LLM — PDFs, drawings, 3D models, images, calculations. At Kuro you can tackle the hardest applied AI problems everyday.</p></li></ul><p style="min-height:1.5em"></p><h1><strong>About us</strong></h1><p style="min-height:1.5em"><a target="_blank" rel="noopener noreferrer nofollow" href="https://www.linkedin.com/in/lea-leibold/">Lea</a> and <a target="_blank" rel="noopener noreferrer nofollow" href="https://www.linkedin.com/in/jonas-minkler/">Jonas</a> scaled two of Europe's leading construction tech companies - Capmo and alcemy - and saw firsthand the challenges holding the industry back. Now they're tackling the root cause: the 50% of construction work still lost to manual data handling.</p><p style="min-height:1.5em">Kuro is the the intelligent project data system for construction. We're reimagining how construction professionals get work done and make decisions by leveraging AI to augment back-office workflows and make core data accessible.</p><p style="min-height:1.5em">After one year on the market leading construction enterprises with a combined construction volume &gt;30 billion annually use Kuro <strong>everyday to automate workflows and make faster, better decisions</strong>.</p><p style="min-height:1.5em">We are 16 people based in Berlin. You will join a group of ex-technical founders and builders that are ambitious and kind.</p><p style="min-height:1.5em">Learn more: <a target="_blank" rel="noopener noreferrer nofollow" href="https://www.notion.so/Join-Kuro-Berlin-13d9989aa64580479b00dff3ef322460?pvs=21">Join Kuro - Berlin</a></p><p style="min-height:1.5em"></p><h2><strong>The Opportunity</strong></h2><p style="min-height:1.5em">You will build and own customer-facing features end-to-end — and alongside that, work with the team on the data platform they stand on: ingestion pipelines, the construction ontology and the project graph.</p><p style="min-height:1.5em">Each customer project consists of 300 - 3,000 files: PDFs, construction drawings, scans, 3D models. Performant ingestion and a well-structured graph are the foundation for everything we are building from accuracy to ROI and user experience.</p><p style="min-height:1.5em"></p><h2><strong>What You'll Do</strong></h2><p style="min-height:1.5em"><em><strong>Build and own end-to-end features</strong></em></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Designing and implementing new features to solve a specific user problem such as file navigation or document versioning</p></li><li><p style="min-height:1.5em">From concept, to db schema to UI - own the full development lifecycle of customer-facing features</p></li></ul><p style="min-height:1.5em"><em><strong>Manage our web application &amp; APIs</strong></em></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Maintain and improve our web application's security and performance; build out existing and new features</p></li></ul><p style="min-height:1.5em"><em><strong>Work on the construction ontology &amp; project graph</strong></em></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Help model and evolve canonical entities of our customers</p></li><li><p style="min-height:1.5em">Contribute to entity resolution across sources: recognizing the same requirement, position or price across BoQs, contracts, drawings and bids</p></li><li><p style="min-height:1.5em">Build features so answers are evidence-linked and auditable, and decisions flow back into the graph</p></li></ul><p style="min-height:1.5em"><em><strong>Contribute to scalable data pipelines &amp; integrations</strong></em></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Extend our multi-modal ingestion of unstructured documents: PDFs, scans, drawings, 3D models. Orchestrated and cost-efficient at scale</p></li><li><p style="min-height:1.5em">Build read/write integrations with customer systems (document management, ERP/AVA), so workflows complete work end-to-end</p></li></ul><p style="min-height:1.5em"><em><strong>Help build the abstraction layers that turn use cases into a platform</strong></em></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Contribute to the workflow harness, decision-trace standard and eval tooling so a new use case ships in ~1 month</p></li><li><p style="min-height:1.5em">Build reusable human review &amp; approval surfaces where trust in AI output is earned<br /></p></li></ul><p style="min-height:1.5em"><strong>Projects you would be involved in</strong></p><p style="min-height:1.5em"><em><strong>Past projects</strong></em></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Project &amp; document versioning guaranteeing data lineage in construction projects</p></li><li><p style="min-height:1.5em">German tokenizer for construction-specific search</p></li><li><p style="min-height:1.5em">Document pipeline ingesting 10,000s of PDFs per day</p></li><li><p style="min-height:1.5em">Native BIM/DWG file support: ingesting and processing 3D models</p></li><li><p style="min-height:1.5em">Swapped the search engine under production load (Meilisearch → Turbopuffer) to unblock pipeline throughput and cut query latency</p></li><li><p style="min-height:1.5em">Document chunk highlighting in the PDF viewer and global document search via Fastify API</p></li></ul><p style="min-height:1.5em"><em><strong>Current projects</strong></em></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Design the ontology v1 + graph schema: core construction entities, evidence links, per-customer extension model</p></li><li><p style="min-height:1.5em">Develop systems to classify and organize project folders of 10,000+ files</p></li><li><p style="min-height:1.5em">Optimize queuing, logging and pipeline orchestration to process large document volumes</p></li><li><p style="min-height:1.5em">Templatize a workflow built for one use case so it deploys to the next as configuration, not code<br /></p></li></ul><p style="min-height:1.5em"><strong>Current Tech Stack</strong></p><p style="min-height:1.5em"><em>It is still day 0 for Kuro. Therefore we are highly pragmatic with our tool choices. We believe in keeping it simple and moving quickly. You significantly help shape our tech stack decisions.</em></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Web-App: Typescript</p></li><li><p style="min-height:1.5em">Database / Vector DB and File Storage: Supabase (postgress) / Trubopuffer / AWS S3</p></li><li><p style="min-height:1.5em">Backend (Document Pipelines &amp; applied AI): Fastify API / TS + Python for AI Services</p></li><li><p style="min-height:1.5em">Hosting: AWS Elastic Beanstalk</p></li><li><p style="min-height:1.5em">AI: Azure / OpenAI, Gemini, Cohere</p></li><li><p style="min-height:1.5em">Obsv., Eval. &amp; Tracking: Langfuse, Datadog</p><p style="min-height:1.5em"></p></li></ul><h2>Your profile</h2><p style="min-height:1.5em"><em>This is the perfect role for an experienced engineer who wants to join an early stage company that builds a high impact applied AI product</em></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">You thrive working in a small and accountable team with a lot of ownership</p></li><li><p style="min-height:1.5em">You love the 0 to 1 phase</p></li><li><p style="min-height:1.5em">You want to take full ownership in solving customer problems by designing and implementing features</p></li><li><p style="min-height:1.5em">You are passionate about the potential of GenAI, a strong believer in its transformative power, and eager to explore how it can be applied to solve real-world challenges in the construction industry</p></li><li><p style="min-height:1.5em">You have at least 5+ years of experience as a (full-stack) software engineer in a fast paced environment</p></li><li><p style="min-height:1.5em">You are fluent in both spoken and written English</p></li><li><p style="min-height:1.5em">You are happy to work onsite at our office (Factory Berlin Mitte) on a daily basis</p></li><li><p style="min-height:1.5em">You have impressive achievements from previous careers and from side projects. We’re excited to hear about these!</p></li></ul><p style="min-height:1.5em"><strong>Bonus Points</strong></p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">You’ve started a company before or worked at a very early stage startup</p></li><li><p style="min-height:1.5em">German-speaking (definitely not a must, we’re fully international)</p><div style="min-height:1.2em;margin-top:0;margin-bottom:0"> </div></li></ul><h1><strong>Why Kuro</strong></h1><p style="min-height:1.5em">You are joining Kuro among still in the early days . You will have significant influence over our product and how we build it and will be incentivised as such.</p><p style="min-height:1.5em">Your decisions and code will lay the foundation for Kuro, requiring a balance between fast iteration and delivering value to our customers, managing technical debt, and planning for scale.</p><p style="min-height:1.5em">You’ll own key parts of Kuro end-to-end, with the freedom to grow as a top individual contributor or take on managerial responsibilities over time. This is your chance to shape the future of Kuro.</p><p style="min-height:1.5em"></p><h1><strong>The process</strong></h1><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Talent Acquisition Call - Intro, logistics &amp; fit (30 min)</p></li><li><p style="min-height:1.5em">Impact Call - Get to know Product and Tech at Kuro with Jonas (45 min)</p></li><li><p style="min-height:1.5em">Technical Challenge - time boxed home assignment (~5 hours)</p></li><li><p style="min-height:1.5em">Technical Challenge Review (60min)</p></li><li><p style="min-height:1.5em">On-site Day</p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Culture Interview</p></li><li><p style="min-height:1.5em">Meet several team members</p></li></ul></li><li><p style="min-height:1.5em">Decision</p></li></ul><hr><p>Compensation: €80K – €120K • 0.05% – 0.2%</p><ul><li> • €80K – €120K • 0.05% – 0.2%</li></ul><p>Find more <a href="https://www.arbeitnow.com/english-speaking-jobs">English Speaking Jobs in Germany</a> on Arbeitnow</a>