Senior Full Stack Engineer (TypeScript / React / Python / AI)IC 3-5 | Poland🍋 About UsLemonlight is setting the standard for what the future of film production looks like with our AI-first internal platform, Hero. We combine the best of white-glove, hands on creative teammates with the future of AI video production, scheduling, and data management to empower the world’s best brands and creatives. We’ve likely had a hand in some of your favorite commercials, and we’re expanding to match our constant growth. If you want a chance to work inside the studio and not on the sidelines, this is it. Our product team is located in Los Angeles and Europe, and we’ve been rated one of the best companies to work for in Los Angeles by BuiltIn.  📽️ Why This Role ExistsHero is the backbone of every shoot, script, storyboard, call sheet, and client interaction - and we’re now evolving it into a scalable SaaS platform. Our team builds the systems that power how 100+ creatives, producers, editors, and crew members work globally, centralizing every detail in one cohesive workspace.From real-time feedback and instructions to creative outputs and production logistics, we’re turning a traditionally fragmented video production process into a streamlined, intuitive product.As we shift Hero from an internal tool to a full-fledged SaaS solution, you’ll help shape the user experience for a broader market of production teams and video creators around the world.Together we’ll radically improve production speed and accuracy so creatives can spend more time creating. 🛠️ What You’ll Work On 🚛 Build and ship production ready projects from end-to-end with a team that prioritizes speed of learning using NestJS, React, MUI, OpenAI and more. 🙏 Collaborate with product experience managers and other engineers on a small, autonomous squad focused on improving capacity and saving time through AI tools.  📐 Architect solutions that centralize knowledge, empower faster editing, and provide better AI outputs for the creative team.  🧱 Own services like prompting, knowledge collection, knowledge centralization, fact management, AI training, and more. ⚡ Rapidly prototype to go from idea to POC in collaboration with the PXM team. 🇵🇱 You’ll work in the Polish time zone (CET) with a team that is primarily made up of Polish engineers. ☑️ Who We’re Looking For 6+ years of direct, full-stack engineering experience Strong experience in Typescript and Node.js ecosystems Direct experience integrating AI tooling into outcome focused features Strong customer empathy and a willingness to learn rather than prove Can execute beautiful front end projects and complex API integrations Proven background of engineering collaboration, and shipping cross-functionally facing products Remote‑first but the best if you reside in Poland (CET time zone) 📍 Fluent in English and good communicative Polish (B2+) preferred ➕ Bonus Points For Library of agents and personal AI projects you’ve built Deep, direct experience with our tech stack SaaS and B2B or marketplace experience Experience working with Python ⚙️ Our Stack Backend: Node.js, NestJS, MongoDB, AWS. (Python experience is a plus) Frontend: React 19, MUI, Tanstack Query, React Hook Form, TipTap AI: OpenAI, Fal, ElevenLabs, Langchain 💰 Compensation and Interview Expectations 🇵🇱 Tier 1 Poland (IC3–IC5) : $6,500–$10,000 / month 📄 View our interview process 🎁 Perks Unlimited Vacation Policy - We trust our employees to manage their own time. Annual training budget for courses, certifications, or learning resources of your choice. Multisport Package - Enjoy access to numerous sports centers and activities. International offsites in LA. Social Events - Monthly Co-workings and Quarterly Integrations.