Fullstack Engineer - Integrations (Freelance) at Vibe · Paris

ABOUT VIBE At Vibe.co http://Vibe.co, we're reimagining how brands reach audiences in the age of streaming. We believe streaming TV is no longer just a brand awareness play, it's the next great performance marketing channel. We're building the infrastructure to unlock this $100B opportunity. Vibe.co http://Vibe.co provides an Audience First Streaming TV Advertising solution for marketers to unlock TV as a growth channel. Our all-in-one solution combines hyper-targeted audience segmentation, AI-powered insights and recommendations, real-time campaign optimization, and incrementality measurement, giving brands of all sizes the precision and transparency they've come to expect from social and search, but on TV. Trusted by over 10,000 brands, Vibe.co http://Vibe.co reaches more than 120 million households across 500+ apps and channels, delivering an average 250% return on ad spend and 20% sales lift. The company hit a $100 million revenue run rate in under two years, ranking among the ten fastest software companies to reach that milestone. Vibe.co http://Vibe.co's investors include Hedosophia (an early backer of Spotify, Uber, and Airbnb), Elaia, Singular, QuantumLight (Revolut CEO Nik Storonsky's fund), and Illusian (Supercell CEO Ilkka Paananen's fund), as well as angel investors including Carolyn Everson, board member of The Walt Disney Company and Coca-Cola. Nirav Tolia, CEO of Nextdoor, sits on the company's board of directors. Founded in 2022, Vibe.co http://Vibe.co is widely recognized as the category-defining platform in streaming TV advertising, bringing the power of Meta and Google-style performance marketing to the fastest-growing segment in media. ABOUT THE ROLE You'll join the Integrations team, the connective tissue of Vibe's platform. The team owns all data flowing in and out of Vibe: measurement and attribution integrations, audience connections from CRMs and CDPs, and reporting pipelines. This role exists because we're building a first-class Developer Platform, opening Vibe's full capabilities as an API so external partners can build on top of us. Three reasons to want this: you'll be among the first engineers building this team in New York from the ground up, you'll ship integrations with marquee partners while owning foundational architecture, and you'll work in an environment where AI-augmented development is the norm, not an afterthought. WHAT YOU'LL DO Build & Ship Integrations - Design and implement integrations with external platforms, CRMs, CDPs, measurement vendors, and data partners - Own integration projects end-to-end, from scoping to production with minimal hand-holding - Collaborate directly with external partners to define and validate data contracts Developer Platform - Build the infrastructure for Vibe's public API, account, advertiser, and campaign management endpoints - Develop documentation, monitoring, and tooling that makes the developer experience first-class - Contribute to MCP gateway and authentication layers that expose Vibe's capabilities externally Reliability & Scale - Identify bottlenecks in existing pipelines and rebuild them to handle growing data volume - Write code that your team can review, extend, and trust, not just code that ships - Use AI tooling actively to accelerate development and close quality gaps WHAT YOU NEED - Hands-on experience shipping production-grade software in TypeScript and Python, you've written it, debugged it, owned it - Comfort working across the full stack: APIs, data pipelines, and infrastructure (AWS, Terraform) - Exposure to low-level programming concepts, C or C++ experience is a plus; knowing how memory and concurrency actually work is the bar - A startup or high-ownership background, you've operated without a team for every problem and figured things out - Strong instincts for code quality: you give real feedback in reviews and can receive it the same way NICE TO HAVES - Prior experience building or maintaining third-party integrations (ETL, webhooks, REST/GraphQL APIs) - Familiarity with GCP or multi-cloud environments - Experience designing or contributing to developer-facing platforms or public APIs OUR VALUES At Vibe, we run on three values: Impact, Ambition, and Urgency. We tie every goal to a real business outcome, think 10x rather than settling for good enough, and move daily rather than waiting for perfect conditions. You'll thrive here if you own outcomes without needing direction, default to action, and hold yourself to results, not effort. This is a high-performance environment with high-performance rewards: you'll work alongside people who push you, with real ownership over hard problems in a market that's moving fast. If that sounds like the best version of your career, we want to meet you. WHAT WE OFFER - Hybrid flexibility — We're in the heart of Paris and our team is in 3x a week. - Annual offsite — The whole team, once a year, somewhere worth the trip. - Tech Syncs — Engineering and Product meet in person at least quarterly, worldwide. OUR INTERVIEW PROCESS We respect your time. Here's exactly what to expect — no surprises, no ghosting. 1. Recruiter screen — 30 min. We'll share context; you'll share yours. 2. Manager interview + technical assignment — 1h30. Meet your future manager and work through a real problem together (no trick questions). 3. Offer — Fast. We don't let good decisions sit. Equal Opportunity Vibe is an equal opportunity employer. We evaluate all applicants without regard to race, color, religion, national origin, gender, gender identity or expression, sexual orientation, age, disability, veteran status, or any other characteristic protected by law. We believe the best ideas come from teams with different backgrounds, perspectives, and experiences. If you need a reasonable accommodation during the application or interview process, please let us know. REFERRAL INSTRUCTIONS Being referred? Ask your contact to submit your application directly on your behalf.