Cello - Software Engineer (m/f/d)
Responsibilities
• Work with the following stack: React · Typescript · NestJS · Python · AWS • React • Typescript • NestJS • Python • You'll start with well-scoped tasks and ramp up from there - we don't expect you to know everything on day one. • Build features, fix bugs, and gradually take on more ownership as you learn the product. • You'll work alongside senior engineers who'll help you grow, but we won't spoon-feed you either. • alongside senior engineers • We use AI tools heavily in our workflow - you'll be expected to leverage them to move fast and learn faster • AI tools heavily • Good English (written & spoken) • Some experience with React (or similar) and NestJS/Python (or similar) - you don't need years, but you need to have built something real. • React • NestJS/Python • built something real • Hungry to learn. What you might lack in experience, you make up in energy and curiosity. • energy and curiosity • You're enthusiastic about AI tools and actively use them to punch above your weight - but you've also written code that works without AI doing the thinking for you. • AI tools • Eager to learn the product and the domain, not just the tech. • Strong work ethic - you take ownership, ship what you commit to, and don't need to be chased • Strong work ethic • Nice-to-haves • Experience with mobile development (React Native, Flutter, etc.) • AWS exposure - not a must, but willingness to learn is • Side projects or a portfolio that shows you like building things
Benefits
• $10.3M raised from top-tier investors, 30+ new customers every month • Small team — you'll shape how we build, not just execute tickets • Founding team of serial founders and operators from Twilio, Wise, and Skype • We adopt AI tools where they actually help — because our customers do too • Remote-first with regular team meetups across Europe • What We’re Building • What We’re Building • We help SaaS companies turn their users and partners into a sales channel through referrals, sharing, and recommendations - 10M+ end users interact with our system every month.Our widgets live inside customer products, which means your code runs in environments you don't control. On top of that: APIs that customer developers integrate against, and a portal where customers manage their campaigns and analytics.Under the hood: attribution across complex user journeys, AI-based recommendation engines, multi-tenant infrastructure serving hundreds of customers, scaling millions of events. Deeper than you'd expect from a referral tool.Our product is integrated by customer developers - and that world is changing fast. The people building against our APIs and widgets range from corporate engineering teams to solo founders using AI coding agents. Keeping up with how developers work today, and making sure our product fits into all of those workflows, is one of the more interesting challenges here. • 10M+ end users • environments you don't control • corporate engineering teams to solo founders using AI coding agents • In the end, it’s all about the team and our culture. Understand why we love our job and see what it’s like to work at Cello in our People Playbook. We have some compelling perks and benefits here. • ⭐ We are the Revenue Growth Infrastructure for digital businesses to acquire, retain, and monetize customers - at scale in the AI era. Cello turns word-of-mouth into a systematic growth channel.Our referral platform allows users and affiliates to share and discover any software product with only a few clicks. By inspiring users to share the products they love, we are virtually reinventing how companies sell and market products.Category leaders including Typeform, Miro and Veed trust Cello to accelerate their growth flywheel.
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