Remote-first (Europe, CET ±3h)
Software Engineer - Full Stack
San Francisco +2 · Remote€55k – €80k + EquityWe are hiring candidates already eligible to work in Europe (within CET ±3h).
About this role
TL;DR
Junior-to-mid Full-Stack engineer ramping on Cello's React · NestJS · Python stack, mentored by senior engineers, AI-tooling-heavy workflow.
🌎 Remote, Europe (CET ±3h)
⏱ Full-time
💼 2–6 YoE
💰 Competitive + eVSOPs
🌱 Seed · $10.3M raised
About Cello
Cello is the Revenue Growth Infrastructure for digital businesses to acquire, retain, and monetize customers at scale in the AI era. The platform turns word-of-mouth into a systematic growth channel. Category leaders including Typeform, Miro, and Veed trust Cello — 10M+ end users interact with the system every month and 30+ new customers sign on every month. $10.3M raised from top-tier investors. Founding team are serial founders and operators from Twilio, Wise, and Skype.
What We're Building
Front-end widgets that live inside customer products, APIs that customer developers integrate against, and a portal where customers manage campaigns and analytics. Under the hood: attribution across complex user journeys, recommendation engines, multi-tenant infrastructure serving hundreds of customers and scaling millions of events.
Your Mission
Stack: React · NestJS · Python
- 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.
- Work alongside senior engineers who'll help you grow, but we won't spoon-feed you either.
- We use AI tools heavily in our workflow — you'll be expected to leverage them to move fast and learn faster.
About You — Required
- Good English (written and 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.
- Hungry to learn. What you might lack in experience, you make up in energy and curiosity.
- 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.
- Eager to learn the product and the domain, not just the tech.
- Strong work ethic — take ownership, ship what you commit to, don't need to be chased.
Nice to Have
- Mobile development experience (React Native, Flutter, or similar).
- AWS exposure — not a must, but willingness to learn is.
- Side projects or a portfolio that shows you like building things.
Comp & Location
Location: Remote-first, Europe-based (CET ±3h)
Comp: Competitive salary + eVSOPs (virtual stock options)
Company at a glance
Cello provides Revenue Growth Infrastructure that turns word-of-mouth into a scalable growth channel for digital products. With Europe-based engineers and clients like Typeform, Miro, and Veed, it serves hundreds of customers, processes millions of events, and engages 10M+ users monthly.
IndustryReferral Marketing / SaaS
Team Size10-25
WorkspaceRemote
StageSeed
Founded2021
Locations
San Francisco, CA, United States ·Los Angeles, CA, United States ·New York City, NY, United States
Investors
byFounders ·HV Capital ·Notion Capital ·Possible Ventures ·Tiny VC
Top Benefits
- Competitive salary + eVSOPs (virtual stock options)
- Remote-first with regular in-person meetups
- Real influence on architecture and product direction
- Work directly with founders and senior leadership
- Lean budget for AI tooling and ongoing learning
Culture & values
Senior, small team — direct stakeholder access, no ticket factory
AI-native engineering (Claude Code, Cursor, MCP servers)
Ownership > pedigree — early-stage / scrappy bias over big-tech
Strong work ethic — ship what you commit to
Regular company-wide and engineering-team meetups
Know someone who'd be great for this?
