Senior Frontend Engineer

About The Mobile-First Company

Most tools for small businesses weren't built for real operators.

They were built for employees in offices, not people running a business from their phone.

We're changing that.

We build

mobile-first business software

that feels like a consumer app, runs on AI, and spreads like a creator brand.

Our first product, Allô, gives you a second number on your phone, answers missed calls with AI, transcribes everything, and syncs it to your CRM.

Over 20,000 businesses use it every day.

Next up: expenses, invoicing, and more.

+15 million dolars

from Base10, Lightspeed, EMBLEM, and 30+ top operators.

Our team is based in

Paris, Buenos Aires

,

Miami

What Will You Do

As the first Frontend Engineer, you'll work side by side with our Product, Mobile and Back-end team to build the foundations, the present, and the future of our web products.

Develop and enhance both our existing and new web applications.

Contribute to technical and strategic decisions regarding our web products.

What you'll be working on

Evolve our web capabilities and push the limits of what can be done

Define, build, and improve the tools and architecture behind our web app

Ship high-quality web apps, while always improving UX and performances

Monitor usage and performance to identify what's missing or broken

Create internal tools, reusable components, and ways to ship faster

What we're looking for

• Engineering
  
  

You've built and shipped web apps using React.JS.

You're comfortable with Tailwind, Typescript, TanStack Query.

You've already worked on a product with a large user base.

You master clean animations, pixel perfect designs and smooth transitions.

• Product and design mindset
  
  

You care about good UX and clear UI

You think in terms of users, not features

You've built polished components with strong attention to detail

• Performance and data
  
  

You know how to build scalable and maintainable code

You care about what to measure and how it impacts business and users

You track behavior, usage, and performance, and improve based on it

• Performance and data
  
  

You know how to build scalable and maintainable code

You care about what to measure and how it impacts business and users

You track behavior, usage, and performance, and improve based on it

• How you think
  
  

You care about why we build things, not just how.

You ask smart questions, challenge ideas when needed, and help shape what's next.

You think in terms of user value and business impact.

How you work

You communicate clearly, give feedback with no ego, and help others grow.

You move fast, take ownership, and thrive in ambiguity.

You're comfortable working in English — and in a small team with big goals.

What matters to us

You've worked in mobile-first companies

You've built or contributed to products with more than 1 million downloads

You're excellent at React.js

You have 4+ years of experience

You're proactive, autonomous, and know how to fill the gaps

You can communicate in English, since that's our official language.

Most of the team also speaks Spanish and French.

What we offer

Competitive salary (in USD or local equivalent)

Equity package

10-day team retreats abroad every quarter

30-day onboarding in Paris (we cover flights and housing)

Laptop and work setup of your choice

Private health insurance (for US or LATAM hires)

A tight, ambitious team building something real — fast

How to apply

Click the

Apply

button on this page to send your application.

No cover letter needed just tell us who you are and why this role fits you.

Not the perfect match, but want to join us?

Send a spontaneous application to ******.

We welcome people from all backgrounds.

If you're part of an underrepresented group in tech, we especially want to hear from you.

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