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.

We’ve raised +15 million dolars from Base10, Lightspeed, EMBLEM, and 30+ top operators.

Our team is based in Paris, Buenos Aires , Miami .

Drive the evolution of our backend technology, infrastructure, and AI capabilities to ensure high performance, scalability, and seamless integration for our mobile applications.

What will you do:

• Work side by side with our CTO to build the foundations, the present, and the future of our backend, and AI systems.
• Develop and enhance backend systems for both existing and new applications in conjunction with mobile engineers.
• Contribute to systems design, infrastructure planning, CI/CD processes, and data workflows.

What you’ll be working on

• Implementing and maintaining scalable and reliable backend systems using languages like Kotlin, Java, Go, Python or similar.
• Designing and defining backend tools, databases, and the architecture of our apps.
• Working directly with Cloud services (e.g., AWS, Supabase, Cloudflare).
• Creating tools, libraries, or components to enhance the efficiency of backend development processes.

What we’re looking for

What matters to us

• You’ve worked in product companies
• 4+ years of experience designing and building high-performance systems used by millions.
• 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 semester
• Trips to our Hubs (Pairs/Miami/BA) for onboarding and more
• Laptop and work setup of your choice
• Coverage for 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 talent@themobilefirst.co . We welcome people from all backgrounds.

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