Senior React Native Engineer

About The Mobile-First Company

Most tools for small businesses werent built for real operators. They were built for employees in offices, not people running a business from their phone.

Were 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.

Weve raised 5 million euros from Lightspeed, EMBLEM, and 30+ top operators. Our team is based in Paris, Buenos Aires, and soon Miami.

Create solid foundations for our Mobile technology and deliver exceptional mobile applications. Be critical in defining what “Mobile” means in the Mobile-First company.

Youll be our second mobile engineer. Youll work side by side with Pablo (Founding Mobile Engineer) to build the foundations, the present, and the future of mobile here.

Say hi to Pablo

Your job is to build the best mobile experience for thousands of entrepreneurs running their business from their phone. We care about speed, polish, and always improving.

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

• Work closely with designers, backend engineers, and business stakeholders

• Define, build, and improve the tools and architecture behind our mobile app

• Ship high-quality apps fast, while always improving UX and performance

• Monitor usage and performance to identify whats missing or broken

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

1. Mobile engineering

• Youve built and shipped mobile apps using React Native

• Youre comfortable with both iOS and Android

• Youve already worked on a product with a large user base

• You know how mobile talks to the backend and how to debug it

2. Product and design mindset

• You care about good UX and clear UI

• You think in terms of users, not features

• Youve built polished components with strong attention to detail

• You know iOS and Android dont behave the same and plan accordingly

3. 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

4. Team player

• You communicate well and often

• You collaborate with product, design, and backend

• Youre not afraid to challenge decisions if its for the right reason

• Youre comfortable working in English

5. Business sense

• You care about why we build, not just what we build

• You ask the right questions and help shape the roadmap

• You prioritize what brings value to users and to the business

6. Culture fit

• You move fast and dont wait for permission

• You give and take feedback without ego

• You help others, ask for help, and share what you know

• You want to be part of a small team that wants to win

• Youve worked in mobile-first companies

• Youve built or contributed to apps with more than 1 million downloads

• Youre excellent at React Native

• You have 4+ years of experience in mobile

• Youre proactive, autonomous, and know how to fill the gaps

• Competitive salary (in USD or local equivalent)

• Equity package

• Fully remote, with offices in Paris, Buenos Aires, and soon Miami

• 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)

• Option to work from a coworking space if needed

• A tight, ambitious team building something real — fast

Were not remote-only. We expect you to come to the office a few days a week, or a few weeks every few months. Most of the team rotates.

The official language is English. Most of the team also speaks Spanish and French.

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 jeremy@themobilefirst.co.

We welcome people from all backgrounds.

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

Compensation Range: $55K - $80K

Information :

• Company : The Mobile-First Company
• Position : Senior React Native Engineer
• Location : Buenos Aires, Buenos Aires
• Country : AR