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, Allo, 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 .

What will you do:

- Work side by side with our CTO to own our security and compliance roadmap, from strategy to execution.
- Lead our offensive security track with external partners: scope pentests, triage findings and drive the fixes across infrastructure and code.
- Partner with our Infra & Platform team to design, harden and scale the backend and cloud infrastructure behind our products.

What you’ll be working on

- Securing our cloud infrastructure (e.g., AWS, Supabase, Cloudflare): IAM, networking, encryption, secrets and logging.
- Authentication, authorization and data protection across our apps.
- Building security into our CI/CD: code, dependency and secret scanning that keeps pace with a team that deploys every day.
- Writing the code, automations and tooling that fix vulnerabilities and keep them from coming back.
- Owning our compliance controls (HIPAA, GDPR, SOC 2) and closing the technical gaps.
- Monitoring, alerting and incident response for a real-time telephony and AI product.

What we’re looking for

1. Backend Engineering:

- Proficiency in backend development with expertise in languages like Kotlin, Java, Go, Python or similar.
- Track record of building and maintaining scalable and reliable backend systems.
- Experience with AI is a strong plus, especially in applying models to real-world product use cases and optimizing performance in production environments.

- Security:

- Hands‑on security work in production: you’ve fixed vulnerabilities, implemented authentication and authorization (OAuth, JWT, RBAC), or worked in a security, fraud or platform team.
- Strong knowledge of secure coding practices and the OWASP Top 10.
- Security work beyond your day job (CTFs, bug bounties, certifications, side projects) is a strong plus.

- Infrastructure:

- Hands‑on experience with AWS or a similar cloud, networking and production environments.
- Familiarity with Infrastructure as Code, CI/CD and monitoring tools like New Relic or Datadog.

- 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

- 4+ years of experience building and operating backend systems in production, with hands‑on responsibility for application or infrastructure security.
- You understand production. You consider reliability, observability and recovery alongside security, especially when changes affect live customer calls.You’re proactive, autonomous, and know how to fill the gaps
- You prioritize by real-world risk. You can explain what needs fixing today, what can wait, and why, in terms of our users, their data and our business.
- 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.
- You’ve worked in product companies

What we offer

- Competitive salary (in USD or local equivalent)
- Equity package
- 10-day team retreats abroad every year
- 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

#J-18808-Ljbffr

📌 Software Engineer - Security & Infrastructure (Buenos Aires)
🏢 The Mobile-First
📍 Buenos Aires