Software Engineer – Security & Infrastructure 🇦🇷
Join a mobile-first company as a Software Engineer focusing on security and infrastructure in a hybrid work environment.
Posted by employer 10 hours ago
First seen on Joblaze 1 hour ago
Last verified on the company career page 1 hour ago
Skills & Technologies
What you'll build
- Own security and compliance roadmap
- Lead offensive security track
- Secure cloud infrastructure
- Build security into CI/CD
- Monitor and respond to incidents
Must have
- 4+ years of experience in backend development
- Hands-on security work in production
- Strong knowledge of secure coding practices
Nice to have
- Experience with AI
- Security work beyond day job
- Familiarity with Infrastructure as Code
AI in the day-to-day
Our product uses AI for features like answering missed calls and transcribing conversations.
Requirements
- Experience
- 4+ years
Not disclosed in this posting: compensation, visa sponsorship.
Benefits
Joblaze summary
In this role, the Software Engineer focuses on enhancing the security and compliance of the company's mobile-first business software, collaborating closely with the CTO to implement strategies and execute security measures. Key skills include backend development in languages like Kotlin or Python, along with hands-on experience in security practices and cloud infrastructure management. This position is ideal for someone with over four years of experience in product companies, who is proactive and comfortable in a fast-paced, small team environment.
Joblaze insights
- Listed today — first seen on Joblaze October 27, 2026. Last confirmed on The Mobile-First Company's careers page October 27, 2026.
Quick facts
- Is the Software Engineer – Security & Infrastructure 🇦🇷 role remote?
- It's hybrid — The Mobile-First Company expects some on-site time in Buenos Aires, Argentina.
- How much experience is required?
- At least 4 years of relevant experience for this Software Engineer – Security & Infrastructure 🇦🇷 role.
- Where is the role based?
- The Mobile-First Company is hiring for this position in Buenos Aires, Argentina.
- What's the tech stack?
- Joblaze extracted these technologies from the posting: AWS, CloudFlare, Datadog, Go, JWT, Java.
- What seniority level is this role?
- The Mobile-First Company targets mid-level candidates for this position.
- Is this full-time or contract?
- Full-time for this Software Engineer – Security & Infrastructure 🇦🇷 role at The Mobile-First Company.
From the original posting
We’re changing that.
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
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.
2. 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.
3. 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.
4. 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.
5. 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 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 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
We welcome people from all backgrounds.
Standard company text repeated across The Mobile-First Company's postings is omitted here.