The Mobile-First Company

Staff Engineer – Backend & Platform

The Mobile-First Company

full-time

Posted on:

Location Type: Hybrid

Location: Buenos Aires • Argentina

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Job Level

Lead

Tech Stack

AWSCloudDistributed SystemsGoJavaKotlinPython

About the role

  • Work closely with our CTO and engineering team to design and evolve the core backend and platform architecture that powers all our applications.
  • Mentor and support other engineers.
  • Lead complex technical initiatives across backend systems, data infrastructure, CI/CD pipelines, and developer tooling.
  • Define and implement scalable foundations that allow the team to ship faster and operate reliably as we grow.
  • Designing and evolving the backend architecture that powers our products and internal platform.
  • Building scalable and reliable services.
  • Improving infrastructure, observability, reliability, and deployment workflows across the engineering stack.
  • Working directly with cloud services (e.g., AWS, Supabase, Cloudflare).
  • Leading technical decisions and helping the team scale operationally.

Requirements

  • Strong expertise in backend development with languages like Kotlin, Java, Go, Python, or similar.
  • Proven experience building and operating scalable backend systems in production.
  • Deep understanding of distributed systems, reliability, and performance optimization.
  • Experience integrating AI models or AI-powered workflows into real product systems is a strong plus.
  • Strong experience designing scalable architectures and making high-impact technical decisions.
  • Ability to design systems that remain reliable, observable, and maintainable as the company scales.
  • Experience designing and improving developer platforms, CI/CD pipelines, or internal engineering tooling.
  • Strong understanding of cloud infrastructure and production environments.
  • Experience with monitoring and observability tools such as New Relic, Datadog or similar.
Benefits
  • Competitive salary (in USD or local equivalent)
  • Equity package
  • 10-day team retreats abroad every quarter
  • 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
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
backend developmentKotlinJavaGoPythondistributed systemsperformance optimizationscalable architecturesCI/CD pipelinesdeveloper tooling
Soft Skills
mentoringleadershiptechnical decision-makingcollaboration