Staff Engineer - Backend & Platform
About the Company
Most tools used by small businesses today were designed for office employees, not for people running a business from their phone.
They are building mobile-first business software designed for real operators, combining a consumer-grade product experience with AI-powered capabilities.
Their products help small businesses manage communication and daily operations directly from their phone.
Today their platform is used by tens of thousands of businesses, with new financial and operational tools currently in development.
The team is distributed across multiple international hubs.
Drive the evolution of their backend technology, infrastructure, and AI capabilities to ensure high performance, scalability, and seamless integration for their mobile applications.
What will you do:
Work closely with their CTO and engineering team to design and evolve the core backend and platform architecture powering their applications.
Lead complex technical initiatives across backend systems, infrastructure, and developer tooling.
Define and implement scalable foundations that enable the team to ship faster while maintaining reliability as the platform grows.
What you’ll be working on
Designing and evolving the backend architecture that powers their products and internal platform.
Building scalable and reliable backend services.
Improving infrastructure, observability, reliability, and deployment workflows across the engineering stack.
Working directly with cloud services such as AWS, Supabase, Cloudflare, or similar technologies.
Creating internal tools, platform capabilities, and shared components that enable engineers to build faster and more safely.
Leading architectural decisions and helping the engineering team scale technically and operationally.
What we’re looking for
Backend Engineering:
Strong expertise in backend development with languages such as Kotlin, Java, Go, Python, or similar.
Proven experience building and operating scalable backend systems in production environments.
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.
Systems Architecture:
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 with monitoring and observability tools such as Datadog, New Relic, or similar.
Platform & Infrastructure
Experience designing and improving developer platforms, CI/CD pipelines, or internal engineering tooling.
Strong understanding of cloud infrastructure and production environments.
Experience improving system reliability, performance, and operational visibility.
How you think
You care about why things are built, not just how they are built.
You ask thoughtful questions, challenge ideas when needed, and help shape what comes next.
You think in terms of user value and business impact.
How you work
You communicate clearly, give feedback without ego, and support the growth of the people around you.
You move fast, take ownership, and operate comfortably in ambiguous environments.
You are comfortable working in English and collaborating in a small team pursuing ambitious goals.
What matters to us
You have worked in product companies.
7+ years of experience building and operating large-scale backend systems.
Experience owning or influencing architectural decisions across teams.
You are proactive, autonomous, and comfortable operating in early-stage startup environments.
You can communicate in English, which is the team’s primary working language.
What we offer
Competitive salary (in USD or local equivalent).
Equity package.
Quarterly team retreats abroad.
Travel to company hubs for onboarding and collaboration.
Laptop and work setup of your choice.
Coverage for private health insurance for US or LATAM hires.
An ambitious team building and shipping real products quickly.
If this type of environment and challenge resonates with you, they would be excited to meet you.
- Department
- Engineering
- Role
- Sr. Software Engineer
- Locations
- Buenos Aires
- Remote status
- Hybrid
About Thaia
Boutique recruiting agency specializing in sourcing, selecting, and placing top-tier tech talent for companies across Latin America.