Staff Software Engineer

thaia®︎; Buenos Aires; Presencial; ARS 179.641.000 - 269.461.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Equity package

Team retreats abroad

Travel for onboarding

Private health insurance coverage

Laptop provided

Descripción de la vacante

thaia backs a mobile-first backend platform and is seeking a Senior Backend Engineer to design and evolve the core architecture powering our applications. You will work closely with the CTO and engineering teams to scale systems, improve reliability, and drive platform evolution.

You will lead complex initiatives across backend services, infrastructure, and developer tooling, build scalable, observable architectures, and help teams ship faster while maintaining quality.

Formación

• 7+ years of experience building and operating large-scale backend systems.
• Strong backend development with Kotlin, Java, Go, or Python in production.
• Deep understanding of distributed systems, reliability, and performance optimization.

Responsabilidades

• Design and evolve the backend architecture powering our products and internal platform.
• Build scalable backend services and leading architectural decisions across teams.
• Improve infrastructure, observability, reliability, and deployment workflows; collaborate with cloud services.

Conocimientos

Kotlin

Java

Go

Python

Distributed systems

AI integration

Herramientas

Datadog

New Relic

Descripción del empleo

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.