Senior SDET — Build Scalable Testing Platforms

Sur Global; Argentina; Presencial; ARS 85.038.000 - 102.045.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

PTO 15 days

Holidays: Local or US holidays

Descripción de la vacante

Sur Global is seeking a Senior SDET to design and build scalable testing systems and tooling that replicate real production conditions across high-traffic applications.

You will write production-quality code, test performance/reliability at scale, and integrate automated validation into CI/CD workflows while working with AWS, Google Cloud, and Cloudflare. Strong English communication and independent problem solving are essential.

Formación

• Strong professional software engineering experience with the ability to independently design, build, and maintain software systems.
• Strong coding skills in TypeScript, Python, or comparable modern programming languages.
• Experience building automated testing systems, engineering tooling, testing infrastructure, or similar software-driven quality solutions.
• Hands-on experience with load testing, performance testing, stress testing, synthetic testing, or large-scale application validation.
• Experience working with applications or platforms serving millions of users, ideally at multi-million or tens-of-millions scale.
• Experience working with cloud-hosted applications and infrastructure using AWS, Google Cloud, Cloudflare, or comparable platforms.
• Strong understanding of DevOps, platform engineering, infrastructure, scalability, and modern software deployment practices.
• Experience with CI/CD and integrating automated validation into continuous integration and deployment workflows.
• Experience with Infrastructure as Code using Terraform, Pulumi, or similar technologies.
• Strong understanding of application performance concepts including latency, bandwidth, throughput, scalability, reliability, and infrastructure optimization.
• Ability to independently investigate complex technical problems and build solutions with limited oversight.
• Strong written and spoken English with the ability to communicate technical decisions and collaborate effectively with a distributed engineering team.

Responsabilidades

• Design and build scalable testing systems, platforms, and infrastructure that replicate real-world production conditions.
• Develop software and tooling to test application performance, reliability, scalability, and infrastructure behavior at high traffic volumes.
• Build and maintain load, performance, stress, and synthetic testing capabilities for applications serving millions of users globally.
• Create testing environments and processes that provide confidence that new code and infrastructure will scale successfully in production.
• Write high-quality code using TypeScript, Python, or similar languages to build testing tools, automation, and supporting systems.
• Design tests that identify performance bottlenecks related to latency, bandwidth, application speed, infrastructure capacity, and resource utilization.
• Integrate automated testing and quality validation into CI/CD pipelines and engineering workflows.
• Work with cloud-hosted applications and infrastructure across platforms such as AWS, Cloudflare, Google Cloud, or similar providers.
• Use Infrastructure as Code tools such as Terraform, Pulumi, or equivalent technologies to support repeatable and scalable testing environments.
• Partner closely with platform engineers to understand system architecture, production behavior, and infrastructure constraints.
• Analyze test results and production-like workloads to identify scalability risks before changes reach real-world traffic.
• Help establish the technical standards, systems, and processes for a new engineering-focused testing function.

Conocimientos

TypeScript

Python

CI/CD

Terraform

Pulumi

AWS

Google Cloud

Cloudflare

Load testing

Performance testing

SRE

Documentation

Herramientas

Terraform

Pulumi

Descripción del empleo

Sur Global is seeking a Senior SDET to design and build scalable testing systems and tooling that replicate real production conditions across high-traffic applications.

You will write production-quality code, test performance/reliability at scale, and integrate automated validation into CI/CD workflows while working with AWS, Google Cloud, and Cloudflare. Strong English communication and independent problem solving are essential.