Senior SDET: Scale Testing & Performance Platform Engineer

Sur; Philippines; On-site; PHP 3,488,000 - 4,185,000; Full time

Benefits offered by this job

Salary: $5,000 to $6,000 USD per month

PTO: 15 days

Holidays: Local or US holidays

Job summary

Sur is seeking a Senior Software Development Engineer in Test (SDET) to build testing systems and tooling for a high-scale technology platform. You will write production-quality code and simulate real-world workloads to validate performance and reliability across applications serving millions of users.

Collaborate with platform engineers, design scalable testing environments, and integrate automated validation into CI/CD.

Qualifications

• Proven ability to design, build, and maintain software systems independently.
• Strong coding skills in TypeScript and Python.
• Experience building automated testing systems and testing infrastructure.
• Hands-on load, performance, stress, or synthetic testing experience.
• Experience with cloud-hosted apps at large scale.
• Familiarity with CI/CD and IaC tools.

Responsibilities

• 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, Google Cloud, Cloudflare, 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

Skills

TypeScript

Python

Load testing

CI/CD

Cloud platforms

Tools

Terraform

Pulumi

AWS

Google Cloud

Cloudflare

Job description

Sur is seeking a Senior Software Development Engineer in Test (SDET) to build testing systems and tooling for a high-scale technology platform. You will write production-quality code and simulate real-world workloads to validate performance and reliability across applications serving millions of users.

Collaborate with platform engineers, design scalable testing environments, and integrate automated validation into CI/CD.