Interval - Senior Platform Performance QA Engineer

QA Engineer is needed in Berlin, Germany.

Client: Interval

Location: Berlin, BE, de

Contract: Contract

Job Description

This is a remote position for a Senior Platform Performance QA Engineer. The role involves supporting the delivery of a large-scale, cloud-native internal platform designed to accelerate the development and deployment of software products. The platform provides application teams with self-service capabilities for infrastructure, data, service lifecycle management, application build and delivery, as well as operational services, deployed in a hybrid cloud environment spanning both private and public clouds.

Responsibilities

Performance Planning & Strategy

• Analyse and interpret non-functional requirements relevant to platform performance.
• Identify dependencies across platform components and services.
• Define performance testing strategies in line with system architecture and usage patterns.

Testing & Execution

• Set up performance and load testing environments and toolchains.
• Develop and run automated performance tests (stress, endurance, spike).
• Monitor system behaviour under load to detect bottlenecks and anomalies.

Reporting & Quality Assurance

• Document and report performance defects and scalability issues.
• Track resolution and revalidate performance-related bugs.
• Deliver detailed performance QA reports with metrics, trends, and risk assessments.

Requirements

Eligibility

• Residency in the EU or UK.

Must-Have Experience

• Proven experience in performance/load testing of network, backend, API, and web UI components within large-scale projects or programmes.
• Proficiency in Python, Java, Go, or Bash scripting.
• Experience in debugging and building applications in C/C++/Go/Java.
• Strong knowledge of source control, build tools, and CI/CD systems.
• Hands-on experience with Docker and containerised environments.
• Proficiency with JMeter or similar performance testing tools.
• Linux/Unix testing expertise.
• Knowledge of the software development lifecycle and Agile/Scrum methodologies.
• Experience with DevOps practices, CI/CD pipelines, and infrastructure automation.
• Strong communication and stakeholder coordination skills.

Must-Have Language Skills

• Fluent English (C1 level or above).

Preferred Experience

• Experience with multi-cloud environments and cloud-native testing approaches.
• Knowledge of Kubernetes, container orchestration, and infrastructure-as-code.
• Experience implementing or customising test automation frameworks.

Additional Information

Location: Remote (occasional travel to the client office in Germany required)

Start Date: 15/09/2025

Contract Type: Freelance / Contract.

Benefits: As a freelancer/contractor with us, you will enjoy flexible working hours and the freedom to choose your own projects. Our platform gives you access to exciting projects across various industries and supports your career advancement. You’ll benefit from competitive pay and a dedicated team to assist with any questions. Work independently and utilise our strong network to achieve your professional goals.