QA Engineer Load

ng-voice GmbH; Deutschland; Hybrid; EUR 60.000 - 80.000; Vollzeit

Zusammenfassung

A telecommunications solutions provider in Germany is seeking a Performance Test Engineer to enhance the quality of their products. This role involves participating in performance testing, system monitoring, and problem analysis using industry-standard tools like SIPp and IXIA IXLoad. The ideal candidate has solid QA experience, IMS expertise, and strong programming skills in Python and Bash. This position offers a hybrid work culture and a commitment to work-life balance.

Leistungen

Flexible working hours

Diversity commitment

Home office budget

Mobility and fitness benefits

Qualifikationen

• Solid experience in Software Quality Assurance Engineering, particularly in Load and manual testing.
• Proficiency in IMS architecture and SIP, DIAMETER analysis.
• Experience in setting up testing environments, both hardware and software.

Aufgaben

• Participate in performance testing using SIPp, IxLoad, and other tools.
• Monitor system dashboards for resource usage and IMS metrics.
• Analyze and debug issues across multiple solutions to ensure reliability.

Kenntnisse

Load testing

Manual testing

SIP analysis

DIAMETER analysis

Python

Bash

Tools

SIPp

IXIA IXLoad

Postman

Docker

Kubernetes

Jobbeschreibung

About us

About us
Committed to building the next generation of 100% software-based mobile networks, combining DevOps with telecommunications expertise, ng-voice is creating innovative mobile infrastructure solutions and making them accessible for operators and enterprises that want to deploy future-proof networks.

As a member of our QA team, you will play a crucial role in shaping the quality of our products. You'll work with industry-standard tools, build your own test setups, and enhance the stability of our solution. Ideally, you have experience with telco test equipment and a solid understanding of IMS, LTE networks, and related protocols.

To support our rapid growth, we are seeking a Performance Test Engineer (m/f/d) to join our team in Hamburg. In this role, you will work with technologies such as 4G, LTE, Transport networking, TCP/UDP, IPSec, SIP, DIAMETER, VoIP, and Video/IP protocols across various cloud platforms (Docker/Kubernetes).

Tasks

What you’ll do:

• Participate in Performance Testing: You will play a key role in our system testing activities by planning, performing, and executing a variety of performance tests utilizing our in-house framework, along with essential tools such as SIPp, IxLoad, and Seagull.
• System Monitoring: You will monitor the cluster dashboards for components’ CPU usage, memory usage, disk usage and internal resources like private and shared memory. Additionally, you will monitor IMS metrics such as Registrations, Calls, SMS and analyze trends of failure codes.
• Problem Analysis and Debugging: You will be responsible for analyzing and debugging issues across multiple, complex solutions, ensuring the reliability and performance of our systems. This includes identifying crashes, memory leaks, deadlocks, reproducing them and provide diagnostics data to get them fixed.
• Quality Assurance and Regression Testing: You will take ownership of the product testing process, ensuring the quality and readiness of new features, as well as existing ones, through comprehensive regression testing.
• Framework Development and Debugging: You will contribute to the development and debugging of our load testing framework, ensuring its effectiveness and reliability.
• Process Improvement: You will continuously help to refine and adapt our testing processes, concepts, and solutions, driving innovation and efficiency in our quality assurance practices.

Requirements

Requirements
Our Ideal New Colleague:

• Hands-on QA Experience: You have solid experience in Software Quality Assurance Engineering, with proficiency in both Load and manual testing.
• IMS Expertise: You are aware of the core workings of the IMS architecture and well versed in SIP and DIAMETER analysis
• Test Environment Setup: You have experience in setting up and configuring both hardware and software test environments, ensuring they are optimized for testing.
• Industry-Specific Tools: You have experience with industry-specific test environments and tools, such as SIPp, IXIA IXLoad and API testing tools like Postman.
• Programming and Scripting: You are skilled in programming and scripting, particularly in Python and Bash.

Nice to Have:

• Agile/Scrum Experience: You have experience working in an Agile/Scrum development environment.
• Modern Testing Approaches: You are familiar with modern testing methodologies, such as context-driven testing, rapid software testing, and session-based testing.
• Containerization: You have experience in developing and deploying software using containers, specifically with Docker and Kubernetes.

Benefits

Benefits
A little more about our culture and why you should join;

• Work-Life-Balance is a priority: Flexible working that suits you - we live and breathe a hybrid remote culture and don't mind where and when you work
• We are committed to building a diverse team that represents a variety of backgrounds, perspectives, and skills in a traditionally not very diverse industry
• We offer you the culture of a fast-growing start-up with the maturity of an enterprise company
• We are more interested in your experience and knowledge than formal degrees
• Entrepreneurial culture and flat hierarchies
• Mobility benefit, fitness benefit, language class benefit and wellness benefit (for full-time employees)
• Home office budget (for full-time employees)