Job Description

GoTo Meeting | Dresden, Germany | 20h/week | €16/hour

About the Role

Join our RTC (Real-Time Communication) backend services team at GoTo Meeting and help strengthen our SIP infrastructure testing capabilities. We're seeking an advanced student developer to build comprehensive load testing and automation solutions for our in-house SIP-based components, focusing initially on PSTN connection handling and expanding to automated functional testing for video communications.

Your Mission

You'll research, design, and implement automated testing solutions for our SIP protocol infrastructure. Starting with load testing capabilities for components handling hundreds of concurrent PSTN connections, you'll create dynamic, scalable test clients and later extend this work to automate existing manual test suites for SIP video functionality.

Key Responsibilities:Research and evaluate SIP testing tools and frameworks (including SIPp and alternatives)Design and implement SIP test clients with dynamic scaling capabilities for load testing scenariosCreate solutions for audio streaming using pre-recorded files with existing codecsIntegrate SIP testing capabilities into our TypeScript-based testing framework (wrapper approaches or alternative integration methods)Replace manual functional test suites with automated SIP video testingDeploy and orchestrate tests within our Kubernetes environmentDocument methodologies, tools evaluation, and maintain comprehensive test coverageCollaborate with backend teams to ensure realistic test scenarios against our in-house SIP servers

Technical EnvironmentProtocols: SIP (Session Initiation Protocol) for voice and video communicationsFramework: TypeScript-based testing infrastructure with flexibility for integration approachesInfrastructure: Kubernetes clusters on AWS and OCIScale: Dynamic load testing supporting hundreds of concurrent connectionsTesting Focus: Load testing for PSTN components, functional testing automation for SIP videoTarget Systems: In-house SIP backend servers and audio backend infrastructure

What We're Looking ForRequired:Currently enrolled Master's student (or equivalent) at a German universityStrong autonomous working skills and research capabilitiesSolid TypeScript development experienceProficiency with git as modern version control systemExperience real-time communications conceptsKubernetes and containerization knowledge preferredFluent English (German is a plus but not required)EU work authorization or valid German work permit for students

Preferred:

Understanding of VoIP technologies and SIP protocol fundamentalsHands-on experience with SIPp or similar SIP testing toolsKnowledge of audio/video codecs and RTP (Real-time Transport Protocol)Understanding of telecommunications concepts and load testing methodologiesExperience with test automation and framework integrationFamiliarity with cloud-native testing approaches

What We OfferCompetitive compensation: €16/hour for 20 hours/weekFlexible duration: October 2025 - December 2026Complete setup: All necessary hardware, software, and development tools providedHybrid approach: minimum of 2-3 office days per week in Dresden with remote flexibilityMentorship: Dedicated local supervisor and collaboration with experienced RTC engineersReal impact: Your work will directly improve testing coverage for critical communication infrastructureLearning opportunity: Deep dive into SIP protocols, load testing, and scalable test automation

Technical Challenges You'll TackleResearch & Discovery: Evaluate modern SIP testing tools and integration approachesDynamic Scaling: Build test scenarios that dynamically scale from single connections to hundredsFramework Integration: Design seamless integration with existing TypeScript testing infrastructureAutomation: Transform manual functional tests into reliable, repeatable automated workflowsPerformance: Establish meaningful load testing patterns for real-world PSTN traffic simulationExtensibility: Create foundations that can evolve from audio load testing to video functional testing

Work ArrangementLocation: Dresden office (2-3 days/week required)Schedule: Flexible 20 hours/week arrangementTeam: Collaboration with RTC backend engineers and QA specialistsNote: If running parallel to Master's thesis, we're open to discussing timeline adjustments

Application ProcessReady to advance telecommunications testing infrastructure? Send us:Your CV highlighting relevant technical experience and any VoIP/SIP knowledgeBrief cover letter explaining your interest in SIP protocol testing and automationExamples of previous projects, especially involving network protocols, testing frameworks, or research workCurrent enrollment confirmation

At GoTo, you’ll find the flexibility, resources, and support you need to thrive—at work, at home, and everywhere in between. You’ll work towards a shared goal with an open-minded, cohesive team that’s greater than the sum of its parts. We’re committed to creating an inclusive space for everyone, because we know unique perspectives make us a stronger company and community. Join us and be part of a company that invests in your future, where together we’ll Be Real, Think Big, Move Fast, Keep Growing, and stay Customer Obsessed. Learn more.

Note: This position requires enrollment at a German university. International students must possess valid work authorization in Germany.
Apply now and help ensure reliable communication experiences for millions of users worldwide!