About this opportunity:
MTAS (Multimedia Telephony Application Server) is a key element of the IMS (IP Multimedia Subsystem), supporting multimedia telephony services, including VoLTE.
Our Characteristics and Dimensioning team is responsible for analyzing the performance impact of new features, defining KPIs, building predictive models, and verifying system capacity and hardware needs, while focusing on Quality of Service, Efficiency and Reliability.
What you will do:
- Analyze and test new software features from a performance perspective
- Define KPIs and create predictive performance models
- Support dimensioning and capacity planning
- Collaborate with development and cross-functional teams
- Contribute to documentation and sales support materials
- Work with Cloud Native and virtualized environments
What you bring:
- Experience in software performance testing and analysis
- MTAS / IMS knowledge and understanding of telecom architecture
- Familiarity with protocols (SIP, Diameter)
- Strong analytical skills
- Experience with performance testing tools
It's an advantage to have some experience in:
- scripting (e.g. Python, Bash, Perl)
- Git, Gerrit
- Jenkins
- system testing tools
- Cloud Native experience
- VMware
What we offer
Salary package
- Cafeteria fringe benefits (yearly amount of gross 840,000 HUF)
- Annual bonus
- Benefits after life events (eg.: childbirth)
Other
- Employee Assistance Program
- Life and accident insurance
- Wellbeing activities
- Company share purchase plan
- Referral program
- All You Can Move partner
Learning & Development
- Continuous learning through trainings, workshops, and conferences
- Internal and external learning & development opportunities
- Language courses
Facilities
- Modern office in the 11th district
- Hybrid working based on our current Home Office Policy
- Laptop and mobile phone
- Free parking in the secured company underground garage
- Bicycle storage, showers and lockers
What happens once you apply?
Click Here to find all you need to know about what our typical hiring process looks like.
We encourage you to consider applying to jobs where you might not meet all the criteria. We recognize that we all have transferrable skills, and we can support you with the skills that you need to develop.
Encouraging a diverse and inclusive organization is core to our values at Ericsson, that's why we champion it in everything we do. We truly believe that by collaborating with people with different experiences we drive innovation, which is essential for our future growth. We encourage people from all backgrounds to apply and realize their full potential as part of our Ericsson team. Ericsson is proud to be an Equal Opportunity Employer. learn more.
Primary country and city: Hungary (HU) || Budapest
Top Skills
What We Do
Ericsson builds the digital connectivity the world relies on. Our technology underpins the mobile networks, platforms, and systems that billions of people, businesses, and societies depend on every day.
We are a global leader in communications technology, delivering mobile network infrastructure, cloud software, and wireless connectivity solutions for service providers and enterprises worldwide. Our networks support connectivity across 180+ countries, helping power everyday communication as well as critical digital services at global scale.
Connectivity has evolved far beyond consumer mobile use. Today, nearly 80% of the world’s population accesses the internet via mobile networks, and Ericsson is helping shape what comes next. We are advancing 5G and 5G Advanced, developing network APIs that open connectivity to the global developer ecosystem, and applying automation and AI to make networks more intelligent, efficient, and resilient.
Ericsson was the first company to launch live 5G networks on five continents, and our 5G platform is now commercially live in 150+ networks across 60+ countries. We also support more than 36,000 enterprise customers, enabling secure, high-performance connectivity for industries such as manufacturing, aviation, logistics, utilities, and public safety, where reliability and performance are mission critical.
Innovation is central to how we work. Ericsson has approximately 28,000 employees in research and development, backed by one of the strongest intellectual property portfolios in the industry with 60,000+ granted patents. Our engineers, researchers, and technologists work across 100+ global R&D sites, helping define how networks evolve and how digital infrastructure is built for the long term.
As the world moves toward a mobile-first, AI-powered, and cloud-driven future, connectivity becomes the foundation for digital transformation across every industry. Ericsson is building that foundation, shaping the future of digital connectivity through technology that operates at global scale and supports real-world impact, today and for what comes next.
Why Work With Us
Ericsson is a place for people who want to work on technology that powers everyday life. You’ll contribute to large-scale systems used every day, tackle complex challenges in live environments, and keep developing your skills and career in your own vision.
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Ericsson Offices
Hybrid Workspace
Employees engage in a combination of remote and on-site work.
Ericsson adopts a hybrid work model globally because we know balance matters. Sometimes things are better in real life. Other times we can be more productive at home. Our hybrid approach gives you the best of both worlds.
