About the Opportunity
Join our 4G/5G/6G RAN Simulation Services System Team in Poland, where you will shape an internally developed radio channel emulator capable to emulate RF radio channel conditions (pathloss, noise, spatial beams, interference, etc.) in a fully digital test environment so that RAN solutions can be verified without real radios or over-the-air channels. We seek a system minded telecom engineer who can translate RAN test needs into emulatable channel conditions, lead cross site technical discussions, and drive studies from concept to verified solution in a fully digital test environment.
Key Responsibilities• Own the end-to-end lifecycle of RAN studies using the digital radio channel emulator (idea, design, execution, documentation, hand-over).• Define study objectives, scenarios, KPIs and acceptance criteria with product management, system architects and line leadership.• Analyze study results, identify bottlenecks and improvement opportunities, and propose optimizations for the digital channel emulator and connected simulators.• Collaborate with system, software and test engineers so study outcomes are reflected in requirements, architecture and implementation.• Prepare clear, structured study reports and presentations, including recommendations and risk/impact assessments.• Ensure studies follow Ericsson quality, documentation and traceability standards.
Required Competence and Experience• 4G/5G NR radio & PHY/L1: Solid understanding of LTE/NR physical layer (OFDM, modulation/coding, HARQ, reference signals, channel estimation/equalization, link adaptation, power control) and typical FR1/FR2 deployment scenarios.• Radio propagation & channel modelling: Practical grasp of pathloss, shadowing, delay spread, multipath fading, Doppler, interference and spatial correlation, and their impact on KPIs; familiarity with 3GPP channel models (e.g. TDL/CDL) in simulations or lab testing.• MIMO and beamforming: SU/MU-MIMO, massive MIMO and analog/digital/hybrid beamforming; ability to work with antenna arrays, beams, channel matrices and precoding weights.• DSP for communications: Filtering, FFTs, time-frequency transforms, channel convolution, noise modelling, SNR/SINR; experience implementing or analysing PHY algorithms.• System-level RAN understanding: Knowledge of gNB DU-RU split, fronthaul basics (CPRI/eCPRI) and UE-DU-RU interaction, including where channel emulation sits in the chain.• Analytical & communication skills: Ability to turn feature requirements into meaningful test/channel scenarios, justify assumptions, lead technical discussions, and produce structured documentation and presentations.
We work in hybrid model, min. 3 days from office
What do we offer:
- Annual bonus depending on the achievement of the company's goals and results
- Possibility to take advantage of the reduction of tax-deductible costs for creative work
- Financial awards and distinctions
- Private medical care for employee and their family (Medicover)
- Life insurance
- Mental Help Line
- Cafeteria system Pluxee platform: co-financing MultiSport or OK System card, lunch cards, and others
- Sports and integration activities (e.g. Football, Joga, raising team, climbing club)
- Company support (loans and grants)
- Possibility to participate in 3G / 4G / 5G... 6G technology projects
- Opportunity to participate in technical and interpersonal training conducted by international trainers
- Access to recognized learning platforms (Pluralsight, Skillsoft, Coursera)
- Opportunity to work in an international environment, also outside Poland
Skills Required
- Solid understanding of LTE/NR physical layer (OFDM, modulation/coding, HARQ, reference signals, channel estimation/equalization, link adaptation, power control)
- Practical experience with radio propagation and channel modelling (pathloss, shadowing, delay spread, multipath fading, Doppler, interference, spatial correlation) and 3GPP channel models (TDL/CDL)
- Experience with MIMO and beamforming (SU/MU-MIMO, massive MIMO, analog/digital/hybrid beamforming, antenna arrays, precoding)
- DSP competence for communications (filtering, FFTs, time-frequency transforms, channel convolution, noise modelling, SNR/SINR)
- System-level RAN understanding (gNB DU-RU split, fronthaul basics, UE-DU-RU interaction) and where channel emulation fits
- Ability to define study objectives, scenarios, KPIs and acceptance criteria; analyze results and produce structured reports and presentations
- Experience collaborating with system, software and test engineers and following company quality, documentation and traceability standards
- Work in hybrid model, minimum 3 days from office (Poland)
What the Team is Saying
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Ericsson Compensation & Benefits Highlights
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Healthcare Strength — Healthcare coverage includes employer‑verified medical, dental, and vision plans, along with HSAs/FSAs and EAP/mental‑health support. Wellbeing initiatives are highlighted as part of Life at Ericsson.
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Retirement Support — Retirement programs include a 401(k) with company matching that is employer‑verified, with mentions of match levels varying by time and team and pension support in some regions. This is frequently cited as a solid pillar of the package.
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Parental & Family Support — Paid parental leave is described as competitive in many U.S. postings, with examples up to 16 weeks maternity and 6 weeks parental/adoption at 100% pay. Family‑friendly policies and return‑to‑work support are also called out.
Ericsson Insights
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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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.
