5G Telecom Systems Architect
First seen by Alion on Oct 26, 2026.
At Ericsson Nikola Tesla, we don’t just follow technology—we shape it. With nearly 3000 professionals, mostly from STEM fields, we’re a powerhouse of innovation built on over 75 years of experience. As the region’s leading R&D center and a leading exporter of software development services, we blend deep expertise with bold ideas—lighting the way toward a more connected, secure, and intelligent future. Beyond our cutting-edge ICT solutions in the telecom sector, we’re also shaping the future in healthcare, transport, public services, and multimedia. Our innovative technologies make a real difference—enhancing everyday life and delivering meaningful value to communities.
We are looking for a 5G Telecom Systems Architect to join our team developing Ericsson’s industry-leading 5G radio products and solutions. You will become part of our team focusing on software architecture for control functions such as connection setup, mobility, load management, and traffic control.
5G networks will enable scenarios such as driverless vehicles, remote surgery, and industrial automation by providing unmatched reliability, reduced latency, increased capacity, and improved Quality of Service (QoS).
In this role, you will work in a multinational environment, learn something new every day, take initiative, and drive system and product evolution.
Location: Zagreb, Osijek
What you’ll be doing:
- Analyze and understand customer requirements
- Develop high-level solutions and value-based arguments
- Prepare system specification documentation
- Support the development team during execution
- Monitor 3GPP standardization developments
- Assist Product Managers and Customer units in customer communications
We are looking for:
- Strong abstract thinking abilities
- Experience in software development and/ or telecommunications is a plus
- Capability to design and propose system architectures
- Excellent communication and collaboration skills
- Proficiency in spoken and written English
- Bachelor's or master's degree in telecommunications, electrical engineering, computing, mathematics, or physics.
We offer:
You won’t just work on cutting-edge technology—you’ll be part of a team that values your ideas, supports your growth, and makes sure you enjoy the journey along the way. Here’s what you can look forward to:
- Smooth start – a company laptop, and a mobile phone with great plan.
- Flexibility – hybrid work and flexible hours that fit your lifestyle.
- Career growth – level up with mentoring, scholarships, and continuous learning.
- Performance rewards – annual awards, performance-based bonuses, innovation incentives, and a holiday allowance.
- Commute covered – full reimbursement for public transportation.
- Beyond basic health – regular medical check-ups, supplementary and additional health insurance, and well-being programs.
- Family support – 2000 EUR newborn gift, kindergarten subsidy, and extra days off for family needs.
- Referral reward – earn a bonus for bringing great talent.
- Meal perks – 100 EUR monthly meal allowance and access to our on-site restaurant in Zagreb.
- Life beyond work – join sports, cultural, and community activities.
- Active lifestyle – stay active with a partially subsidized Multisport card and access to ENT Health Hub, our on-site fitness space with exercise equipment in Zagreb.
- Time to recharge – enjoy compensatory time off during the Christmas holidays.
- And much more.
Please submit your application, including your CV, written in either Croatian or English. Any personal projects (on GitHub or similar) are also welcome.
Croatian citizenship or a work permit for Croatia is mandatory.
Candidates will be evaluated and contacted after passing the initial screening.
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