Mobile Network Engineer

About Qualysoft

· 25 years of experience in software engineering, established in Vienna, Austria
· Active in Romania since 2007, with office in central Bucharest (Bd. Iancu de Hunedoara 54B)
· Delivering End to End IT Consulting Services - From Team Augmentation and Dedicated Teams to Custom Software Development
· We deliver scalable enterprise systems, intelligent automation frameworks, and digital transformation platforms
· Cross-industry experience by sustaining global players in BSFI (Banking, financial services and insurance), Telecom,Retail & E-commerce, Energy and Utilities, Automotive, Manufacturing, Logitics, High Tech
· Global Presence: Switzerland, Germany, Austria, Sweden, Hungary, Slovakia, Serbia, Romania, and Indonesia
· International team of 500+ software engineers
· Strategic partnerships: Microsoft Cloud Certified Partner, Tricentis Solutions Partner in Test Automation and Test Management, Creatio Exclusive Partner, Doxee Implementation Partner
· Powered by cutting-edge technologies: AI, Data & Analytics, Cloud, DevOps, IoT, and Test Automation.
· Project beneficiaries ranging from large-scale enterprises to startups
· Stable growth and revenue increase year over year, a resilient organisation in volatile IT market conditions
· Quality-first mindset, culture of innovation, and long-term client partnerships
· Global and local reach – trusted by key industry players in Europe and the US

Responsibilities:
• Prepare and complete technical documentation such as LLD (Low Level Design) and Communication Matrix;
• Integrate the existing network with new technical solutions deployed in the Mobile Core PS area;
• Configure, validate, and commission Core PS equipment and services;
• Perform acceptance testing (functional and integration);
• Provide technical support to operations teams for troubleshooting and incident analysis;
• Analyze and resolve issues occurring during delivery and post-implementation phases;
• Collaborate with vendors, integrators, and internal technical teams;
• Ensure compliance with technical standards and operational procedure;
• Perform other role-specific activities depending on ongoing projects.

Qualifications:
• Experience with Mobile Core PS networks, with focus on: GGSN, SPGW, PCRF / Policy & Charging;
• Strong knowledge of: IP protocols, routing & switching, Mobile network architectures (2G/3G/4G – 5G is an advantage), L2/L3 networking, TCP/IP, VLAN, BGP, OSPF (nice to have);
• Experience in delivery, integration, and testing activities;
• Strong analytical and advanced troubleshooting skills;
• Experience working with technical documentation (LLD, HLD – advantage);
• University degree in IT / Telecommunications;
• Relevant experience in a similar role (Network Engineer / Core Engineer);
• Good communication skills and ability to work in a team;
• Structured, solution-oriented mindset;
• Ability to work in critical environments while meeting deadlines.

Nice to Have:
• Relevant technical certifications (Cisco, Nokia, Ericsson, Huawei, etc.);
• Experience in Core PS modernization or expansion projects.

What We Offer

· Premium medical package
· Lunch Tickets & Pluxee Card
· Bookster subscription
· 13th salary and yearly bonuses
· Enterprise job security with a startup mentality (diverse & engaging environment, international exposure, flat hierarchy) under the stability of a secure multinational
· A supportive culture (we value ownership, autonomy, and healthy work-life balance) with great colleagues, team events and activities
· Flexible working program and openness to remote work
· Collaborative mindset – employees shape their own benefits, tools, team events and internal practices
· Diverse opportunities in Software Development with international exposure
· Flexibility to choose projects aligned with your career path and technical goals
· Access to leading learning platforms, courses, and certifications (Pluralsight, Udemy, Microsoft, Google Cloud)
· Career growth & learning – mentorship programs, certifications, professional development opportunities, and above-market salary