Mobile Core Engineer Private Networks

At Citymesh, we’re not just a telecom company; we’re a European leader in B2B connectivity. From 0G to 5G, we’re reshaping the Belgian telecom market by offering innovative, lean, and tailored connectivity solutions for enterprises, cities, and industries comprising of private and public networks within our extended portfolio.

Are you ready to elevate your career with a telecom pioneer that's redefining the industry? This is your chance! Citymesh is on the lookout for a Core Engineer to join our dynamic team.

Welcome to the Citymesh Core Engineering team! As a Core Engineer for Mobile Networks, you’ll play a crucial role in the implementation, development, testing and optimization of 4G and 5G PLMN currently being rolled out across Belgium. We plan to bring leading B2B mobile services to our customers both in Belgium and internationally. You will support our cutting-edge operations while contributing to innovation in core network technologies services.

We are seeking an enthusiastic and motivated Mobile Core Network Engineer to join our dynamic team. This role focuses on the implementation, testing and operational support. We are rolling out a national network using cutting cutting-edge Nokia mobile core network. The ideal candidate will have a broad range of knowledge on legacy networks up to next-generation cloud based technologies. Here at Citymesh we do not see engineering in specific areas, it is expected that candidates can operate across all domains.

Here's What You'll Dive Into:

• Network Design and Implementation (Supporting Function):

  • Architect, configure, and deploy Nokia-based mobile core network solutions, including 4G EPC (Evolved Packet Core) and 5G Core

  • Collaborate with cross-functional teams to design scalable and future-proof network architectures.

  • Conduct network upgrades, expansions, and migrations with minimal disruption.

• System Integration and Testing:

  • Perform end-to-end integration of Nokia products with third-party systems and networks.

  • Develop and execute test plans for system validation, ensuring compliance with industry standards and operator requirements.

• Optimization and Performance Management:

  • Monitor and analyze network performance using Nokia’s advanced tools and analytics.

  • Identify and resolve network bottlenecks, optimizing throughput, latency, and reliability.

  • Proactively implement enhancements to meet Quality of Service (QoS) objectives.

• Troubleshooting and Support (24/7 on-call):

  • Diagnose and resolve complex issues within the mobile core network, including packet processing, signaling, and connectivity challenges.

  • Provide Level 2/3 support for operational teams, ensuring swift resolution of incidents.

• Collaboration and Innovation:

  • Partner with Nokia, product teams, and other vendors to adopt and integrate the latest technologies, such as Cloud-Native solutions, Network Slicing, Networks-as-Code,

  • Stay updated on advancements in Nokia’s product portfolio and participate in Proof-of-Concept (PoC) projects.

• Documentation and Training:

  • Create and maintain detailed technical documentation, including network diagrams, configurations, and operational guidelines.

  • Provide training and mentorship to other area of the business both in technical and non-technical role

Must Have Qualities & Talents

• Education & Experience:

  • At least 3 years of experience in mobile core network engineering, ideally with a proven track record at a Tier 1 Operator.

  • Hands-on experience with Nokia products such as Cloud Mobility Manager (CMM), Cloud Mobile Gateway (CMG), Shared Data

  • Layer (SDL), or equivalent products from other vendors is a strong advantage.

  • A Bachelor’s or Master’s degree in Telecommunications, Electrical Engineering, Computer Science, or a related field.

• Technical Expertise:

  • In-depth knowledge of 4G/5G Core technologies, protocols (SCTP, GTP, Diameter, HTTP2), and interfaces.

  • Understanding of legacy technologies and protocols (MAP, CAP, SCCP) and their interfaces.

  • Familiarity with roaming, messaging, charging, and lawful interception.

  • Expertise in Core Integration of RAN (4G/5GSA) and Nokia IMS solutions (CFX, NTAS).

  • Proficiency in Subscriber Management and Provisioning via Nokia SDL.

  • Experience with OCS (Online Charging) for voice, data, and messaging traffic.

  • Knowledge of Voicemail, UCaaS PBX systems, and SIM Card Management (OTA, RSP).

  • Competence in using network monitoring and diagnostic tools.

• Languages:

  • Fluency in English is essential, with Dutch considered a strong plus.

• Work Arrangement:

  • A hybrid work model with a minimum presence of two days per week at our Oostkamp office.

What We Offer

At Citymesh you will be part of an enthusiastic and ambitious team in which we greatly value your own input and believe in the growth of each of our employees.

We offer you a great opportunity to work for a fast-growing and innovative employer that operates as a challenger in the Belgian telecom market. Next to this, we also offer a wide range of benefits, including:

• Full-time permanent contract

• Competitive compensation with an extensive package of fringe benefits, such as meal vouchers (€8/day), eco vouchers, health insurance, CAO 90 bonus, year-end premium, net expense allowance. 

• Access to a cafeteria to tailor your benefits to your personal needs.

• Enjoy the perks of a company car complete with a fuel card and explore our enticing bicycle leasing choices.

• A chunky budget to not only level up your skills but to invest in your awesome self. We're all about employee growth and making you even more fantastic

• An exceptionally contemporary workplace, where we prioritize a warm and people-centric atmosphere, ensuring that your daily experience takes center stage.

• We place a strong emphasis on flexibility and hybrid work arrangements to promote a harmonious work-life balance

• You work 40 hours per week. But they really fly by here! And as a result, you get an extra 12 days off per year if you work full-time

• Celebrate good times with our lively events squad! They whip up a variety of happenings, from mouthwatering BBQs and sizzling Friday fry-ups to relaxed after-work socials and an annual family extravaganza, plus a whole bunch of other exciting adventures.

• Our company is a breeze to reach, right by the Oostkamp exit.

Curious for more?

Curious For More? Do you feel addressed by our company and are you ready for a unique experience? Then apply for this vacancy today, or send an email to jobs@citymesh.com