Senior Professional Services Core Network Engineer (Packet Core)


Aspire Technology is an innovative Professional Services and Software Development company, with core competence in mobile telecommunications. Our solutions are delivered to Network Operators and Vendors, Managed Service Providers and Technology Partners globally.

Our customers include global mobile operators and the world’s leading suppliers of telecommunication products and services.

At Aspire Technology, we have some brilliant people who have helped us to secure a number of large-scale contracts with global customers. We are thrilled to be expanding our team and we have some amazing opportunities for ambitious telecommunications engineers. You will be joining a team of highly motivated and professional experts and will prosper in a company whose culture is about our people and delivering exceptional expertise to our valued customers.

As a Senior Core Network Services Engineer, you will provide Technical Services and Support to commercially deployed Mobile Packet Core Networks for our customers’ networks. You will develop strategies and provide consultation to customers on network expansions and optimising their network performance. You will troubleshoot technical issues in the Mobile Packet Core Network and design workarounds and solutions to resolve these issues if needed. You can expect to become involved in the latest 5G Packet Core deployment project with our customers.

The position will include the management/monitoring and operations & maintenance of existing commercially deployed telecommunications networks infrastructure and the design, installation, configuration, integration, testing, and commissioning of new telecommunications infrastructure.

Your responsibilities will include:

  • Participation in mobile operator network detailed planning, deployment, monitoring, operations & maintenance, improvement, and optimisation projects (ranging from legacy to 5G networks)
  • Participation in requirements gathering projects, and implementing operator requirements
  • Troubleshoot and resolve problems to optimise our customers networks
  • Customer communication and workshops
  • Mentoring and sharing knowledge with less experienced engineers
  • Team leading for small groups of engineers
  • 2nd and 3rd level incident and problem management if needed

Required Experience:

Candidates for the above role will have broad and deep experience within telecommunications and Data Networks (Ericsson and/or Huawei expertise primarily, Nokia expertise is an advantage), covering areas like hardware, software and network architecture and topologies for GSM, 3G, LTE & 5G Systems.

You will have deep and proven experience in the following areas:

  • PS/EPC nodes (SGSN-MME, GGSN and S/PGW, PCRF, DPI)
  • End 2 End understanding and knowledge of Mobile Data Networks (3G, 4G, 5G)
  • Considerable experience in deploying and troubleshooting of Mobile Packet Core Network – focusing on O&M, surveillance, KPI analysis, signalling monitoring, detailed call tracing and troubleshooting
  • Good in-depth knowledge in the 3GPP basic call flows
  • Expert knowledge in signalling (SS7, SIGTRAN, GTP, SIP/SDP, Diameter), transport (SCTP, UDP, TCP, ICMP) and application protocols (MAP, TCAP, DNS).
  • Solid IP knowledge
  • Familiarity with Linux OS and administration
  • Scripting Expertise (for example, Shell, Perl, Python)
  • Proven demonstrable examples of where you have driven complex coordination and technical issues to conclusion, exhibiting a ‘get up and go’ attitude to problem resolution
  • A solid team player with the ability to lead others and yet work independently
  • Strong focus on Quality and Customer satisfaction
  • Flexible and Adaptable to developing business needs and work patterns
  • Flexible to work under pressure and to meet deadlines
  • Ability to work analytically and coordinate investigations. A problem solver.
  • Highly developed interpersonal skills with ability to communicate effectively with customers and colleagues
  • Experience working with modern IT environments and latest industry tools.
  • Have proven skills in technical document writing (status reports, technical bulletins)
  • Multivendor experience is an advantage
  • Experience with IMS is an advantage
  • Knowledge of 3GPP 5G core architecture is an advantage
  • Experience with Networking is an advantage
  • Experience with OpenStack, VMWare (TCP and/or ESXi), Red Hat OpenShift and Kubernetes is an advantage

Required Education:

  • A Bachelor of Science or Engineering (Degree) in IT, telecommunications or equivalent, plus experience in the telecommunications industry


At Aspire Technology you can expect:

  • A competitive salary with a performance-related bonus
  • Extensive technical and business training with the possibility to gain external industry standard certifications
  • Opportunity for career advancement through our structured career progression model
  • Opportunity to travel internationally
  • Opportunity to work in newly emerging technologies such as 5G and IOT
  • Flexible working hours
  • Subsidised and very active sports and social club

Working with Aspire Technology

At Aspire Technology we believe that to build a great company, you must have great people and great people are at the heart of our company. We work with smart, motivated and innovative people who have a great attitude. You will love working on telecommunications technology, are passionate about delivering to our customers and really enjoy working with your Aspire colleagues.

We value people who are proactive at driving solutions and place customers and colleagues first. As part of the team, you can expect to:

  • Work with globally respected Aspire engineers who are experts in their field to create and deliver innovative and pragmatic solutions for our customers
  • Drive the operations and performance of our customers’ network
  • Get the opportunity to work on-site with our customers as you drive the operations and performance of their networks
  • Get the opportunity to work across leading and emerging telecoms technologies and domains
  • Develop your technical leadership capabilities and provide technical expertise to your work colleagues and our customers
  • Have ownership, responsibility and accountability for your work
  • Participate in international operator network deployments and maintenance/support programmes
  • Progress your career rapidly as you will receive first class training and mentoring
  • Work in an environment where knowledge sharing is a fundamental part of the company culture and where engineers strive to help each other out at all time

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