Subject Matter Expert - SDM

Reposted 3 Days Ago
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2 Locations
Remote or Hybrid
Senior level
Software
The Role
Owns quality and execution of Live Network Intervention activities for customer mobile core networks. Reviews and approves plans, procedures, scripts, data sources, KPIs, and other implementation artifacts; supervises delivery teams, manages incidents, leads troubleshooting, and assesses solution-level risks. The role applies extensive 4G/5G Mobile Core and Subscriber Data Management expertise, contributes to automation, monitors project performance, and ensures high-quality network service delivery.
Summary Generated by Built In

Driving quality execution for our customers is critical for the long-term success of Nokia and customer satisfaction is the main measure of this objective. In this role, you will ensure the success of a Live Network Intervention by taking responsibility for the quality and accuracy of the LNI artifacts, procedures, scripts needed to execute the planned activities and supervise LNI execution.

Responsibilities
  • As a subject matter expert in the Delivery Assurance team, you will own and be accountable for all aspects of the LNI activity.  
  • You will accomplish this by leveraging your extensive Mobile Core expertise, best practices, and lessons learned. This role will require you to look across product domains and measure the impact and risks of LNI activities at a solution level.
  • Review and approve LNI plans including data sources like CiQ, implementation procedures, scripts and other LNI artifacts prior to implementation on the customer network.
  • Review and establish the Key Performance Indicators (KPI) that will be used to measure impacts to the network based on LNI work to be performed.
  • Capture details of the review and as needed contribute findings to lessons learned and best practices.
  • Execute (as needed) & supervise the services delivery teams during the maintenance window and manage incidents during the activity.
  • If needed, join/ lead troubleshooting group for specific Live Network intervention
  • Contribute to Automation programs focused on LNI preparations and executions.
  • Ensure high-quality project delivery by monitoring delivery KPIs, execution plans, and overall project performance.
Qualifications

You have:

  • Bachelor’s degree in computer science or a related field, with 7+ years of experience in architecting software, IT, or telecom solutions.
  • Proven experience in defining architecture and delivering those solutions to the market.
  • Extensive experience in telecommunications (4G/5GSA) with a deep understanding of Mobile Core network elements and technologies, their evolution, and the latest industry trends.
  • Understanding of the interfaces and interactions between Mobile Core solution elements including 3rd parties.
  • Experience with Subscriber Data Management functions: SDM elements HSS/HLR, AUSF_UDM, EIR, SDL
  • Competences on TCP/IP & main Protocols: Diameter (Gx-Rx-Sy)/ HTTP2/ SIP / Sigtran / SOAP-XML / SNMP.
  • Competences in Java/J2EE, Linux, DBMS, web technologies, cloud/virtualization, Kubernetes, containers, SDN, and data analytics.
  • Experience of Unix/Linux OS’s & Databases (Aerospike/MariaDB/Oracle/SQL)
  • Advanced competence of NW Architectures/Products & International standards: 3GPP/ETSI.
  • Cloud experience (VNF, CNF) & related products (CBIS/CBAM – NCS/NCOM) or platform VMware/OpenStack.

Nice to have:

  • Ability to work independently, manage multiple projects simultaneously, and thrive in a fast-paced, dynamic work environment.
  • Ability to develop scripts / automation using AI tools as needed and high degree of proficiency in Kubernetes.
  • Good Communication skills which shall enable appropriate articulation of Issues / risks and their mitigation.
About Us
Advancing connectivity to secure a brighter world.

Nokia is a global leader in connectivity for the AI era. With expertise across fixed, mobile and transport networks, powered by the innovation of Nokia Bell Labs, we’re advancing connectivity to secure a brighter world. 

Learn more about life at Nokia.


Our recruitment process

We act inclusively and respect the uniqueness of people. Our employment decisions are made regardless of race, color, national or ethnic origin, religion, gender, sexual orientation, gender identity or expression, age, marital status, disability, protected veteran status or other characteristics protected by law. We are committed to a culture of inclusion built upon our core value of respect.

If you’re interested in this role but don’t meet every listed requirement, we still encourage you to apply. Unique backgrounds, perspectives, and experiences enrich our teams, and you may be just the right candidate for this or another opportunity.

The length of the recruitment process may vary depending on the specific role's requirements. We strive to ensure a smooth and inclusive experience for all candidates. Discover more about the recruitment process at Nokia. 

Skills Required

  • Bachelor's degree in computer science or a related field
  • 7+ years of experience architecting software, IT, or telecommunications solutions
  • Experience defining architecture and delivering solutions to market
  • Extensive telecommunications experience, including 4G/5G SA and Mobile Core network elements
  • Understanding of interfaces and interactions between Mobile Core solution elements and third parties
  • Hands-on experience with Subscriber Data Management elements including HSS/HLR, AUSF/UDM, EIR, and SDL
  • Competence with TCP/IP, Diameter, HTTP/2, SIP, SIGTRAN, SOAP/XML, and SNMP
  • Competence in Java/J2EE, Linux, DBMS, web technologies, cloud/virtualization, Kubernetes, containers, SDN, and data analytics
  • Hands-on experience with Unix/Linux operating systems and Aerospike, MariaDB, Oracle, or SQL databases
  • Advanced knowledge of network architectures, products, and 3GPP/ETSI standards
  • Hands-on cloud experience with VNF/CNF and related products or VMware/OpenStack platforms
  • Ability to work independently, manage multiple projects, and operate in a fast-paced environment
  • Ability to develop scripts and automation using AI tools
  • High proficiency in Kubernetes
  • Strong communication skills for articulating issues, risks, and mitigations

Nokia Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Nokia and has not been reviewed or approved by Nokia.

  • Equity Value & Accessibility — Equity programs include a global employee share purchase plan with company matching and multi‑year share awards. These mechanisms broaden participation and tie rewards to long‑term outcomes.
  • Healthcare Strength — Health coverage includes major medical plans with supplementary options such as vision, legal services, and care navigation. The range of offerings indicates comprehensive support for medical needs.
  • Parental & Family Support — A global policy grants paid leave for new parents regardless of gender and provides structured return‑to‑work support. Company‑paid life insurance further strengthens family protection across regions.

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The Company
HQ: Espoo
132,624 Employees

What We Do

At Nokia, we create technology that helps the world act together. As a trusted partner for critical networks, we are committed to innovation and technology leadership across mobile, fixed and cloud networks. We create value with intellectual property and long-term research, led by the award-winning Nokia Bell Labs. Adhering to the highest standards of integrity and security, we help build the capabilities needed for a more productive, sustainable and inclusive world.

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