L2 CS/VAS Engineer

Job Summary

As a L2 VAS Engineer, you will play a critical role in managing and supporting IOTA Core Signalling networks, troubleshooting complex issues, and ensuring seamless integration of new services for global customers. You will collaborate with cross-functional teams, provide advanced technical support, and contribute to process improvements to deliver high-quality services within agreed SLAs. Your work will directly impact customer satisfaction and service excellence.

Key Responsibilities

• Manage the IOTA Core signalling networks ensuring high availability and performance. 
• Troubleshoot and resolve issues on VAS nodes including: SMSC, Location Based Services, 
• Troubleshoot and resolve issues on Core CS nodes including HLR/HLR-FW, HSS/HSS-FE, CUDB, STP, DEA/DSC/DRA. 
• Provide technical support to sales, marketing, project managers, and customers, including pre-sales activities and supervision of core network implementations. 
• Develop, manage, and implement automation scripts to streamline operations. 
• Verify and support configuration change implementations. 
• Analyze risk and assess impact of new service integrations or design changes. 
• Coordinate with L1 support, Engineering, and other teams to resolve complex technical issues. 
• Deliver remote support and troubleshooting for integration engineers, customers, and third-party partners. 
• Create, review, and update processes and procedures for new configurations or common issue fixes. 
• Actively participate in problem management processes when required. 
• Provide 24x7 on-call support, when needed, to assist the L1 team. 
• Coordinate, support, and execute proactive and reactive maintenance activities to ensure service quality within SLAs. 
• Prepare and deliver KPI reports and dashboards to track performance.

Minimum Requirements

• Bachelor’s degree in Telecommunications, Computer Information Systems, or related field. 
• 3 to 5 years of experience in the Telecom Core Network domain. 
• Solid knowledge of mobile telecom networks and signaling. 
• Good understanding of IP networking principles (experience in IP networking is a plus). 
• Proven hands-on experience and strong understanding of at least one of the following technical areas (multiple areas strongly preferred): 
• • Core CS: MSC/MSC Server, STP, HLR/HLR-FE, CUDB, HSS/HSS-FE, DEA/DRA/DSC, APG 43/43L, IMS, Protocol Analyzer, SS7, SIGTRAN, Diameter, SIP, VoLTE, CCDM, 5G Core;
  • VAS: SMSC, SMPP, SMS over SGd/IMS, Location Based Services (3G & 4G);
  • Tools: OSIX;
• Experience with Ericsson products (STP, HLR/HLR-FE, CUDB, HSS/HSS-FE, DEA/DRA/DSC) is a plus. 
• Good knowledge of Linux; Google Cloud, OpenStack, and Kubernetes experience is a plus. 
• Scripting skills (Python, Bash) are a plus. 
• Availability for on-call rotations. 
• Proficiency in English. 

Preferred Requirements

• Quick reaction times with strong problem-solving capabilities. 
• Excellent communication and collaboration skills in multicultural teams. 
• Perseverance and strong documentation skills. 
• Practical mindset with a focus on advising, helping, and developing others. 
• Tact, diplomacy, ambition, and self-confidence. 
• Strong analytical and technical thinking abilities.

Why Join Aeris 

• Work with some of the world’s most recognised automotive brands. 
• Influence the future of connected mobility, IoT security, and vehicle digitalization. 
• Be part of a high-performance team driving major strategic wins in a rapidly evolving market. 
• Competitive compensation and growth opportunities.

Aeris is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, gender, sexual orientation, gender identity or expression, religion, national origin, marital status, age, disability, veteran status, genetic information, or any other protected status.
As part of our hiring process, Aeris may conduct background checks to verify the information provided in your application and assess your suitability for the role. The scope and type of checks will comply with the applicable laws and regulations of the country where the position is based. Additional detail will be provided via the formal application process.