JOB DETAILS
Fault Management L1 Engineer
CompanyNokia
LocationNoida
Work ModeOn Site
PostedSeptember 29, 2026
About The Company
Infinera is now part of Nokia.
Infinera is revolutionizing telecommunications networks with innovative, industry-leading connectivity solutions. Our offerings include high-end subcomponent technology, systems for network infrastructure, automation software, advanced optical compound semiconductor manufacturing, & professional services. As a global supplier, we empower mobile service providers, internet content providers, cloud operators, submarine operators, governments & enterprises to scale network bandwidth, boost service innovation, and automate network operations. We are committed to continuously expanding and enhancing our world-class offerings to meet the changing needs of our customers.
Our connectivity solutions are powered by the world’s best embedded & pluggable optical engines, which are designed, developed & manufactured in Infinera’s U.S.-based optical semiconductor fabrication center and are application-optimized for edge, metro, long-haul, and submarine transport networks. Our agile, open, compact & modular networking platforms enable network operators to rapidly and easily take advantage of best-in-class technology. Our software automation solutions optimize traffic flows and automate workloads to enable network operators to cost-effectively deliver secure bandwidth to their customers where and when needed. With these solutions, our goal is to create a connected world with unlimited bandwidth for everyone – everywhere, always, and instantly.
What Inspires Us?
A connected world with unlimited bandwidth for everyone – everywhere, always & instantly.
What Motivates Us?
Delivering innovative and impactful coherent optical technologies and open optical solutions that unlock new value for our customers.
What Drives Us?
To be a valued investment for our shareholders’ money, our customers’ CapEx and our employees’ time by delivering an unrivaled customer experience from an inclusive culture of innovation for our customers.
About the Role
The Fault Management L1 Engineer 3 will be responsible for the operations and maintenance of our Core IMS Network, ensuring optimal performance and troubleshooting any issues that arise. This role requires end-to-end knowledge and coordination skills, as you will be handling call-related issues and collaborating with other teams for analysis and resolution. You will also be involved in customer complaint handling, trace capturing, and analysis, utilizing tools like Wireshark.
Responsibilities
- Perform O&M and optimization of core network technologies, including SBC, TAS, CFX, and Cloud.
- Coordinate and collaborate with the IMS Network team, especially for SBC-related call issues, and work with the Hub location for TAS/CFX analysis.
- Troubleshoot, monitor, and trace interfaces using Wireshark or internal system logs to identify and resolve issues.
- Handle customer complaints, capture and analyze Wireshark traces, and provide timely solutions.
- Ensure smooth operations and maintenance of the Core IMS Network, including router and NT HLR management.
- Stay updated with 4G VOLTE and LTE network technologies, understanding call flows and protocols.
- Coordinate with various teams, including Planning, Customer Care, and Solutions, to ensure seamless operations.
- Escalate and manage emergency situations effectively, following established protocols.
- Maintain a strong understanding of interfaces and protocols such as SIP, DIAMETER, DNS, ISUP, MAP, and INAP.
Qualifications
Must Have:
- Bachelor's degree with 6-10yrs of experience in SBC, TAS, CFX, Router, and NT HLR.
- Strong knowledge of IMS Networks and SBC technologies, including troubleshooting call-related issues.
- Proficiency in Wireshark for trace capture and protocol analysis.
- Experience in 4G VoLTE and LTE network technologies, including call flows and signaling protocols.
- Relevant telecom/networking certifications or a degree in Networking, Telecommunications, or a related field.
Nice-to-Have:
- Prior experience in a similar telecom operations/support role.
- Proactive, self-motivated mindset with a commitment to continuous learning and professional development.
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.
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.
Some of our benefits:
- Flexible and hybrid working schemes
- A minimum of 90 days of Maternity and Paternity Leave, with the option to return to work within a year following the birth or adoption of a child (based on eligibility)
- Life insurance to all employees to provide peace of mind and financial security
- Well-being programs to support your mental and physical health
- Opportunities to join and receive support from Nokia Employee Resource Groups (NERGs)
- Employee Growth Solutions to support your personalized career & skills development
- Diverse pool of Coaches & Mentors to whom you have easy access
- A learning environment which promotes personal growth and professional development - for your role and beyond
Key Skills
IMS NetworkSBCTASCFXWiresharkVoLTELTESIPDIAMETERDNSISUPMAPINAPTroubleshootingNetwork optimizationCall flow analysis
Categories
TechnologyEngineeringCustomer Service & Support
Benefits
Flexible and hybrid working schemesMaternity and paternity leaveLife insuranceWell-being programsEmployee resource groupsEmployee growth solutionsCoaching and mentoring
Job Information
📋Core Responsibilities
The Fault Management L1 Engineer is responsible for the operations, maintenance, and optimization of the Core IMS Network. This includes troubleshooting call-related issues, performing trace analysis using Wireshark, and coordinating with cross-functional teams to ensure network performance.
📋Job Type
full time
📊Experience Level
5-10
💼Company Size
1913
📊Visa Sponsorship
No
💼Language
English
🏢Working Hours
40 hours
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