Senior Application Support Engineer (L2/L3) - Telecom Systems, Infosys, Helsinki
About this role
Senior Application Support Engineer (L2/L3) - Telecom Systems
Infosys is a global leader in next-generation digital services and consulting. We enable clients in more than 59 countries to navigate their digital transformation. With over four decades of experience managing complex enterprise environments, we help organizations modernize their technology landscapes and accelerate digital innovation. Our approach combines deep industry expertise with cloud, data, and AI capabilities to deliver resilient, future - ready solutions.
Job Overview:
Our client Infosys is seeking an experienced Senior Application Support Engineer (L2/L3) to support, maintain, and develop enterprise applications used across telecom systems. The role focuses on ensuring stable operations, resolving technical issues, and contributing to the performance and ongoing development of applications running on diverse technology stacks. This is a fixed-term (approx. 6 months) full-time hybrid position based in Helsinki, Finland, starting as soon as possible.
Responsibilities
- Provide L2/L3 support, maintenance, and development for enterprise applications involving JBoss, PL/SQL, Atoll (Forsk), PHP, PowerShell, JavaScript, and C++
- Troubleshoot issues and perform hands-on L2/L3 operations and RCA
- Support automation and performance optimization activities
- Participate in future integrations with platforms such as Kafka, MariaDB, and Cassandra
- Contribute in 24×7 operations and on-call support
- Maintain high customer orientation and quality awareness
- Qualifications and skills:
- 12+ years of experience in application support, enterprise applications or telecom systems
- Proficiency with Atoll (Forsk), Actix (Forsk), JBoss, PL/SQL, PHP, PowerShell, JavaScript and C++
- Experience integrating monitoring platforms with ticketing/notification tools
- Excellent verbal and written communication skills
- A high degree of initiative and flexibility
- Additional skills that are beneficial:
- Kafka, MariaDB and Cassandra