Software Engineering Specialist/NFT Lead

• Product 1: Handles mobile calls, including call forwarding, rejection, and charging.


• Product 2: Handles mobile data sessions, including protocol conversion, session correlation, and network-topology protection.


• Product 3: Sends notifications to subscribers through SMS, email, push notifications, and other protocols based on incoming requests and remote-server availability.

Define and Lead the NFT Strategy

• Develop comprehensive strategies for performance, load, soak, and failover testing across all products.


• Ensure coverage for telecom-specific behaviors, including session surges, protocol latency, message bursts, and failover scenarios.

Design and Execute NFT Scenarios

• Create realistic, high-load test scenarios for mobile calls, data sessions, and notification-delivery workflows.


• Simulate complex operator environments, including network latency, bandwidth constraints, and protocol interactions.

Identify and Analyze Performance Issues

• Detect bottlenecks in production and staging environments.


• Localize issues such as high CPU load, memory leaks, locked threads, database-related problems, and network-related problems.


• Reproduce identified issues in controlled test environments.


• Collaborate with developers to resolve performance and reliability issues.

Measure and Optimize System Behavior

• Track key performance indicators, including:
  
  
  
  • Throughput
  
  
  • Latency
  
  
  • CPU and memory utilization
  
  
  • Garbage-collection performance
  
  
  • Database-query performance
  
  
  • Network I/O efficiency
  
  
  
  


• Provide tuning recommendations across Java, databases, operating systems, hardware, and configuration layers.

Own and Improve NFT Tooling and Automation

• Maintain and optimize the non-functional regression suite.


• Reduce execution time and improve the stability of test runs.


• Enhance observability through metrics, logs, dumps, and monitoring dashboards.

Collaborate Across Teams

• Work closely with development teams to ensure that new features meet performance expectations.


• Support pre-production certification activities with operators and cloud deployments.

Must-Have Qualifications

• Strong expertise in performance engineering, particularly for high-load, network-intensive systems.


• Hands-on experience with performance tuning and bottleneck identification in distributed or telecom-grade systems.


• Solid understanding of the OSI model and practical networking fundamentals.


• Experience with relational databases, including:
  
  
  
  • Indexing strategies
  
  
  • SQL tuning
  
  
  • Query optimization under load
  
  
  
  


• Strong Linux knowledge, including an understanding of how Linux uses:
  
  
  
  • CPU
  
  
  • Network resources
  
  
  • I/O and storage
  
  
  
  


• Experience with diagnostic tools and techniques, including:
  
  
  
  • tcpdump for packet capture
  
  
  • Thread dumps
  
  
  • Heap dumps
  
  
  • Java class histograms
  
  
  
  

Preferred Qualifications

• Familiarity with telecom and messaging protocols, including:
  
  
  
  • Diameter
  
  
  • SMTP
  
  
  • SMPP
  
  
  • CAP
  
  
  • MAP
  
  
  
  

• You will be part of a talented team working on challenging projects.


• You will have opportunities to learn about the latest industry trends.


• You will develop non-standard solutions for continuously evolving environments and standards.


• You will have opportunities for personal and professional growth.


• You will work with advanced technologies used across the industry. 

Core Competencies

• Builds valuable customer relationships


• Collaborates effectively across organizational boundaries


• Interacts respectfully with colleagues throughout the organization


• Demonstrates confidence and curiosity


• Demonstrates excellence and professionalism

Functional Competencies

• Analytical thinking and problem-solving


• Creativity and innovation


• Focus on quality


• Technological excellence 

Equal Opportunity Statement