Sr Software Engineer – Low Latency

Responsibilities

• Focus on Architecture and solution efficiencies.
• Balances performance, capacity and reliability with core system functionality.
• Identifies potential opportunities for code optimization.
• Provides input for code reviews and helps with environment build deployments, release notes and build notices.
• Reviews code to proactively identify and mitigate potential issues and defects and helps to identify sources of defects as well as troubleshoots various forms of code.
• Writes optimized application modules and unit tests with minimal guidance.
• Understands low-level designs and how to incorporate into the larger application.
• Uses design tools to frequently share and communicate design ideas on larger systems.
• Comfortable using low level tools to examine the system (i.e. packet capture, hardware counters, etc.).
• Utilizes knowledge of modern multi-processor architecture to tune the applications and systems for high throughput and low latency.
• Uses patterns frequently, contributing to best practice and process enhancements.

Skills & Software Requirements

• Ability to evaluate the characteristics of algorithms and data structures for the given constraint.
• Proficiency in Multithreading, concurrent data structures, shared memory, asynchronization, JNI, NIO, HashMap etc.
• Understands queue theory and various designs and implementations to enhance system performance.
• Experience working with networking protocols (UDP, TCP).
• Familiarity with redundancy and fault tolerance techniques.
• Usage of EF_VI, JNI, On-load Solar Flare extension APIs preferred.
• Demonstrate the understanding of thread pinning, interrupts, isolating cores, jitters, numa node, TLB Cache’s etc.
• Familiar with JVM internals and garbage collection tuning.
• Advanced knowledge of Linux kernel/OS internals.