Senior Software Engineer – Low-Latency, Async, Systems Programming, Cloud Security

Tenable

Senior Software Engineer focusing on low-latency systems programming for cloud security at Tenable. Seeking expertise in high-performance code and asynchronous programming.

Posted 6/24/2026full-timeRemote • Maryland, Massachusetts • 🇺🇸 United StatesSenior💰 $137,500 - $183,500 per yearWebsite

Tech Stack

Tools & technologies

JavaRust

About the role

Key responsibilities & impact

Write high-performance, asynchronous, low-latency code that handles massive, non-blocking throughput on a single machine.
Dig into memory profiles, hunt down GC pressure, eliminate allocations, and design highly concurrent event-driven architectures.
Build and refine heavy asynchronous execution patterns, ensuring maximum thread efficiency and minimal latency overhead across massive workloads.
Design, develop, and maintain complex, scalable, and high-performance systems with a focus on non-blocking architectures and highly efficient, maintainable code.
Aggressively reduce memory allocations and GC pressure using profiling tools and advanced allocation techniques.
Identify and troubleshoot production issues, conducting low-level root cause analysis and implementing fixes to ensure strict system reliability.
Analyze and articulate the architectural trade-offs of different design choices.

Requirements

What you’ll need

A proven track record working in the performance-critical domains listed above, specifically dealing with heavy data streams or real-time processing.
Practical, battle-tested experience with asynchronous, event-driven, or multi-threaded programming. You understand how non-blocking I/O works under the hood and how to avoid common concurrency pitfalls.
You don’t just "know" data structures; you understand how computers fundamentally process them. You can easily explain the memory layout, cache-locality, and algorithmic trade-offs of choosing one structure over another from first principles.
Instantly recognize and describe strategies for managing large, fixed blocks of memory (e.g., bitmap allocators, free lists) and mitigating memory fragmentation.
Fluent in bit manipulation and pointer/offset arithmetic. You are capable of calculating the exact metadata and memory overhead of your own code blocks.
A great story about a time you used a memory or CPU profiler to hunt down a low-level bottleneck and solved it with a non-obvious, structural fix.
4+ years of professional experience, primarily leveraged in performance-first environments using C++, C, Rust, C#, or Java.

Benefits

Comp & perks

medical, dental, vision, disability and life insurance
401(k) retirement savings with company match
an employee stock purchase plan
an employee referral program
flexible spending accounts
an Employee Assistance Program (EAP)
education assistance
parental leave
paid time off (PTO)
company-paid holidays
health and wellness events
community programs

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

C++CRustC#Javaasynchronous programmingevent-driven programmingmulti-threaded programmingmemory profilinglow-level root cause analysis

Soft Skills

troubleshootinganalytical thinkingproblem-solvingcommunication