Senior/Staff Software Engineer - C++

SirenOpt•San Leandro, CA

6d•Onsite

About The Position

SirenOpt is seeking a Senior / Staff Software Engineer to design and build the high-performance C++ and systems software that powers our manufacturing intelligence platform. In this role, you will help ensure the reliability, performance, and scalability of SirenOpt's software as it runs on real customer production lines, while contributing to the architecture and technical foundations needed for a growing commercial product. Working closely with firmware, hardware, and application engineering teams across every phase of product development, you will design and optimize multi-threaded, asynchronous software on Linux, analyze and improve performance across CPU, memory, storage, networking, and I/O, and debug complex issues that span software and hardware boundaries. You will also read, maintain, and extend existing Python tooling used for automation, testing, and data analysis, and take ownership of software components throughout the full product development lifecycle. This position is well suited for a self-driven engineer who takes ownership of their work, writes clean and maintainable modern C++ (C++17/20), and enjoys understanding how software interacts with operating systems and hardware to achieve exceptional performance. You will contribute at a high level in a collaborative, fast-moving engineering environment, participating in architecture, technical design, and code reviews as you help ship robust software for commercial products.

Requirements

Bachelor's or Master's degree in Computer Science, Computer Engineering, Electrical Engineering, or a related technical field
5+ years of professional software development experience (Senior) or 8+ years (Staff)
Strong proficiency in modern C++ (C++17/20)
Working knowledge of Python with the ability to read, understand, maintain, and modify existing Python code
Strong experience developing software on Linux
Strong understanding of: Operating systems, Memory management, Multi-threading and concurrency, Software architecture, Performance optimization
Excellent debugging and problem-solving skills
Experience using Git and modern software development workflows

Nice To Haves

Experience designing and developing large-scale commercial software systems
Experience developing and shipping software for commercial products
Experience with scientific instrumentation or data acquisition systems
Experience collaborating with firmware and hardware engineering teams
Familiarity with low-latency, real-time, or data acquisition software systems
Experience developing desktop applications using Qt Widgets and Qt Charts
Familiarity with scientific computing, signal processing, physics, or machine learning
Experience with Linux systems programming
Experience with performance profiling tools such as perf or Valgrind
Experience with CMake and GDB
Familiarity with Embedded Linux
Experience with hardware communication interfaces such as Ethernet, USB, PCIe, or Serial
Familiarity with CI/CD and automated testing

Responsibilities

Design, develop, and optimize high-performance software using modern C++ (C++17/20)
Develop scalable, reliable, and maintainable software for Linux-based systems
Design multi-threaded and asynchronous software architectures
Analyze, profile, and optimize software performance across CPU, memory, storage, networking, and I/O
Read, understand, maintain, and enhance existing Python code used for automation, testing, and data analysis
Collaborate closely with firmware, hardware, and application engineering teams
Participate in software architecture, technical design, and code reviews
Debug complex system-level issues across software and hardware boundaries
Take ownership of software components throughout the product development lifecycle