Software Engineer, C++ & Systems

Role: Software Engineer (Early Career) – C++ & Systems

Location: On-Site (San Leandro, CA)

Type: Full-Time

About the Role

SirenOpt is seeking a Software Engineer to help build and maintain the real-time data pipeline behind its sensing platform. This role involves acquiring data from multiple sensors, processing and storing it on Linux-based systems, and delivering it to customer-facing applications. You will work primarily in modern C++ and Python, with mentorship from senior engineers, and will be hands-on with real hardware in the lab for testing and validation.

Key Responsibilities

• Develop and maintain software components in modern C++ (C++17/20) for Linux-based systems, with guidance from senior engineers.
• Implement features, fix bugs, and write unit and integration tests across the data pipeline, from sensor acquisition through processing and storage to services delivering results to applications.
• Write and maintain Python scripts for automation, testing, and data analysis.
• Read, and where needed, modify existing code written in other languages across the codebase.
• Use AI coding tools (e.g., Claude Code, GitHub Copilot) to accelerate development and verify their output through testing, profiling, and code review.
• Run the system on real hardware in the lab to test and validate changes, including setting up sensors and collecting data.
• Participate in code reviews, both receiving and giving feedback, and follow team conventions for code quality.
• Help diagnose and debug issues across software and hardware boundaries, working with firmware and hardware engineers.
• Measure and improve performance of existing code under the direction of senior engineers.
• Document work so that others on the team can build on it.

Requirements & Tech Stack

• Solid foundation in C++, including memory management, references and pointers, the standard library, and basic object-oriented and generic programming.
• Strong ability to read, understand, and write Python, including working within existing Python codebases used for automation, testing, and data analysis.
• Ability to pick up new programming languages quickly.
• Understanding of core computer science fundamentals: data structures, algorithms, operating systems, and concurrency basics.
• Comfortable with the everyday toolchain: Linux command line, build tools (CMake or similar), a debugger, and Git-based workflows (branches, pull requests, code review).
• Hands-on experience using AI coding tools (e.g., Claude Code, GitHub Copilot, Cursor) as part of a real development workflow, and the judgment to review and test their output.
• Comfortable working hands-on with lab and test equipment: setting up sensors, running the system on real hardware, and collecting data for testing and validation.
• Clear written and verbal communication, and the ability to work well with teammates across disciplines.

Qualifications

• Bachelor's or Master's degree in Computer Science, Computer Engineering, Electrical Engineering, or a related technical field (recent graduates welcome).
• 0–2 years of professional software development experience; internships, co-ops, research, and substantial personal or open-source projects count.

Nice to have

• Experience with Qt, gRPC, or Protocol Buffers.
• Familiarity with CI/CD pipelines and automated testing.
• Experience with profiling and debugging tools such as perf, Valgrind, GDB, or sanitizers.
• Familiarity with hardware communication interfaces such as Ethernet, USB, or Serial.
• Contributions to open-source projects.

Compensation & Benefits

• Base Pay Range: $120,000 USD - $160,000 USD
• Equity and Salary compensation depends on experience.
• Health, Dental, Vision plans provided.
• 401k matching provided.
• Time off: 20 days of PTO per year, plus approximately 15 paid US holidays per year.