> Markdown version of [/jobs/ext/2712480-systems-software-engineer](https://www.wearedevelopers.com/jobs/ext/2712480-systems-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Systems Software Engineer - **Company:** Picarro, Inc - **Location:** Santa Clara, CA, United States - **Salary:** $120,000.0 - $130,000.0 - **Contract:** Permanent contract - **Skills:** Agile Methodology, Application Frameworks, Business Logic, Automation of Tests, Unit Testing, Command-Line Interface, Code Review, Computer Programming, Continuous Integration, Database Applications, Software Debugging, Linux, Python (Programming Language), Linux System Administration, NumPy, Performance Tuning, Software Construction, Software Engineering, Software Systems, Software Organization, Data Processing, Reliability of Systems, Git, Pytest, Git Flow, Information Technology, Asynchronous Programming, Data Pipelines - **Published:** September 4, 2026 - **Apply:** https://startup.jobs/systems-software-engineer-picarro-inc-8961686 ## About the Role * Bachelor's degree in Computer Science, Engineering, Physics, Mathematics, or related field * Strong proficiency in Python with experience building production-quality software * Solid understanding of Linux operating systems and command-line tools * Experience with collaborative software development (Git, code reviews, Agile workflows) * Strong understanding of software engineering best practices (modularity, testing, documentation) * Experience writing unit tests and building testable software systems Technical Skills * Advanced Python programming * Strong experience with software development workflows (Git, branching, CI/CD concepts) * Unit testing frameworks (pytest or equivalent) * Linux system usage and scripting * Familiarity with modern Python libraries and constructs, including but not limited to * NumPy * Pydantic * asyncio * typing * pathlib * itertools * collections Ability to design clean, maintainable, and reusable software components, * Experience building or supporting scientific or instrumentation software systems * Exposure to data analysis, data modeling, or visualization workflows * Experience working in hardware-software integrated environments * Familiarity with performance optimization and debugging complex systems * Strong understanding of asynchronous programming concepts in Python * Experience contributing to shared software frameworks or platforms ## Description Picarro is seeking a Systems Software Engineer to design, develop, and maintain robust software systems that support scientific instrumentation and data-driven applications. This role requires strong software engineering fundamentals, experience building reliable and maintainable systems in Python and Linux environments, and a solid understanding of software development best practices. The ideal candidate is comfortable working across system layers-from application logic to data processing-and can contribute to both software infrastructure and analytical workflows., * Design, develop, and maintain systems-level software in Python * Build reliable, testable, and maintainable code using modern software engineering practices * Develop and maintain unit tests and automated test frameworks * Work in collaborative Agile development environments using Git-based workflows * Develop and optimize system components running on Linux-based platforms * Build and support data pipelines, tools, and internal software frameworks * Collaborate with cross-functional engineering teams (hardware, systems, data, and science teams) * Support debugging, performance tuning, and system reliability improvements * Contribute to architecture decisions and software design reviews, We are the world's leader in timely, trusted, and actionable data using enhanced optical spectroscopy. Our solutions are used in a wide variety of applications, including natural gas leak detection, ethylene oxide emissions monitoring, semiconductor fabrication, pharmaceutical, petrochemical, atmospheric science, air quality, greenhouse gas measurements, food safety, hydrology, ecology, and more. Our software and hardware are designed and manufactured in Santa Clara, California and are used in over 90 countries worldwide based on over 65 patents related to cavity ring-down spectroscopy (CRDS) technology and are unparalleled in their precision, ease of use, and reliability. ## Related Videos - [Building an agentic software factory: How we rebuilt product development at Pipedrive](https://www.wearedevelopers.com/videos/100261-building-an-agentic-software-factory-how-we-rebuilt-product-development-at-pipedrive) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [Vectorize all the things! Using linear algebra and NumPy to make your Python code lightning fast.](https://www.wearedevelopers.com/videos/562-vectorize-all-the-things-using-linear-algebra-and-numpy-to-make-your-python-code-lightning-fast) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Data Science on Software Data](https://www.wearedevelopers.com/videos/162-data-science-on-software-data) - [Docker exec without Docker](https://www.wearedevelopers.com/videos/1094-docker-exec-without-docker) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [The 13 Best Python Libraries for Developers in 2025](https://www.wearedevelopers.com/magazine/371-the-13-best-python-libraries-for-developers-in-2025) - [Software Engineer Career: Things You Should Know](https://www.wearedevelopers.com/magazine/143-software-engineer-career-things-you-should-know) - [Top Characteristics of a Software Engineer](https://www.wearedevelopers.com/magazine/166-top-characteristics-of-a-software-engineer) - [Is Software Engineering Hard?](https://www.wearedevelopers.com/magazine/448-is-software-engineering-hard)