Software Integration & Test Engineer

SOFTWARE INTEGRATION & TEST ENGINEER

Mesh Optical Technologies was founded on the belief that optical photons will be at the center of advanced technologies in the coming century. Making advanced technology ubiquitous means building at scale, and that’s exactly what we’re doing at Mesh.

We are seeking a Software Integration & Test Engineer to own the software that automates, controls, and monitors our production lines and test infrastructure. You will build the systems that drive production equipment, orchestrate test execution, and ensure every process step is observable, traceable, and reliable at volume.

RESPONSIBILITIES

Own the software that automates production lines and controls hardware interfaces between factory tools, stations, instruments, and workflows

Own the software that automates end-of-line production test systems and development lab test environments, ensuring deterministic execution and reliable results at throughput

Develop and maintain test automation frameworks used for qualification, validation, and manufacturing, including instrument control, sequencing, and pass/fail determination

Build and maintain data acquisition pipelines for test results, process logs, and system metrics, ensuring production data is captured, stored, and accessible for analysis

Implement health monitoring, fault detection, and alerting across manufacturing and test software systems

Support root-cause analysis for line interruptions, process excursions, test escapes, and automation failures

Work closely with process and manufacturing engineering to ensure every process parameter is fully observable, controllable, and traceable across the line

Support CI-driven test and integration environments that validate hardware, firmware, and software changes prior to production deployment

Extend automation and control systems to support new product introductions, process changes, and production ramps

Interface with mechanical, electrical, optical, and manufacturing engineering teams to resolve integration issues that span hardware and software boundaries

BASIC QUALIFICATIONS

Bachelor's or Master's degree in computer engineering, computer science, electrical engineering, or a related discipline

1+ years of hands-on software development experience (internships, co-ops, and substantive project experience qualify)

Strong proficiency in Python, with experience writing production-quality code

Experience developing and operating software in Linux environments

Familiarity with CI systems, automated testing pipelines, and deployment workflows

Demonstrated engineering intuition, critical thinking, and comfort with ambiguity

Willingness to work extended hours and weekends as needed

PREFERRED SKILLS AND EXPERIENCE

Experience interfacing software with manufacturing equipment, instrumentation, or controls systems (e.g., instrument control via GPIB, USB, serial, or Ethernet)

Strong proficiency in C or C++ in addition to Python

Strong understanding of networking fundamentals (TCP/IP, serial protocols, device communication)

Experience with data acquisition, time-series data, or production database systems

Experience designing software systems for observability, fault tolerance, and long-term maintainability

Experience with hardware-in-the-loop testing, test automation frameworks, or automated validation systems

Background in hardware-centric or high-volume manufacturing environments

Experience with containerization, infrastructure-as-code, or deployment automation

Familiarity with MES systems, production traceability, or factory data infrastructure

Experience with version control (Git) and collaborative software development workflows

COMPENSATION AND BENEFITS:

Pay range: Software Integration & Test Engineer: $115,000.00 - $140,000.00/per year

Title and base salary are determined on a case by case basis commensurate with experience and merit.

In addition to base salary, compensation for this role includes:

Eligibility for long-term incentives including company stock options and discretionary bonuses awarded for exceptional achievements.

Comprehensive medical, vision, and dental insurance with significant cost covered by the company for yourself and dependents.

Paid parental leave and flexible PTO (3 weeks accrued vacation and 10 company holidays per year).

401(k) retirement plan access.

Relocation assistance to sunny Los Angeles.