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Senior Software Engineer

Job in San Diego, San Diego County, California, 92189, USA
Listing for: San Diego Stealth Startup
Full Time position
Listed on 2026-09-05
Job specializations:
  • Software Development
    C++ Developer, Python, Software Engineer, Embedded Systems/ Firmware/ IoT
Salary/Wage Range or Industry Benchmark: 150000 - 230000 USD Yearly USD 150000.00 230000.00 YEAR
Job Description & How to Apply Below

We are a startup building complex, performance-critical software and hardware systems at the intersection of instrumentation, algorithms, and data. We are looking for a Senior Software Engineer who is equally comfortable writing low-level C/C++ for embedded targets and building higher-level Python applications that tie a system together.

You will write production code that spans from device-level firmware interfaces up through orchestration software that coordinates the electrical, fluidic, and mechanical subsystems of a complex instrument. This is a hands-on engineering role for someone who likes working close to the hardware, enjoys making messy real-world systems behave predictably, and takes pride in clean, well-tested code.

You will work closely with hardware, firmware, algorithm, and application engineers to take instrument subsystems from prototype to production.

What You'll Do

Embedded & Application Software Development

  • Write production-quality C/C++ for embedded targets and resource-constrained environments
  • Build Python applications and services that orchestrate, monitor, and expose instrument behavior
  • Develop and maintain device drivers, hardware abstraction layers, and communication interfaces (serial, USB, Ethernet, CAN, SPI, I2C)
  • Bridge embedded subsystems and higher-level application logic through clean, well-defined interfaces
  • Debug across the stack - from a misbehaving sensor or actuator up to an unhappy application thread
  • Design and implement the software that coordinates electrical, fluidic, and mechanical subsystems into a working instrument
  • Build state machines and control loops that move the system through complex, multi-step protocols reliably
  • Handle the realities of real-world hardware - timing, failure modes, recovery, calibration, interlocks, and safety
  • Define interfaces and contracts between subsystem controllers, the orchestration layer, and the user-facing application
  • Instrument the system so that when something goes wrong on a wet bench at 2am, the logs actually tell you why
  • Develop and deploy on Linux - both desktop and embedded
  • Build and maintain Docker images and containerized workflows for development, testing, and deployment
  • Manage build environments, dependencies, and reproducibility across developer machines and target hardware
  • Debug system-level issues involving processes, devices, networking, and resource contention
  • Write code that other engineers can read, extend, and trust - clear interfaces, sensible abstractions, useful tests
  • Use git fluently for branching, review, bisecting, and clean history
  • Participate in code review as a thoughtful reviewer and a graceful author
  • Build small, sharp tools that make the team faster - not large frameworks that slow them down
Qualifications Required
  • BS in Computer Science or Engineering with 5+ years or MS with 3+ years of professional software engineering experience building production systems
  • StrongC/C++ skills, including comfort reading and debugging existing codebases
  • 5+ years of Python experience and proven ability to design, build, and ship application-level software
  • Hands-on experience with embedded development - talking to real hardware, working with constrained environments, and dealing with the failure modes that come with both
  • Hands-on experience with application development - services, APIs, user-facing tools, or orchestration software
  • Strong Linux skills: comfortable on the command line, debugging system behavior, and working with build tool chains
  • Solid git fundamentals and good code hygiene - clear commits, readable diffs, useful tests, careful reviews
  • Comfortable with Docker and containerized development and deployment workflows
Preferred
  • Experience building multi-component orchestration software for systems that combine electrical, fluidic, and mechanical subsystems (instruments, lab automation, robotics, manufacturing equipment, or similar)
  • Experience designing state machines or control software for multi-step physical protocols
  • Comfort working alongside hardware, firmware, and mechanical engineers - and translating their constraints into software
  • Experience with CI/CD pipelines and build systems (CMake, Make, or similar)
Nice-to-Have
  • Ba…
Position Requirements
10+ Years work experience
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