Principal Firmware Engineer

Coherent Corp.

Firmware Engineer designing and developing control algorithms for optical communication products while coaching junior engineers in a hybrid work environment.

Posted 7/8/2026full-timeHorsham • Pennsylvania • 🇺🇸 United StatesLead💰 $96,888 - $188,892 per yearWebsite

Tech Stack

Tools & technologies

Assembly

About the role

Key responsibilities & impact

Design and develop control algorithms, features and f/w test processes used across multiple products.
Perform unit functional tests and robustness tests.
Ensure firmware documentation is accurate and up to date.
Work with optical, hardware and test engineering teams to continuously improve firmware performance, execution efficiency, and development processes.
Coaching junior engineers on firmware developing.
Drive coding reviews and practices across team
Responsible for resolving sustaining issues, fixing bugs in legacy products, and implementing new customer-requested features.

Requirements

What you’ll need

University degree in Electrical Engineering or Computer Science
8+ years of experience in embedded systems real time control systems development with microcontrollers and FPGA hardware
Experience in Optical Communication industry is preferred.
Expert on C++ programming in embedded system, and experience on assembly programming language preferred.
Experience in Object Oriented design.
Practical experience across the entire Agile development lifecycle, including continuous integration, continuous deployment (CI/CD), and collaboration through DevOps practices.
Experience in lab bench debugging tools oscilloscopes, logic analyzers.
Should be able to work and deliver on an aggressive schedule.

Benefits

Comp & perks

Health insurance
401(k) matching
Professional development opportunities
Flexible work arrangements

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

Embedded SystemsReal Time Control SystemsC++ ProgrammingAssembly ProgrammingObject Oriented DesignContinuous IntegrationContinuous DeploymentFirmware DocumentationControl AlgorithmsRobustness Testing

Soft Skills

CoachingCollaborationProblem SolvingCommunication