Senior Laser Engineer

About the Company

OLIX is building the next paradigm of AI infrastructure. The OLIX Decode Accelerator 1 (DX-1) is the first accelerator architected specifically for decode, utilizing rack-scale co-design of logic, data movement, packaging, optics, and interconnect to enable a step change in system-level performance.

Responsibilities

• Own the design and development of VCSEL devices and arrays for high-density optical systems
• Define and optimise epitaxial layer structures including quantum wells, DBRs, oxidation layers, and current confinement schemes
• Work with external epitaxy suppliers and foundries to specify, review, and iterate wafer growth runs
• Drive device simulation across optical, electrical, and thermal domains
• Characterise fabricated devices including LIV, spectral behaviour, modulation bandwidth, efficiency, thermal rollover, and reliability
• Develop strategies for current confinement, high-speed modulation, and array uniformity
• Collaborate with electronics teams on driver integration and impedance considerations
• Interface with packaging and optics teams to ensure coupling efficiency, mechanical tolerance robustness, and thermal performance
• Establish reliability methodologies including accelerated life testing and failure analysis
• Support transfer from R&D to pilot and volume manufacturing

Requirements

• 7+ years of experience in semiconductor laser development, with strong emphasis on VCSELs
• Degree in Physics, Electrical Engineering, Materials Science, or related discipline
• Deep understanding of III-V materials systems such as GaAs/AlGaAs or InP-based structures
• Understanding of epitaxial techniques such as MBE or MOCVD
• Deep familiarity with high-speed modulation and bandwidth limitations
• Understanding of thermal management in dense laser arrays
• Experience working with external foundries or epitaxy houses
• Ability to interpret SEM, AFM, and other device-level characterisation data

Preferred Qualifications

• Experience with large VCSEL arrays
• Knowledge of reliability standards for datacom applications
• Experience integrating lasers with custom driver ASICs
• Background in yield optimisation and statistical process control
• Python skills

Benefits

• Meaningful stock options
• Annual Living-Local Bonus for residents within 20 minutes of the office
• Employer-contributed retirement plans