Job Description

Job Title: Thermophotonic (TP) Device Engineer
Location: Bangalore, India
Job Type: Full-Time | On-site
Experience: 3 10 years
Role Overview
We are looking for a highly skilled Thermophotonic (TP) Device Engineer to work on design, fabrication, and optimization of high-efficiency PV and thermophotonic energy conversion devices. This role involves full-stack semiconductor device development, including epitaxial growth, wafer processing, characterization, packaging, and thermal-photonic performance modeling. Experience with III V semiconductor materials and device physics is strongly preferred.
Key Responsibilities
Device Engineering & Fabrication

• Design and develop high-efficiency photovoltaic and thermophotonic devices, including multijunction III-V structures, GaSb/InGaAs cells, spectral-selective energy converters, and photonic energy amplifiers.
• Perform epitaxial growth using MOCVD / MBE, including reactor operation, precursor selection, growth recipe optimization, and in-situ monitoring systems (RHEED, pyrometry, interferometry).
• Lead semiconductor wafer-level processing:
• Photolithography
• Wet & dry etching (RIE, ICP)
• Metallization and ohmic contact engineering
• Surface passivation and anti-reflection coatings
• Thin-film and dielectric deposition (ALD, PECVD, sputtering, evaporation)
• Develop optical and photonic structures including selective emitters, photonic crystals, interference filters and dielectric mirrors for spectral control.
• Oversee device packaging, thermal interface engineering, and interconnect architecture for high-temperature operation.

Characterization, Testing & Simulation

• Conduct optical, electrical and material characterization:
• IV, CV, EQE/IQE, electroluminescence, photoluminescence
• Hall mobility, carrier lifetime, AFM, SEM, TEM, XRD
• Thermal cycling and failure/degradation analysis
• Utilize advanced simulation tools:
• TCAD Sentaurus, Silvaco, Lumerical, COMSOL, LightTools
• MATLAB/Python for analytical modeling
• Analyze thermal-radiative coupling, photon recycling, near-field/ far-field optical modeling.

System Integration

• Collaborate with system engineering teams to integrate devices with thermal emitters, optical coupling assemblies, power electronics, and energy storage interfaces.
• Support cooling, heat extraction & thermal management for high-temperature applications.
• Evaluate scaling readiness, fabrication partnerships and production.

Required Skills & Qualifications

• Bachelor's/Master's/PhD in Semiconductor Physics, Materials Science, Electrical Engineering, Nanotechnology, Photonics, or related field.
• 3 10 years of experience in semiconductor device fabrication & measurement.
• Strong hands-on experience with MOCVD, MBE, thin-film deposition, lithography, and clean-room processes.
• Expertise working with II-VI or III-V compounds (GaSb, InGaAs, GaAs, InP, AlGaAs, Ge, GaN, SiC preferable).
• Strong understanding of photonic structures, optical coatings, and energy conversion physics.
• Proficiency in scientific data analysis and semiconductor simulation.

Preferred Experience

• Experience with thermophotonic / radiative recombination-based energy amplification devices.
• Experience in spectral matching, optical cavity engineering, and photon recycling.
• Knowledge of heat transfer, thermal imaging, infrared spectroscopy, radiative emissivity modeling.
• Prior work scaling semiconductor devices to production scale.

What We Offer

• Opportunity to build next-generation thermophotonic energy systems with global climate impact.
• Work with leading scientists, research institutions, and high-performance engineering teams.
• Competitive salary + ESOPs + growth-based incentives.

Skills Required