About MixxTech

MixxTech is developing next-generation optical interconnect solutions to meet the growing demands of AI infrastructure and high-performance computing. Our work focuses on advancing optical technologies that enable faster, more efficient, and scalable data transmission.

We are looking for talented engineers who thrive in a quick-paced, collaborative environment and want to help bring innovative optical technologies from design and development into production.

About the Role

We are seeking an experienced Senior Optical Engineer to lead the optical design, simulation, and micro-optical alignment architecture for our next-generation optical interconnect products.

In this role, you will own the end-to-end optical design of expanded-beam fiber connector interfaces and their low-loss optical coupling to Photonic Integrated Circuits (PICs) through discrete or integrated lens systems.

You will combine advanced optical modeling and simulation with hands-on engineering expertise in mechanical tolerance analysis, micro-assembly tooling, and high-precision active and passive alignment methodologies.

This is a highly technical, hands-on role that requires someone who can bridge optical simulation, experimental validation, and product development to help drive designs toward manufacturing readiness.

Key Responsibilities

- Lead the optical design and development of expanded-beam fiber connector interfaces and optical coupling systems for PIC integration.
- Develop and optimize optical architectures using Zemax OpticStudio, including sequential and non-sequential modeling.
- Perform wave-optics and ray-optics simulations to evaluate optical performance, coupling efficiency, alignment sensitivity, and system tolerances.
- Design and evaluate discrete and integrated micro-lens systems for low-loss optical coupling.
- Establish mechanical tolerance budgets and alignment requirements to support reliable optical performance.
- Define micro-assembly processes, tooling requirements, and precision alignment strategies.




- Develop and implement active and passive alignment methodologies, with a focus on sub-micron positioning accuracy.
- Correlate simulation results with experimental and test data to validate optical designs and identify performance gaps.
- Work cross-functionally with engineering, manufacturing, and product development teams to resolve technical challenges and transition designs toward production.
- Use simulation and test results to develop technical hypotheses, recommend design improvements, and drive engineering decisions.

Required Qualifications & Technical Experience
- Bachelor's degree in Optical Engineering, Applied Physics, Electrical Engineering (Photonics), or a related technical discipline.
- 7+ years of relevant experience in optical engineering, optical system design, or photonics development.
- Deep proficiency in Zemax OpticStudio, including:
- Sequential and Non-Sequential modeling.
- Physical Optics Propagation (POP).
- ZPL scripting for tolerance analysis and automation.
- Foundational understanding of STOP (Structural-Thermal-Optical Performance) analysis.

- Demonstrated experience with expanded-beam optical technologies, including collimated-beam connectors, expanded-core fibers, or micro-lens arrays.
- Strong understanding of micro-assembly processes, mechanical tolerance budgeting, and sub-micron optical alignment.
- Experience developing active and passive optical alignment methodologies.
- Ability to correlate optical simulation results with experimental data and translate findings into actionable design improvements.
- Strong analytical and problem-solving skills, with the ability to independently investigate complex optical engineering challenges.

Preferred Qualifications

- Experience coupling light into or out of Photonic Integrated Circuits (PICs).
- Familiarity with PIC coupling technologies, including edge couplers, spot-size converters, and surface grating couplers.
- Experience taking optical designs from initial simulation and prototyping through validation and manufacturing readiness.
- Experience working in high-precision optical assembly, semiconductor, photonics, or optical interconnect environments.

📌 Senior Optical Engineer (Karnataka)
🏢 Mixx Technologies
📍 Karnataka