---
title: 'MMIC Design Engineer at Lumilens'
canonical: 'https://feeny.ai/job/mmic-design-engineer-lumilens-san-jose-cz8aa3qzp177'
type: 'job'
last_seen: '2026-11-02'
---

# MMIC Design Engineer at Lumilens

- **Company:** Lumilens
- **Location:** San Jose, CA
- **Employment:** full-time
- **Posted:** 2026-10-26
- **Last confirmed live:** 2026-11-02
- **Apply:** https://jobs.ashbyhq.com/lumilens/42063c87-56db-4f3b-92f3-2233145537fb

## Job description

MMIC Design Engineer

## ABOUT LUMILENS

At Lumilens we are building the critical photonics infrastructure that powers tomorrow’s AI supercomputing. From chip-to-chip optical interconnects to scalable photonic engines, Lumilens is unlocking a new era of computing faster, cooler, and massively more efficient.

We’re a well-funded startup backed by Mayfield and led by industry’s veterans who’ve built and scaled some of the most transformative technologies in the industry. This isn’t incremental innovation, it’s a ground-floor opportunity to rethink the optical layer from the silicon up. You’ll work alongside a team of world-class engineers solving some of the hardest challenges in optics, systems, and scale. Every line of code, every design decision, every breakthrough you help deliver will shape the infrastructure of tomorrow.

If you're looking for mission, momentum, and the chance to make an outsized impact jump on the rocket ship. We’re just getting started.

## POSITION OVERVIEW

We are seeking an experienced MMIC Design Engineer to design and develop high-speed analog and monolithic microwave integrated circuits that power Lumilens’ next-generation photonic interconnects. This role will own circuit design from concept through tape out and silicon validation, covering DC-to-tens-of-GHz performance, EM modelling, parasitic extraction, and signoff on advanced process nodes. You will partner closely with photonics, layout, CAD, and test teams to deliver robust, high-performance silicon across multiple programs.

What You'll Do:

- Design and develop high-speed analog and MMIC circuits, including amplifiers, drivers, TIAs, and related building blocks operating from DC to tens of GHz.
- Own the full design cycle from architecture and schematic design through simulation, layout guidance, tape out, and silicon validation.
- Perform EM modelling and simulation of passives, interconnects, and critical structures using Cadence EMX and related tools.
- Run parasitic extraction, EM/IR, and reliability analysis using Quantus QRC and Voltus-XFi to ensure design robustness and signoff readiness.
- Simulate and verify designs using Spectre and Synopsys HSPICE/PrimeSim across process, voltage, and temperature corners.
- Partner with layout engineers to optimize floorplans and minimize parasitic and EM effects, and complete physical verification with Calibre.
- Develop automation and scripts in Cadence SKILL, Perl, and Unix shell to streamline design, simulation, and verification workflows.
- Collaborate with photonics, systems, and test teams to define specifications, support lab characterization, and correlate measurements to simulation.

What You'll Bring:

- MS or PhD in Electrical Engineering or a related field.
- 5+ years (MS) or 3+ years (PhD) of analog IC design experience, with high-speed or advanced process node experience. 10+ years of EDA experience for senior roles.
- Proficiency in Cadence EMX, Virtuoso Studio, Spectre, Quantus QRC, Voltus-XFi/EMIR, Calibre, and Synopsys HSPICE/PrimeSim.
- Strong understanding of DC-to-tens-of-GHz analog design, device physics, parasitics, EM effects, and high-frequency analysis.
- Skill in Cadence SKILL, Perl, and Unix shell scripting for automation.
- Excellent communication, teamwork, problem-solving, and multitasking abilities.

Nice-to-Haves:

- Experience designing circuits for optical interconnects, such as laser and modulator drivers or TIAs.
- Tapeout experience in advanced CMOS, SiGe BiCMOS, or similar high-frequency process technologies.
- Hands-on lab experience with high-frequency measurement equipment such as VNAs, sampling oscilloscopes, and BERTs.
- Familiarity with high-speed package and board co-design, including signal integrity and transmission line modelling.
- Experience working with engineering teams across multiple international locations.

Why Join Us? ● Competitive salary commensurate with experience ● Comprehensive benefits package including health insurance ● Professional development opportunities and certification support ● Access to cutting-edge technology and cloud platforms ● Collaborative work environment with cross-functional teams ● Lumilens is an equal opportunity employer. All qualified applicants will receive consideration without regard to race, color, religion, gender, identity, orientation, veteran status, disability, or any other legally protected status.

## About Lumilens

## Company Overview
- **One-liner**: Lumilens designs and manufactures next-generation photonic interconnects to massively scale AI compute infrastructure.
- **Entity Type**: Private (Series B – led by Accton Technology; prior Series A of $30M from Mayfield and Spark Capital)
- **Headquarters**: San Jose, California, USA
- **Founded**: 2024
- **Founders**: Ankur Singla (CEO), Samuel Liu (VP Products), Ritesh Kapahi (VP/GM India), Dave Friedman (VP Operations)

## Core Business
- **Primary industry**: Photonics / optical interconnects for AI data centers
- **Target customers**: Large-scale AI providers and hyperscale data center operators (B2B, Enterprise)
- **Mission**: “To rapidly innovate in photonics and connectivity architectures to enable the massive scaling of compute infrastructure required to deliver the full potential of AI.”

## Products & Services
- **Photonic Interconnects (Scale-Out & Scale-Up)**: High-density, low-latency optical links that enable cluster-to-cluster and direct GPU-to-GPU connectivity. Supports 100x higher quantity of GPU direct connections than legacy approaches.
  - *Type*: Hardware (silicon photonics modules) + integrated manufacturing
- **Automated Manufacturing Platform**: End-to-end custom robotics and AI-optimized production processes to maximize yield, quality, and supply-chain flexibility.
  - *Type*: Service / Manufacturing capability (in-house)

## Market Standing
- **Valuation/Market Cap**: Not publicly available
- **Key Metric**: Total funding – $30M Series A (June 2024); Series B led by Accton Technology (amount undisclosed)
- **Notable Investors/Partners**: Mayfield, Spark Capital, Accton Technology
- **Growth Signals**:
  - Headcount grew 287% YoY (54 employees as of mid-2025) [linkedin.com]
  - Operations in 8 countries: USA, India, Thailand, Poland, Singapore, Czechia, South Korea, Malaysia
  - 48 active job postings (+23.1% monthly growth) [linkedin.com]
  - Leadership team with deep photonics/networking experience from Cisco, Juniper, Meta, Lumentum, Coherent

## Competitive Advantages
- **In-house silicon photonics development** – full control over design and supply chain
- **Systems-level expertise** – can partner on both scale-out and scale-up architectures
- **Manufacturing automation** – robotics + AI processes enable faster innovation, higher quality, and predictable deployment
- **Standards-based interconnects** – easy deployment into existing infrastructure
- **Manufacturing anywhere** – supply-chain continuity and scalable manufacturing

## Strategic Focus
- Enable massive scaling of AI infrastructure by overcoming electrical/copper limitations with advanced photonics
- Disaggregate GPUs to mitigate power and density challenges in data centers
- Expand manufacturing capacity globally and continue to automate production
- Align product roadmap with industry standards to accelerate adoption

## Why Work Here
- **Culture**: Fast-paced startup environment with deep technical expertise; mission-driven focus on enabling the future of AI
- **Work policy**: In-office (HQ San Jose, CA with Bengaluru, India as major hub) [builtin.com]
- **Perks**: Opportunity to work on cutting-edge photonics, robotics, and AI manufacturing; direct impact on world’s largest AI infrastructure
- **Engineering culture**: Heavy emphasis on silicon photonics, hardware design, robotics automation, and system-level architecture. Teams are led by veterans from Cisco, Juniper, Meta, Lumentum, Coherent.

## Sources
1. [lumilens.com](https://lumilens.com/) – Company overview, mission, leadership, products
2. [lumilens.com/company](https://lumilens.com/company) – Vision, investors, leadership team
3. [builtin.com](https://builtin.com/company/lumilens) – Career page, employee count, year founded, office policy
4. [linkedin.com](https://www.linkedin.com/company/lumilens) – Headcount, funding details, geographic/department breakdown, job trends, talent sources
5. [jobs.ashbyhq.com](https://jobs.ashbyhq.com/lumilens) – Current job openings (48 listings)

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