---
title: 'Senior/Principal Analog & Mixed Signal Design Engineers at Lumilens'
canonical: 'https://feeny.ai/job/senior-principal-analog-mixed-signal-design-engineers-lumilens-san-jose-xrajgm4x4gk1'
type: 'job'
last_seen: '2026-09-14'
---

# Senior/Principal Analog & Mixed Signal Design Engineers at Lumilens

- **Company:** Lumilens
- **Location:** San Jose, CA
- **Employment:** full-time
- **Work type:** hybrid
- **Posted:** 2025-12-29
- **Last confirmed live:** 2026-09-14
- **Apply:** https://jobs.ashbyhq.com/lumilens/ce50fb83-9d2a-4a4d-8e3c-04ac9c463aa8

## Job description

## About Lumilens

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 veterans who’ve built and scaled some of the most transformative technologies in the industry. This isn’t incremental innovation'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 Analog / Mixed-Signal IC Design Engineer to design and deliver high-performance Driver and TIA circuits in BiCMOS and advanced semiconductor nodes. This role involves end-to-end ownership of analog building blocks, from architectural definition through silicon validation, in a fast-moving and technically rigorous environment. You will collaborate closely with digital, layout, and validation teams to deliver scalable, manufacturable analog IP.

## Key Responsibilities

- Architect and design high-speed analog and mixed-signal circuits, including:
- Transmit drivers (linear and/or PAM-based)
- Transimpedance amplifiers (TIAs) and receiver front-ends
- Clocking and timing circuits (PLLs, DLLs, low-jitter references)
- Biasing networks, bandgaps, and on-chip power regulation
- Perform transistor-level design, simulation, and optimization across PVT corners.
- Analyze and optimize bandwidth, noise, linearity, jitter, stability, and power.
- Work closely with layout engineers on floorplanning, matching, isolation, and parasitic management.
- Define and support silicon bring-up, characterization, and debug, including correlation to simulations.
- Contribute to design methodology, IP reuse, and best practices across programs.

Required Qualifications:

- MS or PhD in Electrical Engineering or related field.
- 7+ years of hands-on analog or mixed-signal IC design experience.
- Strong fundamentals in:
- Feedback and stability analysis
- Noise and jitter modeling
- High-speed analog circuit design
- Power integrity and substrate isolation
- Experience taking Driver, TIA, or related analog blocks through tape-out and lab validation.
- Proficiency with industry-standard analog design and simulation tools.

Preferred Qualifications:

- BiCMOS (SiGe) and/or advanced CMOS nodes.
- High-speed data-path or I/O-adjacent analog circuits.
- Experience with process scaling and technology trade-offs.
- Exposure to silicon debug, failure analysis, and yield learning.

## Why Join

- Deep technical ownership with visible impact.
- Opportunity to work in advanced semiconductor technologies.
- Small, focused teams with high engineering standards.

Benefits:

- Competitive salary and significant equity compensation in a rapidly growing, well-funded startup.
- Comprehensive health, dental, and vision insurance.
- Flexible time off policy.
- Direct impact on groundbreaking technology shaping the future of AI and data centers.
- Opportunity to work with a highly experienced and collaborative team.
- Dynamic and innovative work environment
- Opportunity for rapid career growth

*All qualified applicants will receive consideration for employment without regard to race, color, religion, religious creed, sex, national origin, ancestry, age, physical or mental disability, medical condition, genetic information, military and veteran status, marital status, pregnancy, gender, gender expression, gender identity, sexual orientation, or any other characteristic protected by local law, regulation, or ordinance.

## 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)

## Other roles at Lumilens

- [Senior/Staff Process Engineer (Flip Chip)](https://feeny.ai/job/senior-staff-process-engineer-flip-chip-lumilens-singapore-64nme1rs25n7) — Singapore
- [Senior/Staff Process Engineer (Wafer Dicing & Back-grind)](https://feeny.ai/job/senior-staff-process-engineer-wafer-dicing-back-grind-lumilens-singapore-x7ndepxkpsq1) — Singapore
- [Process Technician](https://feeny.ai/job/process-technician-lumilens-chon-buri-09kznv0jezc2) — Chon Buri, Thailand
- [Active Alignment & NPI Process Development Engineer](https://feeny.ai/job/active-alignment-npi-process-development-engineer-lumilens-singapore-32wpsa2ww70y) — Singapore
- [Staff Engineer (Foundry Operations)](https://feeny.ai/job/staff-engineer-foundry-operations-lumilens-singapore-2b6mww54qfxg) — Singapore
- [Capital Equipment Sourcing & Procurement Director](https://feeny.ai/job/capital-equipment-sourcing-procurement-director-lumilens-singapore-wvczymcygsw4) — Singapore
- [Staff Wafer-Level Testing Equipment Engineer](https://feeny.ai/job/staff-wafer-level-testing-equipment-engineer-lumilens-singapore-2p0ya27rda60) — Singapore
- [Sourcing Manager (Foundry & OSAT)](https://feeny.ai/job/sourcing-manager-foundry-osat-lumilens-singapore-26re9q580khj) — Singapore
- [Senior/ Staff NPI Wafer Bumping/Fan-Out Process Engineer](https://feeny.ai/job/senior-staff-npi-wafer-bumping-fan-out-process-engineer-lumilens-singapore-ma0tx35az5eq) — Singapore
- [Staff Wafer-level Testing Engineer (Operations & Process)](https://feeny.ai/job/staff-wafer-level-testing-engineer-operations-process-lumilens-singapore-cvp2fdz9w4qr) — Singapore