Lumilens
lumilens.com
Actively hiring
Servers & Data Center Hardware
Optical Communications
Optics & Photonic Components
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How Lumilens hires
Truth index
A 89/100
Median time to fill
118 days
Ghost roles
9%
Stale roles
0%
Reposted roles
0%
Lumilens scores A on the Alion truth index (A is best, E worst), measured over 149 open roles re-checked against its own hiring board: 9% look like ghost listings, 0% have gone stale and 0% are the same role posted again. Its roles close in a median of 118 days. It measures how much of what this employer publishes turns into a real, finite search - not the employer as a workplace. How the index is computed
Overview
Lumilens is a photonics startup that designs and manufactures optical interconnects and transceivers that link servers in large AI data center GPU clusters, headquartered in San Jose, California. Led by chief executive and co-founder Ankur Singla with a team drawn from Cisco, Juniper, Meta, Lumentum and Coherent, it launched publicly in 2026 backed by Mayfield, reporting more than 900 million dollars in funding and a 5.5 billion dollar valuation. Its openings are mostly for optical design, test and manufacturing engineers, signal and power integrity engineers, quality and failure analysis engineers and manufacturing site supervisors, including roles in Thailand.
News
Lumilens Emerges From Stealth With Over $900 Million Raised At $5.51 Billion Valuation
Lumilens has emerged from stealth with more than $900 million in total funding as it develops optical connectivity systems for large-scale AI data centers. The company announced more than $700 million in new financing co-led by Atreides Management, Bain C
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Report
Optical networking startup Lumilens launches with $900M in funding
Optical networking startup Lumilens launches with $900M in funding - SiliconANGLE
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Report
Lumilens leaves stealth at $5.5bn to fix AI's wiring problem
Lumilens raised $700m+ at a $5.51bn valuation for optical interconnects that replace data-centre copper with light, as AI's bottleneck shifts.
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Report
Lumilens Emerges from Stealth with More Than $900 Million in Funding to Break AI's Connectivity Bottlenecks in the Data Center
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Report
Tech stack
Technologies named in job postings at Lumilens over the last 12 months, by layer, with the share of postings for each.
Technologies in use
116
Postings analysed
102
Stack modernity
68/100AI adopter
Languages
Python35%
Visual Basic9%
C#7%
C++7%
Frameworks & libraries
UVM4%
Matplotlib1%
NumPy1%
Pytest1%
Databases
Chroma2%
Cloud & platforms
Windows6%
Bitbucket5%
GitHub5%
Linux5%
AI & ML
BERT4%
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Full Lumilens tech stack
116 technologies · by team · pay by technology · changes · similar stacks
Growth
Hiring Momentum
43/100
Stable
Open positions
149
4 opened / 1 closed in 30 days
Median time-to-fill
119 days
faster than 10% of the market
ATS activity
Every ~5 hours
Today
Hiring Dynamics
0%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
Industrial Engineering
27% ▼
Hardware
15% ▲
Operations
14%
Semiconductors
13% ▲
Administrative
4% ▲
Field & Service
4% ▼
Actively hiring for Administrative (+3 in 30 days)
Activity Timeline
Added CAPA to stack
Oct 2026
Added Service Desk to stack
Oct 2026
Added OneDrive to stack
Oct 2026
Added ITIL to stack
Oct 2026
Added Freshdesk to stack
Oct 2026
Added Crowdstrike to stack
Oct 2026
New location: Taiwan
Sep 2026
Added Zero Trust to stack
Sep 2026
Added Zabbix to stack
Sep 2026
Added SharePoint to stack
Sep 2026
Added pfSense to stack
Sep 2026
Added OSPF to stack
Sep 2026
Offices
Where the company hires and what each office is for
Cities
6
Hiring now
6
Countries
5
Busiest office
San Jose
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Headquarters
Builds here
Office with open vacancies
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San Jose
United States
HQ
34 open roles 9 posted in 90 days 47% engineering 50-200 est. staff
hires for Hardware, Industrial Engineering, Semiconductors
Singapore
Singapore
Plant / site
83 open roles 52 posted in 90 days 23% engineering 50-200 est. staff
hires for Industrial Engineering, Semiconductors, Operations
1 Bulim Drive
Bengaluru
India
Plant / site
21 open roles 6 posted in 90 days 52% engineering 10-50 est. staff
hires for Hardware, Industrial Engineering, Operations
Chon Buri
Thailand
Plant / site
12 open roles 9 posted in 90 days 17% engineering 10-50 est. staff
hires for Industrial Engineering, Hardware, Finance
Kraków
Poland
Engineering / R&D
2 open roles 100% engineering 1-10 est. staff
hires for Backend, Enterprise Apps
Bangkok
Thailand
2 open roles 1 posted in 90 days 100% engineering 1-10 est. staff
hires for QA, Hardware
Jobs
≈ $157k – $288k per year (Estimated) • In office • Full-Time • 10+ years exp • Master's Degree • San Jose
Perl
Unix
Chips/EDA
Synopsys HSPICE
Siemens Calibre
Cadence Quantus
Synopsys PrimeSim
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≈ $66k – $136k per year (Estimated) • In office • Full-Time • 3+ years exp • Master's Degree • Singapore
Statistical Process Control
JMP
Apply
≈ $57k – $115k per year (Estimated) • In office • Full-Time • 5+ years exp • Bachelor's Degree • Singapore
Python
Statistical Process Control
JMP
MedTech
CAPA
Apply
≈ $55k – $112k per year (Estimated) • In office • Full-Time • 5+ years exp • Bachelor's Degree • Singapore
Apply
≈ $19k – $50k per year (Estimated) • In office • Full-Time • 5+ years exp • Master's Degree • Bengaluru
Cadence Virtuoso
Apply
≈ $46k – $117k per year (Estimated) • In office • Full-Time • 12+ years exp • Bachelor's Degree • Singapore
Python
Visual Basic
Statistical Process Control
Apply
≈ $48k – $98k per year (Estimated) • In office • Full-Time • 8+ years exp • Singapore
Python
PowerShell
Bash
Zabbix
Azure
Grafana
Linux
DNS
DHCP
VPN
Wi-Fi
BGP
OSPF
Cybersecurity
FortiGate
pfSense
Zero Trust
Microsoft Entra ID
Management
SharePoint
Apply
≈ $98k – $236k per year (Estimated) • In office • Full-Time • San Jose
Python
C
C++
Bash
Perl
GNU Make
C++
CMake
DevOps
GitHub Actions
GitLab CI
SLURM
CI/CD
Jenkins
Git
Linux
Unix
Chips/EDA
Cadence Virtuoso
Synopsys Fusion Compiler
Cadence Xcelium
Synopsys IC Compiler II
Siemens Calibre
Cadence Pegasus
Apply
Apply
≈ $40k – $80k per year (Estimated) • In office • Full-Time • 5+ years exp • Bachelor's Degree • Singapore
Design of Experiments
Apply
≈ $30k – $50k per year (Estimated) • In office • Full-Time • Bachelor's Degree • Singapore
Design of Experiments
Apply
≈ $65k – $147k per year (Estimated) • In office • Full-Time • Bachelor's Degree • Singapore
Python
Cadence Virtuoso
KLayout
Synopsys StarRC
Apply