Fluidstack
About Fluidstack
Fluidstack is the AI Cloud Platform. We build GPU supercomputers for top AI labs, governments, and enterprises. Our customers include Mistral, Poolside, Black Forest Labs, Meta, and more. Our team is highly motivated, and focused on providing a world class supercomputing experience. We put our customers first in everything we do, working hard to not just win the sale, but to win repeated business and customer referrals. We hold ourselves and each other to high standards. We expect you to care deeply about the work you do, the products you build, and the experience our customers have in every interaction with us. You must work hard, take ownership from inception to delivery, and approach every problem with an open mind and a positive attitude. We value effectiveness, competence, and a growth mindset. About the Role
The DC Infrastructure Architect (Optical) is responsible for translating logical network topologies into a scalable, resilient, and cost-optimized optical and structured cabling design for hyper-scale data centers. This role owns the end-to-end physical implementation of the data center network (DCN), including fiber plant architecture, transceiver planning, and integration with structured cabling ecosystems. Focus
Logical / Physical Mapping Break down DCN logical port maps (TOR, spine, super-spine, DCI) into physical cross-connect and patching schedules.
Automate port-to-fiber mapping at scale (100K+ ports per site).
Fiber Plant Design Define cassette types (MTP/MPO Base-8/12/16), trunk counts, and structured cabling hierarchy.
Plan cassette placement within racks, rows, and meet-me-rooms.
Model fiber utilization and overbuild for 23 hardware generations.
Optics / Transceiver Planning Select optics (400G/800G DR4, FR4, LR4, SR8, coherent DCI) based on reach and loss budget.
Validate interoperability across vendors and generations.
Maintain loss budget and margin models for every link type.
Structured Cabling & Physical Implementation Define patching architectures (direct MPO vs. breakout vs. mid-span).
Ensure pathways (ladder racks, underfloor, ODFs) scale with fiber density.
Establish standards for labeling, documentation, and change management.
Scalability & Lifecycle Management Build modular designs for pod/rack growth.
Anticipate transition to higher-speed optics (e.g., 400G ? 800G ? 1.6T).
Integrate with DCIM (NetBox, custom tools) to track strands, ports, and patching.
About You
Proven experience designing hyperscale or cloud provider data center networks (1000+ racks, 100K+ fiber strands).
Expert in structured cabling systems (Corning, Panduit, CommScope) and MPO/MTP ecosystems.
Deep knowledge of optical standards (IEEE 802.3, OIF) and transceiver technologies (400G/800G DR4, FR4, LR4, SR8).
Strong grasp of fiber loss budgets, dispersion, and testing methodologies (OTDR, insertion loss, polarity verification).
Experience integrating designs into DCIM tools (NetBox, Remedy, custom hyperscaler equivalents).
Benefits
Competitive total compensation package (cash + equity).
Retirement or pension plan, in line with local norms.
Health, dental, and vision insurance.
Generous PTO policy, in line with local norms.
Fluidstack is an Equal Employment Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability and protected veterans status, or any other characteristic protected by law. Fluidstack will consider for employment qualified applicants with arrest and conviction records pursuant to applicable law. #J-18808-Ljbffr
Fluidstack is the AI Cloud Platform. We build GPU supercomputers for top AI labs, governments, and enterprises. Our customers include Mistral, Poolside, Black Forest Labs, Meta, and more. Our team is highly motivated, and focused on providing a world class supercomputing experience. We put our customers first in everything we do, working hard to not just win the sale, but to win repeated business and customer referrals. We hold ourselves and each other to high standards. We expect you to care deeply about the work you do, the products you build, and the experience our customers have in every interaction with us. You must work hard, take ownership from inception to delivery, and approach every problem with an open mind and a positive attitude. We value effectiveness, competence, and a growth mindset. About the Role
The DC Infrastructure Architect (Optical) is responsible for translating logical network topologies into a scalable, resilient, and cost-optimized optical and structured cabling design for hyper-scale data centers. This role owns the end-to-end physical implementation of the data center network (DCN), including fiber plant architecture, transceiver planning, and integration with structured cabling ecosystems. Focus
Logical / Physical Mapping Break down DCN logical port maps (TOR, spine, super-spine, DCI) into physical cross-connect and patching schedules.
Automate port-to-fiber mapping at scale (100K+ ports per site).
Fiber Plant Design Define cassette types (MTP/MPO Base-8/12/16), trunk counts, and structured cabling hierarchy.
Plan cassette placement within racks, rows, and meet-me-rooms.
Model fiber utilization and overbuild for 23 hardware generations.
Optics / Transceiver Planning Select optics (400G/800G DR4, FR4, LR4, SR8, coherent DCI) based on reach and loss budget.
Validate interoperability across vendors and generations.
Maintain loss budget and margin models for every link type.
Structured Cabling & Physical Implementation Define patching architectures (direct MPO vs. breakout vs. mid-span).
Ensure pathways (ladder racks, underfloor, ODFs) scale with fiber density.
Establish standards for labeling, documentation, and change management.
Scalability & Lifecycle Management Build modular designs for pod/rack growth.
Anticipate transition to higher-speed optics (e.g., 400G ? 800G ? 1.6T).
Integrate with DCIM (NetBox, custom tools) to track strands, ports, and patching.
About You
Proven experience designing hyperscale or cloud provider data center networks (1000+ racks, 100K+ fiber strands).
Expert in structured cabling systems (Corning, Panduit, CommScope) and MPO/MTP ecosystems.
Deep knowledge of optical standards (IEEE 802.3, OIF) and transceiver technologies (400G/800G DR4, FR4, LR4, SR8).
Strong grasp of fiber loss budgets, dispersion, and testing methodologies (OTDR, insertion loss, polarity verification).
Experience integrating designs into DCIM tools (NetBox, Remedy, custom hyperscaler equivalents).
Benefits
Competitive total compensation package (cash + equity).
Retirement or pension plan, in line with local norms.
Health, dental, and vision insurance.
Generous PTO policy, in line with local norms.
Fluidstack is an Equal Employment Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability and protected veterans status, or any other characteristic protected by law. Fluidstack will consider for employment qualified applicants with arrest and conviction records pursuant to applicable law. #J-18808-Ljbffr