$190K - $225K
Principal Mechanical Engineer, Liquid Cooling Systems
Northern Virginia·hybrid
Listings written at the constraint level.
- ▪Data centers, robotics, energy, semiconductors, aerospace and defense, applied AI.
- ▪Base salary on every listing. No exceptions.
- ▪Firm described by what they build, not a logo.
Senior engineering is problem-solving until the original assumptions break — a thermal model that diverges once real load hits the floor, a vendor component that constrains every topology downstream, a site that was commissioned on paper but not in reality.
The work that separates you from every other candidate happened after the plan failed, under conditions no spec anticipated.
Standard hiring can't see it. These listings are written for it.
Open roles
$190K - $225KIndustrial
Principal Mechanical Engineer, Liquid Cooling Systems
Global colocation provider operating data centers across major markets worldwide, supporting enterprise and hyperscale customers through the transition to high-density GPU workloads.
Northern Virginia·hybrid·full-time
Data Centers & Critical InfrastructureData Center Mechanical & Cooling
$270K - $310KPre-IPO Startup
Principal Autonomous Vehicle Engineer, Perception
An autonomous trucking company running revenue freight on major highway corridors.
San Francisco Bay Area·hybrid·full-time
Robotics & Autonomous SystemsAutonomous Vehicles & Platforms
$165K - $195KIndustrial
Principal Grid Protection Engineer
Large investor-owned utility serving millions of customers across several states, navigating the transition from synchronous generation to a grid dominated by inverter-based resources.
Houston·hybrid·full-time
Energy & ElectrificationGrid Modernization & Smart Grid
$190K - $230KLarge Operator
Principal Digital Twin Engineer, Manufacturing
Semiconductor manufacturer with major US fabrication operations, investing heavily in digital transformation of process engineering.
Austin·on-site·full-time
Applied AI for Physical SystemsDigital Twin Engineering
$200K - $235KIndustrial
Principal FPGA Architect, High-Speed Data Processing
A communications equipment manufacturer building high-throughput signal processing systems on large-scale FPGA platforms.
Boston·hybrid·full-time
Semiconductor & Hardware EngineeringFPGA Architecture
$220K - $265KSeries C Startup
Principal Satellite Systems Engineer, LEO Constellation
Satellite communications company deploying a LEO broadband constellation. The constellation is in early deployment with an operational phase underway.
Seattle·on-site·full-time
Aerospace & DefenseSatellite & Constellation Systems
By discipline
Data Centers & Critical Infrastructure
Data Center Electrical, Data Center Mechanical & Cooling, Data Center Construction & Commissioning, Mission-Critical Facilities, Critical Facilities Engineering
Robotics & Autonomous Systems
Industrial Robotics & Automation, Autonomous Vehicles & Platforms, Computer Vision & Perception, Controls & Motion Planning, Drone Systems
Energy & Electrification
EV & Battery Systems, Grid Modernization & Smart Grid, Renewable Integration, Power Electronics, Energy Storage
Applied AI for Physical Systems
ML for Physical Systems, Predictive Maintenance & Reliability, Digital Twin Engineering, Edge AI & Inference, Simulation & Computational Engineering
Semiconductor & Hardware Engineering
ASIC & Chip Design, FPGA Architecture, Fab Process Engineering, Packaging & Test, PCB & Board Design
Aerospace & Defense
Launch Vehicle Engineering, Satellite & Constellation Systems, Spacecraft Power & Propulsion, Ground Systems & Operations, Space Electronics & Rad-Hard Design, Autonomous Defense Platforms, Electronic Warfare & Signals, Secure Embedded Systems, Directed Energy & Hypersonics, C4ISR & Secure Communications
Six disciplines. Salary on every listing. Written at the constraint level.