PhysicsX · 1 day ago
Principal Simulation Engineer
Manhattan, NY
Full-time
Hybrid
Senior Level, Lead/Staff
$200K/yr - $300K/yr
5+ years expPhysicsX is a deep-tech company focused on accelerating hardware innovation through AI-driven simulation software for engineering and manufacturing. The Principal Simulation Engineer will lead complex multi-physics simulation projects, work closely with customers to solve engineering challenges, and mentor junior colleagues while driving innovation in the field.
AI InfrastructureArtificial Intelligence (AI)Information TechnologyMachine LearningSemiconductorSimulationSoftware
Responsibilities
Leading the technical direction and delivery of complex multi-physics simulation workstreams, remaining hands-on for the most challenging aspects while guiding teams through execution
Partner with customers to address their most complex engineering challenges through advanced CAE & AI solutions; present results clearly, recommend actionable next steps, and balance accuracy with efficiency under tight deadlines
Independently building and/or guiding others to develop complex multi-physics models from geometry clean-up and meshing, to simulating and post-processing complex real-world phenomena, integrating experimental data for model validation
Building robust parametric CAD models (NX or CATIA) coupled with simulation pipeline automation, for executing advanced design optimization and DoE studies
Working at the intersection of CAE and Data Science to generate high-quality simulation datasets for training Machine/Deep Learning models. Leveraging data sampling techniques to efficiently capture the design space, reduce computational cost, and enhance model accuracy
Accelerate high-fidelity modelling by using Flux (our cloud platform) and on-premise HPC resources, going beyond smart meshing and model setup to achieve real performance gains
Continuously improving engineering best practices, adapting CFD model setups and outputs to support the development of Deep Learning surrogates
Combining project leadership with a strong commitment to mentoring junior colleagues, contributing to a culture of collaboration, growth, and shared success
Traveling globally (North America, Europe, Asia, Oceania) up to 2–3 weeks per quarter to work side-by-side with customers in building solutions on-site
Qualification
Required
Deep expertise in fluid mechanics, heat transfer, and multiphase modelling
Solid ability to apply fundamental knowledge to real-world phenomena across a wide range of engineering applications
Highly proficient in at least one of Star-CCM+, OpenFOAM, or Fluent
Adept at automating these tools to create scalable optimisation workflows
Experience in parametric CAD modelling (NX or CATIA)
Coding experience in Python/Java, or the ability to quickly learn programming languages
5+ years of industry experience (post Masters or PhD) in a commercial, non-research environment
Confidence in setting up CFD simulations independently
Ability to interpret complex results with depth
Ability to make informed decisions based on solid engineering judgement
Experience in leading the technical direction and delivery of complex multi-physics simulation workstreams
Ability to partner with customers to address complex engineering challenges through advanced CAE & AI solutions
Experience in building and/or guiding others to develop complex multi-physics models
Experience in building robust parametric CAD models coupled with simulation pipeline automation
Experience in working at the intersection of CAE and Data Science to generate high-quality simulation datasets
Ability to leverage data sampling techniques to efficiently capture the design space
Experience in continuously improving engineering best practices
Commitment to mentoring junior colleagues
Willingness to travel globally (North America, Europe, Asia, Oceania) up to 2–3 weeks per quarter
Benefits
Equity options – share in our success and growth.
5% 401(k) match – invest in your future.
Flexible working – balance your work and life in a way that works for you.
Hybrid setup – enjoy our Manhattan office while keeping remote flexibility.
Enhanced parental leave – support for life’s biggest milestones.
Private healthcare – comprehensive coverage for you and your family.
Personal development – access learning and training to help you grow.
Work from anywhere – extend your remote setup to enjoy the sun or reconnect with loved ones.
Company
PhysicsX
PhysicsX offers an AI-native simulation software stack for engineering and manufacturing across advanced industries.
51-200 employees
H1B Sponsorship
PhysicsX has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2024 (1)
Funding
Current Stage
Growth StageTotal Funding
$187MKey Investors
NVenturesAtomicoGeneral Catalyst
2025-11-19Series B· $20M
2025-06-22Series B· $135M
2023-11-27Series A· $32M
Leadership Team
Jacomo Corbo
CEO & Co-Founder
Recent News
Tech Funding News
2025-11-08
Company data provided by crunchbase