
PhysicsX · New York
ABOUT US PhysicsX is a deep-tech company with roots in numerical physics and Formula One, dedicated to accelerating hardware innovation at the speed of softwar...
PhysicsX is a deep-tech company with roots in numerical physics and Formula One, dedicated to accelerating hardware innovation at
the speed of software.
We are building an AI-driven simulation software stack for engineering and manufacturing across advanced industries. By enabling
high-fidelity, multi-physics simulation through AI inference across the entire engineering lifecycle, PhysicsX unlocks new levels
of optimization and automation in design, manufacturing, and operations — empowering engineers to push the boundaries of
possibility. Our customers include leading innovators in Aerospace & Defense, Materials, Energy, Semiconductors, and Automotive.
NOTE: WE ARE CURRENTLY RECRUITING FOR MULTIPLE POSITIONS, HOWEVER PLEASE ONLY APPLY FOR THE ROLE THAT BEST ALIGNS WITH YOUR
As an Simulation Engineer - FEA, you will build hands-on experience applying finite element analysis to real-world engineering
challenges across multiple industries including aerospace and defense. You are someone who can grasp and apply advanced
engineering concepts across multiple industries, and you excel at working directly with customers (often directly on-site) to
build CAE models that are integrated into AI-tools that are both useful and used.
You bring expertise in structural mechanics, and materials science with a solid ability to apply fundamental knowledge to
real-world phenomena across a wide range of engineering applications. Highly proficient in at least one of NASTRAN, ABAQUS or
ANSYS Mechanical, adept at automating these tools to create scalable optimisation workflows that drive impactful results. Exposure
to open-source FEA tools (CalculiX, FEniCS), or explicit dynamics (LS-DYNA, Abaqus/Explicit) is a plus. Proficiency in parametric
CAD modelling (NX or CATIA) and coding in Python, (or the ability to quickly learn programming languages), is an advantage.
With 1-2 years of industry experience (post Masters or PhD) in a commercial, non-research environment, you’re ready to hit the
ground running. You’re confident setting up FEA simulations independently, interpreting complex results with depth, and making
informed decisions based on solid engineering judgement. Familiarity with turbomachinery analysis, gas turbine, or aircraft
structural sizing is a natural fit for this role. Experience with multidisciplinary optimization (MDO) is a bonus, though not
essential at this level. In addition, background in composite materials analysis alongside some exposure to damage tolerance and
fracture mechanics, would be a strong fit as well.
Note: This position may require access to information protected under U.S. export control laws and regulations, including the
Export Administration Regulations (EAR) and the International Traffic in Arms Regulations (ITAR). Please note that any offer for
employment may be conditioned on authorization to receive software or technology controlled under these U.S. export control laws
and regulations without sponsorship for an export license.
This Role
In this role, you’ll work closely with our Data Scientists, Machine Learning Engineers, and customers to understand and define the
engineering challenges we are solving.
You’ll play a crucial role in delivering high-fidelity simulations by:
post-processing complex real-world phenomena, integrating experimental data for model validation.
executing advanced design optimization and DoE studies.
results clearly
Learning models. Leveraging data sampling techniques to efficiently capture the design space, reduce computational cost, and
enhance model accuracy.
and model setup to achieve real performance gains.
with customers in building solutions on-site.
OUR DELIVERY TEAMS DRIVE INNOVATION TO TURN AI MODELS INTO PRACTICAL SOLUTIONS - READ OUR BLOG TO LEARN MORE ABOUT HOW YOU’LL
Build what actually matters
Help shape an AI-native engineering company at a formative stage, tackling problems that genuinely matter for industry and
society. This is work with real-world impact - and something you can be proud to stand behind.
Learn alongside exceptional people
Work with a high-caliber, collaborative team of engineers, scientists, and operators who care deeply about doing great work, and
about helping each other get better. We come from diverse backgrounds, but we share a commitment to operating at the highest level
and addressing some of the most complex challenges out there. If you’re ambitious, thoughtful, and driven by impact, you’ll feel
at home.
Influence over hierarchy
We operate with a flat structure: good ideas win - wherever they come from. Questioning assumptions and challenging the status quo
isn’t just welcomed, it’s expected.
Sustainable pace, long-term ambition
Building meaningful technology is a marathon, not a sprint. We believe in balancing focused, ambitious work with a life beyond it.
Our hybrid model blends time together in our New York office with work-from-home days, giving you the flexibility to work
sustainably while staying connected in person.
And it doesn’t stop there …
🚀 Equity options - share meaningfully in the company you’re helping to build.
💰 5% contribution to 401(k) - build long-term security with a strong retirement plan.
🍽️ Free team lunch 1x/week - good food, great company, and space to connect.
🏥 Private health insurance – comprehensive cover for you, offering total peace of mind.
👶 Enhanced parental leave – 3 months full pay paternity and 6 months full pay maternity leave, to provide extra flexibility
during the moments that matter most.
☀️ 20 days of Annual Leave (+ Public Holidays) - because taking time to rest matters.
📈 Personal development – dedicated support for learning, development, and leveling up over time.
💪 Gympass / Wellhub (subsidized) – for you and up to 3 family members, supporting both physical and mental wellbeing.
💳 Flexible Spending Account (FSA) – set aside pre-tax dollars for eligible healthcare expenses.
🔎 Watch this space, we’re continuing to build this as we grow…
Salary for this position is from $138,000 to $217,000
We value diversity and are committed to equal employment opportunity regardless of sex, race, religion, ethnicity, nationality,
disability, age, sexual orientation or gender identity. We strongly encourage individuals from groups traditionally
underrepresented in tech to apply. To help make a change, we sponsor bright women from disadvantaged backgrounds through their
university degrees in science and mathematics.
We collect diversity and inclusion data solely for the purpose of monitoring the effectiveness of our equal opportunities policies
and ensuring compliance with UK employment and equality legislation. This information is confidential, used only in aggregate
form, and will not influence the outcome of your application.
With more than 54 locations throughout Europe, the Bertrandt Group has been providing engineering and development solutions for the international automotive and aerospace industries since 1974. More than 12,000 employees use their know-how and innovative strength every day to support our customers – leading manufacturers and OEMs – with integrated solutions in management, design, and industrialization. Bertrandt is now expanding into Sweden, establishing a strong and future-oriented presence in Gothenburg. Our activities cover a spectrum of expertise from electrical, electronics, and software development to design engineering, project management, quality, industrialization, and validation, all driven by innovation and a passion for technology. What to expect: Perform and coordinate CAE simulation activities within areas such as crash, passive safety, NVH, durability, aerodynamics, CFD, thermal and EMC Execute modeling, simulation, validation, and analysis of vehicle systems Analyze simulation results and translate findings into technical recommendations supporting design decisions Collaborate closely with design engineers, test engineers, and simulation specialists to optimize vehicle performance, safety, and reliability Support correlation between simulation and physical testing Prepare and present technical analysis results and documentation according to project standards Ensure adherence to CAE workflows, methods, and quality standards used in automotive development What you bring along: Proven experience in CAE / simulation engineering, including FEA, CFD and/or EMC Hands-on experience with CAE tools such as: ANSA, LS-DYNA, ANSYS, Nastran, STAR-CCM+, PowerFLOW, PreonLab, MotorCAD, GT-Suite, Dymola, Animator or similar Good understanding of CAE processes and development tools within the automotive industry Experience working in an OEM or Tier-1 automotive environment is an advantage Strong analytical skills and structured way of working Good communication skills and ability to collaborate in cross-functional, agile teams Fluent in English, both written and spoken
IHRE AUFGABEN Role Purpose: The role exists to deliver high-quality crowd movement analysis and static assessments that support safe, efficient, and robust crowd management planning. The Crowd Modelling Expert applies analytical judgement, domain knowledge, and structured reasoning to identify risks, bottlenecks, and improvement opportunities in pedestrian environments. The role focuses on interpreting crowd behavior and space performance, translating analytical findings into clear, actionable recommendations for planners, engineers, and decision-makers. Technical Scope & Nature of Work Work on this project typically involves: * Analyzing crowd movement and pedestrian behavior in complex, high-density environments. * Performing static and quasi-static assessments of pedestrian spaces, where layout, operational rules, and demand patterns are critical. * Operating at the interface between quantitative analysis and operational judgement. * Supporting decision-making where safety, capacity, and operational robustness are primary concerns. The work is decision-oriented rather than academic, with a strong emphasis on clarity, practicality, and defensibility. Key Responsibilities Problem Definition & Method Selection * Analyze pedestrian movement patterns and crowd behavior in defined areas and scenarios. * Assess capacities, densities, flow rates, queuing behavior, and spatial conflicts. * Identify critical situations such as pinch points, congestion, unsafe densities, or operational weaknesses. Scenario Evaluation & Interpretation * Support the definition and evaluation of operational scenarios (e.g. peak demand, diversions, special events, constrained conditions). * Interpret analytical results in terms of risk, safety, and operational performance. * Distinguish between theoretical capacity and realistic, safe operation. Recommendations & Practical Solutions * Develop clear, practical improvement measures (layout changes, operational rules, routing strategies, demand management). * Evaluate the effectiveness and limitations of proposed measures. * Support prioritization of interventions based on risk and impact. Documentation & Communication * Produce structured reports, figures, and presentations suitable for client and stakeholder use. * Clearly document assumptions, limitations, and confidence levels. * Communicate findings in a way that is understandable to non-specialist audiences without oversimplifying. Collaboration * Work closely with simulation engineers, planners, engineers, and monitoring / technology specialists. * Align assumptions and findings across disciplines to ensure consistency of recommendations. Level of Technical Ownership Depending on experience, the role provides: * Ownership of assigned crowd analysis work packages. * Responsibility for the technical soundness and clarity of conclusions and recommendations. * Opportunity to challenge assumptions and refine scenarios in coordination with the wider team. * Contribution to improving internal analysis approaches and standards. Engineering Mindset & Working Style This role suits individuals who: * Understand crowd behavior as a system, not just a set of numbers. * Are comfortable making judgement-based assessments under imperfect information. * Can balance safety, operational feasibility, and real-world constraints. * Prefer structured reasoning and clear communication over purely theoretical analysis. * Are motivated by improving safety and performance in complex public environments. IHR PROFIL Role-Specific Technical Focus This role specialises in crowd movement analysis and static crowd modelling, with emphasis on: * Pedestrian space performance * Crowd safety and risk identification * Operational feasibility of crowd management concepts The role complements dynamic simulation by providing interpretation, context, and operational realism. Required Skills & Experience * Strong background in pedestrian / crowd modelling, crowd safety assessment, or transport / movement analysis. * Experience translating analytical findings into actionable recommendations. * Strong technical writing and stakeholder communication skills. * Ability to reason about safety, capacity, and operational risk holistically. Preferred Experience * Experience with complex, high-density or high-stakes environments (transport hubs, events, religious sites, urban centers). * Familiarity with pedestrian or crowd modelling platforms (e.g. Legion, MassMotion, Viswalk, PEDFLOW / PEDNET, or similar). * Arabic language skills or regional background supporting contextual understanding and coordination. Education Background * BSc, MSc, or PhD in Civil Engineering, Transport Engineering, Systems Engineering, Urban Planning, Operations Research, Applied Mathematics, or a related field. * Preferred: postgraduate focus on crowd dynamics, pedestrian modelling, transport planning, or safety engineering. Optional Training / Certifications * Crowd safety or event safety training (crowd risk assessment, crowd management). * Training on pedestrian / crowd modelling platforms. * Human factors, evacuation modelling, or safety engineering coursework. Engagement Model * Freelance or project-based engagement. * Remote-first technical work with structured coordination. * On-site presence only if technically required.
ABOUT US Harmattan AI is a next-generation defense prime building autonomous and scalable defense systems. Following the close of a $200M Series B, valuing the company at $1.4 billion, we are expanding our teams and capabilities to deliver mission-critical systems to allied forces. Our work is guided by clear values: building technologies with real-world impact, pursuing excellence in everything we do, setting ambitious goals, and taking on the hardest technical challenges. We operate in a demanding environment where rigor, ownership, and execution are expected. About the Role As a Physics Simulation Engineer, you will be responsible for the simulation and analysis of mechanical behaviors in our drone systems, with a focus on vibration and thermal performance. You will set up and validate advanced physics-based models to support robust and efficient drone design. RESPONSIBILITIES * Structural & Modal Analysis: Perform Finite Element Analysis (FEA) to evaluate the dynamic behaviour and vibration modes of our systems. * Vibration Mitigation: Design and simulate passive and active damping solutions to isolate sensitive optical payloads from motor and aerodynamic vibrations. * Multi-Physics Simulation: Conduct thermal-mechanical simulations to assess the impact of heat dissipation on structural alignment, sensor calibration, and systems performances. * Aerodynamic Modeling: Analyze the impact of wind loads and flight dynamics on the mechanical stability of the platform. * Experimental Validation: Design and implement test benches for vibration and experimental modal analysis (using accelerometers, shakers, etc.) to correlate simulation models with real-world data. * Optimization: Collaborate with the mechanical engineers team to optimize mass design and material selection for maximum rigidity-to-weight ratios. CANDIDATE REQUIREMENTS * Educational Background: MSc or PhD in Mechanical Engineering, Physics, Structural Dynamics, Vibration & Control. * Technical Expertise: * Mastery of FEA tools like Simulia, Ansys, COMSOL, Abaqus… * Deep understanding of structural dynamics, modal analysis, and vibration theory. * Solid experience in test-simulation correlation (experimental modal analysis). * Ability to interpret simulation results critically, analyze experimental data and translate them into design insights * Excellent command of mathematical tools related to vibration analysis (Fourier Transform, spectral analysis, etc…) * Programming & Tools: * Proficiency in Python or MATLAB for data post-processing and simulation automation. * Familiarity with 3D CAD (CATIA, SolidWorks) and PLM environments. * Industry Experience: 5+ years of experience in high-performance robotics, aerospace, or automotive NVH (Noise, Vibration, and Harshness). Experience with UAV airframes or gimbal systems is a major plus. * Experimental Mindset: Familiarity with basic instrumentation and experimental techniques for validating simulations * Team Player: Collaborative mindset with the ability to work in cross-functional teams (design, systems, testing) * Curiosity & Drive: Demonstrated initiative, problem-solving ability, and a desire to grow into technical leadership * Soft Skills: Ability to translate complex physics data into actionable design recommendations for the mechanical team. * Commitment: 100% dedication to Harmattan AI’s mission and ambitious growth plans, ready to go the extra mile to ensure operational excellence. We look forward to hearing how you can help shape the future of autonomous defense systems at Harmattan AI.