Principal Solutions Architect - Aerospace & Defense New York, United States

PhysicsX Ltd; New York (NY); Hybrid; USD 175,000 - 250,000; Full time

Benefits offered by this job

Equity options

5% 401(k) contribution

Free team lunch 1x/week

Private health insurance

Enhanced parental leave

20 days Annual Leave

Personal development

Gympass / Wellhub

Flexible Spending Account (FSA)

Job summary

PhysicsX Ltd, New York, is seeking a Principal Solutions Architect for Aerospace & Defense. You will lead business development conversations with engineering and manufacturing leaders, own commercial outcomes, and oversee delivery results as Delivery Engineer.

This high‑profile role combines business development with execution, including shaping go‑to‑market, leading proposals, and maintaining executive relationships to expand the footprint. Travel 1–2 weeks/month, hybrid in NY.

Qualifications

• 8+ years of experience in A&D in commercial, product, program, or engineering roles.
• Ability to lead conversations with chief engineers, VPs, and senior leaders.
• Experience turning customer relationships into growing programs and delivering outcomes.

Responsibilities

• Drive new business development across Aerospace & Defense to identify and qualify opportunities.
• Shape go-to-market strategy with events, content, references and capabilities.
• Lead initial proposal and discovery conversations with senior engineering and program leaders.
• Own proposal development and scoping with commercial stakeholders.
• Lead delivery projects at enterprise customers with technical plans and teams.
• Manage strategic relationships and account plans to grow footprint.
• Synthesize customer needs into actionable product feedback for the PX Platform.
• Maintain a visible presence at major A&D industry events and travel 1–2 weeks/month.

Job description

Principal Solutions Architect - Aerospace & Defense

New York, United States

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 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.

Who We're Looking For

You have spent your career inside aerospace and defense — in engineering programs, advanced development, or technical consulting and can hold a substantive conversation with a chief engineer or a VP. You are energized by the challenge of turning a customer relationship into a growing program — identifying what's next, building the coalition to get there, and then delivering it.

You understand how aircraft development, defense acquisition, and advanced manufacturing work: how decisions get made, where the hard problems live, and what matters to both leaders and working-level engineers.

You have enough ML and data science depth to lead conversations with potential customers, work with technical experts to scope work, and lead cross‑functional delivery teams. You know the simulation domain well, ideally with hands‑on experience. You communicate clearly and you read people well. You are highly self‑directed: you determine your own priorities and own the follow‑through.

You may already have a visible presence in the A&D community — at technical conferences, in professional networks, or through published work. If not, you're building it.

You have 8+ years of experience in A&D in commercial, product, program, or engineering roles.

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

This is a high‑profile leadership role in our U.S. Delivery organization — with one foot in business development and one in execution. You will lead business development conversations with engineering and manufacturing leaders at A&D players — and close them. You’ll own the commercial outcomes, the customer relationships, and the delivery results that follow. Internally, this role is called a Delivery Engineer.

In practice, this means:

• Driving new business development across A&D — proactively identifying and qualifying opportunities through your network, industry events, and via direct engagement with prospective customers
• Helping to shape our A&D go‑to‑market strategy — events, content, customer references, and relevant capabilities
• Leading initial proposal and discovery conversations with senior engineering/ manufacturing/ program leaders
• Leading proposal development and scoping in partnership with commercial stakeholders
• Leading delivery projects at enterprise customers: establishing and executing technical plans, overseeing teams, and keeping focus on customer outcomes and adoption
• Owning strategic relationships with senior customer stakeholders, creating and executing account plans, and driving customer retention and footprint expansion
• Synthesizing customer needs into actionable product feedback; working with the Product team to shape how the PX Platform evolves based on what you see in the field
• Maintaining a visible presence at major A&D industry events, building PhysicsX’s reputation in the domain
• Traveling to customer sites and industry events, on average 1‑2 weeks per month.

This role is based in New York; hybrid arrangements are possible.

What We Offer

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.

Salary range: $175,000 - $250,000 depending on experience. Seniority will be assessed throughout our interview process.

Equal Employment Opportunity

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.