Staff Applications Engineer

Quidient is a deep tech AI company pioneering advancements in Generalized (5D) Scene Reconstruction (GSR). GSR is poised to become one of the world’s great digital product categories (think GPS, MRI, and LMM). Our flagship GSR product, Quidient Reality®, is a powerful API that enables anyone with a mobile device to virtualize, visualize, and measure anything. Words relevant to Quidient include Generative AI, Physics-Informed AI, Large Scene Models (LSMs), Large World Models (LWMs), and API-First.

We're seeking a versatile, senior-level engineer to join our Applications Engineering team. You will own and evolve the software applications powering our flagship Quidient Reality® Engine — building across desktop, web, and platform layers to shape how users interact with 5D scene reconstruction tools.

This is a hybrid position, meaning that you will need to live within easy driving distance to our Technology Center in Columbia, Maryland.

• Design, build, and maintain applications that span desktop, web, and backend systems.
• Architect and implement API integrations connecting application layers to core engine and infrastructure services.
• Develop interactive features that support 3D content, rendering pipelines, and graphics-driven workflows.
• Drive cross-platform application experiences that enable dynamic visualization and interaction.
• Own application reliability, performance, and diagnostic tooling across the stack.
• Work on cross-platform user experiences that enable dynamic visualization and interaction.

• Partner with engine developers, infrastructure engineers, and product stakeholders to define application architecture and priorities.
• Lead code reviews, drive technical discussions, and mentor engineers.
• Evaluate and introduce new technologies — particularly in 3D, spatial computing, and immersive environments.
• Operate with autonomy in a fast-moving startup environment, balancing speed with sound engineering decisions.

• Bachelor’s degree in Computer Science or equivalent.
• 8+ years of experience building, mainting, owning complex software applications.
• Strong diagnostic and debugging skills across application layers.
• Proficiency in Python and C++.
• Experience designing and implementing API integrations.
• Demonstrated ability to work in a collaborative, fast-paced environment.
• Meet Quidient, customer, and government security requirements, which may include, but are not limited to a background check, citizenship verification, and Criminal Justice Information Services verification.

• Experience in fast-paced or startup environments.
• AWS Experience.
• Understanding of 3D rendering pipelines.
• Familiarity with 3D scanning, photogrammetry, or digital twin visualizations.
• Hands on experience with React.
• Experience with WebGPU.

• Salary Range: $140,000 - $210,000
• Annual bonus and equity as appropriate.
• Health insurance
• 401(k) with company match
• Life & disability insurance
• Opportunities for bonuses, equity, and career growth

Quidient is an Equal Opportunity Employer. Quidient will consider all qualified applicants without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other classification protected by applicable state, federal, or local laws.