Software Engineer (Defense)

Mosaic.tech; Denver (CO); On-site; USD 120,000 - 190,000; Full time

Job summary

Air Space Intelligence (ASI) is seeking a senior software engineer to conceptualize and build products from scratch (0 to 1) and refine existing solutions (1 to n). You will work with a cross-functional team to deliver decision-support tools for aviation and critical infrastructure.

The role requires proficiency in Rust or Python, familiarity with LLM tooling, and the ability to travel up to 50%. Active security clearance and experience building high-performance, scalable systems are valued.

Qualifications

• Proficiency in at least one modern programming language.
• Active security clearance.
• Senior level experience building and maintaining high-performance, scalable systems.
• Willingness to travel up to 50%.

Responsibilities

• Conceptualize and build innovative products from scratch (0 to 1) and enhance existing solutions (1 to n).
• Work with a cross-functional team including end-users, engineers, and deployment strategists.
• Provide decision-making tools to end users and improve airspace safety.
• Set standards for excellence in a fast-paced environment.

Skills

Rust

Python

LLM tools

Collaborative

Independent work

Security clearance

Travel up to 50%

High-performance systems

Tools

Git

Job description

About Air Space Intelligence

ASI's mission-critical technology powers decision-making across aviation, defense, energy, and other critical infrastructure domains. Backed by top-tier investors including Andreessen Horowitz, Spark Capital, and Renegade Partners, ASI delivers operational decision superiority—compressing days of analysis into seconds of action. ASI is leading the way and pushing the boundaries of what’s possible.

What You Will Do:

Your responsibilities will span from conceptualizing and building innovative products from scratch (0 to 1) to enhancing and optimizing existing solutions as they evolve (1 to n). You will operate in a dynamic and fast-paced environment, where you will have the opportunity to shape and set the standards for excellence. You will work with a cross-functional team, including end-users, other engineers, and deployment strategists. You will solve real problems that make a difference, providing decision-making tools to end users and improving the safety of our airspace.

What We Value:

• Proficiency in at least one modern programming language. We work in Rust and Python and expect you to have the foundation to quickly learn these languages.
• Proficient in leveraging modern LLM tools to accelerate development workflows and enhance code quality.
• Ability to collaborate with others across multiple teams.
• The grit to get the job done despite unforeseen obstacles.
• An aptitude to lead and work independently.
• Flexibility to adjust to changing business priorities.
• Curiosity and a drive to grow.
• Willingness to travel up to 50%.
• Active security clearance.
• At senior levels: experience in building and maintaining high-performance, scalable systems.

How We Hire:

We look at the interview process not as a screening or test, but rather as an opportunity to simulate what it would look like working together. We build the interview process around you. ASI works with export controlled technology and restricted U.S. Government data, including on contracts mandating U.S. immigration status and location restrictions for performing personnel. Employment offers are contingent on ability to timely obtain all required authorizations for contemplated job duties.