Principal Software Engineer (Platform Team)

SpaceX
Starbase, US
On-site

Who this role is best for

Aimed at senior engineers with AI/ML platform expertise who thrive in high-impact, entrepreneurial leadership roles at a space technology company in Texas.

Best fit for

  • Entrepreneurial engineers who spot and deliver transformative AI solutions at scale.
    — “Entrepreneurial leadership with a proven ability to spot and deliver transformative solutions
  • Architects of secure, scalable AI gateways and proxy systems for enterprise use.
    — “architect platforms that convert engineering know-how into tested software, automation, and reliable data stores at massive scale
  • Leaders who drive cultural change toward AI-first workflows across organizations.
    — “driving cultural change toward AI-first workflows

Things to consider

  • Must be a U.S. citizen, green card holder, or eligible for required authorizations.
    — “applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident
  • Role requires deep expertise in Docker/Kubernetes and multi-cloud integrations.
    — “Expert-level experience with Docker/Kubernetes ecosystems, zero-trust security models, and multi-cloud/frontier-model integrations

How to stand out

  • Showcase specific examples of scaling AI platforms for hundreds of users.
    — “Demonstrated success architecting and scaling AI gateways, secure proxy layers, or enterprise MLOps platforms that serve hundreds of users
  • Highlight initiatives where you built platforms others loved to use.
    — “building platforms that others love to use
  • Emphasize your track record in mentoring and establishing technical standards.
    — “establishing standards, mentoring senior engineers, building reusable assets
Pace · Fast PacedCollaboration · HighAutonomy · HighDecision Impact · CompanyLevel · Principal

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • secure, scalable AI platform
  • reliable data stores
  • risk-mitigation tools
Typical background
AIplatform architecturesecurity

Skills & requirements

Required

AIPlatform ArchitectureSecurityScalability

Preferred

Risk MitigationCode Review

About the role

Original posting from SpaceX via Greenhouse

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars.

PRINCIPAL SOFTWARE ENGINEER (PLATFORM TEAM) 

The Platform Team builds the foundational tooling and security infrastructure that empowers every team at SpaceX to harness AI effectively. This team creates secure, scalable gateways and proxy systems that allow engineers and operators across the company to write code faster, perform advanced data analysis, connect AI to their daily tools and problems, and turn ideas into deployed solutions with confidence. By onboarding new frontier models, expanding compute capacity, optimizing proxy efficiency for logging and control, and building shared prompts, skills, and infrastructure, this team unlocks reliable, high-impact AI capabilities across the entire organization. 

As a Principal Software Engineer for SpaceX's AI platform, you will set the technical vision and serve as a senior leader and entrepreneurial force for the leanest and most effective applied use of AI at SpaceX. You will architect platforms that convert engineering know-how into tested software, automation, and reliable data stores at massive scale while pioneering risk-mitigation tools such as intelligent code review and PR assistants. Current systems are built with Docker containers acting as secure gateways and proxies that integrate with any cloud compute provider and multiple frontier model providers. Your strategic leadership will be critical to accelerating SpaceX production and development by making trustworthy AI a core capability for every team at SpaceX. 

RESPONSIBILITIES: 

Define and drive the long-term technical vision and architecture for SpaceX’s AI platform and security infrastructure

Lead high-impact initiatives with full ownership over strategy, design, implementation, and successful company-wide rollout

Oversee onboarding of frontier models, massive compute scaling, and continuous optimization of proxy systems for security, efficiency, logging, and control

Lead adoption efforts at scale — establishing standards, mentoring senior engineers, building reusable assets, and driving cultural change toward AI-first workflows

Proactively identify and execute on the highest-leverage opportunities to turn ideas into production software, trained models, and automated systems with managed, reliable compute

Invent and scale advanced risk-mitigation capabilities (AI code review, automated PR tools, safety systems) that protect and accelerate the business

Establish best practices and technical direction for lean, secure, and maximally effective applied AI across the company

Serve as a key technical advisor and collaborator with leadership and cross-functional teams to align platform capabilities with SpaceX’s most ambitious goals 

BASIC QUALIFICATIONS: 

Bachelor’s degree in computer science, computer engineering, or other engineering discipline and 7+ years of professional experience building and scaling production platforms; OR 9+ years of professional experience building and scaling production platforms in lieu of a degree

Experience designing and operating large-scale AI/ML platforms, internal developer platforms, or mission-critical infrastructure  

PREFERRED SKILLS AND EXPERIENCE: 

Demonstrated success architecting and scaling AI gateways, secure proxy layers, or enterprise MLOps platforms that serve hundreds of users

Expert-level experience with Docker/Kubernetes ecosystems, zero-trust security models, and multi-cloud/frontier-model integrations

Deep expertise in MLOps, distributed compute, model lifecycle management, and building highly observable, reliable systems

Strong history of enabling organization-wide impact through technical leadership, mentoring, and creation of shared platforms and standards

Entrepreneurial leadership with a proven ability to spot and deliver transformative solutions

Mastery of Python and broad expertise across modern languages and tooling

Extensive experience with infrastructure-as-code, advanced observability, and building platforms that others love to use

Deep passion for responsible AI, developer velocity, and converting deep engineering knowledge into reliable automation at planetary scale 

ITAR REQUIREMENTS:

To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here.  

SpaceX is an Equal Opportunity Employer; employment with SpaceX is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

Applicants wishing to view a copy of SpaceX’s Affirmative Action Plan for veterans and individuals with disabilities, or applicants requiring reasonable accommodation to the application/interview process should reach out to EEOCompliance@spacex.com. 

Source: SpaceX careers (Greenhouse)

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