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Commercial counsel
WRITER
San Francisco, CA · Chicago, IL · Seattle, WA · New York City, NY · Austin, TX
- $190,000 to $223,000 USD / year
…business clarity. In this role, you’ll be the trusted legal partner to our sales and procurement functions, reporting to our head of commercial legal. You’ll be drafting and negotiating…
Added just now
Travel Physical Therapist
Fusion Medical Staffing
Joliet, IL
Comprehensive medical, dental, and vision insurance with first day coverage
Added just now
Travel Physical Therapist
Fusion Medical Staffing
Rockford, IL
Comprehensive medical, dental, and vision insurance with first day coverage
Added 2 mins ago
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Executive Assistant
Infleqtion
Louisville, CO
- $90,000 to $110,000 USD / year
Events and visits: Plan executive offsites, team meetings, and customer or partner visits, coordinating facilities, technology, catering, and other logistics.
Added 2 mins ago
I
Staff Quantum Physicist, Hardware Systems Lead
Infleqtion
Chicago, IL
- $190,000 to $230,000 USD / year
…physicists and engineers can do their best work. You will also partner with experts across Infleqtion to advance our neutral-atom quantum computing…
Added 2 mins ago
I
Accounts Payable Manager (Finance and Accounting)
Infleqtion
Louisville, CO
- $100,000 to $120,000 USD / year
Partner with the GL team on accruals, journal entries, prepaid expense amortization, account reconciliations, and adjustments to support an accurate and timely close.
Added 4 mins ago
Home Health RN - Registered Nurse
Supplemental Health Care
Wausau, WI
Nurse will have a designated territory of coverage
Added 17 mins ago
Sr. Model Engineer
SpaceXAI
Palo Alto, CA
…includes equity, comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short & long-term disability insurance, life insurance, and various other discounts…
Added 17 mins ago
Software Engineer, Research Tooling
SpaceXAI
Palo Alto, CA
…includes equity, comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short & long-term disability insurance, life insurance, and various other discounts…
Added 17 mins ago
Software Engineer, Enterprise Platform
SpaceXAI
San Francisco, CA
…includes equity, comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short & long-term disability insurance, life insurance, and various other discounts…
Added 17 mins ago
Software Engineer, Pretraining Data
SpaceXAI
Palo Alto, CA
- Work independently (and alongside AI agents) and partner with Data Quality and Data Platform so new coverage shows up as better tokens in training runs
Added 17 mins ago
Software Engineer, Model Lifecycle and Signals
SpaceXAI
New York, NY · San Francisco, CA
…includes equity, comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short & long-term disability insurance, life insurance, and various other discounts…
Added 17 mins ago
Sr. Software Engineer, ML Platform
SpaceXAI
Palo Alto, CA
…includes equity, comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short & long-term disability insurance, life insurance, and various other discounts…
Added 17 mins ago
Software Engineer, Developer Productivity
SpaceXAI
San Francisco, CA · New York, NY
…includes equity, comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short & long-term disability insurance, life insurance, and various other discounts…
Added 27 mins ago
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Retail - Sales Manager/Department Manager (Bench) - Full-time
Michaels
MSP, MN
- Full-time
Provide Manager-on-Duty (MOD) coverage, maintaining floor leadership, service standards, and operational continuity.
Added 27 mins ago
Retail Manager F.T.- Merchandising (Early Mornings)
Michaels
MSP, MN
Provide Manager-on-Duty (MOD) coverage, maintaining floor leadership, service standards, and operational continuity.
Added 27 mins ago
Retail Manager F.T. - Personal Designer/Custom Picture Framing
Michaels
MSP, MN
Added 27 mins ago
CO
Executive Assistant to the Vice President for Institutional Advancement
College of Saint Benedict & Saint John's University
St. Joseph, MN
- $24.76 to $29.09 USD / hour
…Executive Assistant to the Vice President (EA) is a central partner in this work: a trusted colleague who helps the Vice President lead with focus and care, keeps the division’s priorities…
Added 27 mins ago
CONTINUOUS IMPROVEMENT ENGINEER
Wells Concrete Products, Inc.
Albany, MN
…work-life balance. Benefits include medical, dental, and vision insurance, company-paid disability and life insurance, wellness incentives, paid holidays, PTO, flexible spending accounts,…
Added 27 mins ago
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Residential Program Director
Nexus Family Healing
Austin, MN
- $90,000 to $100,000 USD / year
Multiple options for health insurance coverage
Added 27 mins ago
BH
Part-Time Property Associate (20 hours/week)
Beacon Hill Solutions Group
Edina, MN
- $23 to $25.25 USD / hour
- Part-time
The Property Associate will partner closely with the property management team while assisting with tenant requests, vendor coordination, financial processing, lease administration,…
Added 28 mins ago
GS
Workforce Development Supervisor - Automotive
Goodwill-Easter Seals of Minnesota
Saint Paul, MN
- $63,458 to $88,988 USD / year
Must have proof of auto insurance with a minimum of $300,000 combined limit for bodily injury and property damage coverage.
Added 28 mins ago
GS
Re-Entry Counselor
Goodwill-Easter Seals of Minnesota
Saint Paul, MN
- $26.52 to $37.2 USD / hour
Must have proof of auto insurance with a minimum of $300,000 combined limit for bodily injury and property damage coverage.
Added 28 mins ago
Director of Business Development, Veteran's Affairs
Coloplast
Minneapolis, MN
…ensuring aligned performance, consistent execution, and effective coverage of VA Medical Centers and Visn's across the Continence Care…
Added 28 mins ago
NF
Residential Program Director
Nexus Family Healing
Minneapolis, MN
- $90,000 to $100,000 USD / year
Multiple options for health insurance coverage

SpaceXAI

Software Engineer, Model Lifecycle and Signals

New York, NY, United States
San Francisco, CA, United States

$140,000 - $225,000 USD

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Job details

Pay: $140,000 - $225,000 USD
Experience: OR 2+ years of professional experience building software in lieu of a degree
Posting language: English
Posted: Nov 9, 2026

Original job description

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 making life multiplanetary and expanding consciousness to the stars.

SpaceXSI is building Super Intelligence to help humanity understand the universe. Our teams are building the full Super Intelligence stack: from our Colossus supercomputers, to Grok models, to our suite of applications, including Grok Bot, Grok Build, Grok Imagine, Grok Voice, and X. We're creating a powerful flywheel where more compute trains better models, better models power more useful products, and what we learn from people using those products shapes what we build next.

SOFTWARE ENGINEER, MODEL LIFECYCLE AND SIGNALS

As a Software Engineer on the Model Lifecycle and Signals team at SpaceXSI, you'll own the bridge between frontier models and every user-facing Cursor product, used at a scale few teams ever see. You'll decide when we use which model, spot where models go off track and build the guardrails to keep them on it, and shape what the next generation of models should learn. This role sits at the intersection of infrastructure, data, and product: you'll bring models from preview to production, dig into real-world data to find out what's actually working, and partner with research, inference, product, and data science teams to turn that evidence into better products and better models. Every improvement you make compounds across our products and every model we ship.

RESPONSIBILITIES:

Get new frontier models into users' hands the day they're ready, and retire old ones without anyone noticing
Evaluate internal and external preview models before launch and give meaningful feedback to the teams building them
Build Cursor Router (https://cursor.com/docs/cursor-router): decide which model handles each request, balancing quality, speed, and cost at massive scale
Build the eyes and ears of the product, and the experimentation platform that puts them to work: signals that show where each model shines, where it goes off track, and what "better" actually means

BASIC QUALIFICATIONS:

Bachelor's degree in computer science, engineering, math, or scientific discipline; OR 2+ years of professional experience building software in lieu of a degree

PREFERRED SKILLS AND EXPERIENCE:

Track record of shipping production systems people rely on, owning problems end to end, and automating painful processes rather than repeating them
Experience building and operating evaluation, measurement, or model serving systems, such as AI evals, experimentation, ranking/relevance, or routers
Ability to turn ambiguous "quality" questions into concrete metrics, pipelines, and decisions
Fluency with data and the ability to collaborate effectively with data scientists and researchers
Taste and real curiosity about model and agent behavior, including trying new models the day they come out and forming opinions about where each one shine

ADDITIONAL REQUIREMENTS:

Onsite role: must be able to work in person at the New York or San Francisco office

COMPENSATION AND BENEFITS:

The annual compensation range for this role is listed below.

Annual Salary:

$140,000 - $225,000 USD

Your actual level and base salary will be determined on a case-by-case basis and may vary based on the following considerations: job-related knowledge and skills, education, and experience.

Base salary is just one part of our total rewards package at SpaceXSI, which also includes equity, comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short & long-term disability insurance, life insurance, and various other discounts and perks.