Jobs in the United States

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Added 3 mins ago
Senior Staff Software Engineer
Nubank
Palo Alto, CA · Virginia, VA · Miami, FL
This is a hybrid role, requiring attendance in the office 3 days per week
Added 4 mins ago
A
Sr. Machine Learning Engineer
Adobe
San Jose, CA
- $172,500 to $306,625 USD / year
We are looking for a Senior Machine Learning Engineer to join the Document Product Group and build agentic frameworks from the ground up. You will design the memory and retrieval systems…
Added 4 mins ago
Lead Engineer, IT Services
sephora.com
United States
Ready for a career glow up? As a Lead Engineer, IT Services Engineering, you'll independently turn complex and ambiguous problems into secure, scalable, reliable, and supportable production…
Added 12 mins ago
Marketing Engineer
Basata Inc
Tempe, AZ
…AEO (answer engine optimization), and website conversion, and building AI-powered workflows that make the whole marketing department faster, starting with events and…
Added 13 mins ago
Associate Technical Engineer (Hybrid)
AFMIC American Family Mutual Insurance Company, S.I.
United States
American Family Insurance is seeking an Associate Technical Engineer to support the design, implementation, and ongoing enhancement of enterprise API Management and Developer Enablement…
Added 14 mins ago
TT
Software Engineer
True Talent Solutions Partners
New York, NY
- $192,500 to $258,000 USD / year
Join an early-stage AI software engineering team building products that help in-person sales teams improve through conversation insights. You will ship full-stack features from idea to…
Added 15 mins ago
EA
Sr. Thermal Engineer
Eridu AI
Saratoga, CA
- $210,000 to $270,000 USD / year
Eridu AI is a well-funded startup in Saratoga, CA building next-generation hardware for AI data center networking. Our systems operate at power densities well beyond conventional networking…
Added 15 mins ago
Mechanical Engineer 3
Lam Research
Tualatin
‘Virtual Flex’ you’ll work 1-2 days per week on-site at a Lam or customer/supplier location, and remotely the rest of the time
Added 15 mins ago
G
Integrations Engineer
Granted
Remote, United States
- $150,000 to $225,000 USD / year
…coverage shouldn't be this hard to navigate. At Granted, we're building the one solution every American can turn to for…
Added 16 mins ago
Principal Materials Innovator, Apparel Innovation
Nike
Beaverton, OR
…Product, Product Development, and Advanced Manufacturing, while building external relationships with suppliers, manufacturers, equipment providers, research institutes, laboratories,…
Added 17 mins ago
Design Engineer
Lippert
Elkhart, IN
…bettering the RV, marine, automotive, commercial vehicle and building products industries. We combine our strategic manufacturing capabilities with the power of our winning team culture to…
Added 18 mins ago
Senior Site Reliability Engineer
Varda Space Industries
El Segundo, CA
…engineers to help us get there. As a Senior Site Reliability Engineer, you'll be critical in building, scaling, and maintaining the infrastructure that powers our systems on Earth, in…
Added 18 mins ago
Security Designer
Mead & Hunt
Myrtle Beach, SC
The successful candidate must have at least one of the following: · If no degree, must have at least 7 years of relevant security design experience specific to building engineering
Added 22 mins ago
Mechanical Engineer
Actalent
Bingen, WA
MECHANICAL ENGINEER, NEW PRODUCT INTRODUCTION
Added 22 mins ago
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Automation Controls Engineer, Facilities
Actalent
Sacramento, CA
- $135,000 to $160,000 USD / year
Ready to work on the systems that keep a pharmaceutical facility running? We're looking for an Automation Controls Engineer to support critical facility, utility, and environmental control…
Added 24 mins ago
Electrical Engineer, Power Distribution & Controls (E)
Ann Arbor, MI
Electrical Engineers are core to KLA’s technology, while we do not currently have an opening, we are always building our Electrical Engineering talent community, we are interested in…
Added 26 mins ago
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Software Engineer
TEKsystems
Warren, MI
- $60 to $70 USD / hour
…Overview: This company is seeking a Senior Planisware Software Engineer to design, build, and maintain our enterprise Portfolio and Project Management (PPM) platform. In this role, you will…
Added 26 mins ago
Principal / Sr. Principal Engineer Reliability
Northrop Grumman
Elkton
Northrop Grumman Weapons Systems is currently seeking Principal Reliability Engineer 3 or Sr. Principal Reliability Engineer 4 for our Elkton, Maryland location.
Added 26 mins ago
Controls and Simulation Engineer Level 3/4
Northrop Grumman
Sunnyvale
Northrop Grumman Mission Systems is seeking Systems Controls and Simulation Engineer Level 3 or 4 for the development and ongoing support of new and existing turbine generators used in…
Added 27 mins ago
Manager Facilities Engineering 2
Northrop Grumman
Elkton
Added 27 mins ago
Principal / Sr Principal Electrical Engineer Facilities
Northrop Grumman
Elkton
As Principal Electrical Facilities Engineer 3 or Sr. Principal Electrical Facilities Engineer 4, you will be the primary technical lead for the design, operation, and optimization of…
Added 27 mins ago
Staff Engineer Mission Assurance - 20633
Northrop Grumman
Roy
Northrop Grumman Defense Systems is seeking to hire a Staff Mission Assurance Engineer to join the Strategic Deterrent Systems (SDS) division. This position is located in Roy, UT.
Added 27 mins ago
Principal / Sr Principal Engineer Facilities
Northrop Grumman
Elkton
Northrop Grumman Weapons Systems is currently seeking Principal Facilities Engineer 3 or Sr. Principal Facilities Engineer 4 for our Elkton, Maryland location.
Added 27 mins ago
Senior Principal Technical Operations Project Manager
Northrop Grumman
Redondo Beach
…achieve mission success. Join the team and help shape how we engineer, integrate, and operate the systems of…
Added 28 mins ago
CC
Data Engineer
Clear Capital | CubiCasa | restb.ai
Reno, NV
- $120,000 to $153,700 USD / year
Clear Capital is building the future of real estate data. Our goal is knowing more about a property than anybody else and in the process, making home ownership valuations more fair and…

SpaceXSI

Sr. Software Engineer, Ads Product

Palo Alto, CA, United States

$180,000 - $330,000 USD

Apply on job-boards.greenhouse.io About employer

Applications open in a new tab.

Job details

Pay: $180,000 - $330,000 USD
Experience: 5+ years of experience building software through internships, projects, research, open-source work, startups, or full-time roles
Posting language: English
Posted: Nov 6, 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.

SR. SOFTWARE ENGINEER, ADS PRODUCT

X Ads is one of the highest-leverage product areas at X. You’ll work on systems that operate at massive scale, directly affect the business, and are being rebuilt with modern infrastructure and AI at the center. This is an opportunity to join a small, fast-moving team where early-career engineers can take on real ownership, learn from strong engineers, and ship products that matter.

We’re looking for high-slope software engineers who want to help rebuild and transform the X Ads Platform using SpaceXSI's infrastructure and AI stack. This role is a great fit for engineers who are early in their careers but learn quickly, ship fast, and want to work on products and systems that operate at massive scale. You do not need to have deep ads experience already, but you should be excited to learn how large-scale advertising systems work and how AI can make ads more relevant, useful, and effective.

You’ll work across product, backend systems, infrastructure, and AI-powered features that directly impact the majority of X’s revenue.

RESPONSIBILITIES:

Build and ship product features across the X Ads Platform
Work on systems related to ad delivery, targeting, optimization, measurement, and advertiser experience
Use SpaceXSI's infrastructure and AI capabilities to improve the performance and quality of advertising products
Contribute to distributed systems that need to be reliable, fast, and scalable
Collaborate closely with engineers, product leads, and cross-functional partners to turn ideas into working products
Learn quickly, take ownership, and operate in a fast-moving environment where high-quality execution matters
Debug, maintain, and improve production systems that serve real users and drive significant business impact

BASIC QUALIFICATIONS:

5+ years of experience building software through internships, projects, research, open-source work, startups, or full-time roles

PREFERRED SKILLS AND EXPERIENCE:

Strong software engineering fundamentals
Ability to write clean, maintainable code and learn new codebases quickly
Strong problem-solving skills and comfort working through ambiguity
Interest in backend systems, distributed systems, data pipelines, product engineering, or AI applications
A bias toward action: you like shipping, learning from real users, and improving quickly
Strong ownership mindset and willingness to take responsibility for meaningful parts of the product
Excitement about building high-quality product experiences for advertisers and users
Experience with ads, recommendations, search, ranking, marketplaces, payments, analytics, or growth systems
Experience working with large-scale backend systems or data processing pipelines
Experience with React, Golang, Python, Rust, gRPC, Java, or Scala
Experience with machine learning, LLMs, experimentation, ranking, or optimization systems
Prior startup, research, internship, or high-impact project experience
Experience with React, Golang, Python. Rust, gRPC, and/or Java/Scala
Strong fundamentals, learning speed, and ability to ship

COMPENSATION AND BENEFITS:

$180,000 - $330,000 USD

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. SpaceXSI is an equal opportunity employer. For details on data processing, view our Recruitment Privacy Notice.

Apply on job-boards.greenhouse.io About employer

More about this job

Skills

Google Ads
BASIC
Research
Problem solving
Process data
React
Go
Python
Rust
Oracle Java
Scala
Machine learning

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Jobs in the United States