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Freelance Application Software Engineer Jobs (NOW HIRING)

SpaceX

Application Software Engineer

Bastrop, TX · On-site

They are seeking an Application Software Engineer to create mission-critical applications that enhance launch vehicle production and support the Starlink global internet service. The role involves ...

K2 Space

Application Software Engineer

Los Angeles, CA · On-site

$123K - $160K/yr

We're looking for engineers who are curious, collaborative, and driven to deliver mission-critical software that helps turn ambitious space projects into reality. Responsibilities * Develop highly ...

K2 Space

Application Software Engineer

Los Angeles, CA · On-site

$123K - $160K/yr

Working experience with all aspects of software engineering best practices. * Working experience ... If you need a reasonable accommodation as part of your application for employment or interviews ...

K2 Space

Application Software Engineer

Los Angeles, CA

$123K - $160K/yr

Working experience with all aspects of software engineering best practices. * Working experience ... If you need a reasonable accommodation as part of your application for employment or interviews ...

SpaceX

Sr. Application Software Engineer

Hawthorne, CA · On-site

$165K - $230K/yr

SR. APPLICATION SOFTWARE ENGINEER The application software team is the central nervous system of SpaceX - we create mission critical applications that are used throughout SpaceX to accelerate launch ...

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SpaceX

Sr. Application Software Engineer

Hawthorne, CA · On-site

They are seeking a Sr. Application Software Engineer to create mission-critical applications that enhance launch vehicle production and support the growth of Starlink as a global internet service.

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How much do freelance application software engineer jobs pay per year?

As of Jun 18, 2026, the average yearly pay for freelance application software engineer in the United States is $110,698.00, according to ZipRecruiter salary data. Most workers in this role earn between $84,000.00 and $135,000.00 per year, depending on experience, location, and employer.
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Application Software Engineer

Application Software Engineer

SpaceX

Bastrop, TX • On-site

Full-time

Posted 2 days ago

SpaceX rating

8.7

Company rating: 8.7 out of 10

Based on 144 frontline employees who took The Breakroom Quiz

13th of 60 rated aerospace companies

Job description

Job Summary:
SpaceX is a company focused on developing technologies for human life on Mars. They are seeking an Application Software Engineer to create mission-critical applications that enhance launch vehicle production and support the Starlink global internet service. The role involves developing reliable software solutions, creating new applications, and collaborating with team members to solve complex problems.
Responsibilities:
• Develop highly reliable software solutions that are used across SpaceX
• Create new applications that improve how SpaceX operates
• Build prototypes to prove out key design concepts and quantify technical constraints
• Own all aspects of software engineering and product development
• Deep dive into your users’ problems to find and create efficient solutions
• Bring your voice to the table in team collaborations on architecture, design, and code reviews
Qualifications:
Required:
• Bachelor's degree in computer science, engineering, math, or scientific discipline; OR 2+ years of professional experience building software in lieu of a degree
• Experience in full stack development
• Must be willing to work extended hours and weekends as needed
• 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.
Preferred:
• Programming experience in Python, C#.NET, Go, Scala, Java, or similar object-oriented language
• 1+ years of rigorous experience building single page web applications
• Experience with version control, continuous integration, and continuous delivery concepts
• Expertise in designing software systems
• Deep understanding of testing, continuous integration, build, deployment & monitoring
• Expertise in profiling and improving application performance
• Experience with build systems (Make, Bazel/Pants/Buck, Gradle) and package management tools (pip, npm)
• Experience with UNIX-like operating systems and tools like Terraform, Ansible, Puppet for managing them
• Experience working with in-stream data processing using Apache Kafka, RabbitMQ, ActiveMQ, or similar technologies
• Production experience with Docker and Kubernetes
• Front-end experience in Angular, React, or similar JavaScript framework
• Database experience with PostgreSQL, SQL Server, or similar database technologies
Company:
SpaceX develops and operates rockets, satellite networks, and AI infrastructure including launch, connectivity, and cloud services. Founded in 2002, the company is headquartered in Hawthorne, USA, with a team of 1001-5000 employees. The company is currently Late Stage.

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