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Senior Application Security Engineer Jobs (NOW HIRING)

SpaceX

Sr. Application Security Engineer

Redmond, WA · On-site

$168K - $230K/yr

Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars. SR. APPLICATION SECURITY ENGINEER At SpaceX we're leveraging our ...

SpaceX

Sr. Application Security Engineer

Redmond, WA · On-site

$168K - $230K/yr

Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars. SR. APPLICATION SECURITY ENGINEER At SpaceX we're leveraging our ...

Qualia

Senior Application Security Engineer

Austin, TX · Remote

$180K - $210K/yr

WHAT YOU\'LL WORK ON We\'re hiring a Senior Application Security Engineer to join a small, high-leverage AppSec team. This is a deep-technical IC role with a staff-leaning scope: you\'ll set the ...

Barracuda Networks Inc.

$52.25 - $69.75/hr

Envision yourself at Barracuda As a Senior Application Security Engineer, you'll help shape the future of our AppSec program. You'll work effectively and efficiently in a small, high-impact team ...

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How much do senior application security engineer jobs pay per year?

As of Jun 23, 2026, the average yearly pay for senior application security engineer in the United States is $137,131.00, according to ZipRecruiter salary data. Most workers in this role earn between $114,500.00 and $157,000.00 per year, depending on experience, location, and employer.

What is a Senior Application Security Engineer job?

A Senior Application Security Engineer is responsible for ensuring the security of software applications by identifying vulnerabilities, implementing security best practices, and working with development teams to integrate secure coding principles. They conduct security assessments, perform threat modeling, and use security tools to detect and remediate risks. Additionally, they help establish security policies, oversee compliance with industry standards, and provide guidance to developers and stakeholders on security-related matters. Their goal is to protect applications from cyber threats while enabling business continuity and innovation.

What are the key skills and qualifications needed to thrive in the Senior Application Security Engineer position, and why are they important?

To thrive as a Senior Application Security Engineer, you need a solid understanding of secure software development, threat modeling, vulnerability assessment, and a degree in computer science or a related field. Familiarity with tools like static and dynamic application security testing (SAST/DAST), code review platforms, and certifications such as CISSP or OSCP are often required. Strong analytical thinking, attention to detail, effective communication, and the ability to collaborate are standout soft skills for this role. These capabilities help ensure robust protection of applications, support safe software delivery, and enable effective teamwork across engineering and security teams.

What are the typical responsibilities of a Senior Application Security Engineer on a day-to-day basis?

A Senior Application Security Engineer typically spends their days reviewing application code for security vulnerabilities, performing threat modeling, and collaborating closely with development teams to ensure secure coding practices are followed. They may also lead security assessments, coordinate penetration tests, and work on developing or enforcing security policies within the organization. Regular interaction with cross-functional teams, such as DevOps and IT, is common to address security issues throughout the software development lifecycle. This role also often involves mentoring junior engineers and staying up to date with the latest security threats and technologies.

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Senior Application Security Engineer jobs near you
Sr. Application Security Engineer

Sr. Application Security Engineer

SpaceX

Redmond, WA • On-site

$168K - $230K/yr

Other

Medical, Dental, Vision, Life, Retirement, PTO

Posted 5 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

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.
SR. APPLICATION SECURITY ENGINEER
At SpaceX we're leveraging our experience in building rockets and spacecraft to deploy Starlink, the world's most advanced broadband internet system. Starlink is the world's largest satellite constellation and is providing fast, reliable internet to millions of users worldwide. We design, build, test, and operate all parts of the system - thousands of satellites, consumer antennae that allow users to connect within minutes of unboxing, and the software that brings it all together. We've only begun to scratch the surface of Starlink's potential global impact and are looking for best-in-class engineers to help maximize Starlink's utility for communities and businesses around the globe.
As a Security Software Engineer, you will influence the security of Starlink.com and associated internet infrastructure which our millions of customers use every day to manage their Starlink account and equipment. In this role, you will continually assess Starlink Internet infrastructure and applications for security issues, provide detailed early-stage design feedback to developers, and ensure we're protecting customer data. This role will focus on identifying new security issues, driving long-term improvement, and providing continuous guidance to developers as the Starlink system grows. You will also be responsible for monitoring and responding to bug bounty submissions.
Ideally, you have notable skills in one or more of the following:
  • Web and mobile application penetration testing
  • Web and mobile application software development
  • Defending production infrastructure

Being flexible, communicating clearly, and establishing and maintaining productive working relationships with other engineering teams are paramount to success. If you are passionate about building quality products, love the challenges of outsmarting adversaries, and want to make an impact on an inter-planetary scale, then you will fit right in.
RESPONSIBILITIES:
  • Design and build security infrastructure for Starlink.com and the Starlink mobile application
  • Continually audit and assess Starlink Internet infrastructure for security issues
  • Design security into software processes and provide developer guidance for building secure applications
  • Monitor bug bounty submissions and coordinate response to legitimate submissions
  • Build prototypes and help identify, design, and test security improvements
  • Further our mission of providing secure and reliable Internet to underserved communities

BASIC QUALIFICATIONS:
  • Bachelor's degree in computer science or another STEM discipline and 5+ years of professional experience in security software development; OR 7+ years of professional experience in security software development in lieu of a degree
  • Experience with one or more software development languages (i.e. Python, C++, Golang, C#)
  • Experience designing and implementing application security solutions for web and or mobile applications

PREFERRED SKILLS AND EXPERIENCE:
  • Experience contributing security improvements to complex systems
  • Track record of identifying high-impact vulnerabilities in real-world applications
  • Fundamental understanding of networking and network protocols
  • Flexibility, communicating clearly, and establishing and maintaining productive working relationships with other engineering teams
  • Excellent communication skills, both written and verbal
  • Ability to work both independently and in a team
  • Demonstrated ability to deal with ambiguity and to learn new technologies quickly
  • Advanced degree in a technical or engineering discipline

ADDITIONAL REQUIREMENTS:
  • Must be willing to work extended hours and weekends as needed

COMPENSATION AND BENEFITS:
Pay Range:
Security Software Engineer /Senior: $168,000.00 - $230,000.00/per year
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 your total rewards package at SpaceX. You may also be eligible for long-term incentives, in the form of company stock, stock options, or long-term cash awards, as well as potential discretionary bonuses and the ability to purchase additional stock at a discount through an Employee Stock Purchase Plan. You will also receive access to comprehensive medical, vision, and dental coverage, access to a 401(k)-retirement plan, short and long-term disability insurance, life insurance, paid parental leave, and various other discounts and perks. You may also accrue 3 weeks of paid vacation and will be eligible for 10 or more paid holidays per year. Exempt employees are eligible for 5 days of sick leave per year. Company shuttles are offered to employees for round trip travel from select Seattle locations to the SpaceX Redmond office Monday to Friday.
ITAR REQUIREMENTS:
    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

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