SpaceXSI is seeking an Application Security Engineer focused on protecting the security and integrity of payments and financial products throughout the software development lifecycle. In this onsite Washington, DC role, you will help strengthen controls for code security, CI/CD pipeline security, threat modeling, and vulnerability management, with support from security tooling such as SBOMs and agentic or LLM-based solutions.
What you’ll do
- Perform in-depth code reviews and static analysis to identify and mitigate security vulnerabilities in financial applications
- Design and implement secure coding guidelines and best practices for development teams
- Work with development teams to embed security practices into the CI/CD pipeline
- Conduct threat modeling and risk assessments for payments, wallets, ledgers, and related product surfaces, including mitigations for fraud, abuse, and unauthorized movement of funds or credits
- Oversee vulnerability tracking and remediation, providing guidance to development teams
- Manage the bug bounty program, including intake, triage, researcher communication, and coordinated disclosure
- Support application security incident response activities
- Monitor emerging threats targeting financial and cloud-native systems and continuously improve controls
- Evaluate and secure software supply chains, producing and maintaining Software Bills of Materials (SBOMs)
- Design and implement agentic and LLM-based solutions to help detect, investigate, or prevent security problems
Required qualifications
- Bachelor’s degree in Computer Science, Cybersecurity, or a related field
- 3-5 years of experience in application security, with a strong focus on code security practices
- Experience in payments, money transmission, digital wallets, or related financial platforms
- Deep understanding of secure coding practices, application security frameworks, and common vulnerabilities (including OWASP Top 10)
- Proficiency in Python or Rust with secure coding practices in these languages
- Experience securing CI/CD pipelines and implementing DevSecOps practices
- Familiarity with software supply chain security and SBOM generation tools
- Experience with security testing tools such as Burp Suite and OWASP ZAP, plus static and dynamic code analysis
- Experience securing payments, wallets, ledgers, or other high-value transaction systems, including controls against fraud, abuse, and integrity issues
- Experience designing and implementing agentic and LLM-based solutions for security problems
- Excellent communication skills to explain complex security issues to technical and non-technical audiences
Technologies
- Python, Rust
- OWASP Top 10
- Burp Suite, OWASP ZAP
- SBOMs, SBOM generation tools
- DevSecOps
- Agentic solutions, LLM-based solutions
- CI/CD pipelines
Compensation and benefits
USD 100,000 - 258,000 per yearly salary range. Base salary is part of a total rewards package that includes equity, comprehensive medical, vision, and dental coverage, access to a 401(k), short & long-term disability insurance, life insurance, and various other discounts and perks.
Preferred skills and experience
- Hands-on experience securing applications on AWS (other cloud platforms are a plus)
- Relevant security certifications (e.g., BSCP, OSCP, OSWE)
- Experience managing bug bounty programs
- Background in data privacy and compliance relevant to financial products and cloud-native applications
- Experience with GitOps and infrastructure-as-code security
- Experience building custom security tooling to enhance and automate security processes
- Contributions to open-source security projects or tools
ITAR requirements
To conform to U.S. Government export regulations, applicants must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (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.
