ABOUT THE ROLE:We are seeking a skilled and innovative Application Security Engineer to join 𝕏 Money. In this role, you will protect the security and integrity of our payments and financial products throughout the software development lifecycle, with a particular focus on code security, CI/CD pipelines, and systems that move and hold customer funds. Experience securing fintech, payments, digital wallet, ledger, or similar high-value platforms, where fraud, abuse, and unauthorized transfers are a constant concern, is strongly preferred.
RESPONSIBILITIES:- Conduct 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
- Collaborate closely with development teams to integrate security practices throughout the CI/CD pipeline
- Perform threat modeling and risk assessments for payments, wallets, ledgers, and related product surfaces, and develop mitigation strategies for fraud, abuse, and unauthorized movement of funds or credits
- Manage vulnerability tracking and remediation efforts, providing guidance to development teams
- Manage the bug bounty program, including intake, triage, researcher communication, and coordinated disclosure
- Support incident response activities related to application security
- Stay current on emerging threats against financial and cloud-native systems, and continuously strengthen our controls
- Evaluate and secure software supply chains, including producing and maintaining Software Bills of Materials (SBOMs)
- Design and implement agentic and LLM-based solutions that help detect, investigate, or prevent security problems
BASIC 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 (e.g., OWASP Top 10)
- Proficiency in Python or Rust and experience 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 (e.g., Burp Suite, OWASP ZAP) and static/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, able to explain complex security issues to both technical and non-technical audiences
PREFERRED SKILLS AND EXPERIENCE:- Hands-on experience securing applications on AWS; familiarity with other cloud platforms is 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
COMPENSATION AND BENEFITS:$100,000 - $258,000 USD
Base salary is just one part of our total rewards package at SpaceXAI, 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.
