Application Security Engineer

Arcadia is an AI-powered energy intelligence platform that helps businesses manage utility bills, energy procurement, and sustainability reporting. The Application Security Engineer will own vulnerability management, integrate security automation into CI/CD pipelines, conduct threat modeling, support application-layer incident response, and advise engineering teams on security practices.

Responsibilities:

• Own the end-to-end vulnerability management lifecycle: triage, prioritize, and drive remediation of findings from SAST, DAST, and SCA tooling in partnership with engineering squads
• Maintain, optimize, and extend security tooling integrations within the CI/CD pipeline with the goal of automating everything that can be automated
• Launch and run a Security Champions program, including workshops and office hours, to embed security knowledge directly into development teams across multiple geographies
• Act as the application-layer subject matter expert during security incidents, supporting triage, root cause analysis, and remediation
• Partner with Product and Engineering leadership to introduce security touchpoints earlier in the SDLC, including threat modeling and design review processes

Requirements:

• 3–5 years of dedicated Application Security experience in a SaaS or cloud-native environment
• Hands-on proficiency with at least two of the following: SAST, DAST, SCA, or CSPM tooling (e.g., Snyk, Checkmarx, Semgrep, Wiz)
• Strong working knowledge of CI/CD pipelines (e.g., GitHub Actions, Jenkins, GitLab CI) and the ability to write and maintain pipeline integrations
• Experience with container security (Docker, Kubernetes) and API security patterns (REST, GraphQL)
• Demonstrated ability to communicate technical risk to non-security engineers in a way that drives action, not anxiety
• Arcadia is headquartered in Washington, DC, and open to fully remote candidates
• Please note that we are unable to offer visa sponsorship for this position at this time
• Experience standing up or maturing a Security Champions program
• Familiarity with cloud-native AWS security services (GuardDuty, Security Hub, IAM Access Analyzer)
• Exposure to threat modeling frameworks (STRIDE, PASTA, or lightweight equivalents)
• Relevant certifications (OSCP, GWAPT, CSSLP) — valued but not required