Application Security Engineer

Job Description

Veilant is looking for an Application Security Engineer to join our Info Sec team and help validate, secure, and continuously improve software developed by internal and partner engineering teams.

This role is ideal for someone who combines a software engineering foundation with an attacker mindset. You will review major and minor software releases before deployment, identify and validate vulnerabilities, create proof‑of‑concept demonstrations where appropriate, and provide practical remediation guidance that developers can act on.

You will not simply file security tickets and move on. You will work closely with engineering teams to understand application architecture, business logic, user workflows, data sensitivity, and production environments so that your findings are accurate, contextualized, and useful.

You will work collaboratively across Veilant’s software, Dev Sec Ops , and infrastructure teams.

• Audit software releases across major and minor cycles to intercept and remediate security flaws before deployment.
• Analyze source code to identify, isolate, validate, and contextualize vulnerabilities in complex application codebases.
• Build safe proof‑of‑concept examples to demonstrate exploitation paths and verify the real‑world impact of discovered risks.
• Contextualize findings based on application business logic, user workflows, data sensitivity, and production use cases.
• Author clear remediation guidance and partner with development teams to implement effective patches, controls, or architectural mitigations.
• Intercept and analyze application‑layer network traffic using tools such as Burp Suite or similar intercepting proxies to inspect encrypted payloads, API calls, and authentication flows.
• Assess and help secure core architectures across REST APIs, SQL databases, PostgreSQL, JWT/OAuth, identity providers, and token‑based authentication mechanisms.
• Perform threat modeling for web applications based on use cases, data flows, user roles, trust boundaries, and production environments.
• Improve Dev Sec Ops  pipelines by integrating, tuning, and operationalizing SAST, DAST, SCA, IaC scanning, secrets detection, and container security tooling.
• Support container runtime security efforts using monitoring and runtime protection tools such as Falco, Neu Vector, or similar technologies.
• Create standardized security reporting that translates technical findings into clear risk narratives for both engineering teams and executive stakeholders.

• Building a repeatable App Sec review process for major and minor software releases, helping engineering teams identify and resolve security issues before deployment.
• Integrating and improving SAST, DAST, and SCA checks in CI/CD pipelines so that security testing becomes a reliable part of the development lifecycle rather than a late‑stage blocker.
• Establishing threat modeling practices for web applications using common frameworks and applying them to Veilant’s Angular front‑end, Java Spring Boot back‑end, REST APIs, SQL databases, and authentication flows.
• Partnering with engineering and software teams to improve secure coding practices through practical feedback, remediation guidance, and collaborative reviews.
• Implementing best practices in container runtime security
  , including visibility, monitoring, and runtime protections for containerized workloads.
• Writing standardized security reports that clearly communicate risk, impact, and remediation steps for both executive‑level stakeholders and engineering teams.

• Ability to obtain a Security Clearance.
• 2+ years of software development experience in Java.
• Hands‑on experience reviewing or securing applications built with Java Spring Boot, Angular, REST APIs, SQL databases, and PostgreSQL.
• Working knowledge of authentication and authorization technologies, including JWT, OAuth, identity providers, Entra, Keycloak, and token‑based access models.
• Experience intercepting, decrypting, manipulating, and analyzing web or application network traffic.
• Demonstrated ability to find, validate, and explain vulnerabilities in a real codebase.
• Familiarity with CI/CD tools…