Cybersecurity Jobs in Tysons, VA

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Application Security Engineer

Veilant Tysons, VA

Tysons, VA

Today

$115k - $145k/yr Full time Application Security Code Security Cybersecurity Tools

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Job Description

Veilant is seeking an Application Security Engineer to validate, secure, and continuously improve software developed by internal and partner engineering teams.

Responsibilities

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 real-world impact.
Contextualize findings using application business logic, user workflows, data sensitivity, and production use cases.
Author remediation guidance and collaborate with development teams on patches, controls, or architectural mitigations.
Intercept and analyze application-layer network traffic using tools such as Burp Suite or similar intercepting proxies.
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 DevSecOps 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, NeuVector, or similar technologies.
Create standardized security reporting that translates technical findings into clear risk narratives for engineering teams and executive stakeholders.
Build a repeatable AppSec review process for major and minor software releases to help teams identify and resolve security issues before deployment.
Integrate and improve SAST, DAST, and SCA checks in CI/CD pipelines so security testing is part of the development lifecycle.
Establish threat modeling practices using common frameworks and apply them to Veilant’s Angular front-end, Java Spring Boot back-end, REST APIs, SQL databases, and authentication flows.
Partner with engineering and software teams to strengthen secure coding practices through collaborative reviews and practical remediation guidance.
Implement container runtime security best practices, including visibility, monitoring, and runtime protections for containerized workloads.
Write standardized security reports that communicate risk, impact, and remediation steps for both executive-level stakeholders and engineering teams.

Requirements

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 such as GitLab CI, Azure DevOps, or GitHub Actions.
Experience with containerized environments and orchestration tools such as Kubernetes.
Exposure to infrastructure-as-code and container scanning tools such as Trivy, Kubesec, or similar technologies.
Understanding of cloud hosting environments such as Azure or AWS.
Familiarity with secrets management tools such as GitLab Secrets Manager, AWS KMS, Azure Key Vault, or Ansible Vault.
Experience with automated application security testing, including SAST, DAST, and SCA.
Familiarity with runtime security and monitoring tools for containers, such as Falco, NeuVector, or similar platforms.
Hands-on web security testing experience using Burp Suite or comparable tooling.
Strong written communication skills, including the ability to write reports for both technical and non-technical audiences.
OSWE, OSCP, and/or GXPN certifications are highly desirable.

Technologies

Java, Java Spring Boot, Angular
REST APIs, SQL databases, PostgreSQL
JWT, OAuth, Entra, Keycloak
Burp Suite
SAST, DAST, SCA, IaC scanning, secrets detection, container security tooling
Falco, NeuVector
CI/CD: GitLab CI, Azure DevOps, GitHub Actions
Kubernetes
Trivy, Kubesec
Azure, AWS
GitLab Secrets Manager, AWS KMS, Azure Key Vault, Ansible Vault
OSWE, OSCP, GXPN

Benefits

Flexible PTO + holidays
Generous 401k match benefit up to 10%, with an automatic 3% safe harbor contribution and additional matching based on employee contributions
Medical (HSA & PPO Plans Available), dental, vision, disability, and life insurance
Employer Contribution to Health Savings Account (HSA)
Learning & Development opportunities
Professional coaching services
Get the technology you want to do your job
Free daily snacks & drinks

Compensation and Work Location

Salary range: USD 115,000 - 145,000 per year
Location: Tysons, VA (onsite)

Physical Requirements

Must be able to remain in a stationary position 50% of the time; occasionally move about inside the office
Constantly work with computers and other information technology equipment
Ability to communicate information and ideas in a classroom style format; may stand at a podium for long periods of time

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