Application Security Engineer (2026-0248)

Acclaim Technical Services; Reston (VA); On-site; USD 210,000 - 260,000; Full time

Job summary

Acclaim Technical Services (ATS) is seeking an experienced Application Security Engineer with TS/SCI w/ Polygraph in Bethesda, MD to join a cloud-native, centralized platform team delivering end-to-end budget traceability.

The role will integrate security across the SDLC, partnering with developers and cloud engineers to design, build, assess, and sustain secure mission applications, including guidance on secure design, threat modeling, and secure coding practices.

Qualifications

• 8+ years in application security or related field.
• Bachelor's degree in engineering or CS; Master's preferred.
• Experience with secure SDLC and threat modeling.
• Proficient in Python/JavaScript/SQL and secure coding practices.
• Experience with SAST/DAST/SCA and container security.

Responsibilities

• Integrate security throughout the software development lifecycle.
• Collaborate with developers and cloud engineers to design, build, assess and sustain secure mission applications.
• Apply security controls across cloud-native environments and CI/CD pipelines.

Skills

Application security

Secure SDLC

DevSecOps

Cloud security

Threat modeling

Secure design reviews

Code review

SAST/DAST/SCA

Container security

CI/CD security

Education

Bachelor's degree in engineering/CS

Master's degree preferred

Tools

Kubernetes

Docker

REST APIs

CI/CD pipelines

Job description

Application Security Engineer with TS/SCI w/ Polygraph

ATS is currently seeking a highly experienced and motivated Application Security Engineer with TS/SCI w/ Polygraph in Bethesda, MD for an exciting new contract. This role will be part of a team of Data, Cloud, and Security engineers delivering a cloud-native, centralized platform that provides end-to-end budget traceability. The Application Security Engineer will integrate security throughout the software development lifecycle, partnering with developers and cloud engineers to design, build, assess, and sustain secure mission applications.

Required Skills and Qualifications

• Technical expertise and hands‑on experience in application security, secure software development, software engineering, or DevSecOps, with the ability to apply these skills to Oracle Cloud and customer mission challenges.


• Experience integrating security throughout the software development lifecycle, including secure design and architecture reviews, threat modeling, secure code review, security testing, vulnerability remediation, and release authorization support.


• Experience developing or reviewing applications using Python, JavaScript frameworks, SQL, Shell scripting, PL/SQL, and other programming languages, with a strong understanding of common application vulnerabilities and secure coding practices.


• Experience with application security testing tools and processes, including static application security testing (SAST), dynamic application security testing (DAST), software composition analysis (SCA), secrets scanning, and container or infrastructure vulnerability scanning.


• Experience building and securing cloud‑native applications and services using Kubernetes, containers, Docker, REST APIs, and CI/CD pipelines.


• Experience implementing DevSecOps practices, including automated security controls and testing within build and deployment pipelines.


• Experience with cloud-native security services and controls; Oracle Cloud Infrastructure (OCI) experience is desired.


• Knowledge of security frameworks and standard such as NIST RMF, NIST Secure Software Development Framework, OWASP, DISA STIGs, and applicable federal security requirements.


• Experience securing Oracle RDBMS environments, including database access controls, encryption, auditing, and secure handling of sensitive data.


• Ability to assess, prioritize, document, and communicate application and cloud security risks, findings, and remediation recommendations to both technical and non-technical stakeholders.


• Passion for technology, curiosity, and willingness to continuously learn new security tools, techniques, and approaches for solving complex technical challenges.


• Experience working in an Agile framework.

Desired Skills and Qualifications

• Oracle Cloud Infrastructure (OCI) IaaS and/or PaaS certifications are preferred.


• Security certifications such as CISSP, CSSLP, Security+, GIAC, CEH, OSCP, or comparable credentials.


• Experience implementing identity and access management, privileged access controls, secrets management, encryption, logging, monitoring, and incident response capabilities in cloud environments.


• Experience with AI technologies for software development and securing AI‑enabled applications or development workflows.


• Data engineering experience, including securing data validations, business rules, data transformations, and sensitive‑data handling.

Required Credentials and Experience

• 8+ years of relevant experience in application security, software engineering, DevSecOps, cybersecurity, or a related technical discipline.


• Bachelor's Degree in engineering, computer science or related technical discipline. Master's degree preferred.

Salary Range

Salary Range: $210,000 - $260,000

Acclaim Technical Services (ATS), founded in 2000, is a premier provider of tech-enabled solutions and operational services to a broad range of U.S. Federal agencies. As an Employee Stock Ownership Plan (ESOP) company-an uncommon advantage in our sector-we foster a culture of ownership, accountability, and shared success. This commitment to our people shows: ATS is consistently recognized as a top workplace in the DC area and continues to experience strong, strategic growth.

Salary Transparency: There are many factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employee owners value the flexibility at ATS that allows them to balance quality work and their personal lives. We offer competitive compensation, career growth, benefits and learning and development opportunities. Our broad mix of exceptional benefits options is designed to support and protect employees and their families. At ATS, you will be eligible to participate in a comprehensive benefits package such as healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits. Learn more at Employee Resources

EQUAL EMPLOYMENT OPPORTUNITY (EEO) STATEMENT: ATS is committed to a program of equal employment opportunity without regard to race, color, ethnicity, national origin, ancestry, citizenship, sex, pregnancy, marital status, sexual orientation, age, religion/creed, hairstyles and hair textures, handicap/disability, genetic information/history, military/veteran status, or any other characteristic or condition protected by applicable law. We support the employment and advancement in employment of individuals with disabilities and of protected veterans, and we treat qualified individuals without discrimination on the basis of their physical or mental disability or veteran status.