Senior Application Security Engineer

***Before applying please read the following: *
*This role sits in Plano, TX 5X/week. Applicants must be within a commutable distance or willing to relocate for this opportunity.
*W2 only, unable to do C2C for this engagement*
*Senior** Application Security Engineer*
* Dallas, TX (Onsite - Plano area)*
* Contract-to-Hire | 6+ Months*
We're partnering with a leading organization building a next-generation platform powered by AI-driven development. They're looking for a Senior Application Security Engineer to help integrate security directly into modern engineering workflows - enabling fast, secure, and scalable software delivery.
This is a high-impact role working at the intersection of application security, platform engineering, and AI-assisted development.
MUST HAVE:
* *Strong Application Security experience *
* Real-world threat modeling (not just frameworks like STRIDE)

* *Deep experience with CI/CD pipelines + security integration*
* *Hands-on experience with AI-assisted development *
* Tools like GitHub Copilot, AI agents, code generation

* *Ability to: *
* Review code and identify security risks
* Explain risk/impact to engineering teams

* *Experience integrating security scanning tools into pipelines*
* *Knowledge of risk-based security controls* (security gates)
What You'll Do
* Embed security into AI-assisted development workflows and CI/CD pipelines
* Partner closely with platform, data, and application engineering teams
* Perform modern, hands-on threat modeling (beyond traditional frameworks)
* Review code (PRs) and provide actionable security guidance
* Implement and automate security scanning and vulnerability detection
* Design and enforce risk-based security controls within pipelines
* Contribute to architecture discussions, sprint planning, and security reviews
* Evaluate and integrate security tools into development and AI workflows
What You Bring
* Strong experience in application security and threat modeling
* Hands-on work with CI/CD pipelines and security integration
* Experience with AI-assisted development tools (e.g., GitHub Copilot, code generation tools)
* Ability to review code and communicate security risks clearly
* Experience integrating security scanning tools into pipelines
* Understanding of risk-based security controls and secure development practices
Nice to Have
* Experience securing AI/ML or data pipelines
* Background in platform engineering or backend systems
* Strong collaboration skills with a developer-first mindset
Why This Role?
* Work at the forefront of AI + security innovation
* Join a brand-new, growing team with strong investment
* Influence how security is embedded into modern engineering practices


*Job Type & Location*This is a Contract to Hire position based out of Dallas, TX.
*Pay and Benefits*The pay range for this position is $65.00 - $75.00/hr.
Eligibility requirements apply to some benefits and may depend on your job
classification and length of employment. Benefits are subject to change and may be
subject to specific elections, plan, or program terms. If eligible, the benefits
available for this temporary role may include the following:

* Medical, dental & vision


* Critical Illness, Accident, and Hospital


* 401(k) Retirement Plan - Pre-tax and Roth post-tax contributions available


* Life Insurance (Voluntary Life & AD&D for the employee and dependents)


* Short and long-term disability


* Health Spending Account (HSA)


* Transportation benefits


* Employee Assistance Program


* Time Off/Leave (PTO, Vacation or Sick Leave)
*Workplace Type*This is a fully onsite position in Dallas,TX.
*Application Deadline*This position is anticipated to close on Jun 19, 2026.

About TEKsystems


We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company.

The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

About TEKsystems and TEKsystems Global Services


We're a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. We're a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. We're strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. We're building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at TEKsystems.com.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

*San Francisco Fair Chance Ordinance:* Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

*Massachusetts Lie Detector:* It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

*Use of Artificial Intelligence (AI):* We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.