Application Security Engineer

As a Lead Cybersecurity Engineer, you will be responsible for understanding and contributing to Security by Design practices, secure application software development lifecycle practices, security testing and assessment, and the integration of Security with DevOps. This role is responsible for security engineering of the cloud (AWS, Azure) environments and vulnerability management of both Infrastructure as Code (IaC) and application development (SAST / DAST). Engineers will spend their time helping development teams identify and track security risks to remediation while embracing concepts of agile delivery and DevOps.

Typical task breakdown :

• Security Defect Management - Analyzing, validating, communicating, and consulting on security defects identified by both automated and manual sources such as CodeQL, Rapid7 Web Application Security, penetration testing, bug bounty, etc. In other words, our security engineers are partners to software engineers who require accurate information on why a vulnerability exists and what they can do about it.
• Engineering Consulting - Serving as a "best friend" to software engineers, architects, product owners, and leaders, provide contextually-aware guidance to help these groups make good decisions, document those decisions and resulting architectures, and navigate relevant review & approval processes (where necessary) when implementing new features and remediating existing issues.
• Tool Enablement - Enabling and monitoring automated defect detection tooling (CodeQL, Rapid7, etc.) at the repository or application level according to established process.
• Security Test Onboarding & Management - Collecting and communicating required scope and access information for penetration testing and security assurance assessments, as well as handling the output of these assessments via our Defect Management Process.

Interaction with team :

• Accountable for a dedicated set of applications to work directly with development teams. Part of a larger security engineering team that sets standards and ways of working for interacting with development teams.
• Security Engineers will help development teams identify security gaps in their applications and services and assist in coming up with solutions to close those gaps and make services compliant to enterprise security requirements.

Work environment :

Candidate Requirements

Education & Experience Required :

• Bachelor's degree in computer science or a related field with 8+ or more years in information security
• Master's Degree must have 6+ years' experience

Technical Skills

(Required)

• Application security expertise understanding vulnerabilities and remediation solutions (OWASP, CWE / CVE, SANS 25)
• Experience with a wide variety of information security processes and principles, such as :

o Enterprise security architecture

o Threat modeling

o Vulnerability assessment

o Risk analysis

o Defense in depth

o SDLC and product development processes

o Identity and access management

o API security

o SCA / SAST / DAST

• Cloud security experience with MS Azure and / or AWS
• Professional certification (CISSP, CCSP, GWAPT, GWEB, AWS SA / Certified Security, etc.)
• Development experience (Java, Python, .Net, JS, or equivalent)
• Implementation of automation and scripting

(Desired)

• Web services security Desired : Professional information security certification (CISSP, CCSP, CSSLP, GISCP, GWAPT, GWEB etc) ; Strong understanding and experience with information security technologies
• Skills

Cloud, Terraform, Devops, Linux, kubernetes, AWS, bash scripting, jenkins, CI / CD, git

• Top Skills Details

Cloud,Terraform

• Additional Skills & Qualifications

Soft Skills

(Required)

• Excellent written and verbal communications skills; demonstrated ability to communicate highly technical security concepts to non-security audiences
• Ability to coordinate multiple teams in accomplishing process review and improvement
• Experience Level

Intermediate Level

• Job Type & Location

This is a Contract position based out of Chicago, IL.

• Pay and Benefits

The pay range for this position is $60.00 - $80.00 / 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 Chicago,IL.

• Application Deadline

This position is anticipated to close on Nov 18, 2025.

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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.