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ARCO Cybersecurity Intern/Co-op in St. Louis - Brentwood, Missouri


Are you an out of the box thinker? Are you passionate about solving business problems with the latest technology? If the answer is, “Yes!” then we have an exciting, internship opportunity for you. Who are we? We are ARCO, a Family of Construction Companies.

We are looking for a Cybersecurity Intern for our St. Louis office to work with our Technology Security team. As a Cyber Security intern, you will research email threats, learn how to analyze logs to identify threats, and work closely with our infrastructure team to remediate issues detected within our environment. This is a great opportunity for an intern that is energetic, likes working closely with others, and has a desire to help protect the ARCO organization.


The internship program in ARCO’s Technology Department is designed to provide hands-on on enterprise environments in a practical setting. Students get an opportunity to gain insight and meaningful experience and develop additional soft skills necessary while working at ARCO. Work part time during the school year while attending college classes. Full time working hours available in the summer.

We are dedicated to the well-being of our associates and are proud to be consistently recognized as a Best Place to Work.

  • Competitive hourly rate

  • Flexible hours to accommodate your class schedule

  • Medical, dental, and vision insurance coverage when you Intern or Co-op with us for at least 3 months full time

  • Company sponsored lunches, and events

  • Stocked kitchen with coffee, soda, and snacks

At ARCO, our first core value is to treat people fairly and do the right thing. We are committed to building and sustaining a culture that supports diversity and inclusion. We are proud to be an equal opportunity employer, and all qualified applicants will receive consideration for employment.

From recruiting, training, and hiring practices to selecting our subcontractors, we understand that diversity of all those involved in the construction process enhances our ability to deliver the best solutions to our customers. We hire the best and the brightest from across the country – constructing a team of experts in architecture, design, engineering, project management, and business services.


  • Promote and maintain the Security Awareness Training program

  • Responds to cyber incidents, performing routine analysis using security tools

  • Review tickets and emails submitted by other employees, that appear suspicious, to determine if they are malicious.

  • Utilize various tools and systems’ dashboard to generate reports and analyze the information to further remediate and help improving the security posture.

  • Provides general support to aide in the completion of department tasks, projects, and programs

  • Participate in planning and deploying Security Incident Response training exercises

  • maintaining confidentiality, integrity, and availability of information, applications, infrastructure, and cloud environments.

  • Assisting in the management of systems that support information security including virus detection systems, endpoint detection and response, data loss prevention, network anomaly detection, cloud access security brokers, security information event management, and other security systems.


  • Candidates must be currently enrolled in a Cybersecurity program

  • Must be dependable, self-motivated, and detail-oriented and have excellent organizational and proofreading skills.

  • Must possess the ability to work and communicate effectively with other company personnel.

  • Proficiency in the Office 365 suite of products (i.e., Outlook, Word, Excel, PowerPoint) preferred.

  • Must be able to handle multiple priorities and operate efficiently and effectively.

  • Must have an interest in cybersecurity or Information Security and be highly ethical and trustworthy


With 38 offices in major cities across the United States, we are one of the most dynamic and fastest-growing construction companies in the nation. As a leader in the design/build industry ranking #3 on the ENR's Top 100 Design-Build Companies list, we know that the best work requires the best talent – that’s why we are always looking for the best and brightest to join our team of experts.

At ARCO, we are committed to taking care of our greatest asset – our team. From Project Managers to Interns and Co-ops, ARCO is dedicated to creating a workplace in which associates feel valued and empowered to succeed. From paid sabbaticals to premier compensation and everything in-between, we pride ourselves in making ARCO, not only a great place to work but the best place to build a career. From the moment an associate begins his or her career at ARCO, the opportunity for success is limitless.

ARCO does not accept unsolicited resumes from individual recruiters or third-party recruiting agencies without pre-approval from ARCO’s Human Resource team. Pre-approval is required before any external candidate can be submitted. ARCO will not be responsible for fees related to unsolicited resumes and for candidates who are sent directly to our hiring managers.

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