Senior Information Systems Security Officer (ISSO)

Senior Information Systems Security Officer (ISSO)

Interested in working in an innovative, collaborative environment with motivated, social people? At Arc Aspicio, you can join a leading consulting firm that specializes in human capital, data analytics, management, and strategy professional services to deliver compelling solutions. Consultants join our practice focused on mission-critical projects and quickly learn to contribute to and grow our company across multiple projects. We invest in hiring, mentoring, and training smart, diverse, and self-driven professionals interested in all aspects of the company and our homeland security and Government clients. We are looking for people who are willing to share ideas and work as part of a collaborative, innovative team.

The Senior Information Systems Security Officer (ISSO) supports complex Federal technology programs and oversees, manages, tracks, and reports on Government program-level information security to protect systems, facilities, and infrastructure. They have at least 5 years of ISSO experience on complex mission-critical programs and the ability to closely collaborate with Government leaders, facility managers, software development teams, and Government security offices.

Responsibilities

• Serve as the primary security point of contact for assigned federal information systems
• Develop, implement, and maintain System Security Plans (SSPs) in accordance with NIST SP 800‑53, RMF, and agency‑specific requirements
• Ensure continuous compliance with FISMA, FedRAMP, and organizational security policies
• Support system Authorization to Operate (ATO) activities, including initial authorizations, renewals, and continuous monitoring
• Conduct security control assessments and analyze system risks to confidentiality, integrity, and availability
• Identify security vulnerabilities and manage remediation efforts through Plans of Action and Milestones (POA&Ms)
• Collaborate with system owners and engineers to implement risk‑based security controls
• Provide security guidance during system development, modernization, and operational phases
• Execute and maintain continuous monitoring programs, including vulnerability scanning, log review, and control validation
• Review and analyze scan results (e.g., Nessus, Tenable) and track remediation progress
• Monitor compliance artifacts and evidence to support audits, inspections, and assessments
• Support cybersecurity incident response activities, including investigation, documentation, and reporting
• Ensure timely reporting of incidents in accordance with federal and agency procedures
• Work with ISSMs, program managers, and federal customers
• Collaborate with our clients to solve tough problems, delivering outstanding client service, and achieving mission results
• Apply excellent consulting, business analysis, and communications skills to quickly identify problems, analyze challenges, and recommend solutions to our team and our clients

Required Qualifications

• At least 5 years of direct ISSO experience in overseeing and interacting within a portfolio of security assets and systems at a Government-program level that involves multiple systems and facilities
• Direct experience with senior clients and stakeholder engagement and delivering work products for clients in a complex environment
• Proven to be flexible and thrive in a dynamic, ambiguous, and complex work environment and manage multiple tasks and projects simultaneously
• Outstanding written and oral communication and collaboration skills and strong leadership potential
• Ability to collaborate and work effectively remotely and in-person
• Technologically savvy, especially with Microsoft products and use of collaboration tools like SharePoint
• Desire to join a consulting firm and learn business concepts; loves to collaborate and reach out to get involved in company events, offerings, and special projects
• Ability to work in the Washington, DC metro area and travel to different locations
• Clearance: US Citizenship only (no dual citizenship)
• Education: Bachelor's degree
• Critical Skills: Executive presence, entrepreneurial spirit, strong work ethic, collaborative mind-set, excellent problem-solving skills, and interest in working in a consulting firm. Interest in working on assignments outside of one project is strongly desired

Preferred Qualifications:

• Certifications : CISSP
• Experience working with CISA, CISOs, ISSMs, and senior leadership

Applying to Arc Aspicio: Our recruiting process is very competitive. Therefore, we ask that you submit a brief, tailored cover letter to tell us what you are looking for in a company and why you would be a great fit for a consulting firm in this role. Cover letters are essential so we can understand your interest and experience relevant to consulting. The use of AI tools or AI-generated content is strictly prohibited throughout the application process. Applicants are expected to rely solely on their own knowledge, experience, judgment, and work when completing application materials and participating in any stage of the hiring process. Any applicant found to have used AI assistance will be removed from consideration for the position. Total Rewards: Salary is just one element of our Total Rewards which includes compensation, benefits, bonuses, professional development, and other career opportunities. The projected salary range for this position is $115,000 - $135,000. This range takes into account the wide variety of factors that are considered in making compensation decisions, including but not limited to: skill sets and expertise, experience, education, training, certifications, contract and client requirements (if applicable), and other business and organizational needs. At Arc Aspicio, it is not typical for an individual to be hired at or near the top of the range for their role, and compensation decisions are dependent on the facts and circumstances of each case.

About Arc Aspicio : Arc Aspicio enhances the future of our nation by creating bold ideas and bringing them to life. A consulting and solutions company, Arc Aspicio solves problems by applying our integrated capabilities in strategy, design, data, human capital, behavioral science, and technology. The company passionately pursues our vision to be the hub of creativity where people take action to change the world. Employees collaborate with clients and partners to create solutions using a human-centered approach. Our goal is to attract people who love to collaborate and work in a team-oriented environment. Our culture empowers our employees to learn, share knowledge, be leaders in everything they do, and develop strong relationships with their clients and colleagues. Our positions are based in the DC metro area and require employees to live in DC, VA, and MD within commuting distance of our client sites and DC office. Commitment to Respect, Collaboration, and Innovation: Arc Aspicio is dedicated to fostering a workplace where individuals from all backgrounds can contribute to the company and serve our clients. As a growing professional services solutions firm focused on solving large, complex problems, we welcome applications from candidates with a variety of experience, skills, and knowledge. All employment is decided on the basis of qualifications, merit, and business need. Equal Opportunity Employer/M/F/D/V