**ManTech** is seeking a skilled **Senior Cloud Systems Administrator** with expertise in Amazon Web Services (AWS) to join our technology-based program supporting a key Government customer in **Herndon, VA.** The ideal candidate will be responsible for managing our customer's Cloud infrastructure in support of this customer's mission, ensuring the smooth operation of all systems within the Cloud environment, and leveraging AWS technologies to optimize performance and scalability. **Duties, Tasks & Responsibilities:** + Manage and maintain the customer's cloud infrastructure, including EC2 Instances, networks, and cloud services Deploy, configure, and troubleshoot AWS services such as EC2, S3, RDS, and VPCs + Monitor system performance and conduct regular security scans and audits to ensure data integrity and protection + Collaborate with internal teams to identify technical requirements and implement solutions that meet business needs + Provide technical support and guidance to end-users, resolving issues in a timely manner Implement best practices for backup, disaster recovery, and system redundancy + Stay up-to-date with industry trends and advancements in cloud computing and IT systems administration **Basic Qualifications:** + Bachelor's or Master’s Degree in a relevant Information Technology, Computer Science, Systems Engineer field or similar + 6+ years relevant Information Technology experience + Proven experience as a Systems Administrator, with a focus on AWS cloud technologies + Strong understanding of systems administration concepts, protocols, and security best practices + Experience in running security scans using a variety of tools, analyzing the findings, and mitigating those finding associated with the Cloud environment and coordinating with the team for resolution of the remainder + Excellent problem-solving skills and attention to detail + Ability to work independently and collaboratively in a fast-paced environment + Excellent communication skills, both verbal and written **Preferred Qualifications:** + Experience with a wide variety of Cloud technologies and solutions architectures is a plus (AWS, Google, Azure, Oracle etc) + Broad understanding of technical principles, theories and concepts in the Systems Administrator field + Knowledge of state-of-the-art systems engineering principles and cloud design concepts + Proficiency in scripting languages such as Python, PowerShell, or Bash is a plus + SecDevOps experience with automation experience is preferred AWS certifications (e.g., AWS Certified SysOps Administrator, AWS Certified Solutions Architect) preferred but not required ​​​​ **Security Clearance Required** + An active TS/SCI with Polygraph. **Physical Requirements:** + Use hands to operate a computer and other office productivity machinery, such as a calculator, copy machine, and computer printer. + Occasionally move about inside the office to access file cabinets, office machinery, etc. + Constantly position self to maintain computers in the lab, including under desks and in server closets. ManTech International Corporation, as well as its subsidiaries proactively fulfills its role as an equal opportunity employer. We do not discriminate against any employee or applicant for employment. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran. If you are a qualified individual with a disability and require a reasonable accommodation to apply for a position with ManTech through its online applicant system, please email us at careers@mantech.com and provide your name and contact information.