- Senior
- Ufficio in Tysons
Overview:
About M.C. Dean
M.C. Dean is Building Intelligence. We design, build, operate, and maintain cyber-physical solutions for the nation’s most mission-critical facilities, secure environments, complex infrastructure, and global enterprises. With over 7,000 employees, our capabilities span electrical, electronic security, telecommunications, life safety, automation and controls, audiovisual, and IT systems. Headquarters in Tysons, Virginia, M.C. Dean delivers resilient, secure, and innovative power and technology solutions through engineering expertise and smart systems integration.
Why Join Us?
Our people are passionate about engineering innovation that improves lives and drives impactful change. Guided by our core values—agility, expertise, and trust—we foster a collaborative and forward-thinking work environment. At M.C. Dean, we are committed to building the next generation of technical leaders in electrical, engineering, and cybersecurity industries.
We rely on IT infrastructure and applications to support critical business functions and drive value to the customers. The successful candidate will join a dynamic multidiscipline team responsible for design, implementation, integration, and support of the enterprise IT infrastructure, which includes secure cloud-hosted and on-premises environments.
Responsibilities:As part of the team, the Senior Systems Engineer's responsibilities will include (but will not be limited to) the following:
- Development of detailed technical and performance specifications for mission-critical information technology solutions based on business needs, operational requirements, and constraints of diverse internal and external stakeholders.
- Researching available technology options and their respective functional, performance, security, and interoperability characteristics; test and evaluate technology components;
- Producing detailed system design, including network and systems infrastructure, application hosting, cloud services, and related components, integration with system monitoring and management, as well as cybersecurity capabilities; work closely with System Architect and other senior members of the technical team to drive best practices across the entirety of the enterprise IT platform;
- System implementation, configuration, including extensive use of automation and Infrastructure as Code (IaC), of key solution components and associated cybersecurity controls, network infrastructure, application software, database instances, and other components;
- Plan, evaluate and execute capacity optimization, updates, upgrades and other lifecycle activities associated with the solution; troubleshoot common infrastructure and application problems; provide escalation support for service availability and performance issues;
- Create and maintain detailed and accurate system documentation, including design and configuration plans, design diagrams, task-oriented procedures, operations and maintenance plans, etc.
Specific qualification requirements for the position include the following:
- Cloud Platforms & Orchestration: Extensive experience deploying and managing workloads on Amazon Web Services (AWS) using CloudFormation, Terraform, and Ansible for Infrastructure as Code (IaC). Proficient in Kubernetes for container orchestration across hybrid environments, including RHEL-based clusters.
- Operating Systems & Automation: Deep expertise in Red Hat Enterprise Linux (RHEL) systems engineering, including secure configuration, system hardening, and lifecycle management. Skilled in Ansible Automation Platform for configuration management and orchestration across RHEL and cloud-native environments.
- Monitoring & Observability: Integrated monitoring solutions using Nagios, AWS CloudWatch, Splunk to ensure system health, performance, and security compliance across cloud and on-premises infrastructure.
- DevOps & CI/CD Tooling: Hands-on experience with Git, Terraform, Ansible, and Jira for version control, automation, and agile delivery. Strong background in containerization using Kubernetes and managing CI/CD pipelines for scalable deployments.
- Security & Identity Management: Advanced knowledge of secure authentication and access control mechanisms, including Active Directory, Entra ID, Group Policy Objects (GPOs), and conditional access policies. Experience implementing Virtual Desktop Infrastructure (VDI) and secure application delivery frameworks.
- Cloud Services & Architecture: Proficient in designing and supporting AWS environments, including compute, storage, networking, and security services. Skilled in cloud-native architecture and hybrid cloud integration strategies.
Experience & Expertise:
5+ years of progressive experience in systems engineering, cloud infrastructure implementation, and enterprise support functions. Proven ability to deliver secure, scalable, and automated solutions in complex environments.
- Advanced knowledge of secure configuration benchmarks and hands-on experience in system hardening;
- Thorough understanding of network infrastructure, concepts of operation, and protocols such as TCP/IP, DNS, DHCP, SNMP, Syslog, etc.
- Knowledge of zero trust architecture (e.g., Zscaler) implementation, as well as working experience with network routing, switching, and firewall configuration is a plus
- Working knowledge of endpoint security (e.g., Defender, Trend Micro), SIEM (e.g., Splunk, Sentinel), vulnerability scanning (e.g., Tenable Nessus/Security Center), and other systems and security management tools
- Demonstrated time management and organization skills while working in a fast-paced, multidiscipline team environment;
- Strong analytical and problem-solving skills;
- Strong communication (oral and written) skills;
- Proficiency with workflow and lifecycle management systems (e.g. Atlassian Jira)
Education and Certification:
- Education:
- Bachelor’s degree in computer science, Information Technology, or a Related Engineering Discipline
- Certification: Must be obtained within 6 months
- AWS Certified Solution Architect
- Linux + / RHCSA / RHCSE
- Security +
Abilities:
- Exposure to computer screens for an extended period of time.
- Sitting for extended periods of time.
- Reach by extending hands or arms in any direction.
- Have finger dexterity in order to manipulate objects with fingers rather than whole hands or arms, for example, using a keyboard.
- Listen to and understand information and ideas presented through spoken words and sentences.
- Communicate information and ideas in speaking so others will understand.
- Read and understand information and ideas presented in writing.
- Apply general rules to specific problems to produce answers that make sense.
- Identify and understand the speech of another person.
