Senior Linux Application Engineer (remote)

at General Dynamics Information Technology in Bangor, Maine, United States

Job Description

Type of Requisition: Regular

Clearance Level Must Be Able to Obtain: None

Public Trust/Other Required: NACLC (T3)

Job Family: Systems Engineering

We are GDIT, one of the largest IT and mission services providers to the government. We offer our customers the power of choice through a vast cloud ecosystem.

GDIT is your place. You make it your own by bringing your ideas and unique perspective to our culture. By owning your opportunity at GDIT, you are helping us ensure today is safe and tomorrow is smarter. We are seeking a Senior Linux Application Engineer to support the mission of the National Institute of Allergy and Infectious Diseases (NIAID) in Rockville, Md.

You will work closely with six other innovative and savvy people to support and deploy scientific and business applications and expand application hosting capabilities with new tools and technologies.. You’ll help automate and streamline our operations and processes, and further the adoption of DevOps best practices. We’ll want your opinion on operational processes, automated deployments, technology and tools, and more. A focus on always-up, always-available applications is a plus.

In this role, a typical day will include the following:

+ Configuring and supporting the day-to-day application management tasks, such as troubleshooting issues, deploying changes, installing and configuring new custom and third-party applications, remediating application security vulnerabilities, and optimizing performance settings.

+ Monitoring the health of applications and responding to alerts, such as service down, failed backup, slow response time, or full file systems.

+ Working closely with application owners and software engineers to identify requirements, plan, and implement projects, such as installing new custom applications with web services, database components, data hosting, and load balancing.

+ Automating day-to-day processes and creating self-service capabilities to empower software developers and application owners to perform routine maintenance tasks such as renewing TLS certificates, changing service account passwords, and rebooting application servers.

+ Researching and recommending innovative approaches for application hosting to modernize our customers hosting environment and speed up time to deliver.

+ Documenting day-to-day administrative processes and configuration information about our customers applications.

After hours and weekend work may occasionally be required for pre-planned maintenance or for troubleshooting service-impacting outages.


+ BA/BS or equivalent and eight years related experience or a MS and six years experience.

+ Minimum of five years’ hands-on experience with Linux/Unix variants, especially RedHat/RHEL version 6.x/7.x and its derivatives, including best practices for deploying LAMP (Linux, Apache, MySQL, PHP) applications and supporting variants of LAMP such as Tomcat, Java, Python, MariaDB, and PostgreSQL.

+ Expert knowledge of Red Hat Enterprise Linux 6.x & 7.x to include troubleshooting complex issues, configuration best practices, security hardening, and automated provisioning.

+ Experience in managing hardware load balanced applications

+ Experience in creating, applying and troubleshooting TLS certificates for web servers such as Tomcat, Apache, or nginx

+ Experience with Puppet configuration management system and writing Puppet manifests or equivalent experience with Ansible or Chef

+ Experience with content management and learning frameworks such as Drupal 7.x & 8.x or Moodle on Red Hat Enterprise Linux

+ Experience installing, configuring, maintaining, and troubleshooting MySQL, MariaDB, and Postgres databases

+ Experience designing and implementing technologies following NIST standards, such as SP 800-53, SP 800-190, and SP 500-291.

+ Strong scripting experience with Python, Bash, Java, or Ruby

+ Experience analyzing solutions components, understanding systems integration challenges, and identifying technology gaps in current components that must be resolved to reach future performance targets and functionality requirements

+ Ability to clearly present ideas to both technical and non-technical users and staff to further the adoption of DevOps.

+ Ability to obtain and maintain a Public Trust security clearance level

Preferred Qualifications:

+ Experience with access and authentication technologies, such as LDAP, SimpleSAML, or Kerberos

+ Knowledge of layer 3 networking technologies, such as switching and routing

+ Knowledge of enterprise storage protocols, such as NFS v4, CIFS, and SMB

+ Experience configuring CI/CD pipelines using GoCD, Jenkins, or Azure DevOps Pipelines

+ Experience breaking down monolithic applications into microservices and Docker containers


+ Full-flex work week

+ 401K with company match

+ Internal mobility team dedicated to helping you own your career

+ Collaborative teams of highly motivated critical thinkers and innovators

+ Ability to make a real impact on the world around you

This position requires being fully vaccinated against COVID-19 by January 18, 2022 or the start date, if after January 18. Individuals who work in or reside in Texas or Montana or work outside of the United States may be excluded from this requirement.

We are GDIT. The people supporting some of the most complex government, defense, and intelligence projects across the country. We deliver. Bringing the expertise needed to understand and advance critical missions. We transform. Shifting the ways clients invest in, integrate, and innovate technology solutions. We ensure today is safe and tomorrow is smarter. We are there. On the ground, beside our clients, in the lab, and everywhere in between. Offering the technology transformations, strategy, and mission services needed to get the job done.

GDIT is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status, or any other protected class.

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Job Posting: JC195529049

Posted On: Oct 22, 2021

Updated On: Dec 04, 2021