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Application Engineer 3

RealmOne
parental leave, paid time off, 401(k)
United States, Maryland, Columbia
6950 Columbia Gateway Drive (Show on map)
Mar 17, 2026
Job Brief

Linux, AWS, Ansible or Salt.

Job Description

RealmOne was built on the principle that people matter first and foremost. We believe in providing a strong work/life balance by investing in our employees and encouraging professional and personal growth. We do this by offering exceptional benefits, flexible schedules, and the tools necessary to achieve success through paid training, mentoring, and the opportunity to work alongside top-notch industry professionals.

We are searching for talented individuals who provide intelligence, engineering, and mission management expertise for the Government. This program will maximize the effectiveness and efficiency of our country's most important missions both at home and abroad. If you are ready to support a high-performing team that truly makes a difference, then come join us!

Job Description:

We are seeking a skilled and motivated Application Engineer with hands-on experience in Linux/Windows environments, data analytics, and KG tool integration. The ideal candidate will have a strong background in Java and Python development, system integration, and troubleshooting within complex software ecosystems.

This role requires proactive problem-solving skills, the ability to collaborate across technical teams, and a commitment to delivering robust data-driven solutions.

The Level 3 Application Engineer shall possess the following capabilities:

Required Qualifications:

  • Perform Linux server system administration functions.
  • Stand up, configure, and maintain Linux servers.
  • Monitoring and patching/upgrades to Linux servers and AWS instances.
  • Assist and incorporate security compliance controls as applicable.
  • Support documentation of non-applicable controls.
  • Assist with installation of new or replacement hardware or software.
  • Configure and integrate hardware or software with existing networked infrastructure.
  • Assist with decommission and/or removal of obsolete, excess, or replaced hardware.
  • Document inventory changes.
  • Proficient with Linux.
  • Minimum of 3 years Linux server administration experience (within the last 3 years).
  • Proficient with AWS. Minimum of 1 year of AWS experience (within the last year).
  • Experience with either Ansible or Salt.
  • Experience with patching and upgrading Linux servers and AWS instances.

Qualifications:

  • All experience and education will be in a technical field directly related to the labor category being proposed and all diplomas, GED certificates, and degrees will be from accredited institutions.
  • Ten (10) years minimum experience and a High School Diploma/GED. Eight (8) years minimum experience and an associate's degree. Six (6) years minimum experience and a Bachelor's Degree. Four (4) years minimum experience and a Master's Degree. Four (4) years minimum experience and a Doctorate's Degree.

Certifications Required:

  • IAT Level II Certification.

Position requires active Security Clearance with appropriate Polygraph

Pay Range: 141,000-188,000

The RealmOne pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Our approach to crafting offers considers various factors to establish an equitable and competitive compensation package. These considerations include, but are not limited to, the extent and intricacy of the role's responsibilities, the candidate's educational background, their work experience, and the specific competencies crucial for success in the role.

RealmOne Benefits:

  • Healthcare Coverage + Insurance: Medical: Three (3) rich healthcare options through CareFirst with 100% or majority company-paid premiums. Tax-advantaged health savings account available with generous employer contribution. Dental + Vision: 100% employer-paid for employees and family with buy-up option available.
  • Retirement + Savings: 401K - 10% TOTAL CONTRIBUTION - 5% safe harbor - 5% annual profit share. Immediate vested, no match required!
  • Paid Time Off + More: 4 weeks starting PTO - 11 federal holidays + 2 floating holidays - Paid hours for company-required training.
  • Career Growth + Development: Access to FREE 24/7 learning via Udemy - Opportunities to participate in tech councils, industry initiatives, etc. - $7,500 annual Educational & Professional Development Assistance.
  • MORE BENEFITS...FOR EVERY LIFESTYLE! - Paid parental leave - Adoption assistance - Annual swag drops - Flexible work schedules - -Generous referral bonus program - Employee appreciation + family-friendly corporate events ...and much more.

ABOUT US

  • RealmOne is a mid-sized science and technology company dedicated to solving our customers' toughest mission challenges.
  • Headquartered in Columbia, MD., RealmOne supplies advanced cybersecurity, data science and software engineering services and products to customers in the Government and commercial sectors.
  • RealmOne delivers encompassing mission assurance and critical systems support to government customers across various U.S. locations to include Colorado, Georgia, Hawaii, Texas, Utah, and Virginia.
  • RealmOne has earned numerous awards, including being named a Top Workplace by the Baltimore Sun. With more than 30+ active contracts, 12 of which are prime, RealmOne stands as a premier innovator supporting the Government and Department of Defense, with team members located nationwide.

Disclaimer: Benefits packages offered by RealmOne are subject to variation and may differ based on work location, clearance level, and other eligibility criteria. Specific eligibility, availability, and scope of benefits are not guaranteed, may differ from those generally described, and remain subject to modification at the sole discretion of the company.


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