Appian System Administrator - Clearance Required

LMI; Fort Belvoir (VA); On-site; USD 130,000 - 158,000; Full time

Job summary

LMI seeks an experienced Appian System Administrator to sustain and enhance the Army Contract Writing System (ACWS) built on Appian. You will manage environments, deployments, access, and monitoring to ensure reliability across ACWS.

The role requires 5+ years in system administration, familiarity with identity technologies, and an Active Secret clearance or ability to obtain one. US citizenship is required for this position at Fort Belvoir, VA.

Qualifications

• Bachelor's degree or equivalent in IT-related field.
• 5+ years in system administration or enterprise applications.
• Experience deploying and troubleshooting enterprise apps.
• Experience with identity and access technologies.
• Active Secret clearance or ability to obtain.
• US citizenship required.

Responsibilities

• Administer and maintain Appian Platform environments for ACWS development, testing, staging, and production.
• Perform Appian deployments, configuration changes, and environment promotions per procedures.
• Manage Appian users, groups, roles, permissions, and service accounts with security coordination.
• Monitor platform health, performance, logs, services, and integrations; take corrective action.
• Support Appian Cloud configuration and coordinate with hosting or vendors when needed.
• Troubleshoot complex Appian issues with cross-team coordination.
• Support identity integrations (LDAP/AD/SSO/SAML) and certificates.
• Assist in sizing, scaling, and architecture considerations for Appian data.
• Coordinate with DBAs, DevSecOps, cybersecurity, and architects on changes and incidents.
• Contribute to security hardening, patching, and operation documentation.

Skills

System administration

Enterprise app administration

Access controls

Troubleshooting

LDAP/AD/SSO

Security

US citizenship

Education

Bachelor's degree in IT/CS/IS/Engineering

Tools

Appian Platform Administration

Appian Cloud / GovCloud

KDB in-memory engines

Linux/Windows server management

Job description

Overview

LMI is seeking an experienced Appian System Administrator to support Army CPE, ES2, AT&R in the sustainment and enhancement of the Army Contract Writing System (ACWS). ACWS is built on the Appian Platform. The Appian System Administrator will support platform configuration, environment operations, application deployments, access administration, monitoring, troubleshooting, and system reliability across ACWS environments.

LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing in technology and prototypes ahead of need, LMI brings commercial-grade platforms and mission-ready AI to federal agencies at commercial speed.

Leveraging our mission-ready technology and solutions, proven expertise in federal deployment, and strategic relationships, we enhance outcomes for the government, efficiently and effectively. With a focus on agility and collaboration, LMI serves the defense, space, healthcare, and energy sectors—helping agencies navigate complexity and outpace change. Headquartered in Tysons, Virginia, LMI is committed to delivering impactful results that strengthen missions and drive lasting value.

Responsibilities

The ideal candidate combines strong Appian platform knowledge with practical systems administration, integration, performance, and security experience and will work closely with developers, solution architects, DevSecOps engineers, database administrators, information assurance personnel, and functional stakeholders.

• Administer and maintain Appian Platform environments supporting ACWS application development, testing, staging, and production operations.
• Perform Appian application deployments, configuration changes, environment promotions, and release support in accordance with approved procedures.
• Manage Appian users, groups, roles, permissions, service accounts, and access-related configuration in coordination with security and program policies.
• Monitor Appian platform health, performance, capacity, logs, services, integrations, and system availability and take corrective action as needed.
• Support Appian Cloud configuration and platform support processes and coordinate with hosting or vendor support organizations when required.
• Troubleshoot complex Appian application, integration, performance, configuration, and connectivity issues and coordinate with development and infrastructure teams for resolution.
• Support enterprise identity and access integrations, including LDAP, Active Directory, SSO, SAML, certificates, and related authentication mechanisms.
• Support Appian in-memory data and platform architecture considerations, including sizing and horizontal or vertical scaling activities as directed.
• Coordinate with database administrators, DevSecOps engineers, cybersecurity personnel, and solution architects on platform changes, maintenance, and incident resolution.
• Support security hardening, configuration compliance, patching, and operational documentation for Appian environments.
• Maintain configuration records, runbooks, operational procedures, and troubleshooting guides and contribute to knowledge management.
• Participate in Agile planning, release activities, testing, user acceptance testing, and production implementation efforts.

Qualifications

MINIMUM QUALIFICATIONS:

• Bachelor's degree in Information Technology, Computer Science, Information Systems, Engineering, or a related field; equivalent relevant experience may be considered.
• 5+ years of experience in system administration, enterprise application administration, application operations, or related technical roles.
• Demonstrated experience administering enterprise applications and supporting application deployments, configurations, access controls, and troubleshooting.
• Experience with platform monitoring, logs, diagnostic tools, configuration management, and performance troubleshooting.
• Experience supporting identity and access technologies such as LDAP, Active Directory, SSO, SAML, or certificates.
• Strong understanding of enterprise application architecture, integrations, security, and operational support processes.
• Active Secret clearance or ability to obtain and maintain one.
• U.S. citizenship required.

DESIRED SKILLS

• Appian Platform administration or application operations experience strongly preferred.
• Appian certification or formal Appian training.
• Experience with Appian Cloud or Appian GovCloud and related platform support processes.
• Experience with Appian in-memory KDB engines, environment sizing, scaling, and performance optimization.
• Experience supporting DoD contract writing, acquisition, or other federal mission-critical applications.
• Familiarity with DoD RMF, STIGs, DISA security guidance, and security hardening activities.
• ITIL Foundation, Security+, or comparable technical certification.
• Experience working in Agile or SAFe delivery environments.

The target salary range for this position goes up to $144,000.

The salary range displayed represents the typical salary range for this position and is not a guarantee of compensation. Individual salaries are determined by various factors including, but not limited to location, internal equity, business considerations, client contract requirements, and candidate qualifications, such as education, experience, skills, and security clearances.

Job Locations

US-VA-Fort Belvoir