Appian Developer

Are you ready to join Leidos all-star team? Through training, teamwork, and exposure to challenging technical work, let Leidos show how to accelerate your career path.

Leidos has an exciting opening for you as our next Secret Cleared Appian Low Code Software Developer supporting DIA-NDOC (formerly NMEC) under our 10-year DOMEX Technology Platform (DTP) contract. You will work closely with Systems Engineers, Software Engineers, Architects, and Operations Engineering/Manager on a broad scope of activities extending across the development of systems to include backend and frontend software engineering tasks. Have impact as part of a mission focused, solutions oriented, and adaptive team that values innovation, collaboration, and professional development.

We integrate off the shelf and new development efforts to sustain and enhance existing architecture and by leveraging cloud-based computing, artificial intelligence (Al), machine learning (ML) and cross-domain transfer systems to provide cutting edge requirements management, task coordination, data exploitation, enrichment, triage, and analytics capabilities to Defense and Intelligence Community members. Our program advances the state of the art in mission-focused big data analytics tools and micro-service development spanning the breadth of Agile sprints to multiyear research and development cycles. While the primary work location is at our client location in Bethesda, MD or other DIA or JRIC facility, we offer a flexible schedule, and some tasks may be performed remotely.

As an Appian SW Integrator / Low Code Developer, you will work collaboratively with other developers, systems engineers, technologists, and program leadership with a focus on the following task areas:

Work with a team of system integration engineers to successfully deploy release candidates to production environment.

• Participate in test, staging and production deployment.
• Integrate container-based-Appian using Kubernetes, Rancher, Helm and other DevOpsSec integration tools
• Monitor automated system integration tests to identify failed modules and components
• Manage individual project priorities, deliverables, and deadlines
• Foster an environment of collaboration with the different team members in the goal of providing quality service and product to our customer

To be successful in this role you need these skills (required):

• Bachelor's Degree and 8+ years of prior relevant experience or Masters with 6+ years of prior relevant experience
• Must possess an Active Secret Clearance and ability to obtain and maintain a TS/SCI with Poly
• Experience with Appian
• Experience with containerization
• Experience with Agile practices
• Development and/or scripting experience, especially Python and Bash
• Strong verbal and written communication skills
• Enthusiastic with the ability to work well on a team and a self-starter who can work on their own

You will wow us even more if you have some of these skills:

• Experience with systems at scale
• Kafka or other message passing systems
• Experience on a production/ enterprise system
• Cloud infrastructure experience
• Appian certification
• Experience with any of the following technologies:
  • Kubernetes monitoring, e.g., Promethe Grafana
  • Appian integration with PostgreSQL or other DB
  • SALT for deployment automation
  • GraphQL
  • Elasticsearch, Kibana, and Logstash, specifically admin experience
  • Helm and Helmfile

#NMECDTP-Leidos

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.

Original Posting:
December 15, 2025

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:
Pay Range $107,900.00 - $195,050.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.