Sr. Appian Software Developer
About The Position
The Digital Modernization Sector brings together our digital transformation and IT programs, allowing us to better serve our customers through scale and repeatability. We are looking for a Senior Appian Software Engineer with 10 plus years of experience in software development lifecycle practices and secure coding principles. This role requires experience with the design and delivery of complex Appian process models, SAIL interfaces, records, reports, and Appian AI capabilities. Additionally, experience with API development and the design and development of robust system integrations (REST/SOAP APIs, microservices) connecting Appian with disparate federal agency databases and legacy systems is essential. The candidate must have a Bachelor's Degree in Computer Science, Software Engineering or related field or a Master's Degree and 6 to 10 years of related experience. Additional years of experience may be accepted in lieu of the degree requirement. Strong written and verbal communication skills, and the ability to work independently and collaborate effectively within cross-functional Agile teams are also required.
Requirements
- 10+ years of software development lifecycle practices and secure coding principles.
- Experience with design and delivery of complex Appian process models, SAIL interfaces, records, reports, and Appian AI capabilities.
- Experience with API development and design and development of robust system integrations (REST/SOAP APIs, microservices) connecting Appian with disparate federal agency databases and legacy systems.
- 5+ years of dedicated, hands-on Appian design and development experience.
- Experience operating within Agile/Scrum delivery environments, utilizing CI/CD pipelines and Git/GitLab for source control.
- Bachelors Degree in Computer Science, Software Engineering or related field or Masters Degree and 6 to 10 years of related experience. Additional years of experience may be accepted in lieu of degree requirement.
- Strong written and verbal communication skills.
- Ability to work independently and collaborate effectively within cross-functional Agile teams.
- Experience supporting Appian platform upgrades, plugin remediation, or modernization initiatives.
- Experience with implementing Appian’s Data Fabric.
- Experience with data and system migrations from SQL Server or Maria Database.
- Experience developing or maintaining custom Appian plugins using Java.
- Familiarity with CI/CD pipelines, Jenkins, Docker, or containerized deployment approaches.
- Experience supporting AWS-hosted or cloud-based application environments.
- Exposure to Kubernetes or container orchestration platforms.
- Exposure to Appian AI capabilities, AI Skills, AI Copilot, AI Document Processing, or other emerging Appian platform features.
- Experience supporting federal government.
- Experience contributing to knowledge transfer and cross-team collaboration initiatives within technical organizations.
Nice To Haves
- Prior background in C# and full-stack .NET development, highly desired for custom API building and legacy system migrations.
- Hands-on experience implementing Appian AI Copilot, AI Skills, or Intelligent Document Processing (IDP).
- Prior delivery experience within federal civilian or DoD environments.
- Appian Senior Developer or Lead Developer Certification.
Responsibilities
- Design and delivery of complex Appian process models, SAIL interfaces, records, and reports.
- Develop and design robust system integrations using REST/SOAP APIs and microservices to connect Appian with federal agency databases and legacy systems.
- Operate within Agile/Scrum delivery environments.
- Utilize CI/CD pipelines and Git/GitLab for source control.
- Support Appian platform upgrades, plugin remediation, or modernization initiatives.
- Implement Appian’s Data Fabric.
- Perform data and system migrations from SQL Server or Maria Database.
- Develop or maintain custom Appian plugins using Java.
- Support AWS-hosted or cloud-based application environments.
- Contribute to knowledge transfer and cross-team collaboration initiatives within technical organizations.
Benefits
- 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.
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What This Job Offers
Job Type
Full-time
Career Level
Senior
