Senior Appian Developer with Security Clearance

Zachary Piper Solutions is currently seeking a Senior Appian Developer to support an Intelligence Community (IC) customer enterprise workflow modernization initiative based in Reston, VA. This position is a full-time role that has HYBRID flexibility. As a Senior Appian Consultant, you will play a critical role in delivering secure enterprise workflow solutions by developing scalable applications, integrating enterprise systems, and supporting the modernization of mission-critical business processes within secure government environments.

Key Responsibilities

• Design, develop, and maintain secure enterprise applications using the Appian platform.
• Develop workflow automation solutions supporting Intelligence Community business operations, including case management, approvals, logistics, financial systems, and other mission-support functions.
• Configure and optimize Appian Data Fabric to connect multiple enterprise data sources and reduce reliance on traditional ETL processes.
• Design and implement secure integrations using REST APIs, SOAP services, JDBC connections, and other enterprise integration technologies.
• Develop custom Appian plug-ins when business requirements extend beyond standard platform capabilities.
• Collaborate with architects and Technical Delivery Managers to design scalable, maintainable, and secure application solutions.
• Participate in Agile software development activities including sprint planning, backlog refinement, pair programming, code reviews, daily standups, and retrospectives.
• Support deployment of applications from unclassified development environments into secure customer environments.
• Troubleshoot technical issues and implement performance improvements across existing applications.
• Mentor junior developers and contribute to technical knowledge sharing across the team.
• Work directly with customer stakeholders to gather requirements, refine business processes, and deliver high-quality technical solutions.
• Ensure applications adhere to security requirements and operational standards within classified government environments.

Requirements

• Approximately 4-7 years of experience in software development, technical consulting, application development, or a related technical field.
• Strong hands-on Appian development experience.
• Experience with recent versions of the Appian platform and the ability to clearly articulate platform expertise.
• Experience developing Appian applications using record types, process models, interfaces, expression rules, and other Appian objects.
• Experience designing and implementing system integrations using REST APIs, SOAP services, JDBC connections, or similar technologies.
• Working knowledge of relational databases, database design principles, and SQL.
• Understanding of object-oriented programming concepts and software development methodologies.
• Experience working within Agile development teams and participating in sprint-based software delivery.
• Strong written and verbal communication skills with the ability to work effectively in customer-facing environments.
• Ability and willingness to work within secure facilities and SCIF environments as required.

Clearance Requirements

• TS/SCI Clearance strongly preferred.
• Active CI Polygraph or Full Scope Polygraph highly desired depending on program requirements.

Compensation to Include: Salary Range: $160,000 - $185,000 depending on experience Full Benefits: Medical, Dental, Vision, 401(k), Paid Time Off (PTO), and Sick Leave if required by law. #LI-CB1 #LI-HYBRID This job posting opens on 9/15/26 and will remain open for at least 30 days from the date of posting Keywords: Appian, Appian Developer, Appian Consultant, Appian Senior Consultant, Appian Data Fabric, Workflow Automation, Business Process Management, BPM, Low-Code Development, Enterprise Applications, Process Models, Record Types, SAIL, Appian Plug-ins, REST API, SOAP, JDBC, SQL, Agile Development, Enterprise Integration, Intelligence Community, DIA, TS Clearance, TS/SCI, CI Polygraph, Full Scope Polygraph, Software Development, Application Modernization, Case Management, Secure Application Development, Government Contracting, Federal Consulting, Technical Consulting, System Integration, Data Management, SCIF, Object-Oriented Programming, Enterprise Workflow Solutions, Low-Code Platform Development.