Senior Appian Lead Developer

• Position Overview: Senior Appian Lead Developer responsible for leading the planning, design, development, and sustainment of mission-critical Appian applications across classified and unclassified domains. The lead developer directs Appian development, builds process models, SAIL interfaces, records, reports, and integrations, and reviews data models, integrations, security constraints, permissions, and release readiness before deployment. This senior position serves as a technical interface for stakeholders, guides other Appian developers, and ensures every release meets 100% of defined requirements with no critical defects at user acceptance testing while complying with DAF security standards in DoD IL5/IL6 environments. 

• Responsibilities:  

• Lead Appian solution planning and design, translating stakeholder requirements into application architecture, data models, and delivery plans. 

• Design and build process models using Smart Services, XOR/AND/OR gateways, sub-processes, and exception handling such as timer events and error flows. 

• Develop responsive SAIL interfaces for desktop and mobile users that deliver intuitive, consistent user experiences. 

• Configure Appian Records (Data Fabric), define relationships between data entities, and build grid- and chart-based reports and command-level dashboards. 

• Design and manage relational database schemas in SQL, MariaDB, or Oracle and map them to Appian Custom Data Types (CDTs). 

• Configure Connected Systems and Integration Objects using Web APIs, and parse JSON outputs. 

• Implement row-level security and proper handling of CUI and PII in accordance with DAF security and compliance standards. 

• Review data models, integrations, security constraints, permissions, and code quality, and determine release readiness for all Appian changes. 

• Plan and lead testing and user acceptance testing so deliverables meet 100% of defined requirements with no critical defects. 

• Manage deployments across DoD IL5/IL6 environments using approved change control, and maintain technical documentation. 

• Mentor and guide Appian developers, set development standards and reusable patterns, and serve as the technical interface for stakeholder support and troubleshooting. 

• Years of Experience: 

• At least 5 years of experience in Appian planning, developing, and delivering interfaces, processes, data models, and records. 

• Education Level: High school diploma or GED equivalent. 

• Clearance Requirements: Must possess and maintain an active Top Secret (TS) security clearance.

• Certification Requirements: None required. Appian Certified Lead Developer preferred; Appian Certified Senior Developer or Appian Certified Associate Developer also preferred. 

• Any other work-related qualifications needed for the role: Advanced knowledge of Appian process flow design, including Smart Services, gateways, sub-processes, and exception handling; ability to design intuitive, responsive SAIL interfaces; proficiency with Appian Records (Data Fabric), entity relationships, and dashboards; ability to design relational database schemas (SQL, MariaDB, or Oracle) and map them to CDTs; strong understanding of JSON and Connected Systems via Web APIs; familiarity with the limitations and governance of developing in DoD IL5/IL6 environments; and knowledge of DAF security and compliance standards, including CUI/PII handling and row-level security. 

Salary Range: $135,000-$150,000

The compensation range listed for this position represents the good faith salary range Diné Development Corporation (DDC) and its subsidiaries reasonably expect to pay for the role, in accordance with applicable state and local pay transparency laws. Actual compensation will be determined based on a variety of factors, including the position's responsibilities, the candidate's education, experience, skills, internal equity, market considerations, and any applicable collective bargaining agreements or legal requirements.

About Us

Diné Development Corporation (DDC) is a Navajo Nation–owned family of companies that provides government agencies and commercial organizations with high-quality IT, professional, environmental, and research and development services. DDC is dedicated to empowering the Navajo Nation and the communities we serve.

Benefits

Eligible full-time employees receive a comprehensive benefits package, including medical, dental, vision, life and disability coverage, retirement savings with company match, and paid time off. Additional benefits include voluntary supplemental benefits, access to an employee assistance program, and educational assistance with tuition reimbursement.

Equal Opportunity & Compliance Statement

This contractor and subcontractor shall abide by the requirements of 41 CFR 60-1.4(a), 60-300.5(a), and 60-741.5(a). These regulations prohibit discrimination against qualified individuals based on their status as protected veterans or individuals with disabilities, and prohibit discrimination against all individuals based on their race, color, religion, sex, sexual orientation, gender identity, national origin, or for inquiring about, discussing, or disclosing information about compensation, or any other basis prohibited by law.

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