Appian Principal Developer Consultant - National Security
Confirmed on the employer's own hiring board on Nov 4, 2026. First seen by Alion on Jun 5, 2026. Groundswell scores B on the Alion truth index.
Who Are We?
Groundswell is a premier technology integrator and solution provider, resolutely committed to solving the most complex challenges facing federal agencies today. Our name, Groundswell, represents our commitment to be an unstoppable, seismic change in government. Ours is a small company culture with big company reach and results. Are you ready to be audacious, be bold and drive change at a rapid pace? Join us, where we’ll make a greater impact together.
What You'll do:
Groundswell is looking for experienced Appian Consultants to provide leadership for our delivery teams and act as a trusted advisor to our clients. Principal Appian Developer Consultants help scale our business by providing expert guidance on solution delivery and designing and integrating cutting-edge Appian solutions into our client’s architecture. In addition, this role and level will mentor our delivery teams on best practices for advanced technical solutions and platform design, work with our clients on the most technically challenging Appian programs, and implement internal processes and tools to improve the efficiencies of the business.
Key Responsibilities:
Lead implementation teams through complex technical solutions with Appian and tangential technologies
Guides clients on Agile, QA, and governance for multi-app platform implementations
Supports design, development, and test activities across multiple client projects
Supports large scale implementation teams consisting of multiple development pods
Guide clients on architecture design, platform scalability, configuration management, DevSecOps, and other program initiatives as needed to drive technical success
Ensure solutions are built for scale and performance
Create and document implementation best practices as well as knowledge base articles for internal enablement
Provide thought leadership on process improvement
Support internal solutions, infrastructure, and tools
Mentorship, training, and enablement of resources
Required Qualifications:
5+ years of experience with Appian solutions
5+ years of related IT experience
Bachelor’s Degree (or equivalent) or higher in Computer Science, Information Systems, Systems Engineering, or related area
Active Lead Certification
Expert experience with Appian delivery using an Agile methodology
Strong technical design and implementation and problem-solving skills
Strong communication skills and ability to convey complex concepts in an easy-to-understand manner, both verbally and written; active listening skills to gather key information from internal and external partners; analytical and strategic foresight
Strong organizational skills, attention to detail, ability to work in a high-paced environment, multi-task (prioritize and manage), and work both independently and as a team (team-building skills including courtesy, professionalism, and a “do whatever it takes attitude”)
RDBMS (e.g. Oracle, SQL Server, MySQL/MariaDB)
Web services, Integrations and Middleware (e.g., RESTful/SOAP, Mule/IIB/Fusion)
US Citizenship required
Must be able to obtain and maintain a Secret level clearance. Preference will be given to candidates who already have a Secret clearance.
Preference will be given to candidates local to the DC Metro area.
Must be willing to travel (0-15%) for client meetings as needed
Preferred Skills:
UI/UX Design
Cloud Computing/IaaS (e.g., AWS, Azure, Google Cloud)
Authentication (e.g., SAML, Kerberos, OAuth, LDAP)
Data management and data visualization/BI
DevSecOps and/or Configuration Management
Machine Learning, Artificial Intelligence
Skills:
Certification:
Why You’ll Never Want to Leave:
Comprehensive medical, dental, and vision plans
Flexible Spending Account
4% 401K Match (immediate vesting)
Paid Time Off
Tuition reimbursement, certification programs, and professional development
Flexible work schedule
On-site gym and childcare option
The salary range for this role takes into account the wide range of factors that are considered in making compensation decisions, including but not limited to skill sets, experience and training; licensure and certifications; and other business and organizational needs. The disclosed range estimate has not been adjusted for any applicable geographic differential associated with the location at which the position may be filled. At Groundswell, it is not typical for an individual to be hired at or near the top of the range for their role, and compensation decisions are dependent on the facts and circumstances of each case. A reasonable estimate of the current range is:
$128,590.00 - $180,783.00NOTE: Groundswell does not accept unsolicited resumes through or from search firms or staffing agencies. All unsolicited resumes will be considered the property of Groundswell, and Groundswell will not be obligated to pay a placement fee.
Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, pregnancy, genetic information, disability, status as a protected veteran, or any other protected category under applicable federal, state, and local laws.
Read a copy of the Company’s Non-Discrimination Policy Statement.
Additional Resources:
Disability Accessibility Accommodation: If you are an individual with a disability and would like to request a reasonable accommodation as part of the employment selection process, please contact us at [email protected] or 703-639-1777.