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Principal Appian Consultant; TS​/SCI

Job in McLean, Fairfax County, Virginia, USA
Listing for: Groundswell Corporation
Full Time position
Listed on 2026-05-31
Job specializations:
  • IT/Tech
    Cloud Computing, IT Consultant, IT Project Manager, Systems Analyst
Salary/Wage Range or Industry Benchmark: 150000 - 200000 USD Yearly USD 150000.00 200000.00 YEAR
Job Description & How to Apply Below
Position: Principal Appian Consultant (TS/SCI)

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 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.
  • Guide clients on Agile, QA, and governance for multi‑app platform implementations.
  • Support design, development, and test activities across multiple client projects.
  • Support large scale implementation teams consisting of multiple development pods.
  • Guide clients on architecture design, platform scalability, configuration management, Dev Sec Ops , 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/Maria

    DB).
  • Web services, integrations and middleware (e.g., RESTful/SOAP, Mule/IIB/Fusion).
  • Hybrid position requiring on‑site presence at our Groundswell HQ in McLean or other client sites in the DC Metro area.
  • Active TS/SCI clearance required.
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.
  • Dev Sec Ops  and/or Configuration Management.
  • Machine Learning, Artificial Intelligence.
  • Certifications.
Why You’ll Never Want to Leave
  • Comprehensive medical, dental, and vision plans.
  • Flexible Spending Account.
  • 4% 401(k) Match (immediate vesting).
  • Paid Time Off.
  • Tuition reimbursement, certification programs, and professional development.
  • Flexible work schedule.
  • On‑site gym and childcare option.
Compensation

The salary range for this role is estimated at $ – $. Compensation decisions are made based on skill set, experience, training, licensure, and business needs. Geographic differentials are not reflected in the range.

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.

Accommodations

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  or 703‑639‑1777.

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