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Principal Applied AI Engineer

Appian


Job Location:

McLean, MD - USA

Yearly Salary: USD 200000 - 350000
Posted: 29 September 2026 (14 hours ago)
Application Deadline: 27 December 2026
Vacancies: 1 Vacancy

Job Summary

Here at Appian our values of Intensity and Excellence define who we are. We set high standards and live up to them ensuring that everything we do is done with care and quality. We approach every challenge with ambition and commitment holding ourselves and each other accountable to achieve the best results. When you join Appian youll be part of a passionate team dedicated to accomplishing hard things together.

Principal Applied AI Engineer

Lead the engineering of software that matters driving AI automation for the worlds largest enterprises.

This role is based at our headquarters in McLean Virginia. Appian was built on a culture of in-person collaboration which we believe is a key driver of our mission to be the best. Employees hired for this position are expected to be in the office 5 days a week to foster that culture and ensure we continue to thrive through shared ideas and teamwork. We believe being in the office provides more opportunities to come together and celebrate working with the exceptional people across Appian.

ABOUT THE TEAM

Appian Engineering spans the full depth of our platform: from the foundational layers that power enterprise scale to the AI capabilities redefining what automation can do. We operate in a highly collaborative fast-paced environment focused on technical precision continuous learning and high code quality. By joining our team you will solve real-world problems that directly shape how Appian delivers our AI-Powered Process Automation platform to enterprises around the world.

THE OPPORTUNITY

As a Principal Applied AI Engineer you will serve as the technical linchpin for applied AI on the team bringing deep hands-on expertise in designing and operating production LLM systems and a track record of influencing engineering direction beyond your immediate scope. Equipped with cutting-edge AI tooling you will drive the design and delivery of high-complexity AI systems spanning code generation agents retrieval structured generation tool use model routing evaluation and observability set the technical bar for the team and lead other engineers towards solutions of real complexity to ensure flawless Enterprise-Grade Orchestration.

WHAT YOULL DO

  • Develop Clean Software: Architect build and optimize high-performance production LLM systems while maintaining a strong personal technical presence on the team.

  • Lead Platform Modernization: Spearhead strategic technological changes and champion code refactoring efforts to keep the core Appian codebase and the AI systems built on it cutting-edge modern and performant.

  • Engineer with AI: Use AI coding tools fluently as a force multiplier: generating reviewing and critically evaluating AI-assisted code to ship faster without compromising quality or correctness.

  • Lead Architecture & Delivery: Drive technical story breakdowns acceptance criteria and architectural design across complex multi-tier and AI-powered application layers from feature scoping through implementation. Build prototypes to de-risk novel AI approaches and establish the standards others build on.

  • Optimize Performance & Scale: Manage product availability latency scalability and efficiency by engineering deep reliability into our core software systems and performing advanced system tuning.

  • Drive Engineering Excellence: Radiate development best practices across the department perform meticulous code reviews on design and implementation and build automation frameworks to prevent problem recurrence.

  • Lead & Grow Engineers: Actively coach and mentor engineers at multiple levels identify and close skill gaps on the team and take ownership of accelerating the technical growth of those around you.

  • Influence Technical Documentation: Share your expert domain knowledge regularly across the department building a reputation as a vital resource and publishing high-quality content to Engineerings permanent documentation site.

REQUIRED QUALIFICATIONS

  • Education: Minimum of a Bachelor of Science degree in Computer Science or a related technical/analytical discipline. (Equivalent experience is not accepted in lieu of a degree).

  • Experience: 10 years of relevant software development experience with a BS (or 8 years of experience paired with a Master of Science in Computer Science or related field).

  • Production LLM Systems: Deep hands-on experience designing and operating production LLM systems.

  • AI Systems Expertise: Demonstrated expertise across code generation agents retrieval structured generation tool use model routing evaluation and observability.

  • AI-Augmented Development: Demonstrated experience using AI coding assistants and a strong ability to evaluate coach others on and selectively apply AI-generated code in a production engineering context.

  • Domain Expertise: Strong distributed-systems API security and reliability foundations with the ability to contribute meaningfully at a senior individual contributor level within that space.

  • Cross-Team Influence: Demonstrated ability to drive technical decisions and shape engineering practices beyond a single team or project scope.

  • Production Mastery: Proven experience developing optimizing and maintaining a high-volume mission-critical production service environment.

  • Communication & Alignment: Exceptional ability to communicate highly technical architectures verbally visually and in writing to diverse engineering audiences.

PREFERRED QUALIFICATIONS

  • Compilers & Program Analysis: Experience with compilers program analysis formal or executable specifications or legacy modernization is strongly preferred.

  • We value experience with enterprise platforms such as Salesforce or ServiceNow as these skills translate well into our Enterprise-Grade Orchestration environment.

The base salary range represents a good faith and reasonable estimate of the range at the time of posting. Actual compensation will be dependent on a number of factors including but not limited to the candidates relevant work experience qualifications internal peer equity and market and business conditions that exist when extending an offer. A discretionary bonus may be awarded in recognition of individual and company performance.

In addition Appian provides generous benefits offerings that include a 401(k) plan with company match flexible time off paid parental leave medical dental and vision plans life insurance disability insurance wellness programs flexible spending accounts health savings account contributions an employee referral bonus program and learning and development resources. Certain positions may be eligible for equity awards.

Pay and benefits are subject to change at any time consistent with the terms of any applicable compensation commission bonus or benefit plans.

Base Salary Range

$200000 - $350000 USD

Tools and Resources

  • Training and Development: During onboarding we focus on equipping new hires with the skills and knowledge for success through department-specific training. Continuous learning is a central focus at Appian with dedicated mentorship and the First-Friend program being widely utilized resources for new hires.
  • Growth Opportunities: Appian provides a diverse array of growth and development opportunities including our leadership program tailored for new and aspiring managers a comprehensive library of specialized department training through Appian University skills based training and tuition reimbursement for those aiming to advance their education. This commitment ensures that employees have access to a holistic range of development opportunities.
  • Community: Well immerse you into our community rooted in respect starting on day one. Appian fosters inclusivity through our 8 employee-led affinity groups. These groups help employees build stronger internal and external networks by planning social educational and outreach activities to connect with Appianites and larger initiatives throughout the company.

Benefits

Appian offers a comprehensive benefits package designed to support your health wellbeing and financial future. Benefits may include health coverage Employee Assistance Program (EAP) with free mental health support life and disability insurance an Employee Stock Purchase Program (ESPP) a retirement/pension plan wellness dollars tuition reimbursement family-forming benefits and more. Benefits vary by countryplease ask your Talent Acquisition contact for details specific to the location you are applying to.

About Appian

Appian provides AI automation for the most important business processes at the worlds largest organizations. Our platform is known for its unique power reliability and scale. Weve been automating processes for more than 25 years and have proven expertise in enterprise operations. For more information visit .

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Appian is an equal opportunity employer that strives to attract and retain the best talent. All qualified applicants will receive consideration for employment without regard to any characteristic protected by applicable federal state or local law.

Appian provides reasonable accommodations to applicants in accordance with all applicable laws. If you need a reasonable accommodation for any part of the employment process please contact us by email at. Please note that only inquiries concerning a request for reasonable accommodation will be responded to from this email address.

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