Appian Integration Engineer

Our Digital Modernization Division is an information technology and management consulting department that offers integrated, strategic solutions to public- and private-sector clients. ICF brings the expertise, agility, and commitment to design, build, and operate high-performance IT solutions that support clients' missions.

The Integration Engineer will own the integration and data-migration layer of a federal case management modernization built on the Appian platform. You will design and build secure, traceable, API-based integrations between Appian and federal HR systems of record, and lead the data migration and decommissioning of a legacy .NET/SQL Server application — including its reporting. This is a hands-on engineering role for an integration and API expert who has already built integrations and Web APIs in Appian and wants to go deeper.

Job Location: Remote work is authorized. Must support US Eastern time zone working hours.

*If you accept this position, you should note that ICF does monitor employee work locations, blocks access from foreign locations/foreign IP addresses, and prohibits personal VPN connections.

What You Will Do

• Design and build inbound and outbound integrations in Appian — Connected Systems, Integration objects, Web APIs, and synced record types — against REST and SOAP services, using API keys, OAuth 2.0, and service accounts appropriately.
• Establish the integration patterns the team builds to: incremental (watermark) synchronization, idempotent upserts, retry and back-off, correlation IDs, reconciliation queues for changes that cannot be applied automatically, and per-run audit logging.
• Produce and maintain API contracts and interface control documents; work directly with system-of-record owners to obtain, validate, and align to their API documentation and test environments.
• Lead the migration out of a legacy .NET/SQL Server application: data profiling, source-to-target mapping, transformation and cleansing, validation and reconciliation, cutover planning, and migration of its reports to Power BI.
• Implement data-quality checks, validation, monitoring, and traceability so integration health is visible in the client's enterprise monitoring tools and failures are actionable.
• Tune integration and data-movement performance against defined service levels for response time, error rate, and availability.
• Build within a DevSecOps pipeline (source control, automated tests, code quality scanning) and contribute integration test coverage.
• Collaborate with the Appian architect, developers, testers, data governance personnel, and government subject-matter experts in an Agile (Scrum) delivery team.

Required Skills:

• Candidate must reside in the U.S., be authorized to work in the U.S., and all work must be performed in the U.S.
• Candidate must have lived in the U.S. for three (3) full years out of the last five (5) years.
• Candidate must be able to pass a successful Public Trust background check.
• US Citizenship is required by the federal government for this position.
• Minimum five years of experience designing, building, and operating system integrations and APIs (REST/SOAP), including authentication, error handling, and monitoring.
• Hands-on experience building integrations and/or Web APIs in Appian (Connected Systems, Integration objects, Web API objects, record types) in at least one delivered project. Appian certification is not required.
• Strong SQL skills and experience migrating data out of relational systems, including source-to-target mapping, transformation, validation, and reconciliation.

Desired Skills:

• Bachelor's degree in a related field; directly related experience may be considered in place of education.
• Experience with Microsoft SQL Server and with modernizing or decommissioning .NET applications.
• Experience integrating with federal HR systems of record (for example, USA Staffing, HR Connect, or similar OPM/Treasury shared services).
• Experience migrating operational reporting to Power BI.
• Experience with OpenAPI/Swagger, API gateways, and API security practices (OAuth 2.0, key management, mTLS).
• Scripting or programming in at least one of Python, Java, or JavaScript for transformation, testing, or automation.
• Familiarity with CI/CD and quality tooling such as GitLab, Jenkins, SonarQube, and JMeter, and with log/monitoring platforms such as Splunk.
• Appian Associate or Senior Developer certification; AWS or Azure certification.
• Experience with FedRAMP-hosted or GovCloud environments and federal ATO processes.
• Ability to work effectively in Agile delivery teams and collaborate with government and contractor stakeholders.
• Clear written and verbal communication skills, strong organization, and attention to detail.

Professional Skills:

• Highly effective analytical, problem-solving, and decision-making capabilities.
• Excellent communication and interpersonal skills to work effectively across business, technical, and client teams.
• Organized, detail-oriented, and able to prioritize multiple assignments in a delivery-focused environment.

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Bot and Third-Party Applications

Please note that this application must be submitted directly by the applicant for consideration. Failure to do so may result in the application being excluded for consideration. Applicants needing an accommodation for disability or religious purposes in connection with the application process should contact View email address on aiapply.co for assistance.

Working at ICF

ICF is a global advisory and technology services provider, but we’re not your typical consultants. We combine unmatched expertise with cutting-edge technology to help clients solve their most complex challenges, navigate change, and shape the future.

We can only solve the world's toughest challenges by building a workplace that allows everyone to thrive. We are an equal opportunity employer. Together, our employees are empowered to share their expertise and collaborate with others to achieve personal and professional goals. For more information, please read our EEO policy.

We will consider for employment qualified applicants with arrest and conviction records.

Reasonable Accommodations are available, including, but not limited to, for disabled veterans, individuals with disabilities, and individuals with sincerely held religious beliefs, in all phases of the application and employment process. To request an accommodation, please email View email address on aiapply.co and we will be happy to assist. All information you provide will be kept confidential and will be used only to the extent required to provide needed reasonable accommodations.

Read more about workplace discrimination rights or our benefit offerings which are included in the Transparency in (Benefits) Coverage Act.

Candidate AI Usage Policy

At ICF, we are committed to ensuring a fair interview process for all candidates based on their own skills and knowledge. As part of this commitment, the use of artificial intelligence (AI) tools to generate or assist with responses during interviews (whether in-person or virtual) is not permitted. This policy is in place to maintain the integrity and authenticity of the interview process.

However, we understand that some candidates may require accommodation that involves the use of AI. If such an accommodation is needed, candidates are instructed to contact us in advance at View email address on aiapply.co . We are dedicated to providing the necessary support to ensure that all candidates have an equal opportunity to succeed.

Pay Range - There are multiple factors that are considered in determining final pay for a position, including, but not limited to, relevant work experience, skills, certifications and competencies that align to the specified role, geographic location, education and certifications as well as contract provisions regarding labor categories that are specific to the position.

The pay range for this position based on full-time employment is:

$98,614.00 - $167,644.00Nationwide Remote Office (US99)