Oracle Integration & API Engineer
CACI International Inc
Ashburn, VA, US
Full-Time
$94,400
HybridExecutive
The Opportunity:
CACI is seeking an Oracle Integration and API Engineer to design, build, and sustain the integration fabric that connects Oracle Fusion Cloud HCM to the vast federal HR technology ecosystem. A large-scale federal HCM modernization program will replace legacy HR systems across multiple federal agencies serving federal civilian employees, and reliable integrations are the connective tissue that makes it all work. You will engineer bidirectional interfaces between Oracle Fusion Cloud HCM and systems including EHRI, eOPF, USA Staffing, USA Performance, Employee Express, MyPay, and federal payroll shared service providers (NFC, DFAS, and others) — all routed through the federal API Management (APIM) gateway using OAuth 2.0, REST/JSON, and OpenAPI 3.0 standards. Using Oracle Integration Cloud (OIC) and Oracle HCM APIs, you will build resilient, secure, and high-performance integration flows that meet program uptime SLAs. This is an exceptional opportunity for an integration engineer who wants to architect the plumbing behind one of the largest federal HR cloud transformation programs. This position is at the T4 (senior) level, suited for an experienced technical professional who operates with significant independence, resolves complex technical challenges using advanced techniques, and provides guidance and mentorship to less experienced team members.
Responsibilities:
Design, develop, and maintain integration interfaces between Oracle Fusion Cloud HCM and federal HR ecosystem systems including EHRI (XML/SFTP), eOPF (EDF/FDF/IDF feeds), USA Staffing (RPI/NHI/TUAPI), USA Performance, Employee Express, and MyPay
Engineer bidirectional payroll integration interfaces with federal payroll shared service providers (e.g., NFC, DFAS, IBC, GSA), implementing HCM Extract and payroll costing flows per provider-specific file specifications
Build and configure integration flows using Oracle Integration Cloud (OIC), leveraging OIC adapters, orchestration patterns, error handling, and retry logic to meet program uptime SLAs
Implement all integration endpoints through the federal API Management (APIM) gateway, adhering to OAuth 2.0 authentication, REST/JSON message formats, and OpenAPI 3.0 specification standards
Develop webhook-based event-driven integrations and near-real-time data synchronization flows for time-sensitive transactions including benefits enrollment, payroll changes, and personnel action notifications
Design and implement integration monitoring dashboards, alerting rules, and automated error recovery workflows to ensure proactive issue detection and resolution within SLA timeframes
Create and maintain comprehensive integration technical design documents, interface control documents (ICDs), data mapping specifications, and API documentation using OpenAPI 3.0 format
Support FEHB Data Hub integration for benefits carrier connectivity, implementing enrollment, reconciliation, and premium remittance data flows per federal specifications
Collaborate with cybersecurity engineers to ensure all integration endpoints implement FIPS 140-3 encryption, CUI handling protocols, and SCIM 2.0 identity provisioning where required
Participate in SAFe Agile ceremonies, contributing to sprint planning, backlog refinement, and integration testing coordination across functional and technical Agile Release Trains
Support parallel payroll validation testing by building automated comparison tools that reconcile Oracle Fusion Cloud HCM payroll outputs against legacy system outputs for each agency migration wave
Apply established methods, standards, and practices to independently resolve functional and technical issues of moderate scope, contributing to team knowledge bases and consulting with senior staff on complex or unfamiliar problems as they arise
ommunicate effectively with project team members and direct stakeholders to report progress, explain technical approaches, and support collaborative problem-solving within assigned workstreams and Agile Release Train ceremonies
Qualifications:
Required:
Applicable combination of education and experience:
T3 - Bachelor's degree and 4+ years of professional experience in integration development, API engineering, or middleware administration for enterprise applications. 3+ years of hands-on experience developing integrations using Oracle Integration Cloud (OIC), Oracle SOA Suite, or equivalent enterprise integration platforms
T4 - Bachelor's degree and 6+ years of professional experience in integration development, API engineering, or middleware administration for enterprise applications. 5+ years of hands-on experience developing integrations using Oracle Integration Cloud (OIC), Oracle SOA Suite, or equivalent enterprise integration platforms
T5 - Bachelor's degree and 9+ years of professional experience in integration development, API engineering, or middleware administration for enterprise applications. 8+ years of hands-on experience developing integrations using Oracle Integration Cloud (OIC), Oracle SOA Suite, or equivalent enterprise integration platforms
Strong proficiency in REST API development, JSON/XML data formats, OAuth 2.0 authentication, and OpenAPI 3.0 specification design
Experience with Oracle Fusion Cloud HCM APIs including SOAP/REST web services, HCM Extracts, HDL/HSDL, BIP reports, and BI Publisher for data exchange
Demonstrated experience with SFTP, message queuing, and file-based integration patterns for batch data exchange in enterprise environments
Familiarity with CI/CD pipelines and version control systems (Git) for managing integration artifacts in a DevOps environment
Ability to work within SAFe Agile delivery teams and collaborate across functional, technical, and security team boundaries
Must be able to obtain and maintain a Public Trust clearance (US Citizenship required)
Additional experience may substitute for degree
Desired:
6+ years of integration engineering experience with significant Oracle Fusion Cloud or Oracle ERP Cloud integration work
Oracle Cloud Infrastructure (OCI) or Oracle Integration Cloud certification
Experience integrating with federal HR systems such as EHRI, eOPF, USA Staffing, NFC payroll, DFAS payroll, or Employee Express
Familiarity with the federal APIM gateway architecture, federal API management standards, or FedRAMP-authorized integration environments
Experience with event-driven architectures, webhooks, and real-time streaming integration patterns
Knowledge of federal data standards including EHRI XML schemas, eOPF document format specifications (EDF/FDF/IDF), and HR-XML standards
Python, Groovy, or JavaScript scripting proficiency for integration transformation logic and automated testing
Experience with Oracle Cloud technologies including Oracle Integration Cloud (OIC) and/or Oracle Cloud Infrastructure (OCI) in enterprise HCM or ERP environments
What You Can Expect:
A culture of integrity.
At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation.
An environment of trust.
CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.
A focus on continuous growth.
Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy.
Pay Range:
There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.
The proposed salary range for this position is:
$94,400 - $198,200