CareDx, Inc. is a leading precision medicine solutions company focused on the discovery, development, and commercialization of clinically differentiated, high-value healthcare solutions for transplant patients and caregivers. CareDx offers products, testing services, and digital healthcare solutions along the pre- and post-transplant patient journey, and is the leading provider of genomics-based information for transplant patients. We are seeking a detail-oriented and technically skilled Implementation & Support Systems Engineer (HLA Lab Specialist) to support the deployment, optimization, and maintenance of Laboratory Information Systems (LIS/LIMS), specifically in HLA and clinical laboratory environments. This role combines advanced technical support, data integration, and implementation responsibilities across both internal and external customer platforms. The ideal candidate brings a strong foundation in HLA lab workflows, SQL, HL7 interfaces, and a proactive, customer-focused mindset. Key Responsibilities: System Implementation & Support - Implement and configure CareDx and third-party LIS/LIMS platforms (e.g., mTilda, HistoTrac, Soft HLA), ensuring accurate system setup and workflow integration within HLA and transplant labs. - Deploy and maintain HL7 interfaces, including setup, custom filtering, and troubleshooting. - Troubleshoot application and interface issues related to operating systems (Windows 10/11), databases (SQL Server, Oracle), and VPN connectivity. - Assist in the planning and execution of software deployments, updates, and user training during go-live phases and beyond. - Participate in remote support, connectivity configuration (e.g., VPN, RDP), and system performance monitoring. Technical Reporting & Data Management - Develop and optimize SQL queries and routines for system data extraction, performance tuning, and validation. - Create and maintain customized clinical and operational reports using SAP Crystal Reports. - Assist with data migration projects, including ETL scripting and data validation for transitions from legacy systems. Customer Engagement & Documentation - Act as a key technical resource to internal teams and external clients throughout implementation and support phases. - Provide post-deployment technical support with a strong emphasis on customer service and timely issue resolution. - Maintain thorough documentation of system configurations, workflows, support protocols, and troubleshooting logs. Collaboration & Continuous Improvement - Work independently and collaboratively with product,development, and clinical teams to improve system performance and user experience. - Stay current on relevant laboratory technologies and industry standards, contributing insights to enhance deployment and support practices. Qualifications & Experience: Required: - Education: Bachelor's degree in MIS, Computer Science or related field. - Experience: 2–5 years of hands-on experience supporting LIS/LIMS platforms, ideally in an HLA or clinical laboratory environment. - Proficiency in writing and optimizing SQL queries; experience with Microsoft SQL Server and/or Oracle. - Experience with SAP Crystal Reports development. - Working knowledge of HL7, lab instrument connectivity, and healthcare interoperability standards. - Familiarity with Microsoft Windows systems, Active Directory, and VPN protocols. - Ability to manage multiple priorities independently and meet SLA-driven deadlines. - Availability for rotating on-call support (e.g., one week per month). Preferred: - Experience with HLA lab workflows and systems (e.g., Fusion, MatchIT). - Exposure to biomedical systems engineering or healthcare IT environments. - Basic scripting or coding knowledge (e.g., Python, JavaScript, shell scripting). - Familiarity with IIS Web Services, website management, or cloud-based environments. Success Metrics - Timely and accurate implementation of laboratory software platforms. - High-quality, customer-focused technical support and issue resolution. - Accurate, well-maintained documentation that supports long-term usability. - Continuous development of technical and domain expertise. Additional Details: Every individual at CareDx has a direct impact on our collective mission to improve the lives of organ transplant patients worldwide. We believe in taking great care of our people, so they take even greater care of our patients. Our competitive Total Rewards package for US Employees includes: - Competitive base salary and incentive compensation - Health and welfare benefits, including a gym reimbursement program - 401(k) savings plan match - Employee Stock Purchase Plan - Pre-tax commuter benefits - And more! - Please refer to our page to view detailed benefits at https://caredx.com/company/careers In addition, we have a Living Donor Employee Recovery Policy that allows up to 30 days of paid leave annually to a full-time employee who makes the selfless act of donating an organ or bone marrow. With products that are making a difference in the lives of transplant patients today and a promising pipeline for the future, it’s an exciting time to be part of the CareDx team. Join us in partnering with transplant patients to transform our future together. CareDx, Inc. is an Equal Opportunity Employer-vets/disabled, and participates in the E-Verify program. By proceeding with our application and submitting your information, you acknowledge that you have read our U.S. Personnel Privacy Notice and consent to receive email communication from CareDx. ***We do not accept resumes from headhunters, placement agencies, or other suppliers that have not signed a formal agreement with us.*** Certain jurisdictions require notice of how we use and protect your personal information. For more information, please read our Privacy Policy #LI-Remote This is the anticipated base salary range in the United States. The final salary offered to a successful candidate will be dependent on several factors that may include, but are not limited to, the type and length of experience within the job, the type and length of experience within the industry, education, etc. Base pay is one part of the Total Package that is provided to compensate and recognize employees for their work, and this role may be eligible for additional discretionary bonuses/incentives and restricted stock units. CareDx is a multi-state employer, and this salary range may not reflect positions that work in other states. Remote: US only roles $62,000—$77,500 USD

• Accountable for the functional integrity and day to day stability of Microsoft Dynamics NAV/Business Central. • Own ERP behavior across inventory, order-to-cash, purchasing, fulfillment, and posting workflows. • Serve as primary systems partner to Accounting and Operations, ensuring inventory valuation, shipment confirmations, and invoice generation remain accurate and timely. • Act as system owner across ERP, internal OMS (homegrown order orchestration platform), EDI transactions, and 3PL integrations. • Monitor and resolve live operational issues including posting errors, inventory mismatches, shipment discrepancies, delayed ship confirms, and invoice variances. • Own EDI outcomes and prioritization (850 / 940 / 945 / 856 / 810). Day-to-day mapping handled by a dedicated EDI specialist. • Coordinate and prioritize work across internal technical resources, contractors, and external partners as needed. • Investigate root causes end to end before escalating to Engineering or external partners. • Define practical guardrails that protect inventory and financial accuracy while supporting operational throughput.

• Lead the system administration, roadmap management, and architectural evolution of the Workday Adaptive Planning platform. • Design and maintain complex financial models, dashboards, and templates to support the Annual Operating Plan (AOP) and rolling forecasts. • Manage data integration and flow between Adaptive Planning and external systems like NetSuite using APIs, OfficeConnect, and ETL tools. • Automate FP&A workflows and provide technical support and training to global platform users.

Overview As a Senior Systems Engineer you will be responsible for resolving escalated service issues, coaching other engineers to resolutions, engineering and implementing complex projects, and for maintaining and overseeing the technology of their assigned areas. This includes VMWare, Windows, and Linux environments. A successful candidate will have the demonstrated ability to adapt to evolving requirements, devise innovative solutions in dynamic environments, work in high-pressure environments, collaborate effectively with diverse teams, and maintain focus on delivering secure and optimized application traffic solutions. We are looking for an individual with a Level III Engineer mindset—someone who takes ownership, operates at a strategic level, and delivers robust, scalable solutions in complex technical ecosystems. Responsibilities - Works with project team to plan and engineer the organization's systems infrastructure utilizing extensive experience. Ensure that the various components of the enterprise infrastructure architecture are consistent and coherent, designed at an appropriate level of detail, and that changes are controlled so as to maintain consistency. Serve as a subject matter expert for infrastructure architectural frameworks, methods and tools. - Perform a variety of complicated tasks such as implementation or upgrade of designed hardware and software solutions. Works both independently and coordinates the activities of System Administrators, DBA's and development teams. - Troubleshoot performance and technical issues with systems infrastructure. Assist development team with troubleshooting application and systems performance issues. Advise on performance and monitoring tools. - Perform infrastructure operations tasks such as log reviews, monitoring systems, alert response and on-call rotation. - 3+ Years of experience with Certificate management. - 3+ Years of experience with Load balancer administration. - Strong TCP/IP Stack knowledge and troubleshooting capabilities. - Completes all responsibilities as outlined on annual Performance Plan. - Completes all special projects and other duties as assigned. - Must be able to perform duties with or without reasonable accommodation. This job description is intended to describe the general nature and level of work being performed and is not to be construed as an exhaustive list of responsibilities, duties and skills required. This job description does not constitute an employment agreement and is subject to change as the needs of Cotiviti and requirements of the job change. Qualifications - Bachelor’s degree in MIS, computer science, or 4+ years related work experience required. - A blended 8+ years architecture, engineering, implementing and administering highly available web server, application server, networking and storage infrastructures required. - A deep working knowledge VMware, Windows, .Net, Java, SAN and databases required. - Experienced in networking, DNS, firewalls and load balancing technologies required. - Manage and modernize core infrastructure services such as Active Directory, Group Policy, DNS, DHCP, and PKI. - Experience in Linux, Hadoop and Big Data technologies a plus. - Minimum of 3 years mentoring and directing the work of other systems administrators and/or engineers. - Outstanding written and verbal communication skills are required. Strong time management skills, including the ability to work independently and balance daily operations and projects. - Ability to independently prioritize and re-prioritize tasks required. Ability to perform multiple tasks at one time, required. Ability to work as a team lead, and assist in any IT area is required. - Ability to occasionally work early, late or on weekends as work demands is required. - Solid foundation with security principles including HIPAA and SOX compliance preferred. Cognitive/Mental Requirements: - Communicating with others to exchange information. - Problem-solving and thinking critically. - Completing tasks independently. - Interpreting data. - Making timely decisions in the context of a workflow. - Maintaining focus. - Assessing the accuracy, neatness and thoroughness of the work assigned. - Learning new tasks and completing tasks in situations that have a speed or productivity quota. - Remembering and adhering to processes and protocols. Physical Requirements and Working Conditions: - Remaining in a stationary position, often standing or sitting for prolonged periods. - Communicating with others to exchange information. - Repeating motions that may include the wrists, hands and/or fingers. - Assessing the accuracy, neatness and thoroughness of the work assigned. - No adverse environmental conditions expected. - Must be able to provide high-speed internet access/connectivity and office setup and maintenance. - Must be able to provide a dedicated, secure work area. Base compensation ranges from $115,000 to $150,000 per year. Specific offers are determined by various factors, such as experience, education, skills, certifications, and other business needs. This role is eligible for discretionary bonus consideration Cotiviti offers team members a competitive benefits package to address a wide range of personal and family needs, including medical, dental, vision, disability, and life insurance coverage, 401(k) savings plans, paid family leave, 9 paid holidays per year, and 17-27 days of Paid Time Off (PTO) per year, depending on specific level and length of service with Cotiviti. For information about our benefits package, please refer to our Careers page. Since this job will be based remotely, all interviews will be conducted virtually. Date of posting: 11/06/2025 Applications are assessed on a rolling basis. We anticipate that the application window will close on 01/06/2026, but the application window may change depending on the volume of applications received or close immediately if a qualified candidate is selected. #LI-REMOTE #LI-AK1 #senior