Location: Remote (U.S. overlap preferred) Type: Contract (Full-Time Preferred) Domain: Payments / Fintech / eCommerce Infrastructure About the Project We are leading a modernization initiative for a high-growth digital commerce platform focused on payment orchestration, gateway optimization, and API-driven architecture. Experience with orchestration platforms such as Gr4vy, Stripe, etc. is highly desirable, but not required. Deep payments experience is mandatory. About the Role We are seeking a senior backend engineer to support a payment modernization initiative. You will work directly under the CTO to build and integrate payment orchestration systems and direct PSP connections. Responsibilities - Build and maintain API integrations with multiple PSPs - Implement payment routing logic - Develop webhook handlers - Implement tokenization flows - Support subscription billing logic - Ensure resilience, observability, and clean error handling

• Architect and lead end-to-end payment orchestration strategy • Design multi-PSP routing logic and failover systems • Lead integration from gateway abstraction to direct acquirer connections • Oversee token migration and vault strategy • Ensure PCI-compliant design and security best practices • Guide backend and DevOps engineers through execution

Location: Remote (U.S. overlap preferred) Type: Contract (Full-Time Preferred) Domain: Payments / Fintech / eCommerce Infrastructure About the Project We are leading a modernization initiative for a high-growth digital commerce platform focused on payment orchestration, gateway optimization, and API-driven architecture. This role will architect and lead integration efforts involving: - Payment gateway orchestration - Tokenization strategy - Direct PSP integrations - Subscription billing logic - Checkout modernization without disruption Experience with orchestration platforms such as Gr4vy, Stripe, etc. is highly desirable, but not required. Deep payments architecture experience is mandatory. What You’ll Do - Architect and lead end-to-end payment orchestration strategy - Design multi-PSP routing logic and failover systems - Lead integration from gateway abstraction to direct acquirer connections - Oversee token migration and vault strategy - Ensure PCI-compliant design and security best practices - Guide backend and DevOps engineers through execution What Success Looks Like - Clean abstraction layer across PSPs - Reduced payment friction - Improved authorization rates - Modernized checkout infrastructure

Integrity Management Services, Inc. (IntegrityM) is a woman-owned small business specializing in assisting government healthcare organizations prevent and detect fraud and abuse in their programs. At IntegrityM, we offer a culture of opportunity, recognition, and collaboration. We thrive off of these fundamental elements that make IntegrityM a great place to work. We offer the flexibility our employees need to challenge themselves and focus on advancing their professional development and careers. Large company perks. Small company feel. www.integritym.com In this role, the Statistician with guidance from the Senior Data Analyst or Sr. Statistician and Mangers will provide analytical and statistical data support utilizing statistical software. Statistician possesses a statistical education background and general knowledge of health care systems, basic computer and software skills, and ability to accomplish all delegated tasks achieving Integrity Management Services business goals producing high quality deliverables to our clients. Statistician works independently as well as collaboratively with Data Analysis team. Job Responsibilities:   Works with databases performing functions including data cleaning and maintenance; extracting data, importing/exporting data into various formats.   Perform complex statistical analyses of Medicare Fee-For-Schedule (FFS) Durable Medical Equipment, Prosthetics, Orthotics, and Supplies (DMEPOS) claims data and create reports on trends, significant changes and other relevant factors.   Creates materials that aid in illustrating analytics/data findings.   Compiles, verifies, and interprets data to guide departmental efforts.   Conduct quantitative and qualitative data mining and statistical analyses: ·        Uses SAS, MS Access, and Excel. ·        Performs data analysis to create summaries and result tables. ·        Runs summary statistics. ·        Conducts research relevant to the analysis being done. ·        Refines database queries to generate subsets of databases and tables. ·        Creates clear, concise, and complete materials including but not limited to reports, memos and/or data files for submission to the client. ·        Create project presentations at the request of manager and other stakeholders.                             Communicates with technical and non-technical end users, providing clear explanation of procedures used and results obtained from data analysis tasks.    Provides analytical support for internal quality reviews, audits, and client inquiries, including validating results and responding to data-related questions.   Seeks opportunities for additional training to improve skills necessary to perform job responsibilities.   Leads and/or participates in team projects and brainstorming sessions to assess various methodologies for study designs.   Remains informed regarding industry changes, trends, best practices and applicable regulations and assesses impact of changes on the project.   Performs ad hoc tasks/duties as assigned.   Ensures compliance with all applicable privacy and security training requirements (both IntegrityM and external/client-based), whether on an annual or ad/hoc basis. Please note: certain position levels (leads, managers, directors or higher) may require additional “role-based” training to ensure compliance with applicable privacy and security requirements.   Exercises appropriate discretion and independent judgment relating to company policies and practices in an effective, consistent and professional manner.   Adheres to applicable policies ensuring commitment to quality, compliance and security to protect the confidentiality, integrity, and availability of sensitive data and information.   Adheres to all IntegrityM and/or client privacy and security protocols governing sensitive and/or business confidential information.