Nathaniel Lubranicki

Responsible for the end-to-end integration of vendor data pipelines and software systems within Radancy's global SaaS ecosystem.

• Collaborated across internal technical teams and external ATS vendors to enable seamless data ingestion and mapping into job boards.
• Developed and maintained custom C#/.NET Razor-based tools and JavaScript logic for backend integration flows, handling ~70% of daily workload in backend development.
• Identified persistent job feed issues and designed remediation workflows using post-processing scripts and conditional parsing logic.
• Authored a custom ATS-friendly API endpoint solution that reduced job processing latency, retained a major enterprise account, and has since been used as a reusable pattern across multiple integrations.
• Assisted support engineers with resolving complex technical incidents by tracing malformed payloads, misconfigured mappings, and OAuth-related issues.
• Technologies Used: C#, .NET, Razor, JavaScript, REST APIs, JSON, XML, CSV, Microsoft SQL Server, various Applicant Tracking Systems (ATS), SaaS platforms.

Provided Level 3 escalation support for the Analysis and API components of SAP Ariba’s On-Demand procurement platform, acting as a bridge between support and engineering.

• Bridged communication between engineering and support teams, translating abstract user-submitted issues into actionable engineering tasks.
• Conducted in-depth debugging of Java-based stack trace logs using internal tools (OpenGrok, Splunk, Ops Inspector).
• Authored and submitted Jira defects for system-level bugs and offered pseudocode-based design suggestions to development teams.
• Facilitated client integration of Ariba Analysis into existing systems by guiding OAuth token-based authentication, SAML-based SSO, and API parameter mapping.
• Used SAP-provided containers to replicate production environments, simulate customer behavior, and validate edge-case defects.
• Technologies Used: Java, Splunk, Open-Grok, Ops Inspector (for AQL queries), Jira, Confluence, REST APIs, SOAP, SSO, SAML, OAuth, HTTP/HTTPS protocols.

Provided specialized technical support and product development for the SAP Ariba Contracts module, focusing on customer integrations and feature enhancements.

• Single-handedly managed over 100 service requests for the contracts module, resulting in new features for the reservation system.
• Guided multiple customers in integrating the Contract product into their OnDemand software using best practices for SSO and API.
• Supported API integrations for DocuSign and EchoSign for contract signature processes.
• Technologies Used: Java, S4/Hana, AQL, CXML, XML, JSON, DocuSign API, EchoSign API, SSO (IDP & SP SAML), Postman, SOAP UI.

Provided air, ground, space, and cyber security for nuclear and command & control missions, holding a Secret PRP Clearance.

• Maintained and operated radar detection systems, alarm systems, and secure communication equipment for mission-critical operations.
• Led teams in high-stakes environments, ensuring compliance with strict security and operational protocols.
• Technologies Used: Radar Systems, Alarm Monitoring Systems, Secure Communication Equipment, Command & Control (C2) Systems, Intelligence Surveillance Reconnaissance (ISR) platforms.

Served as the frontline IT and systems technician supporting the Puerto Rico lottery's digital infrastructure, from data centers to on-site event setups.

• Acted as the on-site PC/Network Technician for marketing events, responsible for setting up networks, running patch cables (RJ45), and configuring IP addresses for all event hardware.
• Repaired over 700+ lottery terminal units and assisted in physical installations across the island.
• Extracted data using UNIX batch processes and wrote reports based on daily draw results.
• Technologies Used: Unix, Linux (Red Hat), SQL, Shell/Batch Scripting, Telxon, Network hardware (routers, switches), IP configuration, Proprietary Lottery Hardware/Software.