• Led or facilitated development on multiple enterprise applications (FAI, TDF, and more)• Tech stack: Java/Spring, AWS (DynamoDB, Lambda, SNS/SQS, RDS, EC2/Fargate, S3, CloudFront), GraphQL, Lit, Angular, GitLab CI/CD, Splunk, Apigee, and more.• Overhauled merge request, git branching strategy, and code release processes to ensure consistent quality of task description and test evidence, git repository tagging, and dynamic change log generation.• Go-to developer to help mitigate risks, tackle complex problems and blockers, and address infrastructure and architectural concerns.• Spearheaded the migration of our project’s Apigee proxies as part of the firm’s transition from on-premises to cloud environments, addressing incompatibilities and ensuring minimal disruption.• Mentored junior developers to help them learn and grow and enhancing team productivity.

• Led the design and development of an API that supplies data to validate a target data model.• Used Spring Boot, OpenAPI/SwaggerHub, Webflux, EMR/Spark, MapStruct, Finbourne Lusid, Apache POI, and others.• Designed, developed and maintained the Hadron project for data ingestion, transformation and storage from various sources, providing a front-end and APIs for data querying.• Collaborated closely with the project architect and contributed to the analysis and design of architectural, infrastructural and framework aspects of the system.• Played a key role in the EMR/Spark solution, including specification, performance improvement, failure resolution and effective metric collection.• Point person for data reconciliation integration with the firm’s Jackpot product and DUCO.• Enhanced the dependency manager component, which was critical in resolving several performance bottlenecks.

• Designed a dashboard component to display health status on the infrastructure team’s SharePoint home page. Utilized Vue.js, JavaScript and Python on a Linux back-end.• Created or updated architecture, connectivity, messaging and data flow diagrams using Microsoft Visio. Communicated with various teams to gather input.• Supported the provision, migration and decommissioning of various servers and systems.• Integration with Vault by HashiCorp for account security and authentication.• Analysis of server filesystem usage for archiving, compression and purging to manage free space. Communicated with various parties to determine file archiving policy requirements.

• Architected and designed the CQM Aligned Population Health Reporting (CAliPR) solution for CRISP, a regional health information exchange• Health IT solutions using Java 8, Spring Boot, Spring MVC/REST, Liferay Portal, PostgreSQL, SQL Server, H2, Angular 4, Gradle, Jenkins CI, GitLab, Junit/Mockito, Apache POI• Integrated the product as a Liferay Portlet for single sign-on (SSO) and role-based access control, deployed on the CRISP Unified Landing Page (ULP).• Designed and implemented a calculation engine for Clinical Quality Measures (CQMs) specified in Health Quality Measure Format (HQMF). Integrated CQM reporting with the Maryland Department of Health’s eMIPP system via REST web service.• Participated in proposal development and level of effort (LOE) estimation• Led certification of CAliPR with the ONC Health IT Certification Program for two versions• Designed a repository for patient clinical data from CDA/ADT and various HL7 formats, and perform code mappings where required• Guided automation engineer in creating automated regression tests with Selenium Webdriver

• Architect, design and maintenance of a Health IT solution for the EHR Incentive Program of the Health Information Technology for Economic and Clinical Health Act (HITECH) for the Centers for Medicare & Medicaid Services (CMS).• An aggressive and complex system with overlapping quarterly release cycles, handling registrations and Meaningful Use Attestations of hundreds of thousands of providers and initiated incentive payments in the tens of billions of dollars.• Involved in the successful transition of modules developed by another contractor• Lead the selection of technology stack, including IBM Websphere, Spring, Spring Batch, Spring Integration, iBatis, JiBX, ILOG JRules/WODM (rule engine), and others• Designed the Receipt and Control module using Spring Batch and Spring Integration. This handled scheduling and process flow of batch processes utilized in HITECH, and had capabilities including multi-threading, failure recovery and the ability to restart failed jobs.• Developed skeleton code for JUnit testing with mock/stub objects and an in-memory database• Provided input on code reviews, release management, and continuous integration builds• Estimated LOE for Change Requests using PERT and Function Point methodologies• Was involved in load and performance testing to determine ideal settings and sizing of resources• Acted as liaison with other teams for file transfers with outside systems.

Java Design & Development using JBoss, Struts, EJB, Dojo AJAX Toolkit, JSON/RPC, JSP/JSTL, Java EE (J2EE), HTML/Javascript, Web Services, JasperReports and JDBC with Oracle. • Designed and implemented a browser-based system for Arbitron’s radio station lineups using Dojo AJAX Toolkit, Struts and EJB.• Evaluated Web Service implementations and retrofitted applications to use JBoss Cache.• Implemented JUnit and Fitnesse tests.

Java Design & Development using Weblogic, Servlets, EJBs, JSP/JSTL, Hibernate, Spring, J2EE, HTML/Javascript and JDBC with Oracle on the Windows and Solaris platforms. • Developed a browser-based system for Ad-Hoc Data Extraction and Reporting for CMS• Implemented a Hibernate/Middlegen layer for data access and guided team on its use.• Designed application workflow functionality and constructed Ant scripts for builds.

Implementation of Property Management Software using Java, JDBC, XML and Servlets.

Developed web servlets and designed a caching system