Sep 2021 – Dec 2025 · 4 yrs 3 mos

• Led the design and delivery of scalable systems, modernizing applications using Java, Spring Boot, AWS, and containerized architectures. Directed CI/CD automation, improved production reliability, and strengthened system observability while leading cross-functional engineering teams. Leveraged AWS-native services including Elasticsearch/OpenSearch to enhance search performance and improve data accessibility across systems.

Feb 2021 – Apr 2021 · 2 mos

• Responsible for building and managing AWS cloud application and operations & maintenance teams of 12 members. Lead team in knowledge transfer, creating documentation, runbooks manuals for taking over IT Operations. Responsible for analysis, presentation and delivery of relevant technical solutions with focus on customer service and relationship.

Mar 2017 – Jan 2021 · 3 yrs 10 mos

• Delivered multiple enterprise initiatives across USPTO’s OAED, Trademark Systems Division, and Corporate Systems Division, including FAST1 and FAST2, by driving technical planning, coordinating cross-functional teams, and ensuring high-quality, on-time releases. Led day-to-day execution for Trademark applications, mentoring new team members, resolving legacy backlog issues, and improving overall system reliability.

Nov 2016 – Feb 2017 · 3 mos

• Served as the Infrastructure Lead for the FirstNet program, responsible for designing and building the project’s initial AWS cloud infrastructure to support application development and secure platform operations. Established core cloud services including IAM, EC2, EBS, S3, ELB, security groups, CloudWatch, and CloudTrail, ensuring a scalable and compliant foundation for future development. Implemented infrastructure-as-code practices using Packer and CloudFormation, enabling consistent, automated provisioning and reducing deployment time while improving operational reliability.

Nov 2014 – Nov 2016 · 2 yrs

• Led the migration of the USPTO Assignment Search system from AWS GovCloud to the AWS US-East public cloud, spearheading planning, architecture design, and end-to-end implementation. Built and managed an Agile delivery team, ensuring consistent execution, clear communication, and alignment across engineering, operations, and customer stakeholders. Developed nested CloudFormation templates to automate multi-environment stack creation, and used AWS Designer to architect VPCs, subnets, and secure cloud infrastructure. Troubleshot and resolved performance bottlenecks by optimizing Solr, Zookeeper, and Nginx configurations, significantly improving system responsiveness and reliability. Provided strong customer engagement, solution design support, and contributed to cloud-based proposal development, consistently demonstrating strong problem-solving, communication, and team leadership skills.

May 2013 – Nov 2014 · 1 yr 6 mos

• Led multiple modernization and migration initiatives across USPTO intranet systems, designing and implementing upgrade plans to move EBCIS, EFOIA, ESTTA, TTABVue, and AOTW from legacy Sun-One and IBM WebSphere servers to JBoss EAP platforms. Re-architected and rewrote applications using Spring MVC, Spring Data, and JPA/Hibernate, delivering cleaner, maintainable codebases and reducing technical debt, including a 40% reduction in code volume through streamlined Spring-JPA repository design. Developed prototypes, resolved complex performance issues involving Documentum repository integrations, and collaborated closely with engineering and platform support teams on clustered JBoss deployments. Delivered secure, stable modernization by implementing F5 load-balancer rate-limiting and IP whitelisting strategies to mitigate denial-of-service risks, aligning thresholds with business stakeholders. Across all systems, provided hands-on leadership in design, troubleshooting, and cross-team coordination to ensure smooth cutovers, operational reliability, and measurable improvements in application performance and maintainability.

Apr 2010 – May 2013 · 3 yrs 1 mo

• Led modernization and migration of critical USPTO patent systems—including Public/Private PAIR, FIU, PURM, and EPR—by re-architecting legacy IBM WebSphere Portal 6.1 applications onto JBoss EAP 5.1 platforms. Delivered major performance improvements, increasing PAIR responsiveness by 300% and doubling FIU throughput through deep troubleshooting, code optimization, and container-level tuning. Evaluated and implemented modern open-source frameworks such as SiteMesh, JCIFS, Struts, Spring, and Hibernate, applying strong OO principles and JEE best practices to improve maintainability and user experience. Designed and delivered enhancements for PURM based on examiner and business requirements, strengthening system reliability and workflow efficiency. Architected secure integration patterns for EPR, enabling retrieval of foreign reference documents from DMZ-hosted systems using JNLP, improving examiner access and operational continuity across patent data services.