Libi Samuel

Wylie,TX

Summary

Software Engineer with 20 years of extensive experience designing and modernizing enterprise database ecosystems, building services, and implementing secure, scalable integrations. Skilled in Oracle, PL/SQL, Spring Boot, and Linux automation, with a strong record of optimizing performance, ensuring compliance, and leading cross-functional technical initiatives. Team leader who can mentor junior developers, collaborate effectively with clients, communicate clearly.

Overview

years of professional experience

Work History

Software Engineer

DallasNews Corporation

01.2011 - Current

Serve as Senior Software and Database Engineer supporting enterprise-scale subscriber and data integration platforms. Designed, developed, and deployed multi-tier Spring Boot and PL/SQL applications supporting business operations and data pipelines. Worked within tight production schedules, managing multiple priorities to ensure reliable, high-quality system deliveries across internal and external environments.
Key Achievements:
Built an API for the Dallas Morning News user portal and IVR subscriber services.
Led large-scale database migrations across data centers, ensuring minimal downtime and seamless application integration.
Integrated Spring AI with local vector stores to build context-aware retrieval systems, improving LLM response accuracy through embedding-based prompt engineering.
Streamlined subscriber onboarding and access to the Dallas News e-edition by integrating backend services through Spring Boot and SOAP APIs, improving operational efficiency and reducing manual intervention
Managed AWS Data Pipeline workflows to automate Enterprise Data Warehouse (EDW) refresh processes, ensuring timely and reliable data availability.
Built APIs using SpringBoot and SQL.
Developed payment automation solutions integrating external gateways with enterprise databases.
Automated workflows on Linux servers with shell scripts, secure file transfers, and environment management.
Coordinated with infrastructure teams on failover tests, firewall rules, and DNS changes to maintain system reliability.
Acted as technical lead, aligning stakeholders across compliance, customer service, and operations to business objectives.
Performed extensive code design using PL/SQL and T-SQL, creating Stored Procedures, Functions, Triggers, Views, Cursors and other Database Logical Objects.
Performed as a Data Analyst. Created custom and Ad-hoc reporting for all phases of the company (internal and external statistics, revenue gathering, marketing analysis and technical logs).

Software Developer II/DBA Developer II

MBT Software

01.2004 - 09.2010

Served as Senior Software and Database Developer for suite of investment decision and analysis tools targeting the individual investor. Design, develop, and deploy professional client/server applications in multi-tiered environment for internal systems and client revenue systems. Worked within strict timeframes, managing multiple priorities to ensure timely, quality deliveries.
Key Achievements:
Re-designed and built numerous critical business systems including the company’s automated billing system. The billing system is responsible for collecting daily reoccurring revenues for products and services. Also re-architected company's commission system, email marketing systems, customer relations (CRM) systems, vendor/partner integrations. This was done utilizing C#, PL/SQL, T-SQL, ASP.NET, Visual Basic, .NET Windows services, and XML.
Involved in Unit and Integration Testing.
Performed as a Data Analyst. Created custom and Ad-hoc reporting for all phases of the company (internal and external statistics, revenue gathering, marketing analysis, sales commissions, and technical logs).

Education

BS - Computer Science

Texas Tech University

Lubbock, TX

12.2003

Skills

Platforms: Windows (32-bit and 64-bit architectures), Linux, Solaris, UNIX, VMware

Programming: Java, Spring, Rest, SOAP, Tomcat, Camel, PL/SQL, T-SQL, Visual Basic, VHDL, SQL, Shell Scripting

Areas of Expertise

Software Development Life Cycle (SDLC)
Database Designer/Developer
Web / e-Commerce Systems
Requirements Gathering / Authoring
Troubleshooting & Analysis
Project Management
Leadership & Mentoring
User Training and Support
Cross-functional Collaboration

Timeline