I am a detail-oriented and innovative Software Engineer with a strong foundation in full-stack development, data structures, and modern frameworks including the MERN stack. I am adept at building scalable, high-performance applications with clean, maintainable code and enjoy collaborating across cross-functional teams to troubleshoot complex issues and deliver solutions that align with business goals. With years of experience working mainly in government and public sector IT modernization projects, I am passionate about continuous learning and applying new technologies to solve real-world problems. I'm eager to bring my technical expertise and creative thinking to a dynamic development team.

Leopoldo Reyes Carballo

I am a detail-oriented and innovative Software Engineer with a strong foundation in full-stack development, data structures, and modern frameworks including the MERN stack. I am adept at building scalable, high-performance applications with clean, maintainable code and enjoy collaborating across cross-functional teams to troubleshoot complex issues and deliver solutions that align with business goals. With years of experience working mainly in government and public sector IT modernization projects, I am passionate about continuous learning and applying new technologies to solve real-world problems. I'm eager to bring my technical expertise and creative thinking to a dynamic development team.

Available to hire

I am a detail-oriented and innovative Software Engineer with a strong foundation in full-stack development, data structures, and modern frameworks including the MERN stack. I am adept at building scalable, high-performance applications with clean, maintainable code and enjoy collaborating across cross-functional teams to troubleshoot complex issues and deliver solutions that align with business goals.

With years of experience working mainly in government and public sector IT modernization projects, I am passionate about continuous learning and applying new technologies to solve real-world problems. I’m eager to bring my technical expertise and creative thinking to a dynamic development team.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
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Language

English
Advanced
Spanish; Castilian
Advanced

Work Experience

Full Stack Software Engineer at IBM Consulting – Washington, D.C.
January 1, 2023 - Present
Oversaw system administration, application development, and production support for a complex government permitting system based on the Accela Civic Platform for the Department of the Treasury. Collaborated with vendors and clients to address system enhancement requests, troubleshoot issues, and deploy software upgrades. Developed custom applications in Java and Spring Boot to enhance enterprise functionality. Deployed Accela upgrades and integrated systems such as ADS, Pay.gov, and Accela Citizen Access. Supported incidents and defects via Salesforce, Jira, and conferencing tools. Installed Crystal Reports and provided end-to-end support for reporting and interface enhancements.
Full Stack Software Engineer at Octo Consulting – Washington, D.C.
December 31, 2022 - August 1, 2025
Led full stack development and system administration of a key government permitting application for the Department of the Treasury. Managed scripting, data integration, bug resolution, and bridged client needs with vendor capabilities. Administered and enhanced the Enterprise Permitting System using Accela tools and Salesforce Service Cloud. Created and customized Accela scripts and functions to meet evolving client needs. Collaborated with clients and vendors on defect resolution and feature enhancements. Provided tiered production support and issue resolution using TrackIt and Jira. Participated in Agile development and troubleshooting sessions to streamline digital permitting.
Senior Software Engineer / System Integrator at Peraton – San Diego, CA
April 1, 2022 - August 1, 2025
Technical lead in modernizing legacy permitting and civic engagement systems for County of San Diego departments. Led full-stack development, interface design, database integration, and infrastructure upgrades. Integrated Accela Civic Platform with external systems including Oracle EBS, Kronos, and Documentum. Developed backend solutions using Java, .NET, and Oracle DBMS for government permit systems. Designed and deployed AWS CloudFormation templates and enhanced automation tools. Created and maintained scripts, stored procedures, and custom interfaces for seamless operations. Managed enterprise-level system upgrades and payment gateway integration with Heartland.
Senior Consultant / Technical Lead at CGI Technologies & Solutions – San Diego, CA
March 1, 2018 - August 1, 2025
Supported City of San Diego’s Accela-based permitting infrastructure (Department of Special Events). Served as Accela subject matter expert and lead consultant. Configured Accela Citizen Access and Automation modules and supported third-party integrations. Mentored team members on best practices and Accela implementation strategies. Co-managed ServiceNow for SaaS platform operations and escalated vendor issues. Enhanced business intelligence with custom Crystal Reports for enterprise reporting.
Senior Software Engineer / System Integrator at HP Enterprise Services – San Diego, CA
April 1, 2016 - August 1, 2025
Led system modernization for County of San Diego departments, transitioning from legacy Oracle Forms to modern web applications. Delivered full-stack solutions in Java, .NET, and Oracle across complex permitting and public-facing systems. Created 40+ Oracle reports and 30+ event scripts to automate business functions within Accela. Built and deployed web applications such as AutoUploader and FirstResponder using APIs and third-party tools. Integrated PayPal, Qmatic, and other vendor APIs with public sector systems for real-time service delivery. Administered JBoss and IIS web servers, and led system migration and tuning initiatives.
Full Stack Software Engineer at IBM Consulting – Washington, D.C.
January 1, 2023 - Present
Served as a Full Stack Software Engineer overseeing system administration, application development, and production support for a complex government permitting system based on the Accela Civic Platform for the Department of the Treasury. Collaborated with vendors and clients to address system enhancement requests, troubleshoot issues, and deploy software upgrades. Major contributions included development of custom applications in Java and Spring Boot, deployment of Accela upgrades, integration with systems such as ADS, Pay.gov, and Accela Citizen Access, support of application incidents, and installation/maintenance of Crystal Reports.
Full Stack Software Engineer at Octo Consulting – Washington, D.C.
December 31, 2022 - August 1, 2025
Led full stack development and system administration of a government permitting application for the Department of the Treasury, including scripting, data integration, bug resolution, and bridging client needs with vendor capabilities. Administered and enhanced the Enterprise Permitting System using Accela tools and Salesforce Service Cloud, created customized Accela scripts, collaborated on defect resolution and feature enhancements, provided production support, and participated in Agile development and troubleshooting sessions.
Senior Software Engineer / System Integrator at Peraton – San Diego, CA
April 30, 2022 - August 1, 2025
Technical lead modernizing legacy permitting and civic engagement systems for County of San Diego departments. Responsibilities ranged from full-stack development to infrastructure upgrades, including systems integration with Oracle EBS, Kronos, and Documentum. Developed backend solutions using Java, .NET, and Oracle DBMS, designed and deployed AWS CloudFormation templates, created automation tools, maintained scripts and interfaces, and managed payment gateway integrations.
Senior Consultant / Technical Lead at CGI Technologies & Solutions – San Diego, CA
March 31, 2018 - August 1, 2025
Supported City of San Diego’s Accela-based permitting infrastructure including architectural guidance, project estimation, and mentoring for software rollouts. Served as the Accela subject matter expert, configured Accela Citizen Access and Automation modules, supported third-party integrations, co-managed ServiceNow platform operations, and enhanced business intelligence reports.
Senior Software Engineer / System Integrator at HP Enterprise Services – San Diego, CA
April 30, 2016 - August 1, 2025
Led system modernization projects for County of San Diego departments, transitioning legacy Oracle Forms to modern web applications. Delivered full-stack solutions in Java, .NET, and Oracle; created numerous Oracle reports and event scripts to automate business functions; built and deployed web applications via APIs; integrated third-party payment APIs; administered web servers; and led system migration and tuning.
Senior Software Engineer / System Integrator at Attain LLC, San Diego, CA
May 31, 2011 - August 1, 2025
Senior Web Master & Developer at Sony – Baja California, Tijuana, BC, Mexico
January 31, 2008 - August 1, 2025
Java Web Developer at Zentrum Ziztemaz, Tijuana, BC, Mexico
February 28, 2005 - August 1, 2025
IT Director / CEO at REGOIT, Tijuana – San Diego
January 31, 2017 - August 1, 2025

Education

Doctorate at Southern University of Technology (UNISUR), México
January 1, 2014 - December 31, 2019
Master at Tijuana Institute of Technology (ITT), México
January 1, 2001 - December 31, 2004
Bachelor at San Andrés Tuxtla Higher Institute of Technology (ITSSAT), México
January 1, 1994 - December 31, 1999
Doctorate at Southern University of Technology (UNISUR), México
January 1, 2014 - December 31, 2019
Master at Tijuana Institute of Technology (ITT), México
January 1, 2001 - December 31, 2004
Bachelor at San Andrés Tuxtla Higher Institute of Technology (ITSSAT), México
January 1, 1994 - December 31, 1999

Qualifications

IBM Certified Advocate - Cloud v2
January 1, 2023 - December 31, 2023
IBM Certified Technical Advocate - Cloud v5
January 1, 2023 - December 31, 2023
IBM Certified Advocate Plus - Cloud v2
January 1, 2023 - December 31, 2023
Accela Bronze Certified Implementation Professional
January 1, 2023 - December 31, 2023
Accela Scripting 3.0
January 1, 2023 - December 31, 2023
ServiceNow System Administrator
January 1, 2023 - December 31, 2023
Certified Chamilo Portal Assistant
January 1, 2023 - December 31, 2023
Certified Chamilo LMS Course Builder
January 1, 2023 - December 31, 2023
IBM Certified Advocate - Cloud v2
January 1, 2022 - December 31, 2022
IBM Certified Technical Advocate - Cloud v5
January 1, 2022 - December 31, 2022
IBM Certified Advocate Plus - Cloud v2
January 1, 2022 - December 31, 2022
Accela Bronze Certified Implementation Professional
January 1, 2022 - December 31, 2022
Accela Scripting 3.0
January 1, 2022 - December 31, 2022
ServiceNow System Administrator
January 1, 2022 - December 31, 2022
Certified Chamilo Portal Assistant
January 1, 2022 - December 31, 2022
Certified Chamilo LMS Course Builder
January 1, 2022 - December 31, 2022

Industry Experience

Government, Professional Services, Software & Internet, Financial Services, Education