John Medina

Lead Software Architect for enterprise election management systems, serving state and county governments across the United States. Responsible for security architecture, system design, and technical leadership for mission-critical infrastructure. KEY ACHIEVEMENTS: - Architected and implemented security frameworks for election systems processing 1M+ voter records with zero security incidents - Led vulnerability assessment initiatives identifying and remediating critical security vulnerabilities across distributed systems - Optimized batch processing performance from 8+ hours to 30 minutes through architectural improvements and database optimization - Designed and implemented microservices architecture supporting real-time voter registration and ballot processing - Led team of 5+ developers in agile environment delivering features under strict regulatory compliance requirements TECHNICAL FOCUS: - Security: Vulnerability assessment, penetration testing, secure API design, authentication/authorization (JWT, OAuth) - Backend: Spring Boot (Java), microservices, RESTful APIs, PostgreSQL - Frontend: Angular, responsive web applications - DevOps: Git, CI/CD pipelines, Docker - Architecture: Event-driven systems, distributed databases, high-availability design

Senior Software Developer for major financial institution, specializing in secure API development and microservices architecture for banking applications serving millions of customers. KEY ACHIEVEMENTS: - Developed and secured RESTful APIs for core banking operations handling sensitive financial transactions - Implemented security best practices including OWASP Top 10 vulnerability mitigation - Designed microservices using Spring Boot with comprehensive security controls and audit logging - Optimized database queries (PostgreSQL) improving API response times by 40% - Conducted code reviews focusing on security vulnerabilities and architectural improvements TECHNICAL STACK: - Backend: Spring Boot (Java), microservices architecture, RESTful APIs - Security: API security, authentication/authorization, secure coding practices, OWASP compliance - Database: PostgreSQL, complex query optimization, stored procedures - Tools: Git, Maven, Docker, Postman - Methodologies: Agile/Scrum, test-driven development

Technical Team Lead responsible for secure software development and technical leadership for a team of developers delivering enterprise solutions. KEY ACHIEVEMENTS: - Led technical team implementing secure development practices and code review processes - Developed RESTful APIs using Spring Boot and .NET Core 6 with emphasis on security controls - Implemented JWT authentication, authorization services, and secure CRUD operations - Mentored junior developers on secure coding practices and architectural patterns - Managed agile development processes ensuring quality delivery and security compliance TECHNICAL STACK: - Backend: Spring Boot (Java), .NET Core 6, RESTful APIs - Security: JWT authentication, secure API design, input validation - Frontend: Angular, responsive design - Tools: Git, Jira, AWS - Leadership: Team coordination, code reviews, technical mentoring

Senior Software Engineer & Technical Lead for banking sector clients including BCI and Santander, delivering secure financial applications with strict regulatory compliance requirements. KEY ACHIEVEMENTS: - Led development team of 12 developers delivering mission-critical banking applications - Architected full-stack solutions using Angular, Node.js, and .NET for high-traffic financial platforms - Implemented security frameworks ensuring compliance with banking regulations and data protection standards - Developed microservices architecture for API consumption across distributed banking systems - Established secure coding standards and conducted security-focused code reviews TECHNICAL STACK: - Frontend: Angular, JavaScript, responsive web applications - Backend: Node.js, .NET, RESTful API integration - Security: Banking security compliance, secure data handling, authentication/authorization - Tools: Git, agile methodologies, API testing (Postman, SoapUI) - Leadership: Team coordination, technical mentoring, project delivery

Full-Stack Software Developer delivering secure enterprise solutions for telecommunications and government sectors, with focus on system security and data protection. KEY ACHIEVEMENTS: - Developed secure enterprise applications handling sensitive telecommunications data - Implemented data protection measures and security controls for government systems - Built full-stack solutions using .NET, SQL Server, and modern web technologies - Designed and optimized complex database schemas and stored procedures (PL/SQL, T-SQL) - Delivered projects on time while maintaining high security and quality standards TECHNICAL STACK: - Backend: .NET (C#), ASP.NET, RESTful services - Database: SQL Server, Oracle (PL/SQL expert), complex query optimization, stored procedures - Frontend: JavaScript, HTML5, CSS3, responsive design - Security: Secure coding practices, data encryption, access control - Tools: Git, Visual Studio, SQL Server Management Studio