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I’m a Senior Software Engineer with 10+ years of experience building backend systems, APIs, microservices, and integrations using Java and Kotlin. I’m especially good at understanding complex systems, troubleshooting APIs, finding bugs, and turning requirements into working solutions. I also use AI-assisted development and advanced prompting to accelerate coding, debugging, testing, and problem-solving while keeping the technical quality under control. I’m open to project-based and part-time work, particularly backend development, API integrations, API testing, automation, AI-assisted development, and AI/LLM evaluation. I enjoy taking a problem, figuring out the best solution, and delivering something that actually works.

Ismayer Hernandez

Senior Software Engineer | APIs, Backend & AI-Powered Develo