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Hi, I’m José Alberto Callejas López, a senior software engineer and technical leader with over 10 years of experience designing systems, building products, fixing complex issues, and mentoring engineers. I’ve worked across Edtech, Health care, Fintech, environmental platforms, and consumer apps. I have a strong full-stack background, including algorithms, AI, web, mobile, and system architecture. I’ve led AI-powered learning platforms, ERP systems for manufacturing, and data-intensive business apps, and I’m known for turning real-world business and health care needs into scalable, maintainable, production-ready systems while guiding teams across multiple regions. I enjoy integrating AI into web and mobile applications, building products from scratch to finish, and diving into critical bugs when things break. I always focus on clean algorithms, solid architecture, and long-term reliability. ICPC experience influences my approach to solution design. Skills and tech I love to work with span frontend, backend, cloud, and data pipelines. I’m comfortable with React, Next.js, TypeScript, Python, and Django, and I frequently design secure APIs and scalable databases (PostgreSQL, Redis, MongoDB). I’m passionate about building AI-powered features, ML workflows, and end-to-end architectures that enable teams to ship reliable software across web and mobile platforms.…Hi, I’m José Alberto Callejas López, a senior software engineer and technical leader with over 10 years of experience designing systems, building products, fixing complex issues, and mentoring engineers. I’ve worked across Edtech, Health care, Fintech, environmental platforms, and consumer apps. I have a strong full-stack background, including algorithms, AI, web, mobile, and system architecture. I’ve led AI-powered learning platforms, ERP systems for manufacturing, and data-intensive business apps, and I’m known for turning real-world business and health care needs into scalable, maintainable, production-ready systems while guiding teams across multiple regions. I enjoy integrating AI into web and mobile applications, building products from scratch to finish, and diving into critical bugs when things break. I always focus on clean algorithms, solid architecture, and long-term reliability. ICPC experience influences my approach to solution design. Skills and tech I love to work with span frontend, backend, cloud, and data pipelines. I’m comfortable with React, Next.js, TypeScript, Python, and Django, and I frequently design secure APIs and scalable databases (PostgreSQL, Redis, MongoDB). I’m passionate about building AI-powered features, ML workflows, and end-to-end architectures that enable teams to ship reliable software across web and mobile platforms.

José Alberto Callejas López

Full Stack Developer, Project Manager, AI Engineer, +3

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Hi, I’m José Alberto Callejas López, a senior software engineer and technical leader with over 10 years of experience designing systems, building products, fixing complex issues, and mentoring engineers. I’ve worked across Edtech, Health care, Fintech, environmental platforms, and consumer apps. I have a strong full-stack background, including algorithms, AI, web, mobile, and system architecture. I’ve led AI-powered learning platforms, ERP systems for manufacturing, and data-intensive business apps, and I’m known for turning real-world business and health care needs into scalable, maintainable, production-ready systems while guiding teams across multiple regions. I enjoy integrating AI into web and mobile applications, building products from scratch to finish, and diving into critical bugs when things break. I always focus on clean algorithms, solid architecture, and long-term reliability. ICPC experience influences my approach to solution design. Skills and tech I love to work with span frontend, backend, cloud, and data pipelines. I’m comfortable with React, Next.js, TypeScript, Python, and Django, and I frequently design secure APIs and scalable databases (PostgreSQL, Redis, MongoDB). I’m passionate about building AI-powered features, ML workflows, and end-to-end architectures that enable teams to ship reliable software across web and mobile platforms.…Hi, I’m José Alberto Callejas López, a senior software engineer and technical leader with over 10 years of experience designing systems, building products, fixing complex issues, and mentoring engineers. I’ve worked across Edtech, Health care, Fintech, environmental platforms, and consumer apps. I have a strong full-stack background, including algorithms, AI, web, mobile, and system architecture. I’ve led AI-powered learning platforms, ERP systems for manufacturing, and data-intensive business apps, and I’m known for turning real-world business and health care needs into scalable, maintainable, production-ready systems while guiding teams across multiple regions. I enjoy integrating AI into web and mobile applications, building products from scratch to finish, and diving into critical bugs when things break. I always focus on clean algorithms, solid architecture, and long-term reliability. ICPC experience influences my approach to solution design. Skills and tech I love to work with span frontend, backend, cloud, and data pipelines. I’m comfortable with React, Next.js, TypeScript, Python, and Django, and I frequently design secure APIs and scalable databases (PostgreSQL, Redis, MongoDB). I’m passionate about building AI-powered features, ML workflows, and end-to-end architectures that enable teams to ship reliable software across web and mobile platforms.

Available to hire

Hi, I’m José Alberto Callejas López, a senior software engineer and technical leader with over 10 years of experience designing systems, building products, fixing complex issues, and mentoring engineers. I’ve worked across Edtech, Health care, Fintech, environmental platforms, and consumer apps. I have a strong full-stack background, including algorithms, AI, web, mobile, and system architecture. I’ve led AI-powered learning platforms, ERP systems for manufacturing, and data-intensive business apps, and I’m known for turning real-world business and health care needs into scalable, maintainable, production-ready systems while guiding teams across multiple regions. I enjoy integrating AI into web and mobile applications, building products from scratch to finish, and diving into critical bugs when things break. I always focus on clean algorithms, solid architecture, and long-term reliability. ICPC experience influences my approach to solution design.

Skills and tech I love to work with span frontend, backend, cloud, and data pipelines. I’m comfortable with React, Next.js, TypeScript, Python, and Django, and I frequently design secure APIs and scalable databases (PostgreSQL, Redis, MongoDB). I’m passionate about building AI-powered features, ML workflows, and end-to-end architectures that enable teams to ship reliable software across web and mobile platforms.