Clean Architecture
Building scalable and maintainable applications through well-structured code, modular design, and best development practices.
User-Centered Design
Creating intuitive and responsive interfaces focused on usability, accessibility, and real user needs.
High Performance
Optimizing applications for speed, scalability, and smooth user experiences across web and mobile platforms.
Collaboration & Agile
Working effectively with cross-functional teams using agile methodologies to deliver high-quality products.
I Build Scalable Digital Products
Software engineer focused on building reliable and scalable digital solutions. I enjoy transforming complex ideas into clear, functional, and user-focused products.
My work is driven by strong attention to detail, performance, and usability, ensuring that every solution is efficient, maintainable, and designed to create real value.
Name
Age
Occupation
Nikollai Hernández
29 Years
Software Engineer
Language
Email
Nationality
Spanish / English
nikollaihernandez@gmail.com
Colombia
Building Reliable Digital Products
I build digital products that are reliable, scalable, and user-focused. Every project is approached with a strong emphasis on quality, performance, and long-term maintainability.
Years of
Experience
Projects
Delivered
Technologies
Mastered
Users
Impacted
My Recent Works
Mobile Banking App
Health Management Platform
Operational Control Platform
Smart Maintenance AI
My Experience
Front-End Engineer
COHNECTI S.A.S.
React Native developer for a secure, production-grade banking application. Integrated Apple Wallet for digital card provisioning and collaborated with cross-functional teams to deliver scalable and compliant solutions.
Front-End Engineer (US Client)
MEDRAR S.A.S.
Delivered cross-platform mobile applications for U.S. healthtech clients using React Native, ensuring high performance and maintainability. Integrated Apple HealthKit and Google Fit for secure health data synchronization and implemented real-time features with push notifications to enhance user engagement.
Full-Stack Developer
MUNDOCOMPUTO
Built web applications using MVC architecture in CodeIgniter, ensuring maintainable and structured development. Implemented secure multi-gateway payment integrations and designed relational databases with stored procedures and triggers to maintain data consistency and performance.
My Education
Diploma In Software Architecture
Pontificia Universidad Javeriana
Software Engineering
Politécnico Grancolombiano
Development of Information Systems
SENA
Growing Over Times
Over the years, I have continuously expanded my technical expertise by working on web and mobile applications for international clients. My focus has been on building scalable, maintainable, and high-performance solutions using modern JavaScript technologies. I specialize in frontend development with React and cross-platform mobile applications with React Native, while also maintaining strong knowledge of system architecture, data management, and agile development practices.
Front-end Development
Mobile Development
Back-end Development
API Integration
System Architecture
Agile Development
What I offer
Frontend Development
I develop modern and responsive web interfaces using technologies such as React, TypeScript, and Tailwind CSS. My focus is on creating intuitive user experiences, clean component architecture, and scalable frontend applications.
Mobile App Development
I build cross-platform mobile applications using React Native, delivering high-performance apps with maintainable code and seamless integration with backend services and APIs.
API Integration
I integrate web and mobile applications with REST and GraphQL APIs, implementing authentication, secure data handling, and efficient communication between frontend and backend systems.
Performance Optimization
I improve application speed and scalability by optimizing rendering, reducing unnecessary re-renders, and applying best practices in state management and code structure.
What People Say
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Robinson Sanchez
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Mario Zarta
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Yeiner Alzate
