Kavak.com

Led the development and execution of Kavak's technical roadmap, driving the company's digital transformation across international operations. This involved: 
     - Defining and implementing a cloud-based architecture to support rapid scaling of operations.
     - Establishing a DevOps culture to optimize software delivery and improve time-to-market.

Spearheaded the successful integration of WMS, MES, and Procurement modules, resulting in a 40% reduction in delivery times and a 25% increase in operational efficiency. This resulted in:
      - Increased customer satisfaction through faster vehicle delivery times.
      - Improved resource allocation and cost savings through optimized inventory management.

Successfully implemented and adapted the solution across Mexico, Turkey, Brazil, and Argentina, ensuring alignment with regional needs and market demands. This required:
      - Managing diverse team cultures and communication styles to ensure seamless project execution.
      - Adapting the solution to meet local regulations and market requirements.

Built and nurtured a high-performing engineering team of 40 engineers, fostering a culture of collaboration, innovation, and continuous improvement. This included:
       - Implementing agile methodologies to enhance team collaboration and responsiveness.
       - Establishing a mentoring program to support the professional development of junior and mid engineers.
       - Promoting a culture of knowledge sharing through technical workshops and peer reviews.

Strategically managed resources and budgets, ensuring efficient project execution and delivery within established timelines. This involved:
      - Developing a comprehensive risk management plan to mitigate potential project delays and cost overruns.
       - Utilizing project management tools (Jira) to track progress, monitor performance, and ensure accountability.

Senior Engineering Manager

Led the engineering team at Kavak.com, driving innovation and efficiency in software development initiatives, while fostering a culture of continuous improvement.

Spearheaded the strategic integration of Salesforce into Kavak's CRM processes, resulting in a 15% increase in customer engagement, 10% reduction in customer support calls. This involved:
     - Aligning technical strategies with business objectives to optimize customer relationships and streamline operations.
     - Leading a team of engineers to successfully implement and integrate Salesforce, ensuring data integrity and performance.

Built and nurtured a high-performing engineering team by recruiting, mentoring, and developing top-tier software engineers.

Collaborated closely with product, design, and business stakeholders to prioritize projects effectively and ensure alignment with strategic goals. This involved:
      - Translating complex technical requirements into understandable terms for non-technical stakeholders.
      - Prioritizing projects based on business value and impact, ensuring alignment with overall product roadmaps.

Successfully managed a comprehensive technological migration project, ensuring data integrity and system performance throughout the transition. This involved:
      - Identifying and mitigating potential risks, ensuring a smooth and seamless transition.
      - Leading the development and implementation of a migration plan that minimized downtime and disruption.

Acted as the primary technical contact for stakeholders, effectively communicating complex technical concepts in a clear and concise manner. This proved invaluable during:
      - The Salesforce CRM implementation, where clear communication ensured a successful rollout and user adoption.
      - The technology migration project, where proactive communication with stakeholders mitigated potential concerns.

Engineering Manager

Mobile Lead passionate about innovation, with a proven track record of building and leading high-performing teams to develop impactful mobile applications.

I possess extensive experience in leading projects from strategic planning to execution and launch, always focusing on enhancing user experience and operational efficiency. I have spearheaded the development of high-impact mobile applications, such as the Kavak app, and have extensive technical expertise in projects like Content, Logistic, and Mecanik, where I focused on security and performance.

My key skills include:
      - Project Leadership: Leading multidisciplinary teams in the development and implementation of mobile applications, from conception to launch.
      - Technical Expertise: Extensive knowledge in mobile development, with a focus on optimizing application performance, security, and scalability.
      - Mobile App Development: Hands-on experience in developing and maintaining high-quality code, ensuring application robustness and usability.
       - Team Management: Ability to recruit, onboard, and lead development teams, fostering collaboration and high performance.
       - Project Planning and Strategy: Aligning development strategies with business objectives, maximizing user engagement and execution efficiency.

Mobile Lead

Experienced Senior iOS Developer with a proven track record of building high-quality, scalable applications from the ground up. Instrumental in the development of the Kavak application, a platform for buying and selling vehicles.

I possess a strong understanding of the iOS ecosystem and am proficient in Swift and Objective-C. I excel at translating client requirements into robust and user-friendly applications, demonstrated by my contributions to the Kavak app from its initial conception to its launch on the App Store. My expertise encompasses the entire development lifecycle, from architecting maintainable project structures to implementing comprehensive testing strategies and ensuring optimal performance.

Key contributions to the Kavak application:
      - Designed and implemented the core architecture of the application, ensuring scalability and maintainability.
      - Developed a comprehensive suite of unit and UI tests to ensure code quality and application stability.
      - Built intuitive and engaging user interfaces adhering to design specifications and best practices.
      - Implemented robust API integrations to facilitate seamless data exchange between the application and backend services.
      - Managed the application release process, including deployment to TestFlight for beta testing and final submission to the App Store.

Key Skills and Expertise:
      - iOS Development: Swift, Objective-C, Xcode, UIKit, SwiftUI, Core Data
      - Architecture: MVVM, MVC, SOLID Principles
      - Testing: Unit Testing, UI Testing
      - API Integration: RESTful APIs, JSON, Networking
      - Agile Development: Scrum, Kanban
      - Version Control: Git

Senior iOS Developer

Kiptips

Experienced iOS Developer with a proven track record of developing and launching successful applications, including Kiptips, a social platform for sharing recommendations through photos.

As the sole developer responsible for bringing Kiptips to the App Store, I demonstrated a comprehensive understanding of the iOS development lifecycle, from initial conception and architecture to testing, deployment, and release. I leveraged my expertise in Swift, various iOS frameworks (including AVFoundation and Alamofire), and Agile methodologies to deliver a high-quality and engaging user experience.

Key contributions to Kiptips:
      - Led the entire development process: From ideation to App Store release, I was responsible for all aspects of bringing Kiptips to life.
      - Implemented core features: Developed functionalities for capturing and sharing photos, following friends, and exploring recommendations, utilizing AVFoundation for camera integration and Alamofire for network requests.
      - Designed and built user interfaces: Created intuitive and visually appealing UI elements using both programmatic constraints and Xib files.
      - Managed project timelines and deliverables: Utilized Trello for task management and adhered to a consistent development schedule, ensuring timely delivery of features and updates.
      - Published the application to the App Store: Successfully navigated the app submission process, including beta testing via TestFlight and final release.

Key Skills and Expertise:
      - iOS Development: Swift, Objective-C, Xcode, UIKit
      - Frameworks: AVFoundation, Alamofire, Core Data
      - UI/UX Design: User Interface Design, User Experience Design, Storyboards, Xibs
      - API Integration: RESTful APIs, JSON
      - Agile Development: Trello, Agile Methodologies
      - Version Control: Git

iOS Developer

Wieven

Experienced Backend Developer proficient in Ruby on Rails, with a proven track record of building and maintaining robust and scalable RESTful APIs.

I have a strong foundation in software engineering principles and a passion for crafting clean, efficient, and well-tested code. I have demonstrated my abilities in developing and maintaining numerous API endpoints, writing comprehensive test suites, and resolving complex business logic issues within existing codebases. My experience with Ruby on Rails (RoR) and RSpec allows me to contribute effectively to agile development environments.

Key Contributions & Accomplishments:
      - Developed and maintained multiple API endpoints: Successfully delivered numerous endpoints for RESTful APIs using Ruby on Rails 4.1, ensuring alignment with business requirements and scalability.
      - Implemented comprehensive test suites: Created over 2,000 unit and functional tests using RSpec for Rails, resulting in increased code coverage and improved application reliability.
      - Resolved critical business logic issues: Identified and resolved complex issues within existing code, contributing to improved application functionality and user experience.

Key Skills and Expertise:
      - Backend Development: Ruby on Rails, RESTful APIs, API Design
      - Testing: RSpec, Unit Testing, Functional Testing, Test-Driven Development (TDD)
      - Databases: PostgreSQL
      - Version Control: Git
      - Agile Development: Scrum, Kanban

Backend Developer

Oppous LLC

Experienced Technical Lead Developer with a proven track record of leading multidisciplinary teams in the successful development and launch of complex software projects, including a social network platform from conception to deployment.

I possess a comprehensive understanding of the full software development lifecycle, from database design and API development to frontend implementation and cloud deployment. I excel at leading teams, fostering collaboration, and guiding projects to successful completion. My experience in agile methodologies, such as Scrum, allows me to effectively manage tasks, prioritize deliverables, and ensure timely project execution.

Key Contributions & Accomplishments:
      - Led the development of a social network platform from scratch: Successfully guided a multidisciplinary team through all stages of development, from initial concept to deployment, resulting in a fully functional social network.
      - Architected the database entity model: Designed and implemented the database schema, ensuring data integrity, scalability, and performance.
      - Contributed to the development of the RESTful API: Utilized Symfony 1.3 to build robust and efficient API endpoints, enabling seamless communication between the frontend and backend.
      - Participated in frontend development: Leveraged HTML, CSS, and JavaScript to create user-friendly and engaging interfaces for the social network.
      - Managed the deployment process using AWS: Successfully deployed and maintained the application on AWS instances, ensuring application availability and scalability.

Key Skills and Expertise:
      - Technical Leadership: Team Leadership, Project Management, Agile Methodologies (Scrum), Mentorship
      - Backend Development: API Design, RESTful APIs, Symfony, PHP
      - Database Design: Database Modeling, SQL, Data Integrity
      - Frontend Development: HTML, CSS, JavaScript
      - Cloud Deployment: AWS, Server Management

Co-Fundador & Lead Developer

La Causa Móvil

Frontend Developer proficient in jQuery, with experience in debugging code and collaborating with backend technologies like MySQL.

I'm a skilled frontend developer with a focus on building interactive and user-friendly web experiences. My expertise lies in utilizing jQuery to implement dynamic features and enhance website functionality. I am also adept at identifying and resolving code issues, ensuring a seamless user experience.

Additionally, I possess a working knowledge of MySQL databases, enabling me to collaborate effectively with backend developers.

Key Skills and Experience:
      - Frontend Development: HTML, CSS, JavaScript, jQuery
      - Debugging: Troubleshooting, Code Optimization, Cross-Browser Compatibility
      - Database Interaction: MySQL, Data Manipulation, Querying
      - Problem Solving: Analytical Skills, Critical Thinking, Solution-Oriented Approach
      - Collaboration: Teamwork, Communication, Agile Methodologies

Frontend Developer

Results-driven Software Engineer with a 12+ year track record of delivering impactful solutions. Expertise in architecting and building scalable systems using Swift, Objective-C, Node.js, Ruby on Rails, Java, and Python. Experienced with LLMs and their applications. Proven leader in Agile methodologies and software project management, with a passion for building and mentoring high-performing engineering teams.

German Mendoza

● Implementé en código los casos de uso definidos por los analistas para un sistema de software pensional, logrando una reducción del 30% en errores de implementación.
● Diseñé y optimicé servicios backend eficientes para la persistencia de datos, mejorando el rendimiento del sistema y reduciendo el tiempo de respuesta en un 40%.
● Gestioné cambios en bases de datos utilizando Liquibase, creando y modificando tablas, agregando columnas, triggers e insertando datos, asegurando integridad y eficiencia en las migraciones.
● Automatice y ejecuté pruebas con TestNG para validar la calidad y estabilidad del código, alcanzando un 90% de éxito en los escenarios reales de usuario.
● Desarrollé interfaces de usuario interactivas y componentes reutilizables con Angular, optimizando la
usabilidad y garantizando una experiencia fluida y consistente

Desarrollador de software

Soy Hernando Junior Julio Castillo, desarrollador fullstack con más de 2 años de experiencia en la creación de soluciones tecnológicas robustas y escalables. Mi enfoque es ayudar a las empresas a optimizar sus procesos mediante el desarrollo de software de alta calidad, utilizando tecnologías como Java EE, Spring Boot, Angular y Node.js.

Me especializo en la integración de bases de datos con Hibernate y Liquibase, el desarrollo de interfaces de usuario intuitivas y la automatización de pruebas. Mi trabajo ha logrado mejoras como la reducción de errores en un 30% y tiempos de respuesta un 40% más rápidos en proyectos clave.

Valoro el trabajo en equipo, la adaptabilidad y la resolución de problemas, y siempre busco mejorar tanto en lo técnico como en habilidades interpersonales para aportar valor a cada proyecto.

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The Battle

German Mendoza

Hernando Junior Julio Castillo

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