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10 years plus experience with strong mathematical and engineering background

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Highlights: 10+ years of experience as freelancer in FinTech,Healtcare and HR applications Proficient in Ruby on Rails on the backend, and lots of other tech on the frontend. Specialized in optimizing, legacy code, database performance. Experience as DevOps well. Full background: As a nineties kid, I was already tinkering/dabbling around making games and invoicing software on our first pc at home. In university, while doing my engineering and mathematics degrees, I was scripting and using a lot of different technologies on complex physics problems. In 2012, I discovered Ruby/Ruby on Rails and a lot of things just clicked/felt right. I've specifically looked for RoR startups, joined an early stage FinTech startup that exploded and has had a successful exit. From then on, I turned it into my career and never looked back. I worked in FinTech, Healthcare, HR applications, picking up different domains and iterating upon complex calculations on the way. I've architected several green field/new applications from the ground up, all of them are still in use today. Amongst them are some high traffic enrollment systems in sports and leisure. I've worked with all Rails versions, even facilitating a migration from a huge (400 models plus) legacy rails 2 application to modern standards. Along the way, I've seen some very interesting PostgresQL optimization problems. You can't go so long and not pick up some DevOps as a side quest, so worked with terraform, chef, Ansible, Kubernetes and all kinds of provisioning/hosting/deployment tools and pipelines. I've used most modern frontend frameworks (React/Redux, Vue, Angular, Ember) on different projects but for smaller applications I tend to prefer to keep it simple using Hotwire. Always open for a chat to see what I can do for you!

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Rails + Hotwire 🏗️

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Hey there! I'm an experienced software developer with a strong background in Ruby on Rails, Hotwire (including Turbo, Stimulus, and Turbo Native), Jumpstart Pro, APIs, Postgres, Tailwind. I'm really passionate about crafting high-quality, efficient, and user-friendly applications. Recently, I had the pleasure of working with inkwire.co, where we developed cross-platform applications using Turbo Native. We optimized high-traffic pages, reducing load times by ~80%, we improved database performance through query optimization, task offloading, caching, and refactoring model associations. I also collaborated with collide.app on a contract basis, where we developed a cross-platform application using Ruby on Rails and Turbo Native (Jumpstart Pro). We implemented intuitive UI/UX designs using Tailwind CSS, ensuring a seamless and visually appealing user experience. Prior to these contract roles, I worked with oblsk.com, where we contributed to remarkable projects like plt4m.com. We solved user stories end to end, conducting testing (Mini & Capy), and implementing responsive CSS (Tailwind). Another notable project was haymakersforhope.org, where we integrated a Strapi API for a headless CMS and designed a responsive interface using Tailwind too. In my spare time, I'm dedicated to giving back to the community through organizations like Ruby for Good. I've actively participated in their CASA project, assisting with both small and large issue resolution. Collaborating with like-minded individuals to make a positive impact is truly fulfilling. I consider myself on being resilient, resourceful, and emotionally intelligent. I possess strong communication skills and always strive to deliver on time. 🇺🇸 English - Professional 🇲🇽 Spanish - Native CASA project: https://github.com/rubyforgood/casa/commits/main/?author=dominiclizarraga Personal blog: https://github.com/dominiclizarraga Resume: https://standardresume.co/r/YcQ-LtWoMGJlQFJz4IvH5

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Passionate Fullstack Developer with 4 years of experience in Ruby on Rails, API integrations, and e-commerce platforms, delivering scalable solutions with a focus on performance, security, and user experience.

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My professional career began in 2019 as a Ruby on Rails developer. Since then, I've honed my skills in Ruby on Rails, API integrations, and full-stack development, primarily building e-commerce platforms. The business challenges I encountered in client meetings always pushed me to provide scalable and efficient solutions. One of my proudest accomplishments was working on a large-scale project with 200+ e-commerce clients. My contributions were recognized, and I was promoted to Software Engineer, where I also mentored new team members on the project and Ruby on Rails. I'm passionate about delivering clean, optimized code and always eager to learn new technologies. Recently, I've been diving into API design patterns and exploring AWS services to improve application scalability. My ability to collaborate across teams, adapt to new tools, and consistently deliver high-quality solutions makes me not just a developer, but a problem solver who thrives in fast-paced environments. Apart from coding, I'm also an artist who loves to paint with different mediums. I believe that my artistic skills help enhance my imagination power, creativity, and concentration, which directly contribute to my problem-solving approach in development. I'm excited to bring my technical skills, attention to detail, and passion for building impactful applications to a team that values innovation and customer success. Skills: Programming Languages: Ruby, Python, C#, Java, JavaScript, Go, PowerShell, jQuery, C++ Frameworks and Tools: Ruby on Rails, Ansible, Terraform, Jenkins, RESTful API, AJAX,React, Visual Studio Code, GitHub, GitLab, Jira, Eclipse Databases: MySQL, Oracle, MongoDB Development Practices: CI/CD Techniques, Unit Testing (RSpec, MiniTest), Automated Testing, Linting Techniques, Code Coverage Best Practices Agile Methodologies: Agile Scrum Frameworks, Scaled Agile Framework Data Structures & Algorithms