Hire mid-level freelance Ruby on Rails developers in Brazil

I'm a results-driven software engineer who loves building scalable, high-performance applications with Ruby on Rails. At Gig Wage, I focused on API integrations, performance tuning, and internal tooling, helping to scale the platform and make processes more efficient. I enjoy tackling complex problems, refactoring legacy code, optimizing database performance, and implementing best practices for maintainability and security. My expertise includes: ✔ Ruby on Rails (RESTful APIs, Grape API, Sidekiq) ✔ Database Optimization (PostgreSQL, SQL, indexing, query performance) ✔ Background Jobs & Scalability (Sidekiq, Redis, RabbitMQ) ✔ Authentication & Security (Devise, OAuth, JWT) ✔ Frontend & UX (React, Vue.js, JavaScript, ViewComponents) ✔ Testing & QA ✔ Cloud & DevOps (Docker, AWS, CI/CD, Rollbar)

I’m a passionate Ruby on Rails developer with 4+ years of experience building and maintaining robust back-end systems, including working extensively with legacy applications. Over the years, I’ve worked with various versions of Rails, adapting to evolving best practices and technologies. While my expertise lies in back-end development, I’m also skilled in modern front-end technologies. I actively work with Vue.js, leveraging its reactivity and flexibility to create dynamic user interfaces, and I’ve integrated Hotwire to deliver fast, seamless experiences without over-relying on JavaScript. I’m always striving to improve my craft and learn new tools that make development faster, cleaner, and more enjoyable. I bring dedication, attention to detail, and a collaborative spirit to every project. I’m excited to take on new challenges and prove how I can contribute to building exceptional software.

My journey as a developer has been nothing short of a thrilling adventure, filled with continuous growth and learning. It all began back in 2010 when I took my first steps into the world of programming. The very first programming language that I got my hands on was PHP. I remember the excitement of writing my first "Hello World" program and the sense of accomplishment that followed. It was in those early days that I realized the potential of turning lines of code into functional applications. As the years rolled on, I delved deeper into the world of web development. Around the mid-2010s, I found myself venturing into the realm of JavaScript and Node.js. It was a significant shift from PHP, and it opened up a whole new world of possibilities. Building real-time applications and server-side scripting with Node.js was a whole new ballgame, and it pushed me to refine my coding skills. However, the most significant turning point in my journey occurred towards the end of 2018 when I embarked on a new adventure by diving into the Ruby programming language and the Ruby on Rails framework. Ruby's elegant and concise syntax immediately appealed to me, and Rails' convention-over-configuration approach simplified the development process in a way that I hadn't experienced before. Working with Ruby and Rails allowed me to develop web applications rapidly and efficiently, and I quickly fell in love with the framework's emphasis on developer happiness. Over the years, I've continued to grow as a developer, honing my skills in various programming languages and frameworks. Each language and technology I've encountered has contributed to my knowledge and experience, making me a more versatile and well-rounded developer. Looking back at my journey, it's clear that my passion for coding has driven me to explore new horizons and embrace the ever-evolving landscape of software development. I'm excited to see where the future of technology will take me and the new languages and frameworks I'll have the opportunity to learn and master.

I have 10+ years of experience as a Software Engineer working primarily as Full-Stack with Ruby on Rails and different JS frameworks like Stimulus, Angular and Vue. I've been working full-time for international startups for the past 5 years mainly with Ruby on Rails in the backend and also been working as a free-lancer on my free time when a good opportunity arises. I consider myself very humble and a team player where I am always trying to help my teammates with some mentorship and thought-full code reviews and working as a Product minded engineer that is aware of the bigger picture behind a product and not only on delivering task after task.

My origins as a developer go back to my childhood days, when I programmed in Java, creating games (including the famous snake game) on large computers with Windows 95. As time went by, I followed the evolution of old programming languages as well as witnessed the emergence of new ones. I specialized in data analysis and structuring databases in SQL, including Oracle and SQL Server. I followed the emergence of neural language programming in Artificial Intelligence, at a time when ChatGPT prototypes already existed. I love coding ruby apps, specially with the adventure of rails where everything goes easy now. I have created lots of projects but my passion is to develop ruby on rails integrated to AI, Big Data and Cloud Development. I have expertise with git, docker, kubernets, terraform, ansible and other automations and all SQL and NoSQL environments. I have leadership experience as well, here in my country I have coordenated small developer teams using github, gitlab, JIRA, Linear and other tools. My language skills are English (read, write and speak), spanish and french. I can work as a freelancer as well, you give me your idea and I can help you bring it to the real world, I can also coordinate small developers teams, coordenate daily meetings and reports.

Experienced Front End Developer with 8 years of expertise in creating high-performance websites and driving client satisfaction. Proven track record of streamlining development processes and accelerating project cycles. Skilled in advanced Figma functionalities and empowering students to achieve professional goals. Proficient in HTML & CSS, Javascript, and React Js, with a focus on clean code and user experience enhancement. Adept at proactive analysis of Google statistics to identify optimization opportunities. Known for effective communication and problem-solving abilities, complemented by a degree in Publicity and Advertising. A dynamic professional ready to contribute to innovative projects and exceed expectations in a collaborative environment.

I've been building and maintaining Ruby on Rails applications of all kinds and sizes since 2013, always trying to apply the best practices and community conventions. I'm studying more about AI and ways to improve my work/systems with it. I created a model for my current company to predict delivery times in our platform with 84% of accuracy. I have experience working in projects from conception to release and can work at any level of the stack. I'm that nerd guy always looking at some APM tool and trying to get the best out of the language/framework. I have experience with legacy projects and enjoy solving performance related issues. Technologies I can work with: Javascript, Python, Relational and Non-relational databases, ElasticSearch, APM tools, all major cloud providers.

As a seasoned software engineer with a strong background in Ruby, Rails, and JavaScript, I have a proven track record of delivering high-performance solutions. With experience in building blazing-fast storefronts and improving memory and CPU efficiency, I excel in creating scalable and resilient systems.

My career as a Ruby on Rails developer has evolved into a journey of constant innovation and practical solutions to complex problems. At the heart of every project, my goal is always clarity and effectiveness. At Nomad Global, I not only enhanced our main application but also designed mechanisms that facilitate international transactions for thousands of Brazilians. Technology is more than just code; it is the bridge to efficiency and security in financial services. With Arbnco, I took sustainability analysis to the next level, integrating data that now guides property decisions on a global scale. Every line of code has the potential to positively impact the environment and resource economy. If you are looking for an expert passionate about transforming challenges into efficient and sustainable solutions, I am ready for the next step. Connect with me and let's explore how my experience can boost your next big project.

I am an experienced full-stack web developer with over eight years of expertise in Ruby-based applications, e-commerce, and cloud hosting solutions. My career includes significant contributions to companies like envato.com, huntclub.com, crazyegg.com, actionbuilder.org, referralcandy.com and the successful launch of two bootstrapped startups of my own. Beyond my technical work, I have a few contributions to open-source projects such as graphql-ruby, demonstrating my commitment to the development community (see here). My technical skills include Ruby, Ruby on Rails, Elixir, Phoenix (beginner), MySQL, Redis, Linux, AWS, HTML/CSS, Javascript, NodeJS, Email Marketing, E-commerce and more. Outside of coding, I have a passion for exploring the world; I've visited 39 countries and counting.