A lista de trabalhos reversa para desenvolvedores Rails

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!

Hi, I am a Software Engineer with 6+ years of experience in the tech industry. Highly skilled in Ruby on Rails, Node.js, JavaScript and React. Here's why I'm a strong fit: • Proven work experience as a Ruby on Rails developer, showcasing proficiency in Ruby programming language, front-end technologies like JavaScript, HTML, CSS, and experience with web services such as RESTful APIs. • Experience in directing software system testing and validation procedures, reviewing and modifying existing software to correct errors, upgrade interfaces, and enhance performance. • Exceptional problem-solving skills with a focus on creating secure, reliable, scalable, and maintainable solutions while understanding the tradeoffs involved. • Eagerness to contribute to and maintain a consistent codebase, reflecting a commitment to code quality, maintainability, and team collaboration. • A positive attitude towards challenges and a proactive approach to problem-solving, ensuring a constructive and collaborative work environment.

From the moment I wrote my first lines of code, I was drawn to the power of solving real-world problems through technology. Over the past 9+ years, I’ve honed my expertise in Ruby on Rails, Node.js, Python, Go, and React, building scalable, high-performance applications across FinTech, SaaS, and Healthcare industries. My passion lies in crafting robust backend systems, secure APIs, and seamless front-end experiences, all while optimizing for performance and maintainability. One of my proudest achievements was leading the migration of a monolithic Rails application to a microservices-based architecture using Go, Node.js, and GraphQL. By carefully refactoring services, implementing event-driven patterns with Kafka, and optimizing database queries, we cut response times by 60% and improved system reliability. This experience reinforced my belief that understanding the trade-offs of different technologies is key to building resilient applications. Beyond writing code, I thrive on mentoring engineers, leading technical discussions, and driving best practices in CI/CD, cloud-native development (AWS, Kubernetes, Terraform), and DevOps automation. I love tackling complex authentication challenges (OAuth, JWT, SAML) and designing secure, scalable APIs that empower businesses to move faster. At my core, I’m an engineer who bridges the gap between backend, frontend, and infrastructure—someone who doesn’t just build software but also optimizes it, secures it, and scales it. Whether it's refactoring legacy Rails applications, designing real-time systems with WebSockets, or deploying Go-based microservices, I bring a holistic, problem-solving mindset to every project.

Hi, I'm Mitch! I've been a Rails developer since 2012. Throughout my career, I've brought my unique perspective and skills to each project I've worked on. I love delving into legacy code, finding elusive bugs, upgrading systems, and documenting codebases. I take pride in my ability to leave a project better than I found it and in a place that can be easily picked up by another developer. I have been self-employed for 5 years and work well both independently and on a team. Being self employed has broadened my skillet more than I could have imagined, since I'm constantly being thrown into new and unfamiliar situations. Throw me into yours next!

My journey into software development started with a deep curiosity about how systems scale and handle complex workflows. Over the last 4 years, I’ve specialized in Ruby on Rails, PostgreSQL, and system optimization, working on high-impact financial platforms. At Vartana, I led the complete revamp of the servicing system, transitioning from invoices to account statements, improving financial tracking, and optimizing execution times by 67%. I also played a key role in migrating our entire system to Kubernetes, reducing deployment time by 83% while ensuring zero downtime. Beyond writing efficient and maintainable code, I excel at troubleshooting critical issues, optimizing SQL queries, and enhancing system performance. One of my proudest achievements was reducing page load times by 90% (20s → 2s), significantly improving the user experience. I’m passionate about scalability, DevOps, and financial systems—I love architecting solutions that not only work but scale seamlessly. Whether it's optimizing background jobs, improving API performance, or automating workflows, I thrive on making systems faster, more efficient, and easier to maintain. When others see a bottleneck, I see an opportunity to optimize. My unique skill set lies in blending backend development with DevOps, ensuring that applications run smoothly while remaining scalable and cost-effective. I’m always eager to collaborate with teams that value clean code, performance, and reliability. I’m open to remote opportunities where I can contribute my expertise in Rails, Postgres, and system architecture. Let’s build something great together!

Ken is a seasoned software developer specializing in Ruby on Rails since 2018 and React since 2022, building high-quality applications with a strong emphasis on performance and scalability. Before transitioning into software development, Ken built a solid foundation in customer engineering at Boeing Launch Services and FARO Technologies. This experience ingrained in him a deep appreciation for customer needs, which now drives his approach to software design and development. Ken takes a customer-first approach while maintaining the focus required to deliver complex features on time. He is a strong advocate for clear communication, ensuring that potential roadblocks and critical details are addressed proactively—well before they become costly issues. With a passion for efficiency and problem-solving, Ken asks the right questions early in the discovery phase to uncover requirements gaps and resolve bottlenecks. His proactive nature, strong extraversion, and ability to navigate cross-functional collaboration set him apart, enabling him to keep projects on track even in complex environments. By applying rigorous due diligence before a project launches, Ken minimizes risks and maximizes efficiency. His "can-do" attitude and commitment to continuous learning make him a valuable asset to any technical team.

I am a Senior Software Engineer specializing in Ruby on Rails with over 5 years of experience. I excel in developing scalable web applications, API integrations, and cloud services. My expertise includes JavaScript frameworks (NextJS, VueJS, ReactJS), AWS, SQL, PostgreSQL, and MongoDB. Key Projects: TechXMation:Optimized data export processes, enhanced Sidekiq job performance, and improved internal communications. Sendoso: Developed API request signature verification, ReactJS features, and integrated Rails with GraphQL. Freelance Work:Upgraded Stripe Payment API, created Sendoso API logs dashboard, and developed a Chrome extension for Hubspot integration. Certifications: Hotwire: Reactive Ruby on Rails Applications (June 2024) -MYSQL Basic:** (March 2024) Contact: Email:hammadkhanxcm@gmail.com LinkedIn:Hammad Khan](https://www.linkedin.com/in/hammad-khan-008101123/) GitHub:hammadxcm](https://github.com/hammadxcm) I deliver high-quality, maintainable code and am dedicated to continuous learning and innovation.

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

Experienced Ruby on Rails developer with three years of professional experience in building robust and scalable web applications. A passionate problem solver with a strong understanding of web development principles and a track record of delivering high-quality code. Committed to continuous learning and staying updated with the latest technologies and trends in the Ruby and Rails ecosystem. Skills: Ruby: Proficient in writing clean, efficient, and maintainable Ruby code. Ruby on Rails: Strong expertise in building web applications using the Rails framework, following best practices and conventions. Web Development: Solid understanding of web development concepts, including HTTP, RESTful architecture, MVC pattern, and front-end technologies (HTML, CSS, JavaScript). Database Management: Experience working with relational databases like MySQL, PostgreSQL, and SQLite. Skilled in writing database queries and designing efficient database schemas. Version Control: Proficient in using Git for version control, including branching, committing, and merging code changes. Testing and Debugging: Familiarity with testing frameworks such as RSpec, Cucumber, or MiniTest. Experience writing unit tests, integration tests, and debugging code to ensure high-quality software. Agile Development: Strong understanding of agile methodologies, including Scrum or Kanban. Comfortable working in collaborative teams, using project management tools and following agile practices. Problem Solving: Excellent problem-solving skills with the ability to identify and resolve issues efficiently. Proficient in troubleshooting bugs, optimizing performance, and handling errors effectively. Continuous Learning: Enthusiastic about staying up to date with emerging technologies, frameworks, and best practices in the Ruby and Rails ecosystem. Committed to continuous learning and professional growth.

With over 17 years of experience in software engineering, I’ve built, scaled, and optimized web applications for companies ranging from startups to enterprises. My background in Ruby on Rails, TDD, cloud infrastructure and multiple front-end technologies allows me to deliver robust, high-performance solutions aligned with business objectives. One of my proudest achievements was building a WebRTC video player to automate video interviews. This solution went live and helped thousands of candidates secure new jobs. In addition to my technical expertise, I bring valuable leadership experience to the table. I am deeply passionate about mentoring and enjoy helping junior developers grow into skilled professionals. Empowering others to reach their potential is something I find incredibly fulfilling. I’ve led teams, guided junior developers, and managed complex migration projects, including platform transitions during company acquisitions. My problem-solving mindset ensures that I can drive success in challenging situations. Additionally, I can take on a product engineering role. I not only know how to build exceptional software, but also understand how to align technology with business goals. If you’re looking for someone who can architect scalable solutions, lead teams, and drive innovation, I would love to connect!