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Rescuing old codebases, delivering MVPs and products to startups and Fortune 500s

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I am an experienced full-stack engineer with over 20 years building robust software architectures, including 13 years of delivering B2B, and B2C software using Ruby on Rails. Throughout my career, I've worked at both startups and large enterprises, which has given me broad experience building and implementing solutions from the ground up. I am passionate about Ruby and Rails and find the most joy and fulfillment in projects utilizing this stack. My core competencies in Rails include: Designing and implementing scalable, maintainable Rails web apps, APIs, and back-end systems Expertise in Rails MVC patterns, RESTful conventions, TDD, debugging, optimization Leading Agile processes from user stories to production - standups, sprints, code reviews Integrating third-party services like payments, analytics, APIs (Strava, Fitbit, Garmin HealthAPI, payment processors, etc.) Championing best practices like SOLID principles, design patterns, security Writing clean, well-tested, modular Rails code In addition to my Rails skills, I bring strong adaptability, communication, and leadership skills to the engineering roles. My other skills include: Disciplines: Fullstack/backend web development, devops/SRE/networking, distributed systems, engineering management, IOT Languages: Ruby, Javascript, SQL, Python, Rust, Go, Shell, C Frameworks: Ruby On Rails (API/Fullstack with Hotwire), RSpec, Minitest, Svelte, TailwindCSS, Bootstrap DevOps: Linux, Docker, Kubernetes, Ansible, Pulumi, Terraform, Chef, Github Actions, Gitlab Runners, Jenkins DataStores: PostgreSQL, MySQL, Redis, Oracle, ELK, Loki/Grafana, DynamoDB, S3 (AWS/MinIO) Cloud: AWS, Azure, GCP, MAAS, Heroky,

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Creative, Design Engineer, Pragmatic, Agnostic, Chill

Hi, As a ruby on rails developer I know what it takes to build a webapp from the ground up. To verify my experience, please check my github azeemh, and sign up for my free platform, Zedtopia. By seeing my open source code and reference projects you can see how I code in simple contexts. Going to see my work live on the web will better show you what I have built and what I am capable of coding in more complex and fully featured applications. Should we interview and agree to mutual NDA, I can also explain to you how I coded any features of interest and screen share as I walk you thru the source code, line by line. I have 2 apps live in production. Zedtopia is a socioeconomic network with democratic voting and social commerce. At this point, it's a full fledged product beyond mvp, migrated from ruby 2.7.6 & rails 5, to ruby 3.2 and rails 7, with a postgresql db. See Unlimit3d is an MVP 3d printing blockchain app, currently adding printing verification and purchase, with API partners, however users can currently sign up, upload, and share their files. Unlimit3d uses rails 7, ruby 3.2 and postgresql. See I also helped to code for the 2015-2016 election cycle, which served over 200k simultaneous logged in users at any given time. Finally my personal website is found at, with my resume available at There you can see my designs, some cool interactive software exhibits, whitepapers, and more... 

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Expert fullstack engineer 10+ years

I’m a fullstack web engineer with a decade of experience in breaking down product ideas into software bets that I quickly validate with customer interviews. I consulted as the most senior fullstack engineer and tech lead at (one of) the oldest Ruby on Rails shops in the world, Lunar Logic. I’m fluent with several technologies, but focus on business outcomes—software is just a side effect. 🎯 Successful (software) bets 🎯 - Led (fintech) to a big exit - Rescued (oms + ecommerce) from failed launch to recurring revenue - Modernized (big data + dataviz) without ever stopping for a rewrite 💻 Tech 💻 Ansible / Heroku / AWS Ruby on Rails / Hotwire Node TypeScript React Elm PostgreSQL ⭐️ Testimonials ⭐️ "Riccardo can optimize for much better performance without needing to overhaul the foundation, even when the foundation is kind of crumby: - He’s knowledgeable, willing to do the research, good at doing research, and full of good ideas. - He never lets perfect be the enemy of good enough. - He relentlessly made forward progress while patching things up along the way. - He’s always reassessing, considering the best direction forward. I would absolutely recommend Riccardo! Because he’s both extremely competent and inventive as a coder and a good communicator, project manager, and leader. Only hire Riccardo if you're willing to give him some creative control, because otherwise what's the point of hiring someone with his talents?" Michael Heimbinder Founder & Executive Director @ HabitatMap/AirCasting === “You have always made me feel like we could do anything whenever we worked together, it was only a matter of time.” Mateusz Luterek Ruby Developer @ Shopify === “The way Riccardo approaches complex problems is highly structured. Before setting out to tackle an issue, he sits down to analyze it first so that no effort is wasted. Thanks to this we could be sure that the plan that we set out will have a positive impact.” Rafał Cieślak Software Developer @ Teleport === “I am certain that Riccardo would be a great asset to any team. Here's what struck me most while working with him: high technical expertise, passion for the work he does, responsibility & accountability, uniquely high levels of productivity, dedication, clear and respectful communication.” Shadi Rezek Co-Founder & Software Engineer @ Knapsack