The reverse job board for Rails developers

TBD

As someone from Sales & Marketing industry, Visnu's career shift to tech industry has been successful as a result of being curious and his desire to solve real world problems. Given the short period of being a Ruby on Rails Developer, he had proved his capability to quickly adapt to the past paced environment of software engineering. Experienced working in a FinTech company and curious in AI.

Great code comes from stupid problems

I'm a computer programmer specializing in full-stack web applications. I have a keen eye for designing user interfaces and experiences that make products easy to use and visually appealing. Beyond programming, I enjoy guiding and mentoring others, fostering positive teamwork, and ensuring high-quality, efficient project outcomes.

I started learning Ruby 10 years ago when a specific problem needed to be solved at a retail company. Since then, I have continuously leveraged the potential of this exceptional programming language. Currently, I am training in AI-assisted automation to optimize the resolution of time-consuming problems. I am passionate about learning new skills. I have always had a keen interest in acquiring new knowledge and consistently find ways to apply what I learn to solve problems or improve processes. I take a great interest in deeply understanding the products I work with, which allows me to find the best solutions to satisfy customer needs. Over the past few years, I have used various technologies such as Ruby, Hotwire, Vue.js, Flutter, as well as tools in artificial intelligence, No-Code, and automation.

Hello, I am René - a Software developer (Ruby on Rails, JavaScript) living in Germany. I'm a freelance software developer since 2002 and work as backend, frontend or full stack developer for craftsmen, medium sized companies, startups or corporations. If you need support for your existing team, want to implement an idea or just need some advice about software development, just give me a call.

With over two decades of experience in software/application development, I've cultivated an expertise that spans multiple technologies and industries. Beginning with Java, I honed my skills within the heart of France's major banks and industries, mastering the foundations of software architecture. A decade later, my passion led me to Ruby, ushering in a new era of innovation. From dynamic startups like HelloPrêt to industry giants such as Doctolib, EDF, and Smart Pension, I've thrived in diverse environments, leveraging Ruby's flexibility to deliver exceptional solutions. Mentoring: Throughout my journey, I've embraced the role of mentor, guiding junior developers to unlock their potential and fostering a culture of collaboration and excellence. By offering advice and assistance, I've not only enhanced team productivity but also cultivated a cohesive and supportive work environment. Test addict: Testing isn't just a task – it's a philosophy that I've embraced since my inaugural professional experience in 2004. From unit tests to performance evaluations, I've championed the importance of comprehensive testing, recognizing its pivotal role in crafting resilient, bug-free software. Beyond mere functionality, tests empower us to build applications that are not just robust, but also easily maintainable. Performance lover: I'm passionate about performance optimization. Whether it's identifying and fixing N+1 queries, optimizing database indexes, or fine-tuning JVM settings, I love diving into performance challenges. Each problem is unique, and I enjoy finding tailored solutions to ensure systems run smoothly and efficiently.

I am an experienced developer, specialized in creating tailor-made IT solutions. With strong expertise in web development, I am passionate about creating innovative and high-quality products. I also have very strong skills in architecture, cloud, security, DB, UX, UI and devops. Most of the time i deal with postgresql, hotwire, turbo, active storage, tailwind, redis, docker and much more. My close collaboration with clients, my commitment to excellence and my flexibility make me the ideal partner to transform your ideas into technological reality. Contact me to discuss how I can contribute to the success of your project.

Senior software engineer with over 10 years of experience as a remote freelancer. My educational background includes an MSc 2:1 in computer science and applied mathematics engineering from ENSEEIHT (Toulouse, France) in 2009. I then worked for 2 years as a frontend developer at a startup in London and transitioned to backend work in 2013. Specializing in web application development, I have undertaken projects for companies such as Carrefour, L'Oréal, Cocolis, Epicery, and Alerti. My work has encompassed backend development, data engineering, code and database performance improvement, e-commerce platform customization and logistics, payment system integration, API creation, crawlers, technical documentation, and testing. Passionate about data manipulation and rendering them to users and stakeholders in a more meaningful way, I am currently expanding my skills in AI/ML and neural networks through CNRS fidle formation to explore how I could apply and offer these services to my clients. Recent milestones and accomplishments include: Migrating the payment system from Adyen to Stripe for Epicery Migrating the frontend from Vue to Hotwire for Epicery Developing a geolocalized matching algorithm between carriers and packages for Cocolis Fields of expertise: E-commerce solutions with Solidus/Spree open-source framework Data processing and visualization with Business Intelligence tools for reporting Integration of payment system providers Integration of third-party APIs Database design and performance optimization Frontend performance optimization Crawling and scraping Technical audits Testing, documentation, CI/CD tools Experience with the following: Languages: Ruby, Typescript, JavaScript, Node.js, Ruby on Rails Platforms: AWS, Google Cloud Platform, Render, Heroku Frontend: React, Vue.js, Hotwire, Angular, HTML/CSS, Alpine.js, HTMX, Astro Payment providers: Stripe, Mangopay, Adyen, PayPal Data viz: Amazon QuickSight, Superset, Tableau Backend tools: Solidus open-source e-commerce solution, New Relic, Elasticsearch, PostgreSQL, Amazon S3, etc. CI/CD Tools: GitHub CI, CircleCI Fluent in French, English, and Spanish.

I'm a dev, a CTO, an entrepreneur and a geek. As a dev I first developed in python and C during 12 years. I developed a network security solution used by 3 millions of people. Then I switched to ruby and rails in 2014 first for a startup then as a freelance. I helped bootstrap several startups (moka.care, Watura, Me and you too, Eben Home) and reinforced teams in big companies (Doctolib, Richemont, EDF) At Squadracer, I grew the team from solo freelancer to 18 people from 2018 to 2022. Post covid was a difficult time and the team was reduced to 4 people. I was also a CTO since 2004, I'm attached to empowering people through agile and opal organization. It allows me to create an amazing team while keeping a lot of time to continue being a dev. I have a no ego policy allowing me to work in whatever position my skills are useful. I can help a lot off people by being a jack of all trade: I can do dev : linux system, back, front, devops but also CRM (hubspot, salesforce), management, product. As a geek, I also love IOT and telephony. When I was a student I had 3 vlan, 2 internet connections, 3 telephony providers. I used my voip phone in one room to turn of my screen in the other room. I reversed my electric shutter with an oscilloscope, and built a home automation center.