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CTO, Senior Full Stack Dev | RoR and Js/Typescript Expert | Remote

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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.

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8 years experience | Looking for contract work

High response rate
Recently updated

Hi! I'm Liz 👋🏼 I'm about as full-stack 🥞 as they come. I started as a QA and automation engineer and now I'm a senior full-stack engineer focusing on Rails and React. Early on as a QA I worked on projects from writing SQL scripts to check data, to automation engineering, to React Native applications, and even helping implement Kafka instances and a team transition to Kubernetes. Then I moved on to development, mostly focusing on Rails / React stacks. I also am very comfortable working in Python. Now I've been a full stack developer for a few years, always carrying my QA mindset with me. I love exploring the ins and outs of a problem, and figuring out where I can pick it apart and expose weaknesses. I'm really great at building relationships with stakeholders, establishing trust and cooperation so that we can all move forward with a project in a very pragmatic way. Pairing with coworkers is always very enjoyable for me. I like the collaboration, but I really value the mentorship the most. Teaching juniors git has become a mainstay for me, as well as coaching them to maintain a calm mindset while debugging, encouraging them to move through issues in a systematic way. And of course I always fit in robust testing, showing folks how to create test suites and pipeline automation that will improve their workflow. Let's talk about how I can contribute to your team and stack 🙌🏻

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Extensive experience in Ruby on Rails, Heroku, Docker. Expertise in Engineering Management.

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Recently updated

My journey in the world of software development has been marked by continuous growth and a passion for solving complex challenges. I've evolved from a Lecturer in web development to a Tech Lead Software Engineer, gaining expertise in various areas along the way. A significant milestone in my career was my role as a Senior Backend Developer / DevOps at Webedia GmbH. There, I not only mastered Ruby on Rails but also improved and configured recommendation systems, elevating user experiences to new heights. In another role as a DevOps / Platform Engineer at anynines, I excelled in automated PaaS management and introduced microservices architecture using Ruby and Golang. My knack for system automation and PaaS application support contributed significantly to the organization's efficiency. Throughout my journey, I've embraced cloud infrastructure, DevOps practices, and leadership roles. My unique skills lie in bridging the gap between development, infrastructure, and system automation, enabling me to tackle challenges that others may find daunting. I'm not just a developer; I'm an innovator who thrives on continuous learning and finding creative solutions in the ever-evolving landscape of technology. With 15+ years of industry experience, I have a proven track record in leading large teams, designing innovative systems, and making significant contributions to the industry. I am well-equipped to set and direct departments and contribute substantially to any challenging projects.

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Been building and launching startups with Rails since 2005

I've been building with Rails for a long time, including launching and scaling startups. I love e-commerce, platforms, payments, local businesses, and more recently been working with integrating AI technologies into products. Construction Datafax: 2001 - 2004 My first job was at a small technology company near where I graduated high school in Central Alabama. Construction Datafax was an information company that gathered information about construction work and sold custom reports to construction contractors. At a small company doing a lot, I was tasked with all sorts of various technical tasks including: Windows NT network administration Linux server administration End user technical support Administering weird stuff like FoxPRO databases and fax servers Web, XML, and .NET development Freelance Web Developer: 2004 - 2010 I decided to focus on web development, with Ruby on Rails as a key catalyst, using it to launch startups in 2005 before version 1.0. During this time I learned a lot about software development and building web products. I worked on a variety of projects including: Building the technology for an eBay consignment store startup, including integration with eBay via APIs and a storefront module for use with in-person customers A crowdfunding platform by a non-profit organization A collaboration platform founded by a former Microsoft executive Some projects bringing the discipline and structure of Rails to rescue PHP spaghetti code A variety of other startups, e-commerce projects, content-oriented projects, multimedia, and more MyPizza.com / Slice, Technical Co-founder / VP Eng: 2010 - 2017 In 2010 I moved to NYC where I met Ilir Sela who was starting MyPizza.com which was later renamed Slice. I joined as founding engineer and built the product and managed all the technology for the first four years, and then as the company started to grow I stayed on through Series B of VC funding and substantial growth of the company as VP of Engineering. This was a key time for me as building the technology from scratch and creating the team and everything was a tremendous experience. Being able to see how decisions played out over such a long time and through such scale gave me a whole new perspective on building systems and startups. Full stack Rails development to build all the technology needed to launch and operate MyPizza.com Management of the infrastructure, including AWS, servers, costs, and more Upon receiving VC funding, manage the growth of the team Managing QA and DevOps/CI/CD processes Partnerships and integrations with Facebook, Google, and other partners Kennedy Technology Macedonia, Owner: 2018 - 2023 In 2018 I started a software development firm based in Macedonia. After working in a series of startups I had the desire to gather and train a team of full stack Rails engineers to work with. For over five years we worked on a series of projects and startups. Opened a local business entity and physical office in the Balkans, and staffed it with a team that varied between 8 and 10 members of Rails developers together with a few designers and product support / QA staff. Product delivery team worked together to build and launch multiple projects, including e-commerce, marketplace, healthcare and COVID/vaccination response, "headless CMS" content management systems, and internal projects. Clients included startups, non-profits, and larger businesses. Technologies used include Rails, Hotwire, Next.js, React, Tailwind, Git/GitHub, CI/CD with automated tests and GitHub Actions, AWS, Render, Heroku, and more. We produced and participated in multiple events, some in coordination with other local organizations, centered around technology education, helping people enter the technology field, and career development.

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