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Top freelance Usability developers available to hire
Hello!
I'm a Sr. Web Designer with extensive experience in all aspects of web design: ideation, sketching, wireframing, designing, prototyping, coding static pages, hand-off to dev., and maintenance.
Good eye for elegant design and highly versed in technical subjects of the web. Fully capable of creating production-ready HTML and CSS.
**Codementor - 1:1 Web Design Expert - Rating:** ★★★★★
I mentor with simple-to-understand language and terminology, clear examples, and honest patience. Every time you have a lesson with me, I guarantee you will level up. 🎓 - See reviews here: [https://www.codementor.io/@ricardozea](https://www.codementor.io/@ricardozea)
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If you are more interested in what else I have to say about this industry, below are two books I have authored, followed by a list of my work:
• “Mastering Responsive Web Design”: [https://masteringrwd.com](https://masteringrwd.com/)
• “Web Developers Reference Guide”: [https://tiny.cc/web-devs-reference-guide](https://tiny.cc/web-devs-reference-guide)
💻 View my design and technical work:
• Portfolio: [https://ricardozea.design](https://ricardozea.design/)
• Smashing Magazine: [https://www.smashingmagazine.com/author/ricardozea/](https://www.smashingmagazine.com/author/ricardozea/)
• Amazon: [https://www.amazon.com/Ricardo-Zea/e/B0781579BS/](https://www.amazon.com/Ricardo-Zea/e/B0781579BS/)
• Dribbble: [https://dribbble.com/ricardozea](https://dribbble.com/ricardozea)
• CodePen: [https://codepen.io/ricardozea](https://codepen.io/ricardozea)
• Medium: [https://medium.com/@ricardozea](https://medium.com/@ricardozea)
“There are no dumb questions, it's just dumb not to ask.” — Yours truly 👍
User researcher experienced with research methodologies varying from contextual interviews, focus groups and user shadowing to usability testing and heuristic evaluations.
B.Sc in Computer Science from University of São Paulo with emphasis in Data Engineering and Web Development and Specialist in Digital Design and New Medias from Belas Artes.
Working since 2011 with usability and user experience on several business domains from Logistics to Healthcare including social networks, e-commerce and financial services with Brazilian and International companies.
Full-Stack UI Engineer focussing on **React, NodeJS & NextJS** • Experience in **Leadership** and **Team Building** • Highly proficient in setting up new **Architectures** and **Setups** for Projects • Quick to adjust to new systems
As an experienced web developer with a passion for leading and mentoring teams, I have gained valuable experience in managing and coordinating development projects, as well as guiding and mentoring developers. I am committed to staying up-to-date with the latest technologies and best practices in the field, and I'm eager to share my knowledge and expertise with my team. My ultimate career aspiration is to move into a senior leadership position within the tech industry and contribute to the success of innovative and impactful projects.
Greetings! I work as a professional mentor as a web dev bootcamp in Vancouver, BC called Lighthouse Labs, where I teach students about programming, web development, problem solving, UX/UI and anything else they need help with, one-on-one, in groups, and remotely. I also conduct practice tech interviews with the students - ensuring they are prepared for the kind of questions and format they might expect from a real tech interview, perform code and UX/UI reviews, evaluate projects and actively contribute to the curriculum. I've received praise from students, instructors, administrative staff and fellow mentors for my friendly and helpful demeanour, patience with students of all levels, ability to break concepts down to a level as basic as an individual student needs, tendency to commiserate with and relate to their struggles and frustrations, thoughtful and comprehensive feedback on code reviews and tech interviews, willingness to go above and beyond to help students, often staying late to ensure everybody has been taken care of and coming in on my off days or mentoring remotely when the mentors are understaffed, and of course for my knowledge and skill - particularly in UX/UI and front end design and development (HTML5, CSS3, SASS, jQuery, AJAX), Javascript (client and server-side with Node and Express), Ruby/Rails, full-scale project design (data modelling, information architecture etc), and conceptual explanations/examples.
I have experience with a variety of other languages/platforms/frameworks - Objective-C/iOS development, Java, C++, some PHP, SQL, Angular.js, Bootstrap, Foundation - as well as OOP, imperative and functional programming, and concepts like recursion, complexity, algorithm design, closures, callbacks, and other concepts that regularly stump students.
On my to learn/improve on list are React/Redux, Swift, Scala, Python, ES2016+ additions like async/await, and ever-strengthening my existing skills and improving my knowledge, and further developing my expertise in UX/UI design and pushing the boundaries of frontend development as far as I can.
Do you need help with your SQL Database?
Are you strugging with creating complex SQL queries, SQL query response time, index design challenges, data import or data transformation challanges?
Is your database slow and not delivering results to users as quickly as needed?
Do you need help with Performance Improvements, Query Tuning, Data Loads, ETL, Database Diagnosis, User/Application activity analysis, security audit/lockdown, database design, datawarehouse architecture, SSIS implementation, SSAS design/data-imports/performance/report design?
As an ex Microsoft Consulting employee and Startup CTO - I've worked on over 200 commercial database applications from startups to smb to enterprise.
I've created and optimized SQL Databases as large as 10TB with billions of records and have managed systems that handled up to 10k writes per second, with tables that held billions of records, whilst also returning queries for web app users in seconds based on real time write data.
I also have been heavily involved in large scale Web application design and operations, plus distributed systems, server applications, SQL->NoSQL migration projects, Text Search implementation including SQL Full Text Search and Elastic/SOLR & SQL hybrid systems.
Look forward to helping you!
I graduated in Mathematics and Computer Science at the University of Bonn (in Germany).
I am passionate about software development and technology in general.
I have more than 6 years professional experience in large software projects. Mainly in web development (full web stack).
In my current position at Fraunhofer Institute I develop in C++ (backend) and HTML/JavaScript.
How to hire a freelance Usability developer on Codementor
STEP 1
Post a Usability request
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STEP 2
Review & chat with Usability freelancers
Use our messaging feature to instantly chat with freelance Usability developers around the world.
STEP 3
Hire the best Usability freelancer
Choose the best freelance Usability developer that meets your needs.
Frequently asked questions
How long do Usability projects normally take?
The length of a project depends on many factors, including the scope of your project and the technical complexity of it. When you post a freelance Usability project request on Codementor, you’ll have the option to indicate when you’d expect the project to be completed. We suggest chatting with the interested developers to ensure both sides are on the same page. For more information on how to post a freelance Usability request on Codementor, check out our article.
How much does it cost to hire a freelance Usability developer?
We don’t charge anything when you post a freelance hiring request for Usability developers! You’ll have the chance to determine what the budget for your project is when you post the request. You’ll only need to pay the developer if you’re 100% satisfied with their work. Please know that Codementor charges a small service fee when a developer completes the job.
What makes Codementor Usability developers different?
We do a comprehensive technical and communications screen of all Usability developers at Codementor. Our network includes book authors, popular open source contributors, top Stack Overflow users and engineers at top tech companies. In addition, to continually ensure the quality of our freelancers, we regularly check in on existing Usability developers’ user satisfaction rates.
What happens if I’m not happy with the freelancer’s work?
As a platform, we strive to ensure you’re always happy with your Usability project’s results. If you’re unsatisfied with the results, you can choose to get a refund for the project. Additionally, you can contact our support team should you need any further assistance with your project.
For more answers to frequently asked questions, see here.