05/02/2025 updated

**** ******** ****
100 % available

Full Stack Developer & Blockchain Developer

Zeeland, USA
Only remote
BACHELOR of ComputerScience
Zeeland, USA
Only remote
BACHELOR of ComputerScience

Profile attachments

David Harper.pdf

JavaScriptComputer ProgrammingDatabasesDevOpsDjangoUser Interface DesignMobile Application SoftwarePython (Programming Language)LaravelMongoDBMySQLNode.jsNoSQLOrganization DevelopmentRuby On RailsServer-Side DevelopmentBlockchainSQL DatabasesWeb ApplicationsData Storage TechnologiesPHP FrameworksReact.jsExpress.jsPayment ProcessingBackendGitVue.jsStripeAngularJSMaterial UIFull Stack DevelopmentReact NativeFront End Software DevelopmentReact ReduxApi DesignNestJSRestful ApiSoftware Version ControlDatabase AdministrationDocker
Full Stack Development
Expertise in both front-end and back-end technologies, including JavaScript frameworks like React.js, Vue, and Angular, as well as server-side languages ​​such as Ruby on Rails and Python/Django.

Blockchain Development
Experience in blockchain technologies, including smart contract development and NFT implementation.

UI/UX Design
Proficiency in creating user-friendly interfaces and optimizing user experiences, utilizing tools like Material UI and conducting UI/UX design for web applications.

Front-End Technologies
Proficiency in modern front-end frameworks and libraries including React.js, Redux, Vue, Angular, and React-Native for mobile app development.

Back-End Development
Expertise in server-side programming using Node.js (Express.js, Nest.js), Python (Django), Ruby on Rails, and PHP frameworks like Laravel.

Database Management
Experience with both SQL (MySQL) and NoSQL (MongoDB) databases, ensuring efficient data storage and retrieval.

DevOps & Deployment
Familiarity with Git version control and Docker containerization for streamlined development and deployment processes.

API Development
Skilled in creating RESTful APIs and integrating third-party services such as Stripe and PayPal for payment processing.
 

Languages

EnglishFluent

Project history

Senior Front-End Developer

As freelancer
Coordinate with five web developers to build front-end, design UI/UX for clients, conduct code changes in React.js

Software Engineer

sTECH d.o.o, Beograd
Coordinate with a team to build Front-End, design Database for clients, conduct code changes in React.js and RoR. Optimized UI of Web apps. Built usable, efficient REST APIs using RoR

Back-End Developer

ARTEMIS INNOVATIONS GMBH, München, Germany
Built ecommerce Restful APIs using RoR. Built a blog website using Django. Designed the frontend using react.js

Portfolio


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