Javascript Developer & React Developer & React Native Developer

Dieser Kandidat ist ein React- und React Native-Entwickler, der seit über 7 Jahren in diesen Technologien in der kommerziellen Praxis entwickelt. Er zeichnet sich auch durch Technologien wie iOS, Android, Java und Kotlin aus. In seiner aktuellen Position leitet er ein Projekt für norwegische Kunden, das sich auf eine App zur Unterstützung von Zugreisen ab September 2021 konzentriert. Er ist am technischen Design, der Produktbereitstellung und dem DevOps-Support beteiligt und verwendet Technologien wie React, React-Native, iOS, Android, Swift, Objective-C, Java und Kotlin. Zu seinen früheren Aufgaben gehören Projekte mit Kunden in Großbritannien, Belgien, den USA und Israel. Sie verfügen über vielfältige Erfahrungen in den Bereichen digitales Publishing, Social Media Management und Bildungsplattformen für Unternehmen, wobei sie Technologien wie GraphQL, Typescript, Node.js, Docker und mehr einsetzen. Sie beherrschen die Kommunikation in englischer Sprache auf einem ausgezeichneten Niveau.

Self-employed, Spišská Nová Ves (Norwegian customer)

• Duration September 2021 - Present (2 years)
• Role: React, React-Native, iOS, Android, Java/Kotlin full-stack senior engineer (Technology and team leader)
• Project Description: Assistance with traveling by train conveniently on your phone. App for travelers with limited mobility to plan trips, request assistance, and monitor trips in real-time.
• Responsibilities: Application technical design, product delivery, DevOps support, testing, sprint planning, estimations, new feature implementation, optimization.
• Technologies: React, React-Native, iOS, Android, Java, Kotlin, Swift, Objective-C, REST, GraphQL, Typescript, Docker, Kubernetes, Azure, GitHub Actions, Firebase, and more.

Self-employed, Spišská Nová Ves (UK customer)

• Duration: Aug 2018 - July 2020 (1 year and 11 months)
• Role: React, React-Native, iOS, Android, AWS senior full-stack engineer
• Project Description: International weekly newspaper app focusing on current affairs, business, politics, and technology.
• Responsibilities: Development, testing, estimation, advertisement & subscription management, optimization, new features.
• Technologies: React, React-Native, iOS, Android, AWS, CircleCI, GitHub Actions, Bamboo, Firebase, and more.

Self-employed, Spišská Nová Ves (Belgian customer)

• Duration: July 2020 - September 2021 (1 year and 2 months)
• Role: React, React-Native, Node.js, iOS, Android full-stack senior engineer (Technology and team leader)
• Project Description: Assistance with traveling by train app for travelers with limited mobility.
• Responsibilities: Technical design, product delivery, DevOps, testing, sprint planning, estimations, new features, optimization.
• Technologies: React, React-Native, Node.js, iOS, Android, Kotlin, Java, Jenkins, Sonarcube, Azure, Firebase, and more.

Self-employed, Košice (US customer)

• Duration: Sep 2016 - Dec 2017 (1 year and 4 months)
• Role: iOS Senior developer
• Project Description: Social media campaigns management mobile app - content marketing platform for enterprise.
• Responsibilities: iOS development, feature integration, bug fixing, code review, testing, planning, CI/CD.
• Technologies: iOS, Swift, SwiftUI.

Self-employed, Spišská Nová Ves (UK customer)

• Duration: Jan 2018 - July 2018 (7 months)
• Role: React-Native Senior developer
• Project Description: International weekly newspaper app.
• Responsibilities: React-Native development, testing, planning, estimations, advertisement integration, optimization.
• Technologies: React-Native, iOS, Android, Typescript, Firebase.

Self-employed, Spišská Nová Ves (Israel customer)

• Duration: May 2018 - Aug 2018 (3 months)
• Role: React-Native Solution Architect, Full-stack engineer
• Project Description: Business education platform for millennials.
• Responsibilities: Technical architecture, development, backend, DevOps, planning, optimization.
• Technologies: React, React-Native, Nest.js, Docker, Kubernetes, Helm.

Freelancer, Košice (German customer)

• Duration: June 2014 - Nov 2014 (6 months)
• Role: Java mid developer
• Project Description: SAP data to Java transformations, data encryption/decryption, automation system for SAP data manipulation.
• Responsibilities: Java Spring development, compression/decompression, data validation.
• Technologies: Java, JNI, CloverETL.

Freelancer, Košice (Slovak customer)

• Duration: Nov 2014 - Sep 2015 (11 months)
• Role: Full-stack iOS/PHP Tech leader
• Project Description: Retail system, statistics operations, composed of multiple applications.
• Responsibilities: Tech leadership, iOS and PHP development, deployment management, business analysis.
• Technologies: iOS, Swift, PHP, Symfony, PostgreSQL.

Freelancer, Košice (Czech customer)

• Duration: Sep 2015 - Sep 2016 (about 1 year)
• Role: React/NodeJS full-stack developer
• Project Description: Automotive web system for marketing and mobile app management, customer service systems.
• Responsibilities: Backend and frontend development, database manipulations, pipeline configuration, Docker.
• Technologies: React, Microsoft SQL, Docker, NodeJS, Azure, TFS.

Internship, Košice

• Duration: Sep 2011 - Dec 2012 (over 1 year)
• Role: Full-stack developer
• Project Description: Driving skills evaluation in public transportation using sensor data analysis.
• Responsibilities: Full-stack development, database design, UI/UX design, project management.
• Technologies: Android SDK, Angular, Meteor.js, Ionic, MongoDB, ReactiveX