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Vitalii O.

Bratislava, Slovakia

$20/hr
5.0
4 jobs

Looking for a reliable backend for high-load systems or a fully integrated web solution? I help companies launch scalable Java (Spring Boot) architectures with modern frontends (Vue.js, Angular, React) and cutting-edge fintech capabilities (Web3/Blockchain). How I can help your business: ✅ Simplify and automate your systems – intuitive dashboards, responsive mobile and web apps for managing devices and services ✅ Enable fast and secure operations – from online payments to digital signatures, including card integrations, Apple/Google Pay, and secure document verification ✅ Scale without compromising reliability – cloud-deployed microservices with high availability and seamless performance under growing demand ✅ Launch innovative capabilities – crypto wallet integration, tokenization, NFTs, and decentralized identity (DID) support Let’s build a robust, future-proof solution tailored to your needs — Send me your project details, and I’ll deliver results you can rely on. Tags: #Java Spring, #Hibernate, #Java EE, #Apache Maven, #Apache Tomcat, #JavaFX, #JUnit, #Gradle, #Java Servlets, #Microservices, #Jakarta EE, #Android Development, #Java Persistence API, #Lombok, #Java Streams, #JPA, #Vaadin, #Java 17, #NetBeans, #IntelliJ IDEA, #Eclipse, #RESTful Web Services, #SOAP, #Apache Kafka, #JBoss, #Docker, #Kubernetes, #Spring Boot, #Thymeleaf, #JUnit 5, #Mockito, #Spring Security, #Vert.x, #Java Native Interface (JNI), #Apache, #JavaFX Scene Builder, #Spring Data, #Apache Cassandra, #Jenkins, #SonarQube, #Log4j, #SLF4J, #Mockito, #Spring Cloud, #Apache Ant, #Java Mission Control, #GraalVM, #JavaFX CSS, #JDBC, #Eclipse IDE, #Java Web Start, #Netty, #Play Framework, #Apache Solar, #Java Card, #Java EE 8, #Quarkus, #MicroProfile, #Jakarta Faces, #Spring Batch, #Java RMI, #MikroORM, #Selenium WebDriver, #Apache Spark, #Jenkins Pipeline, #Java Modularity (JPMS), #Spring Cloud Data Flow, #Apache Kafka Streams, #HikariCP, #Spring WebFlux.

  • Hibernate
  • Spring Framework
  • Web Development
  • SQL
  • Docker
  • JavaScript
  • jQuery
  • GitHub
  • AJAX
Alex B.

Bratislava, Slovakia

$20/hr
4.7
2 jobs

- Scraping expert - developed fully automated system that searches and purchases e-tickets - I don't disappear, I deliver results, I try my best to understand your needs and deliver exactly what you want - I value long term relationships with my clients - I dive deep into WHY you need the thing, so that I can understand you the best and do my best About me: - 10 years full-time programmer: Java 3 yrs, Scala 5 yrs, Kotlin 2 yrs - Backend architect - Highly responsible and reliable, result-driven

  • Google Sheets
  • Google Docs
  • API
  • API Integration
  • Data Extraction
  • Data Scraping
  • Automation
  • Data Mining
  • Web Crawling
Maksym G.

Bratislava - Vajnory, Slovakia

$80/hr
5.0
31 jobs

With over 15 years of experience, I am a seasoned video streaming and machine learning engineer, specializing in the following areas: Video Streaming Solutions: Expertise in designing and implementing a wide range of video streaming solutions, including RTMP streaming and WebRTC. Computer Vision: Proficient in deploying computer vision applications both in the cloud and on edge devices. Machine Learning Inference: Skilled in engineering efficient machine learning inference systems. Technical Skills: Programming Languages: C, C++, Python Video Streaming Technologies: Extensive experience with WebRTC, GStreamer, FFMpeg, Wowza, and Janus. Machine Learning Tools: Proficient with the NVIDIA stack, CUDA, Deepstream SDK, and Triton Inference Server for machine learning inference.

  • C
  • C++
  • Python
  • CUDA
  • Video Stream
  • WebRTC
  • Machine Learning
  • Computer Vision
  • NVIDIA Triton
  • GStreamer
  • Wowza Media Server
  • Docker
  • Software Architecture
  • NVIDIA AI Platform
  • Unreal Engine
Andras P.

Kosice, Slovakia

$35/hr
5.0
4 jobs

Hello! I'm Andras Petrovci, a versatile Full Stack Java Developer with a passion for creating efficient, scalable, and user-friendly web applications. With over 7 years of experience, I've honed my skills in both frontend and backend development, working with cutting-edge technologies and frameworks. 🔧 What I Offer: - Frontend Development: Expertise in HTML5, CSS3, JavaScript (ES6+), React.js, Vue.js, Typescript. I build responsive, intuitive interfaces with a focus on user experience. - Backend Development: Proficient in Java (8-17), Spring Boot, Node.js, and Docker. I develop robust APIs and services with a focus on security and scalability. - Database Management: Experience with Postgres, MongoDB, MariaDB and MySQL. I ensure data integrity and optimize database performance. - DevOps & Cloud: Familiar with AWS, CI/CD pipelines, and containerization. I streamline deployment processes for reliable and efficient releases. - Project Management: Skilled in Agile methodologies using tools like Jira and BitBucket. I manage projects effectively, from initial concept to final delivery. 🛠 Key Projects: - Cargo B.V.: Developer of car management platforms, including complex refactoring and maintenance tasks. Built complicated modules with customs and other API integrations. - Kovit B.V.: Developed campaign management systems and internal messaging platforms. Worked extensively with Vue.js and Pinia Store for frontend and JWT for secure user authentication. Also built large parts of backend in Java. - Advan Security B.V.: Full application development using React, NextJS, NodeJS, Tailwind, Prisma, PostgreSQL. Internal platform for security company with workers location tracking, reports, hours tracking etc. 🚀 Why Choose Me? I am committed to continuous learning, regularly updating my skills, learning some new skills. My ability to adapt to new technologies and frameworks ensures that I can meet the evolving needs of your projects. Enterprise development methodology for all projects!

  • Java
  • HTML5
  • JavaScript
  • Vue.js
  • Git
  • CSS
  • JSON
  • React
  • TypeScript
  • Node.js
  • Docker
  • PostgreSQL
  • MongoDB
  • Tailwind CSS
Martin C.

Nitra, Slovakia

$35/hr
5.0
11 jobs

Experienced Moodle Developer & LMS Administrator | Custom Plugin & System Development I am a Moodle developer and LMS administrator with experience since 2018. I currently manage three Moodle platforms for government education, serving over 10,000 employees, with approximately 500 concurrent users. Additionally, I run my own company specializing in Moodle development and customization. ✅ I develop custom plugins, modules, and educational systems tailored to meet my clients' specific needs. My expertise includes both public and internal Moodle platforms, ensuring seamless administration, performance optimization, and user-friendly learning environments. LMS Administration – Full management of Moodle-based education platforms ✅ Custom Plugin & Module Development – Creating tailored solutions to extend Moodle’s functionality ✅ Report Design & Development – Building detailed, insightful reports for better tracking and analytics ✅ Moodle Customization – Adapting and improving core Moodle functions to meet specific requirements ✅ Course Content Development – Structuring and optimizing courses for an engaging learning experience ✅ Implementation & Consultation – Providing full support for Moodle deployment, education workflows, and training I am committed to delivering high-quality, efficient, and scalable Moodle solutions that enhance learning experiences. Let’s work together to optimize your LMS and create a seamless e-learning environment!

  • PHP
  • PrestaShop
  • HTML
  • Moodle
  • Bug Fix
  • MySQL
  • JavaScript
  • Learning Management System
  • Web Hosting
  • jQuery
  • React

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Cost to hire a Java Developer

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