The Best Hibernate Developers For Hire In Portugal

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$55 hourly
Sergey K.
- 4.9/5
- (5 jobs)
I am a software engineer with 10 years of experience in software development using J2EE and FE technologies. I have a background in building web services, scalable architectures, cloud technologies, and data management. Core experience: • Web Services, Microservices, REST APIs • Agile Scalable Architectures, High Load Systems, Cloud Technologies, Data Management • Java Performance optimization, Bottlenecks, Concurrency and Multithreading • Front-End, Mobile Application and Desktop Development • Agile Development, CI/CD practices, Security Compliance and more Key skills: • Java · Kotlin · Concurrency & Multithreading · JVM & GC tuning • Spring Framework · RESTful API · Security & OAuth 2.0 · SSL · DNS • Micro services · DigitalOcean · AWS · ActiveMQ · Kafka · RabbitMQ • MySQL · PostgreSQL · Oracle · MongoDB · Redis · Hibernate · CRUD & POJO • JS/TS · React · Angular · jQuery · Bootstrap · Thymeleaf · Websockets · SPA · Node.js · Vue.js • RCP · OSGi · EMF · Cross-Platform Apps · SWT • Financial Protocols: FIX, FIX 4.2, FIX 5.0, Arrowhead, Swift I’m proactive and self-motivated developer, energetic and driven by engineering challenges which add maximum value to company and users. I will gladly be a part of a professional team that values honesty and good-natured communication

Hibernate
Spring Framework
SQL
Cloud Architecture
Websockets
NoSQL Database
JavaScript
Multithreaded Programming
CI/CD
Java
$36 hourly
Kleanthis A.
- 5.0/5
- (2 jobs)
Seasoned Full-Stack Developer dedicated to translating concepts into powerful and cohesive web applications. With 14 years in the industry, I've cultivated expertise in both frontend and backend technologies, ensuring a holistic approach to every project. What Sets Me Apart: 🌐 End-to-End Proficiency: From crafting engaging user interfaces to optimizing server-side functionality, I possess comprehensive skills across the entire development stack, making me your go-to partner for full-stack excellence. 🔧 Tech Stack Mastery: Fluent in [list your key frontend and backend technologies, languages, and frameworks], I bring a robust toolkit to deliver high-quality, scalable, and maintainable solutions. 🧠 Problem-Solving Prowess: My analytical mindset allows me to dissect challenges and implement effective solutions. I relish the opportunity to tackle complex problems head-on and deliver streamlined results. 🤝 Collaborative Approach: I thrive on collaboration. By actively engaging with clients and stakeholders, I ensure that the final product not only meets technical specifications but also aligns seamlessly with business goals. Key Accomplishments: 1 Elevated User Experience with Responsive Design: Successfully revamped the user interface of a client's e-commerce platform, resulting in a 30% increase in user engagement and a significant boost in mobile responsiveness. 2 Optimized Backend for Scalability: Engineered a scalable backend architecture for a high-traffic content platform, leading to a 50% reduction in page load times and ensuring seamless performance during traffic spikes. 3 Implemented Robust Security Measures: Strengthened the security posture of a financial application by implementing advanced encryption algorithms and security best practices, earning client trust and compliance with industry standards. 4 Cross-Platform Application Success: Developed a cross-platform mobile application using React Native, achieving compatibility across iOS and Android devices and garnering positive user feedback for its smooth performance. 5 Agile Development Leadership: Led a cross-functional development team in adopting Agile methodologies, resulting in a 20% increase in project velocity, quicker delivery cycles, and improved collaboration among team members. 6 Problem-Solving in Legacy Codebase: Resolved critical issues in a legacy codebase, introducing code refactoring strategies that improved maintainability and reduced system downtime by 25%. 7 Custom API Integration: Integrated custom APIs into a client's web application, enhancing functionality and enabling seamless third-party service integration, resulting in increased user engagement. 8 Client Satisfaction and Repeat Business: Maintained a 100% client satisfaction rate on completed projects, leading to multiple invitations for follow-up work and establishing long-term relationships. 9 Contributions to Open Source Community: Actively contributed to open-source projects, demonstrating a commitment to community collaboration and staying at the forefront of industry best practices. 10 Adaptability to Emerging Technologies: Quickly adapted to and implemented cutting-edge technologies , keeping projects technologically current and future-proof. What I Can Bring to Your Project: 🚀 Web Development Excellence: Whether it's building responsive, user-centric interfaces or architecting robust backend systems, I'm committed to delivering top-notch web applications. 📱 Cross-Platform Expertise: Leveraging my skills in both frontend and backend technologies, I can develop cohesive and responsive applications that function seamlessly across various devices and platforms. 🛠️ Custom Solutions: If you're looking for a tailored software solution that spans the entire technology stack, I specialize in creating versatile and scalable applications. Let's Discuss Your Development Needs: I'm excited about the prospect of collaborating on innovative projects. Whether you're a startup with a groundbreaking idea or an established business seeking to enhance your digital footprint, let's connect and turn your vision into a robust, full-stack reality. Ready to elevate your development journey? Let's start the conversation!

Hibernate
PHP
JavaScript
SQL
Python
WordPress
MySQL
CSS
API
Logo Design
Server
Dev & IT Project Management
SEO Audit
Search Engine Optimization
SEMrush
$50 hourly
Ginquel M.
- 4.8/5
- (31 jobs)
🥇 TOP RATED PLUS (100% JSS) "I represent the top 3% of performers on Upwork being Top Rated Plus" - Upwork Full-stack developer with +8 years of professional experience and an overall of 12+ years of experience, specializing in: ✔ Java, Spring Boot, Spring Data JPA, Spring Security, Oauth2 ✔ Typescript, Angular, Angular Material.. ✔ Javascript Working with me, you will: ✔ Get fast response, clear communication ✔ Beautiful and reusable code, intuitive, and functional interface applying all the best practices ✔ Developer familiar with DevOps practices and CI/CD pipelines. About My Skills: Backend: ✅ JAVA, Java EE, JAX-RS, JUnits ✅ Spring Frameworks (Spring Boot, Spring MVC, Spring Data JPA, Spring Security, etc) ✅ Spring Security, Oauth2, Open ID Connect (OIDC) ✅ Hibernate ✅ Servlet, JUnit, Jackson, Gson, Concurrency in Java ✅ REST API, Swagger / Open API, Quartz, Lombok, REST, JSON, XML ✅ Apache Kafka ✅ Microservices Frontend: ✅ Angular, Angular Material, Typescript ✅ AG Grid, NGX Admin, Ng-Bootstrap, angular-oauth2-oidc ✅ ng2-charts, chart.js ✅ React ✅ Javascript ✅ HTML, CSS, LESS ✅ TailwindCSS ✅ Bootstrap, ExtJS CI/CD (DevOps) ✅ GIT, GitHub, GitLab ✅ GitHub Actions ✅ Docker ✅ Kubernetes ✅ Jenkins ✅ REST API ✅ AWS ✅ GKE Others: Software/tools/others; ✅ Database (MySQL, Oracle, SQL SERVER, T-SQL, DQL) ✅ Nodejs (Express, NPM) ✅ Maven, Gradle, TFS ✅ Oracle SQL Developer ✅ Amazon Cognito ✅ AWS Services ✅ GCP (Google Cloud Platform) ✅ Azure DevOps ✅ Visual Studio, Visual Studio Code ✅ IntelliJ, eclipse, Atom, Android Studio ✅ mRemoteNG ✅TFS, VSTS, SVN ✅ Tomcat ✅ Postman, SoapUI ✅ Unix, Linux ✅ Firebase, Firestore ✅ JIRA, ClickUp ✅ OpenText Documentum xCP ✅ EMC Documentum Composer [Documentum ✅ Composer (Deployer) - version 7.3] ✅ EMC Documentum Administrator (DA - Version 7.3) ✅ ECM Documentum Process Builder (DFC Version 6.7.3) ✅ BOF (Business Object Framework) ✅ dqMan 5 Standard (DCTM Client 6.7) ✅ Websphere ✅ Centera SDK (DELL) ✅ Internet Information Services (IIS) ✅ Administration VMWare, VirtualBox ✅ Install and Format Operate System Feedback: ⚡️"A brilliant experience!. Ginquel has been a superb addition and we will be working long into the future. You are in a safe pair of hands with Ginquel!." - Bluepod Media Worldwide Limited ⚡️"Ginquel is knowledgeable, capable and inspiring wok partner. He makes his research well and suggests the right direction to solve problems. His work ethic is admirable." ⚡️ "Ginquel is delivered beyond expectations. I couldn't be happier." I have worked with high-profile Organizations in my career, including the following to illustrate some of them: ✔ BNP Paribas (Revenue: 46.2 billion EUR (2021) ✔ Fujitsu (revenue 4.7 trillion yen (US$41 billion)) ✔ Timwe-Tech (operates in 80 countries) ✔ Accenture (+530K employees worldwide) ...

Hibernate
React
Apache Kafka
Amazon Cognito
OAuth
Docker
Web Development
Spring Security
Git
Spring Boot
JavaScript
HTML
Angular
Spring Framework
Java
$63 hourly
Rustam H.
- 5.0/5
- (12 jobs)
10+ years of experience. last 4 years working on Upwork platform functionality as a part of Upwork company. Worked on contracts / offers / subscriptions parts of Upwork platform. I've spent 7 years working with PHP (using Symfony2/3 framework) and 4 years with Java (Dropwizard framework).

Hibernate
Doctrine ORM
Java
Dropwizard
AngularJS
Smarty
MySQL
Twig
JavaScript
CodeIgniter
Symfony
jQuery
PHP
$85 hourly
Marco C.
- 0.0/5
- (0 jobs)
Backend Senior Software Engineer, focus on being productive instead of busy. Tech stack: Java, Spring, AWS, Docker, Kubernetes

Hibernate
Unit Testing
Integration Testing
DevOps
Kubernetes
Docker
RESTful Architecture
Spring Boot
Amazon Web Services
Java
Spring Framework
Git
$30 hourly
Andrei P.
- 0.0/5
- (0 jobs)
I'm a developer skilled in web development, database design and implementation, implementing REST services, creating tests, writing project documentation, project management, leadership, etc.

Hibernate
HTML
JavaScript
Kotlin
Apache Kafka
AWS Development
Web Development
Spring Boot
Java
$17 hourly
Caio V.
- 0.0/5
- (0 jobs)
I'm an experienced developer with Java, .Net, Node and Front end background (Angular, React.js). I'm very experienced in Azure Web Apps and Function Apps, I've worked from small business applications to Banking systems with several security layers. Regular communication is very important to me, let's keep in touch and discuss how to bring your ideas to life.

Hibernate
Linux
Bash Programming
Cloud Architecture
Cloud Computing
Web Development
Web Application
Azure App Service
Java
Angular
Node.js
Spring Boot
$70 hourly
Fadi R.
- 0.0/5
- (1 job)
Creative and solution-oriented Computer Science graduate with extensive project management experience. With knowledge of the of several programming languages such as Java, Javascript, Python, and PHP. Tending to seek more knowledge and higher degrees. Developed an ERP System with both backend and front end evolving from set of existing software. Currently registered for java courses from Udemy online related to Java up to Java 17, Spring framework, and Node.js, in addition to a Scrum Master course. Currently taking courses in java and JavaScript. ACTIVITIES As a computer scientist the parts of interest, are diverse due to major and work experience, they include: languages, communicating, building strategies in java backend, artificial intelligence, researching, programming, project management, networking and computer systems.

Hibernate
JSON API
SOAP API
AngularJS
Node.js
Java
Docker
Kubernetes
Apache Kafka
JavaScript
Core Java
RESTful API
Database
Git
C#
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