Java 21 is the latest Long-Term Support (LTS) version of the Java programming language and runtime environment, offering new features, performance improvements, and extended support for enterprise applications. It includes enhancements in areas such as pattern matching, virtual threads, and foreign function interfaces to streamline development and improve efficiency.

About Java 21
Java 21 was released in September 2023 by Oracle as part of their regular update cycle for the Java programming language. It aimed to provide developers with long-term support and introduced significant features to enhance performance, security, and developer productivity. The release continued Java's tradition of evolving to meet modern development needs while maintaining backward compatibility.
Strengths of Java 21 include long-term support, improved performance, enhanced language features, and a robust ecosystem. Weaknesses may involve slower startup times compared to some newer languages and a larger memory footprint. Competitors include Python, C#, Kotlin, and JavaScript.
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How to hire a Java 21 expert
A Java 21 expert must have skills in advanced Java programming, understanding of new features like pattern matching and virtual threads, proficiency with the Java Development Kit (JDK), experience with performance tuning, familiarity with garbage collection mechanisms, and knowledge of modern build tools like Maven or Gradle.

Alexandre T.
Skills
FullStack Developer with extensive expertise in backend development using the Laravel framework and PHP. Proficient in frontend development with AngularJS, VueJS, Blade, React, and Bootstrap. Currently advancing skills in Python, Django, Flask, and data analysis. Accountable for developing and maintaining functionalities and integrations.

José C.
Skills
A seasoned professional possesses a robust skill set in diverse programming languages and technologies, with a focus on continuous self-improvement and learning. The portfolio demonstrates extensive experience, particularly excelling in using Angular for targeted development and .NET Core for generating reliable, high-performance code. Key proficiencies encompass VB6, VB.Net, Asp Classic, Crystal Reports, Entity Framework, Razor, Angular, Asp.Net MVC Core, and C#.NET. In addition, expertise extends to REST Web Api, NodeJS, TypeScript, JavaScript, jQuery, HTML, CSS, unit testing, RabbitMQ, Telerik, JSON, SQL Server, and Oracle.

Thiago C.
Skills
Front-end developer with over two years of experience in web and mobile development, demonstrating proficiency in technologies including React JS, Next JS, React Native, Node JS, Styled Components, CSS, SASS, SCSS, Material Design, and Ant Design. Expertise encompasses state management using Redux and familiarity with architecture patterns such as Flux and microservices.

Julio V.
Skills
A specialist in enhancing knowledge and versatility with a focus on delivering reusable components to ensure application efficiency.

Caio S.
Skills
The two most important days in your life are the days you are born and the day you find out why, a remarkable phrase attributed to Mark Twain, underscores the significance of discovering one's purpose. Fascination with various scientific fields has shaped a philosophy of embracing the transformative power of technology. Presently, contributions are made within a substantial team in the foreign trade sector, leveraging advanced technological solutions to meet diverse and organized demands.

Deivison I.
Skills
Seasoned full stack developer with extensive experience in both front-end and back-end development across diverse technology projects. Commenced the professional journey by creating an educational portal for an English course, aimed at enhancing learner engagement and accessibility. Advanced to a role as a front-end developer, employing technologies such as React.js, GraphQL, and REST APIs. Currently serves as a full stack developer, spearheading the development of an application tailored to locate nearby technicians. Proficient in utilizing React.js, React Native, Node.js, MySQL, and Adonis.js, thereby ensuring comprehensive expertise in modern technological frameworks and tools.

Fabio A.
Skills
Specialist in corporate and multi-cloud solutions with over 16 years of experience in the technology field, focusing on infrastructure management, networking, device and server security, cloud applications, and migration services to the cloud (AWS). Actively involved in the digital transformation of significant companies across various sectors by applying best practices and technological innovation.
Expertise as a SysAdmin includes configuring and managing servers (GNU/Linux, RHEL, Windows, FreeBSD), extensive knowledge of routers and switches (Cisco, Dell, HP), and proficiency with NGFW Firewalls (Pfsense, Fortinet, Checkpoint). Skilled in Active Directory (AD, Samba4), SQL databases (MSSQL, MySQL, PostgreSQL), and NoSQL databases (DynamoDB). Competence in indoor/outdoor WiFi solutions (Aruba, Ruckus, AeroHive, UniFi), Backup solutions (Netbackup), web servers (Apache, NGINX), DNS systems (Cloudflare, BIND, ADGuard, NXFilter), hypervisors (Vmware, Citrix Xenserver, XCP-ng), VoIP (Asterisk), and storage solutions (NAS, iSCSI, NFS). Holds a degree in Computer Networks and a postgraduate degree in Information Security.
Currently engaged in specializations in DevOps/DevSecOps with a focus on practical learning and continuous improvement. Proficient with tools such as GitHub, GitLab, Docker, Rancher, Kubernetes, Vagrant, Ansible, AWX, Terraform, Grafana, Elastic Cloud, and Zabbix, with emphasis on Serverless technology including AWS Lambda, AWS CloudFormation, AWS APIGateway, and AWS DynamoDB.
Previously served over 13 years in roles such as Infrastructure Analyst, Security Analyst, and IT Manager, focusing on leadership and mentoring young apprentices, many of whom have developed into outstanding technology professionals. Involved in continuous infrastructure improvement projects aimed at IT cost reduction (ITIL).
Actively participates in professional activities and projects, enjoys teaching and sharing knowledge, and has experience in educational roles. Enthusiastic about embracing challenges and achievements, and volunteers for humanitarian aid causes.

Alex A.
Skills
A seasoned technology professional and entrepreneurship advocate with over 13 years of dedicated experience in the digital evolution sector. Demonstrates expertise across various domains, driven by a relentless commitment to continuous learning and skill enhancement through the engagement with new challenges.
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