RxDB, or Reactive Database, is a NoSQL database for JavaScript applications that supports offline-first capabilities. It allows developers to build real-time applications with client-side data storage and synchronization features, enabling seamless data handling across devices and networks.

About RxDB
RxDB was created in 2016 by developer Christian Michelides. It was designed to address the need for a client-side database that could handle offline-first applications with real-time data synchronization. The aim was to provide developers with a robust solution for building applications that required seamless data handling and synchronization across multiple devices and networks.
Strengths of RxDB include its offline-first capabilities, real-time data synchronization, and compatibility with various JavaScript frameworks. Weaknesses may involve a steep learning curve for new users and potential performance issues with large datasets. Competitors include PouchDB, Firebase, and Realm, which offer similar offline data storage and synchronization features.
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How to hire a RxDB expert
An RxDB expert must have strong proficiency in JavaScript and familiarity with reactive programming concepts. They should understand NoSQL databases, data synchronization techniques, and offline-first application design. Experience with frameworks like React, Angular, or Vue.js is beneficial for integrating RxDB into applications. Knowledge of data modeling and performance optimization in client-side databases is also essential.

Lucas S.
Skills
Back-end developer with over seven years of experience in web and mobile development. Adept at handling applications with high traffic volumes, accommodating up to one million daily visits. Proficient in programming languages and technologies such as PHP, MySQL, Angular, Apache, Python, Nginx, JavaScript, Vue, React, Kubernetes, Docker, and various cloud services. Exhibits a strong focus on infrastructure management and adherence to best development practices, including Test-Driven Development (TDD) and Behavior-Driven Development (BDD).

Jefferson S.
Skills
A software developer since 2007, specializing in Microsoft technologies such as C#, .Net, SQL Server, and Azure. Experience spans various project types and sizes, employing both agile methodologies like Scrum, Kanban, and XP, and traditional approaches such as Waterfall and Prototyping. Involved in global integration projects, mobile applications, desktop software, and APIs, with a diverse portfolio that includes corporate projects across industries like insurance, manufacturing, retail, and ERPs.

Renan A.
Skills
Software developer with five years of experience specializing in technologies including Angular, Java, Laravel, and NodeJS. Extensive work across diverse projects and industries.

Thristan G.
Skills
Thristan is an experienced web developer skilled at tackling and overcoming complex projects. Proficient in translating business requirements into aesthetically pleasing and user-friendly interfaces, he prioritizes optimal user experience and design. His portfolio showcases a range of completed projects and is available at https://thristan-9.github.io/Portfolio/.

Nikson L.
Skills
A professional with over 15 years of experience in projects emphasizing innovation and scalable solution development, with expertise in DevOps, TDD, SOLID principles, and CLEAN Code, as well as experience in implementing and training new IT teams. Proficient in programming languages including PHP, JavaScript (using Typescript), Java, C#, Python, Swift, and C++, and skilled in using frameworks such as Laravel, CakePHP, Codeigniter, Zend, and Struts. Knowledgeable in cloud infrastructure and agile methodologies. Committed to well-tested and documented solutions, which enhance project understanding, solution maturity, and the integration of new team members. Dedicated to continuous learning and teaching of new technologies.

André L.
Skills
A seasoned Full Stack Software Engineer with over six years of experience, specializing in the development and maintenance of scalable applications. Proficient in a wide array of programming languages and technologies, including Java, Kotlin, PHP, PostgreSQL, MySQL, MongoDB, HTML, CSS, JavaScript, and Angular. Possesses substantial expertise in Web Development utilizing Microsoft technologies such as C#, ASP.NET, ASP.NET Core, Entity Framework, NHibernate, SQL Server, and Razor.
Experience spans freelance and remote work environments, demonstrating a robust understanding of continuous integration tools and methodologies, specifically Jenkins and TeamCity CI/CD. Has an affinity for exploring diverse technologies to enhance knowledge and leverage the unique strengths of various tools. Passionate about Data Structures, Algorithms, and problem-solving, with a strong background in competitive programming.

Daniel V.
Skills
Software Developer with six years of experience in delivering quality and secure systems across various business sectors. Skilled in developing CRM SaaS, Kanban, Payroll Management, Real Estate, Vehicle Rental, CMS, Bank Reconciliation, and Internal Process Management systems alongside bespoke backoffice tools. Demonstrates proficiency in understanding business rules and excels in teamwork, proactive problem solving, and maintaining a positive work environment.
Proficient in software development using PHP, both vanilla and object-oriented within frameworks such as Laravel and Symfony, and experienced in backend JavaScript with Node.js, TypeScript, Express, NestJs, and Jest. Capable of creating, consuming, and integrating API services while ensuring proper documentation and contract validation through Swagger. Expertise in unit testing and familiar with frontend technologies like HTML5, CSS3, Bootstrap, JavaScript, and jQuery. Applies various design patterns, including MVC, Singleton, ActiveRecord, and DTO, and adept in version control with GIT, including GitHub, Git Flow, Bitbucket, and Git Actions Workflows.
Possesses strong database management skills with MySQL, in-depth knowledge of Docker, Linux/WSL, and Ubuntu environments, and experience in maintaining legacy systems by adding features, fixing bugs, and enhancing functionality. Familiar with messaging solutions using RabbitMQ and template engines such as Smarty and Blade. Employs Agile methodologies, specifically Scrum, and holds a passion for VBA in Excel for accounting solutions, automation, and macro creation with AutoIt as a hobby.

Ezau M.
Skills
A Back-end Developer with three years of professional experience, currently operating as a Fullstack Developer with specialization in Java, Springboot, Angular, and MySQL. The primary area of expertise encompasses Java and SQL, initially honed through work with Delphi and SQLServer, forming a solid foundation for career advancement. An initial engagement included a minor Java project. Subsequently, the focus transitioned to Springboot, further expanding to incorporate Docker and Microservices, specifically RabbitMQ. This progression facilitated growth into the current role, where there is an ongoing commitment to innovation and the practical application of accumulated knowledge.
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