Spring Boot Jobs

I'm looking for a seasoned developer who's proficient in implementing JWT-authentication and integrating Keycloak with SpringBoot. The project aims to create a robust, secure user authentication system. Key project requirements: - Implementing JWT authentication. - Integrating Keycloak with SpringBoot. - Developing a secure login system for a large user base (more than 1,000 users). - Managing user roles and permissions dynamically, allowing admin users to control them. Ideal Skills and Experience: - Proficient in SpringBoot and Keycloak. - Strong experience in implementing JWT authentication. - Prior experience in developing secure systems for large user bases. - Knowledge in setting up dynamic user roles and permissions, especially in a SpringBoot environment. - Ability to d...

I'm currently experiencing some problems with my Spring Boot and database backend, namely (but not exclusively), data inconsistency and significant performance issues. • Data Inconsistency: There's a rampant issue of missing and incorrect data circulating within the system. This issue impacts the integrity of the entire project and lowers its efficiency. I am seeking a professional who can help identify the source of the inconsistency and implement a permanent fix. • Performance Issues: I am dealing with certain performance issues, specifically very long database queries. Additionally, the task reassignment isn't functioning as it should, and data entry is also compromised. Ideally, I'm looking to enlist the services of a professional who possesses a strong...

As an experienced Java Developer, I need your expertise in integrating Apache Camel with our web app. This integration is primarily aimed at facilitating the routing of messages between our system and external APIs. Key Requirements: - Understanding of Apache Camel: You should have comprehensive experience working with Apache Camel, ideally in a similar integration scenario. - Communication with External APIs: Our system needs to seamlessly communicate with multiple external APIs. You should have a solid understanding of RESTful APIs and experience integrating them. - Synchronous & Asynchronous Communication: The integration needs to support both synchronous and asynchronous communication with the external APIs. Feel free to provide examples of similar projects you have worked on ...

I am in need of a Full-Stack developer well-versed in Apache Kafka for configuration, message serialization, deserialization, event streaming, and processing. Additionally, you will be responsible for developing Spring Boot microservices that encompass user authentication, authorization, database integration, data modeling, and REST API development. Key responsibilities include: - Kafka setup and configuration - Kafka message serialization and deserialization - Kafka event streaming and processing - Designing and implementing user authentication and authorization within Spring Boot - Integrating databases and modeling data effectively - Developing REST APIs with Spring Boot The ideal candidate for this project should have extensive experience with Kafka and Spring Boot as well as a stro...

We have our own ERP for accounting and inventory control, develioped using Spring Boot and Angular. I am in need of an experienced developer who can assist in integrating various PDF formats of invoices through the use of Optical Character Recognition (OCR) technology. The primary objective of this task is to streamline and automate the processing of invoices. Initially we can focus only on Sales Modules in which we have 2-3 formats of invoice and which need to be imported automatically in the entry module. Key Project Details: - The PDF invoices I frequently deal with come in both scanned image and digital (text-based) formats. - The extracted data from these invoices must be: - Directly integrated into Sales and Purchase Invoice Module for further processing - Exported to Excel/...

Need a apache kafka tutor for self learning

I'm looking for an experienced Spring Boot developer to help me with some code refactoring and debugging. Check this: 1. Compile the code and fix bugs. 2. Modify the project. a. Create individual componemts. a. server b. client c. Frontend etc. and refactor. Simplify the code. 3. Test and release. - Compile the code and perform minor tweaks and optimizations to address any bugs that may arise. - After the initial debugging, the focus will shift to modifying the project. It involves breaking down the existing code into individual components such as server, client, frontend, etc. - In this modification phase, the main goal is to enhance the functionality of the project while simplifying the code structure. The final phase will encompass thorough testing of the revamped code for an...

I'm seeking a skilled developer to assist with the following tasks on my open source project hosted on GitHub. Check this: 1. Compile the code and fix bugs. 2. Modify the project. a. Create individual components. a. server b. client c. Frontend etc. and refactor. Simplify the code. 3. Test and release. - Compile the code and perform minor tweaks and optimizations to address any bugs that may arise. - After the initial debugging, the focus will shift to modifying the project. It involves breaking down the existing code into individual components such as server, client, frontend, etc. - In this modification phase, the main goal is to enhance the functionality of the project while simplifying the code structure. The final phase will encompass thorough testing of the revamped code...

I have a android application which is powered by SpringBoot app. Springboot server is currently hosted on EC2. I'd like help to relocate this server to AWS Lambda , use AWS dynamoDB db instead of instance memory. The android app should talk to AWS lambda instead of EC2. Freelancers with previous experience in AWS, specifically AWS Lambda, SpringBoot, API Integration.

I'm looking for a skilled Java developer who is well-versed in Java 8 features. I need someone to help me understand and implement the various aspects of Java 8, including but not limited to: - Lambda expressions - Streams - Default methods - Date and Time API While the specific tasks or problems related to Java 8 that I need help with weren't provided in this form, you should be comfortable with teaching and guiding me through potential challenges in these Java 8 features. Your goal is to help me gain a deep understanding of these functionalities and how to apply them in practical scenarios. Ideal skills and experience for this job include: - Strong proficiency in Java, specifically in Java 8 features - Prior experience with teaching or mentoring Java concepts - Excellent com...

I am currently seeking a skilled mid-level Full-Stack Developer, experienced in both Spring Boot and React, to aid in the development of a complex data management application. Key duties involved in this role include: - Backend development tasks, ensuring the application runs smoothly and efficiently. - Frontend development tasks, guaranteeing a user-friendly interface for consumers. - Full-stack development tasks, promoting a cohesive and well-integrated web application. The perfect candidate preferably has previous experience in building and optimizing data management applications. They must be capable of striking a balance between functional and aesthetic design, while ensuring high quality and responsive applications are created. A mid-level understanding of web apps, as well as prof...

本项目旨在为用户提供一种将其购买商品的电子小票转换为可复制的json文本数据的集成工具服务。 电子小票的载体一般为微信小程序或H5网页。 本项目包括一个网页端和一个云服务器。 本项目关于爬虫相关的技术，在网络中如github已有相关源代码帖子证明可实施，但前端网页及服务器的其余功能开发需要参考文档完成。 本项目不仅仅是完成功能的实现，更主要的是项目的运行维护，包括云服务器的搭建及管理等，具体要求详见附件文档说明。 海外华裔优先