Hire the best Java Developers in Changsha, CN
Check out Java Developers in Changsha, CN with the skills you need for your next job.
- $35 hourly
- 0.0/5
- (0 jobs)
Hello, I am a Java programmer. I primarily work on Spring Boot development, and I have experience with PostgreSQL, Oracle, Redis, Kafka, RabbitMQ, and Elasticsearch. I am proficient in multi-threading, frequently use Docker and Docker Compose, and have knowledge of Kubernetes. I can write Dockerfiles based on base images and also create Docker Compose files. Additionally, I have experience in developing BFF (Backend For Frontend) modules using the Node.js framework NestJS.
Java
NestJSApache KafkaSpring Boot - $80 hourly
- 0.0/5
- (0 jobs)
As a proficient professional with a solid foundation in mathematics, computer science, and blockchain technology, my background is rich with expertise and achievements. I have honed my skills through postgraduate studies, which augmented my mathematical acumen and cross-disciplinary prowess in computer science. My exploration into zk blockchain technology has led me to significant advancements, including reducing zkEVM proof times and optimizing data availability. I excel in zk-rollup's Rust programming, utilizing Rust's memory safety and performance features to achieve optimization. In the Scroll-based zkEVM Rollup, I develop clean, modular, and concurrent Rust code for circuits, significantly enhancing off-chain processing and main chain verification, thereby improving throughput and reducing costs. My expertise extends to zk circuit verification for shared sequencers, where I apply Rust's strong typing and pattern matching to ensure accurate and private verification. My work involves securely integrating state machine and cryptographic primitives. In the realm of data availability for melodia_da, I leverage Rust's advanced design and libraries to perform data manipulation, serialization, and ensure the reliability of off-chain data, contributing to Layer 2 stability. My experiences in big data and data mining have refined my expertise, making me an ideal candidate for a web3 enterprise looking for a Rust engineer poised to drive blockchain innovation.
Java
CUDATruffleSolidityETL PipelineMongoDBSQLETLMachine LearningApache SparkApache HadoopPythonZK FrameworkRust - $60 hourly
- 0.0/5
- (0 jobs)
Ex-Android Engineer in the biggest App in China. Proficient in Android Java Kotlin. Full project management from start to finish Regular communication is important to me, so let’s keep in touch.
Java
JavaScriptReact NativeKotlinAndroidMobile App - $40 hourly
- 0.0/5
- (0 jobs)
👋👋👋 Dynamic and innovative Full Stack Software Developer with over 6+ years of experience in both frontend and backend development as well as blockchain technologies, specializing in building scalable web applications and e-commerce solutions. Expert in utilizing modern technologies such as TypeScript, React.js, Vue.js, and Node.js, PHP, Python, with a proven track record in the development of crypto backed loan products, web3 gaming, and custom e-commerce websites. Demonstrated leadership in adopting Agile practices and fostering team efficiency. Adept in consistently delivering high-quality solutions in complex, fast-paced environments. Passionate about exploring and integrating new technologies to drive business growth and user engagement. 🚀🚀🚀
Java
Smart ContractBack-End DevelopmentFront-End DevelopmentDatabaseBlockchainNode.jsPythonPHPWeb3Vue.jsReact - $40 hourly
- 0.0/5
- (0 jobs)
I am a seasoned Senior Backend Developer with extensive experience in designing and implementing scalable, high-performance backend systems. With a strong foundation in Java and expertise in modern frameworks like Spring Boot and Spring Cloud, I excel at developing robust solutions tailored to clients' needs. Key Highlights of My Work: Knows SpringBoot,SpringCloud,mysql,redis
Java
Spring Cloud - $50 hourly
- 4.8/5
- (85 jobs)
Expert developer in full stack development Real project experience with AI development, including ChatGPT, ImageToVideo, Assistant, RAG
Java
SeleniumReact NativeKotlinSpring FrameworkTest DesignMicroserviceJavaFXSelenium WebDriverApache KafkaSpring CloudPythonJavaScriptKubernetes - $20 hourly
- 5.0/5
- (8 jobs)
I have more than ten years of working experience in POS terminal software development, just like POS terminals with LINUX OS and smart terminals with android OS, even some traditional MPOS terminals without OS. I did Low-level software development, middle-level software development(SDK), and applications development during these years. I was also responsible for developing and maintaining EMV L2 contact and contactless(UPI-quick pass, VISA-PayWave, MASTER-PayPass). However, I am good at Linux C/C++ programming and android application development. Currently, I also responsible for developing back-end software like payment gateway, which integrates some different payment channels all over the world. Moreover, I am familiar with the marketing development trend of china's technical product. I also have good skills for communicating with the supplier or clients with high efficiency. So if you can provide me an opportunity, I'll make sure to do this job well. thanks.
Java
POS Terminal DevelopmentSoftware TestingCI/CDGitLabChineseJiraSoftware DesignSoftware DocumentationDevOpsSoftware Architecture & DesignEnglishCEmbedded LinuxAndroid App Development - $5 hourly
- 0.0/5
- (1 job)
I used to be a JAVA engineer for 3 years and then changed careers and switched to the education field. Now I'm trying to enter the AI field.
Java
Audio TranscriptionEnglish to Mandarin Chinese TranslationMandarin Chinese to English TranslationMandarin ChineseTranscriptAI Writing GeneratorLLM PromptData AnnotationVideo AnnotationImage AnnotationEnglish to Chinese TranslationChinese to English TranslationSimplified ChineseMySQL - $30 hourly
- 0.0/5
- (0 jobs)
I am a java engineer with nearly 20 years of web development experience. I can provide you with a complete set of programs from analysis, design to function realization of BS mode software system.
Java
SWTCSS FrameworkjQueryJavaScriptWeb ApplicationApache FreeMarkerSQL - $13 hourly
- 0.0/5
- (0 jobs)
I am a Java developer currently employed at the Fortune Global 500 company CSC (ChinaSoft International). I have extensive experience in website development, hybrid cloud deployment, and distributed systems. If you have any needs in these areas, I can assist you. I am proficient in using open-source frameworks such as SpringCloud, SpringBoot, SpringMVC, MyBatis, MySQL, Redis, Dubbo, Zookeeper, Nginx, RocketMQ, and Docker. I have several years of experience in developing distributed microservices architecture projects and am familiar with DevOps development processes. I have excellent cross-functional collaboration and communication skills, with the ability to drive projects forward effectively.
Java
DockerSpring MVCNGINXRedisSpring CloudSpring BootMySQL - $100 hourly
- 0.0/5
- (0 jobs)
I’m a developer experienced in building websites for small and medium-sized businesses. Whether you’re trying to win work, list your services, or create a new online store, I can help. Knows HTML and CSS3, PHP, jQuery, Wordpress, and SEO Full project management from start to finish Regular communication is important to me, so let’s keep in touch.
Java
LinuxJavaScriptSoftware - $10 hourly
- 0.0/5
- (0 jobs)
As a web developer, my primary focus is on web front-end development, encompassing technologies such as HTML, CSS, JavaScript, Vue.js, and more. Occasionally, I also delve into back-end development, utilizing languages and frameworks like Java, Spring Boot, PHP, Laravel, and so forth. This versatility makes me a full-stack developer with a decade of experience in the field.
Java
LaravelSpring BootPHPTypeScriptJavaScriptVue.js - $10 hourly
- 0.0/5
- (0 jobs)
I am an experienced Java backend developer with a strong focus on optimizing code and improving system performance. With extensive knowledge of Java development and leveraging smart tools like ChatGPT, I enhance both efficiency and code quality. Here’s how I can help your project succeed: Proficient in Java & Code Optimization: I bring deep expertise in Java development and am skilled at utilizing intelligent tools to streamline code, ensuring high efficiency and quality. Spring Boot & Microservices Expertise: I am well-versed in Spring Boot and microservices architecture, using tools like OpenFeign to build scalable, stable systems. SQL Server & Database Design: I am experienced with SQL Server, writing efficient queries, and using modeling tools for optimal database design, ensuring both performance and data integrity. Database Performance Tuning: With a strong background in database optimization, I improve performance through techniques like indexing and partitioning, ensuring fast and reliable system operations. Performance Optimization & Security: I am skilled in optimizing system performance and implementing security measures, including Redis caching and data encryption, to ensure your system runs efficiently and securely. File Handling & Data Import/Export: I am proficient in implementing file upload/download features, ensuring accuracy and reliability in data processing. Integration with Open Source Tools: I have a talent for integrating open-source tools to enhance project efficiency, reduce costs, and ensure successful project delivery. Strong Business Understanding: My ability to quickly grasp and implement business requirements ensures that technical solutions align perfectly with your business goals. Let’s work together to bring your project to life!
Java
PostmanApache Log4jMicrosoft SQL ServerRabbitMQRedisMyBatisSpring Boot - $10 hourly
- 0.0/5
- (0 jobs)
I’m a developer experienced in building websites for small and medium-sized businesses. Whether you’re trying to win work, list your services, or create a new online store, I can help. Knows springboot, react, Redis, Mysql.... Regular communication is important to me, so let’s keep in touch.
Java
RedisReactSpring CloudSpring Boot - $40 hourly
- 0.0/5
- (0 jobs)
1. Master of Computer Science 2. Ten years of development experience 3. Proficient in Java, including Spring Boot, Spring Cloud framework.
Java
PythonProduct DevelopmentVue.jsSpring CloudSpring BootDesktop ApplicationWeb Application Want to browse more freelancers?
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