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  • $35 hourly

    • 4.9/5
    • (48 jobs)
    I'm Fusion Zhu, with over 10 years of experience in Java development, including 5 years focusing on Big Data Processing and Visualisation using Java, Scala, JavaScript, HTML5, Apache Spark, Apache Hadoop, Apache Hive, Apache Flume, Apache Hbase, Storm, Kafka, DataX, and ECharts. Throughout my career: I've assisted employers in data ingestion from various sources such as RDBMS, NoSQL databases, and files by developing utilities on OSS platforms like DataXServer (open-source on GitHub) and Realtime Page Click Statistical System (refer to Portfolio section) as a Big Data Developer. I've played a key role in building Big Data Platforms using technologies like Hadoop, Spark, Hive, HBase, Flink, Kafka, and ElasticSearch as a Big Data Architect. I've designed and developed Web Applications including e-commerce and Report Systems using Java, Scala, HTML5, JavaScript, CSS, Spring, Akka, Mybatis, D3JS, ExtJS, JQuery, ReactJs, ECharts, and Bootstrap CSS as a Java & Front-end Developer. I've managed full-stack teams (Java, Front-end, QA, and Operation) effectively as a Team Leader. Furthermore, I possess extensive skills and experience in Microservice design & architecture, Container Cloud (Docker, Kubernetes), Rust, and Linux. If you're seeking a reputable and reliable professional who consistently delivers results, I'm the one you're looking for. Thank you for visiting my profile, and I look forward to hearing from you!
    Featured Skill Hadoop
    React
    Java
    JavaScript
    Scala
    Elasticsearch
    Web Development
    Docker
    OpenLayers
    D3.js
    Rust
    Spring Boot
    Apache Flink
    Apache Kafka
    Apache Spark
    Apache Hadoop
  • $25 hourly

    • 5.0/5
    • (16 jobs)
    I am a Data Engineer with four years of experience in Big Data, specializing in constructing ETL pipelines with Airflow and Apache Spark, along with Apache Spark task performance optimization. I have contributed as a Data Engineer in esteemed organizations: 🏆Xiaomi - Fortune Global 500 company 🏆Shopee - $30B market cap, $10B+ revenue ⭐ Services I Provide: ✅ Big data processing using Spark Scala | Java, with proven expertise in optimizing Spark task performance. ✅ Building end-to-end data processing pipelines for seamless and efficient data flow. ✅ Expertise in data extraction and precision in ETL data transformation. ✅ Implementation of data cleaning techniques to ensure high data quality. ⭐ Key Skills: ✅ Big data - Apache Spark, Flink, Hadoop, Kafka, HDFS, Hive, Airflow, Druid ✅ NoSQL - HBase, Redis ✅ Platform - Data Warehousing, Data lake ✅ Programming Languages - Java, Scala, Python, SQL ⭐ Why choose me over other freelancers: ✅ Over-delivery: This is the core of my work as a freelancer. I focus on exceeding expectations, a trait acknowledged during my tenure at Xiaomi. ✅ Responsiveness: I prioritize clear and prompt communication, ensuring clients are informed and engaged throughout the project lifecycle. ✅ Kindness: I approach every facet of my work with kindness, treating everyone with respect, understanding situations with empathy, and genuinely aiming to improve my client's situations.
    Featured Skill Hadoop
    Data Cleaning
    Data Extraction
    Data Engineering
    SQL
    ETL Pipeline
    Apache Kafka
    Apache Spark
    Apache Hadoop
    Java
    Hive
    Apache Flink
    Big Data
    Scala
    Python
  • $25 hourly

    • 5.0/5
    • (5 jobs)
    I’m a developer with experience in NLP、LLM 、 CV and recommendation system and bigdata. 1. I’m experienced in RAG、langchain、deepspeed、llm、 object dection、video generation 2.I’m experienced in hadoop/hdfs/yarn/hbase/redis/kafka/hive, 2. I’m experienced in tensorflow/kubeflow/tf serving/trtion serving 3.I’m experienced in k8s/docker/html/jqurey/spring boot/mybatis 4.I’m experienced in aws componet, such as emr/ec2/s3/code deploy
    Featured Skill Hadoop
    jQuery
    LangChain
    LLM Prompt Engineering
    PySpark
    AWS Application
    Big Data
    Artificial Intelligence
    Apache Hadoop
    Spring Boot
    Kubernetes
    Apache Flink
    Java
    TensorFlow
    Apache Spark
  • $60 hourly

    • 5.0/5
    • (1 job)
    I'm a software engineer with 3 years of full time experience in building full stack services for medium and large-sized companies. • Proficient in Java/SpringBoot, Python, BigData etc. • Knowledge in Agile Development. • Open to all teck stacks and I am self-driven enough to ramp up all skills. • Regular communication is important, so let's keep in touch
    Featured Skill Hadoop
    Hive
    Bash Programming
    Linux
    Google Cloud Platform
    Apache Flink
    Apache Hadoop
    Software
    Jenkins
    PostgreSQL
    Microsoft SQL Server
    Redis
    Golang
    Spring Boot
    Java
    Python
  • $25 hourly

    • 5.0/5
    • (12 jobs)
    bigdata，sql optimize，sql parser，apache calcite，java，bigdata，sql optimize，sql parser，apache calcite，java，bigdata，SQL，Linux Shell，Apache calcite，Apache Maven，Springboot，Apache Yarn，Apache Spark，Apache Calcite，Jenkins，MySQL，PostgreSQL，GitLab
    Featured Skill Hadoop
    Unix Shell
    Apache Hive
    Apache Hadoop
    Spring Boot
    Jenkins
    GitLab
    GitHub
    Apache Spark
    Java
    SQL
    PostgreSQL
  • $30 hourly

    • 5.0/5
    • (1 job)
    I have six years of professional experience in ERP development, big data development, and quantitative trading. I am proficient in using various languages such as Python,Java,C#,SQL,Linux Shell. I am also familiar with big data technologies such as Hadoop, Spark, Hive, Flume, and Kafka. I have successfully developed and maintained a budget and final accounts system for a large unit, built offline data warehouses for online trading platforms, and developed and executed low-frequency CTA strategies for futures trading. I have strong stress resistance, learning ability, logical thinking ability, communication skills, and teamwork spirit. I am keen on learning and researching new technologies. I have good coding standards and documentation habits. I am looking for some challenging and rewarding part-time jobs that can utilize my skills and abilities.
    Featured Skill Hadoop
    Apache Hadoop
    Apache Spark
    C#
    SQL
    ChatGPT
    Java
    Python
  • $999 hourly

    • 0.0/5
    • (0 jobs)
    Featured Skill Hadoop
    Oracle
    Greenplum
    Apache Hive
    Business Management
    Management Skills
    Apache Hadoop
    Database Management
    Database
  • $50 hourly

    • 0.0/5
    • (2 jobs)
    I'm a fullstack developer with many experiences in building websites / big-data applications / cluster maintenances. Have the ability to do demand analysis / architecture design / project implementation step by step. Tell me what you need, I'll do my best to help you. * Spring / Typescript / React / Vue / PHP / Android / iOS / Bigdata(Hadoop / Spark) * Let's keep in touch. Nothing can not be solved with close communication.
    Featured Skill Hadoop
    TypeScript
    Python
    Apache Hadoop
    Linux
    Tableau
    Spring Boot
    Vue.js
    React
    Apache Spark
    Java
    Cloud Application
    Front-End Development
    Back-End Development
    Big Data
  • $50 hourly

    • 0.0/5
    • (0 jobs)
    I'm a developer experienced in data science. My role primarily involves data collection, processing, and application. Coding is not just a job for me. It's a passion. I find immense joy in the process of writing code and the satisfying sound of my fingers tapping on the keyboard. (1) Proficient in Python programming, familiar with the Pandas data analysis toolkit, well-versed in the sklearn machine learning library, and possessing practical project experience with Python. (2) Familiar with the application development of various commonly used databases, including Oracle, MySQL, SQL Server, MongoDB, and others.
    Featured Skill Hadoop
    Database Management
    Database
    Apache Impala
    Apache Hadoop
    Oracle
    MySQL
    Web Scraping
    Selenium
    ETL Pipeline
    SQL Programming
    Python
  • $50 hourly

    • 0.0/5
    • (0 jobs)
    I possess extensive experience in software development, particularly in the realm of data analysis software, and I am also highly proficient in data analysis and data warehouse construction. Recently, I have been delving into the intersection of Large Language Models (LLM) and data analytics, a challenging yet exhilarating endeavor. My areas of expertise include Java, Spring Boot, SQL, Hadoop, MPP, Spark, and Flink, among others. Additionally, I am capable of undertaking some basic web development tasks. Should you require the establishment of a data analysis platform or a middle platform, I am confident in my ability to deliver a design and architectural solution that will meet your expectations. If you are also exploring the application of large models in data analysis, I welcome the opportunity to engage in discussions and exchange ideas with you.
    Featured Skill Hadoop
    Web API
    Spring Boot
    Elasticsearch
    Architecture
    Database
    Apache Flink
    SQL
    Apache Hadoop
    Java
  • $75 hourly

    • 0.0/5
    • (0 jobs)
    I'm a senior Java developer with over 10 years of experience, specializing in technical R&D and architectural design in the internet industry. My career spans fintech, e-commerce, and enterprise-level software development. I excel at leveraging technology to enhance business efficiency and system stability, with extensive experience in team management and cross-department collaboration. * Deep Java Expertise: Proficient in JVM tuning, concurrent programming, and source-level optimization (e.g., HashMap, ConcurrentHashMap). Skilled in applying design patterns to high-concurrency and high-availability system architectures. * Full-Stack Development Capabilities: 1. Backend Frameworks: Spring ecosystem (IOC/AOP/Transactions), Mybatis, Hibernate, and adaptation/optimization of in-house frameworks (e.g., PayPal Raptor). 2. Middleware & Big Data: Redis cluster deployment and maintenance, Kafka log processing, ElasticSearch for business scenarios, and Hadoop ecosystem (Hive/HBase) for data cleaning and storage. 3. Frontend & Mobile: Vue3 + ElementUI/Ant Design frontend development, cross-platform mobile practices with Uni-app/Flutter. * DevOps: Proficient in Docker + K8s for microservice containerization, and Maven/Gradle build tool optimization. * System Architecture & Performance Optimization: Led multiple large-scale project overhauls, such as PayPal’s data anomaly alert system and SAP ERP metadata workflow upgrades, achieving a 30%+ reduction in code volume, 5% increase in interface throughput, and 20% shortening of deployment cycles.
    Featured Skill Hadoop
    Apache Spark
    Apache Hadoop
    DevOps
    JavaScript
    Vue.js
    Elasticsearch
    MySQL
    Redis
    Apache Kafka
    Spring Cloud
    Spring Boot
    Java
  • $400 hourly

    • 0.0/5
    • (0 jobs)
    I am a solutions expert specializing in the architecture design and technical implementation of enterprise-level big data platforms. I excel at building highly reliable and high-performance data infrastructures from scratch and promoting the deep application of data intelligence in business scenarios.
    Featured Skill Hadoop
    Python
    Java
    Apache Hadoop
    ETL Pipeline
    Apache Flink
    Apache Kafka
  • $25 hourly

    • 0.0/5
    • (0 jobs)
    * I'm experienced in Java and Spring Frameworks for building websites or microservice * I'm experienced in Hadoop for building data warehouse of enterprise
    Featured Skill Hadoop
    Java
    Big Data
    Front-End Development
    Apache Hadoop
    Apache Spark
  • $30 hourly

    • 0.0/5
    • (0 jobs)
    自我评价 本人有较强的学习能力,做事用心,有较强的责任心和团队意识.在微服务，大数据领域有丰富的经验，主要使用Java，对spring，springboot,springcloud都熟练，有丰富的项目经验。
    Featured Skill Hadoop
    MyBatis
    Redis
    Java
    MySQL
    Apache Hadoop
    Apache Hive
    Apache Kafka
  • $15 hourly

    • 0.0/5
    • (1 job)
    Hello there! Are you searching for a skilled Data Engineer for your project on Upwork? Look no further! As a Data Engineer with 10 years of development experience, including over 6 years of specialized expertise in data development and more than 3 years in Java development, I am well-equipped to handle your project requirements. My services: - Various data processing tasks - SQL scripting and optimization - Python scripting for data manipulation and analysis, including web scraping - Java backend code development - Development of Data Warehousing & ETL Software My skills: - Java, Python, Scala, Shell scripting - SQL, MySQL, PostgreSQL, Hive - Big Data technologies such as Spark, Hadoop, Kafka, and Airflow My experience: - Designing and implementing efficient data pipelines for large-scale data processing - Developing SQL scripts to extract, transform, and load data across various platforms - Creating Python scripts for data manipulation and analysis - Building Data Warehousing & ETL Software to ensure seamless data integration and transformation - Developing Java backend code for data-centric applications I am eager to collaborate with you and contribute to the success of your project as a dedicated and experienced Data Engineer. Let's connect and discuss how I can help you achieve your objectives.
    Featured Skill Hadoop
    Data Chart
    Data Warehousing & ETL Software
    Hive
    PostgreSQL
    MySQL
    Linux
    Apache Kafka
    Apache Hadoop
    Apache Airflow
    Apache Spark
    SQL
    Scala
    Python
    Java
  • $25 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 REACT, NEXT.JS, JAVASCRIPT, PHP
    Featured Skill Hadoop
    Apache Hadoop
    CSS
    MySQL
    PHP
    JavaScript
    Python
    HTML
  • $60 hourly

    • 0.0/5
    • (0 jobs)
    I am a Senior Java Development Engineer at China Telecom 1. Mainly proficient in Java, proficient in using C and C++languages, and flexible in using microservice technologies such as Spring cloud and Spring boot 2. Proficient in using Docker, Redis, Nacos, Setata, Mybatis Puls, and Hadoop data parsing and processing capabilities 3. Proficient in using MySQL database operations and Elasticsearch search engine 4. Capable of SQL tuning, architecture planning, capacity and performance management 5. Familiar with data warehousing and commonly used big data technologies; Capable of independently completing multi-threaded programming Regular communication is important to me, so let's keep in touch
    Featured Skill Hadoop
    Vue.js
    Linux
    NGINX
    Apache Kafka
    Apache Hadoop
    MyBatis
    Docker
    Elasticsearch
    Redis
    MySQL
    Spring Cloud
    Spring Boot
    Java
  • $30 hourly

    • 5.0/5
    • (1 job)
    Passion for software research and development, self-motivated, team spirit; 10+ years R&D experience, proficient in Java and C++; Open-minded, able to work under high pressure; Exceptional problem-solving ability;
    Featured Skill Hadoop
    Android App Development
    iOS Development
    Docker
    JavaScript
    Apache Hadoop
    C#
    C
    NGINX
    Spring MVC
    Spring Boot
    Elasticsearch
    SQL
    Redis
    C++
    Java
  • $10 hourly

    • 0.0/5
    • (0 jobs)
    自我评价 ETL开发:熟练使用flinkcdc,datax等工具,设计和实现高效的ETL流程,确保数据的准确,及时地从源到目标. 脚本和自动化: 精通Python和SQL等编程语言,致力于脚本编写和自动化,提高工作效率. 具备较强的学习能力和适应能力,能够迅速掌握新的知识和技能,同时能够独立完成任务且具有较高的工作效率.
    Featured Skill Hadoop
    ETL
    ETL Pipeline
    Apache HTTP Server
    Apache Hadoop
    Data Extraction
  • $25 hourly

    • 0.0/5
    • (0 jobs)
    I am a skilled Backend Developer with a strong focus on Java programming and data synchronization. With a passion for building scalable, high-performance systems, I specialize in developing robust backend solutions that ensure data consistency and reliability across diverse platforms. - Backend Development: Proficient in designing and implementing backend systems using Java, optimizing for performance and scalability. - Data Synchronization: Expertise in syncing large-scale datasets across systems with a focus on real-time data consistency and conflict resolution. - Big Data & Cloud Technologies: Experience working with big data tools like Hive, MR, and cloud platforms to optimize data processing workflows. - System Architecture: Designing efficient system architectures to support high-concurrency and large-scale data processing. - Problem Solving: Proven ability to tackle complex technical challenges and deliver optimized solutions that drive business success.
    Featured Skill Hadoop
    Web Application
    Docker
    MapReduce
    MyBatis
    Spring MVC
    Hive
    Apache Hadoop
    MySQL
    Spring Boot
    Java
    Web Development
  • $10 hourly

    • 0.0/5
    • (0 jobs)
    Hello, I’m Drake Huang – Java Developer & Big Data Enthusiast I’m a dedicated Java developer with years of experience building scalable, high-performance software solutions. Based in Fujian, China, I specialize in big data processing, real-time streaming, and backend development, with a strong focus on technologies like Apache Flink, ElasticSearch, SpringBoot, Kafka, and more. What I Bring to Your Project: Proven Skills in Java & Big Data: I’m skilled in using Flink for real-time data processing, ElasticSearch for efficient search and analytics, and Kafka for robust data pipelines. My expertise spans a wide range of technical challenges in distributed systems and cloud-native applications. End-to-End Solutions: From designing APIs and integrating databases (MySQL, Redis) to optimizing performance with tools like Nginx, Tomcat, and Logstash, I deliver reliable and innovative solutions tailored to your needs. Adaptable & Results-Driven: I thrive in collaborative environments, communicating effectively with clients to ensure project success. I’m fluent in English and committed to delivering high-quality outcomes on time. Why Hire Me? I bring a deep understanding of modern technologies, ensuring your project is efficient, secure, and future-proof. As a passionate problem-solver, I’m ready to tackle your challenges with precision and creativity, whether it’s building data pipelines, optimizing search engines, or developing robust backend systems. I’m available for full-time, part-time, or project-based work—let’s connect to discuss how I can help you succeed!
    Featured Skill Hadoop
    Apache Hadoop
    Spring Boot
    Elasticsearch
    Java
    Apache Flink
    Architecture
  • $50 hourly

    • 0.0/5
    • (0 jobs)
    I'm a versatile developer with expertise in AIGC (AI-generated content), Python, Java, and more. I specialize in building efficient ComfyUI workflows to streamline creative and technical processes. Alongside this, I bring solid experience in back-end development, where I’ve worked on designing and implementing robust systems. I’m passionate about leveraging my skills to solve complex problems and deliver high-quality solutions.
    Featured Skill Hadoop
    AI Image Generation
    PyTorch
    PySpark
    Apache Hadoop
    Apache HBase
    C++
    Java
    Python
    Database Management
    Database
  • $15 hourly

    • 0.0/5
    • (0 jobs)
    I'm a data analyst with experience in multiple industries. My areas of expertise are demand analysis, developing data visualization dashboards and data analysis. If you need to build a dashboard, do some data analysis or data preparation, I can help. Knows SQL and Python, Tableau, PowerBI
    Featured Skill Hadoop
    Microsoft Power BI
    Tableau
    Jupyter Notebook
    Python
    Apache Hadoop
    Hive
    SQL
    Machine Learning
    Data Mining
    Data Analysis
  • $30 hourly

    • 0.0/5
    • (0 jobs)
    **Performance Optimization Cases:** - Banking Real-time Risk Control: Reduced Flink Checkpoint time from 12min to 90s via state backend optimization - E-commerce Recommendation System: 300% query throughput boost through HBase RowKey redesign - Log Analytics Platform: 60% hardware cost reduction via Elasticsearch sharding strategy optimization ### 💡 Unique Value Proposition 1. **Full Lifecycle Expertise**: Proven experience from data instrumentation specs to BI visualization implementation 2. **Optimization Methodology**: Created "High-Concurrency System Tuning Guide" adopted by multiple teams 3. **Cutting-edge Practice**: Spearheaded Spark 3.0 Vectorization implementation achieving 5.8x speedup ### 📊 Verifiable Achievements
    Featured Skill Hadoop
    DevOps
    Architecture
    Architectural Design
    Problem Solving
    Apache Flink
    Apache Spark
    Apache Hadoop
    Java
  • $20 hourly

    • 0.0/5
    • (0 jobs)
    2 年数据开发经验,精通 Hadoop,Flink 大数据框架,熟练运用 FlinkSQL,Java 进行数据处理与分析.可独立承担全流程数据仓库搭建,涵盖需求分析,架构设计,ETL 开发.具备数据建模能力,所建模型为业务决策提供关键支持.推动业务增长.擅长跨团队协作,确保项目高效推进,有丰富需求沟通经验.
    Featured Skill Hadoop
    MySQL
    Oracle
    Apache Hadoop
    Apache Kafka
    Apache Flink
    Python
    Java
  • $3 hourly

    • 0.0/5
    • (0 jobs)
    I am a backend developer with 10 years of development experience. I used to be responsible for financial backend development at Shopee and personalized recommendation business at Xiaomi. - I often use Golang and Java. - Familiar with Kafka, Redis, Mysql, Spring, Mybatis, Linux, ElasticSearch, Scala, Spark, Hadoop - Regular communication is important to me, so let’s keep in touch.
    Featured Skill Hadoop
    Linux
    Adobe Spark
    MyBatis
    Spring Boot
    Scala
    Apache Hadoop
    Elasticsearch
    Apache Kafka
    Redis
    MySQL
    Java
    Golang
  • $3 hourly

    • 0.0/5
    • (0 jobs)
    * Personal Strengths Enjoys learning new knowledge, good relationships with colleagues, solves challenging issues in projects, and works actively and diligently.
    Featured Skill Hadoop
    Python
    Apache NiFi
    English
    Japanese
    Apache Hadoop
    Java
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