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  4. (Current) Apache Avro Developers
  • $20 hourly

    • 4.6/5
    • (172 jobs)
    I’m a software engineer with more than 10 years of experience working in developing big-data and AI (ML & DL) systems. I have extensive experience in creating scalable machine learning data science applications & high-load web applications. I have extensive experience working as a consultant for top Fortune-100 companies. My main areas of expertise are: - Python 2/ 3, R, Scala, Java, PHP - Machine Learning: Regression, Decision Trees, PCA, SVD, Clustering, Image Processing - NLP: Bag of words, LDA, LSI - Deep Learning: Word2Vec, Neural Networks, CNNs, LSTMs (image, text, time-series) - Frameworks: Play, Django/ Flask, Spring, Symfony - Databases: SQL (MySQL, PostgreSQL), NoSQL (MongoDB, Hbase, Cassandra), Druid - Distributed Tools: Storm, Kafka, RabbitMQ, I am very proficient with data structures and algorithms. I have designed very sophisticated and scalable architectures for different cloud providers including AWS, Rackspace.
    vsuc_fltilesrefresh_TrophyIcon Apache Avro
    Microsoft Power BI Development
    Artificial Intelligence
    MERN Stack
    PHP
    Apache Hadoop
    NoSQL Database
    MEAN Stack
    Microsoft Power BI
    Microsoft Power BI Data Visualization
    Ad Server
    Data Scraping
    Machine Learning Framework
    Machine Learning Model
    Machine Learning
    Python
  • $45 hourly

    • 4.9/5
    • (22 jobs)
    I am a software (mostly Java) developer with more than 10 years of experience. I have started from developing fully-featured enterprise systems on Java and ended up building complex data processing frameworks that solve all kind of big-data world tasks. I am ready to create architecture for reliable and amazingly fast ETL process with further ad-hoc analytics and data visualization. Was working mainly in banking and telecommunication area. I am a fan of new architecture approaches like CQRS. Has good communication skills, high level of motivation, open-minded. Programming​ ​ languages: Java,​ ​​​JavaScript, Python Big​ ​ data​ ​ tools: Kafka, Hadoop,​ ​ Zookeeper,​ ​ Spark,​ ​ Storm, HDFS, OOzie Full-featured​ ​ web​ ​ frameworks: Spring​ ​ Boot Databases: PostgreSQL,​ ​ MySQL Data warehouses: Vertica
    vsuc_fltilesrefresh_TrophyIcon Apache Avro
    Data Science
    Amazon Web Services
    Amazon EC2
    AWS Lambda
    Spring Boot
    App Development
    DeFi
    ETL Pipeline
    Apache NiFi
    DApp Development
    Blockchain Development
    Apache Kafka
    Java
    Python
    Apache Flink
  • $100 hourly

    • 5.0/5
    • (42 jobs)
    I have over 4 years of experience in Data Engineering (especially using Spark and pySpark to gain value from massive amounts of data). I worked with analysts and data scientists by conducting workshops on working in Hadoop/Spark and resolving their issues with big data ecosystem. I also have experience on Hadoop maintenace and building ETL, especially between Hadoop and Kafka. You can find my profile on stackoverflow (link in Portfolio section) - I help mostly in spark and pyspark tagged questions.
    vsuc_fltilesrefresh_TrophyIcon Apache Avro
    MongoDB
    PySpark
    Data Migration
    Apache Airflow
    Python
    Data Warehousing
    Data Scraping
    Data Visualization
    ETL
    Apache Kafka
    Apache Hadoop
    Apache Spark
  • $23 hourly

    • 4.9/5
    • (24 jobs)
    "He is great to work with, patient and his team is versatile. Thanks." "Shreeram is proficient in the development of webapps and was able to support my limited knowledge of what I needed with his personal expertise and creativity: I will come to him with all further work regarding front-end development in Python." "Accurate and fast work, skilled and trustworthy." I have 5+ years of experience in Developing Web-based apps. My web apps are being used by thousands of users daily. I also have extensive experience with maintaining the apps and adding new features to these products. ✅ Technology slack: ➡ MEAN ➡ MERN ➡ Python, ➡ Django, Django REST-Framework, Saas ➡ Docker, ➡ GraphQL ➡ Python-based APIs, Django REST-Framework, Django REST Swagger (OpenAPI) and Custom Authentication. ➡ Test-Driven Development: PyTest, Mixer, Mock, Django Request Factory, Django REST-Framework APIClient & Coverage. ✅Where Python and Javascript could be applied? ➡ Digital Marketing, Real Estate, E-learning, Healthcare, Fintech, Business intelligence, Fashion, Telecom and many more. This is the advantage of these languages. They could be applied to almost every task and business. ✅ Benefits if you go with me: ➡ Experience of over 5 years in serving clients in Europe, America, Asia, Middle East ➡ I will provide 1 month of free maintenance under the scope of the project based on contract size where I will be responsible for fixing any bug that will occur from the client side. ➡  I'm ready to provide development updates on a Daily or Weekly basis as per your need. ➡  Instantly reply ✅ Why Django framework is mostly used? ➡ Fast backend. ➡ Machine learning options .
    vsuc_fltilesrefresh_TrophyIcon Apache Avro
    GraphQL
    Docker
    RESTful Architecture
    Dart
    CSS 3
    Flask
    Microsoft Azure
    SQLite
    English
    Django
    React
    HTML5
    PostgreSQL
    Python
  • $75 hourly

    • 5.0/5
    • (4 jobs)
    Designing a Research Study? Worried about Limited Sample Sizes? Have data that is too Large and Unwieldy to be Interpreted? I'm your Biostatistician! Experienced consultant on projects at all stages, and I work to deliver excellent quality reports and products. Experience and skills include: * Project and Study Planning * Data Collection and Monitoring * Statistical Algorithm or Model Implementation * Statistical Graphics and Interpretation * Publication Support * R and SAS programming
    vsuc_fltilesrefresh_TrophyIcon Apache Avro
    Quantitative Analysis
    Academic Writing
    Mathematics Tutoring
    Tutoring
    Data Science
    Biostatistics
    Data Modeling
    Statistics
    Data Analysis
    R
    SAS
  • $99 hourly

    • 5.0/5
    • (1,457 jobs)
    TOP-RATED FREELANCER SINCE 2013 🏆 13+ Years of Experience 🏆 $300K+ Earned 🏆 99% Success Rate 🏆 1450+ Successful Projects On Upwork 🏆 1880+ hours of work completed for various clients 🏆 700+ Satisfied Clients 🏆 Top-Rated freelancer status since 2013 🏆 Work on Weekends 🏆 WordPress Speed Optimization Specialist 🏆 WordPress Virus/Malware Removal Specialist I'm a self-taught Web Developer, System Administrator, SEO Analyst, Digital Marketer, and much more. I have working experience with HTML5, CSS3, JavaScript, jQuery, PHP, MySQL, WordPress, Linux, WHM, cPanel, and much more. Service Description: ✅ Website Analysis and Recommendations ✅ Web Analytics and Landing page optimization ✅ Website optimization(Front End & Back End) ✅ Search Engine Optimization ✅ ON-SITE Optimization ✅ SEO Audit, Keyword Research ✅ Content Audit/Content Analysis ✅ Domain Analysis ✅ Moz/SEMRush/Ahrefs/Majestic/Screaming Frog/URLProfiler ✅ Ahrefs SEO Audit Tool ✅ Google Page Speed insights ✅ Google Search Console ✅ Google Analytics GA 4 ✅ Google Ads ✅ Google Tag Manager ✅ Google Workspace/Emails ✅ Speed Optimization, Website loading time improvement ✅ WordPress Speed Optimization ✅ Woocommerce Speed Optimization ✅ Joomla Speed Optimization ✅ JavaScript Minification ✅ CSS Minification ✅ jQuery Minification ✅ HMTL Minification ✅ Image Optimization ✅ Image Scaling Content Delivery Network Integration: ✅ Cloudflare ✅ MaxCDN ✅ Amazon S3 Bucket & CloudFront ✅ KeyCDN ✅ CDNsun Site Migration/Host setup ✅ Domain Management ✅ Email Deliverability Improvement ✅ Web Host Manager set up and troubleshooting ✅ Website Cloning ✅ WordPress Cloning ✅ WordPress Transfer ✅ WordPress Malware Removal ✅ WordPress Virus Removal ✅ WordPress Hacked Content Removal ✅ WordPress Security ✅ DNS Setup ✅ Email Setup ✅ Nameservers Forwarding and Redirects ✅ MX Records ✅ SPF Records ✅ DKIM Records ✅ DMARC Records SSL installation and troubleshooting on shared/VPS/Dedicated servers ✅ SSL/HTTPS Installation/Configuration ✅ WordPress HTTP to HTTPS migration ✅ Joomla HTTP to HTTPS Migration ✅ Broken/Mixed content HTTPS issues Third-party scripts integration ✅ Clicky ✅ HotJar ✅ Statcounter ✅ Facebook Pixel ✅ Hubspot ✅ Infusionsoft Server Optimization ✅ Apache Optimization ✅ Nginx Optimization Web Hosting Setup and Management: ✅ Amazon Web Services ✅ Google Cloud ✅ Digital Ocean ✅ Linode ✅ Cloudways ✅ Kinsta ✅ WPEngine ✅ Pressidium ✅ Godaddy ✅ HostGator ✅ Bluehost
    vsuc_fltilesrefresh_TrophyIcon Apache Avro
    Apache HTTP Server
    DNS
    SEO Audit
    Technical Support
    SSL
    DigitalOcean
    Google Analytics
    WordPress Malware Removal
    Screaming Frog SEO Spider
    WordPress SEO Plugins
    Page Speed Optimization
    Search Engine Optimization
    WordPress
    Yoast SEO
    Website Optimization
  • $70 hourly

    • 5.0/5
    • (41 jobs)
    𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗲𝗱 𝗗𝗮𝘁𝗮 𝗣𝗿𝗼𝗳𝗲𝘀𝘀𝗶𝗼𝗻𝗮𝗹 with 𝟲+ 𝘆𝗲𝗮𝗿𝘀 of experience and hands-on expertise in Big Data, Data Engineering, Data Warehousing and Data Analytics. Looking for someone with a broad skill set, minimal oversight and ownership mentality then contact me to discuss in detail the value and strength I can bring to your company. 𝙄 𝙝𝙖𝙫𝙚 𝙚𝙭𝙥𝙚𝙧𝙞𝙚𝙣𝙘𝙚 𝙞𝙣 𝙩𝙝𝙚 𝙛𝙤𝙡𝙡𝙤𝙬𝙞𝙣𝙜 𝙖𝙧𝙚𝙖𝙨, 𝙩𝙤𝙤𝙡𝙨 𝙖𝙣𝙙 𝙩𝙚𝙘𝙝𝙣𝙤𝙡𝙤𝙜𝙞𝙚𝙨: ► BIG DATA & DATA ENGINEERING Apache Spark, Hadoop, MapReduce, YARN, Pig, Hive, Kudu, HBase, Impala, Delta Lake, Oozie, NiFi, Kafka, Airflow, Kylin, Druid, Flink, Presto, Drill, Phoenix, Ambari, Ranger, Cloudera Manager, Zookeeper, Spark-Streaming, Streamsets, Snowflake ► CLOUD AWS -- EC2, S3, RDS, EMR, Redshift, Lambda, VPC, DynamoDB, Athena, Kinesis, Glue GCP -- BigQuery, Dataflow, Pub/Sub, Dataproc, Cloud Data Fusion Azure -- Data Factory, Synapse. HDInsight ► ANALYTICS, BI & DATA VISUALIZATION Tableau, Power BI, SSAS, SSMS, Superset, Grafana, Looker ► DATABASE SQL, NoSQL, Oracle, SQL Server, MySQL, PostgreSQL, MongoDB, PL/SQL, HBase, Cassandra ► OTHER SKILLS & TOOLS Docker, Kubernetes, Ansible, Pentaho, Python, Scala, Java, C, C++, C# 𝙎𝙤𝙢𝙚 𝙤𝙛 𝙢𝙮 𝙢𝙖𝙟𝙤𝙧 𝙥𝙧𝙤𝙟𝙚𝙘𝙩𝙨 𝙞𝙣𝙘𝙡𝙪𝙙𝙚𝙙 - Designing Big Data architectures for the financial and telecom sector to power their data-driven digital transformation. - Implementing Data Lake and Data Warehousing solutions using Big Data tools. - Developing ETL workflows using Apache Spark, Apache NiFi, Streamsets, Apache Airflow, etc. - Hands-on experience with Big Data and Cloud technologies in implementation and architectural design of Data Lake and Data Warehouse. - Experienced in working with Cloudera, Hortonworks, AWS, GCP, and other Big Data and Cloud technologies. 𝙒𝙝𝙚𝙣 𝙮𝙤𝙪 𝙝𝙞𝙧𝙚 𝙢𝙚, 𝙮𝙤𝙪 𝙘𝙖𝙣 𝙚𝙭𝙥𝙚𝙘𝙩: - Outstanding results and service - High-quality output on time, every time - Strong communication - Regular & ongoing updates Your complete satisfaction is what I aim for, so the job is not complete until you are satisfied! Warm Regards, 𝗔𝗻𝗮𝘀
    vsuc_fltilesrefresh_TrophyIcon Apache Avro
    Solution Architecture Consultation
    AWS Lambda
    Apache NiFi
    ETL Pipeline
    Data Management
    Data Warehousing
    AWS Glue
    Apache Spark
    Amazon Redshift
    Apache Hadoop
    ETL
    Python
    SQL
    Marketing Analytics
    Big Data
    Data Visualization
  • $25 hourly

    • 4.8/5
    • (33 jobs)
    Hands on with server side solution using Spring, Hibernate, J2EE 7 and LAMP (PHP) stack for the last 15 years. - Proficient with building distributed fault-tolerant, soft-real time, microservices based system using vert.x and dropwizard. - Proficient with RDBMS like MySQL, PostgreSQL; NoSQL like Redis, Riak and JCR repositories like ModeShape. - Proficient with UI and mobile hybrid apps like ExtJS 4/5, GWT 2.7, JQuery UI, JQuery Mobile, ExtJs Touch, Angular, Ionic and Cordova - Hands on with "process" based and "case" based implementation using BPMN 2.0 and CMMN 1.0 using Camunda process engine. - IOT sensor based solutions using Arduino/Raspberry PI/BeagleBone and analytics using Esper Complex Event Processing engine for realtime analytics less > Proficient in Spring 2.x framework and AOP using AspectJ AOP framework. > Proficient in building agent based systems using OSGI specs (Equinox and Knopflerfish containers) > Dealt in indigenous and component-based J2EE based solutions for clients. > Proficient in using OSS tools like Ant, Log4j, Tomcat, Hibernate, MySQL etc. > Hands on different Operating systems including Linux, Solaris and Win2k. > SCRUM and UML certified
    vsuc_fltilesrefresh_TrophyIcon Apache Avro
    FHIR
    Database Design
    Business Process Model & Notation
    API Integration
    MySQL
    Microservice
    Node.js
    Java
    Docker
    ArangoDB
    Spring Boot
    PostgreSQL
  • $95 hourly

    • 4.9/5
    • (1 job)
    My career objective is to become an expert in large scale data processing. I love to work with data. Currently, at University of Chicago, we build the whole technology stack introduced in Gen3.org that is currently the core technology of several big data systems, each of which has 10 petabytes (PB) of scientific data in average, such as Genomic Data Commons, BRAIN Commons, Bionimbus Protected Data Cloud, BloodPac, Kids First, Account, Environmental Data Common. The largest one, Genomic Data Commons, has 25 PB of data.
    vsuc_fltilesrefresh_TrophyIcon Apache Avro
    Terraform
    Node.js
    Apache Spark
    Continuous Integration
    SQL
    Python
    Database
    Amazon Web Services
    Elasticsearch
    Distributed Computing
    ETL
    ETL Pipeline
  • $30 hourly

    • 4.5/5
    • (4 jobs)
    I am a senior Java developer having more than 11 years of professional experience. A self starter, proven team player and always accepted the challenges that allows me to learn new skills while utilising my hard-earned skills - Experienced in various areas in the design, development and maintenance of software applications - Well versed in developing applications based on SOA (SOAP/Rest). - Experienced in creating CICD pipeline and automation - Have experience in creating applications from scratch. - Have good knowledge in Spring Boot, Java, NodeJS, ExpressJS, docker and kubernetes - In addition to working independently in projects, I am well able to create value with a team. - Experienced in writing test automation (end-to-end) and load test scripts. Specialties: Java, Kotlin, Spring boot, NodeJS, ExperssJS, docker, kubernetes, Kafka, JPA (Hibernate), JUnit, Cucumber, JSON, SOAP, Oracle Service Bus, Kong Gateway, Rabbit MQ, IBM MQ, Jasper Reports, Memchached, ISO8583, ISO-20022, IBM WebSphere Commerce Databases: PostgreSQL, Oracle, MySql, DB2, SQL Server, MongoDB, CouchDB, Radis Developing tools: IntelliJ, Gitlab, Docker, Kubernetes, Atlassian suite (Jira, Confluence), Eclipse, Maven, Jenkins, Tomcat, Weblogic, IBM WebSphere VCS: Git, TFS, Subversion, Azzure, Gitlab Professional Experience: Technical Consultant/Backend Engineer @ HubPay. Was Manager Software Development @ Habib Bank Pakistan, TechWisely Limited, 360training, Halkar and Arizona Computer Services as, - 5+ years as Senior Developer | API Architect & Lead | Manager | Consultant - 11 months were Principle Software Engineer - 1 year 6 months were Senior Software Engineer - 1 year 8 months were Software Engineer - 6 months were Software Engineer
    vsuc_fltilesrefresh_TrophyIcon Apache Avro
    IBM MQ
    ExpressJS
    SOAP
    Node.js
    Cucumber
    JSON
    RabbitMQ
    JavaScript
    Apache Kafka
    Docker
    Hibernate
    JUnit
    Kotlin
    Kubernetes
    Java
    Spring Boot
  • $20 hourly

    • 4.9/5
    • (87 jobs)
    I'm a passionate and versatile Full Stack Developer with 10+ years of experience and a strong background in designing and implementing web applications from concept to production. Specializing in building components and applications using MERN (MongoDB, ExpressJS, ReactJS, and NodeJS) and Angular stack application development. My commitment to continuous learning and improvement has helped me stay ahead of the curve in an ever-evolving industry. I am always eager to learn about new technologies and tools to improve my skillset and offer better solutions to my clients. ◼ Frontend Stack: HTML/, CSS3/LESS/SASS/SCSS, Bootstrap, JavaScript (ES6+)/jQuery, TypeScript, Bootstrap, and Material Design, Angular, JavaScript, Typescript, React, Gatsby, NextJS. JavaScript ◼ Backend: Proficient in Node.js, WordPress/Woo commerce, PHP, API integrations, Python, Django, API development, Java, Ruby, JavaScript, Rust, Golang, Perl, SQL ◼ Frameworks: Django, Ruby on Rails, Laravel, Angular, Express.js, Flask, jQuery, Meteor, CakePHP, AngularJS ◼ Databases: Database Management, MySQL, PostgreSQL, MSSQL, MongoDB, DynamoDB, Redis, and more. ◼ Other: Cross-functional Collaboration, Testing and Debugging, Performance Optimization, Git, Security, Version Control, Github, Bitbucket, Putty, Highcharts, D3.js, AWS, Docker, Kubernetes etc. Major Services Included: ✔Node Js Scripting ✔Rest API development ✔GraphQL API development ✔Express Js Server / Backend Development ✔Database Integration (MongoDB) ✔Websocket integration ✔Stripe Integration ✔UI/UX Research and Design ✔HTML5, JavaScript, React, Context API ✔API de ✔CSS, Bootstrap, Material UI, Sass, Tailwind css ✔NodeJS, Express, Flask for backend development ✔Next JS For multipage Web Applications ✔PWA (Progressive Web Application) ✔MongoDB, Fauna DB ✔REST API and Graph QL ✔CICD with GitHub ✔Deployment to Netlify, Surge, Heroku ✔Very Strong command over Javascript and React If you're looking for a reliable and skilled backend developer to help you build or maintain your web application, feel free to contact me. I would love to discuss your project requirements and see how I can help you achieve your goals.
    vsuc_fltilesrefresh_TrophyIcon Apache Avro
    DevOps
    Website
    Back-End Development
    MERN Stack
    Next.js
    Vue.js
    Laravel
    Microsoft Azure
    Full-Stack Development
    MySQL
    React
    PHP
    Node.js
    TypeScript
    JavaScript
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