Roannel Fernández Hernández
Full-stack Developer at Simbios IT Services
Antwerp, Antwerp, Belgium
Summary
🤩
Rockstar🎓
Top SchoolRoannel Fernández Hernández is a full-stack developer and computer engineer with nine years of experience building web applications and scalable data systems, currently based in Antwerp. He brings deep back-end expertise in Java and PHP (Spring Boot/Cloud, JPA, Symfony) and front-end fluency in JavaScript, CSS/SASS and Bootstrap, alongside hands-on system administration of open-source big data tools like Apache Solr, Nutch, Hadoop and RabbitMQ. An active Apache Software Foundation committer and PMC member for Apache Nutch, he led the index writer configuration scheme and contributed critical fixes to crawling, HTTP handling and indexing pipelines used by a widely adopted web crawler. At the University of Informatics Sciences he operated and developed the Hadoop-backed crawling infrastructure and monitoring tools, and today applies that operational knowledge to production microservices and observability stacks. He combines strong analytical and teamwork skills with a research-oriented interest in information retrieval, semantic web and linked data, making him comfortable at the intersection of applied research and production engineering.
9 years of coding experience
7 years of employment as a software developer
Computer Engineer's degree, Computer Science, 5.47/5.0, Computer Engineer's degree, Computer Science, 5.47/5.0 at University of Informatics Sciences
Spanish, English
Github Skills (15)
crawler10
javas10
nutch10
web-crawler10
webscraper10
webscraping10
java10
crawling10
rabbitmq9
elasticsearchquery8
elasticsearch8
elasticsearch-api8
amazon-elasticsearch8
aws-elasticsearch8
kafka5
Programming languages (2)
Github contributions (5)
apache/nutch
Mar 2017 - Sep 2019
Apache Nutch is an extensible and scalable web crawler
Role in this project:
Back-end Developer
Back-end DeveloperContributions:62 commits, 26 PRs, 9 pushes in 2 years 6 months
Contributions summary:Roannel made numerous commits related to the Apache Nutch web crawler, primarily focused on bug fixes and merging branches. The commits involved changes to core Java files, including modifications to the SegmentReader, HttpBase, ElasticRestIndexWriter, and SolrIndexWriter classes, indicating work on the crawler's data processing, HTTP protocol handling, and indexing components. These changes were related to functionalities like the indexing process, supporting HTTP headers and content and RabbitMQ publisher implementation.
scalableweb-crawlernutchosgiapache
r0ann3l/nutch
Nov 2016 - Mar 2020
Mirror of Apache Nutch
Contributions:85 pushes, 52 branches in 3 years 5 months
javaapachenutch
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