Scaling and performance of java backend

Java backend performance consulting

Crypto signal platform, copy trading from profitable trades, aggregated crypto news from twitter.

Backend engineer for scaling and performance.

Developed a Cloud based ERP for tracking distributor’s sales, purchase and inventory forecasting for India's big FMCG brand.- Designed and developed Java system on AWS as lead developer.- Developed integration with SAP and Tally.- Built and managed developer and support team. - Played key role in feature negotiations and project rollout plan with Client Team.

Platform Rewrite:- Built microservices with asynchronous play framework. (Java, Play framework, Spring, SOA, TDD, MongoDB, Postgres, HBase)Data science: Prototype for- Semantic search and tagging on company data. (Java, UIMA, OpenNLP, Lucene)- Finding related companies with existing industry hierarchy. (Java, neo4j)Data pipelines: - Worked on ETL pipelines for data cleaning, enrichment and deduplication. (Java, MapReduce, Pig, Storm) - Built a testing framework for automated testing of ETL process. Java.

Research:Research work and prototyping for experiments on medical text/XML data (AERS drug prescriptions, dailymed, generif and pubmed) using tools like hadoop, mahout, AWS, lucene, NLP lingpipe, metamap etc. Development:Maintained existing systems and developed new in-house database systems in java.1. AERS Research Data Retrieval System:-http://research.cchmc.org/aersDesigned and developed an information retrieval system to facilitate item set mining research on patients records. Salient features:- Lucene based index for keyword search and access to records.- Faceted search index to speed up statistics generation for Association rules.- Algorithm to map noisy prescription text to drugs ontology.- Data prepossessing pipeline for adding new data to system.- Compressed index to half-size using custom mapping of concepts.- Simple interactive UI's for different data presentation needs.2. BacteriaMine:http://insights.cchmc.org/insightsmineBuilt this webapp for bacteria gene data using intermine framework.Wrote ETL’s to integrate data from multiple sources in our PostGreSQL database.

https://ucfilespace.uc.edu/Modified file hosting architecture to implement file sharing services.Added new features and fixed lots of bugs in ruby and javascript code.

Worked on implementation and feasibility analysis of x86 core for high performance server architectures. Proposed and independently developed prototypes for multiple major design flow automation's to reduce custom design efforts.