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Work Background
UTrendTvCTO
Jun. 2022Utrecht, Nederland
MongoDBSenior Consulting Engineer
Feb. 2022Utrecht, Nederland
MongoDBConsulting Engineer
Mar. 2018 - Feb. 2022Utrecht, Nederland
MarcopoloniMongoDB Architect
Oct. 2017 - Mar. 2018Campbell, CA
ADARA NetworksNoSql Developer
Aug. 2017 - Oct. 2017San Jose, CaliforniaConfigure Couchbase Server Community Edition to support multiple requirements in $10B project. Install Node 8.4 and openLDAP to architect and implement a JavaScript application that connects a Couchbase Server Community Edition cluster with LDAP server for authentication and authorization. Also install and integrate with Hashicorp Vault for data encryption and to provide secure key store. The application also provides RESTful API endpoints to perform CRUD operations. Use AWS to create Linux CentOS VMs to serve the application on EC2 and configure IPSec to ensure encryption on the wire between database nodes. Enable Linux LUKS encryption at rest by storing database files on separate transparently encrypted storage. MongoDB 034 and MongoDB 310 (Security) courses by MongoDB University
CareVision SolutionsMongoDB Consultant
May. 2017 - Jul. 2017Campbell, CAChart path for MongoDB upgrade from version 2.6 to 3.4 and storage engine change from MMAPv1 to WiredTiger. Write plan to update Linux servers to optimize MongoDB performance Develop script to implement 3-factor replication Analyze query performance and plan indexes based on query utilization
CiscoProgram Manager (MongoDB, Node.js)
Aug. 2016 - Aug. 2017San Jose, CaliforniaResponsible for completing an existing proof-of-concept MEAN application and deploying it to production. The application will dramatically reduce the time needed to resolve customer cases and is currently a finalist to win the Cisco Pinnacle Award. Recognized the need for functional requirements after analyzing existing code and interviewing users. Designed initial architectural diagrams. Discussed SDLC practices with the team to aid in the implementation. Upgraded MongoDB from version 2.6 to 3.2. Specified hardware requirements to maximize MongoDB performance, implemented 3-node replication to ensure availability, and reviewed all queries to ensure usage of current syntax and to determine which indexes are necessary to improve performance. Upgraded Node.js from version 0.10 to version 6.11. Updated deprecated code and corrected flow control practices that resulted in erratic behavior. Stress-tested database and application performance by inserting millions of documents. Uncovered design flaws and determined which indexes and design changes would improve performance in this scenario. Implemented my own recommendations. Implemented separate development environment for testing. Introduced unit tests (mocha and nightwatch), performed code reviews. Setup git. Spearheaded creation of logging microservice using RabbitMQ.
MarcopoloniTechnical Founder/Senior Web Engineer
Oct. 2003 - Aug. 2016Greater Los Angeles AreaIdentified the need to transition our legacy code base from ColdFusion and SQL Server to Node.js and MongoDB. Designed architecture to divide monolithic application into separate services (catalog, cart, checkout, and admin) while still sharing a single database. Modularized and decoupled code. Moved code base to AWS and database to MongoDB Atlas. Created a secure REST API.
Integrated backend with the Quickbooks Online API. Optimize database with indexes based on usage patterns. Planned sharding of log collection.
Use MongoDB aggregation and D3 to build business intelligence reports. Designed and implemented our client-focused e-commerce web site and our entire back-office system. Used ColdFusion, SQL Server, HTML5, JavaScript, jQuery, JSON, AJAX, and CSS3 to implement a complete e-commerce solution, that proved to stand the test of time even when I began pursuing other opportunities. Wrote RESTful API for entire ERP system and created Object Oriented JavaScript modules to consistently consume those web services across all branches of the ERP system. Integrated payment system and shipping quote systems with PayPal, Verisign, USPS, and FedEx. Successfully improved user efficiency by as much as 60% in some areas. Simplified the creation of all future internal applications by ensuring code reuse. Tested code using JSHint, wrote unit tests in Jasmine.js running on node.js. Used d3.js to create marketing intelligence reports with data drawn from our SQL Server database through API calls (AJAX/JSON).
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