* Technical Lead* React App Architecture* Server-side API ImplementationTechnical team lead for a small remote team located in India developing a map-based search tool built on a React/Redux infrastructure. Made architectural decisions, reviewed code, and worked with the principal stakeholder to organize and prioritize tasks for an initial release. Wrote code for server-side implementation of a REST API, addressed issues with ElasticSearch and AWS ElasticBeanstalk deployments. Implemented data purge and migration from RDS MySQL to serverless Aurora, saving 70% on monthly database costs.

* Cloud Architecture* AWS Development(Lambda, SQS, SNS, S3, DynamoDB, GatewayAPI)* Infrastructure and Operations(CloudFormation, Jenkins)Lead cloud developer on a collaborative decision making platform using a React front end and a serverless AWS backend. Transitioned a junior team to more formal development cycle by creating a versioning scheme, defining and documenting build and qa procedures, and creating a reliable build system. Development responsibilities included cloud architecture, NodeJS development, and build system implementation. Created CloudFormation templates to reliably deploy dev, qa, and production environments creating and updating resources like: DynamoDB, Cognito, SNS, SQS, Lambdas, S3, CloudFront Distributions, and Edge Lambdas, as well as configuring security policies. Wrote Lambdas in NodeJS and developed scripts for updating and initializing data.Designed and implemented a data integration service synchronizing application data through a partner's rest api. Leveraged SQS and a serverless architecture to parallelize data processing. Analyzed and validated raw data samples using Pandas library within Python Jupyter Notebook.

* Team Mentoring* AWS Development(EC2, ECR, Gateway API, S3)* Micro-service DevelopmentMentored and trained a small team on the use of AWS, Docker, and continuous integration to remove development bottlenecks and ensure consistent and reliable results. Implemented release procedures and codified them in Jenkins with a series of jobs and pipelines backed by Jenkins Job Builder. Worked on a number of projects as a senior developer designing features and writing code(Java and Python).Dockerized server components and created volume archives of customer and test data, reducing system setup time from 2 days to 30 minutes. Wrote documentation and scripts allowing team members to populate and run specific versions of a complex infrastructure comprised of a range of technologies, like ElasticSearch, Neo4j, and Java-based services.Created a search micro-service using Swagger definitions for both client and server-side code generation. Built the server-side REST implementation on Spring-boot using the delegation model. Migrated Elasticsearch 1.7.5 to 5.6.3 and implemented querying and indexing using Elasticsearch java API's.Designed a REST API for a map navigated information dashboard, defining the schema and endpoints in Swagger. Used swagger code generation to create a client-side API(javascript) and server-side(Python-Flask) stubs. Setup a private NPM Registry, and a private Python repository to store these generated packages. Implemented endpoints in Python and created all dependent Docker images needed for local development and AWS deployments.

* Lead Cloud Developer* AWS Development(Terraform, Lambda, Gateway API, EC2, SQS, DynamoDB)* Infrastructure and OperationsPrimary AWS developer on a team building and scaling a product based on a complex mathematical solver. Designed a service architecture linking a variety of cloud resources like Lambdas, EC2 services, S3, and DynamoDB through SQS and Gateway APIs. Responsibilities included infrastructure development through Terraform, CICD implementation through Jenkins Job Builder, coding features in Java, and mentoring a team new to AWS.Cloud Team Development- Created infrastructure and procedures allowing developers to share services and collaborate during the development cycle. Wrote single-click Jenkins Jobs letting developers create entire or partial AWS environments for deployment and testing. The same infrastructure was then used for CICD builds and QA environment deployments.API Development - Wrote swagger APIs and model definitions, using those definitions to generate code and AWS gateway implementations. Debugged Lambda and DynamoDB performance problems, coordinating with QA to produce realistic load and concurrent usage scenarios. Implemented a runtime lookup service for AWS lambdas to define and lookup REST service dependencies.

* Machine Learning- model development, validation, and deployment* AWS- Lambda, Gateway, ECS, EC2, S3* Server-side java- web services, multithreaded code, spring configured components* Team Development- interviewed and qualified ML candidatesDocument Classification – reduced manual document review by 50%, auto-processing 20k+ documents a day. Full cycle development of a document classifier: project planning, requirements collection, feature discovery(pandas/scikit-learn), model development, data collection(MySQL and ElasticSearch), application integration(swagger/REST), and production auditing. Decision-tree model implemented in python/scikit-learn, deployed on maven generated docker images in Amazon ECS service. Image Classification- Trained and deployed an SVM image classification model detecting inappropriate content for K-12 students, processing 2 million images a day. Integrated high-performance classification code through JNI exposing it through web services. Developed an image auditing platform(struts/JSP/jetty/python) and trained a team of auditors to categorize millions of images for training and testing new models. Implemented video classification using OpenCV and FFMpeg to extract and analyze frames for classification.Java Development- Designed and implemented a student social network and a filtered YouTube interface(Tomcat/Struts/Hibernate/Spring/ElasticSearch) for an educational communication platform focusing on student monitoring and safety with 300k+ logins a day. Designed Elastic search schema, implemented indexing, analyzed clusters for tuning and resource allocation.R&D Lead- worked directly with the CEO to explore, prototype, and pilot proprietary technologies with potential business partners. Participated in both high and low level planning meetings, implemented and documented APIs, collaborated with partners to finalize requirements and set expectations.

* Server-side Java (Jetty/Hibernate)* Performance tuning (JMeter, Sun VM on Solaris)* Agile/XP Development (pair programming, continuous integration) Implemented web services for a high volume web site, gay.com, using java servlets to replace CGI code, handling 10 times the number of requests per server. Test driven development(JUnit/IntelliJ) of server-side Java components(Jetty 4.x/5.x, Hibernate 2.x, C3P0). Developed MVC framework for dynamic HTML generation, tuned and enhanced existing components. Maintained and enhanced Lucene search components and indexes.

* Image and Text Classification* Team Development- recruiting, process and procedures* Server-side Java(JDBC, Java Threading) Established a development team and implemented image and text filters for a student safety platform handling 35,000+ logins per day. Interviewed developers, created build procedures and scripts, created source and database versioning schemes, and collected requirements. Integrated LTU Technologies image filtering technology to filter inbound, outbound, and URL linked content.

* Java Programming/Middle Tier Business logic * Web Services Development (HTML, Javascript, JSP, Oracle, MSSQL) Developed an executive management dashboard in an enterprise project management application built on Weblogic 8.1 and Oracle/MSSQL. Coded SQL for Oracle 9i & MSSQL, middle tier API in Java, and front-end elements in JSP/ HTML/Javascript/XSL. Wrote the functional specification for the new features along with detailed test scripts.

* Team Lead* Server-side Java(J2EE, JDBC, PLSQL)Lead a team from design to deployment of a subscription-based marketing portal for client, IGN Entertainment. Built and configured Oracle 9i databases containing 20 million rows of data and designed queries using standard SQL and PLSQL. Designed and implemented persistence mechanism using JDBC and optimized with global and user level caching mechanisms. Performed builds using Apache Ant (1.5.4), deployed and configured application in Tomcat 4.1.27.

* J2EE Development* Development Process and ProceduresDesigned and implemented an integration between financial management system and MRO Software’s MAXIMO Asset Management System. Utilized MAXIMO Enterprise Adaptor interfaces and Oracle PLSQL programming to effect the integration with PeopleSoft FMS 7.5. Designed source control procedures and managed installation and configuration of Weblogic 6.1 based MAXIMO application in a Solaris/Oracle 8i environment. Installed and configured WebMethods B2Bserver and MRO specific integration packages. Attended Actuate Reports training, wrote reports, installed and configured Actuate Report Server.

* Team Lead and Application Architecture* J2EE Development(EJB, Servlets, JSP, WLCS) Team lead, architect, and programmer for 2 major web projects built on Weblogic Commerce Server 3.5, Weblogic Server 6.0, Apache Web Server, Oracle 8.1.7, and Microsoft Digital Rights Manager. Implemented data access classes, session management components(Servlets, JDBC, PL/SQL), credit card service integration (CyberSource payment services), tax calculation components(EJB, PCs, Webflow), and front-end elements(JSP, javascript, HTML, STRUTS). My team lead responsibilities included hiring team members, developing iteration schedules, delegating development tasks, reviewing designs, and dictating general development process to insure timely delivery of a quality product.

* Team Lead* Object Oriented Analysis and Design (OOAD)* J2EE Developmen(EJB, JMS, JTS, Servlets, JSP)Built a web application allowing pharmaceutical companies to collaborate using the Weblogic 5.1 Application Server, Apache Web Server and DB2 database. Gathered requirements, designed the architecture and lead a team of 4 developers from start to completion of the project. Created use cases and UML diagrams in GDPro, built a prototype, defined development iterations, delegated tasks and mentored a team of junior developers. Utilized a commercial java application server for EJBs, JSPs, Servlets, JMS, connection pools and JTS.

* Engineering infrastructure and procedures * Server-side Java(Servlets, JSP)Launched a B2C website, taking the project from POC to deployment by transitioning development from offsite consultants to in-house development, defining build procedures, versioning schemes, QA procedures, load tests (Mercury Interactive), installing and configuring bug tracking software (TeamTrack), source control software (Visual SourceSafe), and replicating Oracle 8.1.5 databases for development and QA use. Migrated the presentation layer from Enhydra XMLC templates to JSPs to create a better separation between the application and the presentation layer. Analyzed performance using JProbe and removed bottlenecks, reducing average response times from 8 seconds to less than a second.

* Product Development* Server-side JavaDeveloped an opportunity Workflow module for a sophisticated hiring automation application built on the SilverStream application server. Workflow development involved writing specifications, database design and both client and server-side Java programming. Developed an interactive scheduling system using low-level AWT components, server-side business objects and database elements(ERWin for design). Designed and implemented a web based employee referral system integrating with the hiring application using Servlets to post open positions, upload resumes and report on candidate status.

* System Architecture(n-tier CORBA)* Search Engine integrationDesigned and implemented a CORBA/Java Enterprise Knowledge Management application based on Inprise’s Visibroker ORB for Java, focusing on base-object development, security, and information retrieval. I designed and implemented a search API for the application and integrated it with Autonomy’s Dynamic Reasoning Engine.

* Java Application Development* Web Site Admin(CGI-BIN, HTML)* Unix Sys AdminProposed and developed an interactive GUI(Java 1.0x) for scientists to represent and manipulate geologic data for modeling(https://pubs.er.usgs.gov/publication/ofr98203). Programming tasks involved: file-IO, event handling, GUI design, and integration with external processes. Maintained public and private web sites(HTML, CGI-BIN, PERL). Unix System Administration responsibilities(SunOS 4.1.3 and IRIX 6.1) included adding and repartitioning disks, installing software, creating and maintaining FTP sites, purchasing and installing peripheral devices, adding users, backing up and restoring file systems.

*PVWAVE & Excel Macro programming* Image processingProcessed NASA shuttle-based synthetic aperture radar(SAR) images on UNIX Sun-stations. Wrote programs in PV-WAVE and Excel to calibrate, filter and plot climatic data. Picked control points and warped images using ERMAPPER. Awarded stipend by NASA to study retreat of South American glaciers using shuttle-based radar images.