Darley Stephen, Software Developer in Bethlehem, PA, United States
Darley Stephen

Software Developer in Bethlehem, PA, United States

Member since May 2, 2016
Darley is a developer and architect with more than 18 years of experience in information technology including Java, PHP, C#, Oracle, Salesforce, and more. With his experience in varied technologies and industries, he can assure that his quality of work will be the best.
Darley is now available for hire



  • C++, 20 years
  • Java, 17 years
  • PHP, 13 years
  • Spring, 8 years
  • Oracle SOA Suite, 7 years
  • Salesforce API, 5 years
  • AngularJS, 5 years


Bethlehem, PA, United States



Preferred Environment

Ubuntu, Windows, Git, PhpStorm, Eclipse, Force.com

The most amazing...

...thing I've done was to work on simulations, HLA/RTI, and incorporating extremely complex mathematical and physical models to plot shuttle paths at NASA (KSC).


  • Software Architect and Developer

    2018 - PRESENT
    • Designed the architecture of the core components.
    • Developed core components.
    • Designed and developed the UI/UX.
    • Design and developed data streams using Kafka streams to expose MongoDB data as JSON objects.
    Technologies: Go, Java, Elasticserch, Jest, Kibana, Spring Boot,Kafka Queue / Streams, Logstash, Salesforce Apex, Lightning App, Jackson, Lombok, PHP, AngularJS, jQuery, Consul, Docker, Jenkins
  • Senior Developer and Architect

    2015 - PRESENT
    Virtuous Consulting Services
    • Built and deployed the most complex Elasticsearch script, and integrated it with the app using Spring Boot, Jest, ObjectMapper, and Spring Data.
    • Architected and designed the end-to-end automation of ES and the consumer app.
    • Incorporated complex heavily customized requirements into functional components; starting from a functional design/spec, turning architect requirements into a functionality, developing functional units using Java, PHP, and Apex, and extending the services into a complex UI using AngularJS, jQuery, CSS, SVG, Visualforce, Go, Go-Net, and Go-gorilla-mux.
    • Customized the CRM environment; using Apex, Visualforce, and PHP.
    • Integrated order and customer data between SF and ERP by exposing REST in PHP as well as SOAP in Java for various vendors who needs to consume them based on their own choice of protocol.
    • Used OAuth and OpenID Connect for Salesforce and other apps' communication.
    • Developed the site, Dialrun.com.
    • Customized the ERP environment: architected and developed Java (Spring and ADF) components for ERP.
    • Designed and developed Informatica MDM data flow into Salesforce using Kafka Queue, Trueloader, Java, and IBMMQ.
    Technologies: Salesforce (Apex and Visualforce), Java, PHP, Oracle EBS/SOA/ADF, SF IDM, AngularJS / Angular 5, Elastic Search, Spring, MongoDB, HBase,Oracle, MySQL, Tomcat 8.5.x
  • Senior Architect and Developer

    2017 - 2017
    HudsonAlpha Institute for Biotechnology
    • Architected and developed the portal for internal-and-external users to manage patient cases and record various specimens.
    • Integrated portal users and Salesforce users using Auth0 and the Webtask.io SDK.
    • Integrated and synced case-and-patient information between Salesforce and the portal.
    • Built Apex classes, triggers, and Visualforce pages to manage patients and cases.
    • Developed AngularJS and Node.js components to integrate Salesforce Health Cloud and a custom portal.
    • Architected and developed a D3.js UI/UX for the console, HPE One View, and Docker web and network services for discovery and accessibility.
    • Created D3.js and React components to present the most advanced UI/UX to manage the console and HPE One View.
    Technologies: Salesforce, Salesforce Health Cloud, AngularJS, Node.js, ReactJS, Auth0, Webtask, Docker, Consul, Grommet, D3.js
  • Senior Developer and Architect

    2014 - 2015
    • Supported the enterprise architecture and development of an SOA integration with the external systems (JDE, TPM, BOA) to Oracle EBS.
    • Created Java and SOA components for EDI PO/shipping and exposed them in a B2B VAN/FTP for distributors to consume them and parsed X12 documents based on specs/requirements, validated them and invoked a seeded (native) API for data population.
    • Worked in TCA, OM, INV (MTL), AP, AR, PO, WSH, WMS, and other modules as well in integrating SOA, ADF faces and J2EE functionalities.
    • Incorporated Oracle OAM suites, IDM, OIM, and SoD for user authentication and authorization.
    • Exposed Java and some PHP functions as SOAP services for CRM consumption.
    • Created SF triggers, Apex/Visualforce, and process builders for custom pages for exposing and syncing the order manager from ERP.
    • Developed custom reports in OBIEE.
    • Built and Managed an 11G Oracle Web Center portal, Web Center content, and sites.
    • Designed and developed a UI using ADF Faces, and integrated UCM.
    • Used JDeveloper for UI/UX and interactions.
    • Migrated core components from 11g to 12c.
    Technologies: Java, SOA Suite 11R2, 12C, EBS, OBIEE, OAM/IDM, Salesforce, JDeveloper, J2EE, JSF, Struts
  • Senior Consultant

    2013 - 2014
    Olympus America
    • Managed and fixed the workflow engine based on Java, Servlets, and Spring MVC.
    • Created workflow engine functionalities based on new requirements.
    • Developed the first Java and SOAP service to retrieve inventory, PO, and shipping details from Tokyo, then parsed the input data in XML format, validated them based on functional requirements, and then created IDocs for SAP PI consumption.
    • Wrote reports in PHP, MySQL, AngularJS, and jQuery; also used the PHP framework foundry for that.
    • Deployed and tested Hadoop, Cassandra, and MongoDB for moving transaction data into analytical data and generating reports based on requirements.
    Technologies: Java, JAX-WS, Tomcat 7, DROOLS, Servlets, JSP, BIRT, Enterprise Reports Engine, PHP, J2EE, Spring, Ubuntu, Windows Server, Foundry, CakePHP, jQuery, SOA, MySQL, SQL Server, Hadoop, Apache Casasandra, MangoDB, SugarCRM, SAP PI (IDOC, SFTP) Process
  • Senior Consultant

    2010 - 2013
    • Worked on multiple projects that involved architecting and developing core components.
    • Designed ER and schema for reports using dimensions, fact, physical, logical, alias, and extension tables.
    • Managed and executed a Scrum development process and procedures.
    • Built PHP, Java, SOA, and Objective-C functionalities.
    • Activated Salesforce functions based on customer requirements.
    • Developed REST and SOAP service for consumption as well as creating SOAP service consumer agents.
    • Built a strategy for identity management including SSO.
    • Designed and developed a health information system that complies to HIPAA and integrates ePHI and ICD 9/10.
    Technologies: Oracle EBS (Apps) 11g, OFM, Oracle Portal 10g/11g, Web Center, OID/OAM (IDM OIM 11g R1 (11.1.1.x & R2 11.1.2.x), OIF, OBIEE 11g, OBIEE 10g Migration, Oracle 10/11g R1 & R2, SOA Suite 11gR1, PHP, J2EE, Spring, C#, Objective-C, SOA Suite 11g, SugarCRM
  • IT Analyst (Independent Contractor)

    2008 - 2010
    Freelance Work
    • Integrated various system designs and created a component-based architecture for the entire enterprise application.
    • Developed and designed architecture-based analyses.
    • Implemented object and process analyses.
    • Worked on a database and storage analysis.
    • Devised an external system integration analysis.
    • Conducted a system-based analysis for all of the existing system in order to identify components within the application that need to be recreated and that could be converted to be deployed in a cloud.
    • Designed the app and objects so that they could be a part of a service and then later could be deployed in a cloud.
    • Managed a team with Scrum.
    • Created functional specs.
    • Developed C++ sockets for all socket-based communications.
    • Built Java programs for client-side manipulation.
    Technologies: Java, .NET, C#, Asterisk 1.6, C++, DAHDI, ZapTel, SIP, Spring, Objective-C, Android API, C#, VB.NET, SQL Server, Oracle, MySQL, PHP
  • Senior Manager

    2005 - 2007
    Satyam Computer Services (Wipro)
    • Managed total quality controls.
    • Defined the SOA architecture and delivery process.
    • Worked on WebSphere clustering, load management, parallel processing, batch processing, the Portlet API, and WebSphere global security.
    Technologies: J2EE, WebSphere, WAS, WPS, WIS, BPEL, JSF, Informatica-ETL, Java, C#, VB.NET, SQL Server
  • Developer

    2003 - 2004
    MYDBPanel (Contract Project)
    • Developed PHP programs to create a GUI for MySQL that's similar to phpMyAdmin.
    Technologies: PHP, MySQL
  • Senior Analyst

    2003 - 2004
    Nesh Systems
    • Researched and developed an EMR (electronic medical record).
    • Worked on DICOM parsing, eHealth, clinical, and hospital process management.
    Technologies: Ubuntu, Windows, VB.NET, Java Core, J2EE, C++, PHP, Apache, WebSphere, Oracle (for V1), SQL Server
  • Research Engineer

    2002 - 2003
    NASA | Kennedy Space Center
    • Designed the discrete event simulator in order to simulate the integration of the models. The language used for the mathematical analysis was Java, Visual C++, and the display was done either by OpenGL, Flash, HTML, applets, and similar.
    • Worked on the costing using COCOMO and SLIM.
    • Maintained the code management, resource management, and time management.
    • Developed the integrator to incorporate the models that are selected for simulation. The technology used for integration was VB.NET, VC++, Fortran, and C.
    • Designed the front end for both the integrator and simulator using Java, Flas, OpenGL, and ASP.NET.
    • Built the back end's architecture for both the integrator and simulator using LDAP, Java, and EJB.
    Technologies: OpenGL, C, C++, Java, EJB, JSP, Flash, RMI, MATLAB, Math Tools, C++ Sim, CALPUFF, Weather Model, Trajectory Model, Lightning Model, Shuttle Model
  • Software Analyst

    2001 - 2002
    Hewlett-Packard (California, USA)
    • Designed the VM parts for class loading, GUI, and networking.
    • Created Java programs and applications for MIDlet, io, timer, HTPP, and RMS applications in the MIDP spec for stress, coverage, performance, and regression testing.
    • Developed Java test programs using standard the Java API and used that for testing.
    • Built a MIDP UI Kit to run all the applications created and to test them.
    • Created the system architecture using UML diagrams (class, package, and sequence).
    Technologies: C, C++, Java, Rational Rose, WinCE Jornada-720, Palm OS, Linux, Unix, Win NT
  • Senior Manager

    2000 - 2001
    Contract Work
    • Designed the system using the OOAD concepts and the software design patterns methodology.
    • Developed the session and Entity Beans for the EJB.
    • Created JSP clients for generic analytics and package analytics.
    • Designed the reengineering for the system using UML and Rational Rose.
    Technologies: EJB, JSP, ASP, Perl, SNiFF+, JVISION, WebLogic, Apache. Oracle 8i, EJB, CORBA, JSP, IIS, C++, SQL Server, PHP
  • Developer | Analyst

    1997 - 2000
    Beezier Systems
    • Developed an application using JDBC, AWT, networking, the Telephone API, and the SCAI protocol.
    • Implemented the database under MS Access.
    • Developed an application using Java, Perl, Cold Fusion, HTML JavaScript, and DHTML.
    Technologies: K-Java, KVM, Palm OS, Windows NT, Java Networking, IO, Utils, AWT, Java, Perl, Cold Fusion, HTML, JavaScript, DHTML



  • Languages

    Java, PHP, C++, Go, Scala, Objective-C, Swift
  • Frameworks

    Spring 5, Spring, AngularJS, Angular Material, Oracle Application Framework (OAF), Angular, Android SDK, Oracle ADF, Hadoop, CakePHP
  • Libraries/APIs

    jQuery, Salesforce API, jQuery UI, Spring REST, jQuery SVG
  • Tools

    JDeveloper, Oracle SOA Suite, IntelliJ, PhpStorm, Eclipse IDE, Git, Apache Ant, Oracle E-Business Suite (EBS) R12, Oracle Financials, Apache Solr, Nginx, SugarCRM, SNiFF+, Rational Rose, Oracle Business Intelligence Enterprise Edition 11g (OBIEE), Bamboo, Jenkins, Maven
  • Paradigms

    REST, Scrum, HIPAA Compliance, BPMN, B2B
  • Platforms

    Java EE, AWS EC2, Apache2, Oracle, Ubuntu 16.04, Amazon, WebCenter
  • Storage

    Elasticsearch, MongoDB, MySQL, Microsoft SQL Server, SQL Triggers, AWS S3
  • Other

    Enterprise Java Beans (EJB) 3, Order Management, Supply Chain, Salesforce Programming, Oracle WebLogic Application Server, Functional Design, CALPUFF, WebSphere Application Server, Apache Cassandra, X12, EDIFACT


  • Bachelor's degree in Computer Engineering
    1994 - 1998
    Bharathidasan University - Tiruchirappalli, India

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