**Santhosh Katari**
443-620-3383
santhoshkatari248@gmail.com
linkedin.com/in/santhosh-katari/

### **PROFESSIONAL SUMMARY**
- 10+ years of IT experience in Object-Oriented Programming, designing, and developing multi-tier distributed enterprise applications using Core Java/J2EE technologies with SDLC.
- Experienced in leading project teams through SDLC stages: requirement gathering, analysis, designing optimal architecture, development, implementation, integration, documentation, testing, and deployment.
- Expertise in Waterfall, Agile, and Scrum methodologies. Actively involved in Test-Driven Development (TDD), sprint meetings, and daily scrums.
- Experience in developing, deploying, and troubleshooting web-based and enterprise applications on Windows, UNIX, and Linux platforms.
- Strong understanding of AngularJS, ReactJS, Bootstrap, HTML4/5, CSS (2/3), XHTML, JavaScript (ECMAScript 1.5, ES6+), TypeScript, Angular 2.0, AJAX, XML/XSL/XSLT, and JSON.
- Proficient in frameworks like Struts, Spring MVC, Spring REST, Spring JDBC, JPA Hibernate, and build tools like Gradle, ANT, Maven, and logging frameworks (log4J 1.x/2.x).
- Expert in Core Java concepts: Multithreading, Concurrency, Exception Handling, File Handling, I/O, Generics, and Collections.
- Strong understanding of SCM (Git) and experience with DevOps/CI tools like GitHub, Bitbucket, Jenkins, Nexus, Jira, and Docker.
- Experience in Microservices architecture and cloud computing (AWS: EC2, S3, Lambda, VPC).
- Skilled in RDBMS (SQL Server, Oracle, PL/SQL) and NoSQL databases (MongoDB).
- Experience in building REST APIs using Spring Framework and ORM tools like Hibernate/JPA.
- Proficient in SQL, stored procedures, triggers, DDL/DML, and transaction queries using TOAD, SSMS.
- Experience with web/app servers (IBM WebSphere, TomEE Plus, Jetty, JBoss) and middleware (JMS, ActiveMQ).
- Developed unit testing frameworks using JUnit, JMeter, Mockito, and PowerMock.
- Automated behavioral acceptance tests using Ruby and Cucumber.

### **TECHNICAL SKILLS**
**Languages:** Core Java, J2EE, SQL, PL/SQL, Servlets, JSTL, JSF, JMS, EJB, JSP, JDBC, Log4J
**Markup/XML:** XML, XSD, JSON
**Frameworks:** Spring, Spring MVC, Spring IOC, Struts, Hibernate, JSF
**Web Services:** SOAP, RESTful
**Web Technologies:** HTML5, XML, XAML, XSL/XSLT, CSS3, JSON, Angular 2.0, AngularJS, ReactJS, JavaScript (ES6+), AJAX, jQuery
**Web/App Servers:** WebSphere, WebLogic, Apache Tomcat
**Databases:** MongoDB, Oracle, SQL Server, MySQL, Spark SQL
**Development Tools:** Eclipse, IntelliJ
**O-R Mapping:** Hibernate, JPA
**Version Control:** GitHub, Git, Bitbucket, Tortoise SVN
**Testing Tools:** JUnit, Mockito, PowerMock, Cucumber, JMeter, Postman
**OS & Environment:** Windows, Linux, OSX
**Design Patterns:** MVC, Microservices, Singleton, Business Delegate, DAO
**Build Automation:** ANT, Maven, Gradle
**DevOps/Cloud:** Jenkins, Docker, AWS, Nexus, Jira, Databricks, Spark

### **EDUCATION**
- **Master's in Information Systems** – George Mason University, Fairfax, VA (Dec 2015)
- **Bachelor's in Electronics & Communication Engineering** – VIT University, India (May 2013)

### **PROFESSIONAL EXPERIENCE**

#### **Nexxen Inc (formerly Amobee)** | Baltimore, MD | **Mar 2021 – Present**
**Role:** Sr. Software Developer & Application Support
**Description:** SaaS-based web application for digital advertising management (Campaign 360, Inventory, Ad-Operations, Reporting, Administration).

**Responsibilities:**
- Led SDLC phases: requirements gathering, modeling, analysis, and discussions with product owners.
- Developed RESTful web services using Spring REST and leveraged Spring IOC, Spring-Hibernate, and Spring-MVC.
- Built efficient solutions using Spark, Databricks, and AWS for critical business requirements.
- Developed UI features using React.js, HTML5, CSS3, JavaScript, jQuery, AJAX, and JSON.
- Utilized AWS (EC2, S3, Lambda, VPC) for cloud deployment and monitoring.
- Implemented CI/CD pipelines using Jenkins, Docker, and GitHub.
- Worked with message brokers (JMS, ActiveMQ) for asynchronous messaging.
- Developed unit tests using JUnit, Mockito, and behavioral tests using Ruby/Cucumber.
- Managed NoSQL databases (MongoDB) and RESTful web services for high-volume data.

**Environment:** Java, Agile, Spring REST, Spring MVC, Spring JDBC, Spring IOC, JSON, Log4J, ActiveMQ, SQL Server, JUnit, Gradle, AWS, Docker, Databricks, Spark, Microservices.

#### **Lotame Solutions Inc** | Columbia, MD | **Jun 2016 – Mar 2021**
**Role:** Sr. Software Engineer
**Description:** Data enrichment solutions provider for global enterprises.

**Responsibilities:**
- Developed SOAP/RESTful web services using Apache CXF and JAX-WS.
- Implemented Spring annotations for business logic simplification and Spring MVC RESTful services.
- Built UI features using AngularJS and integrated with Spring Framework.
- Managed AWS EC2 instances, AMIs, and monitoring using CloudWatch.
- Developed REST services for Provider, Member, and Eligibility modules.
- Wrote complex SQL queries, stored procedures, and PL/SQL scripts.

**Environment:** Java, J2EE, Agile, Spring REST, Spring MVC, Spring JDBC, Spring IOC, Jackson JSON/XML, SQL Server, JUnit, Maven, AWS, Microservices.

#### **Accenture (Client: Equifax)** | Bengaluru, India | **May 2013 – Aug 2014**
**Role:** Java/J2EE Developer
**Project:** Registration Management System

**Responsibilities:**
- Developed applications using Core Java, Collections, Exception Handling, I/O, Struts, Spring, and RESTful web services.
- Created DDL/DML scripts for Oracle DB and implemented business logic using Java OOPs, multithreading, and concurrency.
- Used Hibernate for database connectivity and Maven for automated builds.

**Environment:** Java/J2EE, Agile, Eclipse, Spring, Spring MVC, JSP, Servlets, Hibernate, JUnit, Maven, Oracle, Jira, Microservices, JSON, Log4j.

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