Divija Kollu
Cincinnati,USA
Summary
Build Engineer and DevOps professional experienced in Release Management, Configuration Management, and cloud-native architecture design. Delivered scalable and secure distributed systems on AWS through Infrastructure as Code practices, automated CI/CD pipelines, and advanced networking solutions. Focused on enhancing deployment reliability, optimizing performance monitoring, and facilitating effective collaboration across engineering and operations teams.
Overview
14
14
years of professional experience
Work History
Sr. Build and Release Engineer/Dev Ops Engineer
Fifth Third Bank
Cincinnati, OH
01.2017 - 07.2022
- Designed and managed Build and Release lifecycle processes using Agile methodologies, ensuring efficient CI/CD pipeline execution across development and production environments.
- Designed and implemented cloud infrastructure on AWS, provisioning resources using EC2, ECS, VPC, IAM, and Application Load Balancers to support scalable application deployments.
- Implemented Infrastructure as Code (IaC) using Terraform, AWS CloudFormation, and AWS CDK to automate infrastructure provisioning and maintain environment consistency.
- Designed secure AWS networking architectures including VPCs, public and private subnets, route tables, NAT gateways, and security groups to support application deployments across multiple environments.
- Implemented cross-account networking using AWS Transit Gateway and VPC endpoints, enabling secure communication between distributed services and internal APIs.
- Designed and implemented REST APIs using APIGEE and AWS API Gateway, enabling secure and scalable communication between microservices and external systems.
- Built and managed containerized application deployments using Docker and AWS ECS, integrating services with Application Load Balancers and automated CI/CD pipelines.
- Designed microservices-based architecture integrations using REST APIs and SOA patterns, enabling communication between distributed enterprise applications.
- Installed, configured, and maintained Jenkins, GitHub Actions, and Azure DevOps pipelines for continuous integration and automated deployments.
- Developed CI/CD pipelines integrating source control, artifact repositories, testing, and deployment automation, improving release reliability and reducing manual deployment tasks.
- Coordinated build and deployment activities across development, SIT, QA, and UAT environments to ensure continuous operations.
- Led offshore DevOps support teams of 7–10 engineers, providing ongoing support for deployment pipelines and infrastructure operations.
- Implemented ClearCase to Git migration, preserving full commit history, branches, and tags to modernize version control workflows.
- Installed and configured Jenkins CI server, implementing automated build and deployment pipelines with push-button release capabilities.
- Integrated SonarQube with CI pipelines to perform automated code quality and security analysis.
- Built automated deployment workflows for Java and .NET applications, improving release efficiency and reducing deployment errors.
- Configured middleware deployment infrastructure using APIGEE and TIBCO, enabling secure service communication between enterprise systems.
- Created automation scripts using Shell/Bash to streamline build pipelines, environment provisioning, and deployment processes.
- Implemented monitoring and observability solutions using AWS CloudWatch, Grafana, Nagios, and AppDynamics, enabling proactive system monitoring and performance analysis.
- Managed artifact repositories using Sonatype Nexus, ensuring proper version control and artifact management for application releases.
- Worked closely with Technology Change Control Board (TCCB) to ensure compliance with change management and release governance processes.
- Developed Proof of Concepts (POCs) for new DevOps tools and automation frameworks to reduce manual processes and improve system reliability.
- Collaborated with development, QA, infrastructure, and project teams to ensure smooth build, integration, and release processes across multiple environments.
- Fifth Third’s Customer Relationship Management (CRM) platform also serves as an enterprise customer information repository primary for the wholesale lines of business and specifically individual customers serviced by the Private Bank. In addition, CRM is the source of customer to account relationships for CCAS, the Commercial Credit Authorization System. CCAS is the platform for which the Credit organization performs risk rating and credit underwriting activities. Fifth Third Bank has various applications for Small Business Lending (SBL). The SBL/CCAS project aims to integrate this various application using SOA architecture in a .Net based platform.
- Environment: AWS (EC2, ECS, VPC, IAM, API Gateway, CloudWatch), Terraform, AWS CDK, CloudFormation, APIGEE, TIBCO, Jenkins, GitHub Actions, Azure DevOps, ClearCase, ClearQuest, Git, Ant, Maven, SonarQube, Tomcat, WebSphere, Nexus, Shell/Bash, UNIX, Linux (Ubuntu), Oracle, Java, .NET, Android.
Sr. Build and Release Engineer/Dev Ops Engineer
Great American Insurance
Cincinnati, OH
05.2015 - 12.2016
- Installed, Upgraded and Configured TFS 2015 for Dev, Prod and Pre-prod Environments
- Installed, Upgraded and Configured Jenkins, SonarQube, nexus, Nugget, Team city, GIT and Nunit for Dev, Prod and Pre-prod Environments
- Created custom build scripts to automate build environment processes
- Created custom build activities like RetrievePwdFromXML, FTP, Encrypt Decrypt password, creating Staging location with all shared copy books
- Created a TFS Source Control Context Menu item for automatic branching and merging and another TFS Source Control Context Menu item for automatic security update on branches
- Configured TFS 2015 Environment for Research Test Training
- Introduced the Agile SCRUM process for the Risk Data team and utilized Microsoft Team Foundation Server (TFS) to manage the team's software development lifecycle including deriving product backlog items, assigning sprint work items to developers and conducting sprint planning meetings.
- Worked on Apigee APIM delivering solid APIs
- Implemented test-driven development and SQL object version control, enabling consistent nightly builds of SQL Server databases and ensuring thorough testing and change management for production deployments
- Completing software builds and elevations, creating directories and security groups, and recreating prior versions. Monitored software, hardware, and/or middleware updates and utilizing technologies like Jenkins/Hudson, Ant, MS Build, Maven and Subversion
- Diagnosed and resolved configuration management issues related to defect tracking and version management, facilitating migration between version control tools
- Researched and implemented code coverage and unit test plug-ins with Maven/Jenkins
- Configured and maintained Jenkins to implement the CI process and integrated the tool with Ant and Maven to schedule the builds
- American Financial Group's major insurance division operates as the Great American Insurance Company focusing on property and casualty insurance services. Other affiliates and subsidiaries include Great American Custom, Mid-Continent Group, National Interstate, and Republic Indemnity. Additional insurance specialties include equine, trucking, executive liability, fidelity and crime, and agribusiness. American Financial Group supplies a range of annuities, life insurance products and supplemental insurances to individuals and enterprises.
- Environment: TFS, Sonarqube, MS Build, Android Ant, Maven, Jenkins, Tomcat, WebSphere, shell/bash UNIX, Sonatype Nexus, Linux Ubuntu, Oracle, .NET, Java, TIBCO5/6, Team city, GIT.
Sr. Build and Release Engineer/Dev Ops Engineer
KPMG LLP
Sacramento, CA
08.2012 - 04.2015
- Developed Jenkins pipeline from inception to production, streamlining CI/CD process
- Wrote ANT Scripts to automate the build process
- Developed Maven scripts for Java application configuration
- Used Maven to build rpms from source code checked out from Subversion repository, with Jenkins being the Continuous Integration Server, and Nexus as repository manager
- Deployed Puppet, Puppet Dashboard, and PuppetDB for configuration management to existing infrastructure
- Redesigned and redeployed the Nagios implementation. Nodes automatically added/removed themselves via Puppet
- Deployed Puppet for automated management of machine configurations
- Merged conflicting code to ensure release to test environments
- Create and maintain build scripts using Final Builder to perform builds efficiently
- Experienced with JIRA for defect tracking
- Assisted with Weblogic/Websphere implementation and resolved Java container issues related to the J2EE container.
- Experience with messaging systems like IBM MQ, Oracle Service Bus and Weblogic based messaging technologies
- Implemented Puppet modules to automate configuration of a broad range of services
- Worked with Build team to get the full UCD Jenkins integration
- Wrote puppet manifests for deploying, configuring, and managing collected for metric collection and monitoring
- Build automatic provisioning system with kick start and Puppet
- Planning, scheduling and documenting releases at code freeze periods
- Developed UNIX Scripts for the purpose of manual deployment of the code to the different environments and e-mailed the team once the build is completed
- Shell scripting for building and deploying java application to target environments
- Collaborated with cross-functional teams to facilitate smooth production deployments
- Coordinated release planning and communication among stakeholders to ensure timely build, testing, and implementation
- Contributed to lessons learned discussions following every release
- Partnered with KPMG to enhance case management modules for health care information in Hawaii.
- Environment: Ant, Maven, Jenkins, Tomcat, WebSphere, Subversion, shell/bash, Python, UNIX, Sonatype Nexus, Linux Ubuntu, Oracle, Dot net.
Sr. Build and Release Engineer/Dev Ops Engineer
New York State Office of Mental Health
Albany, NY
11.2010 - 08.2012
- Contributed to product release cycles across Development, QA, UAT, and Production environments, ensuring seamless transitions and minimizing downtime.
- Acquired in-depth knowledge of WebLogic operations in a production environment, enhancing system reliability and performance over three years.
- Configured WebLogic production environments based on internal customer needs
- Built and deployed Dot net application in JBoss using Shell scripts
- Developed build and deployment scripts using Maven and ANT as build tools in Jenkins/Hudson to move from one environment to other environments
- Conducted hands on training at remote R&D sites in Sweden, China, Canada, Germany, and the US where colleagues learned how to use Puppet and contribute to projects on GitHub.com
- Managed source code using GIT and Subversion to ensure proper versioning and collaboration.
- Introduced Configuration Management with Puppet and automated system builds with Cobbler which provided the first truly reproducible systems within Speakeasy
- Defined processes to build and deliver software baselines for internal and external customers.
- Design, develop and implement an automated Linux (Centos, Amazon) infrastructure using Puppet, MCollective and AWS and move existing applications off windows seamlessly to it while aggressively growing
- Experience in design and implementation of complex infrastructures using Amazon Web Services (AWS), Openstack, Google Cloud Platform (GCP) and VMware vSphere
- Integrated Maven with Subversion to manage and deploy project related tags
- Worked closely with Web Administrators to understand, participate, and experience the technical architect for web sites such as Apache, WebSphere, WebLogic; and deploying J2EE Applications to these environments
- Provided the assistance for the smooth phase of Release for the Emergency and Expedite Releases by getting the Director Level Approval and coordinating with different teams
- Wrote Shell scripts to apply the Integration label to all the files which needed manual labeling
- Gathered all the stakeholder approvals and necessary signoffs while acting as a release manager for two development teams
- Designed analytical matrix reports and dashboards for release services using Rally tickets, facilitating informed decision-making and improving visibility into release processes.
- Created a complete release process doc, which explained all the steps involved in the release process
- PCS site is one of the tools that the NYS Office of Mental Health uses to evaluate all of the programs licensed or funded by the NYS Office of Mental Health. The the Patient Characteristic Survey (PCS), which is a one-week survey conducted every two years. Results from the Patient Characteristics Survey are summarized into reports at the state, region, county and facility levels. The reports posted on this site allow users to sort data by geographic region of provider and other demographic variables. The PCS is the only OMH data source that describes all of the mental health programs in New York State. The information that is compiled is available on the OMH public website, and is used for planning and program evaluation by OMH and local governmental units; the results are also used to describe the state public mental health system to state and federal funding agencies and legislative bodies.
- Environment: Dot net, Maven, Subversion, Git, GitHub, UNIX, Rally, Shell, Artifactory, Jenkins/Hudson, Python, JBoss, WebSphere, Confluence, Linux, MYSQL.
Sr. Build and Release Engineer/Dev Ops Engineer
Praxair Corp
Danbury, CT
07.2008 - 11.2010
- Created and deployed builds to different environments based on requests
- Scheduled automated nightly builds using Jenkins
- Assisted developers and project teams in configuring views and environments for streamlined workflows
- Established and managed baselines and labels for build artifacts to ensure version control and consistency
- Created UCM Projects, Development and Integration views for Development and Integration Streams
- Deployed a small set of ClearCase Triggers to enforce fundamental custom policies and also to guide, monitor and control development activities
- Created Pre-operation and Post-operation triggers in UCM
- Developed scripts using BASH and BATCH files for Automation of Activities and builds
- Worked closely with Web Administrators to setup an automated deployment for SharePoint applications using SVN and Git Tools
- Delivered level one support for build troubleshooting and resolved production issues to minimize downtime
- Executed Emergency Bug Fixes (EBFs) by deploying them to various environments and tracking their status.
- Performed merges for each build from Development Branch to Integration Branch
- 24/7 on-call support for emergency site maintenance and immediate build and install requests
- Worked with the automated scripts for the Build and Deployment of the applications
- Monitored and administered the automated build and continuous integration process to ensure correct build execution, and facilitate resolution of build failures
- Maintained configuration files for each application for the purpose of build and install on different environments
- Created the build instructions docs and install (deploy) instructions docs for each application for different environments
- Performed merges between different branches, and resolved all merge conflicts successfully by working with development teams
- Implemented, maintained, and troubleshot software build environments
- Verified and documented software build content
- Defined, implemented, and documented software deployment strategies and installation procedures
- Participated in projects for the HR Department and Manufacturing Department across Canada and the US.
- Environment: Solaris, UNIX, Java/J2EE, Eclipse 3.20, Make, Maven, Python, Subversion, GIT, WebSphere Application Server (WAS), Jenkins/Hudson, ClearCase 7.0, Jenkins, Crucible, Remedy, BASH.
Education
Bachelor of Technology - Electrical and Control Engineering
Jawaharlal Nehru Technological University (JNT University)
Hyderabad, Andhra PradeshMasters of computer sciences -
Fitchburg State university
Fitchburg, MA, USASkills
- AWS (ECS, EC2, API Gateway, VPC, IAM, ALB, S3, Lambda, VPC Endpoints, PrivateLink)
- C#
- Java
- J2EE
- JavaScript
- JSP servlets
- XML
- HTML
- Shell
- Java Servlets 23
- JavaServer Pages 12
- Java Database Connectivity
- Java Message Service
- CVS
- SVN
- GIT
- ClearCase
- Mercurial
- Perforce
- ANT
- Maven
- Make
- Jenkins/Hudson
- Bamboo
- AnthilPro
- CruiseControl
- Jira
- Rally
- Remedy
- Bugzilla
- ClearQuest
- UNIX
- Linux
- DOS
- Android
- Mac
- Oracle Database
- SQL Server
- IBM DB2
- Apache
- Tomcat
- IBM JBoss
- WebLogic
- WebSphere
- Microsoft Office Suite
- Confluence
Timeline
Sr. Build and Release Engineer/Dev Ops Engineer
Fifth Third Bank
01.2017 - 07.2022
Sr. Build and Release Engineer/Dev Ops Engineer
Great American Insurance
05.2015 - 12.2016
Sr. Build and Release Engineer/Dev Ops Engineer
KPMG LLP
08.2012 - 04.2015
Sr. Build and Release Engineer/Dev Ops Engineer
New York State Office of Mental Health
11.2010 - 08.2012
Sr. Build and Release Engineer/Dev Ops Engineer
Praxair Corp
07.2008 - 11.2010
Bachelor of Technology - Electrical and Control Engineering
Jawaharlal Nehru Technological University (JNT University)
Masters of computer sciences -
Fitchburg State university