Varun Madabushi Varadarajan

Deployed and supported both internally developed applications and third-party software within production environments.

• Developed and implemented system changes and modifications based on business requirements and vendor APIs.
• Acted as primary liaison between IT teams and business stakeholders (Finance, Compliance, and other departments).
• Led application and workload migrations to Google Cloud Platform (GCP).
• Owned the full Software Development Lifecycle, applying DevOps methodologies and toolchains.
• Designed integrated processes, applications, data, and technology solutions aligned with Enterprise IT strategy.
• Built business solutions for stakeholders using the Jira platform.
• Ensured stable operations by managing application rollouts to production, simulation, and development environments, while providing ongoing support and modifications.
• Administered application hosts, including upgrades, patching, tuning, capacity planning, and performance management.
• Drove continuous improvement and automation of operational processes and delivery pipelines.
• Maintained 100% application uptime across environments through proactive monitoring, logging, and alerting with Opsgenie.
• Coordinated penetration testing for applications and servers, remediated vulnerabilities, and maintained up-to-date security documentation.
• Mitigated compliance risks by partnering with third-party SaaS vendors to align applications with Deutsche Börs regulatory requirements.

• Developed Board Support Packages (BSPs) for In-Vehicle Infotainment (IVI) head units in Volkswagen Group and Bentley cars using the Yocto Project with Linux kernel 4.19 LTS.
• Integrated key multimedia and UI components including GStreamer, Wayland, ALSA, MESA, and Qt5 into custom Yocto Linux images.
• Collaborated with Qt by providing Yocto SDKs to enable frontend compositor development.
• Automated build processes using Jenkins, leveraging shell scripting, Bitbucket, and Git plugins.
• Configured Bitbucket–Jenkins integration with webhooks to streamline pull requests, commit automation, and CI/CD workflows.
• Packaged Yocto BSP images with LXD containers and Snaps for seamless hardware integration.
• Utilized Jira for ticket tracking and Confluence for technical documentation.
• Designed and developed application prototype user interfaces using the Qt framework and Qt Creator.
• Maintained development and build environments entirely on Ubuntu Linux (18.04).

• Designed, wrote, and reviewed functional and performance test cases in C#, leveraging OPC UA methods for automation.
• Tested Data Analytics Server interactions with IoT Gateway, MTX, and MLC drives to validate system performance and reliability.
• Implemented code changes in shared C# libraries used across the Data Analytics Server and other project applications.
• Tested and executed OEE (Overall Equipment Effectiveness) solutions for Bosch machine tool equipment, deploying solutions on client machines.
• Utilized Git, TFS, and Stash for version control, source code management, and bug tracking.
• Analyzed business requirements and technical specifications to ensure accurate test coverage and development alignment.
• Automated build and testing workflows with Jenkins, improving efficiency and reliability.
• Integrated MongoDB for data storage in testing and analytics processes.
• Applied object-oriented programming principles and design patterns in C# development.
• Contributed within an Agile Kanban environment, ensuring iterative delivery and cross-team collaboration.

• Developed Linux image prototypes for In-Vehicle Infotainment (IVI) head units using the Yocto Project, including kernel, shell, and frontend development.
• Built Yocto prototypes with Bash and Python scripting to extend functionality and automate processes.
• Automated build workflows in Jenkins, primarily using shell scripting, to improve efficiency and reliability.
• Worked in a Ubuntu Linux (16.04) development environment with Git for version control and automation integration in Jenkins.
• Analyzed business requirements and technical specifications to align development with project needs.
• Applied object-oriented principles and design patterns in system and application development.
• Designed and developed user interface prototypes with the Qt framework and Qt Creator.

• Developed prototypes of medical applications to simplify and improve existing complex healthcare solutions for clients.
• Implemented prototypes in C++ with MITK-dependent libraries, using Visual Studio as the primary IDE.
• Applied object-oriented principles and design patterns to ensure scalability and maintainability.
• Designed and built user interface prototypes with the Qt framework (Visual Studio plugin).
• Utilized FIWARE Lab middleware platform for data storage and integration.
• Conducted manual testing during each sprint to validate functionality and quality in an iterative development cycle.

• 3 years of experience in Enterprise Application Integration (EAI) with domain expertise in Life Sciences and Healthcare.
• Contributed to end-to-end middleware business applications for Merck & Co, ensuring seamless data flow between SAP applications (including SAP HANA) using the TIBCO suite of products.
• Extensive experience in EAI, web-based applications, and client/server architectures.
• Expertise in TIBCO BusinessWorks, TIBCO Designer, EMS, TIBCO Administrator, ADB & File Adapters, TIBCO SmartMapper, SOAP, and XML.
• Strong hands-on experience with Unix commands and databases including Oracle SQL.
• Skilled in requirements analysis, test case design, execution, and reporting to ensure robust QA coverage.
• Collaborated effectively with clients, internal teams, and onsite counterparts, demonstrating strong communication and stakeholder management skills.
• Proficient in tools such as Axway, HP Quality Center, HP ALM, UFT, Jenkins, JIRA, and version control systems.
• Followed Agile Scrum methodologies for iterative development and timely project releases.
• Experienced in both manual testing and continuous integration testing, ensuring application quality and stability.
• Served as a Defect Prevention Analyst in CMMI Level 3 and Level 5 projects, tracking release defects, conducting 5 Whys root cause analysis, and driving CAPA (Corrective and Preventive Actions) to maintain project quality.