Cvintilian Rosca

2023 - 2024

Senior Java Developer • Endava

🛡 The client, the second-largest payment-processing corporation worldwide, required a solution for enabling P2P transactions based on account proxies.

Accelerated the development life cycle of new security features by over 75% by creating a security-adapter library for handling all the auth flows.
Worked on improving the extensibility of the solution by over 2x through the implementation of a hybrid data-model.
Eliminated database bottlenecks by 1.5x through the separation of concerns. Worked on the migration process of the logging functionality to a separate database instance.

2022 - 2023

Hewlett Packard Enterprise • DevOps

🛡The client, a French multinational telecommunications corporation, required a solution for running telecom-based services.

Significantly reduced the deployment time by 10x by automating the installation and configuration of multiple tools in different environments.
Increased the resilience of the observability tools by 100% through the implementation of a highly available setup.
Drastically reduced the need of manual intervention by over 2x through the enablement of Git-Ops operations.
Improved the re-usability of the provided solutions by over 100% by developing generic and reusable roles.

2021 - 2023

Java Software Developer • Endava

🛡 The client, an American-based multinational corporation, best known for its networking products, was dealing with infrastructure changes that resulted in the need of migrating multiple services to another cloud.

Reduced the service memory usage by about 40% after performing a profiling analysis and fixing the identified memory leaks.
Decreased the required time for running the continuous integration stage from 57min to 23min. Designed and implemented a solution for executing multiple sets of tests in parallel.
Improved the service maintainability by 100% after using a DB- agnostic solution for decoupling the data layer from the database.

2019 - 2021

Java Software Developer • Dextrue Labs

🛡 The client, an American chain of international co-ed fitness centers, required a desktop application for measuring and viewing real-time data related to sports exercises.

Significantly improved the accessibility of the application by over 2x by changing the used tech stack and implementing a portable solution.
Improved the user experience by over 50% by simplifying the layout of the product.
Increased the revenue by 3x through the implementation of an offline license management mechanism.

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