/* Modernizing legacy software, one clean commit at a time. */

I set up automated CI/CD pipelines for the legacy application using Azure DevOps, helping transform the process from manual to automated deployments and enabling more frequent, smaller releases. I suggested practical improvements to team dynamics, such as establishing shared sprint goals and limiting work-in-progress within my areas of influence.

I participated in planning sessions with stakeholders to better align priorities before development began when possible. I provided technical guidance to team members, demonstrating clean code practices and domain-driven design principles through practical examples in my contributions.

I focused on deeply understanding the business domain to ensure my technical solutions aligned with real user needs and business objectives. I balanced addressing technical debt with new feature development in my work areas, ensuring continuous delivery of business value despite the challenges of a large-scale rewrite. This project demonstrates my commitment to creating sustainable value through quality engineering practices, even when working within constraints of broader project decisions.

I iteratively reimplemented old stored procedure logic as C# code by incrementally moving the SQL to the C# project and then refactoring it to EF Core queries and C# logic, all while maintaining the working system. The partial rewrite was secured with extensive blackbox and integration tests to ensure reliability and business continuity.

Implemented a detailed investigation module for damaged or malfunctioning products, allowing engineers to document findings and track resolution progress. The mobile client significantly improved the quality of field reports by providing real-time data collection capabilities.

Designed an web UI for the main system that streamlined the review and approval workflows, making it easier for stakeholders to collaborate on product changes. Integrated document management capabilities to ensure all product specifications and change documentation were properly versioned and accessible.

Mentored junior developers on the project, providing guidance on best practices in software development, code reviews, and architectural decisions. Established coding standards and documentation practices that improved overall code quality and team productivity.

Carefully analyzed the existing codebase to identify components that could be reused and those that needed to be rebuilt, ensuring an efficient modernization process that preserved valuable legacy functionality while eliminating technical debt.

Completely reimplemented the outdated Sharepoint views with modern React components, improving the user experience and application responsiveness. The new architecture made the system more maintainable and easier to extend.

Established automated testing practices that ensured the modernized application maintained feature parity with the legacy system while enabling safer future enhancements. Worked closely with the client to prioritize features and deliver incremental value throughout the modernization process.

Created a integration layer to pull data from the legacy internal order management system that previously couldn't provide data to external users. Architected the solution to run entirely in Azure, leveraging cloud services for scalability, reliability, and global accessibility.

Implemented a secure data synchronization mechanism that protected sensitive information while providing customers with the details they needed. Advocated for and implemented DevOps practices, setting up continuous integration and delivery pipelines that enabled frequent, reliable deployments.

Collaborated with UX designers to create an intuitive interface that received positive feedback from international users. The weekly demo approach where customers directly tried the software in the test environment, instead of us presenting finished features, created high trust between the client and the team and resulted in recognition for this project management approach.

Developed a seamless data flow between the systems that enabled the modern webshop to access and display product information from the legacy PIM system without requiring major changes to either system. The serverless architecture provided cost-effective scaling to handle varying loads.

Collaborated closely with both the PIM team and frontend developers to ensure the integration met all requirements and provided a consistent user experience. Established monitoring and alerting for the serverless functions to ensure reliability and quick response to any issues in the production environment.

Applied clean code practices and test-driven development to ensure high-quality, maintainable code. Collaborated closely with stakeholders to understand business requirements and translate them into technical solutions that addressed real user needs in the logistics domain.

Participated in planning steps to modernize and simplify the existing system that had become too complex over time. The system had accumulated numerous features over the years without removing unused ones, leading to maintenance challenges and decreased development velocity. Our team analyzed usage patterns, identified obsolete features, and created a phased approach to streamline the system while maintaining critical functionality. This modernization initiative improved system performance, reduced maintenance costs, and enhanced the overall user experience.

Created a CMS system for game developers to modify, synchronize, and publish game-related data to test and production databases. This significantly streamlined the game development workflow and reduced time-to-market for new game features and updates.

Implemented an enterprise communication system based on JMS (Java Message Service) to ensure reliable message delivery between system components. Developed server monitoring and controlling systems to maintain high availability and performance.

Built data collection mechanisms and visualization tools to present historical performance data, enabling proactive system optimization. Designed and implemented various REST interfaces for client applications, optimizing data access with clustered Cassandra databases for high scalability.

Created user interfaces using Vaadin framework for internal tools and administration panels. Introduced strong unit and integration testing practices to the team, significantly improving code quality and reducing errors in the mission-critical back-end servers. Led project teams and mentored other developers in best practices for high-performance server development.

Designed the framework with flexibility in mind, allowing testers to easily configure different test scenarios without requiring deep technical knowledge of the underlying database structure. This democratized testing and enabled more thorough validation of system behavior under diverse conditions.

Developed utilities to clean up generated test data after test execution, ensuring the test environment remained in a consistent state between test runs. Created documentation and training materials to help the testing team effectively utilize the data generation tools.

Worked closely with quality assurance teams to understand their testing requirements and continuously improved the data generation utility based on their feedback. The solution significantly reduced the time required to set up test scenarios and improved test coverage across the application.

Enhanced an existing custom configuration management system before participating in creating a completely new system based on the existing platform. The new system significantly improved security compliance and operational efficiency for the telecom company's certificate management processes.

Developed robust integration with Microsoft Active Directory for secure user authentication and authorization, ensuring that only authorized personnel could access sensitive certificate operations. Implemented comprehensive logging and audit trails to maintain security compliance and traceability of all certificate-related actions.

Collaborated closely with security experts to ensure the system adhered to industry standards and best practices for public key infrastructure (PKI). Participated in code reviews and security audits to maintain the highest level of security throughout the development lifecycle.