Daniel Goh

Store Technology, Modernization - Drove the modernization of legacy systems into a modular, service-oriented architecture in collaboration with product and infrastructure teams, resulting in reduced downtime, improved observability, and more reliable feature delivery for customers. - Designed and maintained distributed systems with strict reliability, latency, and fault tolerance requirements, processing multi-million dollar transactions every day. - Integrated payment terminals (Verifone) and other internal systems (gift cards, loyalty) under strict compliance and uptime constraints. - Implemented event-driven architecture using Apache Kafka to ensure real-time data synchronization across store systems and backend services. - Provisioned cloud infrastructure using Terraform and AWS, emphasizing scalability and operational resilience.

Store Technology - Identified and addressed gaps in the existing system, bolstered security measures, and enhanced delivery efficiency. - Led the team in developing and implementing a feature enabling customers to shop using stored card information for point-of-sale transactions.

Accomplishments: • Proactively fixed the developers’ cluster servers as it was causing a web application to consistently fail after waking from an idle session. The server fix ensured smoother application testing sessions for developers. (C#, .NET, IIS Server) • Implemented batch data processing procedures to improve database performance and health. The implementation improved response time and removed database locks that were causing long query times. (T-SQL, SQL Server) • Developed data application programming interface components for a .NET console application that connects to the database. The implementation benefited the customers by allowing routine flat file generation without the need for explicit querying. (.NET, C#, T-SQL, SQL Server) Responsibilities: • Interact with customers to pin down requirements, create design documents and implement solutions • Create unit tests during and after development • Participate in code reviews • Coordinate testing efforts for software changes with customers/engineers on development and test servers • Handle customer ad-hoc data queries and feature modification requests on internal application • Undertake technical debts to optimize database performance • Analyze data gaps and perform data cleanup in database

Accomplishments: • Updated a web application with functionality and optimized SQL queries to streamline managers’ work. Implementations benefitted the managers by reducing the time taken to complete their task from 3 hours to 45 minutes. (Classic ASP, JavaScript, Oracle) • Analyzed and documented a financial web application with complex database behaviors to support a Lean Six Sigma Green Belt project. The outcome of the analysis enabled me to fix the root cause, which was causing incomplete internal reports to be generated. This fix benefited my manager and the finance department by saving man hours from manually tracking and creating spending reports. (Classic ASP, Oracle, Excel) Responsibilities: • Handle ticket requests on bugs or feature requests for existing application portfolio • Design, develop and maintain applications and databases • Analyze data and create reports for engineers • Interact with customers to collect requirements, create design documents, and implement solutions • Participate in code reviews • Conduct system testing with customers and engineers • Technology used: Classic ASP, JavaScript, C#, .NET 4.0, Excel, Oracle 10g, SQL Server, MySQL