Victor Ledezma

Principal Software Engineer

Paylocity

Jan 2020 - Current (6 years 5 months)

• Architected a suite of payroll microservices using ASP.NET Core 6, RabbitMQ (MassTransit), and SQL Server, establishing event-driven flows for tax calculation, time-off accruals, and payment generation. • Introduced CQRS and domain-focused service segmentation across reporting and payroll pipelines, using MediatR to orchestrate commands and projections with async processing queues. • Re-platformed internal HR dashboards using Blazor Server and Razor Pages, aligning user-facing workflows with backend APIs written in ASP.NET Web API Core. • Applied OpenID Connect with IdentityServer4 for authentication across internal admin apps, enabling multi-role access management within an Azure AD-integrated environment. • Organized complete integratio

Senior Software Developer (SDE III)

Expedia Group

Jan 2017 - Jan 2020 (3 years 1 month)

• Worked on backend flight pricing APIs within Expedia Partner Solutions using ASP.NET Core 2.2 with heavy task scheduling flows and custom caching layers (MemoryCache + Redis). • Designed plug-in architecture for tiered carrier data ingestion sources with resiliency patterns applied using retry policies via Polly and fallback defaults for international carrier regions. • Integrated third-party hotel and metadata providers using loosely-coupled clients with client-specific fault isolators and mapped results via AutoMapper and strategy pattern-based adapters. • Collaborated on segmenting the Search and Booking engines into granular service layers and positioned gRPC and REST-based endpoints using .NET Core Web API projects with tightly scope

Senior Software Engineer

UKG

Jan 2014 - Jan 2017 (3 years 1 month)

• Overhauled enterprise Time & Attendance functionality for high-volume manufacturing clients, evolving static UI forms into WPF-based interfaces backed by Entity Framework 6 and async LINQ-to SQL reductions. • Introduced dynamic rule builders using partial views and Razor helpers within MVC 5 applications for shift policies, time capture exceptions, and compliance notices. • Consolidated multiple reporting interfaces into a shared RDLC report server architecture, optimizing multi-tenant filters to prevent cross-client data bleed in SQL Server embedded report views. • Reallocated exception-prone payroll logic from monolithic controllers into a layered notifications subsystem using SignalR and Windows Service Bus for event propagation. • Aud

Software Engineer II

Vertafore

Jan 2009 - Jan 2014 (5 years 1 month)

• Delivered HR and payroll features for mid-size clients using .NET Framework 4.0 WebForms applications, with data handling modeled via a custom-built ORM and raw ADO.NET queries to SQL Server. • Designed tax computation workflows and attendance flag rules using procedural modules, later migrating logic into a reusable service layer with Façade and Repository patterns applied. • Replaced reporting module with modular dashboard widgets in ASP.NET MVC using Kendo UI and jQuery for shift timing deviations, alerts, and historical payroll mismatch overviews. • Built scheduler routines to run end-of-week rollover processes using Windows Services and transactional batch triggers via T-SQL job routines. • Configured IIS deployments across Windows S

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