Denys Nichoha

Designed and built an AI-assisted product end-to-end using Claude workflows to accelerate scaffolding, testing, and iteration. Automated delivery and operations with AI, improving gross margin from 60% to 97%.

Maintained and extended a legacy enterprise web application across the full stack, combining C#/.NET backend and ExtJS frontend. Investigated complex production defects and refactored aging modules to deliver incremental features with minimal regression risk.

Owned end-to-end delivery for 4 clients, managing 10+ stakeholders and 30+ engineers while running Agile/Scrum with bi-weekly demos and frequent releases. Drove startup discovery, estimation, and risk assessment, achieving at least 30% budget savings through phased onboarding.

Worked on full-cycle retail platform delivery (POS, financial, logistics), handling deployment/configuration and monitoring. Migrated WebAPIs from .NET Framework to .NET Core 3.1 and CI from TeamCity to GitHub Actions, introduced a company-wide logging standard, and improved unit-test code coverage.

Designed the architecture and shipped an MVP in 3 months: a server integrating multiple crypto exchanges via API for strategy analysis. Grew to 300 stable users and raised $250K+ across seed rounds, owning feature development, technical documentation, and team mentoring.

Led a team of 7, ran Scrum, and managed tech-debt planning and refactoring for taxi (Tamam) and BaaS (Taqneen) platforms. Migrated away from an external BaaS to AWS-based MS SQL with EF and designed/secured an OData data layer, including payment and SMS integrations.

Built a Windows 10 UWP app to compare carrier rates and print shipping labels, integrating a RESTful services layer. Improved architecture by splitting server logic into BL and DAL and implemented complex UI controls.

Developed a multi-module WPF audiometry application interacting with a USB audio card via device commands. Refactored to remove memory leaks and integrated StyleCop into the TFS CI build while migrating build tooling from TFS 2010 to TFS 2015 and hosting Scrum ceremonies.

Designed WPF application architecture and built multithreaded UIs using Prism and Caliburn.Micro, including resolution-independent custom controls. Delivered gaze-interaction desktop tooling using Microsoft UI Automation mappings and processed gaze data while refactoring with IoC/SOLID and driving releases through Git, TeamCity, and Jira.

Built maintainable Silverlight UI using Telerik controls and Prism with MVVM, embedded within a Java capital-markets web application. Covered new and legacy code with NUnit tests, created XSD schemas for XML from the Java backend, optimized view-model performance, and fixed memory leaks.

Built the data-access layer and MS SQL database architecture using LINQ to SQL/ADO.NET for new BI and CRM modules. Migrated a Silverlight BI solution toward SPA functionality (controllers, rich UI, KnockoutJS/jQuery AJAX view-models) and developed the Mentor CRM with WCF services, dynamic module loading, and IIS deployment.

Completed the ICAgile Certified Professional certification.

Bachelor of Science in Information & Communication Systems Security at National Aviation University.