David Tscherny | Senior Software Developer

Hi, I'm David Tscherny.

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Self-driven, quick starter, passionate programmer with a curious mind who enjoys solving a complex and challenging real-world problems.

About

I am an experienced full-stack developer with over 14 years of software development experience, building and maintaining web & mobile applications ranging from enterprise applications to eCommerce sites. I specialize in front-end web, mobile, and desktop applications while also having experience with server-side code, APIs, and databases. I enjoy working with development teams and consider clear communication as the key to success.

Languages: C#, PHP, JavaScript, TypeScript, C++, Dart
Frontend Frameworks: React.js, Angular.js/Angular, Vue.js, BootStrap, Tailwind CSS, Svelte
Backend Frameworks: C#/.NET/NET Core, PHP/Laravel/Symfony, Node.js/Nest.js/Express.js
CMS: WordPress, Shopify, Drupal, Magento, Bubble.io
Mobile: React Native, Flutter, FlutterFlow
Databases: MS SQL, PostgreSQL, MongoDB
Tools & Technologies: Git, Docker, AWS, Azure, GCP, Heroku, JIRA

Looking for an opportunity to work in a challenging position combining my skills in Software Engineering, which provides professional development, interesting experiences and personal growth.

Experience

Bixly

Senior Software Engineer

Defined highly scalable, modern microservice-based architecture. Implemented a standards-compliant security subsystem.
Developed SOAP web services as an integration layer for multiple systems.
Developed a process-oriented WinForms application using DevExpress UI controls.
Developed a mobile application using Cordova, React Native and DevExtreme frameworks.
Configured the Git repository, defined software development processes, and workflows, Configured CI/CD pipeline.
Technologies: .NET, .NET Core, Flask, MongoDB, DevExpress UI, WinForms, React, React Native, DevExtreme, Cordova

January 2017 - July 2021 | Fresno, CA, United States

Quest

Backend Developer

Mainly contributed to the backend development using C#/.NET/.NET Core and PHP/Laravel
Developed various market analysis tools used daily by trading analysts.
Integrated market analysis tools with Microsoft Excel using VBA and Excel add-ons.
Designed a SQL server database to share data generated by market analysis tools using Microsoft SQL with a data layer implemented by SQL stored procedures.
Technologies: C#/.NET/.NET Core, PHP/Laravel, WordPress, Shopify, Java/Spring

September 2014 - January 2017 | San Francisco, CA, United States

Tepia Co

Software Developer

PHandled REST API development using .NET, .NET Core.
Delivered new features on time for a SharePoint-based project management solution and a SharePoint-based document management solution. Both solutions use .NET C# and JavaScript.
Developed a company support portal using .NET MVC.
Developed a company partners' portal using Angular.
Covered the Angular-driven TypeScript web application with end-to-end tests using Protractor.
Wrote unit tests for .NET and Angular.
Technologies: JavaScript, TypeScript, Angular, .NET, .NET MVC, NopCommerce, xUnit, Jasmine

April 2008 - April 2014 | Costa Mesa, CA, United States

Projects

                
Aon Global Risk Platform
                  A professional services site focused on risk, retirement, and health solutions for businesses worldwide based on .NET
                
AccomplishmentsTechnologies: .NET C#, WWF, and SQL Server 2016, Azure
British multinational corporation that provides risk management, insurance, and reinsurance brokerage.
I gained experience in NHibernate architecture, technologies like Fluent and Spring, and patterns such as singleton and MVP.

Staymenity Booking Platform
                  A short-term rental platform offering fully furnished, amenity-rich living spaces based on Vue.js and Laravel.
                
AccomplishmentsTechnologies: vue.js, Nuxt.js, PWA, Laravel, Cloudflare
Improved local/dev workflows, fixed production issues, migrated to AWS RDS, set up CI/CD, enhanced Autohost API integration, and upgraded from Laravel 8/Nuxt 2 to Laravel 10 with Livewire UI.

Data Scraper – Chrome Extension
                  Extracts tables and lists from web pages into CSV/Excel. Great for research, leads, and SEO. - React.js, Python
                
AccomplishmentsBuilt UI with React and TypeScript based on manifest v3
Added dynamic table preview and export features
Integrated content scripts for live data capture
Optimized the UX for quick, accurate scraping.

Recruitment Platform
                  Modern recruitment site built with Next.js, Storyblok, and GSAP for smooth UX and dynamic job content.
                
AccomplishmentsWorked on frontend using React, Next.js, and Storyblok for dynamic SSG pages.
Added dynamic table preview and export features
Integrated GraphQL for content delivery, used GSAP for animations, and ensured PWA support for offline usability and mobile optimization.

Fresco Smart Cooking Platform
                  React.js - based platform with guided recipes and connected appliance integration for an interactive experience.
                
AccomplishmentsContributed to frontend development using React, Next.js, and TailwindCSS.
Built dynamic, responsive recipe and appliance pages, optimized UI components for performance, and collaborated closely with the design team to maintain brand consistency.

Healthcare - Dental Website
                  Symfony-based Dental practice site providing patient resources, treatment information, and appointment scheduling.
                
AccomplishmentsTechnologies: Symfony, PHP, jQuery, AWS
Handled sustaining and enhancements for dental websites, improved Docker setup, fixed legacy issues, streamlined Symfony backend, ensured UI consistency, and integrated with AWS Route 53 API.

Family Organizer Mobile App
                  Family calendar and task manager app for organizing events, chores, and schedules across devices based on Flutter.
                
AccomplishmentsFlutter, Firebase, Swift
Features: Shared calendars, private family feed, collaborative lists, cherish family memories, create & events, ad-free, etc.

No Kid Hungry Site
                  Drupal - based digital hub offering tools and guidance for improving child nutrition programs.
                
AccomplishmentsAs a Drupal 10 developer, I built key components of the site
Ensured full WCAG/ADA accessibility compliance and optimized frontend templates
Worked closely with content teams to deliver a responsive, user-friendly, and inclusive experience.

Pet products - eCommerce
                  Magento - based e-Commerce site for pet food, accessories, and care, with search and checkout.
                
AccomplishmentsDeveloped and maintained a Magento 2 store with custom modules, Elasticsearch search, and responsive theming using Knockout.js and LESS.
Integrated payment/shipping APIs, Docker, and CI/CD for smooth deployment.

Wealth Planning Site
                  WordPress - based website that offers tailored financial advice and services through a professional, rich contents.
                
AccomplishmentsBuilt and maintained a custom WordPress theme using ACF, PHP, and SCSS.
Optimized performance, SEO, and responsiveness
Integrated forms and ensured WCAG accessibility compliance.

Smart Upsell Shopify Application
                  Public, embedded Shopify app that boosts sales with upsell & cross-sell offers. Built on Remix.js & Laravel
                
AccomplishmentsI was part of a small dev team, building the app with Remix.js (frontend) and Laravel (backend).
I developed dynamic offer logic, integrated Shopify APIs, and ensured smooth embedded experience across stores.

Checkout Validator
                  React.js, Node.js - based Shopify app that adds custom validation rules to the checkout flow.
                
AccomplishmentsI worked in a small team using React (frontend) and Node.js (backend).
I built UI components for rule management, implemented custom validation logic, and integrated Shopify's checkout extensions for a seamless user experience.

OFTV TV Application
                  LG TV Application for OFTV
                
AccomplishmentsAdded and improved some features to the existing LG TV application for OFTV
Integrated analytics for video at the singular creator page and other pages

Robotone audio effect plugin
                  MIDI-controlled polyphonic vocal harmonizer based on JUCE, C++
                
AccomplishmentsI designed and built Robotone, an Arduino-based MIDI synth with low-latency audio via direct AVR register control.
I wrote efficient C++ firmware, managed polyphony, and ensured MIDI hardware compatibility with expressive demo patches.