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SYSTEMS: NOMINAL
v2.0.8
HALERKA
DIGITAL

.NET backend development, Windows applications, and cloud & DevOps for your business

CertVal cryptographic workbench CVForge template gallery Dali Bude Dub release catalogue Enhanced Clipboard history LegalX communication workflow ShoMark AI review screen
ShoMark AI review screen LegalX communication workflow Enhanced Clipboard history Dali Bude Dub release catalogue CVForge template gallery CertVal cryptographic workbench

About Us


Halerka Digital is a senior engineering team that takes complex software from architecture to production. We build resilient cloud platforms, custom business systems, and native apps—with clear communication and quality engineered into every release.

HALERKA_CONSOLE v2.0.8

Valentine

CEO

Technical Profile

Hands-on .NET engineer who turns complex requirements into dependable desktop, web, and cloud products. Specializes in agentic development, secure integrations, and guiding delivery from architecture to release.

Education

National Technical University 'Kharkiv Polytechnic Institute' - B.Sc. in Computer Science

Core Stack

Agentic DevelopmentClaude Code / Codex / GitHub Copilot.NET / ASP.NET Web APIWinUI3 / UWP / WPFReact / Angular / TypeScriptAWS / DockerSQL / NoSQL
System Output
// CEO Engineering Environment
using System;
using System.Threading.Tasks;
using System.Collections.Generic;

namespace HalerkaDigital.CEO {
    public class ValentineInit {
        public static async Task Main() {
            var stack = new[] {
              ".NET", "Agentic Development", "React", "AWS", "Docker"
            };
            Console.WriteLine("Booting CEO engineering workspace...");
            foreach (var s in stack) {
                await Task.Delay(80);
                Console.WriteLine($"[OK] {s} ready.");
            }
            Console.WriteLine("Status: BUILDING WITH INTENT");
        }
    }
}
Key Work

Secure GovTech Platform

Improving a high-security, large-scale .NET platform in a regulated environment while streamlining developer onboarding and integration.

Senior .NET Software Engineer

Windows Desktop Applications

Led end-to-end development and Microsoft Store releases for high-performance Windows apps, including Bluetooth, DirectX, and low-level networking integrations.

.NET Software Engineer

Services

01

.NET & Backend Development

Build ASP.NET Core APIs, business systems, and integrations with payment providers and government registries. Our work includes LegalX, a legal operations CRM, and CertVal, a certificate and digital-signature workbench.

02

Cloud, DevOps & Observability

Set up AWS or Azure infrastructure, container deployments, automated delivery, and observability. Our team experience includes Docker and Argo CD deployments for Charity Lab Foundation authentication services.

03

Windows Application Development

Develop Windows applications with WinUI 3, WPF, UWP, and Windows API integrations, from device and Bluetooth connectivity to Microsoft Store releases. Enhanced Clipboard is one example of our desktop application work.

04

Scalable Web & API Integrations

Connect products and partners through secure REST, GraphQL, and SOAP APIs. We implement dependable authentication and authorization with OAuth 2.0, JWT, Keycloak, and FusionAuth.

05

Full-Stack Web Systems

Take web products from first workflow to production with React, Angular, TypeScript, Tailwind CSS, HTMX, and ServiceStack. We create responsive experiences backed by dependable application architecture.

PROJECTS

0404 / 06

Marketing automation

ShoMark

ShoMark turns raw video into coordinated, ready-to-publish campaigns. One guided workflow covers upload, configuration, AI review, scheduling, and performance tracking—helping marketing teams launch across channels with less manual work.

  • .NET Core
  • React
  • AI workflow
  • PostgreSQL
ShoMark campaign upload workflow
ShoMark campaign configuration
ShoMark AI review screen
ShoMark campaign dashboard
01 / 04
0606 / 06

Cross-platform clipboard app

Enhanced Clipboard

Enhanced Clipboard gives Windows and macOS users a secure, searchable history that follows them between devices. Frequently used content stays easy to find and reuse without compromising how it is exchanged or stored.

  • Windows
  • macOS
  • Secure sync
  • Clipboard history
Enhanced Clipboard history and code preview
01 / 01
0101 / 06

Legal operations CRM

LegalX

LegalX brings client, contract, task, document, and conversation workflows into one legal operations platform. Integrated messaging, PDF generation, dashboards, and reporting replace scattered tools with one dependable source of truth.

  • ASP.NET Core
  • React
  • PostgreSQL
  • Nginx
LegalX reporting dashboard
LegalX client workspace
LegalX communication workflow
01 / 03
0303 / 06

Cryptographic workbench

CertVal

CertVal makes certificate and digital-signature work easier to manage in one secure browser workspace. Users can verify or apply signatures, inspect containers, and monitor certificate health with a clearer path through complex validation tasks.

  • .NET 10 / C#
  • Dapper
  • FusionAuth
  • SQL Server
CertVal cryptographic workbench landing page
CertVal certificate monitoring dashboard
CertVal signature verification utility
01 / 03
0202 / 06

AI résumé builder

CVForge

CVForge turns a few details into a polished résumé tailored to the role. AI-guided onboarding, adaptable templates, multilingual content, and PDF export take users from a blank page to an application-ready document faster.

  • AI generation
  • Responsive web
  • Localization
  • PDF export
CVForge template gallery
CVForge guided name step
CVForge target role step
CVForge résumé editor
CVForge document preview
CVForge export experience
01 / 06
0505 / 06

Anime streaming platform

Dali Bude Dub

Dali Bude Dub combines a responsive anime streaming experience with a powerful publishing workflow and a Telegram bot for direct audience updates. Uploads to R2 storage are automatically segmented and generated in multiple resolutions for smooth, adaptive playback across devices.

  • Admin panel
  • Telegram bot
  • R2 storage
  • Video processing
  • Adaptive streaming
Dali Bude Dub release catalogue
Dali Bude Dub title details and ratings
Dali Bude Dub episode player
Dali Bude Dub tablet interface
Dali Bude Dub mobile interface
01 / 05
Before we build

Software development FAQs

Discuss your project
What backend software do you build?

We build .NET and ASP.NET Core APIs, business systems, and integrations. Project examples include LegalX for legal operations and CertVal for certificate and digital-signature workflows.

Can you develop native Windows applications?

Yes. Our Windows stack includes WinUI 3, WPF, UWP, and Windows APIs. Team experience includes Bluetooth, DirectX, networking integrations, and Microsoft Store releases.

What cloud and DevOps work do you offer?

We work with AWS and Azure, container deployments, automated delivery, and observability. Team experience includes Docker, Nginx, and Argo CD.

How do we discuss a project?

Email contact@halerka.digital with what you are building, where it is stuck, or what needs to scale. You will speak directly with the engineers. Agency engagements are governed by a separate agreement.