a
artemlab

Artem

@artemlab
Ukraine
Englisch, Ukrainisch
Einige Informationen werden in englischer Sprache angezeigt.
Über mich
Hi! I’m a Full-Stack .NET Developer. I build robust, responsive web applications and scalable backends focused on clean architecture and high performance. My Expertise: Backend: C#, .NET Core, ASP.NET Core Web APIs, EF Core Frontend: Blazor, HTML5, CSS3, JavaScript Databases: PostgreSQL, MS SQL Server, Query Optimization Architecture: Clean Architecture, REST APIs, Docker Delivering clean code, clear communication, and fast delivery. Let’s discuss your project!... Mehr lesen

Kompetenzen

a
artemlab
Artem
offline • 
Durchschnittliche Antwortzeit: 1 Stunde

Meine Dienstleistungen

Benutzerdefinierte Websites
I will build custom full stack web application
Ab80 $ / ProjektWeitere Details
Datenbank-Design
I will boost database performance in ms sql or postgresql
Ab35 $ / ProjektWeitere Details

Portfolio

Arbeitserfahrung

Freelance

Senior .NET Full-Stack Engineer

Freelance • Selbstständig

Apr 2024 - Present • 2 yrs 6 mos

Responsibilities: Led the end-to-end development of custom web, API, and desktop applications using C#, ASP.NET Core, Blazor, and WPF. Designed modular and scalable architectures utilizing Clean Architecture, CQRS, and MediatR to ensure long-term maintainability for clients. Built, documented, and secured RESTful APIs with JWT authentication, role-based permissions, and caching layers. Delivered tailor-made database architectures and optimized query performance using PostgreSQL and MS SQL Server. Achievements: Successfully completed and delivered 20+ custom software and automation projects for international clients on schedule. Maintained a 100% project completion rate with zero critical production bugs reported post-deployment. Optimized legacy database queries and API pipelines for multiple clients, cutting server response times by 40–50%. Automated manual business operations for clients by developing bespoke integration utilities and background workers.

GitHub

GitHub

Selbstständig • 3 yrs 5 mos

DevOps / Backend Developer

Dec 2022 - Apr 2024 • 1 yr 4 mos

Responsibilities: Developed lightweight backend services, API endpoints, and background workers in C# / .NET Core. Containerized applications using Docker and managed deployment configurations on Linux/Ubuntu server environments. Automated routine server deployments, code integration checks, and database migrations via CI/CD workflows. Created custom automation scripts for bulk data processing, hardware provisioning, and system monitoring. Achievements: Automated complex multi-step provisioning tasks, reducing manual configuration time by 75%. Containerized legacy backend workflows into Docker, standardizing development and production server environments. Implemented automated backup and health-check scripts, ensuring zero unplanned data loss during scheduled server migrations.

IT Services & System Administration

Nov 2021 - Dec 2023 • 2 yrs 1 mo

Responsibilities: Administered enterprise Windows and Linux server environments, managing access controls, network routing, and VPN configurations. Monitored network infrastructure, diagnostics, and firewall rules to maintain security and low network latency. Configured automated disaster-recovery backup routines and performed regular system integrity audits. Provided technical problem resolution and hardware/software troubleshooting across internal departments. Achievements: Maintained 99.9% network and internal server uptime across multi-server environments. Restructured internal backup protocols, slashing disaster recovery turnaround time by half. Streamlined user onboarding and access management by scripting account setup and workstation configurations.