Oleksandr Melnychuk

Raw Material Checking ERP (MVP). Designed, built, and deployed in two weeks by a team of two as the final project of a DevOps training program.

• Developed a microservice-based ERP using Angular, ASP.NET Core, PostgreSQL, and role-based workflows for raw material validation.
• Configured and automated enterprise DHCP and DDNS networking with Kea DHCP and BIND 9.
• Deployed the application on Docker Swarm using a private registry, Traefik as a reverse proxy, and overlay networking.
• Set up monitoring with Prometheus, Grafana, and PostgreSQL exporters to track application and infrastructure health.
• Provisioned and configured the on-premises Proxmox infrastructure using Bash, Python, and Ansible.

STACK: Docker Swarm / Ansible / Prometheus / Grafana / Proxmox / Angular / ASP.NET Core / PostgreSQL

LINK: [View project on GitHub]

Design and development of a full-stack application in a lab environment: implementation of a layered architecture with ASP.NET Core Web API, integration of external APIs, database management with SQL Server, and frontend interaction through Blazor WebAssembly.

• Developed a multi-layered application using ASP.NET Core Web API, Entity Framework, and SQL Server.
• Built a Blazor WebAssembly frontend consuming a centralized backend API.
• Implemented core features including CRUD operations, external API integrations, and real-time data retrieval.

STACK: C# / ASP.NET / REST API / Web / Databases / External APIs / xUnit

LINK: [View project on GitHub]

Practical administration of systems and networks in a virtualized lab: Linux automation with Python, Bash, and Ansible; Proxmox infrastructure (VMs and LXC containers); network configuration (routing, DNS, DHCP); and deployment of application services such as HAProxy, Apache, Nginx, MariaDB, and PostgreSQL.

• Automated Linux administration workflows with Bash, Python, and Ansible playbooks.
• Managed Proxmox virtual infrastructure with VMs and LXC containers for multi-service labs.
• Configured network services including routing, DNS, and DHCP for isolated enterprise-like scenarios.
• Deployed and tested core services: HAProxy, Apache, Nginx, MariaDB, and PostgreSQL.

STACK: Linux / Ansible / Proxmox / Bash/Python / Containers / Web Servers / Proxies / Networking

Graduation project focused on designing and implementing a prototype ERP system for manufacturing process management.

• Analyzed production workflows and defined system requirements.
• Designed architecture, UML models, and relational data schema.
• Implemented a desktop ERP prototype using Python and Qt.
• Included order tracking, production stages, documents, and analytics.

STACK: ERP / Python / Architecture / UML

LINK: [View project on GitHub]

Full-stack academic web project focused on responsive UI, dynamic content, and database-driven workflows.

• Structured frontend with adaptive navigation and interactive components.
• Backend with PHP form handling, validation, and MySQL persistence.
• Relational database design with ER modeling and normalization.
• Responsive layout optimized for desktop and mobile devices.

STACK: Frontend / Backend / UI/UX / MySQL

Academic SDLC project focused on requirements analysis, system design, and project evaluation.

• Analyzed domain and specified functional and non-functional requirements.
• Produced UML diagrams (use case, activity, component, sequence).
• Designed system architecture and selected development methodology.
• Estimated project complexity and cost using Function Point Analysis.

STACK: SDLC / UML / Architecture / Documentation

Desktop production control tool combining a WPF interface with SQLite and role-based access.

• Implemented production stage monitoring, status updates, and validation.
• Designed role-aware screens for operators and supervisors.
• Linked WPF UI to SQLite persistence for day-to-day tracking.

STACK: C# / WPF / SQLite / Desktop Application / Production Systems

Relational production database in MS Access to track orders across assembly, testing, painting, packaging, storage, and shipment.

• Modeled normalized schemas and SQL queries for production workflows.
• Built user forms to register orders, stages, and inventory movement.
• Generated structured production reports for tracking and audits.

STACK: SQL / Relational Databases / MS Access / Production Tracking

• Windows 10/11, Windows Server.
• Linux administration: RHEL, Debian, SUSE, Alpine, and systemd.
• Proxmox: VM/LXC lifecycle, cluster management, and virtual networking; VMware, Hyper-V, VirtualBox.
• Hardware assembly and diagnostics; BIOS/UEFI configuration.
• Docker: Dockerfiles, networks, Docker Compose, Docker Swarm.

• Python: CLI scripts, PySide6, data handling, logging, algorithms.
• Bash: automation, scheduled tasks.
• C#: OOP and xUnit testing; ASP.NET Core, Entity Framework, and REST APIs.
• Angular and TypeScript.
• Ansible: IaC, playbooks, configuration management, deployment.

• Data modeling.
• SQL (DDL, DML, DQL, T-SQL).
• SQL Server, MySQL, SQLite, MS Access.
• Deploying PostgreSQL, MariaDB, SQL Server.

• TCP/IP, TLS/SSL, IP addressing, routing, and the OSI model.
• DNS and DHCP with BIND 9 and Kea; Linux bridges and troubleshooting.
• SSH; high availability and load balancing with Nginx, HAProxy, and Keepalived.

• JetBrains IDEs, VS Code.
• Git and continuous improvement.
• GitLab CI, TeamCity, Trivy.
• Agile methodologies.

Applied and strengthened my practical skills in DevOps and infrastructure within a modern, fast-evolving R&D environment.

TOPICS: DevOps / Infrastructure

Docker, Kubernetes, Jenkins, Ansible, Azure Cloud, Prometheus/Grafana, REST APIs, Agile, TDD, and advanced networking.

TOPICS: Linux / Networking / Virtualization / Backend / TDD / Containers / IaC / CI/CD

Tavrija State Agrotechnological University, Ukraine - algorithms, networking, software engineering.

TOPICS: Programming / Project Planning / Mechanics / System Analysis / Web Development / Desktop Development

Instrument Making Professional Pre-Higher College, Ukraine - programming basics, problem solving, documentation.

TOPICS: Databases / Desktop Computers / Algorithms / Mathematics / Software Lifecycle

• Docker Deep Dive - Nigel Poulton (Leanpub) - read.
• Head First Agile - Andrew Stellman and Jennifer Greene (O’Reilly Media) - read.
• Cloud Native - Boris Scholl, Trent Swanson, and Peter Jausovec (O’Reilly Media) - read.
• Head First Networking - Al Anderson and Ryan Benedetti (O’Reilly Media) - currently reading.