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Eugen Punchenko / Full-Stack Engineer

Kyiv, UkraineRemote via Ukrainian FOP

Middle / Senior / Tech LeadFull-time or contract

LanguagesEnglish · German · Ukrainian · Russian

PHP · Laravel · Lumen · Symfony · Vue.js · TypeScript · AI-assisted product development

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Summary

Full-stack engineer with more than 10 years of commercial PHP experience across the Laravel, Lumen and Symfony ecosystems, including Symfony microframework work. I also build with Vue.js, JavaScript and TypeScript, modernising web products, APIs and databases. I use AI tools across research, implementation and review, and can contribute as a developer or take technical ownership of a team and its architecture.

Experienced in building systems that must operate reliably under real-world constraints: high load, distributed devices, unstable networks, long lifecycle products, and evolving business requirements.

Strong at:

I work across application code, infrastructure and connected devices, and I enjoy learning the tools a problem calls for.

Distributed video platform: Worked on a high-load platform spanning Android and TV applications and RockPi-based set-top devices. The work included video driver development and playback on ARM, Chromium and Mali, plus remote operation of thousands of devices over OpenVPN with network and certificate management.

Professional experience

Currently at TCB Hard + Software and open to a new role or contract opportunity.

Roles are listed by their documented start dates. Some 2019 projects overlap.

Feb 2020–present

Senior PHP Developer · TCB Hard + Software

PHP platform development and modernisation.

Digital signage: campaign player & VPN automation

Developed an existing technical foundation and database into a complete, operational digital signage platform.

  • Implemented a campaign player for image slideshows and video playback.
  • Automated player operation across private VPN networks.

Legacy device migration & release packaging

Designed a remote migration path for existing digital signage devices: a temporary RAM-resident environment installs a prepared Ubuntu-based system image, followed by application provisioning and startup.

  • Preserved existing Wi-Fi settings from the old storage so the replacement system could reconnect to the customer network automatically.
  • Rolled out in stages across geographically distributed customer sites, accounting for intermittently offline devices.
  • Delivered Python components as self-contained binary packages through CI/CD to reduce runtime dependency and compatibility problems.
Jan–Feb 2020

Senior PHP Developer · SYS Softwaresysteme GmbH

Laravel backend and Vue/TypeScript frontend.

Aug 2019–Jan 2020

Middle PHP Developer · Hallo Welt! GmbH

PHP development in the MediaWiki / BlueSpice ecosystem.

2019

Middle PHP Developer · Astarios

MediaWiki / BlueSpice work; Docker, Tomcat and NPM in the project stack.

Sep 2018–May 2019

Middle PHP Developer · Dyisy Ltd

Laravel dashboards and marketplace APIs.

Feb 2016–Jun 2017

Full-Stack Developer · UAT-Solutions

Laravel, Vue.js and MySQL product development.

Aug 2015–Jan 2016

SEO Specialist · Leo Studio

Search optimisation and web delivery.

BREADTH THROUGH CONCRETE WORK

My engineering experience, in context

My commercial foundation is PHP and full-stack development. My wider engineering work connects web products with infrastructure, connected devices, local AI tools and specialised applications. The examples below span professional work, independent products and active prototypes.

Commercial foundation

Web products & platform modernisation

More than 10 years of commercial PHP experience across Laravel, Lumen, Symfony and the MediaWiki / BlueSpice ecosystem. Work spans APIs, data models, multi-tenant platforms, Vue interfaces and legacy modernisation.

The connecting skill is working through an existing system, understanding its constraints and improving it across frontend, backend and operations.

Professional platform work

Digital signage & media playback

At TCB Hard + Software, developed an existing technical foundation and database into a complete, operational digital signage platform: campaign playback with image slideshows and video, plus automation across private VPN networks.

The wider media background includes Android/TV applications, ARM and RockPi devices, Chromium/Mali playback, remote access and certificate management.

Infrastructure & operations

Linux, networks & device lifecycle

A background in 24/7 ISP operations connects Linux administration, routing, DNS/DHCP, VMware, Ubiquiti, MikroTik, monitoring and remote device support.

Project work includes device provisioning and update tooling, initramfs/U-Boot update flows and Caddy route administration with validation and rollback. This is hands-on work across the application and the system it runs on.

Developer tooling & integration

Local AI & engineering automation

Maintained and extended a llama.cpp integration fork for Spark X2.5: C++ tool-call parsing, incremental streaming, reasoning replay and AMD Vulkan support. Built local-worker orchestration around a durable shared queue, bounded concurrency and result review.

Uses AI across implementation, tests and review. Tabula / Punchenko NNL extends this into experimental language and model workflows; research results remain under evaluation.

ffprocessor ↗

Product projects

Commerce, data migration & back offices

Fermershop combines a storefront with operational tooling. Catalog, pricing, stock and sales history were migrated from a 1C/BAS backup into portable application data, with database and configuration restoration in deployment.

Other commerce work includes the 6 Moments / Shop Jewel storefront and OpenCart extension packaging. The work connects customer-facing interfaces, business data and maintainable delivery workflows.

Practical tools

Desktop utilities & browser tools

Rust/Tauri projects include Duplicate Control for Excel and a macOS device-management desk. The Excel tool edits a copy of the selected worksheet while preserving the other workbook parts; the device desk brings API, VPN, SSH and update workflows into one interface.

TidyDrive includes device discovery/provisioning tools and an active cross-device ISO-control prototype. Frequent Tab is a local-only Chrome new-tab extension with history-based ranking. Hardware validation of the new TidyDrive Pocket flow is ongoing.

Duplicate Control releases ↗

Product integration

Telegram, catalogues & business workflows

Rezar combines a Python Telegram bot, a mobile catalogue, search and filtering, vehicle detail pages, enquiry handling and a catalogue administration interface.

The broader project portfolio also covers task marketplaces, family coordination interfaces, video utilities and tattoo-concept workflows. The common theme is taking a specific user task through to an operational product flow.

Rezar Mini App ↗

Device integration

Embedded systems & physical prototyping

Hands-on work with ESP32, ESPHome, Home Assistant, UART, RS-485 and CAN: device integration, firmware configuration, local web controls, OTA workflows and electronics debugging.

Projects connect physical hardware with software interfaces, including air-conditioner integration and climate-control interfaces. Soldering, connector work and 3D-printed enclosure prototyping complement the software work.

Independent projects

Games, interaction & creative production

Neon Crown explores gameplay and world systems with Unreal Engine and C++, including interaction, HUDs, scene integration and build/release tooling. MythicBoost is a Lua-based World of Warcraft add-on with a configurable HUD and gameplay analysis.

Electronic music production as Techno Punch adds composition, sound, artwork and video presentation. These projects show an interest in the full experience a person sees, hears and interacts with.

MythicBoost ↗

AI-NATIVE ENGINEERING

Agentic Engineering & AI-Assisted SDLC

I design AI-native engineering workflows where AI agents support the full delivery loop: problem framing, planning, implementation, testing, code review, deployment, monitoring, and support — with human ownership, validation, and production reliability.

Role positioning

  • AI-Native Software Architect
  • Agentic Engineering Lead
  • AI Platform & Automation Engineer

What I build

  • Agentic workflows for repeatable engineering and operations
  • AI-assisted SDLC loops with review, testing, observability, and rollback
  • Tool-using agents connected to APIs, repositories, CI/CD, and internal systems

From requirements to reviewed implementation

  1. Capture requests in Linear and clarify the requirements.
  2. Structure tasks and context with Claude.
  3. Coordinate implementation incrementally across multiple agents.
  4. Review the result against the original task, identify missing logic and direct the next iteration.

I keep the customer request, task specification and delivered result connected. My contribution includes problem framing, coordination and hands-on review of the implementation.

Core Strengths

  • 🧠 System & Architectural Thinking
  • 🏗 Scalable backend and platform architecture
  • 🔁 Legacy refactoring & technical debt elimination
  • ⚡ Performance optimization & bottleneck analysis
  • 🧩 Modularization of large codebases
  • 🔐 Security-focused system design
  • 🧪 CI/CD, automation, reproducible environments
  • 🌐 Network-aware architecture & remote systems
  • 🖥 IoT / embedded / device-driven systems
  • 🤖 AI-assisted development and automation workflows
  • 🔁 AI-native engineering, agentic workflows & AI-assisted SDLC
  • 📡 24/7 infrastructure operations, monitoring & incident troubleshooting
  • 🛠 Linux networking, DNS/DHCP, Ubiquiti, MikroTik & VMware environments
  • 📊 Traffic generation funnels & systemized traffic workflows
  • 🧵 Structured logical thinking and problem decomposition

Tech Stack

Backend

  • PHP (Laravel), Node.js, Python, TypeScript
  • REST APIs, WebSockets
  • Modular backend architectures
  • MySQL, PostgreSQL
  • Redis, S3-compatible storage
  • NestJS ecosystem familiarity

Frontend

  • Vue 2 → Vue 3 migration
  • Vite, modern JS tooling
  • Modular UI architecture
  • Drag & drop interfaces
  • Timeline-based UIs
  • Canvas & WebGL-based interfaces
  • Understanding of React, Next.js, Nuxt

DevOps / Infrastructure

  • Docker, GitHub Actions, CI/CD pipelines
  • Terraform (previously used; current workflow emphasizes CI/CD automation)
  • Linux-based systems (server & embedded)
  • Reproducible builds
  • VPN-based device connectivity
  • OTA updates and A/B deployment strategies
  • Marketplace application publishing and release processes

Networking & Security

  • Security-aware backend and infrastructure design
  • Network architecture and remote access systems
  • RouterOS / RouterBoard environments
  • Ubiquiti network infrastructure
  • DNS, DHCP, routing, Nagios and Zabbix monitoring
  • Gateway design and remote connectivity solutions
  • Secure device provisioning and update pipelines

Hardware / Embedded

  • ARM devices (Rock Pi, RK3588, Raspberry Pi-class hardware)
  • Custom Linux builds
  • Device provisioning and remote fleet management
  • IoT / Edge devices
  • Electronics prototyping, soldering, hardware debugging
  • 3D printing and physical prototyping workflows

Key Achievements

  • Digital signage: Delivered a complete digital signage platform with image/video campaign playback and automated operation across private VPN networks.
  • Enabled remote migration of an installed device fleet to a replacement system image, preserving customer network settings and using staged rollout and CI/CD-built binary packages.
  • Led architectural refactoring of a complex multi-tenant platform (Hotels / Resellers / End Clients)
  • Migrated legacy frontend stack to modern Vue 3 + Vite architecture
  • Designed modular backend structure replacing tightly coupled legacy logic
  • Built device fleet management and remote update pipelines for embedded systems
  • Designed scalable media pipelines with storage abstraction and licensing-aware workflows
  • Reduced technical debt through systematic removal of obsolete architecture layers
  • Established CI/CD pipelines enabling reproducible builds and safer deployments
  • Designed AI-assisted workflows for content generation and UI production
  • Built and maintained a local llama.cpp fork for Spark X2.5 with C++ tool-call parsing, streaming and AMD Vulkan support
  • Designed HRIT, a reproducible technical-assessment platform combining automated checks with AI-assisted scorecards
  • Built standalone native binaries for Python services to eliminate runtime dependencies
  • Designed traffic generation and processing funnels integrated into platform workflows
  • Implemented secure remote access architectures for distributed device fleets

Selected Projects & Earlier Experience

Local AI & Developer Infrastructure

  • ffprocessor: C++ llama.cpp fork for Spark X2.5 with local coding-agent integration, tool-call parsing, streaming and AMD Vulkan support Source on GitHub ↗
  • codex-skill: Python orchestration layer for multiple local AI workers with queueing and result review
  • HRIT: reproducible hiring-task platform with automated validation and AI-assisted evaluation

Infrastructure & Operations Background

  • ISP operations and quality assurance in 24/7 environments
  • Linux/CentOS administration, Bash, VMware, Nagios and Zabbix
  • Ubiquiti, MikroTik, routing, DNS/DHCP and network troubleshooting
  • Rock Pi backup tooling, embedded Linux and remote system support

Open Source & Low-Level Experience

HOW I WORK

Approach and scope

Architecture Philosophy

  • Prefer simple architectures that scale, not over-engineered systems
  • Strong separation between: domain logic, infrastructure, UI
  • Systems must be: debuggable, observable, replaceable
  • Security and maintainability are architectural concerns, not afterthoughts
  • Refactors are strategic investments, not cosmetic cleanup
  • Architecture should enable developers, not slow them down

Typical Responsibilities

  • Define and evolve system architecture
  • Break monoliths into maintainable modules
  • Design data models and API contracts
  • Own critical performance and security paths
  • Guide frontend architectural decisions
  • Design long-term platform strategy
  • Mentor engineers in architectural thinking
  • Translate business chaos into technical clarity
  • Design human-in-the-loop agentic workflows across the delivery lifecycle
  • Orchestrate AI agents across planning, implementation, testing, deployment, and monitoring

Selected Project Domains

  • Multi-tenant SaaS platforms
  • Media management systems
  • Device fleets & remote control systems
  • AI-augmented design and content workflows
  • Traffic acquisition and processing systems
  • IoT and edge infrastructure platforms

Work Style

  • Architecture-first mindset
  • Prototyping before large refactors
  • Pragmatic decisions over hype-driven tech
  • Clean code, predictable deployments
  • Strong documentation culture
  • Independent, focused, introvert-friendly work style

SELECTED WORK

Projects in practice

A few screens and devices from work across frontend, backend, games and electronics.

Caddy Panel showing reverse proxy routes and Docker container status
React · Express · Docker · Caddy

Caddy Panel

Panel for managing reverse proxy routes and seeing the containers behind them, with validation and rollback before reload.

Fermershop desktop storefront with product categories imported from 1C
Next.js · TypeScript · 1C data migration

Fermershop

A complete storefront paired with an operational back office. Catalog, prices, stock and sales history were migrated from a 1C/BAS backup into a portable data bundle, so the shop runs on its own prepared data rather than a live 1C connection. Deployment also restores the application database and configuration.

JavaScript · frontend · backend

CryptoFreelance

A freelance marketplace interface for tasks, applications, account activity and crypto-denominated payouts. The English panel above is a presentation of the interface, not a live account screenshot.

NeonCrown playable forest camp scene
Unreal Engine · game systems

NeonCrown

Playable forest camp with characters, HUD, interaction and world systems.

iHub climate control dashboard with lighting, ventilation, temperature and humidity controls
Preact · ESP32 · climate control

iHub

A local interface for managing climate conditions: lighting schedules, ventilation, temperature and humidity controls.

Beyond web software

Opened Bosch air-conditioner control board during an ESP32-C3 smart-home integration

Electronics & home automation

Hands-on prototyping, soldering and debugging with ESP32, RS-485 and CAN. Recently I adapted a Bosch air conditioner with an ESP32-C3 Super Mini, a direct connector and an improved antenna, then flashed the controller and connected it to my smart home.

Techno Punch — Polyrhythmic Drive cover art

TECHNO PUNCH

Polyrhythmic Drive

My electronic music: composition, production and visual presentation.

Open on YouTube ↗ · More music ↗

Contact

If you would like to discuss a role, project or collaboration, send me a message directly.

Contact me

📧 Email: jenyaukraine@gmail.com

💻 GitHub: github.com/jenyaukraine

Affordable development. Flexible pricing for contract work; scope and budget agreed directly.

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