PHP · WordPress · Front-End · Custom admin panels

Alexander Khrashchevskyi:Full stack Web Developer

Web developer with 7+ years of hands-on experience. I hand-code layouts from Figma and PSD mockups, port ready templates onto WordPress and Joomla, and build custom PHP back ends — including in-house admin panels and employee databases for companies. Delivered projects for clients in the UK, Saudi Arabia and Ukraine, from single corporate sites to portfolios of 300+ pages under active maintenance.

Kyiv, Ukraine · Ukrainian citizen · Open to relocation within the EU and to remote work. Available immediately upon signing the contract.

Open to work Alexander Khrashchevskyi — Full stack Web DeveloperKyiv, Ukraine — available for EU relocation and remote work
7+years of hands-on development
400+websites built and maintained
13CMS and e-commerce platforms
6peer-reviewed publications
Who you are hiring

An engineer who moved into the web — and kept the method

I started as a materials-science engineer and a published researcher. Six peer-reviewed papers train a specific habit: isolate one variable, measure the result, and reject the hypothesis that does not survive the measurement. Applied to code, that becomes methodical debugging, reproducible test cases and a refusal to guess at performance when it can be measured.

I am self-taught as a developer — I moved into web development through production work rather than formal IT courses. Seven years later that means I have shipped everything from a single landing page to a 300-page portfolio under active maintenance, and I have inherited a lot of other people's code. Taking over a neglected site, auditing its plugins, closing its vulnerabilities and refactoring it into something maintainable is a large and deliberate part of what I do.

Code I ownLayouts, PHP back ends and admin panels are written by me — not assembled in a page builder.
Cross-cultural deliveryProjects delivered for the UK, Saudi Arabia and Ukraine, working asynchronously across several time zones.
Security by defaultPlugin audits, CMS patching, hardening against brute force, injection and unauthorised file access.
Measured performanceCore Web Vitals, caching and load-speed work backed by numbers rather than impressions.
Core skills

The stack I actually work in every day

Not a list of everything I have ever opened — these are the tools that appear in production work.

01
CMS & E-commerce

WordPress, OpenCart, Joomla, Drupal, ModX, Bitrix, NetCat, Tilda

02
Back-End

PHP, MySQL, custom plugin & module development, REST integrations

03
Custom Development

Self-built admin panels and internal databases — employee records and document data, with role-based access, search and reporting

04
Front-End

HTML5, CSS3, SASS, JavaScript, React, Bootstrap, Gulp, responsive & cross-browser layout

05
Performance & Security

Core Web Vitals optimisation, caching, plugin audits, vulnerability hardening, CMS patching, backups

06
SEO

On-page & technical SEO, site architecture, PBN development, content optimisation

07
Tools

Git / GitHub, PhpStorm, VS Code, FileZilla, Figma, Photoshop, Linux (Ubuntu / Kali)

08
Layout Integration

Hand-coded HTML/CSS from Figma and PSD mockups; porting ready templates onto WordPress and Joomla; theme customisation

Back-end & PHP — 32%Front-end & layout — 28%CMS & integrations — 18%Performance & security — 13%SEO & content — 9%

Where the work actually goes

A rough split of a typical delivery week across the last two years.

PHPMySQLJavaScriptTypeScriptReactAngularVue.jsjQueryNode.jsHTML5CSS3SASSBootstrapTailwind CSSGulpWebpacknpmWordPressOpenCartJoomlaDrupalModXBitrixREST APIAJAXJSONGitComposerDockerNginxLinuxFigmaPhotoshop
AI-assisted development & prompt engineering

AI is a review layer on top of my work — not a substitute for it

I write and own my code. Claude, ChatGPT and Google Gemini sit on top of that workflow as a review and acceleration layer:

Comfortable evaluating AI output critically: verifying suggestions against documentation before anything ships to production.
Code editing and refactoringImplementing site changes, cleaning up legacy templates and reviewing pull-request-level diffs with AI assistance.
DebuggingReproducing, isolating and fixing front-end and PHP errors far faster than by manual tracing alone.
Security hardeningReviewing code and configuration for common vulnerabilities, tightening permissions and closing attack vectors on client sites.
Prompt engineeringWriting structured, reusable prompts for recurring tasks — code review, content generation, technical documentation and QA checklists.
Critical evaluationComfortable evaluating AI output critically: verifying suggestions against documentation before anything ships to production.
Professional experience

Seven years, nine roles, one direction

From WordPress layouts to custom PHP back ends and internal company tools.

06/2025 — Present Present

Web Developer

Gals AgroKyiv, Ukraine
  • Maintain and develop the corporate web presence of Gals Agro, one of Ukraine's largest agro-industrial groups — front-end, PHP back end and CMS work.
  • Apply AI-assisted review (Claude, ChatGPT, Gemini) to code fixes, refactoring and security hardening of production sites.
PHPCMSFront-EndSecurity
05/2024 — 06/2025

Web Developer

YotewoUnited Kingdom — Remote
  • Built and delivered custom websites for international clients across the UK, Saudi Arabia and other markets, adapting layout, language direction and content to each cultural context.
  • Owned projects end to end: requirements, theme development, integrations, testing and launch — working asynchronously across several time zones.
  • Introduced AI-assisted workflows (Claude, ChatGPT, Gemini) for code review and bug fixing, noticeably shortening turnaround on client change requests.
WordPressPHPFront-Endi18n
05/2022 — 05/2024

Web Developer

TopGuardKyiv, Ukraine
  • Designed and built a custom admin panel and database from scratch for the company's security-guard workforce: personnel records and document data, role-based access, search and internal reporting.
  • Rebuilt and maintained the company website back end, improving page load speed, security posture and long-term maintainability.
  • Audited and removed outdated or redundant plugins, cutting technical debt and eliminating known vulnerability vectors.
  • Hardened the site against common attack patterns (brute force, injection, unauthorised file access) and kept the CMS and dependency stack patched.
PHPMySQLAdmin panelSecurity
07/2020 — 02/2022

Web Developer

IEUKyiv, Ukraine
  • Extended site functionality and interactivity, restructuring the back end for cleaner, more scalable code.
  • Moved from front-end work into PHP development, taking on dynamic features and custom modules.
PHPJavaScriptRefactoring
11/2019 — 07/2020

Web Developer (PBN Projects)

LinkStreamKyiv, Ukraine
  • Created and launched 100+ websites across widely different niches — manufacturing, sports, gaming, IT and history — with content and design tailored to each topic.
  • Standardised deployment and templating to keep quality consistent at high volume.
WordPressSEOTemplating
03/2019 — 10/2019

Web Developer / SEO Specialist

Aweb SystemKyiv, Ukraine
  • Optimised and maintained a portfolio of 300+ client websites: loading speed, readability, UX and on-page SEO.
  • Refreshed content and technical SEO to improve search visibility and user engagement.
SEOPerformanceUX
01/2019 — 03/2019

Front-End Developer

SkyserviceKyiv, Ukraine
  • Integrated and customised CSS and JavaScript libraries to improve design, interactivity and perceived performance.
CSSJavaScriptUI
12/2018 — 01/2019

Junior Web Developer

ITVMKyiv, Ukraine
  • Built site structure in WordPress with custom HTML/CSS layouts and responsive interface improvements.
WordPressHTMLCSS
07/2016 — 08/2016

Engineering Internship

ANTONOV Serial PlantKyiv, Ukraine
  • Scientific and production practice in heat treatment of metals and alloys: phase transformations, optimisation of treatment parameters and industrial process implementation.
Materials scienceR&D
Selected work

Cases

A selection of delivered projects — corporate sites, e-commerce, fintech landings and platforms for clients in the UK, the UAE, Ukraine and beyond.

IEU

IEU

An institute educating students from Pakistan and other Asian countries, with a multi-page structure and dynamic content modules.

EducationPHPMulti-pageUnder NDA / offline
Education

Engineering degree, research track

Present
09/2025

Frantsevich Institute for Problems of Materials Science, NASU

PhD Candidate — Materials Science (in progress)

2018
2016

NTUU "Igor Sikorsky Kyiv Polytechnic Institute"

MSc — Thermal Treatment of Metals and Alloys

2016
2013

NTUU "Igor Sikorsky Kyiv Polytechnic Institute"

BSc — Thermal Treatment of Metals and Alloys

2013
2002

Specialised School No. 200

Secondary education — advanced study of English and French

Languages

Working languages

UKUkrainianC2 · Native
RURussianC2 · Native
ENEnglishC1–C2 · Fluent — client-facing
DEGermanA2–B1 · Basic — improving
Scientific publications

Six peer-reviewed papers in materials science

Laser and plasma surface modification of steels and alloys — conference proceedings and journal papers.

2018

Studying the Effect of Scandium on the Formation of a Quasicrystalline Phase in Al–Cu–Fe Ingots

Iefimov M., Golubenko A., Iefimova K., Khrashchevskyi O., Samelyuk A.
Frantsevich Institute for Problems of Materials Science, NASU, Kyiv

2018

Formation of Structural Inhomogeneities in the Near-Surface Layer of Austenitic and Carbon Steels under Pulsed Laser Irradiation

Khrashchevskyi A., Iefimov M., Dudka A.
XI International Conference of Students, Postgraduates and Young Scientists, Kyiv, pp. 181–184

2017

Peculiarities of Structure Formation in the Near-Surface Layer of U8 Steel under Laser Irradiation

Khrashchevskyi A., Iefimov M., Dudka A.
VII Int. Scientific Conf. "Materials for Use in Extreme Conditions", NTUU "KPI", Kyiv, pp. 133–135

2016

Study of Amorphization Processes in High-Strength Fe–B Coatings Produced by Argon Plasma Spraying

Iefimov M., Iefimova K., Dudka A., Khrashchevskyi A.
VI International Scientific Conference, NTUU "KPI", Kyiv, pp. 228–229

2016

Features of the Modification of the Near-Surface Layer of Carbon Steels Using a Pulsed Laser

Dudka A., Khrashchevskyi A., Pulkowski V., Danilenko M., Iefimov M., Iefimova K.
Electron Microscopy and Strength of Materials, IPMS NASU, Kyiv, pp. 51–56

2015

Regularities in the Structure Formation of Fe83B17 Coatings during Gas-Thermal Spraying

Iefimov M., Iefimova K., Dudka A., Khrashchevskyi A.
V International Scientific Conference, NTUU "KPI", Kyiv, pp. 198–199

Additional information

The practical details

AvailabilityImmediately upon signing the employment contract; open to relocation within the EU.
Work authorisationUkrainian citizen — eligible for EU temporary protection; open to employer-sponsored relocation.
Professional backgroundSelf-taught developer — moved into web development from engineering and materials science, learning through production work rather than formal IT courses.
Driving licenceCategory B.
StrengthsAnalytical thinking, attention to detail, fast learner, reliable under remote and cross-cultural collaboration.
Frequently asked

Questions I get before a project starts

Corporate sites, landing pages, online stores and internal tools. In practice that ranges from a single-page site to a 300-page portfolio under active maintenance, plus custom admin panels and employee databases built from scratch in PHP and MySQL.

I write the code myself. Layouts are hand-coded from Figma or PSD mockups — semantic HTML5, CSS3/SASS and vanilla JavaScript — and back ends are written in PHP. Page builders are used only when a client already runs one and wants to keep it.

As a review and acceleration layer, not a substitute for engineering. Claude, ChatGPT and Google Gemini help with code review at pull-request level, refactoring legacy templates, reproducing and isolating bugs, and security review of code and configuration. Everything is verified against documentation before it ships to production.

WordPress, OpenCart, Joomla, Drupal, ModX, Bitrix, NetCat and Tilda. WordPress, OpenCart and Joomla are the day-to-day platforms, including custom plugin and module development rather than only theme configuration.

Yes — that is a large part of the work. It usually starts with an audit: plugin inventory, known vulnerabilities, CMS and dependency versions, page speed and Core Web Vitals. From there outdated or redundant plugins are removed, the attack surface is closed and the code base is refactored for maintainability.

Both. I am a Ukrainian citizen, eligible for EU temporary protection and open to employer-sponsored relocation within the EU, as well as to fully remote roles. Availability is immediate upon signing the employment contract.

Ukrainian and Russian at native level (C2), English at C1–C2 — I have delivered projects for clients in the UK and Saudi Arabia working asynchronously in English — and German at A2–B1.

It shows up as method. Six peer-reviewed publications and a PhD track in materials science train you to isolate a variable, measure the result and reject a hypothesis that does not hold. Applied to code that becomes methodical debugging, reproducible test cases and a habit of measuring performance rather than guessing at it.

Contact

Let us talk about your project

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