WEB PRESENCE · SYSTEMS · PRODUCTION

Web systems built for production.

I design, modernize and operate web systems—from focused launches and AI integrations to difficult backend migrations and production incidents. You get direct technical judgment and ownership through delivery.

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Bahdan Hal
Gdańsk, Poland PHP · Symfony · Laravel Linux · Docker · AI 5+ years in software

I build and take responsibility for online systems end to end: websites, integrations, AI and MCP-powered tools, from the first honest technical decision through deployment, monitoring and the awkward production incident nobody can reproduce.

01

Backend systems

Symfony and Laravel applications, legacy migrations, data-heavy workflows, APIs, integrations, queues, and the unglamorous reliability work that keeps them running.

02

Practical infrastructure

Docker, Linux hardening, migrations to cost-effective VPS and bare metal, mail deliverability, incident recovery, and production debugging.

03

AI, MCP and custom tools

AI integrations, MCP servers, APIs, internal tools and workflow automation designed around a real job. I actively use and test these systems myself, so the advice comes from production practice rather than demos alone.

WHAT I CAN TAKE OFF YOUR PLATE

One person for the whole technical journey

I can own a focused delivery, join an existing team, or investigate one stubborn problem. You get a direct technical opinion, clear trade-offs and somebody who stays for production.

01

Online presence

A fast bilingual website, landing page, service portal or practical tool with domains, email, analytics choices, SEO foundations and deployment handled together.

02

End-to-end delivery

Discovery, architecture, backend, integrations, infrastructure, release and handover. No gap between ‘the feature is coded’ and ‘it works for real users’.

03

AI integrations and MCP servers

Model selection, secure tool access, retrieval, structured outputs, MCP servers, agent workflows, evaluation and observability—integrated into an existing product or built as a focused new tool.

04

Workflow automation and adoption

I map repetitive work, prototype the useful part, connect the systems and help the team adopt it. I can consult on what to automate, what to keep human and how to verify the result.

05

Night migration or deployment duty

Careful cutovers, data migrations, rollback plans and live production support when the safest window happens to be at night.

06

Strange production mysteries

The site stalls on Tuesdays at a random minute between 12:00 and 12:10, the code looks innocent and useful logs do not exist? I instrument, reproduce and follow the evidence.

07

Legacy, upgrades and speed

Framework and PHP upgrades, dependency recovery, test coverage around risky code, database and cache tuning, and gradual modernization without a reckless rewrite.

08

Audit with a human touch

Architecture, reliability, security, performance, SEO and infrastructure reviewed in context. You get an honest opinion and a prioritised plan, not a ceremonial PDF.

SELECTED EXPERIENCE

Recent work

  • Freedom Mobile

    Backend development and internal agent tooling for a telecommunications platform, including integrations, stability work, and difficult production defects.

  • Gdańskie Wydawnictwo Oświatowe

    Modernised Symfony and Laravel systems used by millions, built editorial and education tools, and integrated generative and vision models into real workflows.

  • Independent consulting

    Linux security, migrations, SMTP deliverability, API integrations, and focused backend work for clients running real systems on practical budgets.

UPWORK

What clients say

View Upwork profile →
★★★★★
„Easy to work with. Great communication. Excellent ability.”
Rollup build repair
★★★★★
„Perfect freelancer! Was a pleasure to work with him.”
Overnight Shopware server transfer
OWN / PERSONAL PROJECTS

Things I build for myself

A couple of live products where I own the idea, code, infrastructure and the long tail of keeping them useful.

IleZa.pl used electronics price radar homepage
IleZa.plPrice intelligence

A calmer way to understand used tech prices

A Polish price radar for used electronics, with curated observations, market context and practical tools for deciding what something is really worth.

Visit project →
StackHal developer and infrastructure tools homepage
StackHalDeveloper toolbox

Small tools for serious technical work

A growing collection of free developer, SEO and infrastructure tools: focused utilities for the moments when a quick answer beats another heavyweight platform.

Visit project →
Bahdan Hal on a mountain summit
FIELD TESTING

The only incident here is the weather.

The same rules help in production: prepare, simplify and leave a way back.

FIRST TECHNICAL CONVERSATION

Show me what is failing

Send an email or phone number and a short description. I will identify the first useful check, tell you whether I can help, and outline the next step.

  • A link and two sentences are enough.
  • Useful for migrations, incidents, integrations and new systems.
  • The first conversation is free.
  • I will say when I am not the right person.
Stored privately on this server so Bahdan can follow up. No mailing list or automated sales sequence.

CONTACT

Have a challenge—or simply an interesting idea?