AI Automation & Full-Stack Engineer | Warsaw, Poland
I build reliable automation systems that remove manual work.
I design full-stack web applications, API integrations, and AI-assisted workflows for startups, e-commerce teams, HR, and finance operations. My focus is simple: turn messy business processes into scalable software that saves time and money.
CRM event
new_contractValidation
payload.cleanAI check
risk: lowPayroll sync
queuedAI
guardrail
Manual hours
-40h/mo
Annual impact
$30k+
Errors
blocked
$ contract_sync --validate --queue
> contract_verified · status: shipped_to_production
$30k+
Annual cost saved by automating payroll workflows
~40h
Manual work removed per month on one process
5+
Shipped projects across web, mobile, and automation
3+ yrs
Hands-on building software, from low-level to full-stack
Full-Stack
Modern UIs, APIs, data models, async processing
Integrations
REST APIs, webhooks, retries, idempotency
AI Workflows
LLM outputs validated before they reach production
ROI Calculator
Estimate how much automation could save your team.
Put in rough numbers for a repetitive process. The calculator shows monthly savings, annual savings, recovered hours, and payback time. Then ask Gemini for a short business read on whether the case looks strong.
Projected annual savings
$23,400
Monthly saved
$1,950
Hours freed
30h/mo
Payback
3.1 mo
First-year net impact
$17,400
Estimate only. Real ROI depends on process complexity, data quality, integrations, and rollout scope.
AI business read
Gemini explains whether this case looks worth automating. Numbers stay calculated locally.
AI Project Advisor
Not sure where to start with automation?
Pick your business area, describe the pain point, and get a tailored recommendation based on real portfolio work — approach, stack, and next steps.
Select a business area above to continue.
Selected work
A project timeline from early Java systems to production-ready automation and full-stack platforms.
These projects show the path from desktop Java applications and REST API foundations to mobile-first platforms, async automation services, and a deployed personal brand site.
CentralHub Fin & HR Suite
$30,000/year savedBusiness automation system for Polish HR and payroll workflows, CRM data validation, and payroll SQL Server imports.
CryptoExchange — Crypto & FX Trading Platform
Web + mobile platformFull-stack crypto and FX exchange with a React web app, Expo mobile app, and a Spring Boot + PostgreSQL backend with JWT auth, orders, live market rates, and AI news.
Spring Boot REST API
API foundationA Java 21 / Spring Boot REST API with PostgreSQL, Spring Data JPA, a layered Controller/Service/Repository architecture, DTOs, and CRUD endpoints.
JavaFX PC Configurator
First serious Java appJavaFX desktop PC configurator with OOP domain models, CPU/motherboard socket compatibility, PSU power validation, pricing logic, and custom CSS UI.
artsiom.dev Portfolio
Live personal brandA personal engineering brand site built with Next.js, TypeScript, Tailwind CSS, Vercel, GitHub Actions, CodeQL, Dependabot, branch rules, and production security headers.
Stack
Tools I use to ship reliable systems fast.
I prefer pragmatic technology choices: proven databases, asynchronous workers, typed validation, and automation-friendly APIs.
What people say
Clients value speed, clarity, and reliable delivery.
Feedback from people I have helped with technical projects, prototypes, and implementation support.
“Everything was clear, fast, and to the point - exactly what busy people need. No fluff, no wasted time.”
“Helped me deliver a complex project I could not have finished alone. Done properly and on time, saved me a huge amount of stress.”
“Built a clean REST API project quickly. Easy to communicate with and reliable - highly recommended if you value your time.”
Verified profile
Let's connect on LinkedIn.
The fastest way to reach me, see my full work history, and start a conversation about contracts, retainers, or collaboration.
Availability
Open to long-term remote contracts and part-time retainers.
I am focused on US/EU startups, digital agencies, and business teams that need full-stack delivery, integration pipelines, and AI-assisted workflows without building a large internal team.
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Direct address: bden5353@gmail.com