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Senior Fullstack & AI Automation Developer

From idea to production — in weeks, not months

for your business

If your dev team is too slow, too expensive, or simply doesn't exist — I deliver. Scalable B2B apps, e-commerce, CMS, PWA and AI automations. 3+ years commercial experience, 20+ shipped projects, 0 missed deadlines.

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How I can help you

End-to-end software development and business process automation services.

Web Applications

I build modern SPA, PWA, CMS, and e-commerce applications. High-performance, responsive interfaces built with Angular, React, or Next.js that power your business processes.

SPA / PWACMS SystemsB2B E-commerceAdmin Dashboards

Backend & API

I architect scalable backend systems with Symfony and Node.js. REST APIs, third-party integrations, database optimization, and zero-downtime production environments.

REST APIScalable ArchitectureSystem IntegrationsDatabase Optimization

Automation & AI

I automate repetitive processes using n8n, Make, and LLM integrations. Lead scoring, document generation, intelligent workflows that save your team hours every week.

n8n / MakeLLM IntegrationAutomated Lead ScoringDocument Generation

Consulting & Audit

I perform code reviews, performance audits, and architecture assessments. I help with legacy system migrations, optimization, and selecting the right tech stack.

Code ReviewPerformance AuditSystem MigrationsTech Stack Selection

Why work with me

A combination of solid commercial experience with an engineering approach to every project.

3+
Years of commercial experience
20+
Completed projects
2
Companies as employers
5
Foreign languages

Fast delivery

A proven workflow and Scrum experience allow me to deliver results in short iterations.

Clean, tested code

Design patterns, SOLID principles, and thorough testing ensure maintainable code.

Transparent communication

Regular demos, progress reports, and proactive risk communication.

Business value focus

Every technical decision serves business goals, not trends.

Fullstack competencies

From frontend through backend to DevOps — I deliver projects end-to-end.

AI-first approach

I integrate AI/LLM solutions where they bring real time and cost savings.

Tech Stack

Tools and technologies I use daily in commercial projects.

Frontend

AngularAngular
ReactReact
Next.jsNext.js
TypeScriptTypeScript
Tailwind CSSTailwind CSS

Backend

SymfonySymfony
PHPPHP
Node.jsNode.js
PostgreSQLPostgreSQL
MySQLMySQL

DevOps

DockerDocker
GitGit
CI/CD
Kong
PrometheusPrometheus

AI & Automation

n8n
OpenAI API
LangChain
Make

How I work

A clear, proven process that minimizes risk and maximizes value at every stage of collaboration.

01

Analysis & Discovery

I thoroughly understand your business needs, analyze requirements, and define the project scope. Together, we establish goals, KPIs, and expected outcomes.

02

Design & Architecture

I create the technical architecture, prototypes, and implementation plan. I select the optimal tech stack and present the proposed solution for approval.

03

Implementation & Iterations

I deliver the project in short sprints with regular demos. Clean code, code reviews, and testing at every stage — you have full visibility into progress.

04

Deployment & Support

I handle production deployment, CI/CD setup, and monitoring. After launch, I provide ongoing technical support and application maintenance.

Selected projects

Projects where I delivered measurable business value for clients across various industries.

Pharmaceutical sector

Pharmacy ordering system

Problem

Pharmacies needed an efficient tool for ordering drugs from wholesalers, managing invoices, and tracking deliveries — without constant phone calls.

Solution

A web application 'Pharmacist's Assistant' with a CMS panel, enabling fast ordering, delivery tracking, and automated invoice handling.

Value

Order placement time reduced by ~60%, manual invoice handling eliminated.

AngularTypeScriptREST API
Pharmaceutical sector

Aptomat — medication pickup terminals

Problem

Patients could only pick up medications during pharmacy hours, creating queues and limiting service availability.

Solution

An innovative parcel-locker-style solution — self-service medication pickup terminals integrated with pharmacy systems.

Value

24/7 availability, reduced staff workload, improved patient experience.

AngularTypeScriptHardware Integration
HoReCa sector

PWA ordering app for pizza chain

Problem

A national pizza chain needed a fast, mobile ordering app to replace an outdated system, with offline support.

Solution

A Progressive Web App with full ordering capabilities, POS and receipt printer integration, running smoothly on any device.

Value

Online orders increased by ~35%, order fulfillment time reduced.

AngularSymfonyPWAPOS Integration
Process automation

Smart Lead Automation

Problem

Manual categorization of contact form leads was time-consuming and delayed sales follow-ups.

Solution

An n8n workflow integrating forms with CRM, using LLM for intent analysis, lead categorization, and drafting personalized responses.

Value

Lead response time reduced from hours to minutes, ~40% time savings for the sales team.

n8nOpenAI APIWebhooksCRM Integration

Frequently asked questions

Let's talk

Have a project idea, need technical support, or want to automate processes in your business? Get in touch — I'm happy to discuss your needs and propose a solution.

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Mikołaj Sumera
SD.
Portfolio / CV

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