Wlodzimierz Wozniak

AI/ML • Kraków, Poland • UTC+01:00 • In office, Partially remote, Fully remote • Work permits: Poland • English: C1 • Available in 2 weeks

Software Developer

12+ years exp

Swift

Java

TypeScript

Python

Dart

Active 9 days ago

+48 (782) 441098

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Overview

Technical skills

Timeline

Roles

Overview

Senior software developer focused on mobile (native iOS) and full-stack product engineering. Experienced delivering production iOS apps and building web and backend systems using Java/Spring Boot and Angular/TypeScript. Builds AI-powered products including LLM integrations and GenAI SaaS using cloud services on Google Cloud Platform.

Technical skills

Swift• Senior • 12y+

Java• Senior • 8y+

TypeScript• Senior • 8y+

Python• Middle

Dart

Databases

SQLite• 10y+

MySQL• 7y+

PostgreSQL• 4y+

AI/ML

Fine-tuning

LLM

Vertex AI

OpenAI SDK

Frontend

React.js

Angular• 10y+

Next.js• 10y+

Mobile

Flutter

MVP

SwiftUI

TestFlight

UIKit

Firebase• 12y+

DevOps

Rest API• 11y+

GCP• 5y+

Google Cloud Run

Timeline

Independent Developer / Product Owner • Middle

Freelance / Independent • Freelance

Aug 2014 to Present 12 Years Kraków In office

Founded and built multiple GenAI product offerings across UI/UX and full-stack delivery. Developed Montento.com with Next.js and TypeScript using Firebase/GCP and an OpenAI-based platform for AI features. Built Simplora.eu (AI speech) using Vertex AI, Cloud Run, Python and TypeScript, and delivered mobile and web components. Created Beeperlink.eu using Angular and TypeScript on Google Cloud Platform, and managed Upwork pre-sales plus TestFlight beta and App Store release workflows.

Next.js

TypeScriptsince 2014

Firebase

GCP

LLM

Vertex AI

Google Cloud Run

Python

Angularsince 2014

Senior Software Developer / Product Owner • Senior

ELTE GPS • Full-Time

Jul 2020 to Jun 2026 5 Years 11 Months Kraków In office

Delivered iOS features and built Java/Spring Boot REST APIs with backend integrations for an enterprise waste management system, including unit and functional testing. Translated business requirements into delivery priorities and release planning. Prepared an AI implementation roadmap and solution concepts for business-process automation and aligned stakeholders across business and engineering teams.

Java

Spring Boot

Rest API

Senior Software Developer • Senior

Sky and Space Global • Full-Time

Feb 2018 to Mar 2020 2 Years 1 Month Kraków In office

Developed an iOS communication application with messaging and PJSIP-based voice using Swift and Objective-C. Built a web client portal with Angular and TypeScript. Implemented Java/Spring backend services and REST APIs with IoT integrations, including unit and functional testing.

Swift

Objective-C

Angular

TypeScript

Javasince 2018

Spring Bootsince 2018

Rest APIsince 2018

iOS Developer • Middle

Reality Games • Full-Time

Jun 2017 to Feb 2018 8 Months Kraków In office

Owned iOS development end-to-end, delivering an MVP and subsequent production application. Supported a high-traffic release with strong stability metrics and managed App Store delivery and ongoing maintenance. Coordinated iOS production readiness and fixes based on app performance.

iOS Developer / Project Manager • Lead

Quiks Inc. • Full-Time

Jan 2016 to Dec 2016 11 Months Kraków In office

Developed an iOS messaging application and supported cross-platform collaboration with iOS, Android and web teams. Planned and executed project delivery activities, aligning engineering work with release goals. Helped coordinate tasks across teams to deliver product updates.