Marek Majchrzak
I am a Software Engineer and Project Manager with over 7 years of experience and a proven track record of delivering successful applications. I have worked in big and small teams and I enjoy both.
I specialize in React Native and web development.
I love collaborating with designers, stakeholders, and fellow developers to create meaningful products and scalable solutions.
React NativeReactWebTypescriptExpoNext.jsMobileOpenAI API
User ResearchAnalyticsData Driven DevelopmentDesign SystemStrategyLeadership
Senior Mobile Engineer and Teamlead
40k+ users. Fitness app with workouts and exercise programs. Top 1 in Polish App Store (in Fitness and Health) on the first day.
React NativeTypeScriptAzureMixpanelFirebaseTamaguiTeam managmentUser ResearchData
https://codzienniefit.app/
Tech Lead
50k+ users. AI tool to help seniors solve technical problems
React NativeReactNext.jsTypeScriptOpen AI API
https://www.lotti.ai/
Project Manager and Strategist
30k+ users. The fastest way to save a tagged note to Notion.
ManagementDesignDataUser Research
https://instantnotionapp.com/
Senior React Native Engineer
App for content creators. The app offered 1-on-1s and group sessions with professionals from various fields like sports, coaching law etc.
React NativeReactTypeScript
https://www.instagram.com/actiodaily/
Mobile Engineer and Co-founder
200k+ users. Sex education app in Polish.
React NativeTypeScriptAzureFirebaseTeam managementUser ResearchData
https://web.coztymseksemapp.pl/
Full Stack Engineer
Customer support web app and research web for map data visualisations
Vue.jsReactTypeScriptPython
https://www.tier.app/en/
From Intern to Software Engineer
Various project with many clients (Softwarehouse).
React NativeReactPythonVue.jsAngular
https://valuelogic.one/
Bachelor Architecture
I completed my degree, but even during my studies, I had already started working in IT.