Karol Wojtaszek

Route 53 Sendgrid SparkPost Gmail Google Apps MailChimp SPF Amazon AWS Atlassian Cloud Leadfeeder Mapbox Webflow Hubspot Google Dynamic Remarketing Vimeo Facebook Widget Bootstrap Framework Google Tag Manager YouTube Google Font API Facebook Custom Audiences DoubleClick Facebook Login (Connect) Shutterstock Cedexis Radar Multilingual Adobe Media Optimizer Google Analytics Linkedin Marketing Solutions Ruby On Rails Google Play DoubleClick Conversion Twitter Advertising Hotjar Mobile Friendly StatCounter

flutter react web development kubernetes kotlin ios android objectivec swift elixir vuejs frontend development backend development mobile application development nodejs nextjs postgresql mobile development javascript phoenix product designer project management agile qa it services & it consulting software development mvp development product ownership cross-functional teams user experience design saas product enhancement agile project management mobile app development backend integration cloud cost optimization quality assurance user retention strategies seo implementation data analytics digital product strategy technical partnerships end-to-end delivery custom software solutions lean methodology user testing subscription-based pricing remote team collaboration performance monitoring retail technology ui/ux improvements automation solutions legacy code refactoring e-commerce platform development native development user engagement features gamification business impact assessment enterprise scalability business metrics ai integration customer feedback analysis market expansion strategies development insights product metrics improvement user base growth network security solutions digital transformation business development support innovative software solutions flexible working models strategic consulting information technology & services mobile internet productivity enterprise software enterprises computer software b2b management consulting