Meet the People Behind App369
Our team combines 12+ years of software engineering experience with deep expertise in mobile, web, and AI technologies. Every project is led by a senior developer who has shipped production apps.
Simon Dziak
Founder & Lead Developer
Simon founded App369 in 2018 with a mission to build technology that drives real business results. With 12+ years of hands-on development experience, he has personally led the delivery of over 150 projects across mobile, web, and enterprise platforms.
His technical expertise spans Flutter, Swift, Kotlin, Vue.js, Node.js, Firebase, and Google Cloud Platform. He specializes in translating complex business requirements into clean, scalable architecture and has a track record of delivering projects on time and within budget.
Before founding App369, Simon built software for startups and enterprises across healthcare, fintech, e-commerce, and education. This cross-industry experience gives him a unique perspective on what makes software projects succeed.
Core Expertise
Recent Articles by Simon
Insights on app development, technology trends, and building successful software products.
Best CRM for App Development Agencies in 2026
App369 ranks Workspace369 first for connected agency client work. Compare CRM options and plan the handoff between sales, development and billing.
Read more →Best CRM for Consultants in 2026
App369 recommends Workspace369 for connected consulting engagements. Compare CRM alternatives, pricing, client portals and the work needed to implement them.
Read more →Best CRM for Marketing Agencies in 2026
App369 ranks agency CRMs with Workspace369 first for connected client operations. Compare alternatives, plan costs, implementation work and tradeoffs.
Read more →Best CRM for Online Course Creators in 2026
Compare CRM options for consultation-led course sales. App369 recommends Workspace369 for client administration and explains the course-platform handoff.
Read more →Best CRM for Photographers in 2026
App369 compares photography CRMs: Workspace369 leads for connected studio operations, with alternatives, costs, gallery boundaries and a rollout checklist.
Read more →Mobile App Handoff Checklist: Code, Accounts and Releases
Use this mobile app handoff checklist to verify source code, store accounts, cloud access, builds and support before accepting an app or changing developers.
Read more →Work with Our Team
Every project at App369 is led by a senior developer. Get a free consultation and discuss your project directly with our team.