Tom Kraina

My responsibility was to design, develop, and successfully release the first iOS app for GoOut. GoOut is a culture guide, ticketing system, and social network. I was a key part of the agile development process, involved in estimating, planning, and design. My role included researching and designing new features, integration analysis, API design, integration with Payment Service Providers (PayU, Paymill), profiling and fine-tuning app performance, and finally maintenance. Last, as one of the most senior engineers on the team, was mentoring other developers, helping them to build better software, occasionally doing code review and providing feedback.

Mailcloud is a cloud storage, email client, and chat, all in one app. As my goal was to transform an early prototype developed by an in-house team into a full, fast, and reliable application. I was a key part of the agile development process, involved in estimating, planning, and design. My role included researching and designing new features like chat, integration analysis with existing systems, implementation, and profiling performance.

Full-stack mobile and backend application developer, working both onsite and remotely. Responsible for iOS app development from initial client meetings, ideation, and prototyping through requirement specifiction, system integration to the App Store release. Part of my work also includes implementation of backend for services like mRetail and mPoint providing payment processing and server support for mobile clients. Working on apps used by 100 000s of monthly active users. CellPoint Mobile provides commerce orchestration infrastructure for clients like Emirates, Danish Railways, PizzaHut and eTakeaway.