radiokot

My current job. I work on Concordium open-source Android wallets and SDKs, continuing what was started at Tacans Labs. My main focus is CryptoX Concordium wallet – together with other team members we implement UX optimizations, introduce new features, refresh the design. So far, the most tough challenge was to introduce support for multiple wallets to the app, which was designed and built to be used with a single one, keeping backward compatibility – it was completed successfully.

I worked on client apps for platforms built on various modern blockchains. The work involved improving existing applications, keeping backward compatibility: In CryptoX Concordium wallet, I’ve completed 3 comprehensive code migrations, implemented the updated design, new connectivity, funds and cryptographic key management features. I also conducted research and further development of PoCs for new projects, such as NFC communication between Android and iPhone. I often worked in close collaboration with designers and developers from other departments and companies.

Because of my research and feature planning skills and technical background, I was suggested to participate in business analysis, which was a new direction in the company back then. I took the opportunity as I wanted to try something new apart from the programming. I was responsible for gathering the requirements, formalizing them, comparing them to the existing features of TokenD, making preliminary estimates, writing a specification with user stories and diagrams. Furthermore, I also frequently consulted with domain experts, developers and service providers to get the most profound understanding of the subject. Once the specification was ready, I worked with our designers to create a UX prototype for the system. During the development, I consulted developers, testers and managers on the requirements and helped with the iteration planning.

My experience with TokenD and overall understanding of software development made it possible for me to lead small teams working on TokenD-based projects. I was responsible for onboarding of new developers, helping managers with the iteration planning, filling tasks with important technical details, coordinating communication between frontend and backend developers, consulting developers on TokenD nuances.

I became a lead Android developer as I had the biggest experience with TokenD and understanding of it, and the company plan was to develop further projects on this new framework. I was responsible for splitting the work between other developers, helping them with their issues, explaining TokenD to them, code review, interviewing candidates and releasing apps to Google Play. I also kept working on the projects as a developer.

Mainly worked on Bitxfy Bitcoin wallet: fixed bugs and added new features, most importantly RBF (BIP 125) and SegWit (BIP 141). Learned Kotlin and started working on pre-TokenD projects related to crowdfunding.