- Developing new features (e.g., creation of a payment form, a user profile, document attachment properties, particular TDD developing)- Fixing bugs (e.g., payment form behaviour bugs)- Code review (other devs mentoring and support in code review process)- Code refactoring (classes optimisation)- Business logic developing- Active participation in the discussion of technical issues- Close interaction with the testers, designer, project manager, business-analyst and other developers- Effective organisation of ideas for logical presentation and acceptance.- Leading (APK builds, cherry-picking tasks, merging changes of code, useful discussion of a retrospective)- Decomposition of epic tasks- Delivered first-stage MVP to client- Increased speed of main page loading. Decreased count of requests to server- Designed optimal git-flow depending on developing stage- Completing few epics from business rules to demo for client