Danijel – Flutter, Dart, .NET

A health and fitness platform that enables clients to track their day to day fitness and readiness data, as well as tracking their nutrition and dieting habits. It is integrated with a proprietary fitness tracker which tracks heart rate, sleep, steps and various other metrics.

• Led a team of 8 mobile engineers as a Tech Lead;
• Decided on critical aspects of the system;
• Maintained and upgraded existing app with scalability, stability and features;
• Rewrote the entire application from scratch with best practices, scalability and stability in mind;
• Integrated Flutter based app with custom written native SDK that follows firmware documentation for the proprietary fitness tracker;
• Worked with BLE intensive features (live activity tracking, data syncing, data parsing, etc).

The company began the movement for decentralized 24/7 care based on a need for a comprehensive care delivery system for patients with serious or complex illnesses. The platform provides all the necessary elements to deliver advanced medical care in decentralized settings safely.

• Implemented various mission-critical features;
• Maintained and improved the mobile stack consisting of 3 applications;
• Implemented and suggested various proofs-of-concept;
• Wrote unit tests, integration tests, goldens;
• Implemented native BLE plugins.

A product to provide users with training videos and content, access to purchasing equipment, and social interaction. The premium mode of the app-enabled subscribers that pay through in-app-purchases APIs widens their features by enabling them to contact the trainers and access the live streaming sessions built with Zoom SDK to let them participate and interact with the attendees.

• Led a project from discovery to the handoff phase;
• Worked closely with clients and managers to discuss the features;
• Implemented video streaming;
• Implemented in-app-payments and subscriptions;
• Implemented Zoom SDK to enable joining the streaming sessions and rooms.

An internal social network that works like your mobile intranet and a company’s employee engagement app. It transforms internal organizational communication and boosts the company culture, with up to 78% more motivated and engaged employees.

• Led a team of mobile developers;
• Built the entire app ground up;
• Transformed an internal project into a brand-new company;
• Worked closely with managers and analysts in planning new features;
• Integrated the app with the Identity server to create a multi-tenant platform.

An interactive platform for German driving schools and their attendants. It prepares them for their driving tests by providing them with lessons, videos, and test simulations they can take to prepare them for real-world exams.

• Built the app from the discovery phase to the initial 1.0 version handoff to the client;
• Mentored developers simultaneously;
• Implemented Stripe payment gateway;
• Built an MVP web application with Flutter.

The white label app was made for the local cities to enable them to share the local news for citizens and to let users report issues with the city infrastructure by tagging the location and attaching photos or descriptions of the problems they run into.

• Сreated the entire mobile app;
• Added the offline functionalities with SQFlite;
• Assisted the back-end team by implementing features and database development;
• Implemented Firebase Cloud Messaging features.

University app made for reading the latest news and subscribing to the latest notifications. The student section allows the students to log into their private dashboard to view all of their curriculum and grades, as well as schedule calendar notifications for future exams. The staff section is restricted to professors and assistants to view their schedules and duties regarding the curriculum.

• Created the app from scratch on a 3-month deadline;
• Acted as a single developer in the mobile team;
• Implemented FCM notifications, Crashlytics;
• Integrated with the existing APIs to sync the application with the cloud systems of the university;
• Synced the application with the device's Calendar.