Shared SDK architecture
Migrating TypeScript API clients and core application logic into a shared Rust SDK to reduce duplication and centralize state management.
Bojan Kovachki
Senior Full-Stack Software Engineer
React · TypeScript · Electron · Rust
Freiburg, Germany
I develop React and TypeScript interfaces, Electron desktop applications and a shared Rust SDK. Since 2020, I have worked at realworld one on enterprise VR software. I develop features from design and implementation through testing and ongoing improvement.
Selected impact
Application reliability
Improved authentication, application startup and desktop updates through root-cause analysis and robust error handling.
React analytics interfaces
Built React analytics for company and user usage, session history, ratings, large tables and CSV exports.
Experience
realworld one
Senior Full-Stack Software Engineer
Long-term product development across an Electron desktop launcher, Android/VR application, shared Rust SDK and React administration and analytics portal.
Responsibilities and technologies
- Joined as an AI Software Engineer; subsequently moved into full-stack product engineering and the current senior role.
- Migrating TypeScript API clients and core application logic into a shared Rust SDK to reduce duplication, centralize state management and keep desktop and Android behavior consistent. The desktop download migration is one part of this ongoing work.
- Hardened authentication and session recovery after network interruptions, token expiry, service resume and competing login/logout operations.
- Improved desktop and Android application stability through root-cause analysis, asynchronous programming and robust error handling. Strengthened startup and update workflows with regression tests.
- Built data-heavy analytics and improved file synchronization, uploads, conversion and restart-safe UI state.
- Contributed to multiplayer sessions, notifications, community discovery and launch flows, with targeted unit and integration tests.
voice INTER connect
Student Researcher / Master’s Thesis
Developed a local speech-based question-answering assistant for industrial environments.
Responsibilities and technologies
- Combined speech recognition, NLP, backend services, real-time messaging and a web interface.
- Built and evaluated the prototype and presented it at SPS 2019 and embedded world 2020.
3dvisionlabs
Student AI Researcher - Computer Vision
Trained object-detection models and evaluated inference performance across hardware targets.
Responsibilities and technologies
- Trained and evaluated custom object-detection models.
- Benchmarked YOLOv3/CNN inference on Intel NCS/NCS2, CPU and GPU targets.
Technische Universität Chemnitz
Student Assistant - Artificial Intelligence
Supported applied AI research and technical training for industrial use cases.
Responsibilities and technologies
- Researched AI and Industry 4.0 developments.
- Prepared technical training and publication material for industrial AI applications.
WildBytes DOO
Software Engineer
Developed web-scraping software, web applications and mobile applications.
Responsibilities and technologies
- Built web-scraping software and web/mobile applications using Node.js, AngularJS, MongoDB and Ionic.
Frontwisegroup
Software Engineer & IT Consultant
Built web and mobile applications for Dutch clients.
Responsibilities and technologies
- Developed applications with AngularJS and Ionic.
- Taught recruitment staff how frontend and backend software development roles work.
Iborn.net
Software Engineer
Built and maintained health-insurance portals and mobile applications for the Danish market.
Responsibilities and technologies
- Worked across web portals, data access and mobile applications using the .NET stack, SQL, AngularJS and Ionic.
Selected engineering work
Selected work at realworld one.
Consolidating API clients and application logic in Rust
An ongoing migration from TypeScript to a shared SDK, with clearer ownership of application state and lifecycles.
- Problem
- API clients and application logic are split between TypeScript and the Rust SDK. Overlapping ownership can create duplicated logic and conflicting state transitions.
- Responsibility
- Migrating TypeScript API clients and core application logic into the shared Rust SDK and integrating it with the desktop application. Downloads are one part of the broader effort.
- Engineering approach
- Move responsibilities into the SDK incrementally and connect them to Electron and React through explicit interfaces. For launch lifecycles, the target design gives the SDK ownership of launch state while Electron starts the native process through a callback.
- Outcome
- Implemented desktop download integration with the shared engine, including queue control, persistence and recovery behavior. The broader client migration is ongoing, including consolidation of launch and session lifecycle management.
Technologies
Authentication and session recovery
Coordinating state after network loss, token expiry and application resume.
- Problem
- Network interruptions, expired tokens and overlapping login/logout operations could leave SDK and application state out of sync.
- Responsibility
- Hardened recovery across the Rust SDK, Android/WebView application and desktop client.
- Engineering approach
- Coordinated asynchronous authentication state, guarded against stale work and made recovery transitions explicit across platform boundaries. Added targeted regression coverage.
- Outcome
- Improved session recovery and consistency between SDK authentication state and the application UI.
Technologies
Android startup and desktop updates
Debugging startup and update behavior across native and desktop applications.
- Problem
- Blocking SDK initialization caused intermittent Quest 3S startup ANRs. Separately, the desktop updater could treat a transport failure as a valid release-check result.
- Responsibility
- Investigated application bugs, identified root causes and implemented fixes across the affected layers.
- Engineering approach
- Moved SDK initialization off the Android UI thread. Added strict 2xx response validation, explicit failure states, bounded retries and richer update diagnostics.
- Outcome
- Removed blocking initialization from the startup path and distinguished failed update checks from valid release results.
Technologies
User Access Management analytics
Company and user analytics with large datasets and responsive interfaces.
- Problem
- Administration workflows needed usable views of usage, sessions, seats, countries and feedback across company and user datasets.
- Responsibility
- Developed React and TypeScript analytics interfaces and their data flows.
- Engineering approach
- Implemented charts, large tables, filtering, session/seat history, ratings, CSV exports and mobile layouts. Optimized React Query fetching and table behavior.
- Outcome
- Delivered company- and user-level analytics with exportable data and responsive access to detailed usage records.
Technologies
Core expertise
Frontend development
React, TypeScript, JavaScript, HTML/CSS, Chakra UI, React Query, Recoil, responsive interfaces, data visualization.
Desktop & native integration
Electron, Node.js, Windows applications, Android, WebView, JNI, VR launcher workflows.
SDKs & APIs
Rust, WASM/FFI, REST, gRPC, OAuth/OIDC, Auth0, asynchronous and concurrent workflows.
Software engineering
Software design, application debugging, performance, unit/integration testing, code review, Azure DevOps, Git.
AI-assisted development
I use Claude Code, GitHub Copilot and OpenAI Codex for code exploration, implementation, debugging, testing and documentation. Generated code still needs review, tests and validation against actual application behavior.
Projects
Recovery Probe
A recovery-testing tool for web and Electron desktop applications. It injects controlled failures into data reads and checks whether content survives or returns during loading and refresh.
- Supports HTTP and IPC fault scenarios, with repeated experiments and healthy controls.
- Produces local HTML and JSON evidence for developers and AI coding agents to reproduce failures and verify fixes through before-and-after checks.
- Validated with browser and Electron integration tests. Reports suspected defects for review; it does not automatically fix application code.
GasMap
A map-based web application showing nearby gas stations, opening hours, fuel prices and proximity information.
Education / research
M.Sc. Web Engineering
Technische Universität Chemnitz, Germany
Web and software engineering, distributed systems and AI/ML. Master’s thesis in natural language processing and speech recognition.
B.Sc. Computer Science and Engineering
Ss. Cyril and Methodius University, Skopje
Faculty of Computer Science and Engineering.
Publication
Increasing Industrial Productivity by Employing a Smart Speech-Based Question Answering Assistant
Research on a speech-based question-answering assistant for industrial environments, presented at SPS 2019 and embedded world 2020.
Languages
- English
- C2
- German
- B2
- Macedonian
- Native
- Serbian
- Highly proficient
Contact
Based in Freiburg im Breisgau. For engineering opportunities or questions about my work, please get in touch by email or LinkedIn.
bojan.kovachki@gmail.com