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Nikola Mladenovic

PROFILE

Nikola Mladenovic

Nikola Mladenovic developed and maintained the 2425-4chif-syp/01-projekte-2025-4chif-syp-pepper-minigames repository, delivering end-to-end features for Pepper robot minigames, meal planning, and user authentication. He applied Kotlin and TypeScript to build modular Android and Angular components, integrating AI-driven face and speech recognition, robust API layers, and scalable UI flows. His work included CI/CD automation with Docker and GitHub Actions, enabling reliable deployments and streamlined documentation. By refactoring data models, enhancing navigation, and aligning frontend-backend interactions, Nikola ensured maintainable code and smooth user experiences. The depth of his contributions reflects strong architectural understanding and consistent delivery across complex, multi-modal systems.

Overall Statistics

Feature vs Bugs

58%Features

Repository Contributions

127Total
Bugs
30
Commits
127
Features
42
Lines of code
247,490
Activity Months11

Work History

February 2026

1 Commits • 1 Features

Feb 1, 2026

February 2026 monthly summary for 2425-4chif-syp/01-projekte-2025-4chif-syp-pepper-minigames. February focused on delivering robust CI/CD capabilities and deployment tooling to accelerate and stabilize releases. Implemented GitHub Actions workflows for building and deploying backend and frontend, introduced a new documentation structure for deployment processes and runbooks, and added scripts to manage Docker containers/images to streamline environment provisioning. A targeted bug fix addressed a backend photo URL issue, improving end-user content reliability. Overall, these efforts reduced manual deployment steps, shortened release cycles, and improved consistency across environments.

January 2026

1 Commits • 1 Features

Jan 1, 2026

January 2026: Focused on enhancing Pepper minigames through improvements to face-recognition interaction. Implemented a friendlier, more supportive spoken text during face recognition to align with the product’s persona and improve user engagement.

December 2025

15 Commits • 3 Features

Dec 1, 2025

December 2025 monthly summary for 2425-4chif-syp/01-projekte-2025-4chif-syp-pepper-minigames. Delivered three core features in December 2025 for the Pepper mini-games project: end-to-end Face Recognition and User Authentication; Human Awareness and Meal Interaction; and Personalized Meal Planning based on Found Person. Implemented security and reliability improvements and laid groundwork for scalable user-centric flows.

November 2025

28 Commits • 10 Features

Nov 1, 2025

During 2025-11, delivered a foundational meal-planning module within the Pepper Minigames project, establishing a scalable architecture, robust UI theming, and reliable data/network layers. The work enables iterative feature delivery, improved user experience, and maintainable code for future sprints.

October 2025

12 Commits • 2 Features

Oct 1, 2025

2025-10 Monthly Summary for 2425-4chif-syp/01-projekte-2025-4chif-syp-pepper-minigames: Focused delivery in the Mmg module with UX enhancements and data-model modernization, along with stabilizing fixes to support reliable image handling and API integration. Business impact centers on improved user flow, faster asset loading, and more robust data structures that enable scalable minigame features.

September 2025

5 Commits • 1 Features

Sep 1, 2025

September 2025 (2025-09) monthly summary for 2425-4chif-syp/01-projekte-2025-4chif-syp-pepper-minigames focused on automating documentation delivery via a slides pipeline. The main feature implemented this month is an automated documentation slides build and deployment pipeline that uses GitHub Actions to build AsciiDoc slides into HTML with a Dockerized Asciidoctor and publishes the results to GitHub Pages. The work also standardized workflows, added scripts to convert AsciiDoc to slides and HTML, integrated Reveal.js for slide rendering, and defined consistent deployment paths to ensure reliable, repeatable docs delivery.

June 2025

2 Commits • 1 Features

Jun 1, 2025

2025-06 Monthly Summary for 01-projekte-2025-4chif-syp-pepper-minigames: Delivered two high-impact updates that enhance user workflow, stability, and maintainability in the Pepper Minigames project. Key outcomes: - Implemented Step-by-step Navigation UI with a ViewModel refactor to manage navigation and animation states and updated UI with new interactive controls, enabling reliable forward/backward navigation across multi-step flows. - Introduced a loading state to disable the Load History action during data fetch, preventing duplicate requests and improving user experience during data loading. Commits: - a5f634a69fc84c0fcabb741c54f826e89ab10c64 — feat: Implementierung der Buttons #PEP-127 Done - c7fee2802032da968dfa80450d22cd171bf51b4e — fix: Geschichte laden Button disabled während Ladevorgang #PEP-126 Repository: - 2425-4chif-syp/01-projekte-2025-4chif-syp-pepper-minigames

May 2025

3 Commits • 2 Features

May 1, 2025

May 2025 monthly summary for repository 2425-4chif-syp/01-projekte-2025-4chif-syp-pepper-minigames. Focused on delivering a robust login experience and stabilizing the authentication flow while improving code quality. Key work targeted authentication reliability, seamless onboarding, and frontend-backend alignment to support scalable growth.

April 2025

25 Commits • 7 Features

Apr 1, 2025

April 2025 performance summary for Pepper MMG minigames (repo: 2425-4chif-syp/01-projekte-2025-4chif-syp-pepper-minigames). Delivered end-to-end Pepper MMG experiences, improved feedback loops, and solidified the project structure for scalable growth. Key outcomes include feature delivery, stability fixes, and a foundation for future enhancements that directly drive user engagement and operational efficiency.

March 2025

33 Commits • 13 Features

Mar 1, 2025

March 2025 monthly summary for repository 2425-4chif-syp/01-projekte-2025-4chif-syp-pepper-minigames. The month focused on delivering core Pepper robot capabilities, stabilizing the architecture, and advancing AI integration with speech and facial recognition. Highlights include a robust robot initialization and speech interface, a dedicated LoginScreen ViewModel, end-to-end API groundwork for speech and face recognition, and architectural/ networking improvements to enable reliable production readiness.

February 2025

2 Commits • 1 Features

Feb 1, 2025

February 2025: Delivered a scalable Pepper Angular app scaffold with server-side rendering, initial routing, and scaffolding for interactive features (MitMachGeschichten and Personen Eingabe); included deployment-ready assets (build configuration and styling). Fixed Angular naming and legacy compatibility issues to stabilize the frontend build pipeline. These efforts set the foundation for rapid feature delivery and improved performance.

Activity

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Quality Metrics

Correctness85.2%
Maintainability84.8%
Architecture82.2%
Performance80.2%
AI Usage22.6%

Skills & Technologies

Programming Languages

CSSDockerfileGradleGroovyHTMLJavaJavaScriptKotlinNginx configurationSCSS

Technical Skills

AI IntegrationAPI IntegrationAPI designAPI developmentAPI integrationAndroid DevelopmentAndroid developmentAngularAnimationAsset ManagementBackend DevelopmentBackend IntegrationBase64 Encoding/DecodingBuild ConfigurationCI/CD

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

2425-4chif-syp/01-projekte-2025-4chif-syp-pepper-minigames

Feb 2025 Feb 2026
11 Months active

Languages Used

CSSDockerfileHTMLJavaScriptNginx configurationSCSSTypeScriptGradle

Technical Skills

AngularCSSDockerExpress.jsFrontend DevelopmentHTML