hakanozer/yazilim_uzmanligi_21_Aralilk_2024
Dec 2024 – Jan 2026
14 Months active
Languages Used
C#GitattributesXMLSQLJSONCSSHTMLJavaScript
Technical Skills
.NETBasic C# SyntaxBasic OperationsC#Console ApplicationData Types
Hakan ÖZER
PROFILE
Hakan Özer
Hakan Ozer developed and maintained the hakanozer/yazilim_uzmanligi_21_Aralilk_2024 repository over 14 months, delivering a robust suite of backend and full stack features. He architected modular systems for user authentication, product management, and appointment scheduling, employing C#, ASP.NET Core, Node.js, and Angular. His technical approach emphasized layered architecture, domain-driven design, and secure API development with JWT, role-based access, and encryption. Hakan integrated MongoDB and SQL for data persistence, implemented automated testing, and maintained comprehensive documentation. His work enabled scalable onboarding, improved security, and streamlined developer workflows, demonstrating depth in both backend engineering and cross-stack integration.
Overall Statistics
Feature vs Bugs
92%Features
Repository Contributions
279Total
Bugs
9
Commits
279
Features
99
Lines of code
64,030
Activity Months14
Your Network
10 peopleShared Repositories
10
Work History
January 2026
1 Commits • 1 Features
Jan 1, 2026January 2026 (2026-01) | Repository: hakanozer/yazilim_uzmanligi_21_Aralilk_2024. Focused on strengthening development environment security and reliability. Key development: localhost-only URL restriction in launchSettings.json. No major bugs fixed this month; improvements are predominantly in security posture, configuration management, and developer workflow. This lays groundwork for future environment isolation and automated checks, enabling safer testing and faster iteration.
1 Commits • 1 Features
Jan 1, 2026January 2026 (2026-01) | Repository: hakanozer/yazilim_uzmanligi_21_Aralilk_2024. Focused on strengthening development environment security and reliability. Key development: localhost-only URL restriction in launchSettings.json. No major bugs fixed this month; improvements are predominantly in security posture, configuration management, and developer workflow. This lays groundwork for future environment isolation and automated checks, enabling safer testing and faster iteration.
January 2026
December 2025
1 Commits • 1 Features
Dec 1, 2025December 2025 performance summary for hakanozer/yazilim_uzmanligi_21_Aralilk_2024: Completed foundational project scaffolding with a clean multi-layer architecture (Domain, Application, Infrastructure, API) and delivered a Weather Forecast API skeleton along with a user registration DTO. These developments establish modularity, clear responsibilities, and reusable components to accelerate future feature delivery and onboarding.
December 2025
1 Commits • 1 Features
Dec 1, 2025December 2025 performance summary for hakanozer/yazilim_uzmanligi_21_Aralilk_2024: Completed foundational project scaffolding with a clean multi-layer architecture (Domain, Application, Infrastructure, API) and delivered a Weather Forecast API skeleton along with a user registration DTO. These developments establish modularity, clear responsibilities, and reusable components to accelerate future feature delivery and onboarding.
November 2025
34 Commits • 10 Features
Nov 1, 2025November 2025 performance summary for hakanozer/yazilim_uzmanligi_21_Aralilk_2024: Delivered key end-to-end features, security improvements, and project scaffolding that drive scheduling reliability, secure access, and faster time-to-market. Highlights include end-to-end Appointment Management API with domain model, retrieval, status changes, validation, and time handling; JWT-based user identity and authentication flow; MVC/REST project scaffolding and REST project completion with artifacts; security hardening (XSS) and robust error page handling with logging; dashboard UI enhancements and new visual assets; configuration/bootstrap improvements; and Graduation Project documentation. This work reduces manual integration effort, improves system reliability, and strengthens security posture while enabling rapid feature delivery.
34 Commits • 10 Features
Nov 1, 2025November 2025 performance summary for hakanozer/yazilim_uzmanligi_21_Aralilk_2024: Delivered key end-to-end features, security improvements, and project scaffolding that drive scheduling reliability, secure access, and faster time-to-market. Highlights include end-to-end Appointment Management API with domain model, retrieval, status changes, validation, and time handling; JWT-based user identity and authentication flow; MVC/REST project scaffolding and REST project completion with artifacts; security hardening (XSS) and robust error page handling with logging; dashboard UI enhancements and new visual assets; configuration/bootstrap improvements; and Graduation Project documentation. This work reduces manual integration effort, improves system reliability, and strengthens security posture while enabling rapid feature delivery.
November 2025
October 2025
30 Commits • 12 Features
Oct 1, 2025Monthly Summary - 2025-10 for hakanozer/yazilim_uzmanligi_21_Aralilk_2024. The month focused on delivering a scalable API foundation with domain-driven modeling, robust security, and developer-friendly documentation, enabling faster feature delivery and easier client integrations. Key features delivered include the News and Category Domain Modeling with DTOs and a mapper layer, REST API core bootstrapping with routing, and database configuration updates. Swagger-based API documentation was integrated, complemented by updated Postman collections and documentation artifacts (NodeJS TeamTask PDF). Additional feature work covered Product API updates aligned with new API changes and comment system enhancements for improved user interactions. Major bugs fixed include injection-related vulnerability remediation and targeted general maintenance/refactor efforts to improve code quality and stability. Overall impact: Established a solid, scalable API skeleton and security foundation, improved API discoverability and client integration readiness, reduced risk with a global error handling mechanism, and delivered comprehensive documentation artifacts to accelerate external and internal adoption. The work positions the project for rapid iteration on business features while maintaining a strong focus on security and maintainability. Technologies/skills demonstrated: Node.js/TypeScript REST API, domain modeling (News/Category), DTOs and mapping, JWT-based authentication, Swagger integration, Postman automation, database configuration, error handling, and documentation craftsmanship.
October 2025
30 Commits • 12 Features
Oct 1, 2025Monthly Summary - 2025-10 for hakanozer/yazilim_uzmanligi_21_Aralilk_2024. The month focused on delivering a scalable API foundation with domain-driven modeling, robust security, and developer-friendly documentation, enabling faster feature delivery and easier client integrations. Key features delivered include the News and Category Domain Modeling with DTOs and a mapper layer, REST API core bootstrapping with routing, and database configuration updates. Swagger-based API documentation was integrated, complemented by updated Postman collections and documentation artifacts (NodeJS TeamTask PDF). Additional feature work covered Product API updates aligned with new API changes and comment system enhancements for improved user interactions. Major bugs fixed include injection-related vulnerability remediation and targeted general maintenance/refactor efforts to improve code quality and stability. Overall impact: Established a solid, scalable API skeleton and security foundation, improved API discoverability and client integration readiness, reduced risk with a global error handling mechanism, and delivered comprehensive documentation artifacts to accelerate external and internal adoption. The work positions the project for rapid iteration on business features while maintaining a strong focus on security and maintainability. Technologies/skills demonstrated: Node.js/TypeScript REST API, domain modeling (News/Category), DTOs and mapping, JWT-based authentication, Swagger integration, Postman automation, database configuration, error handling, and documentation craftsmanship.
September 2025
38 Commits • 15 Features
Sep 1, 2025September 2025 (2025-09) monthly summary for hakanozer/yazilim_uzmanligi_21_Aralilk_2024 focused on delivering a secure onboarding flow, scalable API architecture, and thoughtful UI/UX improvements. The work emphasizes business value through strengthened security, improved developer productivity, and faster feature delivery while laying a solid foundation for future iterations. Key features delivered and their business impact: - End-to-end User Registration and Authentication System: DB persistence, CryptoJS-based encryption, and JWT-based authorization with role-based access control, enabling secure onboarding and access management. - REST API scaffolding and MVC completion: API endpoints wired with authentication/authorization, JSON handling, API tests/collection, and configuration to accelerate backend development and QA. - Session Management and global UI reliability: Enhanced session control and global filter/logout improvements to improve security, usability, and consistency across the app. - Frontend UI enhancements: New UI asset (odev_2.png), improved left navigation, dashboard layout, and menu active state for a more intuitive user experience and faster task completion. - Notes Management, Node addition, and localization assets: Implemented notes lifecycle (list/update/create), added system Node, and Turkish Ödev assets with Assignment 5 scaffolding to support educational workflows and localization readiness.
38 Commits • 15 Features
Sep 1, 2025September 2025 (2025-09) monthly summary for hakanozer/yazilim_uzmanligi_21_Aralilk_2024 focused on delivering a secure onboarding flow, scalable API architecture, and thoughtful UI/UX improvements. The work emphasizes business value through strengthened security, improved developer productivity, and faster feature delivery while laying a solid foundation for future iterations. Key features delivered and their business impact: - End-to-end User Registration and Authentication System: DB persistence, CryptoJS-based encryption, and JWT-based authorization with role-based access control, enabling secure onboarding and access management. - REST API scaffolding and MVC completion: API endpoints wired with authentication/authorization, JSON handling, API tests/collection, and configuration to accelerate backend development and QA. - Session Management and global UI reliability: Enhanced session control and global filter/logout improvements to improve security, usability, and consistency across the app. - Frontend UI enhancements: New UI asset (odev_2.png), improved left navigation, dashboard layout, and menu active state for a more intuitive user experience and faster task completion. - Notes Management, Node addition, and localization assets: Implemented notes lifecycle (list/update/create), added system Node, and Turkish Ödev assets with Assignment 5 scaffolding to support educational workflows and localization readiness.
September 2025
August 2025
38 Commits • 16 Features
Aug 1, 2025August 2025 performance summary for hakanozer/yazilim_uzmanligi_21_Aralilk_2024: Implemented core product content enhancements, strengthened security and session UX, and laid a scalable foundation for ongoing development. The month delivered meaningful business value through improved product discovery, secure access flows, and enhanced developer productivity, supported by robust documentation and development tooling.
August 2025
38 Commits • 16 Features
Aug 1, 2025August 2025 performance summary for hakanozer/yazilim_uzmanligi_21_Aralilk_2024: Implemented core product content enhancements, strengthened security and session UX, and laid a scalable foundation for ongoing development. The month delivered meaningful business value through improved product discovery, secure access flows, and enhanced developer productivity, supported by robust documentation and development tooling.
July 2025
24 Commits • 9 Features
Jul 1, 2025July 2025: Delivered end-to-end authentication and product-domain capabilities for hakanozer/yazilim_uzmanligi_21_Aralilk_2024. Implemented robust login and registration flows with API integration, established a central Data Models module, and delivered a ready-to-use Product Catalog with detail views and routing enhancements. Improvements to UI components, guards, and data binding reduced onboarding friction and set the foundation for scalable user and product data management, aligning technical delivery with business value.
24 Commits • 9 Features
Jul 1, 2025July 2025: Delivered end-to-end authentication and product-domain capabilities for hakanozer/yazilim_uzmanligi_21_Aralilk_2024. Implemented robust login and registration flows with API integration, established a central Data Models module, and delivered a ready-to-use Product Catalog with detail views and routing enhancements. Improvements to UI components, guards, and data binding reduced onboarding friction and set the foundation for scalable user and product data management, aligning technical delivery with business value.
July 2025
June 2025
16 Commits • 8 Features
Jun 1, 2025June 2025 monthly summary for hakanozer/yazilim_uzmanligi_21_Aralilk_2024. Highlights include the delivery of a unified User Authentication System across HTML/JS and Angular projects with scaffolding, form handling, client-side validation, and API integration; a Comment Viewer with Modal for external API data; a Product Data Fetch and Display (Ajax) feature; Days_6, Days_8, and Days_9 frontend enhancements; and an Object Data Table plus Front-end Assets for a design assignment. No major bugs fixed this month; stability improvements were achieved via the authentication consolidation and refactors. Representative commits include: 2c49897f3b790843271387582ffa3fc4d36fd7a0, 90a06e4ada712a4eda2e0aa347eddefab022a354, 4419b2fc240c161b0d7eb8ab23fc75600d37b18f, 032923f4c00c6ccff7eeceb523d3e0a7192356c0, 92724c9dd1200ccce0fdb275ee14cd7c5f94b170, db4ad1b968d3a6c5cf6d1bbcab3bf606302e34f9, bfafd0eef84e757c0fec3a7a7ac1d658cf19a411, 5e3c0322366a729c8d639e0e4241361098753964, 747f3f5ad84f6512a991170ab8b4947c912c1ff9, acecfb90ebaa577a987ce93ebfa541dd040c2efd, 7731df8d4da963a1c1787783e606515282a92896, 854e73472b0a36a98946f125a1191690b27bceff, 40691e4a2a8680b483063fbae774f5c30a28168b, bcd1f7d1493804f68bf1d3577e0bfcc36d5842e9.
June 2025
16 Commits • 8 Features
Jun 1, 2025June 2025 monthly summary for hakanozer/yazilim_uzmanligi_21_Aralilk_2024. Highlights include the delivery of a unified User Authentication System across HTML/JS and Angular projects with scaffolding, form handling, client-side validation, and API integration; a Comment Viewer with Modal for external API data; a Product Data Fetch and Display (Ajax) feature; Days_6, Days_8, and Days_9 frontend enhancements; and an Object Data Table plus Front-end Assets for a design assignment. No major bugs fixed this month; stability improvements were achieved via the authentication consolidation and refactors. Representative commits include: 2c49897f3b790843271387582ffa3fc4d36fd7a0, 90a06e4ada712a4eda2e0aa347eddefab022a354, 4419b2fc240c161b0d7eb8ab23fc75600d37b18f, 032923f4c00c6ccff7eeceb523d3e0a7192356c0, 92724c9dd1200ccce0fdb275ee14cd7c5f94b170, db4ad1b968d3a6c5cf6d1bbcab3bf606302e34f9, bfafd0eef84e757c0fec3a7a7ac1d658cf19a411, 5e3c0322366a729c8d639e0e4241361098753964, 747f3f5ad84f6512a991170ab8b4947c912c1ff9, acecfb90ebaa577a987ce93ebfa541dd040c2efd, 7731df8d4da963a1c1787783e606515282a92896, 854e73472b0a36a98946f125a1191690b27bceff, 40691e4a2a8680b483063fbae774f5c30a28168b, bcd1f7d1493804f68bf1d3577e0bfcc36d5842e9.
May 2025
22 Commits • 6 Features
May 1, 2025May 2025 performance summary for hakanozer/yazilim_uzmanligi_21_Aralilk_2024. The focus this month was delivering solid backend data capabilities, establishing a lightweight frontend scaffold, and laying the groundwork for usage analytics through phased day-tracking. Key work included a MongoDB-backed backend for the product catalog with user filtering and the necessary scaffold changes, plus a set of static frontend assets to enable immediate UI progress. In addition, day-tracking data points were introduced (Days_2, Days_3, Days_20, Days_21) and progressed through Phases 3–5 to provide phased analytics capabilities. The work was completed with clear, incremental commits to support traceability and smooth deployment.
22 Commits • 6 Features
May 1, 2025May 2025 performance summary for hakanozer/yazilim_uzmanligi_21_Aralilk_2024. The focus this month was delivering solid backend data capabilities, establishing a lightweight frontend scaffold, and laying the groundwork for usage analytics through phased day-tracking. Key work included a MongoDB-backed backend for the product catalog with user filtering and the necessary scaffold changes, plus a set of static frontend assets to enable immediate UI progress. In addition, day-tracking data points were introduced (Days_2, Days_3, Days_20, Days_21) and progressed through Phases 3–5 to provide phased analytics capabilities. The work was completed with clear, incremental commits to support traceability and smooth deployment.
May 2025
April 2025
13 Commits • 3 Features
Apr 1, 2025April 2025 performance summary for hakanozer/yazilim_uzmanligi_21_Aralilk_2024: Delivered key product capabilities and foundational data layer improvements for the Contact Management System, enabling scalable contact management, advanced retrieval (top viewed, pagination, city-specific data), and JSON/MongoDB driven data workflows; produced comprehensive documentation and reference materials to accelerate onboarding and maintenance; set the stage for data-driven insights and improved customer engagement.
April 2025
13 Commits • 3 Features
Apr 1, 2025April 2025 performance summary for hakanozer/yazilim_uzmanligi_21_Aralilk_2024: Delivered key product capabilities and foundational data layer improvements for the Contact Management System, enabling scalable contact management, advanced retrieval (top viewed, pagination, city-specific data), and JSON/MongoDB driven data workflows; produced comprehensive documentation and reference materials to accelerate onboarding and maintenance; set the stage for data-driven insights and improved customer engagement.
March 2025
23 Commits • 6 Features
Mar 1, 2025In March 2025, delivered substantial SQL provisioning, configuration, and documentation enhancements for the hakanozer/yazilim_uzmanligi_21_Aralilk_2024 repository. Focused on enabling faster DB provisioning, improved configurability, and clearer guidance for future work. Addressed stability through targeted reverts and data/structure updates.
23 Commits • 6 Features
Mar 1, 2025In March 2025, delivered substantial SQL provisioning, configuration, and documentation enhancements for the hakanozer/yazilim_uzmanligi_21_Aralilk_2024 repository. Focused on enabling faster DB provisioning, improved configurability, and clearer guidance for future work. Addressed stability through targeted reverts and data/structure updates.
March 2025
February 2025
17 Commits • 8 Features
Feb 1, 2025February 2025 monthly summary for hakanozer/yazilim_uzmanligi_21_Aralilk_2024: Delivered a cohesive multi-day feature set around user management and authentication, built on Days_12–Days_18 workstreams. Highlights include Day_12: User Authentication and Inheritance Demo with login and polymorphic calls; Day_13: base Person and derived User/Customer/Admin with role-specific login and Customer basket; Day_14: User Management Framework with core interface/service, registration/login flow and reporting placeholders; Day_15: Abstract Entities and Product Modeling with Person/Bmw/Mercedes/Togg and Product representation; Day_16: Collections Demo using ArrayList/List with User and Product models; Day_17: Advanced Collections and Models adding LinkedList/Queue/Stack/HashSet, enhanced Product ToString, new User model; Day_18: Actions, Calls, and User Profiles with a Days_18 project featuring actions, calls, profiles, and Sum demo; plus User Preferences Enhancements across multiple commits to improve UX. Major bug fix: Documentation and Resource File Management with PDF path rename and addition of Ödev-6.pdf. Overall impact: established a scalable, modular user-management stack, enhanced data modeling and collections usage, and improved documentation and UX, enabling faster onboarding and future feature delivery. Technologies/skills demonstrated: object-oriented design (inheritance, polymorphism, interfaces), service-oriented architecture patterns, login/registration flows, role-based access, advanced collections, data modeling for products/users, and lightweight UI configuration updates.
February 2025
17 Commits • 8 Features
Feb 1, 2025February 2025 monthly summary for hakanozer/yazilim_uzmanligi_21_Aralilk_2024: Delivered a cohesive multi-day feature set around user management and authentication, built on Days_12–Days_18 workstreams. Highlights include Day_12: User Authentication and Inheritance Demo with login and polymorphic calls; Day_13: base Person and derived User/Customer/Admin with role-specific login and Customer basket; Day_14: User Management Framework with core interface/service, registration/login flow and reporting placeholders; Day_15: Abstract Entities and Product Modeling with Person/Bmw/Mercedes/Togg and Product representation; Day_16: Collections Demo using ArrayList/List with User and Product models; Day_17: Advanced Collections and Models adding LinkedList/Queue/Stack/HashSet, enhanced Product ToString, new User model; Day_18: Actions, Calls, and User Profiles with a Days_18 project featuring actions, calls, profiles, and Sum demo; plus User Preferences Enhancements across multiple commits to improve UX. Major bug fix: Documentation and Resource File Management with PDF path rename and addition of Ödev-6.pdf. Overall impact: established a scalable, modular user-management stack, enhanced data modeling and collections usage, and improved documentation and UX, enabling faster onboarding and future feature delivery. Technologies/skills demonstrated: object-oriented design (inheritance, polymorphism, interfaces), service-oriented architecture patterns, login/registration flows, role-based access, advanced collections, data modeling for products/users, and lightweight UI configuration updates.
January 2025
16 Commits • 2 Features
Jan 1, 2025January 2025 performance summary focusing on feature delivery and configurability for hakanozer/yazilim_uzmanligi_21_Aralilk_2024. Key features delivered include a consolidated C# Learning Modules Series covering Days_1, Days_4–11 with scaffolding and practical examples (factorial calculation, loop constructs, basic class structures, data models, and a UI/demo). Also implemented Settings and Preferences Updates reflecting UI/config changes via XML-based UserPrefs.xml. Major accomplishments include completing end-to-end module scaffolding, delivering hands-on programming content, and aligning user preferences with new UI options. This month also emphasized maintainability, documentation through descriptive commits, and measurable progress toward learner onboarding and configuration flexibility.
16 Commits • 2 Features
Jan 1, 2025January 2025 performance summary focusing on feature delivery and configurability for hakanozer/yazilim_uzmanligi_21_Aralilk_2024. Key features delivered include a consolidated C# Learning Modules Series covering Days_1, Days_4–11 with scaffolding and practical examples (factorial calculation, loop constructs, basic class structures, data models, and a UI/demo). Also implemented Settings and Preferences Updates reflecting UI/config changes via XML-based UserPrefs.xml. Major accomplishments include completing end-to-end module scaffolding, delivering hands-on programming content, and aligning user preferences with new UI options. This month also emphasized maintainability, documentation through descriptive commits, and measurable progress toward learner onboarding and configuration flexibility.
January 2025
December 2024
6 Commits • 2 Features
Dec 1, 2024December 2024 — Performance summary for hakanozer/yazilim_uzmanligi_21_Aralilk_2024: Delivered foundational C# learning scaffolds and accompanying materials, enabling scalable onboarding and hands-on practice. Key features delivered: - Scaffolded three C# console projects (Days_1, Days_2, Days_3) with basic constructs, enabling hands-on learning of data types, user input, and control flow. - Added accompanying homework materials: Ödev-1.pdf and Ödev-2.pdf to support exercises. - Maintained clear commit history across six commits to scaffold and document work (Days_1, Days_2, Days_3; Ödev-1.pdf; Ödev-2.pdf). - Established repository structure and conventions to support scalable learning content. Major bugs fixed: - N/A for this period; focus was on scaffolding and documentation initialization. Overall impact and accomplishments: - Accelerates onboarding and ensures consistent practice with ready-to-run C# exercises and supporting materials. - Improves maintainability and scalability of course content and documentation. Technologies/skills demonstrated: - C#, console applications, basic programming constructs (data types, user input, control flow), documentation practices, and version control discipline. Business value: - Reduces setup time for new learners, standardizes learning materials, and provides a scalable base for future lesson expansion.
December 2024
6 Commits • 2 Features
Dec 1, 2024December 2024 — Performance summary for hakanozer/yazilim_uzmanligi_21_Aralilk_2024: Delivered foundational C# learning scaffolds and accompanying materials, enabling scalable onboarding and hands-on practice. Key features delivered: - Scaffolded three C# console projects (Days_1, Days_2, Days_3) with basic constructs, enabling hands-on learning of data types, user input, and control flow. - Added accompanying homework materials: Ödev-1.pdf and Ödev-2.pdf to support exercises. - Maintained clear commit history across six commits to scaffold and document work (Days_1, Days_2, Days_3; Ödev-1.pdf; Ödev-2.pdf). - Established repository structure and conventions to support scalable learning content. Major bugs fixed: - N/A for this period; focus was on scaffolding and documentation initialization. Overall impact and accomplishments: - Accelerates onboarding and ensures consistent practice with ready-to-run C# exercises and supporting materials. - Improves maintainability and scalability of course content and documentation. Technologies/skills demonstrated: - C#, console applications, basic programming constructs (data types, user input, control flow), documentation practices, and version control discipline. Business value: - Reduces setup time for new learners, standardizes learning materials, and provides a scalable base for future lesson expansion.
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Quality Metrics
Correctness81.8%
Maintainability81.8%
Architecture78.4%
Performance78.2%
AI Usage20.6%
Skills & Technologies
Programming Languages
BootstrapC#CSSGitattributesHTMLJSONJavaScriptMarkdownMongoDBPDF
Technical Skills
.NET.NET CoreAJAXAPI DesignAPI DevelopmentAPI DocumentationAPI IntegrationAPI SecurityAPI TestingAPI developmentASP.NET CoreAjaxAngularArraysAuthentication
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