bounswe/bounswe2025group4
May 2025 – Dec 2025
4 Months active
Languages Used
DockerfileJavaPropertiesYAMLXMLenvHTMLJavaScript
Technical Skills
API ConfigurationAPI DesignAPI DevelopmentAPI DocumentationAPI GatewayAPI Security
CotSezer
PROFILE
Cotsezer
Cem Otsezer developed a modular, security-focused backend for the bounswe/bounswe2025group4 repository, delivering end-to-end features such as user authentication, job posting, mentorship, and real-time chat. He applied a layered architecture using Java and Spring Boot, integrating JWT-based authentication, centralized exception handling, and environment-aware OTP flows. His work included RESTful API design, DTO modeling, and database configuration with JPA, as well as WebSocket-based notification and chat systems. By implementing robust error handling, Docker-based deployment, and comprehensive unit testing, Cem enabled scalable onboarding, improved developer productivity, and ensured reliable, maintainable workflows across multiple business domains within the project.
Overall Statistics
Feature vs Bugs
96%Features
Repository Contributions
166Total
Bugs
3
Commits
166
Features
68
Lines of code
9,985
Activity Months4
Your Network
10 peopleShared Repositories
10
Work History
December 2025
23 Commits • 7 Features
Dec 1, 2025December 2025 delivered significant profile personalization, notification reliability, and governance improvements, directly enhancing onboarding, user engagement, and operational efficiency. Key results include gender field integration across registration and profile DTOs, pronoun handling refactor to pronunset, mentorship enhancements, and a centralized notification framework with real-time WebSocket updates. A standalone UI validated backend notifications, while targeted fixes and test coverage improved quality and reduced noise (self-notification prevention, null-pointer protection). Security and access posture was strengthened by removing admin role from registration and by disabling 2FA/OTP in production.
23 Commits • 7 Features
Dec 1, 2025December 2025 delivered significant profile personalization, notification reliability, and governance improvements, directly enhancing onboarding, user engagement, and operational efficiency. Key results include gender field integration across registration and profile DTOs, pronoun handling refactor to pronunset, mentorship enhancements, and a centralized notification framework with real-time WebSocket updates. A standalone UI validated backend notifications, while targeted fixes and test coverage improved quality and reduced noise (self-notification prevention, null-pointer protection). Security and access posture was strengthened by removing admin role from registration and by disabling 2FA/OTP in production.
December 2025
November 2025
54 Commits • 17 Features
Nov 1, 2025Concise monthly summary for 2025-11 focused on business value and technical achievements across the bounswe/bounswe2025group4 repository.
November 2025
54 Commits • 17 Features
Nov 1, 2025Concise monthly summary for 2025-11 focused on business value and technical achievements across the bounswe/bounswe2025group4 repository.
October 2025
55 Commits • 22 Features
Oct 1, 2025Month: 2025-10 — Delivered a security-first, modular foundation for the bounswe/bounswe2025group4 project, enabling scalable feature delivery, robust error handling, and improved developer productivity. Implemented core module scaffolding for JWT/auth, profile, and job-application with a clean layered architecture (controller, dto, model, repository, service, security). Set up essential tooling and configuration (Git templates, Maven dependencies for security/jwt/mail/validation, application.yml/AppProperties, .env templates) and enabled API exploration with Swagger and CORS alignment. Established the user domain and persistence layer (User/Role models and repositories) and built a comprehensive authentication stack (UserDetails, JwtUtils, AuthService, EmailService) plus a full AuthController with registration, login, email verification, and password reset flows. Introduced OTP-based authentication for two-factor login, including OTP entities/DTOs/repositories and HTML email templates for OTP delivery. Implemented centralized exception handling (ApiError, ErrorCode, HandleException, GlobalExceptionHandler) with DelegatingAccessDeniedHandler and integrated it across profiling, authentication, job posting, and job application modules. Strengthened security with method-level access control (@PreAuthorize) across profile, jobpost, and auth domains, and refined JWT handling and error routing. Added validation constraints and indexes on User data, removed the Role entity to simplify the domain model, and addressed critical registration flow issues for unverified users. Business impact: higher security, better fault tolerance, clearer API semantics, and faster delivery of business features with a consistent developer experience.
55 Commits • 22 Features
Oct 1, 2025Month: 2025-10 — Delivered a security-first, modular foundation for the bounswe/bounswe2025group4 project, enabling scalable feature delivery, robust error handling, and improved developer productivity. Implemented core module scaffolding for JWT/auth, profile, and job-application with a clean layered architecture (controller, dto, model, repository, service, security). Set up essential tooling and configuration (Git templates, Maven dependencies for security/jwt/mail/validation, application.yml/AppProperties, .env templates) and enabled API exploration with Swagger and CORS alignment. Established the user domain and persistence layer (User/Role models and repositories) and built a comprehensive authentication stack (UserDetails, JwtUtils, AuthService, EmailService) plus a full AuthController with registration, login, email verification, and password reset flows. Introduced OTP-based authentication for two-factor login, including OTP entities/DTOs/repositories and HTML email templates for OTP delivery. Implemented centralized exception handling (ApiError, ErrorCode, HandleException, GlobalExceptionHandler) with DelegatingAccessDeniedHandler and integrated it across profiling, authentication, job posting, and job application modules. Strengthened security with method-level access control (@PreAuthorize) across profile, jobpost, and auth domains, and refined JWT handling and error routing. Added validation constraints and indexes on User data, removed the Role entity to simplify the domain model, and addressed critical registration flow issues for unverified users. Business impact: higher security, better fault tolerance, clearer API semantics, and faster delivery of business features with a consistent developer experience.
October 2025
May 2025
34 Commits • 22 Features
May 1, 2025May 2025 monthly summary for bounswe/bounswe2025group4: Delivered a secure, API-driven backend foundation and feature-complete user/job-post workflows. Key scaffolding and repo cleanup established a clean baseline with ethical-jobboard subfolder. Core app bootstrap, configuration, and DB wiring enable reliable deployment. Implemented end-to-end User and JobPost APIs (login/register, profiles, employer-authenticated JobPost creation) with JWT-based authentication and OpenAPI documentation. Enhanced data models: userType field, ID in responses, and repository/service methods (findByEmail); added UserNotFoundException and UsernameAlreadyExistsException for precise error signaling. PasswordReset module with email service wired; centralized exception handling via ControllerAdvice for consistent error responses. Updated dependencies (SpringDoc 2.7.0) to boost API docs and security, plus Gmail config for email service. Dockerfile and DB URL fixes improved container builds and reliability. Added unit tests for UserController and UserService and ensured duplicate user prevention. Overall impact: faster onboarding for developers, stronger security and reliability, and a scalable foundation for onboarding additional domains (profiles, roles, and the job-post lifecycle).
May 2025
34 Commits • 22 Features
May 1, 2025May 2025 monthly summary for bounswe/bounswe2025group4: Delivered a secure, API-driven backend foundation and feature-complete user/job-post workflows. Key scaffolding and repo cleanup established a clean baseline with ethical-jobboard subfolder. Core app bootstrap, configuration, and DB wiring enable reliable deployment. Implemented end-to-end User and JobPost APIs (login/register, profiles, employer-authenticated JobPost creation) with JWT-based authentication and OpenAPI documentation. Enhanced data models: userType field, ID in responses, and repository/service methods (findByEmail); added UserNotFoundException and UsernameAlreadyExistsException for precise error signaling. PasswordReset module with email service wired; centralized exception handling via ControllerAdvice for consistent error responses. Updated dependencies (SpringDoc 2.7.0) to boost API docs and security, plus Gmail config for email service. Dockerfile and DB URL fixes improved container builds and reliability. Added unit tests for UserController and UserService and ensured duplicate user prevention. Overall impact: faster onboarding for developers, stronger security and reliability, and a scalable foundation for onboarding additional domains (profiles, roles, and the job-post lifecycle).
Activity
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Quality Metrics
Correctness94.8%
Maintainability93.0%
Architecture92.4%
Performance89.0%
AI Usage21.8%
Skills & Technologies
Programming Languages
CSSDockerfileHTMLJavaJavaScriptPropertiesXMLYAMLenv
Technical Skills
API ConfigurationAPI DesignAPI DevelopmentAPI DocumentationAPI GatewayAPI SecurityAPI designAPI developmentAuthenticationAuthorizationBackend ConfigurationBackend DevelopmentBuild ConfigurationCORS ConfigurationCode Cleanup
Repositories Contributed To
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