Talent-Catalog/talentcatalog
Nov 2024 – Oct 2025
12 Months active
Languages Used
JavaSQLTypeScriptHTMLJavaScriptSCSSYAMLCSS
Technical Skills
API DevelopmentAngularBackend DevelopmentCSV ParsingDatabaseDatabase Interaction
Mohammad Ehsan Ehrari
PROFILE
Mohammad Ehsan Ehrari
Ehsan Hararie engineered end-to-end candidate management, coupon, and compliance workflows for the Talent-Catalog/talentcatalog repository, delivering robust backend and frontend features. He designed and migrated complex data models using Java, Spring Boot, and SQL, integrating privacy, DPA, and refugee-status requirements into scalable APIs and UI flows. Ehsan implemented Elasticsearch-backed search, modularized form handling, and automated CI/CD pipelines, while expanding test coverage with JUnit and Angular. His work included Terraform-based infrastructure, PDF generation, and Unicode normalization, resulting in reliable, maintainable systems. The depth of his contributions ensured data integrity, regulatory alignment, and efficient onboarding for both users and administrators.
Overall Statistics
Feature vs Bugs
90%Features
Repository Contributions
576Total
Bugs
21
Commits
576
Features
179
Lines of code
87,459
Activity Months12
Your Network
8 people
Work History
October 2025
17 Commits • 3 Features
Oct 1, 2025October 2025 monthly summary for Talent-Catalog/talentcatalog: Delivered core features and data-model improvements that enable richer candidate profiling and compliance with refugee-status workflows, while tightening UI/data synchronization and improving content rendering quality. The work delivered directly supports faster, more accurate candidate processing, improved member data collection, and better reporting for hiring teams and program staff.
17 Commits • 3 Features
Oct 1, 2025October 2025 monthly summary for Talent-Catalog/talentcatalog: Delivered core features and data-model improvements that enable richer candidate profiling and compliance with refugee-status workflows, while tightening UI/data synchronization and improving content rendering quality. The work delivered directly supports faster, more accurate candidate processing, improved member data collection, and better reporting for hiring teams and program staff.
October 2025
September 2025
90 Commits • 28 Features
Sep 1, 2025September 2025 was marked by a comprehensive modernization of Talent Catalog with a strong emphasis on data contracts, governance, and scalable form workflows. Key backend/data-model work aligned with TermsInfo and DPA requirements, while frontend/UI improvements improved onboarding, admin capabilities, and user experience. Also stabilized deployments with environment config updates and routing/module enhancements to support faster delivery and governance compliance.
September 2025
90 Commits • 28 Features
Sep 1, 2025September 2025 was marked by a comprehensive modernization of Talent Catalog with a strong emphasis on data contracts, governance, and scalable form workflows. Key backend/data-model work aligned with TermsInfo and DPA requirements, while frontend/UI improvements improved onboarding, admin capabilities, and user experience. Also stabilized deployments with environment config updates and routing/module enhancements to support faster delivery and governance compliance.
August 2025
48 Commits • 14 Features
Aug 1, 2025In 2025-08 Talent-Catalog/talentcatalog delivered significant business and technical gains across candidate data modeling, search, UI, and reliability. This month focused on enabling privacy-aligned candidate data handling, strengthening search capabilities, enabling travel document workflows, and hardening QA and deployment processes. Highlights include updated candidate data model and search components with privacy policy integration; travel document migrations and upload task; backend search/indexing improvements with Elasticsearch; frontend UI refinements for search and registration; and strengthened test infrastructure, environment configuration, and CI/CD secrets.
48 Commits • 14 Features
Aug 1, 2025In 2025-08 Talent-Catalog/talentcatalog delivered significant business and technical gains across candidate data modeling, search, UI, and reliability. This month focused on enabling privacy-aligned candidate data handling, strengthening search capabilities, enabling travel document workflows, and hardening QA and deployment processes. Highlights include updated candidate data model and search components with privacy policy integration; travel document migrations and upload task; backend search/indexing improvements with Elasticsearch; frontend UI refinements for search and registration; and strengthened test infrastructure, environment configuration, and CI/CD secrets.
August 2025
July 2025
87 Commits • 27 Features
Jul 1, 2025July 2025 delivered significant improvements in test coverage, data integrity, and CI/CD readiness for Talent-Catalog/talentcatalog. Key outcomes include expanded test coverage for auditing, candidate domain behavior, and model/API conversions; a robust DB integration testing framework; new repository integration tests; CI/CD and test container orchestration enhancements; and front-end/API refinements that improve data handling and user workflows. These efforts reduce regression risk, accelerate release confidence, and improve reliability of critical data and user-facing features.
July 2025
87 Commits • 27 Features
Jul 1, 2025July 2025 delivered significant improvements in test coverage, data integrity, and CI/CD readiness for Talent-Catalog/talentcatalog. Key outcomes include expanded test coverage for auditing, candidate domain behavior, and model/API conversions; a robust DB integration testing framework; new repository integration tests; CI/CD and test container orchestration enhancements; and front-end/API refinements that improve data handling and user workflows. These efforts reduce regression risk, accelerate release confidence, and improve reliability of critical data and user-facing features.
June 2025
33 Commits • 15 Features
Jun 1, 2025June 2025 - TalentCatalog backend delivered significant enhancements to user management, standardized candidate identifiers, and expanded portal API test coverage across multiple domains. Key improvements include robust User Admin API and UserService implementations, alignment of coupon service behavior, and a broad suite of portal API tests (Auth, Branding, Education, Language, Industry, Occupation, and more). A critical bug in UserServiceImpl was fixed to improve reliability, and the naming convention standardization reduces data confusion and integration risks. These efforts increase system reliability, accelerate time-to-market for admin features, and strengthen confidence in end-to-end portal workflows.
33 Commits • 15 Features
Jun 1, 2025June 2025 - TalentCatalog backend delivered significant enhancements to user management, standardized candidate identifiers, and expanded portal API test coverage across multiple domains. Key improvements include robust User Admin API and UserService implementations, alignment of coupon service behavior, and a broad suite of portal API tests (Auth, Branding, Education, Language, Industry, Occupation, and more). A critical bug in UserServiceImpl was fixed to improve reliability, and the naming convention standardization reduces data confusion and integration risks. These efforts increase system reliability, accelerate time-to-market for admin features, and strengthen confidence in end-to-end portal workflows.
June 2025
May 2025
47 Commits • 13 Features
May 1, 2025May 2025 focused on stabilizing the Talent Catalog platform through migrations, infrastructure hygiene, API/UI improvements, and expanded test coverage. Delivered a critical database migration for survey type handling, refreshed dependencies and provider lockfiles, and enhanced testing across UI, backend, and security layers. These efforts improved data integrity, release reliability, and overall product quality, enabling safer delivery of upcoming features.
May 2025
47 Commits • 13 Features
May 1, 2025May 2025 focused on stabilizing the Talent Catalog platform through migrations, infrastructure hygiene, API/UI improvements, and expanded test coverage. Delivered a critical database migration for survey type handling, refreshed dependencies and provider lockfiles, and enhanced testing across UI, backend, and security layers. These efforts improved data integrity, release reliability, and overall product quality, enabling safer delivery of upcoming features.
April 2025
47 Commits • 13 Features
Apr 1, 2025April 2025 Monthly Summary for Talent-Catalog/talentcatalog Key outcomes: - Consolidated domain/API surface by implementing migration cleanup to remove the occupation field (V1_353) and updating related Candidate models, Es, and UI components; introduced subsequent V1_354 migration to update survey type where applicable. - Stabilized data model after a series of changes by reverting conflicting Candidate-related updates (Occupation, BuilderSelector, Admin/Portal APIs, Es, and Specifications) and aligning migration numbering (352 -> 351) to restore a clean baseline. - Infrastructure and build improvements, including build.gradle refinements, Karma/test configuration adjustments, and Terraform core module creation (computing, database, DNS, networking, main/config files) to support scalable deployment. - Improved deployment readiness with a staging merge into 1107-java-jpa-test to incorporate latest integration changes and ensure end-to-end validation. Major bugs fixed: - Reverts of destabilizing Candidate occupation-related updates and aligned APIs to a stable surface. - Migration numbering alignment (renaming 352 to 351) to prevent drift between changes and deployment scripts. - Removal of occupation-related migration rollback and education major field removal updates to maintain consistency across ES and specs. Overall impact and accomplishments: - Reduced technical debt in the Candidate domain and migration tooling, improving stability for production users and downstream services. - Enhanced deployment and testing capabilities with Terraform modules and CI-friendly build/config changes, enabling faster, safer iterations. - Clear documentation of changes via commit messages and versioned migrations to facilitate audits and onboarding. Technologies/skills demonstrated: - Java (CandidateSpecification.java, CandidateEs, AdminApi, PortalApi), SQL migrations, and ES mapping adjustments - Gradle-based build and dependency management - Karma/Jasmine test configuration and test setup adjustments - Terraform IaC: core modules (compute, database, dns, network, main/config), variable and deployment refinements - Code cleanup and refactoring to remove deprecated structuring and improve maintainability
47 Commits • 13 Features
Apr 1, 2025April 2025 Monthly Summary for Talent-Catalog/talentcatalog Key outcomes: - Consolidated domain/API surface by implementing migration cleanup to remove the occupation field (V1_353) and updating related Candidate models, Es, and UI components; introduced subsequent V1_354 migration to update survey type where applicable. - Stabilized data model after a series of changes by reverting conflicting Candidate-related updates (Occupation, BuilderSelector, Admin/Portal APIs, Es, and Specifications) and aligning migration numbering (352 -> 351) to restore a clean baseline. - Infrastructure and build improvements, including build.gradle refinements, Karma/test configuration adjustments, and Terraform core module creation (computing, database, DNS, networking, main/config files) to support scalable deployment. - Improved deployment readiness with a staging merge into 1107-java-jpa-test to incorporate latest integration changes and ensure end-to-end validation. Major bugs fixed: - Reverts of destabilizing Candidate occupation-related updates and aligned APIs to a stable surface. - Migration numbering alignment (renaming 352 to 351) to prevent drift between changes and deployment scripts. - Removal of occupation-related migration rollback and education major field removal updates to maintain consistency across ES and specs. Overall impact and accomplishments: - Reduced technical debt in the Candidate domain and migration tooling, improving stability for production users and downstream services. - Enhanced deployment and testing capabilities with Terraform modules and CI-friendly build/config changes, enabling faster, safer iterations. - Clear documentation of changes via commit messages and versioned migrations to facilitate audits and onboarding. Technologies/skills demonstrated: - Java (CandidateSpecification.java, CandidateEs, AdminApi, PortalApi), SQL migrations, and ES mapping adjustments - Gradle-based build and dependency management - Karma/Jasmine test configuration and test setup adjustments - Terraform IaC: core modules (compute, database, dns, network, main/config), variable and deployment refinements - Code cleanup and refactoring to remove deprecated structuring and improve maintainability
April 2025
March 2025
70 Commits • 20 Features
Mar 1, 2025March 2025 highlights a comprehensive upgrade of coupon, candidate, and UI workflows in Talent-Catalog/talentcatalog, spanning backend, frontend, and data migrations. Key features delivered include the Duolingo Coupon Admin API and service (updated API, service interface/impl, and tests) and the Coupon Backend API, repository, and admin endpoints (plus related DuolingoCoupon model and tests). Frontend work delivered Coupon UI refinements, Admin service/import UI enhancements, main app UI updates, and candidate/task view improvements, improving usability and operational efficiency. Database migrations were cleaned up and extended from V1_343 through V1_348, removing legacy fields and updating language mappings to support new locales. Major bugs fixed include Angular test stability improvements and unit-test fixes, along with a naming correction for TaskAssignmentServiceImpl wiring. Technologies demonstrated: Java/Spring service and repository layers, TypeScript/Angular UI work, SQL migrations and data modeling, and end-to-end testing. Business value: faster feature delivery, cleaner data schema, and more reliable coupon and candidate workflows.
March 2025
70 Commits • 20 Features
Mar 1, 2025March 2025 highlights a comprehensive upgrade of coupon, candidate, and UI workflows in Talent-Catalog/talentcatalog, spanning backend, frontend, and data migrations. Key features delivered include the Duolingo Coupon Admin API and service (updated API, service interface/impl, and tests) and the Coupon Backend API, repository, and admin endpoints (plus related DuolingoCoupon model and tests). Frontend work delivered Coupon UI refinements, Admin service/import UI enhancements, main app UI updates, and candidate/task view improvements, improving usability and operational efficiency. Database migrations were cleaned up and extended from V1_343 through V1_348, removing legacy fields and updating language mappings to support new locales. Major bugs fixed include Angular test stability improvements and unit-test fixes, along with a naming correction for TaskAssignmentServiceImpl wiring. Technologies demonstrated: Java/Spring service and repository layers, TypeScript/Angular UI work, SQL migrations and data modeling, and end-to-end testing. Business value: faster feature delivery, cleaner data schema, and more reliable coupon and candidate workflows.
February 2025
35 Commits • 12 Features
Feb 1, 2025February 2025 (2025-02) focused on delivering business-critical coupon capabilities, strengthening search/indexing, expanding data model, and cleaning architecture for reliability and scalability. Key outcomes include: implemented coupon persistence layer, service interfaces/implementations, and comprehensive unit tests; enhanced candidate indexing with ES mappings and builder selector; added a new DuolingoExtraFields module with entity, repository, service and database migrations; improved reliability through error handling enhancements and modularization (task reallocation, removal of unused dependencies); and integrated admin/exam service improvements along with frontend translations to improve user experience. These changes enable a scalable coupon program, faster candidate lookups, and more robust admin workflows, reducing maintenance cost and supporting growth.
35 Commits • 12 Features
Feb 1, 2025February 2025 (2025-02) focused on delivering business-critical coupon capabilities, strengthening search/indexing, expanding data model, and cleaning architecture for reliability and scalability. Key outcomes include: implemented coupon persistence layer, service interfaces/implementations, and comprehensive unit tests; enhanced candidate indexing with ES mappings and builder selector; added a new DuolingoExtraFields module with entity, repository, service and database migrations; improved reliability through error handling enhancements and modularization (task reallocation, removal of unused dependencies); and integrated admin/exam service improvements along with frontend translations to improve user experience. These changes enable a scalable coupon program, faster candidate lookups, and more robust admin workflows, reducing maintenance cost and supporting growth.
February 2025
January 2025
31 Commits • 8 Features
Jan 1, 2025January 2025 monthly summary for Talent-Catalog/talentcatalog focusing on API contract stabilization, UI/UX improvements, and test coverage expansion. Key outcomes include naming convention alignment across API and UI, enhanced test coverage for services and configuration, and data model updates that simplify candidate handling and builder flow. The month also delivered dashboard API updates and an admin coupon test to improve end-to-end validation and governance. Branding assets were added to support UI consistency.
January 2025
31 Commits • 8 Features
Jan 1, 2025January 2025 monthly summary for Talent-Catalog/talentcatalog focusing on API contract stabilization, UI/UX improvements, and test coverage expansion. Key outcomes include naming convention alignment across API and UI, enhanced test coverage for services and configuration, and data model updates that simplify candidate handling and builder flow. The month also delivered dashboard API updates and an admin coupon test to improve end-to-end validation and governance. Branding assets were added to support UI consistency.
December 2024
36 Commits • 15 Features
Dec 1, 2024December 2024 performance summary for Talent-Catalog/talentcatalog: Delivered end-to-end Duolingo feature set and platform enhancements, delivering business value through coupon promotions, improved analytics contracts, admin capabilities, and deployment/config improvements. Focused on delivering measurable outcomes with tests, migrations, and UI wiring to enable production readiness and scale.
36 Commits • 15 Features
Dec 1, 2024December 2024 performance summary for Talent-Catalog/talentcatalog: Delivered end-to-end Duolingo feature set and platform enhancements, delivering business value through coupon promotions, improved analytics contracts, admin capabilities, and deployment/config improvements. Focused on delivering measurable outcomes with tests, migrations, and UI wiring to enable production readiness and scale.
December 2024
November 2024
35 Commits • 11 Features
Nov 1, 2024November 2024: Delivered end-to-end Duolingo Coupons capability in Talent-Catalog/talentcatalog, modernizing the codebase with Jakarta EE namespace migration and robust database migrations, while updating UI components for admin/candidate portals and performing targeted cleanup to reduce technical debt.
November 2024
35 Commits • 11 Features
Nov 1, 2024November 2024: Delivered end-to-end Duolingo Coupons capability in Talent-Catalog/talentcatalog, modernizing the codebase with Jakarta EE namespace migration and robust database migrations, while updating UI components for admin/candidate portals and performing targeted cleanup to reduce technical debt.
Activity
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Quality Metrics
Correctness90.2%
Maintainability90.8%
Architecture86.6%
Performance87.2%
AI Usage21.2%
Skills & Technologies
Programming Languages
AngularBashCSSGradleHCLHTMLJSONJavaJavaScriptN/A
Technical Skills
ALBAPI ConfigurationAPI DevelopmentAPI IntegrationAPI Response ModelingAPI TestingAWSAccess ControlAngularAngular TestingBackend DevelopmentBuild AutomationBuild ManagementBuild Script ManagementCI/CD
Repositories Contributed To
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