EXCEEDS logo
Exceeds
Mohamed El-Sawy

PROFILE

Mohamed El-sawy

Mohamed Elsawy contributed to the meedan/check-api and check-web repositories, delivering robust features and infrastructure improvements over 19 months. He engineered scalable API endpoints, optimized database queries, and enhanced search and data export workflows using Ruby on Rails, GraphQL, and React. His work included automating background jobs, refining permission controls, and implementing team-based API key management to strengthen security and maintainability. Mohamed addressed N+1 query issues, introduced caching strategies, and streamlined real-time communication, resulting in lower latency and improved reliability. His technical depth is evident in the breadth of backend and frontend solutions, consistently aligning with business and operational goals.

Overall Statistics

Feature vs Bugs

71%Features

Repository Contributions

121Total
Bugs
28
Commits
121
Features
67
Lines of code
1,403,782
Activity Months19

Your Network

2 people

Work History

April 2026

7 Commits • 5 Features

Apr 1, 2026

April 2026: Security hardening, automation, and UX improvements across check-api and check-web. Key features delivered include Slack authentication deprecation, automatic API key expiry and webhook cleanup for deactivated workspaces, team-level newsletter subscriptions with enable/disable toggles and subscriber limits, and UI customization for newsletter visibility. Also removed Honeycomb telemetry to reduce maintenance overhead. In check-web, added conditional display of the newsletter tab based on Team.settings. Major bugs fixed include a Sentry NoMethodError fix in newsletter flows and broader test stabilization across features. These efforts improve security posture, reduce operational costs, enhance user experience, and improve observability. Technologies demonstrated include security-focused design, automated lifecycle management, platform logging, test-driven development, rake tasks, and telemetry tooling.

March 2026

11 Commits • 6 Features

Mar 1, 2026

March 2026 performance highlights across meedan/check-api and meedan/check-web. Delivered cost optimization, performance enhancements, and increased maintainability through cross-repo automation, feature cleanups, and targeted bug fixes. Key features delivered included automated inactive team cleanup with cache/Elasticsearch maintenance, global audio similarity deactivation across users, deprecation of Slack notifications, background annotation field creation with date-range support, and tagging performance improvements with a JSONB-backed index. Major fixes reduced Sentry errors and stabilized deployment workflows. Business impact includes AWS cost savings, faster tag queries, reduced maintenance overhead, and simpler configuration. Demonstrated skills: Ruby/Rake tasks, Rails background processing, Elasticsearch, JSONB indexing, migrations, and robust error handling.

February 2026

7 Commits • 3 Features

Feb 1, 2026

February 2026 Monthly Summary for Meedan product development. Focused on delivering secure, scalable API capabilities, improving performance, and simplifying the API surface to reduce maintenance overhead. Key outcomes include team-scoped API key management, GraphQL abuse prevention, removal of deprecated integrations, and performance fixes for bot user data retrieval, along with deployment reliability improvements in the web app.

January 2026

4 Commits • 4 Features

Jan 1, 2026

January 2026: Focused on performance, security, and data-layer efficiency across check-api and check-web. Implemented a claim lookup performance optimization, introduced an invitation-based onboarding system, and added bulk task creation to reduce N+1 queries. All changes included test refinements and migrations to preserve data integrity, improving user experience and system reliability while tightening access controls across platforms. These efforts lowered operational latency for claim lookups, reduced database load, and strengthened security posture and onboarding governance.

December 2025

3 Commits • 1 Features

Dec 1, 2025

Monthly performance snapshot for 2025-12: Delivered targeted feature work and integrity safeguards in the check-api repository, enabling better usage visibility, admin control, and data governance. The changes reduce risk around API key ownership, track usage, and prevent invalid relationship configurations while enhancing automation and maintainability.

November 2025

5 Commits • 3 Features

Nov 1, 2025

November 2025 performance highlights across check-api and check-web, focusing on delivering high-value features, hardening data integrity, and reducing technical debt. Key deliverables include Tipline Search Enhancement (CV2-6628) to include FACTCHECK_IMPORT items in tipline search results; Item Relationship Integrity Check (CV2-6615) to prevent relating items when report status is published; Annotations Edit Reliability (CV2-6627) via a two-query task retrieval refactor to ensure correct tasks are fetched for the Annotations Edit button; API v2 Deprecation and Documentation (CV2-6605) removing v2 endpoints, restoring necessary files, maintaining 100% test coverage, and updating docs; and Media management: Pause items in FACTCHECK_IMPORT state (CV2-6625) to improve editability and status handling.

October 2025

4 Commits • 3 Features

Oct 1, 2025

Monthly summary for 2025-10 capturing key feature deliveries, major bug fixes, and overall impact across the codebase. Focused on improving data integrity, security, lifecycle management, and business value through targeted changes in check-api and check-web with supporting tests and tooling.

September 2025

7 Commits • 5 Features

Sep 1, 2025

September 2025 monthly summary for Meedan repositories (check-api, check-web). This period focused on security, performance, and data integrity improvements that reduce latency, lower DB load, and improve the reliability of fact-check workflows. Deliveries span GraphQL authentication hardening, database performance optimizations, and UI/data-flow refinements that collectively enhance business value and developer velocity. Key features delivered - GraphQL Authentication Enforcement: Hardened access control across GraphQL operations by refactoring authentication logic to inspect the operation definition, requiring auth for most queries/mutations while allowing query Me. Commit df1bd11a047aadbb9b3ab99812840b0aad2be8ac. - Claim Media Query Performance Optimization (Index): Added a database index on medias.quote for records where type is 'Claim' to speed up claim-related media queries; updated schemas/migrations and tests. Commit e99930f8d126ce83eb54f5c64d8dbef9d56e2220. - N+1 Query Fix in ProjectMediaCachedFields: Optimized tag retrieval with a direct DB query for tag IDs followed by text lookups to replace the previous annotation-mapping approach, reducing DB load. Commit 42bc849c8286ba94687a7949494e13d1a7ea636b. - Bot Notification N+1 Resolution via Eager Loading: Introduced includes for team_bot_installations and bot_user to reduce DB round-trips in the bot notification system, boosting throughput. Commit a6892fa283e191930ec3c0550e8eccb238b1a00e. - Imported Fact Checks: Replace Blank with Claim Media: Deprecates the 'Blank' media type and replaces it with 'Claim' media in imported fact checks, updating creation flows, relationships, indexing, and tests to ensure data integrity. Commit ebafa6adf9ce7b31d2b259a3acceb02292dbc78a. Major bugs fixed - Smooch CAPI Unknown Status Handling: Extended delivery status checks to treat and log 'unknown' as a valid state alongside 'failed' to ensure proper processing of uncertain message deliveries. Commit 8965a32c3bffd9dde36198a1d8632ccad557a04c. - N+1 Queryes resolved in related areas (e.g., ProjectMediaCachedFields, BotUser) through eager loading and optimized queries, reducing runtime DB load and improving response times. Overall impact and accomplishments - Improved security posture with GraphQL operation-level authentication, reducing risk of unauthorized access. - Lower DB load and faster responses for media tagging, claims, and bot notifications, enhancing system scalability and user experience. - Data integrity strengthened by aligning import flows with the Claim media model and updating UI visibility for fact-checks. - Sustained developer velocity through targeted performance fixes and migrations with tests updated accordingly. Technologies/skills demonstrated - Ruby on Rails, ActiveRecord includes/eager loading, and migration/testing practices. - GraphQL operation inspection and authorization patterns. - Direct SQL-based data retrieval optimization (tag IDs/Texts). - Database indexing and schema migrations to boost query performance. - UI/UX alignment for fact-check visibility in the web UI.

August 2025

5 Commits • 2 Features

Aug 1, 2025

August 2025: Delivered core feature enhancements to the createFactCheck mutation, prepared release readiness with a version bump, and implemented targeted fixes to improve stability and robustness in multilingual publishing workflows within meedan/check-api.

July 2025

6 Commits • 5 Features

Jul 1, 2025

Month: 2025-07 — A focused month delivering high-value features, performance optimizations, and clearer deprecation paths across two repositories (meedan/check-web and meedan/check-api). The work prioritized business value, reliability, and observability while maintaining strong cross-team collaboration.

June 2025

10 Commits • 5 Features

Jun 1, 2025

June 2025 (2025-06) focused on delivering high-value features for reliability, data hygiene, and maintainability across API and Web surfaces, along with a clear deprecation path for legacy models. The team shipped user-facing reliability improvements, aligned configuration with workspace defaults, hardened media handling, and reduced technical debt by removing obsolete models and tightening API surfaces. These efforts improve deliverability, data quality, developer productivity, and long-term maintainability, aligning with the roadmap and business goals.

May 2025

11 Commits • 6 Features

May 1, 2025

May 2025 performance summary: Delivered cross-repo features across meedan/check-api and meedan/check-web focused on business value, data quality, reliability, and performance. Key outcomes include improved Saved Searches with list_type-based filtering and accurate per-team counts; esqueue-based routing for cached field indexing to optimize background processing; proactive observability via MonthlyTeamStatistic checks with Sentry alerts; enhanced activity visibility through last_active_at timestamps for users and TeamUser records; and user-facing improvements via Custom Article Lists UI with robust filtering. Additional robustness and performance enhancements included nil checks for Elasticsearch updates and a Smooch bot installation query optimization, contributing to lower latency and better data accuracy for teams.

April 2025

6 Commits • 4 Features

Apr 1, 2025

April 2025 performance summary focusing on delivering cross-database integrity, improved content organization, and automation enhancements across Meedan's check pipelines. Achieved data consistency between PostgreSQL and Elasticsearch for sources_count, introduced SavedSearch list_type for precise filtering, expanded Tipline capabilities with explainers mutations and Smooch bot enhancements, and refined message handling for readability. Addressed a frontend SavedSearch categorization bug to ensure correct default labeling.

March 2025

9 Commits • 4 Features

Mar 1, 2025

March 2025 highlights for meedan/check-api: Delivered key features to improve model visibility, indexing performance, and data export efficiency, while strengthening reliability and data integrity across the API. These outcomes enable faster insights, better traceability of models contributing to text similarity, more scalable search, and safer data processing in production.

February 2025

2 Commits • 1 Features

Feb 1, 2025

February 2025 monthly summary for Meedan projects. Focused on delivering a targeted feature overhaul in search configuration and standardizing terminology to improve maintainability and user clarity. No major bugs fixed this month; system stability was maintained across repositories. The work sets the groundwork for broader search enhancements in the upcoming sprint.

January 2025

10 Commits • 4 Features

Jan 1, 2025

January 2025 monthly summary: Focused on delivering high-value features for search relevance, robust data integrity, and improved reporting, while expanding observability and UI capabilities to support business decisions. The team shipped user interaction logging to refine relevance ranking, enabled OCR-based image search to broaden content discovery, and added CSV export for dashboards to streamline reporting. Several data integrity and reliability fixes were completed, ensuring more accurate last_seen calculations, synchronized statuses across related items, and safer status handling. Frontend and export tooling enhancements tightened dashboard usability and consistency, delivering measurable business value and operational reliability.

December 2024

4 Commits • 1 Features

Dec 1, 2024

December 2024 monthly summary — Meedan/check-api: Overview: Delivered a significant upgrade to Advanced Search and Related Content Discovery, driving higher relevance, faster discovery, and broader content coverage for editors and researchers. Backend refactors and performance optimizations improved the end-to-end search experience, with new endpoints/fields to support richer discovery in production. Key deliverables: - Advanced Search and Related Content Discovery: Refactored search logic, improved ranking, enhanced discovery of related articles (fact-checks and explainers), added endpoints/fields, and implemented result caching and parallel requests. Also enabled inclusion of unpublished articles to boost relevance and timeliness. Impact: Higher relevance and coverage reduced time-to-find for high-value content, improved user satisfaction for research workflows, and better preparation for editorial decisions. Backend changes set the foundation for more robust search features and faster iterations. Notable work patterns: backend refactor for search pipeline, API surface expansion, caching strategy, and parallelism in requests to reduce latency. Overall assessment: Strong technical execution with clear business value through improved discovery reliability and performance.

November 2024

5 Commits • 3 Features

Nov 1, 2024

November 2024 monthly summary focusing on strengthening data integrity, reliability, and search relevance in the meedan/check-api. Delivered core data handling fixes, safer background processing, and Elasticsearch relationship maintenance, along with targeted tests to boost API and search robustness. The changes reduce data inconsistencies, improve background task safety, and enhance the relevance of related item results, delivering measurable business value in data quality and search-driven workflows.

October 2024

5 Commits • 2 Features

Oct 1, 2024

October 2024 monthly summary for meedan/check-api. Delivered key features and bug fixes that improved data integrity, processing efficiency, and logging for historical accuracy. Highlights include automatic explainer item consolidation on confirmed relationships, deduplicated processing for matched items, caption text correctness, export dedup logic with tests, and background job optimization using object IDs to reduce payloads and improve efficiency. These changes drive reliability, quicker processing, and scalable workflows in the core media relationship processing pipeline.

Activity

Loading activity data...

Quality Metrics

Correctness89.4%
Maintainability85.6%
Architecture82.8%
Performance83.8%
AI Usage20.8%

Skills & Technologies

Programming Languages

DockerfileGraphQLJSONJavaScriptRubySQLYAML

Technical Skills

API DevelopmentAPI IntegrationAPI developmentAWS S3Backend DevelopmentBackground JobsCI/CDCSV GenerationCachingCode CleanupCode RefactoringComponent ManagementContainerizationData CleaningData Compression

Repositories Contributed To

2 repos

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

meedan/check-api

Oct 2024 Apr 2026
19 Months active

Languages Used

RubySQLGraphQLJavaScript

Technical Skills

API DevelopmentBackend DevelopmentDatabase ManagementRuby on RailsElasticsearchSearch Implementation

meedan/check-web

Jan 2025 Apr 2026
13 Months active

Languages Used

JavaScriptGraphQLRubyJSONDockerfileYAML

Technical Skills

Front End DevelopmentReactFrontend DevelopmentGraphQLJavaScriptRelay