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Dev Singh

PROFILE

Dev Singh

Over a 14-month period, contributed to acm-uiuc/core, acm-uiuc/website, and PrairieLearn/PrairieLearn by delivering features and fixes spanning API development, cloud infrastructure, and full stack engineering. Built scalable authentication, membership, and event management systems using TypeScript, Node.js, and AWS services such as Lambda, DynamoDB, and SQS. Enhanced CI/CD pipelines and deployment reliability with GitHub Actions and Terraform, while improving user experience through robust UI/UX updates in React and Next.js. Addressed data integrity and interoperability by implementing shared libraries, schema validation, and conversion tools. Prioritized maintainability, test coverage, and clear documentation to support onboarding, governance, and cross-team collaboration.

Overall Statistics

Feature vs Bugs

56%Features

Repository Contributions

145Total
Bugs
41
Commits
145
Features
53
Lines of code
17,368
Activity Months14

Work History

April 2026

1 Commits • 1 Features

Apr 1, 2026

April 2026 monthly highlights for PrairieLearn: Delivered the QTI to PrairieLearn conversion package enabling QTI 1.2/2.1 questions to be converted into PrairieLearn format, unlocking interoperability with external assessment tools and streamlining content migration. The work included implementing robust transforms, preserving source IDs for traceability, and enhancing MIME handling. Refactored the code to a registry-based emitter pattern, added logging, and carried out quality improvements (linting, tests, formatting) to align with CI standards. This groundwork sets the stage for broader question-type support and future rubric parsing enhancements.

March 2026

1 Commits • 1 Features

Mar 1, 2026

March 2026 — PrairieLearn/PrairieLearn: Delivered Configurable Assessment Question Preferences with database-backed storage, schema validation, and editor resilience improvements; expanded testing and refactoring to centralize validation in course-db; these changes enable reliable per-question customization, improve data integrity, and reduce editor-related data loss.

January 2026

1 Commits • 1 Features

Jan 1, 2026

January 2026 (acm-uiuc/core) — Delivered Room Reservation Email Content Enhancement to include the host organization name in emails, improving clarity for recipients and reducing potential confusion. This work was implemented with a focused code change and ensured traceability to the commit. Major bug fix: corrected room request host mapping in emails (commit 063dd0776c59df26cbbfd437db36394d9d155d22). Overall impact includes clearer communications for room reservations and improved data accuracy in user-facing emails. Technologies/skills demonstrated include email templating, data mapping for host information, Git-based change management, and end-to-end feature delivery within a single repository.

November 2025

4 Commits • 1 Features

Nov 1, 2025

November 2025: Delivered customer-facing authentication gating, improved mobile login reliability, and hardened deployment workflows across acm-uiuc/website and acm-uiuc/core. Key business value includes increased member conversions for Illinois users due to NetID-based pricing gating, reduced mobile friction during checkout, and lower release risk through stable deployments and more reliable end-to-end testing. Technologies demonstrated include NetID-based authentication, membership state management, mobile auth flows, CI/CD deployment enhancements, and a shift from QA to development in end-to-end testing.

October 2025

54 Commits • 13 Features

Oct 1, 2025

October 2025 monthly summary focusing on stability, governance, and regional cloud improvements across core services and the ACM website. The work improved data integrity, onboarding efficiency, security posture, and regional operability, delivering measurable business value through cloud migrations, identity/group automation, governance enhancements, and reliability improvements.

September 2025

3 Commits • 3 Features

Sep 1, 2025

September 2025 performance summary: Delivered pricing and identity enhancements across core and website, driving business value through consistency and responsiveness. Key work included centralizing Stripe price IDs via a shared library in acm-uiuc/core, replacing hardcoded pricing with dynamic imports in acm-uiuc/website, and implementing fire-and-forget UIUC identity synchronization to refresh user data after membership actions. No major bugs reported this month. Impact includes reduced pricing drift, faster UI response, and easier maintenance through shared libraries and cross-repo coordination. Technologies demonstrated include shared libraries, dynamic imports, environment configuration, yarn.lock management, and asynchronous tasks.

August 2025

6 Commits • 1 Features

Aug 1, 2025

Monthly summary for 2025-08: Delivered critical reliability and UX improvements across two repositories. Stabilized deployment pipeline, fixed navigation and URL handling, and introduced Docker-based development environment to streamline testing. Also corrected event handling logic to ensure accurate display of repeating events with exclusions. These changes enhance release reliability, developer efficiency, and user experience for students and faculty.

July 2025

21 Commits • 9 Features

Jul 1, 2025

July 2025 monthly summary for acm-uiuc/core: Delivered meaningful Lambda warmer improvements, reliability fixes, and documentation/ops enhancements that drive faster feature delivery, lower resource costs, and safer development and integration across the API surface. The work combined targeted fixes, architectural simplifications, and clear documentation to improve developer and partner experience while maintaining strict quality and deployment safety.

June 2025

3 Commits • 1 Features

Jun 1, 2025

June 2025 monthly summary: Focused on stabilizing navigation and build reliability across two core repos. Fixed critical URL and metadata integrity issues in illinois-cs241hub.io by updating repository and coursebook links in docs and configuration files, preventing broken references for learners and maintainers. In acm-uiuc/core, updated the CI/CD workflow to use the ubuntu-latest runner for the autoupdate job, enhancing compatibility with the latest Ubuntu environment and strengthening CI reliability and security. These changes reduce support overhead, improve onboarding, and ensure materials and builds stay in sync with current infrastructure.

May 2025

2 Commits

May 1, 2025

May 2025 monthly summary focusing on business value and technical achievements across two repositories. Delivered reliability improvements in deployment and stable user navigation, with concrete git-backed changes and clear impact on production risk.

April 2025

18 Commits • 9 Features

Apr 1, 2025

April 2025 monthly summary focusing on delivering features, reliability, performance, and governance across two repositories. Highlights include user-facing improvements (ticketing email handling, subdomain root redirect, Terms of Service integration), API/data model enhancements (event metadata support), performance optimization (CloudFront caching for organizations endpoint), deployment observability (GitHub Run ID included in AWS role sessions), and reliability improvements (Stripe transaction handling and host restriction messaging). Minor UI polish and documentation updates completed in parallel. Overall, these efforts improved data integrity, system performance, and deployment traceability while enabling compliant, scalable user experiences.

March 2025

22 Commits • 9 Features

Mar 1, 2025

March 2025: Delivered critical platform improvements across core services and hub sites, strengthening security, performance, and testing while expanding data integration capabilities. Key enhancements include CloudFront caching/CORS hardening, cross-account SQS processing via Entra role, external lists functionality with focused tests, and targeted UI/content delivery improvements to reduce stale content and improve shareability. Expanded test coverage with unit tests and live tests to raise deployment confidence and support faster incident diagnosis.

February 2025

8 Commits • 4 Features

Feb 1, 2025

February 2025 summary focused on delivering user-facing UX improvements, scalable access management, security hardening, and code quality improvements for business value. Delivered features and fixes across acm-uiuc/core with measurable impact on user experience, admin efficiency, and security posture.

January 2025

1 Commits

Jan 1, 2025

January 2025 (Month: 2025-01) focused on stabilizing the Docker-based development experience for the acm-uiuc/core repository by applying a robust Vite dev server configuration, updating dependencies, and delivering a fix to ensure consistent port behavior in Docker environments. The work reduces flaky dev setups, speeds onboarding, and improves CI reliability.

Activity

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Quality Metrics

Correctness90.0%
Maintainability90.0%
Architecture87.2%
Performance87.8%
AI Usage22.2%

Skills & Technologies

Programming Languages

CSSCloudFormationHCLHTMLJavaScriptMakefileMarkdownReactRubySQL

Technical Skills

API DesignAPI DevelopmentAPI DocumentationAPI GatewayAPI IntegrationAPI TestingAPI developmentAPI integrationAWSAWS DynamoDBAWS IAMAWS LambdaAWS SDKAWS SQSAsynchronous Operations

Repositories Contributed To

4 repos

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

acm-uiuc/core

Jan 2025 Jan 2026
11 Months active

Languages Used

JavaScriptTypeScriptCloudFormationHTMLYAMLReactCSSMakefile

Technical Skills

DockerFrontend DevelopmentViteAPI IntegrationAWS SDKFront End Development

illinois-cs241/illinois-cs241hub.io.git

Mar 2025 Aug 2025
5 Months active

Languages Used

HTMLYAMLMarkdownRubyJavaScript

Technical Skills

Configuration ManagementWeb DevelopmentFront End DevelopmentDocumentationCI/CDDevOps

acm-uiuc/website

Aug 2025 Nov 2025
4 Months active

Languages Used

JavaScriptTypeScript

Technical Skills

Date ManipulationEvent SchedulingFrontend DevelopmentUtility FunctionsAPI IntegrationAsynchronous Operations

PrairieLearn/PrairieLearn

Mar 2026 Apr 2026
2 Months active

Languages Used

JavaScriptSQLTypeScript

Technical Skills

Node.jsPostgreSQLTypeScriptfull stack developmentfront end development