kiesraad/abacus
Oct 2024 – May 2026
20 Months active
Languages Used
CSSJavaScriptMarkdownRustTypeScriptSQLSVGYAML
Technical Skills
API IntegrationBackend DevelopmentDatabase ManagementDocumentationFrontend DevelopmentInternationalization (i18n)
Ellen
PROFILE
Ellen
Over 20 months, contributed to the kiesraad/abacus repository by building and refining core election management features, including data entry workflows, committee session lifecycle management, and regulatory-compliant reporting. Leveraged Rust, TypeScript, and React to implement robust backend APIs, modular frontend components, and secure authentication, while maintaining data integrity through validation logic and comprehensive testing. Enhanced the platform’s reliability with improvements to apportionment algorithms, PDF generation, and role-based access controls. Focused on maintainability by refactoring code, modernizing dependencies, and expanding documentation. This work enabled transparent, auditable election processes and streamlined user experience for coordinators, typists, and administrators across the application.
Overall Statistics
Feature vs Bugs
82%Features
Repository Contributions
234Total
Bugs
24
Commits
234
Features
111
Lines of code
383,454
Activity Months20
Your Network
12 peopleWork History
May 2026
6 Commits • 4 Features
May 1, 2026Monthly work summary for Kiesraad/Abacus - May 2026 focused on delivering robust seat assignment reporting, improving handling of deceased candidates in apportionment, expanding testing coverage to reduce regressions, and maintaining codebase clarity. These efforts increased reporting accuracy, user flow reliability, and overall maintainability, aligning delivery with election process requirements and business value.
6 Commits • 4 Features
May 1, 2026Monthly work summary for Kiesraad/Abacus - May 2026 focused on delivering robust seat assignment reporting, improving handling of deceased candidates in apportionment, expanding testing coverage to reduce regressions, and maintaining codebase clarity. These efforts increased reporting accuracy, user flow reliability, and overall maintainability, aligning delivery with election process requirements and business value.
May 2026
April 2026
11 Commits • 4 Features
Apr 1, 2026April 2026 — Kiesraad/Abacus delivered substantial enhancements to election data modeling, reporting, and apportionment workflows, yielding regulatory-ready reporting, higher data quality, and more robust core algorithms. Highlights span data model improvements, PDF report generation, CSB-specific apportionment controls, seat-allocation infrastructure, and security hardening across dependencies.
April 2026
11 Commits • 4 Features
Apr 1, 2026April 2026 — Kiesraad/Abacus delivered substantial enhancements to election data modeling, reporting, and apportionment workflows, yielding regulatory-ready reporting, higher data quality, and more robust core algorithms. Highlights span data model improvements, PDF report generation, CSB-specific apportionment controls, seat-allocation infrastructure, and security hardening across dependencies.
March 2026
8 Commits • 4 Features
Mar 1, 20262026-03 monthly summary for kiesraad/abacus focused on delivering a comprehensive Election Apportionment upgrade, improving data integrity, user experience, and maintainability. Key features and UI enhancements were shipped end-to-end, with backend data model changes aligned to frontend representations, and a progressive refactor to modularize core traits and structs.
8 Commits • 4 Features
Mar 1, 20262026-03 monthly summary for kiesraad/abacus focused on delivering a comprehensive Election Apportionment upgrade, improving data integrity, user experience, and maintainability. Key features and UI enhancements were shipped end-to-end, with backend data model changes aligned to frontend representations, and a progressive refactor to modularize core traits and structs.
March 2026
February 2026
7 Commits • 4 Features
Feb 1, 2026February 2026 — Kiesraad Abacus: Delivered platform modernization with modular middleware enablement and an upgrade of the Node.js runtime to v24, enabling a more scalable configuration and future extensions. Strengthened core logic with robust apportionment handling for non-consecutive lists and candidate numbers, supported by expanded tests and documentation for the apportionment crate. Improved API clarity and developer experience through OpenAPI doc and code comment cleanups, and advanced UI consistency via design system updates (default button types and color variables) with associated tests. These efforts reduce runtime risk, accelerate feature delivery, and lay groundwork for scalable backend and frontend iterations. Demonstrated skills include Node.js backend modernization, Rust crate testing and documentation, API design clarity, and design system engineering.
February 2026
7 Commits • 4 Features
Feb 1, 2026February 2026 — Kiesraad Abacus: Delivered platform modernization with modular middleware enablement and an upgrade of the Node.js runtime to v24, enabling a more scalable configuration and future extensions. Strengthened core logic with robust apportionment handling for non-consecutive lists and candidate numbers, supported by expanded tests and documentation for the apportionment crate. Improved API clarity and developer experience through OpenAPI doc and code comment cleanups, and advanced UI consistency via design system updates (default button types and color variables) with associated tests. These efforts reduce runtime risk, accelerate feature delivery, and lay groundwork for scalable backend and frontend iterations. Demonstrated skills include Node.js backend modernization, Rust crate testing and documentation, API design clarity, and design system engineering.
January 2026
29 Commits • 19 Features
Jan 1, 2026January 2026: Kiesraad/Abacus delivered a concise set of frontend quality improvements, security tooling updates, and Rust project infrastructure enhancements that bolster reliability, security posture, and developer velocity. Notable outcomes include a hardened frontend code quality baseline, refactored test structure for airgap detection, security tooling upgrades for Rust, API type safety improvements via generated TypeScript values from Rust enums, and scalable Rust project organization via a Cargo workspace. Additionally, a backend vulnerability fix was applied through a targeted cargo update to address RSA-related risk. These efforts reduce risk, improve API reliability, and enable faster, safer feature delivery across the platform.
29 Commits • 19 Features
Jan 1, 2026January 2026: Kiesraad/Abacus delivered a concise set of frontend quality improvements, security tooling updates, and Rust project infrastructure enhancements that bolster reliability, security posture, and developer velocity. Notable outcomes include a hardened frontend code quality baseline, refactored test structure for airgap detection, security tooling upgrades for Rust, API type safety improvements via generated TypeScript values from Rust enums, and scalable Rust project organization via a Cargo workspace. Additionally, a backend vulnerability fix was applied through a targeted cargo update to address RSA-related risk. These efforts reduce risk, improve API reliability, and enable faster, safer feature delivery across the platform.
January 2026
December 2025
37 Commits • 24 Features
Dec 1, 2025December 2025 (2025-12) monthly summary for kiesraad/abacus. The team delivered core feature improvements, stability fixes, and extensive modernization of the test and linting pipeline, driving reliability, developer productivity, and better API UX.
December 2025
37 Commits • 24 Features
Dec 1, 2025December 2025 (2025-12) monthly summary for kiesraad/abacus. The team delivered core feature improvements, stability fixes, and extensive modernization of the test and linting pipeline, driving reliability, developer productivity, and better API UX.
November 2025
13 Commits • 8 Features
Nov 1, 2025November 2025 (2025-11) monthly summary for kiesraad/abacus. Focus on business value and technical achievements across UI, API, and data integrity enhancements.
13 Commits • 8 Features
Nov 1, 2025November 2025 (2025-11) monthly summary for kiesraad/abacus. Focus on business value and technical achievements across UI, API, and data integrity enhancements.
November 2025
October 2025
9 Commits • 5 Features
Oct 1, 2025October 2025 monthly summary highlighting key features delivered, major bug fixes, and overall impact across kiesraad/abacus. Focus on governance workflow improvements, data integrity, access controls, and auditing with concrete deliverables and business value.
October 2025
9 Commits • 5 Features
Oct 1, 2025October 2025 monthly summary highlighting key features delivered, major bug fixes, and overall impact across kiesraad/abacus. Focus on governance workflow improvements, data integrity, access controls, and auditing with concrete deliverables and business value.
September 2025
12 Commits • 4 Features
Sep 1, 2025September 2025 focused on delivering end-to-end election reporting capabilities, stabilizing core workflows, and refining validation, investigations, and UX. Key features enable generation and storage of results in both EML/XML and PDF, linking reports to committee sessions, and exposing a corrigendum PDF endpoint, while UI improvements enhance how reports are accessed and downloaded. The workflow improves reliability of the election process and data integrity across reporting, imports, investigations, and validation paths.
12 Commits • 4 Features
Sep 1, 2025September 2025 focused on delivering end-to-end election reporting capabilities, stabilizing core workflows, and refining validation, investigations, and UX. Key features enable generation and storage of results in both EML/XML and PDF, linking reports to committee sessions, and exposing a corrigendum PDF endpoint, while UI improvements enhance how reports are accessed and downloaded. The workflow improves reliability of the election process and data integrity across reporting, imports, investigations, and validation paths.
September 2025
August 2025
13 Commits • 3 Features
Aug 1, 2025August 2025 performance summary for kiesraad/abacus: Delivered end-to-end Committee Sessions lifecycle management, including creation, deletion, details, status transitions, and robust error handling for paused sessions. Launched Election Management Enhancements with a data-entry workflow (start/pause/resume/finish), updated access control for changing eligible voters, and a refactor of data fetching/management. Achieved UI/Testing polish and stability improvements across data-entry forms and key pages, including styling consistency and more reliable tests (wait utilities and precise mocks). Implemented a user-facing 409 error modal for paused sessions to improve feedback and reduce support load, and fixed several flaky tests (Overview/Election pages) to accelerate release readiness. Overall, these changes streamline committee operations, strengthen election data workflows, and enhance user experience while improving code quality and test reliability.
August 2025
13 Commits • 3 Features
Aug 1, 2025August 2025 performance summary for kiesraad/abacus: Delivered end-to-end Committee Sessions lifecycle management, including creation, deletion, details, status transitions, and robust error handling for paused sessions. Launched Election Management Enhancements with a data-entry workflow (start/pause/resume/finish), updated access control for changing eligible voters, and a refactor of data fetching/management. Achieved UI/Testing polish and stability improvements across data-entry forms and key pages, including styling consistency and more reliable tests (wait utilities and precise mocks). Implemented a user-facing 409 error modal for paused sessions to improve feedback and reduce support load, and fixed several flaky tests (Overview/Election pages) to accelerate release readiness. Overall, these changes streamline committee operations, strengthen election data workflows, and enhance user experience while improving code quality and test reliability.
July 2025
7 Commits • 3 Features
Jul 1, 2025July 2025 highlights for kiesraad/abacus focused on strengthening security and reliability via dependency management, and on expanding data modeling and governance capabilities for committee sessions. Key work included backend dependency updates to the latest npm and cargo versions, improving security, performance, and stability without altering application logic. I also delivered data model enhancements for committee sessions—attaching data entries and results to specific sessions, adding a voters count at the session level, and introducing a flowchart of session state transitions. Additionally, the UI and API for managing committee sessions were enhanced, including frontend components to view status/details and a new endpoint to change session status. While there were no standalone bug-fix commits, dependency refreshes address known vulnerabilities and stability risks. Collectively, these changes improve data integrity, governance transparency, and operational efficiency.
7 Commits • 3 Features
Jul 1, 2025July 2025 highlights for kiesraad/abacus focused on strengthening security and reliability via dependency management, and on expanding data modeling and governance capabilities for committee sessions. Key work included backend dependency updates to the latest npm and cargo versions, improving security, performance, and stability without altering application logic. I also delivered data model enhancements for committee sessions—attaching data entries and results to specific sessions, adding a voters count at the session level, and introducing a flowchart of session state transitions. Additionally, the UI and API for managing committee sessions were enhanced, including frontend components to view status/details and a new endpoint to change session status. While there were no standalone bug-fix commits, dependency refreshes address known vulnerabilities and stability risks. Collectively, these changes improve data integrity, governance transparency, and operational efficiency.
July 2025
June 2025
11 Commits • 5 Features
Jun 1, 2025June 2025 monthly summary for kiesraad/abacus focused on delivering role-aware feedback flows, modernizing backend dependencies and configuration, and expanding data-entry and committee session capabilities. The work enhances data integrity, user clarity, and end-to-end processes for coordinators and typists, while improving testing coverage and maintainability.
June 2025
11 Commits • 5 Features
Jun 1, 2025June 2025 monthly summary for kiesraad/abacus focused on delivering role-aware feedback flows, modernizing backend dependencies and configuration, and expanding data-entry and committee session capabilities. The work enhances data integrity, user clarity, and end-to-end processes for coordinators and typists, while improving testing coverage and maintainability.
May 2025
8 Commits • 3 Features
May 1, 2025May 2025 (kiesraad/abacus) delivered substantial reliability, UX, and validation improvements focused on data integrity and issue resolution efficiency. Key capabilities were enhanced for multi-entry workflows, data-diffing between first and second entries, and robust authentication testing. The team also improved error guidance and messaging for edge cases such as zero polling stations and first-entry errors, supported by expanded test coverage (unit and end-to-end). These changes reduce data entry errors, speed up resolution of discrepancies, and strengthen overall system reliability for critical election data workflows.
8 Commits • 3 Features
May 1, 2025May 2025 (kiesraad/abacus) delivered substantial reliability, UX, and validation improvements focused on data integrity and issue resolution efficiency. Key capabilities were enhanced for multi-entry workflows, data-diffing between first and second entries, and robust authentication testing. The team also improved error guidance and messaging for edge cases such as zero polling stations and first-entry errors, supported by expanded test coverage (unit and end-to-end). These changes reduce data entry errors, speed up resolution of discrepancies, and strengthen overall system reliability for critical election data workflows.
May 2025
April 2025
19 Commits • 4 Features
Apr 1, 2025April 2025 (2025-04): Delivered a focused set of frontend and data-layer improvements aimed at increasing maintainability, reliability, and speed of future delivery. Major frontend refactor restructured and centralized code under frontend/src/features, moved core app files to src/app, and consolidated utilities, hooks, and types. Data Entry workflows were clarified through restructuring of page objects and forms and renaming data_entry_home to reduce ambiguity. Election Apportionment enhancements improved seat assignment logic, added ZeroVotesCast error handling, and expanded tests for edge cases with new variants and results display improvements. User Management improvements refined password validation messaging during updates. All efforts were supported by broader cleanup of legacy paths, centralized API error handling, and expanded test coverage to reduce regressions and safeguard critical flows.
April 2025
19 Commits • 4 Features
Apr 1, 2025April 2025 (2025-04): Delivered a focused set of frontend and data-layer improvements aimed at increasing maintainability, reliability, and speed of future delivery. Major frontend refactor restructured and centralized code under frontend/src/features, moved core app files to src/app, and consolidated utilities, hooks, and types. Data Entry workflows were clarified through restructuring of page objects and forms and renaming data_entry_home to reduce ambiguity. Election Apportionment enhancements improved seat assignment logic, added ZeroVotesCast error handling, and expanded tests for edge cases with new variants and results display improvements. User Management improvements refined password validation messaging during updates. All efforts were supported by broader cleanup of legacy paths, centralized API error handling, and expanded test coverage to reduce regressions and safeguard critical flows.
March 2025
6 Commits • 1 Features
Mar 1, 2025March 2025 summary for kiesraad/abacus: Delivered a Kieswet-aligned seat_assignment system and reinforced apportionment robustness, delivering business value through compliant, reliable seat allocation and a maintainable codebase.
6 Commits • 1 Features
Mar 1, 2025March 2025 summary for kiesraad/abacus: Delivered a Kieswet-aligned seat_assignment system and reinforced apportionment robustness, delivering business value through compliant, reliable seat allocation and a maintainable codebase.
March 2025
February 2025
10 Commits • 2 Features
Feb 1, 2025February 2025 monthly summary for kiesraad/abacus focused on delivering key election apportionment capabilities, refining UI/UX, and strengthening test and data integrity.
February 2025
10 Commits • 2 Features
Feb 1, 2025February 2025 monthly summary for kiesraad/abacus focused on delivering key election apportionment capabilities, refining UI/UX, and strengthening test and data integrity.
January 2025
7 Commits • 3 Features
Jan 1, 2025January 2025: Focused on delivering core election analytics features, UI polish for polling stations, robustness improvements in input handling, and codebase cleanup. Notable business impact includes improved UI responsiveness across devices, a scalable apportionment engine with API exposure, and more reliable data requests for API endpoints.
7 Commits • 3 Features
Jan 1, 2025January 2025: Focused on delivering core election analytics features, UI polish for polling stations, robustness improvements in input handling, and codebase cleanup. Notable business impact includes improved UI responsiveness across devices, a scalable apportionment engine with API exposure, and more reliable data requests for API endpoints.
January 2025
December 2024
7 Commits • 5 Features
Dec 1, 2024December 2024 for kiesraad/abacus delivered targeted UI/UX refinements, data-entry improvements, and maintainability work that drives faster, more accurate data management and clearer election data workflows. The month focused on simplifying navigation, enhancing data-entry feedback, improving localization, and tightening data integrity checks, while also polishing documentation and CI/CD processes to bolster reliability and onboarding.
December 2024
7 Commits • 5 Features
Dec 1, 2024December 2024 for kiesraad/abacus delivered targeted UI/UX refinements, data-entry improvements, and maintainability work that drives faster, more accurate data management and clearer election data workflows. The month focused on simplifying navigation, enhancing data-entry feedback, improving localization, and tightening data integrity checks, while also polishing documentation and CI/CD processes to bolster reliability and onboarding.
November 2024
9 Commits • 4 Features
Nov 1, 2024November 2024 delivered a polished UI, stronger data governance, and security improvements for kiesraad/abacus. Key work includes a UI overhaul with a cohesive AppLayout and branding updates, the introduction of ElectionStatus for progress visibility, and auditing timestamps to enable reliable data tracking. Critical bug fixes improved form validation and i18n correctness, while npm audit fixes addressed vulnerabilities. These changes enhance user experience, governance, and security, enabling faster reporting and auditable workflows.
9 Commits • 4 Features
Nov 1, 2024November 2024 delivered a polished UI, stronger data governance, and security improvements for kiesraad/abacus. Key work includes a UI overhaul with a cohesive AppLayout and branding updates, the introduction of ElectionStatus for progress visibility, and auditing timestamps to enable reliable data tracking. Critical bug fixes improved form validation and i18n correctness, while npm audit fixes addressed vulnerabilities. These changes enhance user experience, governance, and security, enabling faster reporting and auditable workflows.
November 2024
October 2024
5 Commits • 2 Features
Oct 1, 2024October 2024: Key features delivered to improve election status visibility and maintainability, along with docs/tooling updates. Business value: increased transparency of election status, robust support for new states, and improved developer experience. Highlights include a new Election Status Page progress section, refactored polling station status logic for additional states, improved data-entry status UI with clearer warnings, and a UI polish that shows a green checkmark for accepted warnings. Also updated documentation and migrated a docs frontend file from TypeScript to JavaScript.
October 2024
5 Commits • 2 Features
Oct 1, 2024October 2024: Key features delivered to improve election status visibility and maintainability, along with docs/tooling updates. Business value: increased transparency of election status, robust support for new states, and improved developer experience. Highlights include a new Election Status Page progress section, refactored polling station status logic for additional states, improved data-entry status UI with clearer warnings, and a UI polish that shows a green checkmark for accepted warnings. Also updated documentation and migrated a docs frontend file from TypeScript to JavaScript.
Activity
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Quality Metrics
Correctness92.0%
Maintainability87.6%
Architecture86.2%
Performance84.6%
AI Usage24.6%
Skills & Technologies
Programming Languages
CSSDockerfileHTMLJSONJavaScriptMarkdownRustSQLSVGShell
Technical Skills
API DesignAPI DevelopmentAPI IntegrationAPI designAPI developmentAlgorithm ImplementationAlgorithm RefactoringAuthenticationAxumBackend DevelopmentCI/CDCSSCSS ModulesCargoCode Clarity
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