ukama/ukama
Nov 2024 – Mar 2026
9 Months active
Languages Used
DockerfileGoJavaScriptMakefileProtoShellTypeScriptJSON
Technical Skills
API DevelopmentAPI GatewayApollo ServerBackend DevelopmentBuild SystemsConfiguration Management
Brackley cassinga
PROFILE
Brackley Cassinga
Over nine months, contributed to the ukama/ukama repository by building scalable backend systems, real-time monitoring, and embedded device control features. Developed robust node state management and centralized event-driven architectures using Go, TypeScript, and GraphQL, enabling reliable orchestration and observability across distributed environments. Enhanced billing workflows with Stripe integration and introduced user-facing email notifications, improving operational transparency and customer engagement. Delivered hardware automation through embedded C programming, implementing device drivers and safety monitoring for FEM and Victron MPPT hardware. Prioritized maintainability with code refactoring, CI/CD improvements, and comprehensive testing, resulting in a stable, extensible platform supporting both cloud and hardware integrations.
Overall Statistics
Feature vs Bugs
84%Features
Repository Contributions
25Total
Bugs
3
Commits
25
Features
16
Lines of code
53,268
Activity Months9
Your Network
3 peopleShared Repositories
3
Work History
March 2026
1 Commits • 1 Features
Mar 1, 2026March 2026: Delivered a new VE.Direct Victron MPPT driver daemon for ukama/ukama with integrated test harness and metrics collection, strengthening device control, observability, and maintainability. Implemented robust memory management fixes and checksum validation, resolved VE.Direct framing issues, and completed code refactor to improve clarity and future extensibility. Established a portable VE Direct emulator and integrated controllerd metrics into metricsd, enabling KPI-driven monitoring and faster incident response. The work lays groundwork for reliable energy-management features and better end-user visibility.
1 Commits • 1 Features
Mar 1, 2026March 2026: Delivered a new VE.Direct Victron MPPT driver daemon for ukama/ukama with integrated test harness and metrics collection, strengthening device control, observability, and maintainability. Implemented robust memory management fixes and checksum validation, resolved VE.Direct framing issues, and completed code refactor to improve clarity and future extensibility. Established a portable VE Direct emulator and integrated controllerd metrics into metricsd, enabling KPI-driven monitoring and faster incident response. The work lays groundwork for reliable energy-management features and better end-user visibility.
March 2026
August 2025
1 Commits • 1 Features
Aug 1, 2025August 2025: Delivered FEM daemon (femd) app and management API for ukama/ukama, enabling centralized control of FEM1/FEM2 hardware (GPIO and DAC) with safety monitoring via YAML configuration, temperature compensation, and safety thresholds. Exposed endpoints for status, configuration, and control to support automated workflows. No major bugs reported; focus on reliability, maintainability, and deployment readiness to accelerate hardware automation and safer operations. Technologies demonstrated include embedded hardware interfaces (GPIO/DAC), YAML-based safety configuration, RESTful API design, and commit-based traceability.
August 2025
1 Commits • 1 Features
Aug 1, 2025August 2025: Delivered FEM daemon (femd) app and management API for ukama/ukama, enabling centralized control of FEM1/FEM2 hardware (GPIO and DAC) with safety monitoring via YAML configuration, temperature compensation, and safety thresholds. Exposed endpoints for status, configuration, and control to support automated workflows. No major bugs reported; focus on reliability, maintainability, and deployment readiness to accelerate hardware automation and safer operations. Technologies demonstrated include embedded hardware interfaces (GPIO/DAC), YAML-based safety configuration, RESTful API design, and commit-based traceability.
June 2025
3 Commits • 3 Features
Jun 1, 2025June 2025 performance summary for ukama/ukama. Delivered three high-impact features with clear business value, strengthened testing, and enhanced observability. The work prioritized real-time visibility, release reliability, and granular metrics to support data-driven decision-making and faster incident response.
3 Commits • 3 Features
Jun 1, 2025June 2025 performance summary for ukama/ukama. Delivered three high-impact features with clear business value, strengthened testing, and enhanced observability. The work prioritized real-time visibility, release reliability, and granular metrics to support data-driven decision-making and faster incident response.
June 2025
May 2025
4 Commits • 2 Features
May 1, 2025May 2025 monthly summary for ukama/ukama focused on delivering reliable metrics, robust node management, and API gateway compatibility while laying groundwork for real-time data and improved observability. The month combined targeted feature work with essential fixes to boost reliability, maintainability, and business value across the platform.
May 2025
4 Commits • 2 Features
May 1, 2025May 2025 monthly summary for ukama/ukama focused on delivering reliable metrics, robust node management, and API gateway compatibility while laying groundwork for real-time data and improved observability. The month combined targeted feature work with essential fixes to boost reliability, maintainability, and business value across the platform.
March 2025
4 Commits • 1 Features
Mar 1, 2025March 2025: Delivered a major overhaul of the Site Metrics System for ukama, integrating with the DController service, REST client exporters, and Prometheus to enable robust multi-site monitoring. Implemented a KPI-focused refactor and UI improvements, with tight integration into the API gateway for secure, scalable observability.
4 Commits • 1 Features
Mar 1, 2025March 2025: Delivered a major overhaul of the Site Metrics System for ukama, integrating with the DController service, REST client exporters, and Prometheus to enable robust multi-site monitoring. Implemented a KPI-focused refactor and UI improvements, with tight integration into the API gateway for secure, scalable observability.
March 2025
February 2025
4 Commits • 3 Features
Feb 1, 2025February 2025 monthly summary for ukama/ukama focused on enhancing customer communications, billing transparency, and mailer capabilities. Implemented user-facing email notifications for SIM top-up and new subscriber onboarding, integrated a new billing report system to enable downloadable PDF invoices, and extended the mailer service to support email attachments. These changes improve onboarding experiences, boost billing accessibility, and provide richer, multipart email functionality. No major bugs were recorded in this period based on the provided data, and the implemented features position the product for scalable notifications and invoicing workflows, driving improved customer engagement and operational efficiency.
February 2025
4 Commits • 3 Features
Feb 1, 2025February 2025 monthly summary for ukama/ukama focused on enhancing customer communications, billing transparency, and mailer capabilities. Implemented user-facing email notifications for SIM top-up and new subscriber onboarding, integrated a new billing report system to enable downloadable PDF invoices, and extended the mailer service to support email attachments. These changes improve onboarding experiences, boost billing accessibility, and provide richer, multipart email functionality. No major bugs were recorded in this period based on the provided data, and the implemented features position the product for scalable notifications and invoicing workflows, driving improved customer engagement and operational efficiency.
January 2025
2 Commits • 1 Features
Jan 1, 2025January 2025: Delivered end-to-end billing capability and stabilized the codebase. Implemented the Billing Page with Stripe payments integration in ukama/ukama, including billing history, current/outstanding bills, owner details, and a payment dialog; backend API integration and deployment script updates completed. Fixed build issues by removing the unused addPayment GraphQL mutation, along with linting fixes and general cleanup to improve stability.
2 Commits • 1 Features
Jan 1, 2025January 2025: Delivered end-to-end billing capability and stabilized the codebase. Implemented the Billing Page with Stripe payments integration in ukama/ukama, including billing history, current/outstanding bills, owner details, and a payment dialog; backend API integration and deployment script updates completed. Fixed build issues by removing the unused addPayment GraphQL mutation, along with linting fixes and general cleanup to improve stability.
January 2025
December 2024
3 Commits • 2 Features
Dec 1, 2024December 2024 — ukama/ukama: Focused on reliability, maintainability, and user experience. Delivered a centralized event bus for node-related events with a refactored notification service and unified event types/routing keys to improve consistency and maintainability. Stabilized the testing suite for mailer and state machine with a hotfix introducing a configurable base URL and expanded coverage for node state transitions, reducing flaky tests. Delivered Subscriber Management UI and Package Activation Improvements with console mutations for SIM package additions, UI clarity updates, and fixes for QR code display and top-up flows. Overall impact: higher system reliability, faster deployment cycles, and an enhanced end-user experience. Technologies/skills demonstrated: event-driven architecture, test automation improvements, UI/UX refinements, and configuration-driven testing.
December 2024
3 Commits • 2 Features
Dec 1, 2024December 2024 — ukama/ukama: Focused on reliability, maintainability, and user experience. Delivered a centralized event bus for node-related events with a refactored notification service and unified event types/routing keys to improve consistency and maintainability. Stabilized the testing suite for mailer and state machine with a hotfix introducing a configurable base URL and expanded coverage for node state transitions, reducing flaky tests. Delivered Subscriber Management UI and Package Activation Improvements with console mutations for SIM package additions, UI clarity updates, and fixes for QR code display and top-up flows. Overall impact: higher system reliability, faster deployment cycles, and an enhanced end-user experience. Technologies/skills demonstrated: event-driven architecture, test automation improvements, UI/UX refinements, and configuration-driven testing.
November 2024
3 Commits • 2 Features
Nov 1, 2024November 2024 focused on delivering a robust node lifecycle and configuration framework for scalable operations, and refactoring mailer configuration to environment-driven settings to reduce deploy-time friction. The work established foundational capabilities for reliable node orchestration, expanded API coverage via BFF integration, and improved deployment consistency across environments.
3 Commits • 2 Features
Nov 1, 2024November 2024 focused on delivering a robust node lifecycle and configuration framework for scalable operations, and refactoring mailer configuration to environment-driven settings to reduce deploy-time friction. The work established foundational capabilities for reliable node orchestration, expanded API coverage via BFF integration, and improved deployment consistency across environments.
November 2024
Activity
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Quality Metrics
Correctness85.2%
Maintainability80.4%
Architecture82.8%
Performance76.8%
AI Usage38.4%
Skills & Technologies
Programming Languages
CDockerfileGoGraphQLHTMLJSONJavaScriptMakefileProtoProtocol Buffers
Technical Skills
API DevelopmentAPI GatewayAPI IntegrationAPI developmentApollo ServerBackend DevelopmentBuild SystemsC programmingCI/CDCode RefactoringComponent DevelopmentConfiguration ManagementData VisualizationDevOpsDevice Drivers
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline