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Mariana R. Santos

PROFILE

Mariana R. Santos

Over the past year, Marius Rica built and enhanced robotic fleet management features for the equinor/flotilla repository, focusing on automated mission scheduling, real-time inspection data, and robust mapping integration. He applied technologies such as C#, React, and TypeScript to deliver end-to-end workflows, including calendar-based scheduling, intervention handling, and live mission dashboards. Marius refactored backend services using Entity Framework Core and improved frontend reliability with React Query and Styled Components. His work addressed operational pain points by streamlining data flows, strengthening authentication, and modernizing CI/CD pipelines, resulting in a maintainable, production-ready platform for scalable robotic operations.

Overall Statistics

Feature vs Bugs

80%Features

Repository Contributions

130Total
Bugs
15
Commits
130
Features
61
Lines of code
24,524
Activity Months12

Work History

September 2025

14 Commits • 5 Features

Sep 1, 2025

September 2025 performance highlights: delivered production-ready Pointilla-based mapping across the Flotilla stack (backend and frontend), migrated MissionDefinition to remove map metadata, and performed targeted dependency upgrades to improve security and stability. This work enhances map reliability for operators, reduces maintenance risk from outdated libraries, and accelerates future feature delivery. Core business value includes more reliable geospatial capabilities, improved security posture, and streamlined maintenance overhead.

August 2025

11 Commits • 6 Features

Aug 1, 2025

August 2025 performance summary: Delivered critical robotic operations enhancements, analytics, and security/CI improvements across flotilla and isar. The work focused on reducing manual interventions, increasing operational visibility, and strengthening system reliability and security. Key outcomes include automated intervention workflows, real-time performance dashboards, granular data ingestion, and a hardened CI pipeline. 1) Key features delivered: - Robot Intervention Release and Status Enhancements: API to release intervention-needed state, updates to robot status model, admin UI controls to resume missions, UI display of inspection area on robot page, and testing support mock. - Mission and Task Statistics Dashboard: new Statistics tab showing mission and task performance per robot with day/week/month/year aggregations and robust loading/error handling. - MQTT Topic Granularity Enhancement: added an extra wildcard level for mission and task topics to enable finer subscriptions and data ingestion. - CI Security Scanning Improvements (TruffleHog): updated tooling and CI workflow to focus on verified/unknown results and to ensure failures halt when appropriate; includes removal of the fail flag in one of the updates. - MQTT Messaging Reliability and Isar-specific enhancements: per-topic expiry intervals and MQTTv5 support to improve reliability and resource utilization. - InterventionNeeded state in Isar: introduces an InterventionNeeded state with new API endpoints, state machine logic, and telemetry payloads; updated tests to cover the new state. 2) Major bugs fixed: - Test suites updated to cover new intervention state and state-machine transitions, reducing regression risk. - CI/CD resilience improvements through TruffleHog reconfiguration and fail-flag removal, reducing false positives and improving developer velocity. 3) Overall impact and accomplishments: - Reduced mean time to remediation by enabling automated release from intervention-needed state and direct admin controls, increasing robot uptime. - Enhanced visibility into robot performance and mission success, enabling data-driven decision making across fleets. - Improved security posture and CI reliability, lowering risk from hidden vulnerabilities and CI failures. - More granular data ingestion and scalable telemetry handling via MQTT enhancements, supporting richer analytics and faster ingestion pipelines. 4) Technologies/skills demonstrated: - API design and REST endpoint exposure, plus UI integration for operational control. - State machine modeling and telemetry payload design for robust error handling. - MQTT protocol enhancements (topic granularity, expiry intervals, MQTTv5) for reliable messaging. - CI/CD improvements and security tooling (TruffleHog) with test coverage and workflow hardening. - End-to-end testing and mock-based test support for newer states and dashboards.

July 2025

29 Commits • 16 Features

Jul 1, 2025

July 2025 — flotilla developer monthly performance summary. Key features delivered: - Auto Schedule View Description: Delivered descriptive text in the auto schedule view to improve clarity and reduce user misconfigurations. - URL routing and UX enhancements: Implemented URL refreshing tests, routing improvements with tab URL changes, and notable not-found page UI improvements to boost navigation consistency. - Localization and access control: Added a missing translation string; replaced legacy accessRole checks with IsInRole to strengthen authorization and maintainability. - UI polish and consistency: Introduced global phone width styling and improved alert list UI, with enhancements to the not-found page UX. - Operational readiness: Added database migrations and improved broker log timestamps to enhance traceability and deployment readiness. Major bugs fixed: - Refreshing issues: Stabilized cross‑UI refresh behavior through a series of fixes and tests across the UI, reducing intermittent refresh failures. - Test stability and auth: Fixed failing tests and added authentication tests to improve confidence in releases. Overall impact and accomplishments: - Significantly improved user clarity, navigation reliability, and security posture, contributing to higher user adoption and reduced support overhead. - Strengthened code quality and maintainability through localization, tests, and migrations, while improving observability and deployment readiness. Technologies/skills demonstrated: - Frontend architecture and routing (URL handling, tab URLs, 404 UX) - Localization and i18n - Role-based access control (IsInRole) and auth testing - Testing discipline (test fixes, auth tests) - Database migrations and logging observability (timestamp formatting)

June 2025

6 Commits • 2 Features

Jun 1, 2025

June 2025 monthly summary for equinor/flotilla focusing on delivering business value through user-centric UI enhancements and robust data handling. The month highlighted concrete frontend deliveries, stability improvements, and maintainability gains across the fleet operations dashboard.

May 2025

7 Commits • 1 Features

May 1, 2025

May 2025: Implemented end-to-end auto-scheduling enhancements for flotilla, corrected robot readiness checks, and aligned data endpoints. Delivered significant business value through improved mission planning, reliability, and data access.

April 2025

5 Commits • 2 Features

Apr 1, 2025

April 2025 focused on delivering automated scheduling improvements, stabilizing CI workflows, and advancing security posture while maintaining data integrity. The work emphasized business value through smoother operations, reduced automation friction, and a more secure authentication stack.

March 2025

17 Commits • 7 Features

Mar 1, 2025

2025-03 Monthly Summary for equinor/flotilla focusing on business value and technical achievements. This report highlights delivered features, major bug fixes, overall impact, and technologies demonstrated relevant to performance reviews. Key features delivered: - Auto-scheduling System Improvements and Failure Notifications: improved scheduling reliability by calculating times to midnight, updated startup behavior to run immediately and then schedule daily, added enhanced logging and failure reporting, and included tests. (Commits: 76af3c21d93f1e9daa5704b65382680aa2fc3910; b510d9144a8823c278906781add15927f859a9e3; 0efd077a564ff1c5b10c668a41ce94076bcae5e4; 8a646bb4ed93d2199ad9f3da86816e7bcb4b9c71; 8f2b776a097a27a20272f41119d1348a48495498) - Robot Feature and UI Enhancements: introduced robots dashboard with robot cards, status page, responsive UI refactor, and map compass asset. (Commits: 04675df4dfd1203ce9f90264f6b20b751d09b6ec; ca4e1634eaab7652ab5071d99dc2ce3d11985237; d8e0f1ea6de42b7c61e28ff76bcfa0cd46566fa1; c12db8c279c71d46e4ce4edefd5ff476bb5cafdb) - Mission Management UI Improvements: enhanced mission scheduling dialogs, refactored mission definition page, and updated navigation; cleaned up UI with removal of inspection frequency field and related polish. (Commits: 46e1a2c081bb0f2f0eb09ddd3fbc424bcc580180; 2dd46750dae4e03773cd45966f9d4e52ccf748c2; 8f52c67eebc3c3da21286c22dd53f2d4b38d2713; a5788b3625eddfdeb5b3cb86604d93bd5e407c78) - Internationalization and Branding: added translation files to enable multilingual UI and renamed branding from IDA to SARA across codebase. (Commits: 353659f48f31fd4a6cfe61851677b282d6a0af35; 3b1c1ab545156d3eecfb700ef31c3534a9f57a70) - Info Page and Alerts UI Refresh: refactored InfoPage with new styles and improved readability; refreshed alerts list UI for better presentation and responsiveness. (Commits: a404ee9722e09bfa7dd40847ffd850f26eb9f35c; a8444d5a44abad62a38f215c087302fbaea8431a) Major bugs fixed: - Stabilized background scheduling through reliable startup behavior on pod restarts and robust fail handling; improved logging to aid troubleshooting and failure visibility. (Related commits: Run background service when pod restarts; Edit hangfire logging settings; Add auto scheduling fail banner to notify the user; Fix naming in autoscheduler) - Addressed UI/UX regressions and navigation issues in mission and robot dashboards; ensured translations loaded correctly and branding changes propagated across UI components. (Commit references as above) Overall impact and accomplishments: - Significantly improved system reliability and maintainability of the automated scheduling workflow, reducing manual interventions and improving uptime for scheduled tasks. - Delivered a cohesive, user-friendly UX for robotics operations and mission management, enabling faster task planning and execution. - Enabled broader adoption through multilingual support and consistent branding, while modernizing key Info/Alerts interfaces for better operational awareness. Technologies/skills demonstrated: - Scheduling systems, background jobs, and robust logging/monitoring (Hangfire integration and related fixes) - Frontend UI/UX improvements: responsive layouts, component refactors, and map assets - Internationalization (i18n) and branding consolidation across a large codebase - UI/UX polish and test coverage for new features - End-to-end impact alignment with business goals: reliability, usability, and faster time-to-value for operators.

February 2025

12 Commits • 7 Features

Feb 1, 2025

February 2025 performance summary for equinor/flotilla and equinor/isar: Delivered key feature work and major maintenance improvements that strengthen inspection processing, scheduling reliability, and user experience, while boosting code quality for long-term maintainability. Highlights include enabling ThermalImage inspection type support, introducing automated mission scheduling, and performing substantial backend cleanup. UI/UX refreshes with Adaptive Cards, improved mission and inspection interfaces, and a revamped navigation context enhanced usability. A critical bug in the Get inspection endpoint was fixed, and targeted code quality improvements were implemented to improve readability and robustness.

January 2025

9 Commits • 6 Features

Jan 1, 2025

January 2025 monthly summary for development across flotilla, isar, and isar-robot. Focused on delivering reliable mission data presentation, real-time inspection updates, gas measurement capabilities, and scheduling robustness. These efforts improve data reliability, enable faster decision-making in the field, and expand automation capabilities for robotic inspections.

December 2024

6 Commits • 4 Features

Dec 1, 2024

December 2024 Monthly Summary: Focused on improving observability, frontend reliability, and user-facing clarity across two repos (equinor/isar and equinor/flotilla). Key features and stability improvements were delivered, with a deliberate evaluation of authentication approaches for IDA API calls and improved data access reliability.

November 2024

2 Commits • 2 Features

Nov 1, 2024

Month: 2024-11. This period focused on delivering critical enhancements to mission visibility and operational diagnostics in equinor/flotilla. Key features delivered improved mission monitoring and reduced noise in normal operation. The work was centered on two capabilities: (1) View Inspection Images on Mission Page, enabling viewing inspection images and reports directly within a mission context through new backend endpoints and frontend components; (2) Reduce log verbosity for field setting operations by tightening log levels in MissionRunService and RobotService to Debug, lowering noise during routine activity while preserving essential diagnostics. These changes enhance decision-making, facilitate faster troubleshooting, and maintain system reliability.

October 2024

12 Commits • 3 Features

Oct 1, 2024

October 2024 monthly summary for equinor/flotilla focused on delivering cross-cutting platform improvements, UI polish, and a terminology overhaul to standardize docking terms across backend and frontend. Key activities spanned backend/frontend code migrations, UI enhancements for mission visibility, and accessibility/i18n improvements for maps. The work improved consistency, reduced ambiguity in terminology, boosted user experience, and laid groundwork for scalable fleet operations.

Activity

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Quality Metrics

Correctness87.2%
Maintainability87.8%
Architecture82.8%
Performance81.4%
AI Usage20.6%

Skills & Technologies

Programming Languages

C#CSSConfigurationHTMLJSONJavaScriptMarkdownPythonSQLShell

Technical Skills

.NETAPI DesignAPI DevelopmentAPI IntegrationAPI ServicesAPI TestingASP.NET CoreAdaptive CardsAlertingAuthentication and AuthorizationAutomated TestingAzure Blob StorageBackend DevelopmentBackground ServicesC#

Repositories Contributed To

3 repos

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

equinor/flotilla

Oct 2024 Sep 2025
12 Months active

Languages Used

C#CSSJavaScriptMarkdownTypeScripttsxJSONSQL

Technical Skills

API DevelopmentAPI TestingBackend DevelopmentContext APIDatabase ManagementDatabase Migration

equinor/isar

Dec 2024 Sep 2025
5 Months active

Languages Used

PythonJavaScript

Technical Skills

Error HandlingLoggingState MachinesAPI DevelopmentBackend DevelopmentRobotics Integration

equinor/isar-robot

Jan 2025 Sep 2025
2 Months active

Languages Used

PythonTOMLTexttext

Technical Skills

Embedded SystemsPython DevelopmentRoboticsDependency Management

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