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MarieseMikely

PROFILE

Mariesemikely

Mariese Mikely delivered robust backend and frontend enhancements across the GOV.UK One Login platform, focusing on reliability, security, and maintainability in repositories such as ipv-cri-address-api and ipv-cri-check-hmrc-front. She implemented environment-driven configuration, feature flagging, and automated test harnesses using Java, JavaScript, and AWS Lambda, improving deployment stability and audit data quality. Her work included refactoring integration tests, strengthening validation logic, and upgrading dependencies to address vulnerabilities. By aligning infrastructure as code with CI/CD pipelines and introducing dynamic configuration strategies, Mariese ensured consistent, secure releases and reduced operational risk, demonstrating depth in DevOps, API development, and test automation.

Overall Statistics

Feature vs Bugs

68%Features

Repository Contributions

173Total
Bugs
24
Commits
173
Features
51
Lines of code
6,464
Activity Months12

Work History

October 2025

12 Commits • 1 Features

Oct 1, 2025

Monthly summary for 2025-10 focusing on key features, bug fixes, impact, and technical achievements across four repos. Delivered reliability and maintainability improvements through environment/configuration fixes, test refinements, and data quality enhancements. Demonstrated strong collaboration across services, with measurable impact on deployment stability, test accuracy, audit data quality, and configuration hygiene.

September 2025

16 Commits • 3 Features

Sep 1, 2025

September 2025 performance summary: Focused on reliability, security, and maintainability across three services. Delivered improvements to browser test stability, modernized dependencies for security and compatibility, and advanced configuration strategies with environment vars while maintaining a rollback path for dynamic configuration using SSM where necessary. Demonstrated strong automation, testing alignment, and clean-code practices to reduce churn and accelerate future changes.

August 2025

2 Commits • 1 Features

Aug 1, 2025

August 2025 monthly summary for govuk-one-login/ipv-cri-common-lambdas focused on improving security posture in staging through key rotation enablement. Implemented Staging Key Rotation Enablement by toggling a stub configuration and setting staging to true for key management in ipv-cri-kbv-api and ipv-cri-dl-api. While no major bug fixes were recorded this month for this repository, the feature work reduces risk of stale keys and aligns staging with production security practices, enabling smoother promotion cycles.

July 2025

13 Commits • 6 Features

Jul 1, 2025

July 2025 monthly review: Delivered observability, stability, and security improvements across multiple GOV.UK One Login repos, with a focus on reducing operational risk, enabling branding adaptability, and keeping dependencies current for reliability and performance. Key outcomes: - Consolidated and clarified dashboards in observability-configuration, fixing naming for check-hmrc-cri and removing legacy state machine references to simplify configurations and bolster observability maintenance. - Removed the Abandon Step Function from ipv-cri-check-hmrc-api, along with related alarms, tests, and infrastructure definitions, reducing complexity and potential failure surfaces. - Introduced May 2025 branding readiness by enabling MAY_2025_REBRAND_ENABLED in ipv-cri-check-hmrc-front and updating accompanying docs to prepare for branding changes. - Maintained CI and frontend stability in ipv-cri-check-hmrc-front via targeted dependency updates, version bumps, and CI workflow refinements to ensure consistent builds with latest components. - Strengthened security and dependency health across the stack: bumped Powertools in ipv-cri-kbv-api; resolved a FEC-related stability issue by upgrading frontend-ui in ipv-cri-kbv-front; upgraded express-session in ipv-cri-address-front; upgraded frontend-ui to v1.3.12 and pinned in yarn.lock for ipv-cri-address-front. Overall impact: - Improved observability, reliability, and security posture with minimal user-facing changes; reduced maintenance overhead by removing deprecated components; faster, more stable builds; and alignment with branding timelines and security standards. Technologies/skills demonstrated: - AWS infrastructure and serverless components, observability tooling, feature flags, dependency management (Yarn/package.json), CI/CD workflow enhancements, security patches, and frontend UI library upgrades.

June 2025

4 Commits • 1 Features

Jun 1, 2025

June 2025 monthly summary for the IPv-Cri projects across four repos. Focused on delivering business value through security hardening, reliability improvements, and controlled branding rollout, with cross-team collaboration across API and front-end components.

May 2025

30 Commits • 8 Features

May 1, 2025

May 2025: Delivered end-to-end testing enhancements across ipv-cri-lib, ipv-cri-address-api, and ipv-crbv-api? Wait, there is ipv-cri-kbv-api, yes. The summary should avoid misnaming. I'll craft succinctly.

March 2025

16 Commits • 8 Features

Mar 1, 2025

March 2025: Delivered secure, scalable serverless enhancements and CI/CD optimizations across five repos. Key features include Node.js 22.x runtime upgrades in ipv-cri-check-hmrc-api, ipv-cri-otg-hmrc, and ipv-cri-common-lambdas; provisioned concurrency management and Lambda SnapStart optimization in ipv-cri-address-api to balance cost and improve cold-start performance; enhanced address handling tests; and security fixes via dependency updates in ipv-stubs. Major outcomes include improved security posture, lower latency, faster and more reliable deployments, and streamlined workflows through CI/CD simplifications and lint upgrades across ipv-cri-otg-hmrc and ipv-cri-common-lambdas.

February 2025

33 Commits • 7 Features

Feb 1, 2025

February 2025 focused on reliability, user experience, and validation across ipv-cri-fronts and API. Delivered graceful shutdowns and deployment stability, enhanced abandon flow UX and radio UI with accessibility improvements, strengthened identity verification localization, and robust NINO validation with expanded tests. Also progressed core tooling improvements to support ongoing code quality gates and build stability across the suite.

January 2025

16 Commits • 5 Features

Jan 1, 2025

January 2025 performance highlights across four IPv-CRI frontends, focusing on accessibility, UI polish, flow improvements, and dependency upgrades. Delivered tangible business value by enhancing accessibility for address-related flows, reducing visual clutter, and hardening the platform with up-to-date dependencies and consistent test alignment. Demonstrated strong collaboration across repos to standardize UX semantics and improve sign-in and KBV user journeys.

December 2024

10 Commits • 1 Features

Dec 1, 2024

December 2024 summary for govuk-one-login/ipv-cri-address-front: Delivered a comprehensive Address Form Improvements and Validation Overhaul for UK Building Address, focusing on UX, validation, and accessibility, with translations updates and expanded test coverage. Implemented a reusable validation helper to harmonize UK and international address forms, and enhanced Welsh localization for address-related content. Resulted in higher data quality, improved user experience, and stronger maintainability of the address input workflow across UK and non-UK scenarios.

November 2024

20 Commits • 9 Features

Nov 1, 2024

During 2024-11, delivered a coordinated set of test-harness improvements and API test enhancements across five repositories, focusing on reliability, precision, and faster feedback. Key work includes modernization of the TestResourcesClient and eventName filtering in ipv-cri-lib, enhancement of the Event API to support eventName for targeted testing, deprecation of the SQSHelper in favor of the new Test Harness, and release notes aligned with library version updates. Address API tests gained stricter event validation and TxMA checks, while infrastructure cleanup aligned dependencies and streamlined CI. A data-model fix in ipv-cri-kbv-api corrected the evidence field to an object and updated to cri-common-lib 3.6.0. HMRC front-end and API tests now support multi-name sessions with data-driven testing via a centralized testUserConfig.js, increasing coverage with minimal maintenance.

October 2024

1 Commits • 1 Features

Oct 1, 2024

October 2024 monthly summary for govuk-one-login/ipv-cri-address-api: Refactored integration tests to improve TXMA event validation for the Address API, and introduced a TXMA test harness to parse and validate TXMA event data (including device information). Updated test feature files to align with the new harness, expanding TXMA coverage and reducing risk in production TXMA event handling.

Activity

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Quality Metrics

Correctness90.0%
Maintainability90.4%
Architecture86.6%
Performance83.6%
AI Usage20.8%

Skills & Technologies

Programming Languages

GherkinGradleGroovyHTMLJSONJavaJavaScriptMarkdownN/ANunjucks

Technical Skills

API DevelopmentAPI Gateway TestingAPI IntegrationAPI Integration TestingAPI TestingAWSAWS CloudFormationAWS LambdaAccessibilityBDDBackend DevelopmentBehavior Driven DevelopmentBehavior Driven Development (BDD)Browser TestingBuild Automation

Repositories Contributed To

12 repos

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

govuk-one-login/ipv-cri-address-api

Oct 2024 Oct 2025
7 Months active

Languages Used

GroovyJavaGherkinGradleYAMLJSONTOMLyaml

Technical Skills

API TestingCucumberIntegration TestingJavaBuild ConfigurationCI/CD

govuk-one-login/ipv-cri-check-hmrc-front

Nov 2024 Sep 2025
6 Months active

Languages Used

JavaScriptYAMLGherkinjavascriptyamlJSONSCSSdotenv

Technical Skills

Behavior Driven Development (BDD)Front End DevelopmentFront-end DevelopmentTest AutomationDependency ManagementExpress.js

govuk-one-login/ipv-cri-address-front

Dec 2024 Jul 2025
4 Months active

Languages Used

GherkinJavaScriptNunjucksYAML

Technical Skills

AccessibilityCode RefactoringForm ValidationFront End DevelopmentFrontend DevelopmentInternationalization

govuk-one-login/ipv-cri-kbv-front

Jan 2025 Jul 2025
3 Months active

Languages Used

N/ANunjucksYAMLJavaScriptSCSSJSON

Technical Skills

Dependency ManagementFront End DevelopmentInternationalizationAccessibilityBackend DevelopmentCSS

govuk-one-login/ipv-cri-lib

Nov 2024 May 2025
2 Months active

Languages Used

GradleJavaMarkdownGroovyJavaScript

Technical Skills

API TestingBackend DevelopmentCode DeprecationCode RefactoringDocumentationJava

govuk-one-login/ipv-cri-kbv-api

Nov 2024 Oct 2025
6 Months active

Languages Used

GradleGherkinJSONJavaTypeScriptYAMLTOML

Technical Skills

Dependency ManagementBuild ConfigurationAPI TestingBehavior Driven Development (BDD)CI/CDCode Organization

govuk-one-login/ipv-cri-common-lambdas

Mar 2025 Oct 2025
3 Months active

Languages Used

N/ATypeScriptYAMLyaml

Technical Skills

AWS LambdaCI/CDDevOpsEnvironment ManagementInfrastructure as CodeNode.js

govuk-one-login/ipv-cri-check-hmrc-api

Nov 2024 Oct 2025
5 Months active

Languages Used

JavaScriptTypeScriptyamlYAML

Technical Skills

API Integration TestingAWS LambdaBackend DevelopmentDynamoDBJestNode.js

govuk-one-login/ipv-cri-otg-hmrc

Mar 2025 Jun 2025
2 Months active

Languages Used

YAMLyamlJavaScript

Technical Skills

CI/CDCloudFormationDevOpsGitHub ActionsDependency ManagementNPM

govuk-one-login/ipv-cri-common-express

Jan 2025 Jan 2025
1 Month active

Languages Used

HTMLJavaScriptNunjucks

Technical Skills

AccessibilityFrontend DevelopmentVersion Control

govuk-one-login/observability-configuration

Jul 2025 Jul 2025
1 Month active

Languages Used

yaml

Technical Skills

configuration managementrefactoring

govuk-one-login/ipv-stubs

Mar 2025 Mar 2025
1 Month active

Languages Used

Gradle

Technical Skills

Build AutomationDependency Management

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