EXCEEDS logo
Exceeds
manu johnson

PROFILE

Manu Johnson

Over a 14-month period, contributed to the nammayatri/nammayatri repository by designing and delivering backend features that enhanced journey planning, feedback collection, and operational analytics. Leveraging Haskell, SQL, and API development skills, implemented configurable APIs, robust data models, and caching strategies to improve performance and scalability. Introduced location-aware configurations, advanced filtering, and notification systems to support business workflows such as airport ride subscriptions and driver alerts. Focused on maintainable, traceable code with commit-driven development, the work addressed both user-facing and operational needs, including internationalization, observability, and frontend stability, resulting in a more reliable and adaptable mobility platform.

Overall Statistics

Feature vs Bugs

88%Features

Repository Contributions

30Total
Bugs
3
Commits
30
Features
22
Lines of code
1,446
Activity Months14

Work History

June 2026

1 Commits • 1 Features

Jun 1, 2026

June 2026: Delivered a new configuration to customize service tier ordering for specific locations within the rider app in nammayatri/nammayatri. This feature supports location-based optimization of tier routing, improving rider experience and operational flexibility. The work was implemented with a config-driven pattern and a dedicated code path to enable rapid adjustments without code changes, positioning the team for faster experimentation and rollouts. Commit reference is tracked for traceability.

May 2026

2 Commits • 2 Features

May 1, 2026

Month 2026-05 focused on delivering caching-driven performance improvements across core services to reduce data transfer and improve client responsiveness. The work emphasizes clear API caching semantics and efficient resource validation for better scalability and user experience.

April 2026

3 Commits • 2 Features

Apr 1, 2026

Monthly work summary for 2026-04 focused on delivering features in nammayatri/nammayatri, fixing critical bugs, and laying groundwork for improved driver communications and airport ride subscriptions. Emphasis on business value: improved driver communication, accurate billing for airport rides, scalable data models, and maintainable refactors.

March 2026

1 Commits • 1 Features

Mar 1, 2026

February 2026-03 Monthly Summary for nammayatri/nammayatri: Implemented a new queue control capability for Special Locations by introducing an isQueueEnabled flag and updating the associated data structures and logic. This enables per-location queue enable/disable behavior, providing operational flexibility and improved handling of special-location workflows. Changes are captured in the commit ac5186a154fb32862a671be63c4d2f88617a7f53 with the message: "enhc: queeEnabled flag in the specialLoction" (typos in the commit text).

February 2026

2 Commits • 1 Features

Feb 1, 2026

February 2026 monthly summary focusing on delivering enhancements to Special Location Gates metadata in nammayatri/nammayatri, enabling richer gate information for merchants' special locations. Implemented gate tags and walk descriptions, updated the data model and storage, setting groundwork for improved discovery, filtering, and analytics. No major bugs reported this month; two feature commits completed across the repository.

June 2025

1 Commits

Jun 1, 2025

June 2025 monthly summary for nammayatri/nammayatri. Focused on stabilizing the NammaSafetyScreen hybrid flow by implementing robust back-press handling and payload validation to ensure safe navigation during safety-critical steps. Delivered a targeted fix to prevent premature termination and ensure rideConfirmed flows continue, improving reliability in critical user journeys.

May 2025

1 Commits • 1 Features

May 1, 2025

For May 2025, the focus was on enhancing FRFS tracking observability in the nammayatri/nammayatri repository to improve debugging and reliability. Delivered detailed debug logs across the FRFS tracking flow, including quote retrieval, rider location, and vehicle waypoint data, enabling faster root-cause analysis and issue reproduction. No major bugs fixed this month; changes are instrumentation and observability improvements. This work supports faster issue resolution, better operational visibility, and improved customer experience through more reliable tracking.

April 2025

2 Commits • 2 Features

Apr 1, 2025

April 2025 monthly summary for nammayatri/nammayatri. Focused on improving transit planning accuracy and pricing transparency. Delivered and stabilized two core capabilities in the repository: - Next Stop Determination for Multimodal Transit: refactored stop lookup, polyline decoding, and waypoint calculations for metro/subway lines to reliably identify the next stop based on vehicle position and route data. Targeted fix deployed under commit 56644b842f9adae79128daf164dba2fdb9f0ff06 (FIX : multimodal nextStop for metro). - Fare Estimation: Min/Max Fare Fields in JourneyLeg: extended the JourneyLeg data structure to include estimated min/max fares and updated getJourneys to surface these estimates, enabling clearer pricing in journey results. Commit c59a48c266ad2462bde24bf7a50974f093a97f2e (fares in journeyLeg).

March 2025

4 Commits • 3 Features

Mar 1, 2025

March 2025 monthly summary for nammayatri/nammayatri: Focused on delivering data-rich features, improving feedback flows, and stabilizing route responses to drive improved customer experience and operational efficiency.

February 2025

2 Commits • 2 Features

Feb 1, 2025

February 2025 — nammayatri/nammayatri: Focused on targeted merchant support routing and richer journey feedback analytics. Delivered merchant-type routing in BottomDrawerListAC with targeted support channels (NAMMAYATRI, YATRI, YATRISATHI) including temporary WhatsApp logic, and introduced a GET JourneyEndFeedback API along with data model enhancements to store per-leg travel mode for deeper journey analytics. These changes streamline merchant support, improve channel effectiveness, and enable data-driven improvements across the customer journey.

January 2025

1 Commits • 1 Features

Jan 1, 2025

January 2025 monthly summary: Implemented Journey Feedback Collection API for nammayatri, enabling ratings, comments, and mode-specific feedback. Delivered new endpoint, data models, updated API specs, domain types, and storage schemas, plus the feedback submission flow. This work enhances user feedback capture, supports analytics, and informs product decisions. No critical bugs reported this month; groundwork laid for downstream analytics and personalization. Commit referenced: a3ca9b16986417254a08cba5f6fb951f3e7ecbbb.

December 2024

3 Commits • 1 Features

Dec 1, 2024

December 2024 — Delivered Booking List Filtering Enhancements for nammayatri/nammayatri, enabling date-range filtering, multi-status filtering, and millisecond-based date parameters with UTC conversion. Implemented robustness fixes for time-related thresholds and durations. Fixed date-parameter handling for the My Rides endpoint. Result: more accurate, faster booking filtering, improved cross-time-zone reporting, and reduced support overhead. Technologies/skills: Backend API design, date/time parameter parsing, UTC normalization, multi-filter orchestration, commit-driven traceability.

November 2024

5 Commits • 3 Features

Nov 1, 2024

November 2024 performance summary: Delivered targeted map-service enhancements and a dependency upgrade across shared-kernel and nammayatri repos. Achievements include a bug fix that corrects France country-code mapping in Google Maps API results; added configurable autocomplete parameters for map services; introduced per-country autocomplete configuration and mock testing support via SQL migrations; and upgraded the shared-kernel Prometheus Haskell dependency for stability and potential feature improvements. These changes improve location search relevance for users, enable flexible localization, support testing parity across environments, and reduce technical risk.

October 2024

2 Commits • 2 Features

Oct 1, 2024

Month: 2024-10 — Delivered targeted enhancements in regional mapping and dependency upgrades across two repositories. The work improved regional data accuracy for Netherlands under France configuration and ensured alignment with the latest shared kernel, boosting stability and reproducibility.

Activity

Loading activity data...

Quality Metrics

Correctness84.4%
Maintainability83.4%
Architecture81.0%
Performance78.0%
AI Usage25.4%

Skills & Technologies

Programming Languages

DhallHaskellNixPurescriptSQLYAML

Technical Skills

API DesignAPI DevelopmentAPI IntegrationAPI designAPI developmentBackend DevelopmentConfiguration ManagementData ModelingDatabase ManagementDatabase QueryingDatabase Schema DesignDependency ManagementFrontend DevelopmentHaskellHaskell Programming

Repositories Contributed To

2 repos

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

nammayatri/nammayatri

Oct 2024 Jun 2026
14 Months active

Languages Used

NixDhallHaskellSQLYAMLPurescript

Technical Skills

Backend DevelopmentDependency ManagementConfiguration ManagementDatabase ManagementAPI DevelopmentDatabase Querying

nammayatri/shared-kernel

Oct 2024 May 2026
3 Months active

Languages Used

Haskell

Technical Skills

Backend DevelopmentInternationalizationAPI IntegrationConfiguration ManagementHaskellbackend development