gocasters/rankr
Aug 2025 – Nov 2025
4 Months active
Languages Used
GoMakefileProtocol BuffersYAMLShellSQL
Technical Skills
API DevelopmentBackend DevelopmentCI/CDCLI DevelopmentCode OrganizationConfiguration Management
Mohammad Reza Javid
PROFILE
Mohammad Reza Javid
Worked on the gocasters/rankr repository to design and implement a real-time leaderboard scoring service using Go, PostgreSQL, and Redis, leveraging event-driven architecture for low-latency updates and robust data persistence. Integrated technologies such as NATS JetStream, Watermill, and gRPC to enable asynchronous event processing, reliable messaging, and scalable microservices. Enhanced system reliability with features like dead-letter queues, snapshot scheduling, and idempotency checks, while improving observability through OpenTelemetry tracing and structured logging. Refactored CI/CD pipelines, containerized deployments with Docker, and streamlined configuration management, resulting in improved maintainability, deployment flexibility, and faster onboarding for contributors and operational teams.
Overall Statistics
Feature vs Bugs
89%Features
Repository Contributions
13Total
Bugs
1
Commits
13
Features
8
Lines of code
15,376
Activity Months4
Your Network
3 peopleShared Repositories
3
Work History
November 2025
1 Commits • 1 Features
Nov 1, 2025November 2025 for gocasters/rankr focused on delivering reliable daily leaderboard analytics via a new Leaderboard Snapshot Service, with daily snapshots and improved resilience. Key work included implementing the snapshot service layer, refactoring SQL migrations and shared PostgreSQL configs, enhancing gRPC error handling to return empty pages on out-of-range offsets, and shipping developer-friendly usage examples and README for quicker adoption. Daily leaderboard support has been added and timettl bindings updated to ensure timely metrics. These changes improve data freshness, API reliability, and maintainability, enabling better decision-making and user satisfaction.
1 Commits • 1 Features
Nov 1, 2025November 2025 for gocasters/rankr focused on delivering reliable daily leaderboard analytics via a new Leaderboard Snapshot Service, with daily snapshots and improved resilience. Key work included implementing the snapshot service layer, refactoring SQL migrations and shared PostgreSQL configs, enhancing gRPC error handling to return empty pages on out-of-range offsets, and shipping developer-friendly usage examples and README for quicker adoption. Daily leaderboard support has been added and timettl bindings updated to ensure timely metrics. These changes improve data freshness, API reliability, and maintainability, enabling better decision-making and user satisfaction.
November 2025
October 2025
3 Commits • 2 Features
Oct 1, 2025Concise monthly summary for gocasters/rankr (2025-10):
October 2025
3 Commits • 2 Features
Oct 1, 2025Concise monthly summary for gocasters/rankr (2025-10):
September 2025
4 Commits • 2 Features
Sep 1, 2025September 2025 summary for gocasters/rankr: Delivered a scalable Leaderboard framework with a gRPC API, asynchronous event persistence, initial scoring logic, and telemetry; containerized deployment; improved logging reliability; and added support services (projects, VCS) to enable end-to-end leaderboard management. These efforts accelerate real-time leaderboard access, observability, and deployment automation, delivering business value with reduced ops overhead.
4 Commits • 2 Features
Sep 1, 2025September 2025 summary for gocasters/rankr: Delivered a scalable Leaderboard framework with a gRPC API, asynchronous event persistence, initial scoring logic, and telemetry; containerized deployment; improved logging reliability; and added support services (projects, VCS) to enable end-to-end leaderboard management. These efforts accelerate real-time leaderboard access, observability, and deployment automation, delivering business value with reduced ops overhead.
September 2025
August 2025
5 Commits • 3 Features
Aug 1, 2025August 2025 monthly summary for gocasters/rankr: Implemented core real-time Leaderboard Scoring Service with event-driven architecture (Watermill) backed by Redis and PostgreSQL, extended with WebSocket updates and NATS messaging for low-latency client delivery; included health endpoints and idempotency checks. Introduced configurable HTTP server with OpenTelemetry tracing, startup banner toggle, and port customization to improve observability and deployment flexibility. Refactored CI tooling and codebase (Go version pinning, linting updates, and singular package naming) to boost consistency, maintainability, and developer velocity. Overall impact includes improved real-time user engagement, reliability, observability, and faster onboarding for new contributors.
August 2025
5 Commits • 3 Features
Aug 1, 2025August 2025 monthly summary for gocasters/rankr: Implemented core real-time Leaderboard Scoring Service with event-driven architecture (Watermill) backed by Redis and PostgreSQL, extended with WebSocket updates and NATS messaging for low-latency client delivery; included health endpoints and idempotency checks. Introduced configurable HTTP server with OpenTelemetry tracing, startup banner toggle, and port customization to improve observability and deployment flexibility. Refactored CI tooling and codebase (Go version pinning, linting updates, and singular package naming) to boost consistency, maintainability, and developer velocity. Overall impact includes improved real-time user engagement, reliability, observability, and faster onboarding for new contributors.
Activity
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Quality Metrics
Correctness88.4%
Maintainability83.2%
Architecture85.4%
Performance80.0%
AI Usage40.0%
Skills & Technologies
Programming Languages
GoMakefileProtocol BuffersSQLShellYAML
Technical Skills
API DevelopmentAsynchronous ProcessingBackend DevelopmentBug FixingCI/CDCLI DevelopmentCode OrganizationConfiguration ManagementDatabase ManagementDatabase PersistenceDependency ManagementDevOpsDistributed SystemsDockerDocker Compose
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline