
Evgeni Pirianov developed and maintained the FuelLabs/data-systems repository over six months, delivering a unified REST API for blockchain ledger data with robust querying, authentication, and observability features. He architected modular Rust services using Actix Web and PostgreSQL, implementing API key authentication, rate limiting, and centralized telemetry to enhance security and monitoring. His work included containerized local development with Docker and Kubernetes, automated CI/CD pipelines, and comprehensive API documentation via OpenAPI and Swagger UI. By refactoring codebases, optimizing database queries, and introducing load testing tools, Evgeni improved system reliability, developer experience, and scalability, demonstrating strong backend engineering and DevOps expertise.

March 2025 monthly summary for FuelLabs/data-systems: Delivered a unified REST API for ledger data with enhanced querying, expanded API coverage, improved developer experience, and a leaner telemetry footprint. The work delivered stronger data accessibility, better security posture, and faster integration with robust testing and documentation.
March 2025 monthly summary for FuelLabs/data-systems: Delivered a unified REST API for ledger data with enhanced querying, expanded API coverage, improved developer experience, and a leaner telemetry footprint. The work delivered stronger data accessibility, better security posture, and faster integration with robust testing and documentation.
February 2025 — FuelLabs/data-systems delivered a solid API service foundation with security enhancements and expanded data access capabilities, enabling scalable, secure access to blockchain data and paving the way for increased usage and analytics.
February 2025 — FuelLabs/data-systems delivered a solid API service foundation with security enhancements and expanded data access capabilities, enabling scalable, secure access to blockchain data and paving the way for increased usage and analytics.
January 2025 (FuelLabs/data-systems) – Delivered key features, bug fixes, and improvements across observability, security, performance testing, and build stability. Major deliverables include a centralized web-utils crate for scaffolding, telemetry, and authentication middleware; API key authentication for Fuel Streams; a new load-testing and benchmarking framework; and stabilized dependencies to reduce release risk.
January 2025 (FuelLabs/data-systems) – Delivered key features, bug fixes, and improvements across observability, security, performance testing, and build stability. Major deliverables include a centralized web-utils crate for scaffolding, telemetry, and authentication middleware; API key authentication for Fuel Streams; a new load-testing and benchmarking framework; and stabilized dependencies to reduce release risk.
December 2024 — FuelLabs/data-systems: reliability, scalability, and security improvements across telemetry, data handling, and dependencies. Key features delivered include standardizing telemetry port/env vars for the publisher, NATS URL centralization with FuelNetwork enum and S3/Webserver integration for historical data, a new load-testing tool for Fuel Streams, and updates to core and development dependencies across Rust crates. These changes enhance data collection reliability, observability, storage of historical data, performance measurement capabilities, and security/stability.
December 2024 — FuelLabs/data-systems: reliability, scalability, and security improvements across telemetry, data handling, and dependencies. Key features delivered include standardizing telemetry port/env vars for the publisher, NATS URL centralization with FuelNetwork enum and S3/Webserver integration for historical data, a new load-testing tool for Fuel Streams, and updates to core and development dependencies across Rust crates. These changes enhance data collection reliability, observability, storage of historical data, performance measurement capabilities, and security/stability.
November 2024 – FuelLabs/data-systems: Delivered major features for environment management, data-retention, modular code structure, and robust local dev infrastructure, plus a bug fix in profiling path. These changes strengthen data hygiene, developer productivity, and local development parity with production.
November 2024 – FuelLabs/data-systems: Delivered major features for environment management, data-retention, modular code structure, and robust local dev infrastructure, plus a bug fix in profiling path. These changes strengthen data hygiene, developer productivity, and local development parity with production.
October 2024 — FuelLabs/data-systems: Delivered two core enhancements focused on security/maintainability and observability. Key outcomes include dependency upgrades across the data-systems stack and Elasticsearch-based logging for the fuel-streams-publisher, enabling improved monitoring and faster issue resolution. These changes reduce security risk, improve compatibility, and enhance publish-time visibility across modules.
October 2024 — FuelLabs/data-systems: Delivered two core enhancements focused on security/maintainability and observability. Key outcomes include dependency upgrades across the data-systems stack and Elasticsearch-based logging for the fuel-streams-publisher, enabling improved monitoring and faster issue resolution. These changes reduce security risk, improve compatibility, and enhance publish-time visibility across modules.
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