EXCEEDS logo
Exceeds
Seri Choi

PROFILE

Seri Choi

Seri Choi engineered and maintained core backend systems for the Layr-Labs/sidecar repository, focusing on blockchain data indexing, smart contract integration, and rewards distribution. Over 14 months, Seri delivered features such as upgradeable contract management, cross-chain event tracking, and robust staking analytics, using Go, SQL, and Solidity. Their work included designing scalable APIs, optimizing database queries, and implementing migration tooling to support evolving Ethereum networks. Seri addressed reliability through comprehensive testing, observability enhancements, and CI/CD improvements. The depth of their contributions is reflected in the breadth of features shipped, the quality of code organization, and the resilience of deployed systems.

Overall Statistics

Feature vs Bugs

85%Features

Repository Contributions

148Total
Bugs
9
Commits
148
Features
52
Lines of code
175,289
Activity Months14

Work History

March 2026

8 Commits • 4 Features

Mar 1, 2026

March 2026 monthly summary focusing on feature delivery, reliability improvements, and cross-repo collaboration. Key efforts concentrated on reward system upgrades, v2.2 rollout, and release hygiene across two Layr-Labs repositories, with emphasis on business value, transparency, and readiness for mainnet deployments.

February 2026

2 Commits • 1 Features

Feb 1, 2026

February 2026 (2026-02) monthly summary for Layr-Labs/sidecar focusing on staking data query capabilities and test coverage. Delivered a targeted feature to retrieve staker data by strategy address, coupled with robust unit tests to validate delegation filters and pagination. This work directly enhances staking data accessibility, analytics, and reliability for end users and product surfaces.

January 2026

8 Commits • 4 Features

Jan 1, 2026

Month: 2026-01 — Layr-Labs/sidecar: Focused on strengthening rewards accuracy, operator lifecycle controls, and upgrade readiness. Delivered new reward mechanics, flexible deregistration windows, stake-based rewards, and cross-environment migration tooling. Resolved audit findings and anti-gaming safeguards to improve accuracy, fairness, and deployment reliability. Overall business value increased through more precise rewards, reduced edge-case refunds, and faster, safer deployments.

December 2025

11 Commits • 2 Features

Dec 1, 2025

December 2025 monthly summary for Layr-Labs/sidecar: Focused on testnet upgrade readiness and reward distribution accuracy. Consolidated testnet upgrade tooling to address Holesky deprecation, with contract migration scripts and updated testnet addresses. Implemented substantial rewards calculation enhancements—precision, fork-date configuration, simplified refund logic, new operator fields for deregistration, and max_magnitude tracking/indexing—plus extensive snapshot tests. Fixed key reliability issues in tests and queries (including max_magnitude defaults and join validation). These efforts improve testnet upgrade readiness, accuracy of rewards, and overall deployment confidence.

November 2025

12 Commits • 3 Features

Nov 1, 2025

November 2025 monthly review: Delivered critical security automation enhancements for key rotation, expanded preproduction readiness with multichain support, and modernized test configurations and documentation to align with current Ethereum testnets. Key improvements include a new GetPendingKeyRotationTimestamps API, DB migrations for key rotation, preprod Hoodi multichain support, and updated test networks/docs to reflect v3.14.0. These changes collectively reduce deployment risk, speed up rotation readiness, and improve test reliability for continued business velocity.

October 2025

8 Commits • 5 Features

Oct 1, 2025

October 2025 (2025-10) focused on expanding operator data APIs, improving incentive calculations, and strengthening withdrawals reporting in Layr-Labs/sidecar. Delivered five core features with robust validation, added pagination and performance improvements, and expanded test coverage to raise confidence in complex query paths. Business value centers on better operator governance visibility, accurate APRs, scalable stake analytics, and reliable reporting.

September 2025

20 Commits • 3 Features

Sep 1, 2025

September 2025 monthly summary for Layr-Labs/sidecar focusing on stability, upgrade readiness, and data accuracy. Delivered robust release/versioning, network mainnet upgrade migrations, enhanced APR data capabilities with CoinGecko integration, and strengthened event infrastructure and data integrity for withdrawals and rewards calculations.

August 2025

22 Commits • 8 Features

Aug 1, 2025

August 2025 – Layr-Labs/sidecar achieved meaningful progress across RPC capabilities, data access, and operational reliability. Delivered new and extended RPC surfaces to support operatorSets, claim proofs, strategy withdrawals, and related listings; implemented database schema and query improvements with pagination for scalable data retrieval; adopted EarnerToTokens model with usage cap to prevent abuse; upgraded core dependencies and versioning; enhanced observability with event and duration logs; fixed build workflows and removed unused code, improving stability and maintainability.

July 2025

14 Commits • 3 Features

Jul 1, 2025

July 2025 performance summary for Layr-Labs/sidecar focusing on multi-chain readiness, API modernization, governance contracts, and codebase hygiene. Key outcomes include an API client upgrade to Etherscan v2, cross-chain TaskMailbox event tracking with metaState synchronization, and a new certificate verification plus Release Manager contract suite, all integrated into migrations. Concurrently, migrations/config handling were streamlined and test stability improved to reduce production risk.

June 2025

4 Commits • 1 Features

Jun 1, 2025

June 2025 monthly summary for Layr-Labs/sidecar: Delivered key features to improve testnet deployment and maintainability, fixed critical reliability bugs, and demonstrated strong technical execution with contract migration improvements, ABI centralization, and database connection reliability. Highlights include Sepolia deployment migration improvements and ABI consolidation; removal of incorrect timing/logging metrics from RunForBlockBatch to reduce misreporting and noise; PostgreSQL connection reliability improvements by consistently applying the schema search_path for non-default schemas; and maintenance enhancements enabling easier future migrations and clearer network-specific configurations.

May 2025

15 Commits • 9 Features

May 1, 2025

May 2025 monthly summary for Layr-Labs/sidecar: Delivered substantial data integrity, observability, and analytics capabilities with robust reorg handling, real-time block indexing, and enhanced indexing pipelines. Implemented transactional cleanup for corrupted states, expanded gas and transaction data coverage, and improved indexing efficiency through deduplication and flexible backfilling. Strengthened deployment and operational quality with observability improvements and CI/CD hygiene, enabling faster troubleshooting and scalable growth.

April 2025

11 Commits • 5 Features

Apr 1, 2025

April 2025 highlights for Layr-Labs/sidecar: Delivered core Ethereum logs and data processing enhancements to improve observability, throughput, and data completeness; implemented targeted backfill with address-based fetching, parallelization, and chunking; introduced daily rewards calculation controlled by a configuration flag to ensure once-per-day processing; enhanced QueuedStrategyWithdrawal with metadata and upgraded protocol-apis to v1.11.0 to support richer withdrawal data; completed a codebase refactor moving logger and metrics to pkg to improve modularity and maintainability; fixed a critical bug in the Slashing data service initialization to ensure proper operation. Overall, these changes increase data visibility, processing throughput, reliability, and code quality, delivering tangible business value through faster analytics, more accurate rewards, and a more scalable codebase.

March 2025

7 Commits • 2 Features

Mar 1, 2025

March 2025 Monthly Summary for Layr-Labs/sidecar: - Implemented centralized contract loading and management via gRPC with new LoadContract/LoadContracts endpoints and a ContractManager, tightly integrated with contractStore and RpcServer. Included robust behavior for propagating to the primary and added tests to ensure reliability. - Refactored Fetcher configuration by introducing a dedicated FetcherConfig struct to isolate Fetcher settings from the broader app config, and updated flag propagation (UseGetBlockReceipts) accordingly. - Expanded test coverage for ContractManager to validate loading, management, and RpcServer/contractStore interactions. - Maintenance and stability improvements: removed an unused metricsSink in ContractManager to simplify runtime metrics and reduce noise. This work improves contract loading reliability, configurability, and testability, delivering measurable business value through faster, more predictable contract operations and easier future maintenance.

February 2025

6 Commits • 2 Features

Feb 1, 2025

February 2025 monthly summary for Layr-Labs/sidecar focusing on delivering upgradeability-aware contract management and a batch-loading CLI, with improvements to ABI fetching, Etherscan integration, and testing to support scalable contract onboarding.

Activity

Loading activity data...

Quality Metrics

Correctness91.2%
Maintainability88.0%
Architecture88.4%
Performance84.2%
AI Usage22.0%

Skills & Technologies

Programming Languages

GoJSONJavaScriptMarkdownPDFSQLSolidityTypeScriptYAML

Technical Skills

API DevelopmentAPI IntegrationAPI developmentBackend DevelopmentBlockchainBlockchain DevelopmentBlockchain MigrationBug FixingCI/CDCLI DevelopmentCode CleanupCode OrganizationCode RefactoringCodeQLConcurrency

Repositories Contributed To

2 repos

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

Layr-Labs/sidecar

Feb 2025 Mar 2026
14 Months active

Languages Used

GoJSONJavaScriptSQLYAMLSolidityTypeScriptMarkdown

Technical Skills

API IntegrationBackend DevelopmentCLI DevelopmentCode OrganizationConfiguration ManagementDatabase Management

Layr-Labs/eigenlayer-contracts

Mar 2026 Mar 2026
1 Month active

Languages Used

MarkdownPDF

Technical Skills

audit reportingblockchain technologydocumentationsmart contract developmenttechnical writing