electric-sql/electric
Nov 2024 – Mar 2026
17 Months active
Languages Used
ElixirMarkdownJavaScriptShellYAMLLuxSQLVue
Technical Skills
API DevelopmentBackend DevelopmentCaching StrategiesCode ReviewDatabase ManagementDocumentation
Oleksii Sholik
PROFILE
Oleksii Sholik
Oleksii Sholik engineered core backend systems for the electric-sql/electric repository, delivering robust features and reliability improvements across replication, telemetry, and deployment automation. He implemented streaming transaction processing and memory optimizations using Elixir and Erlang, reducing resource usage and improving throughput for large-scale data synchronization. Oleksii modernized CI/CD pipelines with Docker and GitHub Actions, automated multi-package releases, and enhanced observability through OpenTelemetry integration. His work addressed complex concurrency, database management, and error handling challenges, resulting in more stable deployments and accurate analytics. The depth of his contributions reflects a strong command of distributed systems, backend development, and continuous integration practices.
Overall Statistics
Feature vs Bugs
64%Features
Repository Contributions
164Total
Bugs
27
Commits
164
Features
48
Lines of code
49,607
Activity Months17
Your Network
33 peopleSame Organization
@sholik.dev1
Work History
March 2026
13 Commits • 4 Features
Mar 1, 2026March 2026 focused on stabilizing core data-paths, modernizing the codebase, and improving observability. Key outcomes include reliability fixes in shape/flush/WAL processing, memory and telemetry optimizations to reduce long-wait retention, dependency modernization and removal of legacy SQLite extensions, data-correctness improvements for char(n) trailing spaces, and onboarding automation via Claude integration and doc symlinks. These changes reduce crash risk, prevent WAL stalls, lower memory usage during long polls, accelerate CI/builds, and improve consistency of replication data.
13 Commits • 4 Features
Mar 1, 2026March 2026 focused on stabilizing core data-paths, modernizing the codebase, and improving observability. Key outcomes include reliability fixes in shape/flush/WAL processing, memory and telemetry optimizations to reduce long-wait retention, dependency modernization and removal of legacy SQLite extensions, data-correctness improvements for char(n) trailing spaces, and onboarding automation via Claude integration and doc symlinks. These changes reduce crash risk, prevent WAL stalls, lower memory usage during long polls, accelerate CI/builds, and improve consistency of replication data.
March 2026
February 2026
8 Commits • 2 Features
Feb 1, 2026February 2026 monthly summary for electric-sql/electric: Delivered significant architectural improvements to streaming and persistence, enhanced documentation accuracy, and hardened reliability across shape processing. Key engineering work focused on reducing memory usage for large transactions, improving commit correctness, and stabilizing edge-case flows, with measurable business impact in throughput, stability, and developer productivity.
February 2026
8 Commits • 2 Features
Feb 1, 2026February 2026 monthly summary for electric-sql/electric: Delivered significant architectural improvements to streaming and persistence, enhanced documentation accuracy, and hardened reliability across shape processing. Key engineering work focused on reducing memory usage for large transactions, improving commit correctness, and stabilizing edge-case flows, with measurable business impact in throughput, stability, and developer productivity.
January 2026
8 Commits • 2 Features
Jan 1, 2026January 2026 performance summary for electric-sql/electric focused on delivering robust deployment automation, coordinated multi-package releases, and telemetry reliability improvements. Highlights include Docker image publish automation integrated with the release workflow, a comprehensive multi-package release via changesets with a new CLI feature, and fixes to CallHome telemetry payloads accompanied by validation tests. These efforts reduced manual toil, increased release confidence, and improved data quality for analytics.
8 Commits • 2 Features
Jan 1, 2026January 2026 performance summary for electric-sql/electric focused on delivering robust deployment automation, coordinated multi-package releases, and telemetry reliability improvements. Highlights include Docker image publish automation integrated with the release workflow, a comprehensive multi-package release via changesets with a new CLI feature, and fixes to CallHome telemetry payloads accompanied by validation tests. These efforts reduced manual toil, increased release confidence, and improved data quality for analytics.
January 2026
December 2025
17 Commits • 2 Features
Dec 1, 2025Monthly summary for 2025-12 focusing on delivering telemetry improvements, reliability fixes, and CI/CD enhancements that drive business value through improved observability, uptime, and faster release cycles. Highlights include Telemetry and OpenTelemetry enhancements and reporting, stability fixes, memory management improvements, and CI/CD workflow optimizations.
December 2025
17 Commits • 2 Features
Dec 1, 2025Monthly summary for 2025-12 focusing on delivering telemetry improvements, reliability fixes, and CI/CD enhancements that drive business value through improved observability, uptime, and faster release cycles. Highlights include Telemetry and OpenTelemetry enhancements and reporting, stability fixes, memory management improvements, and CI/CD workflow optimizations.
November 2025
8 Commits • 2 Features
Nov 1, 2025November 2025 (2025-11): Focused on strengthening observability, telemetry reliability, and DevOps hygiene in electric-sql/electric. Delivered external OTEL resource attributes, migrated telemetry to a shared library, corrected metric exports, and improved runtime observability, while also tightening deployment configurations and dependencies to boost cloud readiness and developer productivity.
8 Commits • 2 Features
Nov 1, 2025November 2025 (2025-11): Focused on strengthening observability, telemetry reliability, and DevOps hygiene in electric-sql/electric. Delivered external OTEL resource attributes, migrated telemetry to a shared library, corrected metric exports, and improved runtime observability, while also tightening deployment configurations and dependencies to boost cloud readiness and developer productivity.
November 2025
October 2025
10 Commits • 3 Features
Oct 1, 2025Monthly summary for 2025-10 focused on key features delivered, major fixes, and impact for electric-sql/electric. Delivered dependency upgrades and CI improvements, memory optimizations, and autoscaling/observability enhancements that improve stability, scalability, and business value. Demonstrated strong technical execution across CI/CD, memory management, and telemetry, with concrete, deliverable changes.
October 2025
10 Commits • 3 Features
Oct 1, 2025Monthly summary for 2025-10 focused on key features delivered, major fixes, and impact for electric-sql/electric. Delivered dependency upgrades and CI improvements, memory optimizations, and autoscaling/observability enhancements that improve stability, scalability, and business value. Demonstrated strong technical execution across CI/CD, memory management, and telemetry, with concrete, deliverable changes.
September 2025
8 Commits • 2 Features
Sep 1, 2025September 2025: Delivered key performance and reliability enhancements to the Electric sync service, along with naming and error-handling improvements. Implemented ETS-based shape counting, shape cache optimizations, partitioned startup/shutdown for the DynamicConsumerSupervisor, and a configurable publication refresh to reduce unnecessary work and log noise. Renamed file storage options to align with new conventions and updated the default to FAST_FILE. Hardened error reporting for chunk index file operations and read-permission failures on user tables, and fixed CLI query parsing in the bash client. These changes improve throughput, reduce startup/shutdown times, raise observability, and enhance developer and operator productivity.
8 Commits • 2 Features
Sep 1, 2025September 2025: Delivered key performance and reliability enhancements to the Electric sync service, along with naming and error-handling improvements. Implemented ETS-based shape counting, shape cache optimizations, partitioned startup/shutdown for the DynamicConsumerSupervisor, and a configurable publication refresh to reduce unnecessary work and log noise. Renamed file storage options to align with new conventions and updated the default to FAST_FILE. Hardened error reporting for chunk index file operations and read-permission failures on user tables, and fixed CLI query parsing in the bash client. These changes improve throughput, reduce startup/shutdown times, raise observability, and enhance developer and operator productivity.
September 2025
August 2025
12 Commits • 6 Features
Aug 1, 2025August 2025 delivered security, reliability, and performance improvements across Electric with several feature enhancements and robust bug fixes. The team focused on strengthening TLS security, preventing key collisions, simplifying table publication for non-owners, and improving CI reliability and efficiency. These changes reduce operational risk, improve developer experience, and deliver measurable performance benefits in Postgres publications and test workflows.
August 2025
12 Commits • 6 Features
Aug 1, 2025August 2025 delivered security, reliability, and performance improvements across Electric with several feature enhancements and robust bug fixes. The team focused on strengthening TLS security, preventing key collisions, simplifying table publication for non-owners, and improving CI reliability and efficiency. These changes reduce operational risk, improve developer experience, and deliver measurable performance benefits in Postgres publications and test workflows.
July 2025
3 Commits • 3 Features
Jul 1, 2025July 2025 monthly summary for electric-sql/electric. Delivered three key initiatives focused on reliability, modernization, and developer experience. Enhanced database connectivity resilience with expanded error classification and retry logic, upgraded runtime environments (Elixir/Erlang/OTP) and base image to latest releases, and improved CI/CD observability with descriptive job names. These changes reduce production outages from transient connection failures, ensure compatibility with current toolchains, and accelerate pipeline troubleshooting, contributing to faster delivery and more secure, maintainable infrastructure.
3 Commits • 3 Features
Jul 1, 2025July 2025 monthly summary for electric-sql/electric. Delivered three key initiatives focused on reliability, modernization, and developer experience. Enhanced database connectivity resilience with expanded error classification and retry logic, upgraded runtime environments (Elixir/Erlang/OTP) and base image to latest releases, and improved CI/CD observability with descriptive job names. These changes reduce production outages from transient connection failures, ensure compatibility with current toolchains, and accelerate pipeline troubleshooting, contributing to faster delivery and more secure, maintainable infrastructure.
July 2025
June 2025
14 Commits • 5 Features
Jun 1, 2025June 2025 monthly summary for electric-sql/electric focused on strengthening replication reliability, security and observability, CI/CD reliability, and performance readiness. Delivered targeted features, stability improvements and dependency modernization to increase production reliability, reduce operational toil, and prepare for future Elixir/Erlang upgrades. The work established a solid foundation for scalable replication, improved diagnostics for pooled connections, and more robust CI across environments.
June 2025
14 Commits • 5 Features
Jun 1, 2025June 2025 monthly summary for electric-sql/electric focused on strengthening replication reliability, security and observability, CI/CD reliability, and performance readiness. Delivered targeted features, stability improvements and dependency modernization to increase production reliability, reduce operational toil, and prepare for future Elixir/Erlang upgrades. The work established a solid foundation for scalable replication, improved diagnostics for pooled connections, and more robust CI across environments.
May 2025
13 Commits • 3 Features
May 1, 2025May 2025 highlights: Core improvements across Electric to bolster reliability, data integrity, observability, and deployment readiness. Delivered concrete fixes and features with measurable business value, underpinned by expanded test coverage and safer deployment practices. Highlights include refactoring connection initialization/reconnection backoff and adding a resiliency test helper; ensuring replication slots are recreated when publications are recreated; gating telemetry behind a Mix target with guarded test components and conditional compilation; fixing Prometheus metric naming and routing; updating dependencies and environment configuration to improve deployment hygiene and Erlang/OTP compatibility; and standardizing issue workflows with a default type in templates. These changes reduce downtime, preserve transactional continuity, and enable safer, faster deployments.
13 Commits • 3 Features
May 1, 2025May 2025 highlights: Core improvements across Electric to bolster reliability, data integrity, observability, and deployment readiness. Delivered concrete fixes and features with measurable business value, underpinned by expanded test coverage and safer deployment practices. Highlights include refactoring connection initialization/reconnection backoff and adding a resiliency test helper; ensuring replication slots are recreated when publications are recreated; gating telemetry behind a Mix target with guarded test components and conditional compilation; fixing Prometheus metric naming and routing; updating dependencies and environment configuration to improve deployment hygiene and Erlang/OTP compatibility; and standardizing issue workflows with a default type in templates. These changes reduce downtime, preserve transactional continuity, and enable safer, faster deployments.
May 2025
April 2025
16 Commits • 4 Features
Apr 1, 2025April 2025 monthly summary for electric-sql/electric, focusing on delivering business value through more robust replication, stronger security, faster startup and clearer test environments, and improved deployment hygiene. The month emphasized increasing reliability, observability, and maintainability, with targeted fixes reducing downtime risk and better operational signals for teams and customers.
April 2025
16 Commits • 4 Features
Apr 1, 2025April 2025 monthly summary for electric-sql/electric, focusing on delivering business value through more robust replication, stronger security, faster startup and clearer test environments, and improved deployment hygiene. The month emphasized increasing reliability, observability, and maintainability, with targeted fixes reducing downtime risk and better operational signals for teams and customers.
March 2025
8 Commits • 1 Features
Mar 1, 2025March 2025 focused on reliability, observability, and API/frontend alignment in electric-sql/electric. Key initiatives included telemetry enhancements to preserve metric continuity across restarts, integration of installation_id into the OpenTelemetry resource, and making installation_id optional in telemetry reporting. Storage reliability fixes addressed correct storage_dir resolution and robust file concatenation to prevent data corruption in the sync-service. API/docs and frontend fixes reconciled OpenAPI 409 responses with tests and repaired a broken benchmarks link in the Vue frontend. Together, these changes reduce operational risk, improve traceability, and accelerate downstream integrations while maintaining code quality.
8 Commits • 1 Features
Mar 1, 2025March 2025 focused on reliability, observability, and API/frontend alignment in electric-sql/electric. Key initiatives included telemetry enhancements to preserve metric continuity across restarts, integration of installation_id into the OpenTelemetry resource, and making installation_id optional in telemetry reporting. Storage reliability fixes addressed correct storage_dir resolution and robust file concatenation to prevent data corruption in the sync-service. API/docs and frontend fixes reconciled OpenAPI 409 responses with tests and repaired a broken benchmarks link in the Vue frontend. Together, these changes reduce operational risk, improve traceability, and accelerate downstream integrations while maintaining code quality.
March 2025
February 2025
9 Commits • 1 Features
Feb 1, 2025February 2025 monthly summary for electric-sql/electric: Delivered stability- and correctness-focused improvements across telemetry, packaging, replication, and transaction handling. Key features delivered: Telemetry Monitoring Enhancements and Startup Stability, improving observability and startup reliability. Major bugs fixed: Release Packaging and Versioning Reliability; Replication Error Handling and Multi-Tenant Isolation; Database Connection Error Handling Robustness; Transaction ID and Snapshot Correctness; File Handling Integrity for External Merge Sort. Business impact: higher system reliability, safer multi-tenant operations, fewer deadlocks from connection errors, and more accurate release tracking. Technologies demonstrated: Elixir/Erlang reliability patterns, release packaging and versioning discipline, enhanced PostgreSQL transaction handling, and robust file I/O considerations for data integrity.
February 2025
9 Commits • 1 Features
Feb 1, 2025February 2025 monthly summary for electric-sql/electric: Delivered stability- and correctness-focused improvements across telemetry, packaging, replication, and transaction handling. Key features delivered: Telemetry Monitoring Enhancements and Startup Stability, improving observability and startup reliability. Major bugs fixed: Release Packaging and Versioning Reliability; Replication Error Handling and Multi-Tenant Isolation; Database Connection Error Handling Robustness; Transaction ID and Snapshot Correctness; File Handling Integrity for External Merge Sort. Business impact: higher system reliability, safer multi-tenant operations, fewer deadlocks from connection errors, and more accurate release tracking. Technologies demonstrated: Elixir/Erlang reliability patterns, release packaging and versioning discipline, enhanced PostgreSQL transaction handling, and robust file I/O considerations for data integrity.
January 2025
1 Commits • 1 Features
Jan 1, 2025January 2025 monthly summary focused on delivering robustness in transaction processing and business value through safer XID handling in the Electric SQL integration. Key change introduced Electric.Postgres.Xid to manage potential transaction ID wraparound when comparing incoming transaction IDs against the snapshot xmin, with updated processing flow in Electric.Shapes.Consumer.handle_txn to leverage the new logic for more reliable transaction processing. Commit reference tied to this change: 0e9e1faae276b8bb25ecdb8bb0396c7805933741 (Account for transaction ID wraparound when comparing incoming transaction xid to the snapshot xmin) (#2217).
1 Commits • 1 Features
Jan 1, 2025January 2025 monthly summary focused on delivering robustness in transaction processing and business value through safer XID handling in the Electric SQL integration. Key change introduced Electric.Postgres.Xid to manage potential transaction ID wraparound when comparing incoming transaction IDs against the snapshot xmin, with updated processing flow in Electric.Shapes.Consumer.handle_txn to leverage the new logic for more reliable transaction processing. Commit reference tied to this change: 0e9e1faae276b8bb25ecdb8bb0396c7805933741 (Account for transaction ID wraparound when comparing incoming transaction xid to the snapshot xmin) (#2217).
January 2025
December 2024
12 Commits • 4 Features
Dec 1, 2024Month: 2024-12 Key features delivered: - Logging Configuration Improvements and Documentation: added ability to disable colored logs; renamed and documented logging environment variables; standardized logging config naming across docs. Commits: 5b1c3e6b9ef1f8b002e571cae0a13a4195cbaf58; 0100507467cf514add2566bfd4ce793472e1ea33; f674852c8b90811701cbcb1bad1379a0d0b31d2f - Telemetry enhancements and reliability: improve observability and reliability by marking OTEL errors, robust telemetry calculations, and conditional start telemetry supervisor to reduce resource usage. Commits: 4c730f6603c8d18bfc58e424ecd864c9031d42e9; 84eb7290c9635a18ee7f3d92285225921d176caa; bfdbd4983e8c299262ccabc9e8b4e46fd11259f2 - Seed data batching feature: Add configurable transaction batching for loading seed data in the Linearlite example via TX_BATCH_SIZE, including option to disable batching for benchmarking. Commit: ea4a4e9f35e35378e48f1a3a6162bc05879adbb4 - Code refactor: child_spec simplification: Refactor ProcessRegistry child_spec to remove option-massaging logic and move it to start_link, clarifying child specs. Commit: 1665bca9750d7bdfdc10581478496071bd832da1 Major bugs fixed: - Connection resilience and recovery: Fallback to unencrypted DB connection when SSL is not available; exponential backoff when restoring a crashed replication connection. Commits: 64fe2756c2c92614b9181a71cf1ad6d29d863edd; b64c9007d85a20a080d05674d7c80d2cd89b99c7 - Release image publishing refinement: Refine Docker image release publishing rules to avoid unintended tagging with 'latest'. Commit: 16c2efb16eca76e3e05f8987c2c7f9ba1c66c0fa - Test stability improvements: Increase timeouts and robust waiting for test processes to reduce flakiness. Commit: e325ac3f97cfc54c8defa20a8c420485aecd5e30 Overall impact and accomplishments: - Significantly improved operability with better logging, telemetry reliability, dynamic seed data loading, and resilience to network or infrastructure issues. Reduced resource usage by conditioning telemetry startup; safer release tagging; more stable test runs. Technologies/skills demonstrated: - OpenTelemetry, logging configurability and docs, environment variable naming, memory stat guard, backoff strategies, Elixir/OTP patterns (child_spec, start_link), test stabilization techniques, and Docker release tagging practices.
December 2024
12 Commits • 4 Features
Dec 1, 2024Month: 2024-12 Key features delivered: - Logging Configuration Improvements and Documentation: added ability to disable colored logs; renamed and documented logging environment variables; standardized logging config naming across docs. Commits: 5b1c3e6b9ef1f8b002e571cae0a13a4195cbaf58; 0100507467cf514add2566bfd4ce793472e1ea33; f674852c8b90811701cbcb1bad1379a0d0b31d2f - Telemetry enhancements and reliability: improve observability and reliability by marking OTEL errors, robust telemetry calculations, and conditional start telemetry supervisor to reduce resource usage. Commits: 4c730f6603c8d18bfc58e424ecd864c9031d42e9; 84eb7290c9635a18ee7f3d92285225921d176caa; bfdbd4983e8c299262ccabc9e8b4e46fd11259f2 - Seed data batching feature: Add configurable transaction batching for loading seed data in the Linearlite example via TX_BATCH_SIZE, including option to disable batching for benchmarking. Commit: ea4a4e9f35e35378e48f1a3a6162bc05879adbb4 - Code refactor: child_spec simplification: Refactor ProcessRegistry child_spec to remove option-massaging logic and move it to start_link, clarifying child specs. Commit: 1665bca9750d7bdfdc10581478496071bd832da1 Major bugs fixed: - Connection resilience and recovery: Fallback to unencrypted DB connection when SSL is not available; exponential backoff when restoring a crashed replication connection. Commits: 64fe2756c2c92614b9181a71cf1ad6d29d863edd; b64c9007d85a20a080d05674d7c80d2cd89b99c7 - Release image publishing refinement: Refine Docker image release publishing rules to avoid unintended tagging with 'latest'. Commit: 16c2efb16eca76e3e05f8987c2c7f9ba1c66c0fa - Test stability improvements: Increase timeouts and robust waiting for test processes to reduce flakiness. Commit: e325ac3f97cfc54c8defa20a8c420485aecd5e30 Overall impact and accomplishments: - Significantly improved operability with better logging, telemetry reliability, dynamic seed data loading, and resilience to network or infrastructure issues. Reduced resource usage by conditioning telemetry startup; safer release tagging; more stable test runs. Technologies/skills demonstrated: - OpenTelemetry, logging configurability and docs, environment variable naming, memory stat guard, backoff strategies, Elixir/OTP patterns (child_spec, start_link), test stabilization techniques, and Docker release tagging practices.
November 2024
4 Commits • 3 Features
Nov 1, 2024November 2024 monthly summary for electric-sql/electric: three key deliveries across Electric deployments focusing on developer experience, performance, and telemetry clarity. Delivered documentation improvements for Electric Deployments, caching enhancements for 304 Not Modified responses, and telemetry metric rename/refactor. These changes improve onboarding accuracy, reduce unnecessary re-checks, and align telemetry with business semantics.
4 Commits • 3 Features
Nov 1, 2024November 2024 monthly summary for electric-sql/electric: three key deliveries across Electric deployments focusing on developer experience, performance, and telemetry clarity. Delivered documentation improvements for Electric Deployments, caching enhancements for 304 Not Modified responses, and telemetry metric rename/refactor. These changes improve onboarding accuracy, reduce unnecessary re-checks, and align telemetry with business semantics.
November 2024
Activity
Loading activity data...
Quality Metrics
Correctness92.0%
Maintainability88.2%
Architecture87.8%
Performance85.4%
AI Usage25.8%
Skills & Technologies
Programming Languages
BashCSSDockerfileElixirErlangHTMLJSONJavaScriptLuxMarkdown
Technical Skills
API DesignAPI DevelopmentAPI SpecificationAPI designAPI developmentBackend DevelopmentBuild AutomationCI/CDCLI developmentCSSCaching StrategiesCode CleanupCode FormattingCode QualityCode Refactoring
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline