Worked on the DataDog/datadog-agent repository to address a critical issue in the journald log tailer, ensuring that the first log entry is reliably read when tailing from the beginning. The solution involved introducing an entryReady flag to synchronize the tailing process with seek operations, preventing data loss at startup. This approach was validated through enhanced position-aware tests and end-to-end verification using a built binary, confirming improved data integrity. The work leveraged Go for backend development, focusing on robust log ingestion and reliability. These changes strengthened the journald integration, reducing startup data gaps and increasing trust in log collection workflows.