Sr. Data Engineer

Job Title: Senior Data EngineerExperience Required: 6+ Years Engagement Type: Contract AboutLinksoft is seeking two Senior Data Engineers with deep Google Cloud Platform and BigQuery experience to deliver hands-on technical discovery and assessment work for a data architecture engagement on behalf of a client.The client operates a mature data environment centered on Google BigQuery, with integrations spanning Salesforce, Snowflake, HubSpot, and several homegrown and third-party systems.This engagement is a time-boxed advisory assessment and not an implementation project.Key ResponsibilitiesEnvironment Baseline Metrics — GCP billing exports, BigQuery cost decomposition, slot vs on-demand analysis, storage growth trending, and 12-month cost trajectory.Asset & Integration Inventory — discovery across platforms, pipelines, APIs, and undocumented integrations.Pipeline & ETL Assessment — orchestration review, error handling, idempotency, schema evolution, CDC patterns, and production pipeline case studies.Data Quality & Validation Assessment — validation coverage, lineage capability, reconciliation practices, and business impact mapping.Monitoring & Observability Assessment — monitoring posture, MTTD analysis, and monitoring stack recommendations.Must-Have SkillsAdvanced Google BigQuery expertise including INFORMATION_SCHEMA introspection, query optimization, schema and dataset management.Experience with GCP billing exports, BigQuery IAM, partitioning, clustering, and metadata tables.Hands-on experience with Airflow or Cloud Composer, dbt, ETL/ELT design, and Fivetran or Airbyte.Strong understanding of data quality frameworks, pipeline observability, reconciliation, and backup/recovery assessment.Technical documentation and client-facing communication skills.Good-to-Have SkillsSnowflake knowledgeSalesforce or HubSpot API familiarityObservability tooling such as Monte Carlo or DatafoldPython scripting for pipeline automationGCP certificationsExperience Profile6+ years in data engineering rolesMinimum 3 years hands-on BigQuery experienceMinimum 2 years Airflow or Cloud Composer experienceMinimum 2 years dbt experienceExperience in SaaS, technology, or professional services preferred