Data Engineer

Data EngineerJob#: 3054052Job Description:About the RoleWe are seeking a highly experienced Data Engineer with deep expertise in Power BI semantic model design and GCP BigQuery to lead data visualization initiatives within our growing analytics team. The ideal candidate brings 10+ years of experience in data engineering and business intelligence, along with a proven track record of architecting, developing, and optimizing enterprise-scale Power BI semantic models, reports, and dashboards. Strong data engineering knowledge is also essential. This role will establish best practices for querying and transforming massive datasets in BigQuery and partner with business and cross-functional stakeholders to translate reporting needs into high-performance, high-impact insights.Key ResponsibilitiesA. Business Engagement and Requirement DiscoveryMeet regularly with business stakeholders, process owners, and end users to understand reporting needs, pain points, and the decisions reports must support.Lead requirements workshops and walkthroughs of existing reports to identify gaps, manual work, and duplicate reports that can be consolidated.Define and document KPIs, metrics, and business rules in a shared glossary, including calculation methods, filters, and sources of truth.Document reporting logic in detail, including:Report grain, such as dealer, contract type, or quarterFilters, exclusions, and default valuesHierarchies, drill paths, and time-intelligence requirementsTreatment of nulls, negative values, and cancelled or reversed recordsConfirm data sources, refresh frequency, and latency expectations, including daily, hourly, and near-real-time requirements.Gather security requirements, including data visibility and row-level or object-level security.Establish acceptance criteria, sample outputs, and sign-off requirements before development begins.Translate business requirements into functional and technical specifications, mapping documents, and logical data models.Prioritize the backlog with business stakeholders and establish delivery milestones using agile practices.Lead UAT and reconciliation sessions by comparing report totals with source systems or legacy reports.Provide user training, documentation, and ongoing support.B. Semantic Model and Data ModellingDesign and maintain enterprise Power BI semantic models using star and snowflake schemas.Select the appropriate storage mode—Import, DirectQuery, Dual, Direct Lake, or composite models—based on data volume, freshness, and cost.Develop robust models with:Optimized relationshipsReusable, well-documented DAX measures and calculation groupsM-Query transformationsRole-playing dimensionsIncremental refresh and aggregation tablesPromote reusability through shared certified datasets, thin reports, and consistent business definitions across departments.Establish standards for naming conventions, folder and measure organization, and model documentation.C. GCP BigQuery and Data EngineeringWrite complex, optimized BigQuery SQL using CTEs, window functions, and joins across large datasets.Apply BigQuery best practices, including partitioning, clustering, views, materialized views, query pruning, avoiding SELECT *, slot and on-demand usage management, and query performance tuning.Collaborate with data engineers to design ETL/ELT pipelines, curated (gold) layers, and dimensional models in BigQuery.Build reporting-ready views or tables in BigQuery so that intensive transformations occur upstream rather than in Power BI.Ensure data accuracy, integrity, and consistency through validation checks, reconciliation, and data-quality rules.Understand orchestration and pipeline concepts; familiarity with Dataflow, Cloud Composer/Airflow, and Python is a plus.D. Performance, Administration, and GovernanceTune report and model performance using Performance Analyzer, DAX Studio, Tabular Editor, and VertiPaq Analyzer.Improve refresh processes through incremental refresh, query folding, and efficient partitioning.Administer Power BI Service, including workspaces, deployment pipelines, datasets, gateways, refresh schedules, and capacity.Implement row-level and object-level security while following data governance, access, and compliance standards.Establish CI/CD and version control for BI assets wherever possible.Monitor usage, refresh failures, and capacity, and proactively resolve issues.Required QualificationsBachelor's degree in Computer Science, Information Technology, or a related field.10+ years of Business Intelligence experience, with a strong focus on Power BI and enterprise reporting.Advanced SQL skills and hands-on experience developing complex, optimized queries in Google BigQuery.Strong understanding of data engineering and data warehousing, including ETL/ELT, dimensional modelling, and data pipelines.Expert semantic model design capabilities, including advanced DAX, M-Query, star and snowflake schemas, and composite models.Expert proficiency with Power BI Desktop and Power BI Report Builder (paginated reports).Extensive Power BI Service experience, including publishing, security, administration, and gateway configuration.Strong understanding of BigQuery architecture, including tables, views, materialized views, partitioning, and clustering.Proven ability to connect Power BI to BigQuery and other sources and optimize data refresh.Demonstrated experience gathering requirements directly from business users and documenting logic and specifications.Excellent analytical, problem-solving, and communication skills.Ability to work independently and collaboratively in a fast-paced agile environment.Everforth Apex is a world-class IT services company that serves thousands of clients across the globe. When you join Everforth Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRateds Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico.Everforth Apex uses a virtual recruiter as part of the application process. Click here for more details. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Everforth Apex and its affiliates, and contracted partners. Frequency varies for text messages. Message and data rates may apply. Carriers are not liable for delayed or undelivered messages. You can reply STOP to cancel and HELP for help. You can access our privacy policy at Everforth Apex Benefits Overview: Everforth Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Everforth Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our ‘Welcome Packet’ as well, which an Everforth Apex team member can provide.Everforth Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.If you require an accommodation under the Americans with Disabilities Act to participate in an interview with a virtual recruiter or to use our website for a search or application, please contact our Benefits Department at [email protected] or View phone number on click.appcast.io. Please note that this contact information is strictly to be used for medical ADA accommodations and that no other inquiries will be answered.UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Everforth Apex Systems.