Big Data Engineer (Due Diligence)

About Altimi Altimi is a technology acceleration partner with impressive experience spanning over 20 years, specializing in the successful delivery of software development projects for international customers. We are based in Poland. Our main area of operation is the DACH region and Scandinavia, where we are known for providing top-notch software development services. Our primary focus are managed services for companies seeking to accelerate growth, solve complex tech problems, build MVP/POC and/or modify legacy infrastructures. The main area of competence include Product & Application Engineering, DevOps, Cloud Security & Managed Services and AI & Data Enablement.   Role Overview We are looking for a senior Big Data expert with a strong analytical background and hands‑on experience across data platforms, marketing platforms, and advanced analytics. This role is directly tied to a technology‑ and data‑focused Due Diligence project, where the expert will contribute to an independent, critical assessment of a data‑driven marketing and measurement platform. The position is suited for someone who can go deep into data and technology, challenge assumptions, and form clear, defensible conclusions about scalability, data defensibility, and long‑term relevance of complex platforms operating within the digital marketing ecosystem. This position involves a limited time commitment (approximately 20–30 hours in total). Responsibilities • Perform a deep technical and analytical review of a data‑driven marketing platform as part of a Due Diligence process • Evaluate data assets in terms of structure, ownership, freshness, scalability, and dependency on third‑party sources • Assess data pipelines, storage, and processing architecture, including use of data warehouses, lakehouse concepts, and distributed processing • Review how identity resolution, attribution, and measurement are implemented and how reliable they are across channels • Analyze how marketing and advertising data flows through the platform (from ingestion to activation and reporting) • Identify key strengths, bottlenecks, limitations, and risks within the data and technology stack • Translate complex technical findings into clear, structured insights for senior stakeholders • Act as a senior sparring partner on Big Data, analytics, and marketing‑technology topics Requirements • Strong experience in Big Data and advanced analytics, including hands‑on SQL and modern data warehouses (e.g. Snowflake, BigQuery, Redshift) • Practical knowledge of data pipelines and distributed data processing (Python/Scala, Spark, Databricks) • Experience with data platform architecture, including warehouse/lakehouse setups and data modeling • Solid understanding of marketing platforms and data flows, including CDP, analytics, and AdTech integrationsStrong grasp of attribution, marketing measurement, and ROI analysis • Strong grasp of attribution, marketing measurement, and ROI analysis • Ability to critically assess data and technology beyond dashboards and surface‑level KPIs • Prior experience in technology, data, or digital Due Diligence  Whats in it for you? • Join for a role, stay for the development: More than 40% of our team is working with us longer than 5 years. Explore diverse domains, projects and modern technologies through internal mobility. • Learn from the best: Almost 60% of all our colleague has over 10 years of professional experience. • Flexibility: Work fully remotely, full-time from our office in Wroclaw or in a hybrid model. • Practical benefits: private medical care, life insurance, sport card, English and German classes in small, online groups.