Senior Software Engineer II - Data Onboarding & Reporting

Wise is on a mission to create money without borders,making it instant, transparent, and eventually free.

We are looking for a talented Senior Software Engineer II to join our Data Onboarding Team in London. In this role, you will be the driving force behind building, scaling, and optimizing the critical data pipelines on top of our Lakehouse (Trino + Iceberg) infrastructure following a strict Medallion Architecture (Bronze, Silver, Gold layers).

Technical Leadership & Pipeline Engineering

• Design, build, and optimize robust end-to-end data pipelines on top of our Trino + Iceberg Lakehouse stack.
• Own the extraction, cleaning, and modeling layers to progressively refine raw event logs (Bronze) into verified subledgers (Silver) and structured Gold metrics.
• Work closely with high-throughput messaging queues (Kafka) and real-time computation models to maintain our data freshness SLAs.
• Embed rigorous, automated reconciliation checks within the data pipelines (e.g., balance and double-entry validations) to catch data discrepancies before they reach financial reporting layers.

Strategic Impact & Collaboration

• Partner directly with finance controllers, analysts, product and engineering to turn complex corporate finance needs into production-ready data schemas.
• Address data scaling constraints, structural technical debt, and compute optimizations to directly align infrastructure costs with Wise's financial targets.

Mentorship & Engineering Excellence

• Assist and coach mid-level/junior engineers within the team, performing thorough code and technical design reviews.

Must Haves (Hard Skills)

• Proven experience building data infrastructure using Trino / Presto and open table formats like Apache Iceberg or Delta Lake.
• Deep expertise in Medallion Architecture patterns, Star Schemas, and processing semi-structured financial data logs (JSON/Avro).
• Expert proficiency in data transformation engines (such as dbt) and scheduling tools (such as Airflow).
• Solid understanding of event-driven architectures and streaming processing via Apache Kafka.
• Proficiency in Python, SQL, or an Object-Oriented language (Java/Scala).

Nice to Haves

• Experience operating data assets within a regulated SOX/PCAOB compliance environment.
• Familiarity with cloud data warehouses (e.g., Snowflake) and cloud compute orchestration.
• Prior domain exposure to financial flows, double-entry ledger systems, or accounting integrations.

What We Offer

• Starting salary: £111k - £145k + RSUs
• Wise Benefits