oscilar - Staff Software Engineer - Analytics & Data Architecture
Requirements
• Deep, production experience operating a database or analytical store under concurrent, customer-facing load: you can reason from a query plan to a fix, not just from documentation. • Strong SQL and a real mental model of columnar / OLAP execution. • Solid backend engineering. Our stack is Java, but we care more that you can read and modify a real codebase than which tools you've used. • Data architecture experience: you've designed or materially shaped a multi-tier data platform and can defend those decisions with measurements. • Strongly preferred • Lakehouse experience: Databricks, Spark, Delta Lake / Iceberg, or comparable. • Experience designing schemas for wide, semi-structured event data (nested objects, maps, JSON). • Streaming ingestion experience (Kafka or similar). • Track record of a migration or major re-architecture, with the cost/latency reasoning to back the decisions. • Connection-pool and JDBC-level tuning experience. • Familiarity with feature-flagged rollouts of query-engine behavior changes. • Open-source contributions to a query engine or related tooling.
Responsibilities
• Find and fix database performance and scaling problems. • Own the schema and data model for our analytical data. • Design and build our analytics architecture: a tiered platform spanning our system of record, a low-latency serving tier, and a batch/ML tier. • Decide where each workload runs across those tiers, backing placement decisions with real benchmarks rather than vendor claims. • Build observability into the data layer so problems surface early. • Partner with the ingestion team to keep the read and write paths coherent as schemas evolve.
Benefits
• Mission-driven teams: Work alongside industry veterans from Meta, Uber, Citi, and Confluent, all united by a shared goal to make the digital world safer. • Ownership and impact: We believe in extreme ownership. You'll be empowered to take responsibility, move fast, and make decisions that drive our mission forward. • Innovate at the cutting edge: Your work will shape how modern finance detects fraud and manages risk. • Compensation: Competitive salary and equity packages, including a 401k plan • Flexibility: Remote-first culture — work from anywhere • Health: 100% Employer covered comprehensive health, dental, and vision insurance with a top tier plan for you and your dependents (US) • Balance: Unlimited PTO policy • Technical: AI First company; both Co-Founders are engineers at heart; and over 50% of the company is Engineering and Product • Culture: Family-Friendly environment; Regular team events and offsites • Development: Unparalleled learning and professional development opportunities • Impact: Making the internet safer by protecting online transactions
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