Senior Backend Engineer (Data serving)

About the role

The Data Serving team is responsible for the production-grade boundary between Pleo's raw product data and its consumers, including internal teams, AI agents, and customers. As a Senior Backend Engineer, you will build and own the APIs and low-latency serving layer, ensuring contract stability and performance. This role requires a hands-on approach to designing infrastructure that makes data explainable, auditable, and trustworthy.

Responsibilities

• Build and own the Data API boundary, delivering clean, versioned, and performant endpoints.
• Design and optimise read models, indexes, and caching strategies in Postgres to guarantee low-latency query performance.
• Build reliable integrations with Kotlin-based product backend services.
• Own the reliability and performance of services through monitoring, incident response, and SLOs.
• Partner with Data Engineers to define clean contracts between ingestion and serving layers.
• Partner with the Authorization team to secure APIs using industry-standard protocols.
• Build a near-real-time data aggregation service to unify data across services.
• Design metadata, lineage, and governance capabilities for the serving layer.
• Own access control and permission management services with full audit trails.

Required skills

• Backend engineering
• API design
• Kotlin
• JVM
• PostgreSQL
• SQL
• Kafka
• AWS
• GCP
• Kubernetes
• Docker
• OLAP

Nice to have

• dbt
• Airflow
• Python

Qualifications

• Experience in fintech, payments, or other regulated product environments

Benefits

• Pleo card
• Lunch allowance
• Private healthcare
• 25 days annual leave
• Mental health and well-being support
• Paid parental leave

About the Company

Pleo builds spend solutions that make managing money seamless, empowering, and effective for finance teams and employees. With over 850 people from more than 100 nationalities, the company is committed to delivering the future of business spending.