Senior Backend Engineer, Data Serving

Pleo

. Build and own the Data API boundary with clean, versioned, performant endpoints .

Posted 10/6/2026full-timeRemote • United Kingdom, Denmark, Portugal, Spain, Sweden, India, GermanySeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in building and optimizing APIs for reporting and analytics, with a strong focus on performance, reliability, and security. Proficient in backend engineering, database optimization, and working within regulated environments.

Highest-signal resume keywords

Backend Engineering ExperienceAPI Performance TuningSQL Querying SkillsKotlin ProgrammingAWS or GCP Experience

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

API DesignDatabase OptimizationRelational DatabaseIndexingCaching StrategiesKafka ExpertiseContainerized ApplicationsSLO ManagementData AggregationVersioning

Soft Skills

Independent DeliveryProblem-Solving

Tools & Technologies

PostgresKubernetesFivetranJVM-based Languages

Industry Keywords

FintechPaymentsRegulated Environments

Tech Stack

Tools & technologies

AWSGoogle Cloud PlatformKafkaKotlinKubernetesPostgresSQL

About the role

Key responsibilities & impact

Build and own the Data API boundary with clean, versioned, performant endpoints
Deliver APIs for internal dashboards, customer-facing features, and third-party tools such as Fivetran connectors
Design and optimise Postgres and future OLAP read models, indexes, and caching strategies
Build integrations with Kotlin-based product backend services
Own monitoring, incident response, reliability, performance, and SLOs for customer-facing services
Define contracts between ingestion/aggregation systems and the serving database with Data Engineers
Secure APIs using industry-standard authentication and authorization protocols
Build a near-real-time data aggregation service across Pleo services
Design metadata, lineage, and governance capabilities
Own access control and permission management, including row- and column-level access and audit trails
Establish the Reporting API's production version, contracts, versioning, SLOs, tenant isolation, and security model

Requirements

What you’ll need

Strong backend engineering experience building and owning reporting and analytics API services and serving-layer infrastructure
Experience with reliability, latency, and SLOs
Experience owning API boundary layers, including endpoint design, versioning, contract stability, and protecting consumers from raw data sources
Expertise in read-heavy systems, relational database optimisation, indexing, materialised views, caching, and API performance tuning
Strong SQL querying skills and database fundamentals across SQL and non-SQL systems
Deep expertise in Kafka
Deep experience with a JVM-based language; Pleo's product backend is Kotlin-based
AWS or GCP and Kubernetes experience, including configuring, deploying, and operating containerised applications in a Kubernetes environment
Experience working between data systems and product backend services
Ability to move quickly and independently in a hands-on delivery role
Experience in fintech, payments, or other regulated product environments
Valid right to work in the chosen country
English-language application and ability to use English as the company language
No visa sponsorship available

Benefits

Comp & perks

Your own Pleo card
Catered meals or a lunch allowance for work days
Comprehensive private healthcare, with coverage options depending on location
25 days of annual leave plus public holidays
Hybrid and fully remote working options
Free mental health and well-being support through MyndUp
Paid parental leave