Backend Quality Engineer - App Store Analytics

Summary

The App Store Analytics Quality Engineering team ensures the accuracy, reliability, and integrity of customer experience data that powers features and insights across the App Store ecosystem. We are seeking a Backend Test Engineer with strong experience in Big Data environments (Spark, Kafka, Flink, Hadoop, Hive, Iceberg) and the ability to build scalable, robust backend test automation using Java or Python. This role is central to ensuring quality throughout the data lifecycle — from client instrumentation to backend aggregation and reporting — by applying shift-left testing principles, embedding quality checks early in development, and integrating test automation within CI/CD pipelines.

Minimum Qualifications

Bachelor’s degree in Computer Science, Engineering, or similar field At least 7+ years industry experience in a similar role Strong proficiency in Python and/or Java for backend test automation and data validation Working knowledge of SQL and large-scale dataset validation across distributed storage or data lake environments Experience with REST API testing and automation Experience with CI/CD pipelines and continuous testing frameworks Proven experience implementing Shift-Left testing practices and embedding automation early in the SDLC Strong analytical, debugging, and communication skills

Preferred Qualifications

Hands-on experience with Big Data frameworks (Spark, Kafka, Flink, Hadoop, Hive, Iceberg) Familiarity with containerized environments (Docker, Kubernetes) and deployment automation Knowledge of Charles Proxy, Postman, or equivalent tools for API and network validation Exposure to iOS/macOS platforms and Swift (for end-to-end validation scenarios) Passion for building maintainable, reusable, and scalable test automation systems

Description

In this role, you will drive quality for large-scale distributed data systems that power App Store analytics. You will collaborate closely with engineering, data, and program management teams to define test strategies, contribute to automation frameworks, and ensure high data fidelity across ingestion, transformation, and reporting layers. You will be responsible for: *Implementing and maintaining automated validation frameworks for data pipelines and services *Integrating automated tests into CI/CD pipelines to ensure continuous feedback and early defect detection *Partnering with developers to shift quality left by embedding testability into data workflows and APIs *Ensuring consistency and correctness of client-to-backend data flows across iOS, macOS, tvOS, and Web This role requires a self-driven engineer with strong technical depth, solid analytical skills, and the ability to influence quality across complex, evolving systems.

Responsibilities

Design, implement, and maintain automated test frameworks for backend data validation, ETL verification, and system integration testing Collaborate with data and backend engineers to embed test hooks and validations early in the development lifecycle (Shift-Left) Integrate automated tests into CI/CD pipelines to ensure continuous quality validation Validate data pipelines built on Spark, Kafka, Flink, Hive, Hadoop, and Iceberg, ensuring correctness, completeness, and performance Develop scalable utilities for schema validation, data comparison, and regression checks across distributed datasets Conduct functional, regression, and data integrity testing across multiple storage and compute layers Build monitoring and alerting mechanisms for pipeline health and data quality KPIs Investigate, isolate, and debug complex data issues across client and backend layers Document test strategies, automation architecture, and validation reports