Open to opportunities

Joseph Miles

@josephmiles1

Message

I build scalable data platforms, secure APIs, and high-concurrency analytics systems.

United States

Message

What I'm looking for

I'm looking to build scalable backend, data platform, and analytics systems where I can improve reliability, performance, secure data access, and customer-facing reporting through collaborative Agile delivery.

I've built and scaled backend data platforms for Capgemini, Airbnb, and Square, improving reporting, payment, and analytics systems across real estate, travel, and fintech.

At Capgemini, I improved dashboard response times by 35%, reduced escaped data defects by 40%, cut compute costs by 22%, and increased release cadence by 30% through AWS, Iceberg, Trino, Flink, Kafka, SQL tuning, and thinly sliced Agile delivery.

I focus on secure API layers, maintainable Python, Ruby, and JavaScript services, and reliable high-concurrency data pipelines supported by testing, observability, refactoring, and practical collaboration.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Capgemini

Mar 2023 - Present (3 years 5 months)

Led consulting engagements for real estate property management, modernizing multi-tenant data pipelines and improving dashboard response times by 35% through SQL tuning and query optimization. Strengthened platform reliability with unit and integration testing, reducing escaped data defects by 40%.

AWS Iceberg Trino Apache Flink Kafka SQL Python Ruby Agile Unit Testing Integration Testing Data Pipelines Query Optimization Observability

Senior Software Engineer

Airbnb

Jun 2020 - Mar 2023 (2 years 9 months)

Scaled backend platforms for travel accommodation by enhancing multi-tenant data pipelines and improving real-time event processing with Apache Flink and Kafka, increasing throughput by 45%. Maintained Iceberg data lakes with disciplined table maintenance, reducing storage overhead by 18%.

Apache Flink Kafka Iceberg Trino SQL Python Ruby JavaScript Agile Data Pipelines Testing Observability

Ruby on Rails Developer

Square

Jun 2017 - Jun 2020 (3 years)

Drove backend improvements for payment and reporting workflows by building maintainable object-oriented services in Ruby and JavaScript. Enhanced customer-facing analytics with efficient SQL models and reliable data pipelines, reducing reconciliation latency by 28%.