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Joshua Reichler

@joshuareichler1

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Senior software engineer specializing in Ruby backends and React frontends.

United States

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What I'm looking for

I seek a collaborative, product-focused engineering role where I can build reliable, high-performance backend systems, contribute to frontend improvements, and drive measurable performance and reliability gains.

I am a Senior Software Engineer with 10 years of experience building scalable web applications in fintech and SaaS environments. I specialize in Ruby-based backend systems and React frontends, focusing on reliable APIs and high-quality maintainable solutions.

At Unite Us I developed and maintained Ruby on Rails backend services powering complex care coordination workflows, improved API performance by 28%, and introduced structured logging and monitoring to maintain production reliability.

Previously at ShopKeep by Lightspeed I built and enhanced Rails services for retail transaction processing, modernized interfaces with React components, reduced system error rates by 22%, and refined Sidekiq background processing for high-throughput workloads.

I began my career building backend services for financial applications at Capital One, improving processing efficiency and developing internal tools to streamline data processing. I bring a pragmatic, metrics-driven approach and a commitment to collaboration, performance tuning, and reliable delivery.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Unite Us

Apr 2021 - Present (4 years 11 months)

Developed and maintained Ruby on Rails backend services and React integrations for care coordination workflows, improving API response performance by 28% and increasing system reliability via structured logging and monitoring.

Ruby on Rails REST APIs React Sidekiq PostgreSQL Performance Optimization Logging And Monitoring Distributed Systems

Senior Software Engineer

ShopKeep by Lightspeed

Feb 2019 - Mar 2021 (2 years 1 month)

Built and enhanced Ruby on Rails services and React components for retail transaction processing, reducing system error rates by 22% and improving query efficiency for high-volume transactional data.

Ruby on Rails React Sidekiq PostgreSQL JavaScript Schema Design Performance Tuning

Software Engineer

ShopKeep by Lightspeed

Jun 2017 - Feb 2019 (1 year 8 months)

Contributed to core Ruby on Rails application features and React frontends, improving feature delivery efficiency by 18% through workflow refinements and robust API design.

Ruby on Rails React PostgreSQL API Design JavaScript Debugging TDD

Associate Software Engineer

Capital One

Jul 2016 - Jun 2017 (11 months)

Developed backend services and internal tools for financial applications, improving processing efficiency by 15% through code optimizations and secure data handling practices.

Java Backend Development Relational Databases Data Processing API Development Performance Optimization Security

Education

Degrees, certifications, and relevant coursework

Cornell University

Bachelor's Degree, Computer Science

2012 - 2016

Completed a Bachelor’s degree in Computer Science with coursework and projects focused on software engineering and systems development from 2012 to 2016.