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Joshua Reichler

@joshuareichler

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Senior software engineer specializing in scalable web applications with Python and Ruby.

United States

Message

What I'm looking for

I’m seeking senior engineering roles where I can build scalable systems, improve architecture and CI/CD, mentor teams, and deliver measurable performance and reliability gains.

I am a senior software engineer with a decade of experience designing and implementing robust web applications across multiple industries. I specialize in Python and Ruby, building scalable full-stack systems, migrating monoliths to microservices, and improving performance, test coverage, and deployment efficiency.

I have led efforts to optimize databases, design RESTful APIs, and establish CI/CD pipelines while collaborating closely with product teams and distributed engineers. My work has driven measurable gains—improving system performance, reducing response times, and increasing maintainability and developer onboarding speed.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Unite Us

Apr 2021 - Present (4 years 11 months)

Designed and implemented scalable full-stack applications (Django, Rails) and a microservices architecture that improved system performance by 30% and reduced client response times by 25%.

Python Django Ruby on Rails Microservices RESTful APIs Pytest RSpec PostgreSQL Docker

Senior Software Engineer

ShopKeep by Lightspeed

Feb 2019 - Mar 2021 (2 years 1 month)

Built and maintained Rails and Django web applications that supported 50% product user growth, implemented CI/CD and caching strategies reducing server load by 20%.

Ruby on Rails Django React Vue.Js Redis CI CD Sidekiq PostgreSQL Performance Optimization

Software Engineer

ShopKeep by Lightspeed

Jun 2017 - Feb 2019 (1 year 8 months)

Developed backend services and RESTful APIs in Python and Ruby, improved UX with responsive front-end components, and reduced post-release defects by 15% through testing.

Python Ruby RESTful APIs JavaScript HTML CSS MySQL PostgreSQL Heroku Unit Testing

Associate Software Engineer

Capital One

Jul 2016 - Jun 2017 (11 months)

Supported backend development using Python and Ruby on internal tools and data workflows, improving system reliability under senior engineer guidance.