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Joseph Lepley

@josephlepley

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Senior Backend Engineer specializing in scalable microservices and cloud solutions.

United States

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What I'm looking for

I am looking for a role that challenges my skills in backend development and cloud architecture, fosters innovation, and offers opportunities for mentorship and professional growth.

As a Senior Backend Engineer with extensive experience in designing and implementing scalable microservices, I have a proven track record of enhancing application performance and reliability. At Walmart Global Tech, I spearheaded the migration of critical Golang REST APIs, achieving a remarkable 150% improvement in response time. My expertise in backend development is complemented by a strong foundation in cloud technologies, allowing me to architect robust solutions that meet the demands of high-traffic systems.

Throughout my career, I have successfully led teams in the development of complex systems, utilizing technologies such as Docker, Kubernetes, and various database solutions. My commitment to best practices in API design and microservices architecture has resulted in significant improvements in system scalability and maintainability. I take pride in mentoring junior developers and fostering a collaborative environment that encourages innovation and continuous improvement.

Experience

Work history, roles, and key accomplishments

Senior Backend Engineer

Walmart Global Tech

Jun 2022 - Mar 2025 (2 years 9 months)

Spearheaded the migration of critical Golang REST APIs, achieving a 150% improvement in response time and enhancing application performance. Designed and implemented a robust error-handling framework for microservices, leading to a 10% increase in tracing speed. Architected and deployed a CI/CD pipeline using Docker, Jenkins, and Kubernetes, resulting in more frequent and reliable application rele

Golang Microservices Docker Kubernetes Jenkins Cassandra AWS Agile

Backend Engineer

Turing

Jun 2018 - May 2022 (3 years 11 months)

Spearheaded the design and implementation of scalable distributed systems using Go, orchestrated with Docker and Kubernetes, reducing deployment times by 10%. Optimized backend performance for high-traffic systems, enabling over 1 million concurrent users by combining Go with NoSQL databases. Led the migration of legacy Python code to concurrent Go, achieving up to an 8x performance improvement.

Go Docker Kubernetes Redis Cassandra Python Gin AWS Terraform Next.js React GitHub Actions

Junior Backend Developer

Web Solutions NYC

Nov 2016 - May 2018 (1 year 6 months)

Engineered interactive web and mobile applications using Go and Python, consistently delivering robust and scalable solutions. Configured advanced ORM features with TypeORM and Sequelize to streamline database operations and enhance efficiency. Designed and optimized efficient SQL queries for databases such as MySQL and PostgreSQL, reducing query response times.

Go Python TypeORM Sequelize MySQL PostgreSQL RabbitMQ Redis MQTT Cassandra Docker GitHub Actions Nginx

Education

Degrees, certifications, and relevant coursework

University of North Florida

Bachelor of Science, Computer Science

Studied Computer Science, gaining foundational knowledge in programming, algorithms, and data structures. Completed the program at the University of North Florida.