Open to opportunities

Yar Chol

@yarchol

Senior Staff Software Engineer building cloud-native SaaS, distributed systems, and AI-enabled applications with hands-on technical leadership.

United States

Message

What I'm looking for

I’m looking to lead architecture for cloud-native AI-enabled SaaS, stay hands-on with scalable systems, and drive reliability, performance, and engineering standards—while mentoring engineers and aligning technical strategy with business goals.

I’m a Senior Staff Software Engineer with 14 years of experience designing and delivering cloud-native SaaS platforms, distributed systems, and AI-enabled applications. I lead architecture across backend, frontend, data, and platform engineering while staying deeply hands-on with software development.

At Weights & Biases, I’ve led architecture for AI platform services spanning backend systems, distributed data pipelines, frontend applications, and cloud infrastructure. I designed resilient microservice architectures, established engineering standards for design, testing, observability, reliability, and mentoring, and built AI-enabled capabilities integrating machine learning workflows and large language models.

Previously, I developed enterprise financial software and data-focused backend services using modern cloud practices, CI/CD, Docker-based deployments, monitoring, and API modernization. Across roles, I focus on reducing technical risk, improving reliability and performance, and partnering cross-functionally to align long-term technology strategy with business objectives.

Experience

Work history, roles, and key accomplishments

Current

Staff Software Engineer

Current

Weights & Biases

Feb 2020 - Present (6 years 6 months)

Led architecture for AI platform services across backend systems, distributed data pipelines, frontend applications, and cloud infrastructure. Designed resilient microservices, established engineering standards, and mentored senior engineers while integrating machine learning and large language model workflows with production reliability.

Senior Software Engineer

nCino

May 2017 - Dec 2019 (2 years 7 months)

Developed enterprise financial software and backend services supporting high-volume customer workflows using Python, JavaScript, React, SQL, and REST APIs. Led initiatives around scalable architecture, API modernization, database optimization, and automated testing, and implemented CI/CD and Docker-based deployments with monitoring to reduce production incidents.

Python JavaScript React SQL REST APIs Cloud Native Architecture Database Optimization Automation Testing CI CD Docker Infrastructure Automation Monitoring

Data Software Engineer

Altera Data

Oct 2013 - Mar 2017 (3 years 5 months)

Engineered enterprise software applications and data-related services using Python, JavaScript, and SQL, building backend components and REST APIs to support scalable enterprise data processing. Supported modular architectures, automated testing and code reviews, and cloud migration efforts by modernizing legacy applications and improving deployment automation.