Open to opportunities

Oleh Volosianskyi

@olehvolosianskyi

Message

Experienced full stack developer specializing in cloud-native systems.

United States

Message

What I'm looking for

I am looking for opportunities that foster innovation, collaboration, and growth in cloud-native development.

I am a full stack developer with over 6 years of experience in agile software development, database optimization, and DevOps automation for cloud-native systems. My expertise lies in delivering scalable web applications using modern frameworks such as Ruby on Rails and React, ensuring high performance and reliability.

Throughout my career, I have successfully implemented observability practices and cloud migration strategies, significantly enhancing system performance and scalability. My hands-on experience with CI/CD pipelines and container orchestration tools like Docker and Kubernetes has allowed me to optimize deployment processes and improve application stability. I thrive in collaborative environments, working closely with cross-functional teams to deliver high-quality software solutions.

Experience

Work history, roles, and key accomplishments

Current

Full Stack Developer

Current

Finario

Mar 2023 - Present (2 years 4 months)

Reduced average response time by 30% through query optimization and advanced indexing strategies. Re-architected the data calculation system and introduced memory cleaning, leading to significant performance improvements. Migrated infrastructure from AWS OpsWorks to Kubernetes, enhancing deployment scalability and system reliability.

Database Optimization Kubernetes AWS Ruby JMeter CI CD Performance Tuning Reliability Infrastructure Migration

Full Stack Developer

Symplr Spend

Feb 2022 - Mar 2023 (1 year 1 month)

Migrated a monolithic system to a modular service-based architecture, improving system scalability and easing feature deployment. Enhanced third-party integration by documenting and maintaining internal APIs using Grape. Increased test coverage by 30%, improving release stability and reducing production bugs.

Microservices API Documentation Grape Test Automation Scalability Third Party Integrations Modular Architectures

Full Stack Developer

Surprise.com

Jun 2020 - Feb 2022 (1 year 8 months)

Designed and delivered high-impact features such as push notifications and a TikTok-style video feed, leading to increased user engagement. Managed a sub-team of 3 developers, coordinating sprints and ensuring on-time delivery of core functionalities. Integrated platforms like Magento, Shopify, and analytics SDKs to ensure seamless multi-channel experiences.

Push Notifications Video Feed Development Team Leadership Magento Shopify SDK Integration User Engagement Sprint Coordination Analytics SDKs

Education

Degrees, certifications, and relevant coursework

Kharkiv National University

Bachelor's Degree, Computer Science

Completed a comprehensive curriculum in computer science, gaining foundational knowledge in programming, algorithms, and software development. Graduated in 2020, preparing for a career in technology.