Cole Olshavsky

About

Senior Software Engineer | Front-End Specialist | Full-Stack Innovator With 7+ years of experience in scalable web applications and high-performance front-end development, I specialize in crafting exceptional user experiences, modular architectures, and enterprise-grade solutions. My expertise spans the MERN stack, .NET, AWS, and cloud-native technologies, enabling me to deliver robust, maintainable, and high-performing applications. Front-End Excellence Architected scalable, reusable component libraries with React.js, Next.js, and TypeScript, accelerating development speed by 30%. Designed pixel-perfect, accessible UIs using Tailwind CSS, Material UI, and automated testing tools to ensure WCAG compliance. Optimized frontend performance with atomic CSS, caching strategies, and efficient state management (Redux, Context API, React Hooks). Full-Stack & Scalable Solutions Engineered highly scalable SaaS and enterprise applications, integrating Node.js, Express.js, and GraphQL APIs for seamless backend interactions. Built real-time features with WebSockets, enhancing user engagement by 25% through live notifications and dynamic UI updates. Designed cloud-native architectures using AWS Lambda, S3, and DynamoDB, cutting infrastructure costs by 25% while boosting reliability. Performance, Security & DevOps Developed secure payment gateways with Stripe, PayPal, ensuring PCI compliance and high-volume transaction handling. Automated CI/CD pipelines with Docker & GitLab CI/CD, reducing deployment cycles by 30% and enabling rapid feature rollouts. Led legacy modernization projects, transforming outdated monolithic systems into highly modular, scalable, and maintainable architectures. I thrive in Agile, cross-functional teams, mentoring engineers, optimizing performance, and delivering cutting-edge solutions that drive business success and seamless user experiences. Let’s build something amazing! Tech Stack: Front-End: React.js, Next.js, Redux, TypeScript, Tailwind CSS, Storybook Back-End: Node.js, Express.js, .NET, GraphQL, REST APIs Cloud & DevOps: AWS (Lambda, S3, DynamoDB, ECS), Docker, GitLab CI/CD Other: WebSockets, Redis, PostgreSQL, MongoDB, Jest, Mocha

Experience

• Senior Software Engineer · Dev&Mark09-01-2021

  Built a Scalable, Reusable UI Component Library – Designed a backward-compatible component system, improving code reusability by 30% and accelerating feature delivery. Crafted High-Performance, Scalable Frontends – Engineered modular, responsive UI components with React.js, Next.js, TypeScript, and Storybook, ensuring consistency and maintainability. Optimized Page Performance & Load Times – Boosted speed by 15% using atomic CSS, streamlined database queries, and caching solutions like Redis. Enhanced State Management & User Experience – Leveraged React Hooks, Context API, and Redux, ensuring seamless state-driven interactions across applications. Designed Pixel-Perfect, Accessible UI – Implemented Material UI & Tailwind CSS, automating accessibility checks with axe-core for WCAG 2.0 AA compliance. Implemented Real-Time Features – Integrated WebSockets for live updates and notifications, increasing user engagement by 25%. CI/CD & Deployment Automation – Streamlined workflows using Docker & GitLab CI/CD, reducing deployment cycles by 30%. Secure Payment Gateway Development – Architected a PCI-compliant payment system using React.js, Redux, and Node.js, optimizing secure, high-volume transactions.

• Senior Software Engineer · 3Verticals04-01-2019 – 09-01-2021

  Built a Scalable Authorization System – Developed a distributed authorization system using Open Policy Agent (OPA), improving performance by 30% and securing access control. Modernized Legacy Systems – Upgraded Confluence Cloud with WebSocket-based real-time sync, cutting server costs by $10,000/month and improving performance by 40%. Designed Reusable UI Components – Developed modular, scalable React.js & Next.js front-end components, reducing development time by 30%. Optimized User Experience & Performance – Enhanced UIs using Tailwind CSS, Material UI, and optimized frontend rendering, boosting speed and engagement. Developed Enterprise Features – Created custom Confluence templates for enterprise clients like Microsoft & Slack, improving large-scale content workflows. Integrated Serverless & Cloud Technologies – Built cloud-native solutions with AWS Lambda, S3, DynamoDB, reducing infrastructure costs by 25%. Automated Data Processing – Developed Node.js scripts that cut manual data processing efforts by 50%, streamlining workflows. Real-Time Notifications & API Optimization – Implemented WebSockets & GraphQL APIs, ensuring seamless updates and reducing API response times. Testing & Stability – Achieved 90% test coverage with Jest & Mocha, improving system reliability and reducing regression issues.

Education

• UC IrvineBachelor's degree, Computer Science

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