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I’m Andrii Troyan, a software engineer specializing in Node.js and React.js with a passion for building responsive, high-performance UIs and reliable backend services. I prototype quickly, write maintainable code, and deploy scalable, event-driven applications using AWS serverless technologies. I enjoy collaborating with designers and remote teams to turn business needs into ship-ready features, from initial planning through testing and deployment. I value clean APIs, robust error handling, automated tests, and a pragmatic approach to problem-solving.…I’m Andrii Troyan, a software engineer specializing in Node.js and React.js with a passion for building responsive, high-performance UIs and reliable backend services. I prototype quickly, write maintainable code, and deploy scalable, event-driven applications using AWS serverless technologies. I enjoy collaborating with designers and remote teams to turn business needs into ship-ready features, from initial planning through testing and deployment. I value clean APIs, robust error handling, automated tests, and a pragmatic approach to problem-solving.

Andrii Troyan

Web Developer, Programmer, Developer, +7

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I’m Andrii Troyan, a software engineer specializing in Node.js and React.js with a passion for building responsive, high-performance UIs and reliable backend services. I prototype quickly, write maintainable code, and deploy scalable, event-driven applications using AWS serverless technologies. I enjoy collaborating with designers and remote teams to turn business needs into ship-ready features, from initial planning through testing and deployment. I value clean APIs, robust error handling, automated tests, and a pragmatic approach to problem-solving.…I’m Andrii Troyan, a software engineer specializing in Node.js and React.js with a passion for building responsive, high-performance UIs and reliable backend services. I prototype quickly, write maintainable code, and deploy scalable, event-driven applications using AWS serverless technologies. I enjoy collaborating with designers and remote teams to turn business needs into ship-ready features, from initial planning through testing and deployment. I value clean APIs, robust error handling, automated tests, and a pragmatic approach to problem-solving.

Available to hire

I’m Andrii Troyan, a software engineer specializing in Node.js and React.js with a passion for building responsive, high-performance UIs and reliable backend services. I prototype quickly, write maintainable code, and deploy scalable, event-driven applications using AWS serverless technologies.

I enjoy collaborating with designers and remote teams to turn business needs into ship-ready features, from initial planning through testing and deployment. I value clean APIs, robust error handling, automated tests, and a pragmatic approach to problem-solving.

Skills

Experience Level

Expert

Expert

Expert

Expert

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Expert

Language

English

Fluent

Work Experience

Software Engineer at API Nation

June 1, 2022 - Present

Developed and maintained backend services using Node.js with serverless architecture on AWS Lambda, S3, DynamoDB, SQS, and SNS, supporting thousands of daily API calls. Designed and implemented scalable RESTful APIs, reducing integration time by up to 40% and improving data flow efficiency across platforms. Built and optimized React.js interfaces, increasing client-side performance and responsiveness. Engineered real-time data synchronization via webhooks with multiple third-party APIs, enhancing platform connectivity. Automated recurring tasks and data processing with cron jobs to improve operational efficiency and reduce manual workload by 30%. Wrote and maintained unit tests with Jest to ensure code reliability and prevent regressions. Collaborated directly with clients to gather requirements, troubleshoot complex issues, and deliver tailored, high-impact solutions.

Software Engineer at Middleware, Inc.

May 1, 2018 - April 1, 2022

Transitioned from Technical Business Analyst to Software Engineer; built and enhanced React.js UI features (reusable components, form flows, and UI state handling using Redux). Integrated front-end with back-end services via REST APIs, improving data-driven screens and validation logic. Collaborated with engineering and product teams to turn business needs into shippable features for the global money transfer platform.

Software Engineer at PrivatBank

January 1, 2017 - April 1, 2018

Developed internal tools for monitoring POS terminals; implemented diagnostic and configuration utilities, reducing maintenance and improving system stability through optimized error handling and processing.

Software Engineer at Private Bank

January 1, 2017 - May 1, 2018

Developed internal tools for monitoring and managing POS terminals (10,000+ devices), built diagnostic and configuration utilities to reduce maintenance overhead, and improved system stability by optimizing error handling and internal processing logic.