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Yaroslav Domanov

@yaroslavdomanov

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Full-Stack & AI Engineer | Scalable Web Apps, APIs, ML Solutions

Spain

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What I'm looking for

I seek engineering roles building scalable, production-ready SaaS/AI web applications with strong emphasis on performance, clean architecture, cloud-native deployment, and collaborative Agile teams.

Senior Fullstack Engineer with 11+ years of experience building scalable SaaS and AI-integrated web applications using React, Next.js, TypeScript, Node.js, and Python. Strong expertise in designing high-performance REST and GraphQL APIs, optimizing PostgreSQL and Elasticsearch, and deploying cloud-native solutions on AWS, Azure, and GCP with CI/CD automation. Focused on clean architecture, performance optimization, and delivering production-ready systems that align with business objectives.

Experience

Work history, roles, and key accomplishments

Senior Software Engineer

Vass Digital Solutions

Aug 2023 - Jan 2026 (2 years 5 months)

Architected a multi-tenant cloud SaaS platform with React, Node.js, and Python, improving system performance by 40% and reducing API latency by 30% while increasing deployment consistency via containerization and CI/CD.

React Node Python REST APIs Docker CI CD PostgreSQL Performance Optimization Deployment

Fullstack Engineer

Langate Software

Nov 2018 - May 2023 (4 years 6 months)

Integrated AI/LLM capabilities into web applications and built APIs with tRPC, REST, and GraphQL, improving data retrieval performance by 30% and reducing frontend load times by 20% through optimized React/Next.js interfaces.

React Next.js TypeScript GraphQL tRPC PostgreSQL Prisma Docker CI CD Integration

Frontend Engineer

VReal-Soft

Mar 2015 - Dec 2017 (2 years 9 months)

Implemented scalable frontend solutions with React and Next.js, reducing initial load times by 20% and frontend errors by 40% through monitoring and optimized cross-device compatibility.

React Next.js JavaScript REST APIs GraphQL Sentry Cloudflare Performance Optimization

Education

Degrees, certifications, and relevant coursework

Kharkiv National University of Radio Electronics

Bachelor's Degree, Electronic and Computer Engineering

2010 - 2014

Completed a Bachelor's degree with focus on electronic and computer engineering topics at Kharkiv National University of Radio Electronics from April 2010 to September 2014.