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Yevhenii Fesenko

@yevheniifesenko

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Full-stack developer and software architect focused on scalable, high-load web applications.

Ukraine

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What I'm looking for

I’m looking for a team that builds scalable, high-load products where I can own end-to-end full-stack delivery and contribute to system architecture—using modern cloud infrastructure, strong engineering practices, and opportunities to keep shipping improvements.

I’m a Full Stack Developer / Software Architect with 10+ years of experience designing and building scalable web applications. I bring a strong system architecture mindset, with deep hands-on work across cloud infrastructure and high-load product development.

In freelancing (2021–now), I’ve built and evolved full-stack platforms end to end—shipping features like wallet/crypto-purse connectivity, content interaction flows, and UI components that keep complex pages consistent and maintainable. I’ve also worked with modern tooling and quality practices, using a stack that includes React/Angular/Next.js, Node/Nest/Express, GraphQL (Apollo), Prisma, and production services like Sentry and Sendgrid.

Previously, at MaybeWorks (2019–2021) I worked as a Full Stack Engineer on insurance support products—implementing reporting, quotes, policy details screens, endorsements, payments views, document/notes sections, and improving frontend compatibility with evolving APIs. Before that at SoftServe (2016–2019), as a Back-end Engineer, I helped build a CRM system from scratch, designing database tables and relationships, writing unit tests in Jest, integrating third-party services (google-maps, auth0), and implementing complex data sorting logic.

Experience

Work history, roles, and key accomplishments

Current

Freelance Full Stack Developer

Current

Freelancing

Jan 2021 - Present (5 years 5 months)

Designed and built scalable full-stack web applications, including a city-travel learning platform with achievements and partner location rewards. Implemented and updated core UI components, screens, and functionality such as wallet/crypto-purse connectivity and content interactions.

React Angular Next.js Stripe Firebase Sentry Sendgrid

Full Stack Engineer

MaybeWorks

Jan 2019 - Jan 2021 (2 years)

Developed a web platform for insurance support, secure payment collection, and documentation workflows. Implemented insurance report and quotes pages, policy views/search features, documents/notes sections, and multiple policy/endorsements UI components while keeping the frontend aligned with backend API changes.

React Redux Next.js TailwindCSS React Query Jest Cypress TypeScript

Back-End Engineer

SoftServe

Jan 2016 - Jan 2019 (3 years)

Built and extended a CRM system from scratch to help users automate client bookings and vendor mailing workflows. Designed database tables/relationships, implemented CRUD operations with SQL, wrote Jest unit tests, integrated third-party APIs (Google Maps, Auth0), and delivered complex sorting/business logic.

MongoDB TypeScript ReactJS Jest SQL Google Maps Auth0 Unit Testing