Іван

Ivan Sprut
Senior Frontend Engineer | Ex-Frontend Team Lead
📍 Vinnytsia, Ukraine (Open to Remote)
📧 [відкрити контакти](див. вище в блоці «контактна інформація») | 🔗 [відкрити контакти](див. вище в блоці «контактна інформація»)
Professional Summary
Results-driven Senior Frontend Engineer and former Team Lead with 7+ years of experience
architecting and scaling high-performance web applications, including Headless Commerce
platforms serving up to 200k+ concurrent users. Proven track record of bridging complex
business requirements with scalable technical execution. Expert in Next.js, Vue/Nuxt, and
TypeScript, with deep expertise in performance optimization (boosting Lighthouse from 55 to
80+), test coverage expansion (3% to 87%), and integrating AI-driven workflows to accelerate
engineering delivery. Passionate about designing robust frontend architectures, mentoring
teams, and building resilient, high-performing systems.

Core Competencies & Technical Skills
• Architecture & Leadership: Frontend Architecture, Headless & Composable Commerce,
Team Leadership, Technical Strategy, Code Review Standards, CI/CD Pipeline Design, AI
Workflow Integration.
• Frontend & Frameworks: TypeScript, JavaScript (ES6+), React, Next.js (App Router &
RSC), Vue.js 2/3, Nuxt 2/3, HTML5, CSS3/SCSS.
• State, Data & Backend: Node.js, Express.js, GraphQL, REST APIs, WebSockets, TanStack
Query, Redux, Pinia, Zustand, PostgreSQL, Redis.
• E-commerce & CMS: Salesforce Commerce Cloud (SFCC), Magento 2, Shopify, Contentful,
Storyblok, Algolia.
• Testing, Performance & DevOps: Playwright, Jest, Storybook, Core Web Vitals Optimiza-
tion, Webpack, Vite, Nx Monorepo, Bitbucket Pipelines, Vercel, Datadog, New Relic, Fastly.

Professional Experience
Confidential Client – HR Tech & AI Recruitment Automation
Senior Frontend Developer (Contract / Migration Project) | August 2026 – October 2026
Engaged specifically to lead and execute the critical frontend architectural migration from Nuxt
3 to Next.js 16 within a complex enterprise environment.
• Architectural Migration: Led the frontend migration of core modules (dashboards, data
tables, administrative tools, search/filtering systems, and reporting workflows) to Next.js
16, ensuring 100% legacy behavior parity across complex data fields and URL redirects.
• Monorepo & Reusability: Built a reusable UI component library within an Nx monorepo
(14+ shared libraries) utilizing TypeScript project references, eliminating code duplication
across all modules.

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• Type Safety & Data Fetching: Implemented a strict TypeScript + Zod pipeline for runtime
type safety directly from real API payloads, integrated with React Server Components and
TanStack Query for optimized data caching.
• CI/CD & Quality Gates: Configured advanced CI/CD pipelines with commit message
conventions, pre-push hooks, diff-scoped lint/test gates, and nightly dependency audits,
successfully blocking unreviewed code from reaching the main branch.
• AI Workflow Integration: Introduced practical prompt engineering and AI-assisted
coding practices into the team’s daily workflow, accelerating boilerplate generation and
reducing PR review cycles by ~20%.
• Performance & i18n: Implemented multi-language support (EN/DE) via next-intl v4 and
optimized initial page load performance through lazy-loading, on-demand rendering, and
query deduplication.

Vaimo
Frontend Team Lead | June 2024 – March 2026
Led frontend architecture and delivery for a large-scale headless commerce platform serving up
to 200k concurrent users. Acted as the primary technical counterpart for the enterprise client.
• Architecture & Delivery: Directed the complete checkout modernization and architec-
tural redesign, breaking it down into independently testable modules.
• Quality Assurance: Spearheaded testing initiatives that increased test coverage from 3%
to 87%, significantly reducing production issues in critical business flows.
• Team Leadership & Practices: Introduced rigorous code reviews, coding standards, and
onboarding documentation. Conducted internal refinement sessions that improved collab-
oration and reduced delivery risks.
• Project Execution: Delivered 45 production releases with only one missed deadline, con-
tinuously expanding platform capabilities, including payment integrations (PayPal, Apple/
Google Pay, Klarna) and Algolia search migration.
• Client Partnership: Translated complex business initiatives into scalable technical
solutions, building long-term client trust through predictable execution and transparent
communication.

Astound Digital
Senior Frontend Engineer | January 2021 – May 2024
• Performance Optimization: Boosted Lighthouse scores from 55 to 80+ across enterprise
commerce platforms through SSR optimization, bundle splitting, advanced caching, and
image management.
• Accessibility & Compliance: Resolved 100+ critical accessibility issues across checkout
and account flows, ensuring strict WCAG compliance.
• Integrations: Developed and maintained 10+ secure integrations with payment gateways,
CMS platforms, authentication services, and BFF layers using REST and GraphQL.
• Multi-Platform Architecture: Simultaneously drove 3–5 high-traffic client projects, lead-
ing technical decisions for both monolithic and modern Headless/Composable commerce
solutions.
Frontend Developer | November 2019 – January 2021

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• Provided timely technical support and bug fixing for Magento e-commerce sites, minimizing
platform downtime.
• Executed front-end customizations and feature enhancements on Magento-based websites,
collaborating closely with cross-functional teams to resolve UX issues.

Education
• Master’s Degree in Computer Systems and Automation | Vinnytsia National Technical
University | 2013 – 2019

Certifications & Continuous Learning
• Practical Prompt Engineering (Focus on AI workflow integration)
• The Nuxt 3 Bootcamp - The Complete Developer Guide
• Communication Skills: Become Clear, Concise, Confident
• Shopify Development Fundamentals
• FE SFCC (Salesforce Commerce Cloud) Onboarding
• TypeScript | Hillel IT School (2023 - 2024)
• Computer Science | Robot_dreams (2023)

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