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Denys Vodniakov

Software Engineer | Full-Stack Developer (React, Node.js, Next.js, TypeScript)

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Professional Summary


Full-stack Software Engineer with nearly 3 years of commercial experience building

modern web applications using Next.js 14+, React, Node.js, and TypeScript. Developed

high-load e-commerce systems, customer-facing interfaces, AI communication modules,

media libraries, dashboards, and admin panels. Experienced with payment integrations,

headless CMS (Payload, Sanity), and external APIs (Magento, MuleSoft, OrderGroove).

Actively incorporate AI-assisted development tools (Claude, Cursor, GitHub Copilot) to

accelerate prototyping, debugging, and test coverage. Contributed to improving service

stability, supporting microservice interactions, and maintaining development environments.

Focused on clean code, strong typing, modern frontend patterns, and scalable

architecture.


Technical Skills

Frontend

React.jsNext.jsTypeScriptJavaScriptSvelte.jsZustandZodReact QueryTailwind CSSShadCN UIVanilla-extractMaterial UI

Backend

Node.jsExpress.jsNestJSRESTGraphQLMagento integrationsMuleSoftKafka (producers/consumer)

Databases

PostgreSQLMSSQLMySQLMongoDBRedis

Cloud / DevOps

AWS: SNS, SQS, S3Dockerdocker-composemonorepoARM64 environments (M1/M2)

Headless CMS

Payload CMSSanityContentfulExigoMagento

Other

Payment systems: Adyen, BraintreeOrderGrooveHigh-load distributed systemsCI/CD, Git, Agile/ScClaude, Cursor, GitHub Copilot, LLM-powered workflows

Professional Experience

Software Engineer — Techery

July 2023 — February 2026 | Hybrid

Tech stack: Next.js 14+, React, Node.js, TypeScript, NestJS, Express, Svelte.js, Kafka, MuleSoft, Magento (REST/GraphQL), PostgreSQL, MSSQL, MongoDB, Redis, AWS (SNS/SQS/S3), Docker, Payload, Sanity, Monorepo, Exigo, Contenful

Building features end-to-end — from frontend architecture (React/Next.js 14, RSC, Server Actions) to backend services (Node.js/NestJS/Express), API design, microservice communication, database queries, integrations, and production delivery.

Key Responsibilities & Contributions

  • Built customer-facing interfaces, dashboards, media libraries, and core functional modules for a large U.S. e-commerce ecosystem used by millions of customers.
  • Developed an AI-powered customer communication chat using Svelte.js, implementing modern client–server patterns for real-time interactions.
  • Delivered high-load web applications, including MyAccount, backoffice tools, reporting modules, and subscription/auto-order management features.
  • Integrated with major external platforms — Magento, OrderGroove, Adyen, Braintree, MuleSoft, Contentful, and Exigo — ensuring stable data exchange across distributed services.
  • Developed and integrated scalable Payload CMS and Sanity schemas into Next.js applications, improving content handling and reducing development complexity.
  • Supported microservices (customer-service, reports-service, content-service, order-service) and contributed to improving the reliability of service-to-service communication.
  • Improved local development performance and environment consistency by resolving ARM64-related Docker issues, optimizing monorepo workflows, and contributing to CI/CD stability.
  • Integrated multiple AI-powered coding tools (Claude, Cursor, and other LLM platforms) into the engineering workflow, achieving a 20–30% productivity boost through faster prototyping, refactoring, and test generation.
  • Spearheaded testing initiative that achieved 54% code coverage, establishing testing standards and reducing regression issues by implementing comprehensive test suites.
  • Collaborated with event-driven components using Kafka and AWS SNS/SQS.
  • Communicated directly with U.S. clients, participated in requirement discussions, feature planning, demos, and sprint ceremonies.

Self-Employed Software Engineer — WebFox

March 2014 — February 2021 | Freelance / Contractor

Tech stack: HTM5, CSS3, JQuery, WordPress, OpenCart, WooCommerce

Delivering projects end-to-end — from gathering requirements and defining scope to designing architecture, implementing frontend/back-end logic, integrating APIs and payment systems, managing deployments, and supporting clients post-launch.

Key Responsibilities & Contributions

  • Designed and developed websites, e-commerce stores, and business systems using PHP, WordPress, and OpenCart.
  • Successfully delivered 500+ client projects, ranging from small websites to fully customized solutions.
  • Built custom themes, plugins, integrations, payment modules, and admin functionality.
  • Performed SEO, performance tuning, migrations, and long-term support for clients.
  • Worked directly with customers, handled requirements, managed expectations, and resolved communication issues between clients and development teams.
  • Managed the full development cycle: requirements → design → implementation → testing → deployment → maintenance.

Languages

  • UkrainianNative
  • EnglishB1–B2 (working proficiency; daily communication with US clients)