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BUILD 0.39.3

Vitalii Romaniuk

Kidomakai · Full-stack software engineer

Full-stack software engineer with more than a decade of experience building and modernizing production web platforms. A background in automated electromechanical systems complements deep experience with Python backends and React-based JavaScript and TypeScript frontends, from established monoliths to service-oriented systems. Experienced in leading teams of up to 14 engineers, taking products from MVP to production, improving architecture and performance, and working directly with product stakeholders.

Base
Valencia, Spain
Origin
Kharkiv, Ukraine
Current node
Abby
Profession
Full-stack software engineer
Education
Master’s degree in Automated Electromechanical SystemsNational Technical University "Kharkiv Polytechnic Institute"
Full-stack software engineerAbby ↗

A virtual receptionist service combining U.S.-based human receptionists and AI-powered call handling for businesses.

Full-stack engineering across multiple production services, focused primarily on client-facing platform capabilities.

  • Build and maintain features across backend services and web applications.
  • Work across service boundaries to deliver and improve customer-facing product workflows.
Python / TypeScript / React
Senior full-stack software engineerWasteHero ↗ · Aarhus / Herning, Denmark

An AI-native operating system that unifies routes, fleet, tickets, billing, and self-service for municipalities and waste operators.

Full-stack engineering across backend, web, and mobile applications, including the platform’s AI-driven second generation.

  • Contributed to multiple product initiatives, including WasteHero AI v2.
  • Presented product demonstrations and worked directly with stakeholders.
  • Delivered features across backend, web, and mobile applications.
Python / Django / React / React Native / TypeScript / GraphQL / Hetzner / Google Maps / OpenStreetMap
Full-stack software engineer · UKEESS contractorSevenRooms / DoorDash ↗ · Remote

A hospitality technology platform for reservations, CRM, guest experience, and marketing; part of DoorDash since 2025.

Contracted through UKEESS Software House to work exclusively on the SevenRooms product.

  • Maintained and extended a production guest-experience platform.
  • Built and supported point-of-sale integrations.
  • Delivered product features and platform improvements across the stack.
Python / Django / JavaScript / React / GCP / POS integrations
Full-stack software engineerEmotive ↗ · Remote

An e-commerce SMS marketing platform for two-way messaging, campaign automation, segmentation, integrations, and revenue attribution.

Full-stack engineering across the services and interfaces supporting merchant messaging and campaign workflows.

  • Worked across Flask microservices, a Django monolith, and React and Angular frontends.
  • Diagnosed product and architecture issues, translated them into actionable Jira work, and implemented solutions.
  • Improved database performance and system architecture while delivering new product capabilities.
  • Shared knowledge across the team and mentored engineers at different seniority levels.
Python / Flask / Django / JavaScript / React / Angular
Full-stack engineering lead / software architectDDI Development ↗ · Kharkiv, Ukraine

Software consultancy where I delivered multiple client products and led several project teams while combining architecture, engineering management, and hands-on full-stack development.

  • Delivered full-stack systems across multiple client projects and domains.
  • Designed scalable backend systems for high-concurrency workloads.
  • Improved application performance and guided architectural decisions.
  • Led and mentored multiple project teams, including a team of 11 engineers.
Full-stack engineering lead / software architectWasteHero ↗ · Denmark

An end-to-end operating platform for municipal and commercial waste management.

Combined hands-on full-stack development with architecture, technical leadership, delivery, and stakeholder communication.

  • Helped take the product from MVP to production.
  • Led a growing engineering team ranging from two to 14 people.
  • Owned architecture and performance work, sprint delivery, product demonstrations, and stakeholder communication.
AWS / Python / Django / React / React Native / TypeScript / GraphQL / Google Maps / OpenStreetMap
Full-stack software engineerAnvilEight ↗ · Kharkiv, Ukraine

Full-stack engineering across multiple client products; notable projects included IEEE, Salesforce, and LiveChat.

  • Delivered production work across multiple projects, including IEEE, Salesforce, and LiveChat.
  • Built payment, email, and electronic-signature integrations and implemented core business logic.
  • Refactored legacy systems, improved performance, and added unit and integration test coverage.
  • Mentored other developers.
Python / Django / JavaScript / PostgreSQL
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