Артур

ARTUR FESENKO
Senior Software Engineer
[відкрити контакти](див. вище в блоці «контактна інформація») | [відкрити контакти](див. вище в блоці «контактна інформація») | [відкрити контакти](див. вище в блоці «контактна інформація») | Vinnytsia, Ukraine

PROFILE
Senior Software Engineer with 8+ years of commercial experience across marketplace and B2B/SaaS
products — from launching a B2B platform from scratch (50+ paying subscriptions within 3 months of
release) to scaling modern JavaScript-based systems for AUTO.RIA, Ukraine's #1 automotive
marketplace, and DOM.RIA, one of Ukraine's leading real estate platforms. Proven track record of
turning performance and SEO improvements into measurable business results: +14% platform
profitability, $4,500/month in infrastructure savings, and up to +27% user engagement. Strong
background in legacy system migration, performance monitoring, and cost-effective technical
architecture decisions.

EXPERIENCE
Senior Software Engineer
The Frontend Company | Jan 2025 – Present
Full-stack development across two client products at a software development agency.
• Built a B2B platform from scratch for a Digital Business Card product, launching to production in 4
months; the platform reached 50+ paying company subscriptions within 3 months of release.
• Supported the B2C mobile app, including build management and app store deployment processes.
• Integrated third-party services (Salesforce, HubSpot, and others) into the B2B dashboard to support
client workflows.
• Contributed to an internal AI assistant (ChatGPT-style tool) with integrations into Google Workspace
and internal client systems.

Senior Software Engineer
AUTO.RIA | June 2023 – Dec 2024 (1 yr 6 mo)
Ukraine's #1 automotive marketplace for buying and selling new and used vehicles.
• Participated in the redesign and migration of the web platform from a legacy Flight framework to Vue
3, modernizing the codebase and improving maintainability.
• Built a notification system in the personal cabinet, increasing user engagement by 7%.
• Integrated Google Pay and Privat24 payment methods, driving a 4% increase in payment conversion
rates.

Senior Software Engineer
DOM.RIA | July 2018 – May 2023 (4 yr 10 mo)
One of Ukraine's leading real estate platforms for buying, selling, and renting residential and commercial
properties.
• Increased project profitability by 14% through a complete platform redesign, enhancing performance
and user engagement.
• Reduced operational costs by $4,500/month by replacing Google Maps with a custom Mapbox-based
solution.
• Boosted Google Lighthouse scores by 270%, moving core pages from red to yellow/green
performance zones.
• Migrated the admin panel from PHP to Node.js, significantly accelerating development speed.

• Engineered and launched a developer ranking system, increasing engagement by 27%.
• Designed and built a credit/bank calculator, increasing lead generation by 12%.
• Built an AI-powered SEO text generator, reducing manual SEO workload and improving search
rankings.

LEADERSHIP & COLLABORATION
• Mentored 2 junior developers over 3 years, from trainee level through to Senior, providing ongoing
code review, technical guidance, and career development support.
• Conducted regular code reviews across the team, maintaining code quality and consistency
standards.
• Authored internal technical documentation at DOM.RIA, supporting onboarding and knowledge
sharing across the engineering team.
• Owned key technology decisions — for example, selecting and implementing a custom Mapbox
solution to replace Google Maps — and presented technical proposals to stakeholders and
management for buy-in.
• Collaborated cross-functionally on an ongoing basis with SEO, product, and design teams to align
technical execution with business goals.

TECHNOLOGIES
Frontend: React.js, Redux, Next.js (SSR), Vue.js, TypeScript, JavaScript (ES6+), HTML5, CSS3
Backend: Node.js, GraphQL, REST APIs
Databases: MySQL, MongoDB
DevOps & Deployment: Vercel (frontend deployment), AWS EC2 (backend deployment), AWS S3
(image storage)
Testing: Jest
Tools & Build: Git, Webpack, Vite

EDUCATION
Master of Science, Engineering
Vinnytsia National Technical University, Vinnytsia, Ukraine