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Hi, I'm Anton Hordievskyi, a Senior Frontend Engineer based in Malaga. I have 9 years of experience shipping B2B SaaS products and owning end-to-end product delivery, from problem framing to production and user feedback. I thrive on turning ambiguous product problems into actionable roadmaps, leading cross-functional teams, and improving performance and reliability. I've led large migrations, built scalable frontend architectures, and mentored engineers across frontend, backend, and ops to keep the product running smoothly.…Hi, I'm Anton Hordievskyi, a Senior Frontend Engineer based in Malaga. I have 9 years of experience shipping B2B SaaS products and owning end-to-end product delivery, from problem framing to production and user feedback. I thrive on turning ambiguous product problems into actionable roadmaps, leading cross-functional teams, and improving performance and reliability. I've led large migrations, built scalable frontend architectures, and mentored engineers across frontend, backend, and ops to keep the product running smoothly.

Anton Hordievskyi

Front-End Developer, Full Stack Developer, Back-End Developer, +2

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Hi, I'm Anton Hordievskyi, a Senior Frontend Engineer based in Malaga. I have 9 years of experience shipping B2B SaaS products and owning end-to-end product delivery, from problem framing to production and user feedback. I thrive on turning ambiguous product problems into actionable roadmaps, leading cross-functional teams, and improving performance and reliability. I've led large migrations, built scalable frontend architectures, and mentored engineers across frontend, backend, and ops to keep the product running smoothly.…Hi, I'm Anton Hordievskyi, a Senior Frontend Engineer based in Malaga. I have 9 years of experience shipping B2B SaaS products and owning end-to-end product delivery, from problem framing to production and user feedback. I thrive on turning ambiguous product problems into actionable roadmaps, leading cross-functional teams, and improving performance and reliability. I've led large migrations, built scalable frontend architectures, and mentored engineers across frontend, backend, and ops to keep the product running smoothly.

Available to hire

Hi, I’m Anton Hordievskyi, a Senior Frontend Engineer based in Malaga. I have 9 years of experience shipping B2B SaaS products and owning end-to-end product delivery, from problem framing to production and user feedback.

I thrive on turning ambiguous product problems into actionable roadmaps, leading cross-functional teams, and improving performance and reliability. I’ve led large migrations, built scalable frontend architectures, and mentored engineers across frontend, backend, and ops to keep the product running smoothly.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

Ukrainian

Fluent

English

Fluent

Work Experience

Senior Frontend Developer / Tech Lead at TaxDome

January 1, 2022 - February 1, 2026

Led a year-long SPA migration (monolith → React) across 150–200 pages, growing the engineering org from ~80 to ~250. Shaped migration sequencing, introduced react-query, typed API contracts, Zustand, and new error-handling patterns, becoming company-wide standards. Owned the final phase of the migration (error architecture) and achieved 2–3x page-load improvements on complex pages. Drove frontend standards across 9–15 teams (eslint config, TS conventions, library refactors, shared error handling). Identified and mitigated a DDoS-like hotspot in an OpenSearch cluster (96% CPU); reduced cluster from 7→5 nodes and cut infra costs ~50% ($2K→$1K/month) while preventing systemic failure. Pioneered code ownership with a broader org-wide rollout to GitLab migration. Delivered ~40 user stories across 7 releases (discovery + delivery) through close collaboration with PMs and beta community; replaced duplicative Python ML code with a Ruby monolith to accelerate delivery and maintainab

Team Lead & Senior Frontend Developer at InsightCat

November 1, 2020 - December 1, 2021

Led the frontend for an infrastructure/observability platform (CTO prototype → full product). Built 5 chart types (pie, bar, line, area, Grafana-like canvas) and a ~20-page UI; connected 5 Go microservices and helped scale the team from 3 to 15 engineers. Drove end-to-end delivery from initial concept to production, achieving a first production release in ~6 months. Recruited and onboarded the founding frontend team (2 engineers) and defined a 6-month product roadmap, translating business goals into engineering epics and delivering contracts.

Team Lead & Software Developer at AFF1.com

September 1, 2017 - June 1, 2020

Led a year-long jQuery → Vue.js migration across ~40 pages, achieving a ~50% bundle size reduction and smoother performance. Built internal CRM and inventory systems end-to-end from requirements to production, establishing a daily client feedback loop and owning the full product cycle. Demonstrated rapid growth from a self-taught junior to a team lead in under 3 years, and contributed to establishing early development practices and onboarding.