About me
Danylo Kliushnyk
Software Engineer
Software Engineer building data-driven products with React, React Native, TypeScript, Node.js, NestJS, Next.js, and Express. I'm drawn to the hard parts: complex state, role-based flows, interactive data visualization, and payment systems. I also work with RAG architectures and ship real AI features — integrating LLM APIs in production and reviewing everything AI-assisted tools produce by hand.
I want to keep growing as a fullstack, mobile, or AI developer, and I'm open to picking up new technologies and languages. I'm easygoing and upbeat, and I genuinely enjoy working as part of a team.
I live in Benidorm, Spain. I'm curious about new technology and always looking to grow, both as an engineer and as a person. Outside of work I'm into hiking and video games.
Languages
Chernihivske
Senior Fullstack Developer
50th-anniversary campaign site for a Ukrainian brewery, built solo end to end
A commemorative full-stack website marking 50 years of Chernihivske beer: brand history, employee stories, and an interactive AI photo filter that restyles a visitor’s selfie into retro decade looks (1976–2026).
Feb – Apr 2026Metricable
Senior Frontend Developer
SaaS analytics platform turning Stripe billing data into real-time metrics
Metricable turns raw Stripe billing data into real-time analytics: MRR, ARR, LTV, churn, and cohort breakdowns, plus AI-powered predictive charts and startup valuation trends. I built the entire frontend from zero to public launch — architecture, component system, MobX state, and ~15 screens — and became the sole frontend engineer after a team reorganization, owning the product end to end. It's also where I picked up Next.js and Apache ECharts from scratch, having never used either before, while still shipping production features on a live roadmap.
May 2025 – Feb 2026Acquire.com
Senior Frontend Developer
Frontend-focused, with backend work on the Node.js layer: SendGrid email pipelines and OpenAI API integration
The largest marketplace for buying and selling profitable online businesses
Nov 2021 – May 2025I joined Acquire.com at an early startup stage and stayed through its growth into a full-fledged product with subscription billing and deal documentation, as part of a distributed team of ~13 across the US and Ukraine — building the web platform used by hundreds of thousands of entrepreneurs.
Lazo (Altruus)
Senior React Native Developer
Mobile-first digital gifting platform · iOS + Android
Send a real gift to any friend in just a few taps.
React Native developer on a 6-person team in Kharkiv, Ukraine, building a social gifting app end to end.
Discover & send gifts
Browse curated gift ideas, pick an amount, and send it to a friend in a few taps — payments handled end to end.
Friends & activity
A social feed of gifts sent and received, plus friend invites — including a flow for gifting people who haven't joined Lazo yet.
Klean
Fullstack Developer
On-demand laundry pickup & delivery
Klean'd is an on-demand laundry pickup-and-delivery platform connecting three sides of the market: customers who need laundry done, independent drivers who pick it up and deliver it, and local laundromats and dry cleaners who clean it. I worked across all three iOS apps that power the platform, handling UI/UX, app permissions, and the NestJS / GraphQL backend integration end to end.
Apr – Aug 2020
Kleand
For customers · request, track, and receive laundry
Schedule a laundry pickup from any address, track the order in real time, and get clean clothes delivered back — without a trip to the laundromat.
Kleand Driver
For drivers · flexible gig delivery work
Lets independent drivers pick their own jobs and schedule, then manage pickups and deliveries end to end with live route navigation and earnings tracking.
Kleand Merchant
For laundromats & dry cleaners · order management
Gives local laundromats and dry cleaners a dashboard to manage incoming orders and track deliveries, plugging them into the pickup-and-delivery network without extra logistics overhead.
Kupenda
Fullstack Developer
Language-learning dating app pairing native speakers for mutual exchange
Full-stack developer at SpryRocks, in a 1–3 person team shipping consumer mobile apps.
Oct 2019 – Mar 2020