Frontend React, Redux, Vue.js, ES6, webpack, Ghost, Gatsby, 11y, WebGL, WebAR, scss, jss, Canvas, HTML 5 Media API, WebSockets, three.js, next.js, storybook, slate.js
API & Server Solutions python, django, DRF, FastAPI, aiohttp, nodejs, Express, GraphQL, Puppeteer, Elasticsearch, pytorch, pandas
Databases PostgreSQL, PostGIS, MongoDB, InfluxDB, ClickHouse
Storage redis, Varnish Cache, memcahed
Infrastructure docker, ansible, gitlab ci, nginx, traefik proxy
Cloud AWS [EC2, S3, RDS, Lambda, Route 53, SNS, SQS], DigitalOcean, Cloudflare, Cloudflare workers, serverless
Mobile Flutter, React Native
Desktop Electron
Third-party APIs Google Maps/Drive/Auth, WhatsApp, Telegram, Instagram, Airtable, Figma, Sendgrid, Github, Bitbucket, Trello, HipChat, Slack, Jira, Dropbox Business, Asana, Zendesk, Toggl, Quay.io, ActiveCampaign, Outlook, Twilio
Payment systems Stripe, PayPal, CloudPayments