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