Tech skills library

255+ in-demand tech skills — how long each takes to learn and the best courses to get there. Then check how your resume matches any job with our free resume checker.

Languages

Python JavaScript TypeScript Java C#C++C Go Rust PHP Ruby Kotlin Swift Scala R Perl Solidity Elixir Lua SQL Bash / Shell PowerShell

Frontend

HTML5 CSS3 React Angular Vue.js Next.js Tailwind CSS Bootstrap Svelte jQuery Sass/SCSS Redux

Tools

Webpack Vite Git GitHub GitLab Bitbucket Selenium Cypress Playwright JUnit PyTest Jest Cucumber TestNG JMeter k6 Appium Maven Gradle npm pip Postman / Swagger Salesforce SAP Workday Microsoft 365 WordPress Drupal Contentful Power Automate Zapier n8n

Backend

Node.js Express.js Django Flask FastAPI Spring Boot ASP.NET Core Ruby on Rails NestJS Laravel GraphQL gRPC REST APIs Apollo Celery Kong Apigee

Mobile

React Native Flutter Android / Kotlin iOS / SwiftUI .NET MAUI Ionic

Cloud & DevOps

Linux Windows Server macOS VMware vSphere Hyper-V KVM Proxmox OpenStack Citrix AWS Microsoft Azure Google Cloud Oracle Cloud (OCI)Alibaba Cloud AWS Lambda Azure Functions Cloudflare Workers Vercel Netlify Heroku DigitalOcean Docker Kubernetes Helm OpenShift Rancher Nomad Terraform Ansible Pulumi AWS CloudFormation Chef Puppet OpenTofu Packer Vagrant Crossplane Jenkins GitHub Actions GitLab CI/CD CircleCI Azure DevOps Argo CD Flux Spinnaker Tekton CI/CD Nginx Apache HTTP Server Istio Envoy Traefik HAProxy Caddy Cilium / Calico Apache Kafka RabbitMQ NATS Apache Pulsar AWS SQS/SNS Amazon Kinesis MQTT

Databases

MySQL PostgreSQL Microsoft SQL Server Oracle Database MariaDB SQLite Amazon Aurora MongoDB Redis Cassandra Elasticsearch DynamoDB Neo4j InfluxDB Memcached Couchbase Firebase

Data & AI

Snowflake Google BigQuery Amazon Redshift Azure Synapse Databricks Delta Lake Apache Spark Apache Hadoop Apache Airflow dbt Apache Flink Apache NiFi Trino / Presto Apache Hive Apache Beam Fivetran Talend Pandas / NumPy Jupyter Tableau Power BI TensorFlow PyTorch Hugging Face LLM APIs scikit-learn Keras LangChain MLflow Kubeflow Amazon SageMaker Vertex AI Vector DBs Machine Learning Deep Learning

SRE & Reliability

Prometheus Grafana Datadog Splunk New Relic ELK / Elastic Stack OpenTelemetry Jaeger Grafana Loki Fluentd Dynatrace AppDynamics PagerDuty Sentry Nagios Zabbix SRE SLO/SLI Design Observability Incident Response AIOps

Security & Identity

Cloudflare Wireshark HashiCorp Vault SonarQube Snyk OPA / Policy-as-Code Trivy Falco Checkmarx CrowdStrike Burp Suite Nessus OWASP ZAP Metasploit cert-manager Zero Trust DevSecOps Okta / SSO SIEM

Product & PM

Jira ServiceNow Confluence Slack Microsoft Teams Notion Trello Asana Agile / Scrum Product Management

Design

Figma UI/UX Design