IT Skills Glossary
Plain-language definitions for the 1,102 skills freehire tags jobs with — what each one is, and who is hiring for it.
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A
- A/B Testing
- ABAC
- ABAP
- Acceptance Criteria
- Accessibility
- Account Executive
- Accounts Payable
- Accounts Receivable
- Active Directory
- ActiveMQ
- Actix
- ADAS
- Adobe Analytics
- Adobe Creative Suite
- Adobe Experience Manager (AEM)
- Adobe XD
- Adp
- AFAS
- After Effects
- Agentforce
- Agentic AI
- Agile
- Ahrefs
- AI
- Ai Enablement
- Airbyte
- Airflow
- Airtable
- AJAX
- AKS
- Allplan
- Alteryx
- Altium
- Amplitude
- Analytics
- Anaplan
- Android
- Angular
- Anomaly Detection
- Ansible
- Ansys
- Anthropic
- Apache Camel
- Apex
- API
- Api Design
- Api Documentation
- API Gateway
- Api Security
- API Testing
- Apigee
- Apollo Io
- AppDynamics
- Appium
- Application Security
- ArcGIS
- ArchiCAD
- ArchiMate
- Argo CD
- Ariba
- Arista
- ARM Templates
- Artifactory
- AS/400
- As9100
- Asana
- Asic
- Assembly
- Astro
- Asyncio
- Athena
- Atlassian
- Aurora
- Auth0
- Authentication
- AutoCAD
- Autodesk Inventor
- AutoGen
- Automation
- AUTOSAR
- Avro
- AWS
- AWS Bedrock
- Aws Glue
- AWS Step Functions
- Azure
- Azure AD
- Azure Application Insights
- Azure Data Factory
- Azure DevOps
- Azure Functions
- Azure Logic Apps
- Azure Monitor
- Azure Service Bus
- Azure Synapse
B
C
- C
- C#
- C++
- CAD
- Cadence Virtuoso
- Calendly
- Camunda
- Can Bus
- Candidate Experience
- CANopen
- Canva
- Capcut
- Cassandra
- CATIA
- Causal Inference
- Ccna
- CCNP
- Ccpa
- CDK
- CentOS
- Ceph
- Certified ScrumMaster
- Cfd
- ChatGPT
- ChromaDB
- Churn Prevention
- ChurnZero
- CI/CD
- CICS
- Cinema 4d
- CircleCI
- Cisco
- Cisco Meraki
- Cism
- Cissp
- Citrix
- Civil 3D
- Claude
- Claude Code
- Clean Architecture
- CLI
- ClickHouse
- ClickUp
- Clio
- Clojure
- Cloud
- Cloud Composer
- Cloud Native
- Cloud Run
- Cloud Security
- Cloudera
- Cloudflare
- CloudFormation
- CloudFront
- CloudTrail
- CloudWatch
- CMake
- CMDB
- Cmmc
- CMMS
- Cmos
- Cnc
- COBOL
- CockroachDB
- Cognos
- Cohere
- Cold Outreach
- Collibra
- Color Grading
- Community Management
- Computer Vision
- Concur
- Confined Space
- Confluence
- Container Security
- Containerd
- Containerization
- Content Marketing
- Contentful
- Contract Drafting
- Contract Lifecycle Management
- Contract Negotiation
- Contractor Safety
- Control-M
- Conversational AI
- Copywriting
- Cordova
- Cority
- Corrective Action
- Cosmos Db
- CouchDB
- Coupa
- CPQ
- CQRS
- Creo
- CrewAI
- CRM
- Crowdstrike
- Cryptocurrency
- Cryptography
- CSPM
- CSS
- Cucumber
- CUDA
- Customer Health Score
- Customer Onboarding
- Customer Retention
- Customer.io
- Cyberark
- Cybersecurity
- Cypress
D
- Dagster
- Dart
- Dask
- DAST
- Data Analytics
- Data Engineering
- Data Governance
- Data Ingestion
- Data Lake
- Data Lineage
- Data Mesh
- Data Mining
- Data Modeling
- Data Pipelines
- Data Quality
- Data Science
- Data Vault
- Data Visualization
- Data Warehousing
- Databricks
- Datadog
- Dataform
- DataOps
- Dataproc
- Dataverse
- DATEV
- Davinci Resolve
- Db2
- dbt
- Debezium
- Debian
- Deep Learning
- DeepSeek
- DeepSpeed
- DeFi
- Delta Lake
- Demand Generation
- Design for Manufacturing (DFM)
- Design of Experiments (DOE)
- Design Patterns
- Design Thinking
- Developer Advocacy
- Developer Experience
- DevOps
- DevSecOps
- Dfars
- DHCP
- Dimensional Modeling
- Distributed Computing
- Distributed Systems
- Distributed Training
- Django
- DLP
- DNS
- Docker
- Docs as Code
- Domain-Driven Design (DDD)
- Dropwizard
- Druid
- Drupal
- DSPy
- DuckDB
- DynamoDB
- Dynatrace
E
- E-commerce
- EC2
- Eclipse
- ECS
- EDI
- EDR
- EIGRP
- EKS
- Elasticsearch
- Elixir
- ELK
- ELT
- Email Marketing
- Embedded Linux
- Embedded Software
- Embedded Systems
- Embeddings
- Ember.js
- Emergency Response
- Employee Relations
- Employer Branding
- Enablon
- Enscape
- Entra ID
- Environmental Compliance
- Envoy
- EPA
- EPLAN
- Erlang
- ERP
- EtherCAT
- Ethereum
- Ethernet
- ethers.js
- ETL
- Event Driven Architecture
- Eventbridge
- EVM
- EVPN
- Exact Online
- Express.js
F
- FAISS
- Fall Protection
- Fargate
- FastAPI
- Fastify
- fastlane
- Fea
- Feature Engineering
- Fedramp
- FHIR
- Fiber
- FigJam
- Figma
- Final Cut Pro
- Financial Modeling
- Financial Reporting
- Fine Tuning
- FinOps
- Fintech
- Firebase
- Firestore
- Firewall
- Firmware
- First Aid
- Fivetran
- Flask
- Flink
- Flutter
- Flux
- FMEA
- Fortinet
- Fortran
- FPGA
- FreeRTOS
- Freshdesk
- Fsharp
- Full Cycle Recruiting
- Fusion 360
G
- Gainsight
- Game Development
- Gap Analysis
- Gatling
- GCP
- Gd T
- GDB
- Gdpr
- Gemini
- General Ledger
- Generative AI
- Generative Engine Optimization
- Gin
- GIS
- Git
- Gitflow
- GitHub
- GitHub Actions
- Github Copilot
- GitLab
- GitOps
- GKE
- Go
- Go-to-Market
- Godot
- Gong
- Google Ads
- Google Analytics
- Google Search Console
- Google Tag Manager
- Gorilla
- GPU
- Gradle
- Grafana
- Grails
- GraphQL
- Groovy
- gRPC
H
I
- I-129
- I-130
- I2c
- IaaS
- IAM
- IBM MQ
- Iceberg
- Iis
- Illustrator
- Image Processing
- Incident Investigation
- InDesign
- Industrial Hygiene
- InfiniBand
- Influencer Marketing
- InfluxDB
- Information Architecture
- Infrastructure as Code
- Integration Testing
- Intelex
- IntelliJ IDEA
- Interaction Design
- Intrusion Detection
- Intune
- InVision
- Ionic
- iOS
- IoT
- IPsec
- IPv6
- Iso 13485
- ISO 14001
- Iso 26262
- ISO 27001
- ISO 45001
- Iso 9001
- Istio
- Itar
- ITIL
- ITSM
- iTWO
J
K
L
- LabVIEW
- Lakehouse
- Lambda
- LangChain
- Langfuse
- LangGraph
- LangSmith
- Laravel
- LDAP
- Lead Generation
- Legal Research
- Lgpd
- LiDAR
- Lifecycle Marketing
- LIMS
- Link Building
- LinkedIn Ads
- LinkedIn Recruiter
- Linkedin Sales Navigator
- LINQ
- Linux
- Liquibase
- LiteLLM
- LlamaIndex
- LLM
- LLMOps
- Lockout/Tagout
- Logstash
- Loki
- Looker
- Looker Studio
- Lottie
- Lua
- Lucidchart
- LWC
M
- Machine Guarding
- Machine Learning
- macOS
- MadCap Flare
- Mailchimp
- Mainframe
- MariaDB
- Marketing Automation
- Marketo
- Master Data Management
- Mastra
- Matillion
- MATLAB
- Matplotlib
- Maven
- Maximo
- Maya
- MBSE
- MCP
- MDM
- Medallion Architecture
- Memcached
- Mendix
- Meta Ads
- Metabase
- Metadata Management
- Metasploit
- Microcontrollers
- Micronaut
- Microservices
- Microsoft Access
- Microsoft Copilot
- Microsoft Defender
- Microsoft Dynamics
- Microsoft Exchange
- Microsoft Fabric
- Microsoft Project
- Microsoft Purview
- Microsoft Sentinel
- Microstation
- MicroStrategy
- Midjourney
- Milvus
- Minitab
- Miro
- Mistral
- MITRE ATT&CK
- Mixpanel
- MLflow
- MLOps
- MobX
- Mocha
- Mockito
- Modbus
- Model Deployment
- Model Evaluation
- Monday.com
- MongoDB
- Motion Design
- Motion Graphics
- MPLS
- MQTT
- Mulesoft
- Multithreading
- MVC
- MVVM
- MySQL
N
O
P
- PagerDuty
- Paid Social
- Palo Alto Networks
- pandas
- Parquet
- Pcb
- Pci Dss
- PCIe
- PEFT
- Pega
- Penetration Testing
- People Analytics
- PeopleSoft
- Perforce
- Performance Management
- Perl
- Permit To Work
- Personal Protective Equipment (PPE)
- pgvector
- Photoshop
- PHP
- PHPUnit
- Pinecone
- Pinot
- Pipeline Management
- PKI
- PL/SQL
- Playwright
- Plc
- PLM
- Plotly
- PMP
- Podman
- Polars
- PostgreSQL
- Postman
- Power Apps
- Power Automate
- Power BI
- Power Platform
- Power Query
- PowerShell
- PPC
- Pre-sales
- Preact
- Predictive Analytics
- Predictive Modeling
- Prefect
- Premiere Pro
- Presto
- Primavera P6
- Process Improvement
- Process Modeling
- Process Safety Management (PSM)
- Procore
- Professional Scrum Master
- PROFIBUS
- PROFINET
- Program Management
- Prometheus
- Prompt Engineering
- Proof of Concept
- Protobuf
- ProtoPie
- Prototyping
- Proxmox
- Pulsar
- Pulumi
- Puppet
- Puppeteer
- Pydantic
- PySpark
- pytest
- Python
- PyTorch
Q
R
- R
- RabbitMQ
- RAG
- Rails
- Rancher
- RBAC
- RCRA
- RDBMS
- RDMA
- RDS
- React
- React Native
- React Testing Library
- Recommendation Systems
- Redis
- Redshift
- Redux
- Regulatory Compliance
- Reinforcement Learning
- Remix
- Renewal Management
- Requirements Elicitation
- Requirements Gathering
- REST
- REST Assured
- Revenue Recognition
- Reverse Engineering
- Revit
- RHEL
- Rhino
- Risk Assessment
- RLHF
- Robot Framework
- Root Cause Analysis
- ROS 2
- Route 53
- RPA
- RSpec
- Rtl
- RTOS
- Ruby
- Rust
- RxJS
S
- S3
- SaaS
- SAFe Agile
- Safety Audit
- Safety Management System
- SageMaker
- SailPoint
- Sales Cloud
- Sales Enablement
- Sales Engineering
- Salesforce
- Salesforce Marketing Cloud
- Salesloft
- SAML
- SAP
- SAP BTP
- SAP FICO
- SAP Fiori
- Sap Hana
- SAP MM
- SAP S/4HANA
- SAS
- Sase
- Sass
- SAST
- SBOM
- SCADA
- Scala
- SCCM
- scikit-learn
- SCIM
- SciPy
- Screaming Frog
- Scrum
- Scss
- ScyllaDB
- SD-WAN
- SDLC
- Sdn
- Seaborn
- Secrets Management
- Secure Coding
- Selenium
- Semantic Kernel
- Semantic Search
- Semrush
- Sensor Fusion
- Sentence Transformers
- Sentry
- SEO
- SerDes
- Serverless
- Service Desk
- ServiceNow
- SFTP
- SGLang
- SharePoint
- Shopify
- SIEM
- Siemens NX
- Signal Integrity
- Signal Processing
- Simulink
- Sinatra
- Six Sigma
- Sketch
- SketchUp
- Slack
- Slurm
- Smart Contracts
- SmartRecruiters
- Smartsheet
- SMTP
- SNMP
- Snowflake
- Snowpark
- SNS
- Snyk
- SOA
- SOAP
- SoapUI
- SOC 2
- Solana
- Solarwinds
- Soldering
- Solidity
- SolidJS
- SolidWorks
- Solr
- Solution Design
- SonarQube
- SOQL
- spaCy
- Spark
- Sphera
- Splunk
- Spring
- Sprout Social
- SPSS
- SQL
- SQL Server
- SQLAlchemy
- SQLite
- SQS
- SRE
- SSAS
- SSH
- SSIS
- SSL
- SSO
- SSRS
- Stakeholder Management
- Stata
- Statistics
- Storyboarding
- Storybook
- Strategic Planning
- Streamlit
- Stripe
- Structured Authoring
- Substance Designer
- Substance Painter
- SuccessFactors
- Succession Planning
- Supabase
- Superset
- Svelte
- SVN
- Swagger
- Swift
- SwiftUI
- Sybase
- Symfony
- SysML
- SystemVerilog
T
- Tableau
- Tabular Editor
- Tailwind
- Talend
- Talent Management
- Talent Sourcing
- Tcl
- TCP/IP
- TDD
- Teamcenter
- Teamcity
- Technical Discovery
- Technical Evangelism
- Technical Screening
- Technical SEO
- Technical Writing
- Tekton
- TensorFlow
- TensorRT
- Teradata
- Terraform
- Terragrunt
- Test Automation
- Testify
- TestNG
- Testrail
- Thinkwise
- Threat Hunting
- Threat Intelligence
- Threat Modeling
- Three.js
- Thrift
- Ticket Resolution
- TikTok Ads
- Time Series
- TimescaleDB
- TLS
- TOGAF
- Tokenomics
- Tomcat
- Toolbox Talks
- TOPdesk
- Transformers
- Travis CI
- Trello
- Trino
- Triton
- TypeScript
- Typography