{"company":{"id":565,"name":"Customer.io","domain":"customer.io","url":"https://alion.io/company/customer-io"},"answer":"Customer.io builds mostly with JavaScript, Go, Python, SQL. Its stack also includes GCP, AWS, MySQL, Snowflake. JavaScript is named in 6 of the 21 job postings Customer.io published in the last 12 months (29%). Counted by Alion from the job postings of Customer.io, updated Oct 13, 2026.","window_days":365,"postings_analysed":21,"open_postings":16,"technologies_in_use":45,"modernity_score":90,"ai_adoption":true,"technologies":[{"name":"AI Agents","layer":"practices","postings":12,"share":0.5714,"required":10,"open_postings":11,"first_seen":"2026-04-02","last_seen":"2026-10-06","median_stated_pay_usd":200000},{"name":"GCP","layer":"cloud","postings":6,"share":0.2857,"required":5,"open_postings":5,"first_seen":"2026-04-03","last_seen":"2026-09-17","median_stated_pay_usd":null},{"name":"JavaScript","layer":"languages","postings":6,"share":0.2857,"required":1,"open_postings":4,"first_seen":"2026-04-02","last_seen":"2026-10-08","median_stated_pay_usd":null},{"name":"Go","layer":"languages","postings":5,"share":0.2381,"required":5,"open_postings":5,"first_seen":"2026-04-02","last_seen":"2026-09-24","median_stated_pay_usd":200000},{"name":"AWS","layer":"cloud","postings":5,"share":0.2381,"required":4,"open_postings":4,"first_seen":"2026-04-03","last_seen":"2026-09-17","median_stated_pay_usd":null},{"name":"Claude","layer":"ai","postings":4,"share":0.1905,"required":4,"open_postings":2,"first_seen":"2026-05-26","last_seen":"2026-09-16","median_stated_pay_usd":null},{"name":"Python","layer":"languages","postings":4,"share":0.1905,"required":4,"open_postings":2,"first_seen":"2026-05-26","last_seen":"2026-07-10","median_stated_pay_usd":null},{"name":"MySQL","layer":"data","postings":4,"share":0.1905,"required":3,"open_postings":4,"first_seen":"2026-04-03","last_seen":"2026-09-17","median_stated_pay_usd":null},{"name":"React.js","layer":"frameworks","postings":3,"share":0.1429,"required":3,"open_postings":3,"first_seen":"2026-04-02","last_seen":"2026-09-24","median_stated_pay_usd":null},{"name":"SQL","layer":"languages","postings":3,"share":0.1429,"required":3,"open_postings":2,"first_seen":"2026-05-26","last_seen":"2026-07-10","median_stated_pay_usd":null},{"name":"Snowflake","layer":"data","postings":3,"share":0.1429,"required":3,"open_postings":3,"first_seen":"2026-05-26","last_seen":"2026-07-30","median_stated_pay_usd":null},{"name":"Cursor","layer":"tools","postings":2,"share":0.0952,"required":2,"open_postings":1,"first_seen":"2026-07-21","last_seen":"2026-09-16","median_stated_pay_usd":null},{"name":"Model Context Protocol","layer":"tools","postings":2,"share":0.0952,"required":2,"open_postings":0,"first_seen":"2026-05-26","last_seen":"2026-09-16","median_stated_pay_usd":null},{"name":"Okta","layer":"cloud","postings":2,"share":0.0952,"required":2,"open_postings":0,"first_seen":"2026-05-26","last_seen":"2026-09-16","median_stated_pay_usd":null},{"name":"TypeScript","layer":"languages","postings":2,"share":0.0952,"required":2,"open_postings":1,"first_seen":"2026-04-02","last_seen":"2026-05-26","median_stated_pay_usd":null},{"name":"dbt","layer":"tools","postings":2,"share":0.0952,"required":2,"open_postings":2,"first_seen":"2026-05-26","last_seen":"2026-06-10","median_stated_pay_usd":null},{"name":"A/B Testing","layer":"practices","postings":1,"share":0.0476,"required":1,"open_postings":1,"first_seen":"2026-08-13","last_seen":"2026-08-13","median_stated_pay_usd":null},{"name":"Apex","layer":"languages","postings":1,"share":0.0476,"required":1,"open_postings":0,"first_seen":"2026-07-10","last_seen":"2026-07-10","median_stated_pay_usd":null},{"name":"BigQuery","layer":"data","postings":1,"share":0.0476,"required":1,"open_postings":1,"first_seen":"2026-05-26","last_seen":"2026-05-26","median_stated_pay_usd":null},{"name":"ChatGPT","layer":"ai","postings":1,"share":0.0476,"required":1,"open_postings":0,"first_seen":"2026-09-16","last_seen":"2026-09-16","median_stated_pay_usd":null},{"name":"DLP","layer":"cloud","postings":1,"share":0.0476,"required":1,"open_postings":0,"first_seen":"2026-08-26","last_seen":"2026-08-26","median_stated_pay_usd":null},{"name":"FastAI","layer":"frameworks","postings":1,"share":0.0476,"required":1,"open_postings":1,"first_seen":"2026-07-10","last_seen":"2026-07-10","median_stated_pay_usd":null},{"name":"Function Calling","layer":"practices","postings":1,"share":0.0476,"required":1,"open_postings":1,"first_seen":"2026-07-10","last_seen":"2026-07-10","median_stated_pay_usd":null},{"name":"GitHub","layer":"cloud","postings":1,"share":0.0476,"required":1,"open_postings":1,"first_seen":"2026-07-10","last_seen":"2026-07-10","median_stated_pay_usd":null},{"name":"Google BigQuery","layer":"data","postings":1,"share":0.0476,"required":1,"open_postings":1,"first_seen":"2026-05-26","last_seen":"2026-05-26","median_stated_pay_usd":null},{"name":"Kotlin","layer":"languages","postings":1,"share":0.0476,"required":1,"open_postings":1,"first_seen":"2026-07-21","last_seen":"2026-07-21","median_stated_pay_usd":null},{"name":"Kubernetes","layer":"cloud","postings":1,"share":0.0476,"required":1,"open_postings":1,"first_seen":"2026-07-10","last_seen":"2026-07-10","median_stated_pay_usd":null},{"name":"LLM","layer":"ai","postings":1,"share":0.0476,"required":1,"open_postings":1,"first_seen":"2026-07-10","last_seen":"2026-07-10","median_stated_pay_usd":null},{"name":"Lovable","layer":"tools","postings":1,"share":0.0476,"required":1,"open_postings":0,"first_seen":"2026-09-16","last_seen":"2026-09-16","median_stated_pay_usd":null},{"name":"Machine Learning","layer":"practices","postings":1,"share":0.0476,"required":1,"open_postings":1,"first_seen":"2026-05-26","last_seen":"2026-05-26","median_stated_pay_usd":null},{"name":"Microsoft Excel","layer":"tools","postings":1,"share":0.0476,"required":1,"open_postings":1,"first_seen":"2026-07-30","last_seen":"2026-07-30","median_stated_pay_usd":null},{"name":"Node JS","layer":"languages","postings":1,"share":0.0476,"required":1,"open_postings":0,"first_seen":"2026-05-26","last_seen":"2026-05-26","median_stated_pay_usd":null},{"name":"OpenAI Codex","layer":"tools","postings":1,"share":0.0476,"required":1,"open_postings":1,"first_seen":"2026-07-21","last_seen":"2026-07-21","median_stated_pay_usd":null},{"name":"Platform Engineering","layer":"practices","postings":1,"share":0.0476,"required":1,"open_postings":0,"first_seen":"2026-05-26","last_seen":"2026-05-26","median_stated_pay_usd":null},{"name":"Prompt Engineering","layer":"practices","postings":1,"share":0.0476,"required":1,"open_postings":1,"first_seen":"2026-07-10","last_seen":"2026-07-10","median_stated_pay_usd":null},{"name":"RAG","layer":"practices","postings":1,"share":0.0476,"required":1,"open_postings":0,"first_seen":"2026-05-26","last_seen":"2026-05-26","median_stated_pay_usd":null},{"name":"Salesforce Flow","layer":"tools","postings":1,"share":0.0476,"required":1,"open_postings":0,"first_seen":"2026-07-10","last_seen":"2026-07-10","median_stated_pay_usd":null},{"name":"Swift","layer":"languages","postings":1,"share":0.0476,"required":1,"open_postings":1,"first_seen":"2026-07-21","last_seen":"2026-07-21","median_stated_pay_usd":null},{"name":"VPN","layer":"practices","postings":1,"share":0.0476,"required":1,"open_postings":0,"first_seen":"2026-08-26","last_seen":"2026-08-26","median_stated_pay_usd":null},{"name":"Vercel","layer":"cloud","postings":1,"share":0.0476,"required":1,"open_postings":0,"first_seen":"2026-09-16","last_seen":"2026-09-16","median_stated_pay_usd":null},{"name":"Windows","layer":"cloud","postings":1,"share":0.0476,"required":1,"open_postings":0,"first_seen":"2026-09-16","last_seen":"2026-09-16","median_stated_pay_usd":null},{"name":"DynamoDB","layer":"data","postings":1,"share":0.0476,"required":0,"open_postings":1,"first_seen":"2026-07-10","last_seen":"2026-07-10","median_stated_pay_usd":null},{"name":"Google Bigtable","layer":"data","postings":1,"share":0.0476,"required":0,"open_postings":1,"first_seen":"2026-07-10","last_seen":"2026-07-10","median_stated_pay_usd":null},{"name":"PostgreSQL","layer":"data","postings":1,"share":0.0476,"required":0,"open_postings":1,"first_seen":"2026-07-10","last_seen":"2026-07-10","median_stated_pay_usd":null},{"name":"PyTorch","layer":"frameworks","postings":1,"share":0.0476,"required":0,"open_postings":1,"first_seen":"2026-07-10","last_seen":"2026-07-10","median_stated_pay_usd":null}],"own_products":[],"changes":{"first_appeared":[{"name":"Cursor","first_seen":"2026-07-21"}],"rising":[],"falling":[],"not_seen_180d":[]},"similar_stacks":[{"name":"Spotify","url":"https://alion.io/company/spotify/technologies","shared_technologies":37},{"name":"Gusto","url":"https://alion.io/company/gusto/technologies","shared_technologies":39},{"name":"Deliveroo","url":"https://alion.io/company/deliveroo/technologies","shared_technologies":37},{"name":"Faire","url":"https://alion.io/company/faire/technologies","shared_technologies":36},{"name":"GoFundMe","url":"https://alion.io/company/gofundme-2/technologies","shared_technologies":36},{"name":"Lovable","url":"https://alion.io/company/lovable/technologies","shared_technologies":36},{"name":"Toast","url":"https://alion.io/company/toasttab/technologies","shared_technologies":37},{"name":"T. Rowe Price","url":"https://alion.io/company/t-rowe-price/technologies","shared_technologies":36}],"html_url":"https://alion.io/company/customer-io/technologies","json_url":"https://alion.io/company/customer-io/technologies.json","license":"CC BY-SA 4.0","meta":{"source":"Alion","built_at":"2026-10-13T04:55:03Z","generated_at":"2026-10-13T05:47:44Z"}}