{"company":{"id":55560,"name":"Upstream","domain":"upstreamsystems.com","url":"https://alion.io/company/upstreamsystems"},"answer":"Upstream builds mostly with Java, SQL, Python, Go. Its stack also includes ElasticSearch, Redis, Linux, Apache Kafka. ElasticSearch is named in 6 of the 11 job postings Upstream published in the last 12 months (55%). Counted by Alion from the job postings of Upstream, updated Oct 1, 2026.","window_days":365,"postings_analysed":11,"open_postings":8,"technologies_in_use":47,"modernity_score":73,"ai_adoption":false,"technologies":[{"name":"CI/CD","layer":"practices","postings":6,"share":0.5455,"required":6,"open_postings":4,"first_seen":"2025-12-08","last_seen":"2026-10-01","median_stated_pay_usd":null},{"name":"ElasticSearch","layer":"data","postings":6,"share":0.5455,"required":5,"open_postings":4,"first_seen":"2025-12-08","last_seen":"2026-10-01","median_stated_pay_usd":null},{"name":"Redis","layer":"data","postings":6,"share":0.5455,"required":5,"open_postings":4,"first_seen":"2025-12-08","last_seen":"2026-10-01","median_stated_pay_usd":null},{"name":"Java","layer":"languages","postings":5,"share":0.4545,"required":5,"open_postings":3,"first_seen":"2025-12-08","last_seen":"2026-10-01","median_stated_pay_usd":null},{"name":"SQL","layer":"languages","postings":5,"share":0.4545,"required":5,"open_postings":3,"first_seen":"2025-12-08","last_seen":"2026-10-01","median_stated_pay_usd":null},{"name":"Linux","layer":"cloud","postings":4,"share":0.3636,"required":4,"open_postings":2,"first_seen":"2026-04-01","last_seen":"2026-10-01","median_stated_pay_usd":null},{"name":"Python","layer":"languages","postings":4,"share":0.3636,"required":4,"open_postings":2,"first_seen":"2026-04-01","last_seen":"2026-10-01","median_stated_pay_usd":null},{"name":"Apache Kafka","layer":"cloud","postings":3,"share":0.2727,"required":3,"open_postings":2,"first_seen":"2025-12-08","last_seen":"2026-05-27","median_stated_pay_usd":null},{"name":"Git","layer":"tools","postings":3,"share":0.2727,"required":3,"open_postings":2,"first_seen":"2025-12-08","last_seen":"2026-05-27","median_stated_pay_usd":null},{"name":"Hazelcast","layer":"frameworks","postings":3,"share":0.2727,"required":3,"open_postings":2,"first_seen":"2025-12-08","last_seen":"2026-05-27","median_stated_pay_usd":null},{"name":"Hibernate","layer":"frameworks","postings":3,"share":0.2727,"required":3,"open_postings":2,"first_seen":"2025-12-08","last_seen":"2026-05-27","median_stated_pay_usd":null},{"name":"Kubernetes","layer":"cloud","postings":3,"share":0.2727,"required":3,"open_postings":2,"first_seen":"2026-07-01","last_seen":"2026-10-01","median_stated_pay_usd":null},{"name":"Maven","layer":"tools","postings":3,"share":0.2727,"required":3,"open_postings":2,"first_seen":"2025-12-08","last_seen":"2026-05-27","median_stated_pay_usd":null},{"name":"RabbitMQ","layer":"cloud","postings":3,"share":0.2727,"required":3,"open_postings":2,"first_seen":"2025-12-08","last_seen":"2026-05-27","median_stated_pay_usd":null},{"name":"Spring Framework","layer":"frameworks","postings":3,"share":0.2727,"required":3,"open_postings":2,"first_seen":"2025-12-08","last_seen":"2026-05-27","median_stated_pay_usd":null},{"name":"Couchbase","layer":"data","postings":3,"share":0.2727,"required":2,"open_postings":2,"first_seen":"2025-12-08","last_seen":"2026-10-01","median_stated_pay_usd":null},{"name":"PostgreSQL","layer":"data","postings":3,"share":0.2727,"required":2,"open_postings":2,"first_seen":"2026-07-01","last_seen":"2026-10-01","median_stated_pay_usd":null},{"name":"AWS","layer":"cloud","postings":2,"share":0.1818,"required":2,"open_postings":1,"first_seen":"2026-07-01","last_seen":"2026-10-01","median_stated_pay_usd":null},{"name":"Ansible","layer":"tools","postings":2,"share":0.1818,"required":2,"open_postings":1,"first_seen":"2026-07-01","last_seen":"2026-10-01","median_stated_pay_usd":null},{"name":"Azure","layer":"cloud","postings":2,"share":0.1818,"required":2,"open_postings":1,"first_seen":"2026-07-01","last_seen":"2026-10-01","median_stated_pay_usd":null},{"name":"Docker","layer":"tools","postings":2,"share":0.1818,"required":2,"open_postings":1,"first_seen":"2026-07-01","last_seen":"2026-10-01","median_stated_pay_usd":null},{"name":"GitLab","layer":"cloud","postings":2,"share":0.1818,"required":2,"open_postings":1,"first_seen":"2026-07-01","last_seen":"2026-10-01","median_stated_pay_usd":null},{"name":"GitLab CI","layer":"cloud","postings":2,"share":0.1818,"required":2,"open_postings":1,"first_seen":"2026-07-01","last_seen":"2026-10-01","median_stated_pay_usd":null},{"name":"Go","layer":"languages","postings":2,"share":0.1818,"required":2,"open_postings":1,"first_seen":"2026-07-01","last_seen":"2026-10-01","median_stated_pay_usd":null},{"name":"Grafana","layer":"cloud","postings":2,"share":0.1818,"required":2,"open_postings":1,"first_seen":"2026-07-01","last_seen":"2026-10-01","median_stated_pay_usd":null},{"name":"Helm","layer":"tools","postings":2,"share":0.1818,"required":2,"open_postings":1,"first_seen":"2026-07-01","last_seen":"2026-10-01","median_stated_pay_usd":null},{"name":"Jenkins","layer":"tools","postings":2,"share":0.1818,"required":2,"open_postings":1,"first_seen":"2026-07-01","last_seen":"2026-10-01","median_stated_pay_usd":null},{"name":"Loki","layer":"tools","postings":2,"share":0.1818,"required":2,"open_postings":1,"first_seen":"2026-07-01","last_seen":"2026-10-01","median_stated_pay_usd":null},{"name":"PHP","layer":"languages","postings":2,"share":0.1818,"required":2,"open_postings":1,"first_seen":"2026-07-01","last_seen":"2026-10-01","median_stated_pay_usd":null},{"name":"Prometheus","layer":"tools","postings":2,"share":0.1818,"required":2,"open_postings":1,"first_seen":"2026-07-01","last_seen":"2026-10-01","median_stated_pay_usd":null},{"name":"Terraform","layer":"tools","postings":2,"share":0.1818,"required":2,"open_postings":1,"first_seen":"2026-07-01","last_seen":"2026-10-01","median_stated_pay_usd":null},{"name":"VMWare","layer":"cloud","postings":2,"share":0.1818,"required":2,"open_postings":1,"first_seen":"2026-07-01","last_seen":"2026-10-01","median_stated_pay_usd":null},{"name":"Cassandra","layer":"data","postings":2,"share":0.1818,"required":1,"open_postings":1,"first_seen":"2026-07-01","last_seen":"2026-10-01","median_stated_pay_usd":null},{"name":"Microsoft Excel","layer":"tools","postings":2,"share":0.1818,"required":1,"open_postings":2,"first_seen":"2026-07-28","last_seen":"2026-10-01","median_stated_pay_usd":null},{"name":"A/B Testing","layer":"practices","postings":1,"share":0.0909,"required":1,"open_postings":1,"first_seen":"2026-07-28","last_seen":"2026-07-28","median_stated_pay_usd":null},{"name":"Bash","layer":"languages","postings":1,"share":0.0909,"required":1,"open_postings":0,"first_seen":"2026-07-01","last_seen":"2026-07-01","median_stated_pay_usd":null},{"name":"DLP","layer":"cloud","postings":1,"share":0.0909,"required":1,"open_postings":1,"first_seen":"2026-04-01","last_seen":"2026-04-01","median_stated_pay_usd":null},{"name":"Express","layer":"frameworks","postings":1,"share":0.0909,"required":1,"open_postings":1,"first_seen":"2026-10-01","last_seen":"2026-10-01","median_stated_pay_usd":null},{"name":"JavaScript","layer":"languages","postings":1,"share":0.0909,"required":1,"open_postings":1,"first_seen":"2026-10-01","last_seen":"2026-10-01","median_stated_pay_usd":null},{"name":"Memcached","layer":"data","postings":1,"share":0.0909,"required":1,"open_postings":1,"first_seen":"2026-10-01","last_seen":"2026-10-01","median_stated_pay_usd":null},{"name":"Next.js","layer":"frameworks","postings":1,"share":0.0909,"required":1,"open_postings":1,"first_seen":"2026-10-01","last_seen":"2026-10-01","median_stated_pay_usd":null},{"name":"React.js","layer":"frameworks","postings":1,"share":0.0909,"required":1,"open_postings":1,"first_seen":"2026-10-01","last_seen":"2026-10-01","median_stated_pay_usd":null},{"name":"SIEM","layer":"cloud","postings":1,"share":0.0909,"required":1,"open_postings":1,"first_seen":"2026-04-01","last_seen":"2026-04-01","median_stated_pay_usd":null},{"name":"TCP/IP","layer":"practices","postings":1,"share":0.0909,"required":1,"open_postings":1,"first_seen":"2026-04-01","last_seen":"2026-04-01","median_stated_pay_usd":null},{"name":"TypeScript","layer":"languages","postings":1,"share":0.0909,"required":1,"open_postings":1,"first_seen":"2026-10-01","last_seen":"2026-10-01","median_stated_pay_usd":null},{"name":"Unix","layer":"cloud","postings":1,"share":0.0909,"required":1,"open_postings":0,"first_seen":"2026-07-01","last_seen":"2026-07-01","median_stated_pay_usd":null},{"name":"Node JS","layer":"languages","postings":1,"share":0.0909,"required":0,"open_postings":1,"first_seen":"2026-10-01","last_seen":"2026-10-01","median_stated_pay_usd":null}],"own_products":[],"changes":{"first_appeared":[{"name":"Microsoft Excel","first_seen":"2026-07-28"},{"name":"Kubernetes","first_seen":"2026-07-01"},{"name":"PostgreSQL","first_seen":"2026-07-01"},{"name":"AWS","first_seen":"2026-07-01"},{"name":"Ansible","first_seen":"2026-07-01"},{"name":"Azure","first_seen":"2026-07-01"},{"name":"Docker","first_seen":"2026-07-01"},{"name":"GitLab","first_seen":"2026-07-01"}],"rising":[],"falling":[],"not_seen_180d":[]},"similar_stacks":[{"name":"Government of Moscow","url":"https://alion.io/company/mos/technologies","shared_technologies":39},{"name":"Ipotekabank OTP Group","url":"https://alion.io/company/ipotekabank-otp-group/technologies","shared_technologies":36},{"name":"Luxoft","url":"https://alion.io/company/luxoft/technologies","shared_technologies":36},{"name":"Ping Identity","url":"https://alion.io/company/ping-identity/technologies","shared_technologies":38},{"name":"Kyivstar","url":"https://alion.io/company/kyivstar/technologies","shared_technologies":38},{"name":"Lenskart","url":"https://alion.io/company/lenskart/technologies","shared_technologies":37},{"name":"Comarch","url":"https://alion.io/company/comarch/technologies","shared_technologies":37},{"name":"VPBank","url":"https://alion.io/company/vpbank-com-vn/technologies","shared_technologies":38}],"html_url":"https://alion.io/company/upstreamsystems/technologies","json_url":"https://alion.io/company/upstreamsystems/technologies.json","license":"CC BY-SA 4.0","meta":{"source":"Alion","built_at":"2026-10-01T23:34:27Z","generated_at":"2026-10-02T02:59:33Z"}}