Principal Ruby, JavaScript and Java jobs in Europe
Last sniff: 26 Aug 2026 14:01 · next sniff in ~103 min · each company re-checked every ~6h · Skill radar · RSS
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On the scent
36 matching jobs
| Role | Company | Where | Level | Salary | Technologies | Sniffed | |
|---|---|---|---|---|---|---|---|
| Principal Developer New | Amdaris | București, Bucharest, Romania; Tim… | Principal | — | JavaKotlinPHPSpring BootSpring+7 | 2h ago | |
| Principal Developer New | Spectrum IT | Newbury, West Berkshire | Principal | up to £70k | Java | 8h ago | |
| Principal IT Consultant - Java / Cloud Systeme / Strategie (m/w/d) New | Digital Frontiers GmbH & Co. KG | Stuttgart, Baden-Württemberg | Principal | — | Java | 8h ago | |
| Principal IT Consultant - Java / Cloud Systeme / Strategie (m/w/d) | Digital Frontiers GmbH & Co. KG | Deutschland | Principal | — | Java | 1d ago | |
| Principal Presales Customer Engineer (based in Canberra) | Cloudflare | Distributed | Principal | — | PythonJavaScript | 1d ago | |
| Principal Java Engineer (Java/Kotlin, AWS & Frontend) | Amdaris | Chișinău, Chișinău, Moldova | Principal | — | JavaKotlinPHPSpring BootSpring+7 | 1d ago | |
| Principal Java Engineer (Java/Kotlin, AWS & Frontend) | Amdaris | Kyiv, Kyiv, Ukraine | Principal | — | JavaKotlinPHPSpring BootSpring+7 | 1d ago | |
| Principal Machine Learning Engineer - Applied AI & LLMs (x/f/m) | Doctolib | Paris, Paris, France | Principal | — | JavaKotlinPythonTypeScriptAWS+1 | 1d ago | |
| Principal Software Engineer, Instrument Simulations | Lilasciences | Cambridge, MA USA | Principal | — | JavaPythonC++ | 1d ago | |
| Principal Software Engineer - Data Lakes | Fivetran | Remote, Germany, EMEA | Principal | — | JavaC++PostgreSQLAWSAzure+4 | 1d ago | |
| Senior Principal Software Engineer, Machine Learning | Toast | Remote, US | Principal | — | JavaKotlinKafkaDistributed systems | 1d ago | |
| Principal Software Engineer, Data Platform | Toast | Dublin, Ireland | Principal | — | JavaKotlinKafkaPostgreSQLAWS+1 | 1d ago | |
| Principal Software Engineer, Configuration Platform | Toast | Remote, US | Principal | — | JavaKotlinPostgreSQLAWSRabbitMQ+2 | 1d ago | |
| Principal Software Engineer - AI Foundations | Toast | Dublin, Ireland | Principal | — | JavaKotlinTypeScript | 1d ago | |
| Principal Design Engineer | Alphasense | Helsinki, Uusimaa, Finland | Principal | — | TypeScriptJavaScript | 1d ago | |
| Principal Design Engineer | Alphasense | Remote - United Kingdom | Principal | — | TypeScriptJavaScript | 1d ago | |
| Principal Software Engineer | Harnessinc | U.S. (Remote) | Principal | $150k–226k | JavaPostgreSQLMySQLSQLAWS+4 | 1d ago | |
| Principal Software Engineer (Libraries Platform) | Chainguard | United Kingdom - Remote | Principal | — | JavaPythonJavaScriptRust.NET+3 | 1d ago | |
| Principal Data Engineer | Indicium Ai | Lisbon, PT | Principal | — | JavaScalaPythonKafkaAWS+4 | 2d ago | |
| Principal Software Engineer, Senior Java Engineer, Account Executive, | FusionAuth | Varies between REMOTE (in USA, als… | Principal | €170k–200k | JavaPostgreSQLMySQLDockerKubernetes | 2d ago | |
| Principal Content Engineer | Cloudflare | Hybrid; In-Office | Principal | $230k–317k | TypeScriptJavaScript | 2d ago | |
| Principal Software Engineer, Workers Deploy & Config | Cloudflare | In-Office | Principal | $220k–303k | TypeScriptJavaScriptRustC++Kubernetes+3 | 2d ago | |
| Principal Presales Engineer (German Speaking) | Twilio | Remote - United Kingdom | Principal | — | JavaAWSAzureGCPREST | 2d ago | |
| Principal Software Engineer - Performance Tuning - Elasticsearch | Elastic | Ireland | Principal | — | JavaJVMDistributed systemsElasticsearch | 2d ago | |
| Principal Software Engineer - Performance Tuning - Elasticsearch | Elastic | Greece | Principal | — | JavaJVMDistributed systemsElasticsearch | 2d ago | |
| Principal Software Engineer - Performance Tuning - Elasticsearch | Elastic | Romania | Principal | — | JavaJVMDistributed systemsElasticsearch | 2d ago | |
| Principal Software Engineer - Performance Tuning - Elasticsearch | Elastic | Portugal | Principal | — | JavaJVMDistributed systemsElasticsearch | 2d ago | |
| Principal Software Engineer - Performance Tuning - Elasticsearch | Elastic | Norway | Principal | — | JavaJVMDistributed systemsElasticsearch | 2d ago | |
| Principal Software Engineer - Performance Tuning - Elasticsearch | Elastic | Poland | Principal | — | JavaJVMDistributed systemsElasticsearch | 2d ago | |
| Principal Software Engineer - Performance Tuning - Elasticsearch | Elastic | Spain | Principal | — | JavaJVMDistributed systemsElasticsearch | 2d ago | |
| Principal Java Engineer - Distributed Systems, Serverless - Elasticsea | Elastic | Norway | Principal | — | JavaEvent-drivenDistributed systemsElasticsearch | 2d ago | |
| Principal Java Engineer - Distributed Systems, Serverless - Elasticsea | Elastic | Spain | Principal | — | JavaEvent-drivenDistributed systemsElasticsearch | 2d ago | |
| Principal Java Engineer - Distributed Systems, Serverless - Elasticsea | Elastic | Romania | Principal | — | JavaEvent-drivenDistributed systemsElasticsearch | 2d ago | |
| Principal Java Engineer - Distributed Systems, Serverless - Elasticsea | Elastic | Greece | Principal | — | JavaEvent-drivenDistributed systemsElasticsearch | 2d ago | |
| Principal Java Engineer - Distributed Systems, Serverless - Elasticsea | Elastic | Portugal | Principal | — | JavaEvent-drivenDistributed systemsElasticsearch | 2d ago | |
| Principal Java Engineer - Distributed Systems, Serverless - Elasticsea | Elastic | Ireland | Principal | — | JavaEvent-drivenDistributed systemsElasticsearch | 2d ago |