About The RoleWe're a fast-growing B2B SaaS company in the customer communication space, helping businesses of all sizes automate and streamline interactions across channels like WhatsApp, Instagram, and SMS — all from a single, AI-powered inbox. With around 100 people on the team and Series A/B backing, we're building serious infrastructure and have strong traction across industries including insurance, e-commerce, automotive, and healthcare.We're looking for a Senior Backend Engineer to join our engineering team in Berlin (hybrid). You'll take full ownership of backend features end-to-end, influence long-term architecture decisions, and help shape the engineering culture as we scale.What You'll DoDesign, build, and ship new backend features directly impacting customersImprove platform performance and reliability to enhance the user experienceParticipate in architectural discussions and contribute to long-term technical strategyShape internal development processes and best practicesBring your own ideas to the product — ownership and initiative are genuinely valued hereWhat We're Looking ForMust-haves:Strong proficiency in Java and TypeScriptExperience with Quarkus or Spring Boot (or comparable JVM frameworks)Hands-on experience with AWS and Terraform for cloud infrastructureImportant to have:Strong PostgreSQL experienceExperience with AI/LLM libraries such as LangGraphBackground building scalable backend systems for communications or messaging platformsSolid computer science fundamentalsNice to have:Familiarity with technologies like Kotlin, OpenSearch, SQS/SNS/SES, Lambda, or CloudFrontExperience with observability tooling (e.g. Datadog, Sentry)Prior work at companies like Intercom, Front, Kustomer, Trengo, Bird, or similar omnichannel/customer communication platformsLocation & Work ArrangementLocation: Berlin, GermanyWork style: Hybrid (office + remote flexibility)Visa sponsorship: AvailableCompensation & BenefitsCompensation is competitive and commensurate with experience. Details will be shared during the interview process.

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