Senior Backend Engineer

ABOUT THE ROLE

We'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 DO

• Design, build, and ship new backend features directly impacting customers
• Improve platform performance and reliability to enhance the user experience
• Participate in architectural discussions and contribute to long-term technical strategy
• Shape internal development processes and best practices
• Bring your own ideas to the product — ownership and initiative are genuinely valued here

WHAT WE'RE LOOKING FOR

Must-haves

• Strong proficiency in Java and TypeScript
• Experience with Quarkus or Spring Boot (or comparable JVM frameworks)
• Hands-on experience with AWS and Terraform for cloud infrastructure

Important to have

• Strong PostgreSQL experience
• Experience with AI/LLM libraries such as LangGraph
• Background building scalable backend systems for communications or messaging platforms
• Solid computer science fundamentals

Nice to have

• Familiarity with technologies like Kotlin, OpenSearch, SQS/SNS/SES, Lambda, or CloudFront
• Experience with observability tooling (e.g. Datadog, Sentry)
• Prior work at companies like Intercom, Front, Kustomer, Trengo, Bird, or similar omnichannel/customer communication platforms

LOCATION & WORK ARRANGEMENT

• Location: Berlin, Germany
• Work style: Hybrid (office + remote flexibility)
• Visa sponsorship: Available

COMPENSATION & BENEFITS

Compensation is competitive and commensurate with experience. Details will be shared during the interview process.