Clera

Senior Backend Engineer

Berlin, Germany

Full-Time

On-site

TLDR

Own backend features end-to-end, steer long-term architecture decisions, and shape engineering culture as a fast-growing B2B SaaS scales.

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.

Benefits

Visa Sponsorship

Visa sponsorship: Available.