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Senior Backend Engineer in Green-Tech Startup

Confidential company · Berlin · Posted Jun 2, 2026

Public summary

Innovative green-tech startup in Berlin focused on making buildings CO2-neutral is hiring a Senior Backend Engineer. The role involves developing high-quality data streaming and analytical software, collaborating in a cross-functional team, and supporting the company's decarbonisation platform. The position offers a full-time, permanent contract with hybrid work options and a dynamic, sustainability-driven work culture.

Location and work setup

Location
Berlin
Remote status
Hybrid
German requirement signal
No German Required Detected
Detected job language
English

Responsibilities

Develop high-quality data streaming and analytical software design and architecture. Identify, prioritise, and execute software development life-cycle tasks to deliver real business impact. Own code quality and maintain best practices. Review and understand code from other team members. Collaborate with cross-functional teams including backend, frontend, product, and external vendors to enhance products.

Qualifications

Extensive backend software development experience (7+ years), preferably in startups. Strong analytical and problem-solving skills, ability to work independently and provide leadership in a fast-changing IoT environment. Proficiency in Kotlin/Java for backend development. In-depth knowledge of AWS services including ECS, RDS, Cloudwatch, and OpenSearch. Experience with Kafka for data streaming and REST API design principles. Motivation, experience, and willingness to learn are highly valued.

Skills

Backend Development Kotlin Java AWS ECS RDS Cloudwatch OpenSearch Kafka Data Streaming REST API Design Software Architecture IoT