> Markdown version of [/jobs/ext/2725450-full-stack-engineer](https://www.wearedevelopers.com/jobs/ext/2725450-full-stack-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # full-stack engineer - **Company:** Cresta's Unified Ai - **Location:** Berlin, Germany (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Clean Code Principles, Application Programming Interfaces (APIs), Big Data, Cloud Computing, Code Review, Databases, Continuous Integration, Customer Data Management, Database Design, Distributed Systems, Elasticsearch, Python (Programming Language), PostgreSQL, Machine Learning, Performance Tuning, Query Optimization, Systems Architecture, Data Storage Technologies, Indexer, Backend, Front End Software Development, Vertica, Restful APIs, Microservices - **Published:** September 5, 2026 - **Apply:** https://startup.jobs/senior-software-engineer-backend-berlin-cresta-2-6696612 ## About the Role * Proven experience as a Backend Engineer with a focus on database design and system architecture. * Strong expertise in ClickHouse or similar columnar databases for managing large-scale, real-time analytical queries. * Hands-on experience with Elasticsearch for indexing and searching large datasets. * Proficient in backend programming languages such as Python, Go. * Experience with RESTful API design and development. * Solid understanding of distributed systems, microservices architecture, and cloud infrastructure. * Experience with performance tuning, data modeling, and query optimization. * Strong problem-solving skills and attention to detail. * Excellent communication and teamwork abilities. ## Description As a Senior full-stack engineer, with a backend focus, you will be at the forefront of shaping the future of customer engagement! As we work towards our vision, you'll be instrumental in delivering timely, actionable insights that drive business growth from day one. We're building a state-of-the-art Customer Data Platform, visualizing relevant insights for businesses post-onboarding and guiding customer engagement across all touch-points. Be part of the team that's redefining the way businesses connect with their customers!, * Design, implement, and maintain backend services and APIs to support applications. * Build and optimize data storage solutions using Postgres, ClickHouse and Elasticsearch to ensure high performance and scalability. * Collaborate with cross-functional teams, including frontend engineers, data scientists, and machine learning engineers, to deliver end-to-end solutions. * Monitor and troubleshoot performance issues in distributed systems and databases. * Write clean, maintainable, and efficient code following best practices for backend development. * Participate in code reviews, testing, and continuous integration efforts. * Ensure security, scalability, and reliability of backend services. * Analyze and improve system architecture, focusing on performance bottlenecks, scaling, and security. ## Related Videos - [From Messy Queries to Scalable Systems - How Data Engineering actually works](https://www.wearedevelopers.com/videos/100203-from-messy-queries-to-scalable-systems-how-data-engineering-actually-works) - [Optimizing Discovery: PostgreSQL's Role in Transforming GetYourGuide's Search](https://www.wearedevelopers.com/videos/1647-optimizing-discovery-postgresql-s-role-in-transforming-getyourguide-s-search) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape) - [Build and Deploy a Fullstack App with Open Source Tooling](https://www.wearedevelopers.com/videos/775-build-and-deploy-a-fullstack-app-with-open-source-tooling) - [Dynamic Entities in .NET: Building Low-Code Systems on Top of Entity Framework Core](https://www.wearedevelopers.com/videos/100218-dynamic-entities-in-net-building-low-code-systems-on-top-of-entity-framework-core) ## Related Articles - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [Fullstack developer salary in Germany [2023]](https://www.wearedevelopers.com/magazine/197-fullstack-developer-salary-in-germany-2023) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline)