Senior Software Engineer, Backend (Berlin)

Cresta is on a mission to turn every customer conversation into a competitive advantage by unlocking the true potential of the contact center. Our platform combines the best of AI and human intelligence to help contact centers discover customer insights and behavioral best practices, automate conversations and inefficient processes, and empower every team member to work smarter and faster. Born from the prestigious Stanford AI lab, Cresta's co-founder and chairman is the German Sebastian Thrun , the genius behind Google X, Waymo, Udacity, and more. Our leadership also includes CEO, Ping Wu , the co-founder of Google Contact Center AI and Vertex AI platform, and co-founder, Tim Sh i , an early member of Open AI. We’ve assembled a world-class team of AI and ML experts, go-to-market leaders, and top-tier investors including Andreessen Horowitz, Greylock Partners, Sequoia, and former ATT CEO John Donovan. Our valued customers include brands like Intuit, Cox Communications, Hilton, and Carmax and we’ve been recognized by Forbes and Bain Consulting as one of the top private AI companies in the world. Join us on this thrilling journey to revolutionize the contact center workforce with AI. The future of work is here, and it's at Cresta. About the role: 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! Responsibilities : 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. Qualifications We Value: 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. Perks Benefits: Paid parental leave to support you and your family Monthly Health Wellness allowance Work from home office stipend to help you succeed in a remote environment Lunch reimbursement for in-office employees PTO: 28 days in Germany Compensation for this position includes a base salary, equity, and a variety of benefits. Actual base salaries will be based on candidate-specific factors, including experience, skillset, and location, and local minimum pay requirements as applicable. Your recruiter can provide further details. We have noticed a rise in recruiting impersonations across the industry, where scammers attempt ... (truncated, view full listing at source)