Senior Backend Developer

Job details

Work model

Not provided by source

Salary

Not listed by source

Location

Berlin

Job description

About the Role A fast-growing, Series A AI search analytics SaaS company based in Berlin is looking for a Senior Backend Developer to architect and build the systems powering its AI-driven recommendation engine. You'll work at the intersection of scalable infrastructure and cutting-edge AI integrations, collaborating closely with product, data, and frontend teams to ship reliable, high-quality software. This is a fully on-site role (Berlin office, 5 days/week). The company operates in the AI/ML space, helping marketing teams track, analyze, and optimize brand performance across AI search platforms. Backed by Series A funding and trusted by thousands of brands and agencies, the team is scaling quickly and looking for engineers who thrive in a high-ownership, fast-moving environment. What You'll Do • Architect and build backend systems that power real-time AI-driven recommendations. • Design, implement, and maintain scalable REST and GraphQL APIs, data pipelines, and database models. • Integrate with AI model APIs (OpenAI, Claude, Perplexity, Gemini, Llama, and others) to support live recommendation features. • Develop and maintain automated tests (unit and integration) and CI/CD pipelines to ensure quality and rapid delivery. • Enforce security best practices, authentication/authorization, and data privacy across backend services. • Implement end-to-end changes across backend services with clean, maintainable, well-styled code. • Translate product and data requirements into robust technical specifications and solutions. • Leverage AI-assisted development tools (e.g., Cursor) to enhance productivity while keeping committed code concise and maintainable. What We're Looking For Required: • Deep proficiency in TypeScript. • Hands-on experience with Google Cloud Platform (GCP), including Cloud Functions, Cloud Tasks, PostgreSQL, and Firestore. • Proven experience designing and building scalable REST and/or GraphQL APIs and data pipelines for AI-driven features. • Experience integrating with AI model APIs (OpenAI, Claude, Perplexity, Gemini, Llama, etc.) for real-time use cases. • Strong system design and architectural decision-making skills. • Experience implementing automated testing (unit/integration) and CI/CD pipelines. • Knowledge of security best practices, authentication/authorization, and data privacy in backend services. • Ability to match an existing codebase's style and implement changes end-to-end. • Excellent collaboration skills across product, data, and frontend teams. • A demonstrated track record of exceptional performance or notable achievements. Nice to Have: • Experience with AI productivity tooling (e.g., Cursor or similar). • Background at companies working in AI/ML infrastructure, LLM tooling, or marketing analytics SaaS. Visa sponsorship: Not available. Candidates must be authorized to work in Germany. Compensation & Benefits • Salary: $75,000 – $120,000 USD annually (or equivalent), depending on experience. • High-ownership role with meaningful impact on a core product used by thousands of brands and agencies. • Work with a technically strong, fast-moving team on problems at the frontier of AI search. Location • Berlin, Germany - fully on-site, 5 days per week. • Remote work is not available for this role. Find more English Speaking Jobs in Germany on Arbeitnow