Similarweb

Senior Backend Engineer building scalable distributed services, data access layers, and long-running LLM-powered workflows for Similarweb’s AI-first analytics products. The role combines backend architecture, production reliability, large-scale data systems, and AI-augmented development.

Similarweb is hiring a Senior Full Stack Developer to build large-scale, highly available B2C products across frontend and backend. The role sits on an entrepreneurial Incubation team and offers substantial end-to-end product ownership in a hybrid Prague work environment.

Build Similarweb’s company-wide AI platform, including the agent runtime, tool and data layer, model gateway, and evaluation infrastructure. This backend-focused role enables engineers, analysts, and business teams to ship reliable AI agents and workflows at scale.

Build the AI Studio platform at Similarweb by designing LLM-powered agents that answer complex market research questions, generate reports, and create interactive dashboards. The role focuses on agent architectures, tool and data integrations, and improving AI quality.

Build the resilient backend platform that powers Similarweb’s company-wide AI ecosystem, including agent runtimes, model gateways, data pipelines, and observability systems. This senior role focuses on turning AI prototypes into scalable, fault-tolerant production services.

Build Similarweb’s company-wide AI platform, powering reliable agents and AI workflows used by engineers, analysts, data scientists, and business teams. This high-impact role focuses on agent runtimes, tool integrations, model gateways, and evaluation infrastructure.

Senior Backend Engineer responsible for building the scalable infrastructure, platform services, and developer tools that power Similarweb’s core B2B products. The role combines backend development, platform engineering, production reliability, and evaluation of AI tools for software development.

Senior DevOps Engineer responsible for designing and operating large-scale cloud infrastructure, building automation, and improving platform reliability. The role also focuses on AI-driven automation and infrastructure for LLM and agentic workflows.