Senior Python Engineer

YOUR ROLE:

At SiteGround we are currently in a high-growth phase, expanding our software engineering teams as we are scaling our own suite of products.

This is a Remote-friendly role, with occasional company-covered visits to our headquarters in Sofia.

This role is for people who like the “product + engineering” intersection: you’ll work on backend systems where small architectural choices show up immediately in UX, cost, latency, reliability, and safety. A key part of everyday work: we actively use and integrate the major model ecosystems—OpenAI, Google (Gemini), and Anthropic—and you’ll regularly make pragmatic decisions around model choice, routing, fallback strategies, and evaluation.

In the role of Senior Python Engineer, you’ll build and evolve the Python services behind our AI experiences — most notably AI Studio and Coderick AI. You’ll help build the APIs and infrastructure that make AI features fast, scalable, and dependable. Typical problems you’ll help solve:

• Turning “cool demo” flows into repeatable product behavior;
• Making LLM-powered features observable (tracing, metrics), debuggable, and safe;
• Balancing cost vs. quality vs. latency, with real traffic patterns;
• Building reliable tool-calling / agent workflows, and integrating external systems.

YOUR RESPONSIBILITIES:

• Design, develop, and maintain scalable services using Python + FastAPI;
• Build and version APIs used by internal tools and customer-facing products;
• Collaborate closely with AI engineers on core AI functionality (prompt/tool orchestration, retrieval patterns, guardrails, performance);
• Rapidly prototype, then harden: ship features, measure outcomes, iterate;
• Partner with platform engineers on deployment, monitoring, and production operations;
• Troubleshoot incidents, improve stability, and reduce operational load over time;
• Develop internal tooling that improves how teams adopt AI across the company.