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Senior Gen AI Engineer - Bulgaria

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Senior Gen AI Engineer - Bulgaria in Others new

  • TELUS Digital
  • Full time
  • Email
  • Sofia, Bulgaria

Responsibilities

  • Design and extend production-grade LLM applications and agentic workflows, including retrieval, intent detection, clarification, fulfillment, escalation, and human-in-the-loop flows.
  • Build and maintain the conversation engine, flow validation, configuration tooling, and administration experience.
  • Integrate tool-use and agentic protocols and evaluate, benchmark, and tune models across multiple providers.
  • Build resilience through retries, fallback routing, caching, streaming, and rate limiting, while troubleshooting hallucinations, retrieval failures, prompt regressions, model drift, and provider outages.
  • Build player-facing and support-agent-facing React experiences and administer flows, intents, releases, translations, prompts, and evaluations.
  • Write automated tests, build observability and alerting, diagnose performance bottlenecks, participate in on-call rotations, and maintain architectural documentation and runbooks.

Requirements

  • Proven experience building and operating production LLM-powered systems such as chatbots, AI assistants, agent copilots, RAG systems, or LLM orchestration platforms.
  • Strong TypeScript and Node.js engineering skills, including strict-mode TypeScript.
  • Hands-on experience with prompt engineering, RAG pipelines, agent design, tool calling, model evaluation, observability, and failure-mode analysis.
  • Full-stack experience across backend APIs, React UIs, databases, infrastructure, and production operations.
  • Ability to evaluate tradeoffs among model quality, latency, reliability, throughput, and cost, and troubleshoot across prompts, retrieval, models, infrastructure, and application code.
  • Experience modeling complex asynchronous workflows, with state-machine experience preferred.
  • Understanding of REST API design and asynchronous and caching strategies, plus a strong unit, integration, and contract testing culture.
  • Experience working in a monorepo with multiple interconnected services.
  • Bonus: experience with MCP or other agentic tool-use protocols, semantic search and retrieval architectures, AI gateways, LLM observability and evaluation platforms, multiple foundation-model providers, AI copilots or assistants, low-latency or streaming products, or NestJS.
  • Background in customer support or player-support platforms, gaming, or high-volume consumer products is a bonus.

Benefits

  • Hybrid work with an in-office presence in Sofia, Bulgaria.
  • Participation in an on-call rotation and work with a global digital product consultancy.
  • Equal-opportunity employment and a diverse, inclusive workplace.

TELUS Digital

At TELUS, our purpose-driven team works together every day to innovate and do good. From providing technology solutions that make our lives safer and easier, to supporting those who need it most, our inclusive, spirited and giving people are passionate about empowering our customers, communities ...

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