Job Url: https://timezest.bamboohr.com/careers/30 Job Description: Role overview  As we expand into AI-powered features, we’re hiring a Senior Software Engineer to lead our integration of large language models (LLMs) into our platform. You’ll design and build the core backend systems that power intelligent ticket categorization, document indexing, vector search, and prompt orchestration—while helping upskill the rest of the team in this emerging space.  You’ll bring both strong Rails experience and LLM expertise, helping us build a scalable, production-grade foundation for new AI-driven capabilities.  What you’ll do  Design and build scalable backend services for LLM workflows—vector embedding, retrieval pipelines, and LLM API integration  Build data pipelines to process, index, and embed ticket content, documents, and structured data  Lead architecture decisions related to LLM orchestration, prompt engineering, context management, and API reliability  Collaborate cross-functionally with product, engineering, and design to take ideas from prototype to production  Drive backend best practices—including code quality, test coverage, observability, and performance  Mentor and guide junior and mid-level engineers through code reviews, system design sessions, and hands-on pairing  What we’re looking for  7+ years of professional software development, including 5+ years in backend roles  3+ years of recent production experience with Ruby on Rails  Strong knowledge of relational databases (PostgreSQL), data modelling, indexing, caching, and performance tuning  Track record of designing secure, scalable, observable backend systems and architectures  Hands-on experience integrating LLM APIs (e.g., OpenAI, Anthropic) into production software. Bonus if within Rails applications.  Excellent system-design skills for search & retrieval workloads, scalable services, and robust data pipelines  Excellent communication skills and the ability to mentor others in a collaborative, fully remote team  Our Stack  Ruby on Rails 7, PostgreSQL, Sidekiq, TypeScript and React, all running on Heroku.  Nice to Have  Frontend experience with TypeScript & React  Previous experience with AI/ML-focused data pipelines in other environments and languages  Experience deploying or self-hosting open-source LLMs (e.g., Mistral, LLaMA) using modern inference frameworks  Previous experience working in a remote role.  What we offer  Competitive salary with equity options  Full remote role, open worldwide providing there is some overlap with engineering team  New company issued machine  Annual company and team trips to gather and get to know each other better  Flexible hours, home-office stipend, annual learning allowance  Full licenses to your favorite coding agent tool (Cursor, Copilot etc)