Senior Software Engineer, AI/LLM
Builds and optimizes LLM-driven features, agentic workflows, and proprietary AI models for Bubble's visual app development platform. Requires Master's/PhD + 2+ years or 5+ years ML/software experience with transformers, RAG, and AI tools.
About the job
Responsibilities
- Improve LLM reasoning & retrieval techniques to enhance Bubble's AI-powered development tools.
- Design and build agentic workflows to enable multi-step AI-driven app generation.
- Fine-tune & optimize LLMs for AI-assisted app-building workflows.
- Build and optimize proprietary AI models trained on domain-specific datasets.
- Work closely with the AI team to scale AI research into production.
- Optimize LLM performance and accuracy when interpreting and modifying applications.
Requirements
- Master's or PhD in AI, ML, NLP, or related field + 2+ years industry experience with LLMs, AI model optimization, NLP pipelines OR 5+ years as ML or Software Engineer.
- Strong experience with transformer models, retrieval-augmented generation (RAG), dataset curation.
- Experience with agentic AI workflows, chatbot-style LLM interactions.
- Understanding of embeddings, vector search, AI model evaluation.
- Proficient in Python, Typescript, Hugging Face, LangChain, Mastra.
Tech Stack
- Frontend: Typescript, SolidJS
- Backend: Typescript, Node.js
- AI/ML: Python, LLM APIs (OpenAI, Anthropic), LangChain
- Infrastructure: AWS, CDK/Terraform, ECS, Redis, Postgres
Compensation & Benefits
- Salary: $201,000 - $261,000
- Comprehensive health coverage, 401(k) matching, wellness stipends, flexible PTO, sabbatical program (~$20K additional value)
Skills
LLMs, Python, TypeScript, Hugging Face, LangChain, RAG, Transformer Models, Agentic AI, Embeddings, Vector Search
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