Backend Software Engineer II (AI Specialization)

BigCommerce•Austin, TX

2d•Hybrid

About The Position

BigCommerce, part of the Commerce brand family, is seeking a Backend Software Engineer II (AI Specialization) to help explore, prototype, and build powerful product experiences using intelligent AI agents. This role will be at the forefront of defining how users interact with products through natural language, by designing agent-based systems that unify and act on data from various Commerce products (BigCommerce, Makeswift, B2B and B2C) and partner systems. BigCommerce helps merchants increase sales at every stage of their growth, providing the leading e-commerce platform for small startups to large enterprises. Makeswift is focused on building a tool for creative minds to bring their ideas to the world, combining a design tool with production infrastructure, allowing users to build production-ready websites out of live components and bridge the gap between developers and designers.

Requirements

3+ years of experience in backend or full-stack software development, ideally with a focus on AI/MCP/A2A systems
BS or higher degree in Computer Science or related technical field
Strong and proven programming skills in Go
Experience working with LLMs (OpenAI, Anthropic, etc.) and building agentic AI applications
Understanding of prompt engineering concepts
Understanding of RESTful APIs and data integration across systems
Excellent problem-solving skills and ability to work in a fast-paced, exploratory environment
Strong collaboration and communication skills in cross-functional teams.
Strong preference toward execution and delivery

Nice To Haves

Experience with e-commerce platforms or SaaS product development
Background in conversational AI or natural language processing
Familiarity with prompt engineering and chaining tools (LangChain, Semantic Kernel, etc.)
Previous work with rules-based systems, automation tools, or AI copilots

Responsibilities

Design, build, and iterate on AI agents that interact with data across BigCommerce and partner ecosystems to drive automation
Connect agents to MCP (Model Context Protocol) servers that interact with various backend systems (APIs, Databases, etc) to surface their capabilities to the AI agents to drive powerful and intuitive user experiences
Build AI agents that can assist with store management actions, by interpreting user intent and calling necessary api’s.
Develop and integrate AI assistant features directly into the BigCommerce control panel to support natural language queries and actions.
Collaborate with product designers and NLP experts to deliver intuitive, useful, and delightful conversational experiences
Quickly build proof-of-concept solutions to validate relevant user stories
Contribute to internal tooling and frameworks that support LLM fine-tuning, prompt engineering, and safe action execution