Lightspark
Senior Software Engineer, Data & AI
$200K–$238K
Los Angeles HQ · Senior · Full-time · Posted Sep 18, 2026
- Experience
- 4+ years shipping and maintaining production systems; data engineering, ML engineering, and backend/full-stack backgrounds are all considered.
About the job
Build and extend Lightspark’s internal data and AI platform so business teams can run workflows on trusted data and AI agents.
What you'll do
- Build and own the AI platform, including agent harnesses, MCP servers, tool integrations, access and context services, sandboxed execution, and cost tracking.
- Work with business teams to understand and replace manual workflows, then hand off adopted systems.
- Extend data infrastructure and share responsibility for monitoring, alerting, and data reliability.
What they ask for
- 4+ years of experience shipping and maintaining production systems.
- Built an internal platform or workflow system adopted by other teams.
- Built with LLM APIs, agent frameworks, and MCP in production.
- Strong TypeScript/Node or Python fundamentals, willingness to work in both, and fluency with a cloud data warehouse.
Nice to have
- Experience in payments, crypto, or blockchain.
- Based in or open to relocating to Los Angeles, California.
Pay
$200K – $238K USD base salary
Tools
TypeScript/Node, Python, BigQuery, Snowflake, Databricks, DBT, MCP, LLM APIs
AI focus
Build internal AI agents and platform infrastructure that connect models to company data, tools, and workflows; this is not an ML infrastructure, model-training, or prompt-engineering role.
Model-written summary · the original posting is authoritative