Software Engineer - Agent Orchestration
About The Position
Sela is the market-leading AI voice agent for mortgage lenders. Founded in 2024, we’ve grown significantly and currently count 5 of the 10 largest independent mortgage banks in the U.S. as enterprise customers. The company is at the cutting edge of applying AI to disrupt the phone sales industry, which represents roughly $100B of annual salary. By owning the mortgage vertical, Sela aims to own the consumer relationship and serve as the essential AI infrastructure for high consideration consumer sales. The company has raised $21M+ in total funding, including a $15M Series A in June 2026. The role involves working on challenging problems such as outperforming human sales teams, low-latency real-time infrastructure, 99.9% uptime, enterprise-grade privacy and security, advanced simulation and evaluation systems, flexible A/B testing, and AI scheduler and dialer systems, owning the entire technology stack.
Requirements
- 3–6 years of software engineering experience
- Experience building production LLM applications, agent systems, workflow engines, or other complex backend systems
- Strong Python skills and a deep understanding of software design patterns and best practices
- Experience with agent frameworks such as LangGraph, OpenAI Agents SDK, or similar
- Strong understanding of asynchronous systems, state management, tool execution, and distributed workflows
- Experience using AI coding tools or agents to ship maintainable, clean code
Nice To Haves
- Experience in high-growth startups, ideally at Seed through Series B
Responsibilities
- Own major components of Sela’s in-house agent orchestration framework, from architecture and implementation to reliability in production
- Improve how agents manage context, state, tools, reasoning, and handoffs during real-time conversations
- Extend agents to complete longer-horizon workflows across multiple conversations, channels, and human touchpoints
- Build systems that let specialized agents coordinate and safely share context across parallel sessions
- Add new modalities such as video while creating a consistent agent experience across every channel
- Improve the evaluation, observability, reliability, and safety of agents handling hundreds of thousands of conversations per day
Benefits
- Top-of-market medical, dental, and vision coverage for you and your dependents
- 401(k) with a top-of-market employer match
- Unlimited PTO
- Snacks, weekly team lunches, and dinner on Sela
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What This Job Offers
Job Type
Full-time
Career Level
Mid Level
Education Level
No Education Listed
