As part of the AI agents team, you'll work at the intersection of classic product engineering and AI - building the underlying systems that let our AI agents reason, act, and improve. Your work has a direct, measurable line to customer revenue.
This opportunity requires you to be located in the United States.
What You'll Do:- Design, build, and own the systems that power our Voice AI and Text AI agents - handling voice calls, SMS, and email conversations end-to-end across every customer touchpoint.
- Craft system-level prompts that shape agent behavior, reliability, and outcomes, with a deep understanding of how prompt structure translates into real-world performance.
- Develop tool-calling integrations so agents can take reliable, real-world actions - booking appointments, looking up customer data and warm-transferring to humans - safely and predictably.
- Build LLM-as-a-judge evaluations and AI observability - telemetry, traces, and quality dashboards - to measure agent performance, catch regressions, and continuously raise the bar on reliability.
- Partner closely with product and design - bring a sharp product sense to every feature, balancing user needs, business goals, and technical trade-offs.
- Apply industry-standard engineering practices: Thorough code review, automated testing, CI/CD, progressive delivery with feature flags and A/B experimentation, observability, and clear technical documentation.
- Mentor and guide junior engineers, fostering a culture of learning and technical excellence.
What it Takes to Succeed:- Hands-on experience building with LLMs in production - prompt engineering, tool/function calling, evaluation frameworks, or agent orchestration.
- Solid backend experience in one or more of Elixir, Go, Python, or a comparable server-side language, with the curiosity and adaptability to pick up new languages and frameworks as our stack evolves.
- Comfort working across the stack, from data model and LLM/agent logic to APIs and (where needed) UI.
- A track record of leading projects from spec to launch alongside multiple contributors.
- Deep sense of ownership and bias for action - you take ambiguous problems from start to finish, work across team boundaries to unblock yourself, and stay accountable through delivery.
- Clear communication skills and the ability to collaborate effectively with technical and non-technical stakeholders.
- Eager to keep up with the ever-changing landscape of AI capabilities - actively exploring new models, tools, and techniques, and thoughtfully applying them to your work and to the product.
What You'll Get- Based on the anticipated level of experience we are seeking, we expect the compensation range for this role to be between $112,000 and $216,000
- Full responsibility for projects from day one, a collaborative team, and a dynamic work environment.
- This opportunity has the option to be fully remote in all locations across the US
- Effective your first day: Full medical, vision, and dental
- Mental health support and services via Modern Health
- 15 days PTO (accrual begins on date of hire and increases with 2+ years of tenure thereafter), 12 paid holidays, plus one floating holiday
- Up to 14 weeks of parental leave
- Monthly wellness stipend
- 401(k) retirement savings plan
- Employee stock purchase plan
- Professional development reimbursement
- Work from home reimbursement
- Shape the future of AI-driven customer service
- Build alongside founders and leaders who value speed, ownership,and ambition
- Solve challenging problems and see the impact on real businesses and customers
- Join a team of builders who care about great engineering, fast execution, and each other
