Fountain builds workforce management software for the world's largest hourly employers. We are an agent-first engineering organization where coding and review agents are integrated into our daily workflow. Our platform team builds the critical systems that enable engineers and agents to ship dependable products at scale.What You’ll be Doing:- Ship platform capabilities across all customer and internal products- Own performance, security, and stability for high-traffic production systems- Enhance agentic systems, including coding agents and observability tools- Lead architectural decisions for human and agentic interfaces- Design reliable code, APIs, and contracts for humans and agents- Collaborate with product and engineering teams to deliver customer impact- Work autonomously and identify problems, ship fixes, and own outcomesWhat you bring:- 5+ years in a professional engineering role, primarily backend, launching production systems- Expert-level systems design; track record re-engineering misaligned systems- Exceptional discernment for technical trade-offs, UX, APIs, and code- Demonstrated experience with agentic or LLM-based systems beyond consumer use- Initiative; thrive in autonomous and ambiguous environments- Excellent written communication across time zones (EU, US, South Africa, India)Nice to have: Designed agent-consumable APIs/tools; early-stage product/startup experience; proficiency with event-driven architectures, monorepos, and/or observability at the platform level.