Senior Software Engineer, Fullstack

Role Summary We are hiring a Senior Software Engineer to help build the future of technical interviewing and assessment across CoderPad . This is a fullstack role for someone who can move across backend services, frontend product surfaces, and AI-powered system design. You will work on user-facing features, production infrastructure, and internal engineering workflows where coding agents and AI-assisted development are part of normal day-to-day execution. This role is remote from Latin America. What You Will Work On Build and ship fullstack product features across candidate and recruiter experiences, from API and data model design to frontend implementation. Improve real-time AI-powered experiences used in interviews and assessments, including model orchestration, streaming UX, tool/function-calling patterns, and reliability. Contribute to systems that integrate multiple LLM providers and require pragmatic handling of latency, cost, observability, and non-deterministic behavior. Develop and improve deterministic internal tooling that helps engineers and agents execute work safely, repeatably, and with strong audibility. Partner across product, design, and platform teams to take ambiguous problems from definition to production rollout. Lead and mentor through code review, using reviews as both a quality gate and a coaching channel for less-experienced engineers. Plan and deliver technical debt, architecture, and observability initiatives that improve long-term system maintaina