Senior AI Builder

Replit is an agentic AI software-creation platform for creating, launching, and growing apps, websites, tools, and businesses through natural language.

Foster City, United States
About Replit

Replit combines an AI agent with integrated application infrastructure—including authentication, databases, hosting, monitoring, integrations, and enterprise controls—to let users build and deploy software from one workspace.

View jobs by Replit

Skills

Candidate Availability

Required and preferred rules are kept separate and reflect the wording in the original posting.

About the Role

You will design, architect, and ship AI-powered internal platforms for operational departments. You will translate business needs into software, build front-end and back-end systems, orchestrate AI workflows, integrate third-party tools, operate production platforms, and partner with stakeholders to improve outcomes.

Requirements

  • Bachelor’s or master’s degree in a technical or technology-business field, or an exceptional non-traditional background with a strong shipped portfolio
  • Portfolio of shipped software products, including AI-powered applications
  • Experience running a business or working at a fast-scaling startup
  • Modern software engineering practices including version control, code review, deployment pipelines, and production debugging
  • Experience with large language model providers, APIs, tool calling, and structured outputs
  • Experience designing prompt and tool-call architectures, selecting models, and optimizing AI cost and latency
  • Programming proficiency in Python and TypeScript or JavaScript
  • Experience with relational databases, SQL, and modern data tooling
  • Written and verbal communication skills for technical and non-technical stakeholders
  • Ability to operate autonomously in ambiguous, fast-moving environments

Responsibilities

  • Design, architect, and ship AI-powered internal platforms
  • Translate business requirements into technical specifications and shipped software
  • Own front-end interfaces, back-end services, data models, integrations, and AI model orchestration
  • Architect large language model pipelines, retrieval-augmented generation, and agentic workflows
  • Evaluate AI models for cost, latency, quality, reliability, and task performance
  • Design evaluation frameworks, test datasets, scoring rubrics, and regression tests
  • Optimize AI systems for cost and performance
  • Partner with department leads to identify inefficiencies and prioritize solutions
  • Conduct stakeholder interviews and requirements-gathering sessions
  • Present technical work and operational outcomes to executive leadership
  • Implement integrations with HR, support, CRM, applicant tracking, project management, and identity platforms
  • Maintain production platforms, security updates, observability, error handling, and performance monitoring
  • Respond to production incidents and iterate from user feedback and telemetry
  • Document architectural decisions, system designs, and operational procedures
  • Onboard future team members

Benefits

  • Equity
  • 401(k) program with 4% match for US employees
  • Health, dental, vision, and life insurance
  • Short-term and long-term disability insurance
  • Paid parental, medical, and caregiver leave
  • Flexible time off and holidays
  • Commuter benefits for in-office US employees
  • Monthly wellness stipend
  • In-office setup reimbursement
  • Quarterly team gatherings
  • In-office amenities