Staff Backend Engineer - AI Agent Integrations (Remote)

About the Role

Join Cresta as a Staff Backend Engineer focused on AI Agent Integrations. This remote role offers the chance to lead the development of cutting-edge AI solutions that enhance customer interactions in real-time. At Cresta, we are on a mission to transform customer conversations into a competitive advantage by leveraging AI and human intelligence.

What You'll Do

• Lead the architecture and evolution of Cresta’s AI Agent integration framework across CCaaS platforms.
• Design scalable, extensible backend systems that manage real-time conversation state, session lifecycle, and context propagation.
• Establish architectural patterns for AI-to-human handoff that ensure durability, reliability, and seamless customer experience.
• Define integration strategies for voice, chat, messaging, routing, and agent desktop APIs across enterprise platforms.
• Drive system design for high availability, low latency, and fault tolerance in real-time environments.
• Set standards for observability, monitoring, incident response, and operational excellence.
• Partner closely with ML engineers to operationalize AI Agent capabilities into production-grade systems.
• Influence technical roadmap and prioritization in collaboration with engineering leadership.
• Mentor senior engineers and raise the bar for backend engineering excellence across the organization.
• Lead complex cross-team technical initiatives from design through production rollout.

Requirements

• Bachelor’s degree in Computer Science or related field.
• 8+ years of experience building scalable backend systems in production environments.
• Demonstrated experience leading architecture for large-scale distributed systems.
• Deep expertise in API design (REST, gRPC) and service-oriented architectures.
• Strong understanding of real-time communication systems and low-latency system design.
• Experience designing integrations with third-party enterprise platforms and APIs.
• Proven track record of driving technical direction across teams.
• Experience with containerized environments (Kubernetes, Docker).
• Experience with cloud platforms such as AWS, GCP, or Azure.
• Strong expertise in reliability engineering, observability, and enterprise-grade security.

Nice to Have

• Experience with CCaaS platforms, contact center systems, or real-time communications is highly valued.
• Familiarity with AI Agents, LLM-based systems, or AI orchestration platforms is a strong plus.

What We Offer

• Comprehensive medical, dental, and vision plans tailored to fit you and your family’s needs.
• Paid parental leave to support you and your family.
• Monthly Health & Wellness allowance.
• Work from home office stipend to help you succeed in a remote environment.
• Lunch reimbursement for in-office employees.
• PTO: 3 weeks in Canada.
• Compensation includes a base salary, equity, and a variety of benefits.