Senior Software Engineer, Backend - Platform Team

Senior Software Engineer, Backend - Platform Team — Remote

We are building various backend systems to enable customer integrations, including agent assist and authentication services.

About the role

Cresta’s Core Platform underpins the company’s product portfolio. The role focuses on building backend systems to support agent assist and authentication.

Why This Role Is Unique

• Enterprise-Grade Integrations: Design robust integrations with major CCaaS platforms and customer systems.
• Specialized Auth Experience: Join the Cresta auth team and help build specialized authentication systems to authenticate users, service accounts, virtual agents, server workloads, and cloud‑based authentication for external integrations.
• Agent Assist Integrations: Work directly with the frontend platform team to build solutions for agent assist integrations for various channels such as chat and email and help rollout these integrations in customer environments.

Responsibilities

• Contribute to building the best-in-class company in addition to building the best-in-class product.
• Architect systems that manage real-time conversation state, context propagation, and session lifecycle.
• Play a substantial role in the agent assist integration process (chat and email) and authentication engineering team.
• Work with Cresta product and engineering teams to build and continuously improve the Cresta platform and new product requirements.
• Stay closely with customers and their requirements, analyze the technical tradeoffs, own the customer‑facing deliverables.
• Demonstrate the engineering best practices in deliverables and daily work. Uphold others to the same high standards.
• Technical ownership in a substantial part of the Cresta authentication stack.
• Ensure high availability, low latency, and strong observability for real-time conversation systems.
• Implement authentication, authorization, compliance, and enterprise security best practices across integrations.
• Drive improvements in reliability, performance, and scalability in production environments handling high interaction volumes.

Qualifications We Value

• Bachelor’s degree in Computer Science or related field.
• 5+ years of experience building scalable backend systems in production environments.
• Strong experience designing and maintaining robust APIs (REST, gRPC).
• Solid understanding of distributed systems and real-time communication architectures.
• Experience integrating with third‑party enterprise platforms and APIs.
• Experience working with CCaaS platforms or contact center systems is a strong plus.
• Familiarity with AI agents, virtual agents, or LLM‑based systems is a plus.
• Experience with containerized environments (Kubernetes, Docker).
• Experience with cloud platforms such as AWS, GCP, or Azure.
• Strong understanding of system reliability, observability, and security in enterprise environments.
• Experience in building authentication systems is a plus.
• We offer Cresta employees a variety of medical, dental, and vision plans, designed 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

Compensation for this position includes a base salary, equity, and a variety of benefits. Actual base salaries will be based on candidate‑specific factors, including experience, skillset, and location, and local minimum pay requirements as applicable. We are actively hiring for this role in the US and Canada. Your recruiter can provide further details.