Cresta is a software company using artificial intelligence and real-time coaching to transform the way sales and retention teams learn high-value skills. To do
Senior Software Engineer, Backend – AI Agent Integrations
Location
Canada
Posted
70 days ago
Salary
0
Seniority
Senior
Job Description
Senior Software Engineer, Backend – AI Agent Integrations
Cresta
• Design and build scalable backend services that integrate Cresta’s AI Agents with customers’ CCaaS platforms. • Architect systems that manage real-time conversation state, context propagation, and session lifecycle. • Implement seamless AI-to-human handoff mechanisms, ensuring full context transfer and minimal disruption to the customer experience. • Develop secure and reliable integrations with CCaaS APIs (voice, chat, messaging, routing, agent desktop, etc.). • Collaborate closely with ML engineers and AI researchers to operationalize AI Agent capabilities in live environments. • 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
Job Requirements
- 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.
Benefits
- 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
Related Guides
Related Job Pages
More Backend Engineer Jobs
Senior PHP Fullstack Software Engineer
ThriveCartThe entrepreneurs cart, funnel & course creator. Powering your business, metrics, subscriptions, affiliates & courses.
• Extend backend APIs, business logic, and database queries in PHP • Build and enhance UI components using React and modern JS • Ship features end-to-end: from requirements to production deployment • Debug and fix issues in both legacy and modern code • Write automated tests for backend and frontend flows • Participate in code reviews and technical discussions • Take ownership of specific backend services, API endpoints, or frontend modules • Help migrate legacy PHP/jQuery code to modern full-stack patterns • Improve performance, reliability, and scalability across the stack • Mentor other engineers through pairing and feedback
Summer Internship – Backend Software Engineering Intern
Best EggA consumer FinTech startup, Best Egg provides personalized financial solutions to people who have little to no savings. A division of Marlette Funding, a consumer financing technol
• Build and enhance backend services using Python (FastAPI) • Develop and maintain REST APIs and webhook integrations • Write and optimize SQL queries against relational databases • Support vendor integrations and verification workflows • Contribute to testing, debugging, and improving system reliability • Collaborate with Product and Engineering to deliver features end-to-end
• Develop and maintain RESTful APIs and event-driven integrations (webhooks, messaging); • Work on integrations between payment systems and corporate platforms (ERP); • Manage APIs on API Management platforms (APIM): Publication; • Versioning; • Security policies; • Traffic control (throttling); • Ensure security, performance and scalability requirements; • Participate in defining integration architecture; • Analyze and resolve incidents in critical environments; • Collaborate with technical teams and business areas, including international teams.
• Build distributed, scalable, and fault-tolerant systems in the cloud using Golang. • Develop tools for running and monitoring the system and ensure reliable operations at optimal performance. • Work closely with the product manager and client development teams to define architecture, protocols, and requirements for new functionalities. • Collaborate with the team and contribute to the overall success of the project




