Cresta · 2 days ago
Senior Software Engineer, Backend (AI Agent Integrations)
Cresta provides a unified AI platform for conversational AI agents, human agent augmentation, and conversation intelligence. The Senior Software Engineer, Backend will build production-grade backend systems that integrate AI Agents with CCaaS platforms, support real-time conversations, manage context and state, and enable seamless handoffs to human agents.
Artificial Intelligence (AI)Customer ServiceTelecom & CommunicationsCall CenterIntelligent SystemsMachine LearningNatural Language ProcessingTelecommunications
H1B Sponsor LikelyUnicorn with $2B valuation
Responsibilities
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
Qualification
Required
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 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
Preferred
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
Benefits
A variety of medical, dental, and vision plans designed to fit employees' and their families' needs
Paid parental leave to support employees and their families
Monthly Health & Wellness allowance
Work from home office stipend to help employees succeed in a remote environment
Lunch reimbursement for in-office employees
PTO: 3 weeks in Canada
Equity
Company
Cresta
AI platform for contact centers and customer conversations.
H1B Sponsorship
Cresta has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
79%
Represents job field similar to this job
Engineering and Development
Product Management
Marketing
Trends of Total Sponsorships
*2026 (13)
2025 (9)
2024 (6)
2023 (2)
2022 (10)
2021 (4)
2020 (3)
Funding
Current Stage
Late StageTotal Funding
$276MKey Investors
Qatar Investment Authority,World Innovation LabTiger Global ManagementSequoia Capital
2024-11-19Series D· $125M
2022-03-17Series C· $80M
2021-03-31Series B· $50M
Leadership Team
Ping Wu
CEO
Recent News
Cision PR Newswire
2026-08-21
Business Standard India
2026-08-12
Morningstar.com
2026-08-11
Company data provided by crunchbase