Cresta Tech Stack

AI-powered contact center platform for agents and automation

Software Development Sunnyvale, California 201–500 employees Founded 2017 Privately Held

Cresta operates a contact center platform combining AI agents with human-augmented assistance, built on Vertex AI and OpenAI with orchestration via Kubernetes and event-driven architecture (Elasticsearch, ClickHouse). The engineering-heavy hiring mix (59 roles) skews senior and staff levels, reflecting active work on AI agent development, ML infrastructure, and production-scale challenges—most notably ASR quality, ai-human handoffs, and scaling automation across enterprise deployments. Recent adoption of SIP and WebRTC alongside iPaaS signals deepening voice-channel integration.

Tech Stack 68 technologies

Core StackVertex AI OpenAI Kubernetes Helm Terraform CloudFormation AWS Go Python PostgreSQL ClickHouse Elasticsearch React Vite Node.js Docker Salesforce Zapier Slack Gong Apex Playwright Google Contact Center AI cert-manager Kustomize IAM AWS EKS SIP WebRTC SOQL+36 more

AdoptingSIP WebRTC MCP iPaaS

What Cresta Is Building

◆Challenges

Automating inefficient processes
Improving asr quality
Inefficient contact center processes
Scaling ai systems for production environments
Scalable authentication systems
Reducing manual conversation handling
Complex enterprise deals
Ai-human handoff
High system availability
Discovering customer insights

▲Active Projects

Ai agent development
Performance optimization
Ai agent integration
Evaluation and benchmarking infrastructure
Customer data platform
Machine learning infrastructure
Regional expansion strategy
Proof-of-value engagements
Real-time ai assistance
Multilingual translation pipelines

Hiring Activity

Accelerating130 roles · 65 in 30d

Department

Engineering

Sales

Product

Marketing

Support

Data

Finance

Seniority

Senior

Mid

Director

Junior

Manager

Staff

Intern

Notable leadership hires: Sales Director, Field Technology Director, Sales Development Director, Program Director

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About Cresta

Cresta is a contact center AI platform headquartered in Sunnyvale, founded in 2017, serving mid-market and enterprise customers across financial services, hospitality, and communications. The product operates as a unified layer: AI agents handle defined workflows, real-time coaching augments live agent calls, and post-interaction analytics surface coaching and quality insights. The architecture spans voice (SIP, WebRTC), chat, Salesforce integration, and observability tooling (Gong, Slack). Teams report deployment challenges around ASR reliability, handoff logic, and conversation volume scaling—problems the current project roadmap directly addresses through ML infrastructure work and evaluation frameworks.

HeadquartersSunnyvale, California

Company Size201–500 employees

Founded2017

Hiring MarketsCanada, United States, Germany, Romania, United Kingdom, Australia, India, Taiwan

Frequently Asked Questions

What tech stack does Cresta use?

Cresta uses Vertex AI and OpenAI for LLM backbone, Kubernetes (EKS) for orchestration, PostgreSQL and ClickHouse for data, Elasticsearch for search, React/Node.js for frontend, and integrations to Salesforce, Gong, and Slack. Voice and chat are handled via SIP/WebRTC.

Where is Cresta hiring?

Cresta is hiring across United States, Canada, Germany, Romania, United Kingdom, Australia, India, and Taiwan—with notable field and sales leadership roles in addition to engineering.