Cresta

Senior Software Engineer, Backend, Voice Platform

Cresta

full-time

Posted on:

Origin:  • 🇨🇦 Canada

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Job Level

Senior

Tech Stack

CloudDistributed SystemsDockerGoKubernetesMicroservicesPython

About the role

  • At Cresta, the Voice Platform team is on a mission to transform real-time voice infrastructure and contact center automation through AI-powered backend systems. As a Senior Software Engineer on the Voice Platform team, you’ll be responsible for designing, scaling, and operating the distributed services that power Cresta’s voice ecosystem.
  • Lead the design and development of scalable, distributed backend microservices in Golang (with some Python for AI-related services).
  • Own and evolve voice platform integrations with large-scale enterprise communication and contact center systems.
  • Drive initiatives to expand platform capabilities, including bi-directional SIP, WebRTC integrations, multilingual support, advanced transcription, and real-time translation.
  • Build systems that power conversation intelligence for both remote and in-person interactions.
  • Improve observability, reliability, and self-service troubleshooting across the platform.
  • Ensure performance, scalability, and resilience of real-time voice pipelines running in the cloud.
  • Collaborate with cross-functional teams (ML, product, solution architects) to design end-to-end solutions for customer deployments.
  • Provide technical guidance, mentorship, and best practices to other engineers on the team.

Requirements

  • Bachelor’s degree in Computer Science or related field.
  • 5+ years of experience in backend system development, distributed systems, or cloud infrastructure.
  • Expertise in Go (or a similar systems language) with strong API and service design skills.
  • Proven experience with scalable architectures using microservices, workflow orchestration, distributed caching, and cloud databases.
  • Strong knowledge of Kubernetes, Docker, and modern cloud infrastructure.
  • Solid understanding of networking, real-time communication protocols, and cloud security best practices.
  • Demonstrated ability to lead complex technical projects from design through production.
  • Bonus: experience with voice systems, telephony, or real-time media platforms.