Senior Software Engineer, Backend (Voice Platform)

Cresta; Toronto; Hybrid; CAD 125,000 - 150,000; Full time

Job summary

A leading technology company in Toronto is seeking a Senior Software Engineer for the Voice Platform team. You will design and enhance AI-powered backend systems, focusing on scalable microservices and integrations with enterprise communication systems. Ideal candidates will have over 5 years in backend development, and expertise in Go, Kubernetes, and cloud architectures. Competitive compensation and benefits offered.

Benefits

Medical, dental, and vision plans

Paid parental leave

Monthly Health & Wellness allowance

Work from home office stipend

Lunch reimbursement

3 weeks PTO

Qualifications

• 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 and cloud databases.

Responsibilities

• Lead the design and development of scalable, distributed backend microservices in Golang.
• Collaborate with cross-functional teams to design end-to-end solutions for customer deployments.
• Provide technical guidance and mentorship to other engineers on the team.

Skills

Backend system development

Distributed systems

API design

Microservices architecture

Cloud infrastructure

Education

Bachelor’s degree in Computer Science or related field

Tools

Go

Kubernetes

Docker

Job description

Senior Software Engineer, Backend (Voice Platform)

Cresta is on a mission to turn every customer conversation into a competitive advantage by unlocking the true potential of the contact center. Our platform combines the best of AI and human intelligence to help contact centers discover customer insights and behavioral best practices, automate conversations and inefficient processes, and empower every team member to work smarter and faster. Born from the prestigious Stanford AI lab, Cresta's co-founder and chairman is Sebastian Thrun , the genius behind Google X, Waymo, Udacity, and more. Our leadership also includes CEO, Ping Wu , the co-founder of Google Contact Center AI and Vertex AI platform, and co-founder, Tim Shi , an early member of Open AI.

Join us on this thrilling journey to revolutionize the workforce with AI. The future of work is here, and it's at Cresta.

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.
You’ll drive major initiatives in areas such as SIP and WebRTC support, multilingual and translation pipelines, and real-time conversation intelligence. This role requires strong technical leadership, a passion for building reliable distributed systems, and the ability to collaborate across engineering and product teams to bring innovative features into production.

Responsibilities:

• Lead the design and development ofscalable, distributed backend microservicesin Golang (with some Python for AI-related services).
• Own and evolvevoice platform integrationswith large-scale enterprise communication and contact center systems.
• Drive initiatives to expand platform capabilities, includingbi-directional SIP, WebRTC integrations, multilingual support, advanced transcription, and real-time translation.
• Build systems that powerconversation intelligencefor both remote and in-person interactions.
• Improveobservability, reliability, and self-service troubleshootingacross the platform.
• Ensureperformance, scalability, and resilienceof 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.

Qualifications We Value:

• Bachelor’s degree in Computer Science or related field.
• 5+ years of experiencein backend system development, distributed systems, or cloud infrastructure.
• Expertise inGo(or a similar systems language) with strong API and service design skills.
• Proven experience withscalable architecturesusing microservices, workflow orchestration, distributed caching, and cloud databases.
• Strong knowledge ofKubernetes, Docker, and modern cloud infrastructure.
• Solid understanding ofnetworking, real-time communication protocols, and cloud security best practices.
• Demonstrated ability tolead complex technical projectsfrom design through production.
• Bonus: experience withvoice systems, telephony, or real-time media platforms
• 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 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.

We have noticed a rise in recruiting impersonations across the industry, where scammers attempt to access candidates' personal and financial information through fake interviews and offers. All Cresta recruiting email communications will always come from the @cresta.ai domain.Any outreach claiming to be from Cresta via other sources should be ignored. If you are uncertain whether you have been contacted by an official Cresta employee, reach out to [e-mail]

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