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Staff Software Engineer, Backend

Cresta· Engineering
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Hybrid (Canada)full-timePosted 3mo ago

About the role

Staff Software Engineer to lead design and evolution of backend systems powering Cresta's AI platform, architecting scalable distributed systems, mentoring engineers, and shaping technical strategy at the intersection of AI and enterprise software.

Responsibilities

  • Architecture & Leadership: Lead the architecture and evolution of large-scale distributed backend systems, driving cross-team technical initiatives from design through production
  • Scalable Systems Design: Build high-performance, fault-tolerant backend services supporting real-time AI agents, conversation intelligence, and enterprise integrations
  • AI/ML Collaboration: Partner with ML engineers to operationalize AI capabilities, building runtime infrastructure and orchestration systems that power AI agents at scale
  • Data & Storage Solutions: Design and optimize data storage and retrieval systems for real-time analytics and insights
  • Production Excellence: Drive continuous improvements in system performance, cost efficiency, and scalability to handle high-volume production workloads
  • Technical Mentorship: Mentor senior engineers, influence technical roadmap, and raise the bar for engineering quality across teams

Qualifications

  • Bachelor's degree in Computer Science or related field
  • 8+ years building scalable backend systems in production environments
  • Proven experience leading large-scale distributed system architecture with deep understanding of consistency, fault tolerance, state management, and concurrency
  • Strong proficiency in at least one major programming language (Python, Go, Java, C++, or similar)
  • Strong API design expertise (REST, gRPC) and service-oriented architectures
  • Experience with database design and optimization across SQL and NoSQL systems
  • Hands-on experience with containerization and orchestration (Kubernetes, Docker)
  • Cloud platform expertise (AWS, GCP, or Azure) with strong security knowledge
  • Experience building developer-facing tooling (CLIs, SDKs, testing frameworks)
  • Strong expertise in system reliability, observability, monitoring, and production ownership (including on-call)
  • Excellent communication skills for technical decision-making, cross-functional collaboration, and mentorship
  • High standards for code quality, testing, and engineering best practices

Skills

Required:Architecture & distributed systemsBackend programmingAPI designDatabases (SQL/NoSQL)Containerization & OrchestrationCloud platforms & securityObservability & ReliabilityDeveloper toolingMentorship & leadershipCommunication

Benefits

  • medical, dental, and vision plans
  • Paid parental leave
  • Monthly Health & Wellness allowance
  • Work from home office stipend
  • Lunch reimbursement for in-office employees
  • PTO: 3 weeks in Canada
Last updated Sep 17, 2026. Interested? Apply on the company site.

About Cresta

AI Agents for Every Customer Conversation | Cresta

AI Agents for Every Customer Conversation | Cresta

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