Senior Software Engineer, Backend

OverviewSenior Software Engineer, Backend (AI Agent)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 Stanford AI Lab, Cresta's leadership includes Sebastian Thrun and CEOs/co-founders with backgrounds at Google, Udacity, Vertex AI, and OpenAI.About The RoleAt Cresta, the AI Agent team is on a mission to create state-of-the-art AI Agents that solve practical problems for our customers. We focus on the latest technologies in Large Language Models (LLMs) and AI Agent systems, ensuring solutions are cost-effective, secure, and reliable. This role involves hands-on work on cutting-edge projects, requiring innovative and passionate software engineers who can bring research into practical, scalable applications.As a Senior Software Engineer, your goal is to ensure our AI Agents are backed by reliable and scalable server solutions, including designing and maintaining the server architecture that handles real-world, high-volume interactions with high availability and performance.This is a unique opportunity to shape the future of AI at Cresta by solving complex problems and bringing breakthrough AI advancements into production environments.ResponsibilitiesDesign, develop, and maintain scalable and robust backend architectures for Cresta’s AI Agent solutions and proprietary models.Collaborate with cross-functional teams including frontend engineers and machine learning engineers to ensure seamless integration of AI Agents into Cresta’s customer solutions.Lead initiatives to enhance system scalability and reliability in production environments, focusing on backend services that support AI functionalities.Drive efforts to optimize server response times, process large volumes of data efficiently, and maintain high system availability.Innovate and implement security measures, cost-reduction strategies, and performance improvements in backend systems supporting AI Agents.Qualifications We ValueBachelor’s degree in Computer Science or a related field.5+ years of experience in backend system architecture, cloud services, or related technology fields.Proficient in designing and maintaining clear and robust APIs with a strong understanding of protocols including gRPC and REST.Previous experience working with Virtual Agent or AI Agent systems.Experience in high-performance database schema design and query optimization, including knowledge of SQL and NoSQL databases.Experience in containerized application deployment using Kubernetes and Docker in microservices architectures.Experience with cloud environments such as AWS, Azure, or Google Cloud, with a strong understanding of cloud security and compliance standards.Perks & BenefitsWe offer Cresta employees a variety of medical, dental, and vision plans, designed to fit you and your family’s needsPaid parental leave to support you and your familyMonthly Health & Wellness allowanceWork from home office stipend to help you succeed in a remote environmentLunch reimbursement for in-office employeesPTO: 3 weeks in CanadaCompensation 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 recruiting@cresta.aiSeniority levelSeniority levelMid-Senior levelEmployment typeEmployment typeFull-timeJob functionJob functionEngineering and Information TechnologyIndustriesSoftware DevelopmentReferrals increase your chances of interviewing at Cresta by 2xGet notified about new Senior Software Engineer jobs in Toronto, Ontario, Canada.Senior Staff Software Engineer (Senior Manager)Principal Engineer / Chief Software Architect (Hybrid)Senior Engineering Manager, Developer ExperienceSenior Software Engineer, Business Process & AutomationSenior Software Engineer (Network Platform Team)Senior Full Stack Developer, AI & AutomationSenior Software Engineer, Audio-Video Processing (Req ID : 2025-14)Senior Manager, Developer Security Enablement and OperationsLead Data Scientist - Articial Intelligence SpecialistLead Data Scientist - Feature EngineeringSenior Python Developer (with Capital Market experience)We’re unlocking community knowledge in a new way. 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