Senior Software Engineer, Backend – AI Agent Runtime

🕒 April 2

Apply Now

Find Similar Remote Jobs

Set Up Email Alert For New Jobs

📊 Check your resume score for this job

Improve your chances of getting an interview by checking your resume score before you apply.

Upload Resume

Cresta

WebsiteLinkedInAll Job Openings

51 - 200 employees

☁️ SaaS

🤖 Artificial Intelligence

🏢 Enterprise

SaaS • Artificial Intelligence • Enterprise

Cresta is an enterprise-grade AI platform that focuses on enhancing contact center operations. By employing a unified platform for human and virtual agents, Cresta aims to improve customer experience, increase revenue, and reduce costs. The platform integrates AI to assist with sales, customer care, retention, and collections, providing real-time guidance and insights. Cresta's AI capabilities include conversation intelligence, agent assistance, quality management, and virtual agents. With a focus on automation and augmentation, Cresta seeks to transform workflows and customer interactions across various industries, including telecommunications, finance, and retail.

📋 Description

• Build real-time AI agent infrastructure: Design and operate the stateful, low-latency runtime that powers voice and chat AI agents — from LLM streaming and conversation state management to graceful recovery and multi-channel support. • Solve distributed systems problems: Own session management across scaled-out workers — including affinity, checkpointing, crash recovery, and consistency under concurrent access. • Build a function execution platform: Own a serverless-style runtime where customers deploy custom logic — build orchestration, container lifecycle, autoscaling, and versioned rollouts. • Own developer experience and test infrastructure: Build CLI tools, local development environments, and test execution frameworks that let engineers iterate quickly and ship with confidence. • Raise the bar on production quality: Drive observability, incident response, and engineering best practices across the team.

🎯 Requirements

• 5+ years of software engineering experience, with meaningful time spent on infrastructure, platform, or systems work. • Strong Python and Go — both are core to this role, not one primary and one secondary. • Deep understanding of distributed systems: consistency, fault tolerance, state management, concurrency. • Experience with Kubernetes and cloud-native infrastructure. • Experience building developer-facing tooling — CLIs, SDKs, local dev environments, or internal platforms. • Strong communicator who can drive technical decisions, write clear design docs, and mentor others. • High bar for code quality — thorough testing, thoughtful code review, and sustainable engineering practices. • Comfort operating what you build — on-call, incident response, and production ownership. • AI-native workflow — you actively use LLMs and AI-assisted tools in your daily development, and can leverage them to move faster and tackle problems that would otherwise be impractical.

🏖️ Benefits

• 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