Cascade AI

Design and own backend systems and architecture for AI agents automating HR functions, lead technical design, develop orchestration logic, and integrate with enterprise platforms. | 5-8+ years backend experience with Python and cloud infrastructure, proven service design and mentoring skills. | Why Cascade? Cascade AI helps HR organizations transform how they operate with AI agents that automate critical HR functions, including support, open enrollment, onboarding, leave of absence, compensation, and more. Our agents execute processes and workflows, streamline HR operations, and deliver employees the help they need instantly and conversationally. By combining LLMs with an organization's existing HR technology stack, Cascade agents streamline operations, improve employee experience, and unlock significant cost savings. Deployed globally across 30+ countries, supporting multilingual workforces. Trusted by dozens of enterprise customers, including Fortune 100 companies. Backed by Gradient Ventures, Google's AI fund. Founded by two former Microsoft engineers through the MIT Sandbox Innovation program. Role: Senior Backend Engineer As a Senior Backend Engineer at Cascade, you will design, build, and own the core backend systems that power AI agents automating real HR work at scale — serving dozens of enterprise customers across 30+ countries, spanning industries from healthcare and energy to SaaS and cybersecurity, with employee populations ranging from 1,000 to 100,000+. This is a high-impact, hands-on role where you'll drive architecture decisions, mentor engineers, and take end-to-end ownership of critical systems — from API design through production reliability. You'll work across APIs, data models, integrations, and LLM orchestration, turning ambiguous product needs into reliable, scalable backend systems. You'll collaborate closely with product, frontend, and customer-facing teams, and you'll be trusted to make high-stakes engineering decisions with minimal oversight. This role is ideal for engineers who combine deep technical skill with strong product intuition, enjoy mentoring others, and want to shape the technical direction of a fast-growing AI company. What your first months could look like Own the architecture of a new agent workflow end-to-end. Lead a design review that shapes how we integrate with a Fortune 100 HRIS. Ship an LLM orchestration improvement that measurably increases agent accuracy. Mentor a junior engineer through their first production deployment. What You'll Do Architecture & Systems Design and own the architecture of backend services that power Cascade's AI agent platform, making decisions on system boundaries, data flow, and scalability. Lead technical design for complex features — write design docs, drive architecture reviews, and ensure alignment across teams. Build and evolve APIs that support conversational interactions, task execution, and long-running enterprise workflows. Design data models and storage layers across relational and NoSQL databases (PostgreSQL, Firestore), optimizing for performance and reliability at scale. Own production reliability for your systems — define SLOs, build monitoring and alerting, and lead incident response. AI/LLM Platform Develop and iterate on LLM orchestration logic in Python, including prompt execution, tool calling, state management, and evaluation frameworks. Build ingestion and retrieval pipelines for HR documents and structured data used by AI agents. Design and improve evaluation and testing frameworks to measure and increase agent accuracy and reliability. Enterprise Integration & Security Integrate deeply with enterprise systems such as HRIS platforms (Workday, ADP, UKG), ticketing tools (ServiceNow, Jira), and communication tools (Slack, Microsoft Teams). Implement authentication, authorization, and access controls to meet enterprise security and compliance requirements. Leadership & Collaboration Mentor junior and mid-level engineers through code reviews, pairing, and technical guidance. Identify and drive improvements to engineering processes, tooling, and best practices across the team. Collaborate with product, frontend, and customer teams to shape roadmap priorities and ship end-to-end features. What You'll Need Minimum Qualifications 5-8+ years of professional backend engineering experience in production environments. Strong proficiency in Python, including experience building backend services and data-intensive systems. Proven experience designing and building entire backend services end-to-end, with a track record of making sound architecture decisions. Solid understanding of data modeling and databases, including SQL (PostgreSQL) and NoSQL systems (e.g., Firestore or MongoDB). Experience with cloud infrastructure (GCP, Azure, or AWS), including service deployment, networking, and cost optimization. Familiarity with containerization and deployment workflows (Docker; Kubernetes strongly preferred). Strong software engineering fundamentals: system design, testing, performance, and reliability. Experience leading technical projects — scoping work, breaking down ambiguity, coordinating across teams, and delivering on time. Demonstrated ability to mentor other engineers and raise the quality bar for a team. Comfort operating with ambiguity and evolving requirements in a fast-paced environment. Preferred Qualifications Experience building LLM-powered systems or AI-driven workflows in production. Familiarity with enterprise integrations (HRIS, ticketing systems, SSO via SAML/OIDC). Experience with background jobs, async processing, or event-driven architectures at scale. Knowledge of security best practices for handling sensitive employee data (SOC 2, GDPR). Experience operating and debugging production systems using observability tools (logs, metrics, traces). Prior experience at a startup or high-growth company, ideally in a technical leadership capacity. Experience contributing to or defining engineering standards, on-call processes, or platform tooling. Who We're Looking For A backend engineer with deep technical expertise and the judgment to make architecture-level decisions independently. Someone who leads by example shipping high-quality code, raising standards, and helping others grow. Product-minded and focused on real customer impact, not just technical elegance. Pragmatic and detail-oriented, with a bias toward shipping and iterating. Curious about AI and motivated to make LLMs useful, reliable, and safe in real-world enterprise systems. Comfortable operating as a force multiplier unblocking teammates, driving alignment, and improving how the team works. A clear communicator who collaborates well across disciplines and can represent engineering in cross-functional discussions. Excited to grow with Cascade and take on increasing technical leadership as the company scales. How We Hire Cascade AI welcomes candidates from all backgrounds. We're committed to building a fair, inclusive hiring process and an environment where people can do their best work.

Design and develop scalable, responsive React frontend interfaces for AI-powered HR automation tools, collaborating with cross-functional teams to deliver high-quality user experiences. | 3+ years professional frontend experience with React and TypeScript, strong frontend architecture and design system skills, experience working in cross-functional teams, and ability to manage priorities in a fast-paced environment. | Who we are Cascade AI helps HR organizations transform how they operate with AI agents that automate critical HR functions—including support, open enrollment, onboarding, leave of absence, compensation, and more. Our agents do far more than provide answers. They execute processes and workflows, streamline HR operations, and deliver employees the help they need instantly and conversationally. By combining Large Language Models (LLMs) with an organization’s existing HR technology stack, Cascade agents streamline operations, improve employee experience, and unlock significant cost savings. Cascade is deployed globally, with users on every continent, and supports multi-lingual workforces. We are proudly backed by Gradient Ventures, Google’s AI fund, and trusted by Fortune 100 companies and leading enterprises, many of whom sign multi-year contracts. Founded by two former Microsoft engineers through the MIT Sandbox Innovation program, Cascade is now one of the fastest-growing AI companies in HR technology. We have an exceptional advising team, including industry leaders such as the former VP of People Ops at Google and former CHRO of Airbnb. If you like to work at the intersection of AI and cloud, collaborate across the organization, and thrive in a fast-paced startup environment, this role could be a perfect fit for you. Everyone joining at this stage will wear multiple hats and work across the product surface. Role As a Frontend Engineer II at Cascade, you will play a critical role in designing and building the user interfaces that power our AI agent platform for HR automation. You will shape how employees interact with agents that automate processes like onboarding, open enrollment, leave, and termination—and how HR teams configure, monitor, and scale those agents across the enterprise. This is an opportunity to join a fast-growing company and make an outsized impact: you’ll help set the vision for our frontend architecture, build intuitive and performant interfaces, and deliver experiences that bring our AI agents to life for employees around the world. What You’ll Do • Design and develop frontend experiences in React for both employees (AI agent interactions) and HR teams (dashboards, workflow automation tools, analytics). • Build scalable, responsive, and accessible UIs that support global enterprise deployments. • Collaborate closely with product, design, and backend engineering to deliver seamless end-to-end workflows. • Implement reusable design systems and component libraries to accelerate development and maintain consistency. • Ensure code quality and reliability through automated testing, reviews, and performance monitoring. • Iterate quickly in 2-week sprints, balancing speed with long-term maintainability. • Stay ahead of modern frontend trends, adopting new tools and libraries where they add real value. • Bring a product mindset: prioritize features that deliver the most impact for customers and employees. What You’ll Need Minimum qualifications: • Bachelor’s or Master’s degree in Computer Science, Software Engineering, or a related field (or equivalent practical experience). • 3+ years of professional frontend development experience, with deep expertise in React and modern JavaScript/TypeScript. • Strong understanding of frontend architecture, state management, and design systems. • Fluency in Git for version control and collaboration within a team. • Proven track record of delivering complex, long-term projects in cross-functional teams. • Experience collaborating with designers and backend engineers to build user-friendly, data-rich interfaces. • Ability to manage multiple priorities in a fast-paced, high-growth environment. • Strong problem-solving skills, with a natural curiosity and product mindset. Preferred qualifications: • Experience building enterprise-grade UIs such as dashboards, workflow automation tools, or configuration platforms. • Familiarity with testing frameworks (e.g. Jest, Cypress, Playwright) and best practices for frontend reliability. • Experience with performance optimization and accessibility in large-scale applications. • Prior experience in a startup or high-growth environment, comfortable balancing speed and long-term maintainability. • Ability to communicate complex technical concepts clearly to both technical and non-technical stakeholders. • Demonstrated leadership qualities, self-direction, and strong communication skills. Who we are looking for: • Technically strong, with a deep foundation in modern frontend engineering principles and best practices. • Skilled at building enterprise-grade interfaces—from employee-facing AI interactions to HR dashboards and workflow automation tools. • Bring a product and design mindset: you think not only about how something works, but how it feels for the end user. • Rigorous in your approach, always aiming for high-quality, maintainable, and scalable code. • Excited by the mission of transforming HR through AI agents that automate critical processes and workflows. • Thrive in a fast-paced, high-growth environment, with the ability to prioritize effectively and deliver impact quickly. • Self-directed, with the ability to take ownership of projects while collaborating closely across teams. • Operate with empathy, humility, and curiosity, bringing a genuine passion for solving real-world problems. • Eager to grow with Cascade, taking on new challenges and opportunities as the company scales globally. How we hire Cascade AI welcomes candidates from all backgrounds. We’re committed to a fair hiring process free from discrimination. We strive to create an inclusive and equitable environment for all employees, contractors, and external partners.