Senior AI Engineer

Austin, TX | Hybrid (Minimum 4 days in office) | Full Time | https://kizen.com

About Us

At Kizen, we build technology that makes AI actually work for people.

Our platform helps organizations automate the workflows that matter most — from helping insurance agents manage contracting and commissions, to enabling healthcare providers to deliver proactive patient care, to empowering financial institutions to classify documents and extract data automatically.

And that’s just the beginning. With Kizen, developers can build new enterprise applications, while business users can customize dashboards and agents using AI, low-code, or code — all on the same platform. The possibilities are limited only by imagination.

What used to take months or years to build, configure, and connect now takes just days. Kizen combines powerful pre-built agents and use cases with an enterprise platform for automation and data connection — all built on an AI-first architecture that’s easy to adopt, scale, and trust.

We’re not chasing hype. We’re solving real operational problems and helping the world’s most complex organizations work faster, smarter, and more humanely.

Join us in transforming how industries work — one workflow, one agent, and one customer success story at a time.

About the Role

We are looking for a hands-on Senior AI Engineer with a strong background in building scalable Python applications and a passion for the latest advancements in AI agent systems. This is an opportunity to be at the heart of the AI movement, working on cutting-edge multi-agent frameworks and tooling that power real enterprise solutions.

As a Senior AI Engineer, you'll be working directly with Antoine Gargot, Director of Data Science, to architect, build, and ship AI-powered tools and systems that directly impact our customers. You'll join a talented team of Principal and Senior AI Engineers, contributing to a fast-paced, innovation-driven environment.

In this dynamic role, you'll:

• Build AI Agent Tooling: Design and develop extensive tools that enable sophisticated AI agent capabilities across our platform.
• Work on Multi-Agent Systems: Contribute to our next-generation multi-agent framework, implementing robust orchestration and coordination patterns.
• Own End-to-End Delivery: Take full ownership of features from design through deployment, with a strong focus on quality, speed, and reliability.

Key Responsibilities

AI Agent Development

• Build and maintain extensive tooling for AI agents, including tool-calling interfaces, agent orchestration, and integration layers.
• Work hands-on with our multi-agent framework, implementing coordination strategies and communication protocols between agents.

Prompt Engineering & Optimization

• Design, test, and iterate on prompts to optimize agent behavior and reliability.
• Implement evaluation frameworks to measure and improve prompt performance.

System Architecture & Design

• Architect scalable systems based on clear product requirements, aligning with current architecture while proposing improvements over time.
• Design event-driven systems with a focus on reliability, speed, and maintainability.

Product Ownership & Quality

• Take strong ownership of features with a product-minded approach, ensuring excellent user experience.
• Implement comprehensive testing strategies including unit tests, integration tests, and end-to-end tests.
• Maintain high standards for code quality, documentation, and deliverability.

Developer Experience

• Build internal tools and utilities that improve the team's development workflow and productivity.
• Contribute to CI/CD pipelines and deployment automation.

Requirements

• Bachelor's degree required; Master's degree in Computer Science preferred
• 5-6+ years of experience building scalable applications in Python
• 4+ years of hands-on Python experience with deep fluency in the language
• 2+ years of experience with orchestration systems, preferably Kafka
• Strong experience with Django and FastAPI for building production APIs
• Deep expertise in PostgreSQL and database optimization (query optimization, indexing, schema design)
• Solid experience with event-driven architectures and streaming data processing
• Proficiency with Docker and Kubernetes for containerization and orchestration
• Strong experience with AWS cloud services
• Deep understanding of Git workflows and version control best practices
• Experience with CI/CD pipelines and deployment automation
• Strong knowledge of asynchronous programming, threading, and concurrency patterns in Python
• Experience with pytest and end-to-end integration testing
• Familiarity with modern AI development tools (e.g., Claude Code, Cursor, or similar)
• Recent experience with agent tool-calling patterns and awareness of current AI industry innovations
• Ability to build developer tools that improve team productivity

Preferred Qualifications

• Experience at AI startups or high-growth technology companies
• Healthcare industry experience is a plus
• Experience with LLM APIs and prompt engineering
• Familiarity with observability and monitoring tools (Langfuse (or LangSmith) LiteLLM, etc.)
• Contributions to open-source projects

Why Kizen

We’re a fast-growing company that values innovation, growth, and continuous improvement. By joining Kizen, you’ll play a pivotal role in shaping the future of the company while enjoying a supportive, dynamic, and collaborative workplace. You’ll have opportunities for professional development, impact, and career advancement.

What We Offer

• Career Growth Opportunities
• Engaging Work Culture
• Top-Tier Compensation
• Equity Package
• Healthcare Coverage
• Health and Fitness Stipend
• Professional Development Stipends
• PTO

Kizen is proud to be an equal-opportunity employer. We are committed to building a diverse and inclusive culture that celebrates authenticity to win as one. We do not discriminate on the basis of race, religion, color, national origin, gender, gender identity, sexual orientation, age, marital status, disability, protected veteran status, citizenship or immigration status, or any other legally protected characteristics. At Kizen, we fully comply with the Americans with Disabilities Act (ADA). We are dedicated to embracing challenges and creating an accessible, inclusive workplace for all individuals.

The base salary range for this position is $180,000 - $240,000. However, base pay offered may vary depending on job-related knowledge, skills, and experience. In addition to base salary, we also offer generous equity and benefits packages.

If you’re excited about creating impactful experiences and contributing to a fast-paced, people-focused team, we’d love to meet you!

OTE - $207,000-$276,000K

Location: Domain (Austin office)

Visa Sponsorship: Not available for this role