Software Engineer II

Job Description

At Zendesk were on a mission to build the most advanced AI agents in CX and the Testing team part of AI Agents Advanced is focused on ensuring the quality and reliability of our AI agents through synthetic testing evaluation frameworks and other validation approaches that help us ship with confidence.

As a Fullstack Engineer on this team youll be instrumental in building the systems and tools that power synthetic testing evaluation and quality validation for our AI agents. While this is a fullstack role it leans more on backend development were looking for someone who is passionate about APIs event-driven systems testing infrastructure and data workflows while also being comfortable crafting user-facing tools and owning delivery end-to-end.

Youll work closely with product managers designers data engineers data analysts and fellow developers to create seamless intuitive experiences combining rich data intelligent systems and responsive UIs.

Your work will directly shape how our customers make informed and impactful decisions based on real-time AI-powered insights.

What You Bring to the Role

• 3 years of experience building modern web applications using TypeScript React and .

• Familiarity with REST APIs data fetching strategies and integrating with external services.

• You write clean modular and tested code and you value maintainability as much as speed.

• Experience working with design systems and component libraries with a strong focus on performance accessibility and usability.

• You are a product-minded engineer you care deeply about the end-user experience and proactively contribute ideas to improve product outcomes.

• Excellent communication skills and a proactive mindset you collaborate well in cross-functional teams arent afraid to ask for help and enjoy enabling others.

• A drive for continuous learning reflection and improvement in both your own growth and your teams success.

A big plus if you

• Are familiar with AWS and comfortable with CI/CD pipelines.

• Have a good understanding of microservice architecture and event-driven systems and basic database design (relational and NoSQL).

• Have experience using AI agentic tools such as Cursor Claude Code and similar developer assistants

• Have working knowledge of Python and experience using it in backend automation or data-related tasks.

How We Measure Success in This Role

• You consistently deliver well-scoped high-quality features across the stack with guidance from senior team members when needed.

• You contribute to the reliability maintainability and performance of our systems through clean code thoughtful testing and attention to detail.

• You collaborate effectively across disciplines (product design AI/ML data) and actively participate in team discussions and planning.

• You demonstrate ownership by following through on tasks communicating blockers and proactively seeking feedback to improve your work.

• You show growth over time deepening your technical skills increasing your product understanding and contributing more independently.

Our Tech Stack

• Frontend: TypeScript React

• Backend: (ES7) TypeScript Python MongoDB Snowflake

• Infrastructure: AWS Kubernetes Terraform ArgoCD Sentry Redis Datadog GitHub Actions

Interview Process

We aim to make our hiring process clear and transparent:

• Intro chat with Talent Partner up to 30 minutes

• Interview with Hiring Manager 30-45 minutes

• Technical stage is a live coding challenge and interview with two engineers 90 minutes

• Final interview with Hiring Manager and Senior Leadership 45 minutes

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The intelligent heart of customer experience

Zendesk software was built to bring a sense of calm to the chaotic world of customer service. Today we power billions of conversations with brands you know and love.

Zendesk believes in offering our people a fulfilling and inclusive experience. Our hybrid way of working enables us to purposefully come together in person at one of our many Zendesk offices around the world to connect collaborate and learn whilst also giving our people the flexibility to work remotely for part of the week.

As part of our commitment to fairness and transparency we inform all applicants that artificial intelligence (AI) or automated decision systems may be used to screen or evaluate applications for this position in accordance with Company guidelines and applicable law.

Zendesk is an equal opportunity employer and were proud of our ongoing efforts to foster global diversity equity & inclusion in the workplace. Individuals seeking employment and employees at Zendesk are considered without regard to race color religion national origin age sex gender gender identity gender expression sexual orientation marital status medical condition ancestry disability military or veteran status or any other characteristic protected by applicable law. We are an AA/EEO/Veterans/Disabled employer. If you are based in the United States and would like more information about your EEO rights under the law please click here.

Zendesk endeavors to make reasonable accommodations for applicants with disabilities and disabled veterans pursuant to applicable federal and state law. If you are an individual with a disability and require a reasonable accommodation to submit this application complete any pre-employment testing or otherwise participate in the employee selection process please send an e-mail to with your specific accommodation request.