Senior Software Engineer Loures

Senior Software Engineer – Loures, Lisboa, Portugal

At Zendesk, we help customers build great relationships with their own customers. Founded by three Danish entrepreneurs, Zendesk has experienced remarkable success and growth while maintaining a fun, positive, and earth culture.

We are looking for a Senior Software Engineer to join our AI Copilot team. You will deliver AI/ML powered features for our customers at Zendesk scale.

What you’ll be doing

• Work closely with ML Scientists to bring ML-powered features into production.
• Contribute to discussions about technical design.
• Build tools to support model experimentation and model management.
• Collaborate with Dev
  Ops, feature teams, platform teams, and product.
• Contribute to initiatives around improving the scalability and robustness of our platforms.
• Design, prototype, and refine scalable infrastructure.

What you bring to the role

Required

• Fluent in at least one of Python or Ruby.
• At least 3 years of background in building, scaling, and operating large‑scale applications.
• Previous experience delivering AI products.
• Fluency with RESTful API, Kafka, Docker, Kubernetes, and a cloud platform like AWS or GCP.
• Ability to work with uncertainty and the flexibility to pivot with changing priorities.
• Deep respect and desire for team collaboration and members’ perspectives.

Preferred

• Experience with Airflow or Metaflow.
• Experience with recent tooling around LLM evaluation and monitoring.
• Familiarity with one of the machine‑learning libraries such as Py
  Torch.
• Experience with SQL or DBT.

Tech Stack

• Our code is written in Python and Ruby.
• Our servers live in AWS.
• Our machine learning models rely on Py
  Torch.
• Our ML pipelines use Airflow and Metaflow.
• Our data is stored in S3, RDS My
  SQL, and Snowflake.
• Our services and models are deployed to Kubernetes using Docker.
• Heavy usage of LLM technology from multiple providers.

Hybrid work

In this role, we value onsite experience at our local office, while also allowing flexibility to work remotely for part of the week. The specific office schedule will be determined by the hiring manager.

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.

We are an equal‑opportunity employer. We are proud of our commitment to diversity, equity, and inclusion. Individuals seeking employment 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 law. Zendesk is an AA/EEO/Veterans/Disabled employer. If you are based in the United States, for more information about your EEO rights under the law, please click here.

If you have a disability and need a reasonable accommodation for the application process, please send an email to peopleandplaces@zendesk.com with your specific accommodation request.