Often, platform teams are asked to find the balance of giving their developers autonomy while also ensuring security, reliability, scalability, and access control remains optimal.

Duolingo’s Cloud Operations team partnered with Temporal to scale engineering productivity and create self-service capabilities for their developers. By leveraging Temporal Nexus to run workflows across Namespace boundaries, they created reliable, self-service golden paths for developers without having to worry about onboarding and protecting critical infrastructure.

In this webinar, experts from Duolingo and Temporal sit down to discuss the architecture behind Duolingo’s developer portal and how its foundation is built on Temporal. They’ll then share a live demo showing the code and how it all works.

Key takeaways
- Learn how Temporal Nexus connects applications across isolated Namespaces, teams, and even cloud regions, transforming complex integrations into clean service contracts
- Understand how Duolingo’s Cloud Operations team adopted Temporal, and integrated to provide secure, self-service access and control to multiple developer teams.
- See a live demo of Duolingo’s self-service developer portal and the Temporal UI.

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Temporal is the simple, scalable, open source way to write and run reliable cloud applications. 

Learn more
Blog: https://temporal.io/blog
How Temporal Works: https://temporal.io/how-temporal-works
Community Slack: https://temporal.io/slack

Developer resources
Docs: https://docs.temporal.io
Courses: https://learn.temporal.io/courses
Support forum: https://community.temporal.io

Temporal's platform is a central hub for developers interested in distributed systems, workflow orchestration, and fault-tolerant computing. Through articles, tutorials, and documentation, Temporal offers insights into building resilient and scalable distributed applications. Developers can learn about workflow automation, state management, and handling failure scenarios using Temporal's workflow engine and coordination APIs.

Temporal

A webinar transcript covering Temporal Nexus, a feature enabling cross-namespace workflow communication within Temporal. Phil Prey (Temporal PM) explains why isolated namespaces are preferable for security and fault isolation, and how Nexus solves the cross-namespace communication problem with built-in retries, observability, and access controls. Duolingo senior engineer Jiha Wang then presents how their cloud operations team built a self-service infrastructure portal using Temporal Nexus: engineers can trigger complex, high-risk workflows (like deleting RDS clusters) through a JSON-schema-driven UI, while the cloud ops team retains approval control via signals. The architecture uses a gateway namespace with router workflows that invoke Nexus operations in isolated target namespaces. The roadmap section covers upcoming features including standalone Nexus operations callable from non-workflow clients, inbound/outbound Nexus connectors for HTTP/Kafka/gRPC, API-first contract development with codegen, and multi-tenant visibility controls.

Scaling Developer Productivity with Temporal Nexus & Duolingo