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About this AI Phone - AI Application Integration Engineer role at Bjak

Bjak · Hybrid · United Kingdom

About

We are reimagining the phone. AI phones need to be proactive, intuitive, intelligent and low cost. This is a mission critical for rest of the world to adopt intelligence.

There are over 5 billion people using everyday applications such as email, messaging, notes, tasks, and calendars, yet most are not AI-native. Our mission is to build proactive applications and devices that bring intelligence into daily conversations, coordination and workflows, with minimal prompting.

Focus: Making applications accessible and actionable by AI agents, so agents can interact with applications and execute workflows across them.

Responsibilities

  • Build integrations between AI agents and first-party applications.

  • Expose structured actions that agents can execute.

  • Implement interfaces for retrieving information from applications.

  • Support actions such as search, create, update, send and delete.

  • Build cross-application workflows.

  • Develop reusable integration interfaces and SDKs.

  • Handle authentication, authorization and permissions.

  • Investigate third-party application integration limitations.

  • Work with Android engineers on system-level application access.

Requirements

  • Strong software engineering and API development experience.

  • Experience integrating multiple applications or external services.

  • Understanding of mobile application architecture.

  • Experience with authentication and authorization.

  • Strong debugging and integration skills.

  • Experience building reliable APIs and asynchronous workflows.

Nice to have

  • Android development experience.

  • Knowledge of Android intents, IPC and accessibility services.

  • Experience with messaging, email, calendar or productivity integrations.

  • Experience building agent tools or MCP integrations.

  • Experience with application interoperability.

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