AI Phone – AI Application Integration Engineer

• Company Bjak
• Location Remote – United Kingdom
• Employment type Full Time

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.