[Hiring] Senior Android Engineer @Saratoga Software

Role Description

We are looking for a Senior Android Engineer to join a small, single-threaded mission team that builds new business-calling capabilities into a mobile calling app. You will work in Kotlin, move quickly, test ideas with real users, and use AI tools as a normal part of how you build.

Android depth matters most. You also need to be willing to work in an agentic way and to communicate clearly with product, QA, and backend colleagues.

Please note this is a 6 month fixed-term contract.

The mission is to grow the business-customer side of the product. The mission team will improve existing business features and add new ones to the core mobile app over roughly the next two quarters, working closely with a client backend engineer and the client's engineering, product, and revenue leaders. Android is built first; iOS follows later.

• First quarter: a more tailored app experience for business users, spending limits and top-ups, balance alerts and automatic top-ups, in-app, push and email messaging, and the design of shared business accounts.
• Second quarter: build of shared business accounts, usage history and reporting, support for several numbers, invoicing, and a web-based version of the calling feature.

Qualifications

• Senior, hands-on Android engineering experience with Kotlin, shipping production apps to the Play Store.
• Experience integrating an Android app with a larger backend platform and APIs.
• A quick starter who can onboard fast and work flexibly in a small team.
• Active, regular use of AI coding tools and agents. A strong engineer who refuses agentic tools is not a fit.
• Clear written and spoken communication in English.

Requirements

• Design, build and ship Android features from the roadmap, working in short cycles with fast feedback from real users.
• Run quick experiments and A/B tests with the product manager. Some of what is built may be thrown away, so keep the work lean.
• Integrate new features with the client's core platform and the backend engineer's services.
• Work with the QA engineer so that automated tests are written alongside features.
• Use AI coding tools and agents across the development lifecycle, and help shape an agentic way of working for the team.
• Share code between platforms where it makes sense, preparing for later iOS work.
• Communicate progress, risks and trade-offs clearly to the client's product and engineering leaders.

Benefits

• Opportunity to work on innovative mobile calling features.
• Collaborative team environment with a focus on fast feedback and iteration.
• Engagement with cutting-edge AI tools and technologies.

Company Description

Our client is an international calling company with a mobile app for consumers and small businesses. Its product and engineering team is small and spread across more than one location.