Your browser cookies must be enabled in order to apply for this job. Please contact if you need further instruction on how to do that.

Senior Android Engineer [Remote, NO C2C]

Engineering | Remote | Full Time

Job Description

JOB TYPE: Freelance, Contract Position - No agencies (See notes below)

LOCATION: Remote (Must be a US citizen living and working in the United States to apply for this role)

HOURLY RANGE: Our client is looking to pay $75 - $110 USD / HR

ESTIMATED DURATION: 40Hrs/Week - Long Term, ongoing project


  • Kotlin

  • Reactive Programming

  • US citizen


Braintrust ( is a user-controlled talent network, where you keep 100% of what you earn and actually get to own the platform. We've been onboarding some big clients and specifically need a Senior Android Engineer for our client.  



Our client is looking for a Senior Android Engineer to enhance the Android app (written in Kotlin) to add features using BLE/NFC, custom UI components, visualizations, etc.

This is a fully native app build from day one using the latest tech (Kotlin, Flow, etc). You will need to have the ability to work with BLE/NFC, integrate with a lot of external IoT/sensor devices. You will also need to optimize performance with huge amounts of data being processed by the app in an offline-first approach. The ideal candidate is obsessed with premium look & feel & attention to detail. This role will certainly be challenging and rewarding!

First deliverables:

  • Custom chart components updated with real-time data (Reactive)
  • Ability post/search/interact with messages
  • Performance Tuning, battery resource consumption optimization & increase automated test coverage 


  • Android Native app development (this is purely native app dev, not hybrid)
  • Kotlin
  • Reactive Programming
  • Automated Testing
  • BLE
  • Excellent communication skills
  • Self-driven and highly motivated to succeed
  • Attention to detail and cares about the quality
  • Likes fun challenging problems and cares deeply about customer experience with the app (UI)
  • Owns his/her own productivity
  • US citizen


Qualified candidates will be invited to do a screening interview with the Braintrust staff. We will answer your questions about the project, and our platform.  If we determine it is the right fit for both parties, we'll invite you to join the platform and create a profile to apply directly for this project.  

C2C Candidates: This role is not available to C2C candidates working with an agency. If you are a professional contractor who has created an LLC/corp around their consulting practice, this is well aligned with Braintrust and we’d welcome your application.  

Braintrust values the multitude of talents and perspectives that a diverse workforce brings. All qualified applicants will receive consideration for employment without regard to race, national origin, religion, age, color, sex, sexual orientation, gender identity, disability, or protected veteran status.