BJAK Logo

BJAK

Android Software Engineer

Reposted 8 Days Ago
Be an Early Applicant
Remote or Hybrid
Hiring Remotely in United Kingdom
Mid level
Remote or Hybrid
Hiring Remotely in United Kingdom
Mid level
Responsible for building and maintaining Android applications with AI features. Focus on performance, UX design, and collaboration with backend and ML engineers.
The summary above was generated by AI
About ActAI

There are over 5 billion users using basic applications today such email, notes, tasks, calendar and they're not AI-native. Our mission is to build proactive applications for anyone in the world, who are not used to complex prompting. We aim to bring intelligence to conversations, errands, organising and workflows, with minimal prompting.

Our product focuses on achieving high reliability for long-running workflows, persistent context, and real-world task completion. We believe products will greatly reduce hallucinations

Our objective is to organise anyone's life, allowing us all to spend time on valuable and meaningful things.

 
Role

As an Android Software Engineer, you own the Android client experience, how AI feels, behaves, and performs on mobile devices. This is not a thin client role. You will build a production Android application where AI interactions are core to the product, and performance, reliability, and clarity matter.

 
Focus
  • Build and maintain production Android apps using Kotlin.

  • Integrate AI-powered features (chat, vision, voice, recommendations) via backend APIs.

  • Design UX patterns for AI interactions, including streaming responses, retries, and partial results.

  • Optimize performance, memory usage, and responsiveness for AI-heavy flows.

  • Implement analytics, logging, and feedback capture to support AI evaluation and iteration.

  • Collaborate closely with backend and ML engineers on API contracts and system behavior.

  • Ensure app stability, security, and scalability in production environments.

 
Ideal Experiences
  • 3+ years of Android development experience using Kotlin.

  • Hands-on experience integrating AI features (e.g. LLM, vision, speech APIs).

  • Strong understanding of asynchronous programming (Coroutines, Flow).

  • Familiarity with REST or gRPC APIs and structured data formats.

  • Strong debugging and performance profiling skills.

  • Comfort building in environments with latency, partial failure, and non-deterministic behavior.

  • Experience with MLKit or light on-device inference.

  • Published production apps on the Google Play Store.

 
Outcomes
  • Stable, smooth, and reliable real-world use android applications.

  • Performance is optimized: responsive, low-latency, and efficient on memory and CPU.

  • Production issues are detected early, monitored effectively, and resolved with clear root-cause analysis.

 
Tech Stack
  • Kotlin / Java

  • SQL / noSQL

  • TensorFlow Lite (on-device inference)

 
How We Work

The best products today in the world were built by small, world class teams. We are a high talent density and hands-on team. We make decisions collectively, move at rapid speed, striking a balance between shipping high quality work and learning. Joining our team requires the ability to bring structure, exercise judgment, and execute independently. Our goal is to put in hands of our users a truly magical product

 
Interview process

If there appears to be a fit, we'll reach to schedule 3, but no more than 4 interviews.

Applications are evaluated by our technical team members. Interviews will be conducted via virtual meetings and/or onsite.

We value transparency and efficiency, so expect a prompt decision. If you've demonstrated the exceptional skills and mindset we're looking for, we'll extend an offer to join us. This isn't just a job offer; it's an invitation to be part of a team that's bringing AI to have practical benefits to billions globally.

Similar Jobs

8 Days Ago
Remote or Hybrid
United Kingdom
Mid level
Mid level
Artificial Intelligence • Fintech • Software • Financial Services
Build and ship native Android features using Kotlin and Jetpack Compose. Design clean user flows for financial services, integrate backend APIs, improve performance and stability, use analytics and production feedback, and implement AI-assisted on-device experiences where beneficial.
Top Skills: Android SdkCoroutinesFlowGitJetpackJetpack ComposeKotlinNoSQLRest ApisSQLTensorflow Lite
21 Days Ago
Remote or Hybrid
United Kingdom
Mid level
Mid level
Artificial Intelligence • Fintech • Software • Financial Services
Build and ship native Android features in Kotlin for an AI-enabled neobank. Design clean mobile flows for payments, insurance and financial services, integrate backend APIs, improve performance and reliability, use analytics and on-device ML (TensorFlow Lite) to enhance user journeys, and collaborate with product and design.
Top Skills: Android SdkCoroutinesFlowJetpack ComposeKotlinNoSQLRest ApisSQLTensorflow Lite
Yesterday
Remote or Hybrid
Junior
Junior
eCommerce • Fintech • Hardware • Payments • Software • Financial Services
Sell Square solutions to UK SMBs through full sales cycle from prospecting to close. Build and manage pipeline, exceed targets, use consultative value-selling, collaborate with cross-functional teams for onboarding, and leverage Salesforce and business development tactics (cold calling) to drive deals.
Top Skills: Salesforce

What you need to know about the Belfast Tech Scene

If asked to name the birthplace of the RMS Titanic, you might not say Belfast. Similarly, if asked to name Europe's leading destination for foreign direct investment in new software development, Belfast might not come to mind. Yet, both are true. The city has emerged as a tech powerhouse, recently ranked among the best in the U.K. for tech careers — especially for software developers. It also leads the U.K. with the highest percentage of software development jobs advertised.

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account