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Home / iOS Software Engineer

iOS Software Engineer

  • Full Time
  • Anywhere

Bjak

Company

A1 is building a proactive AI smart assistant for everyday users to bring intelligence to conversations, errands, organising and workflows.

Our product focuses on achieving high reliability for long-running workflows, persistent context, and real-world task completion. The system must handle multi-step reasoning, interact with external tools, and remain reliable despite non-deterministic model behavior.

Role

As an iOS Software Engineer, you own the iOS client experience, how AI feels, responds, and performs in users’ hands. This is not a thin integration role. You will build a production-grade iOS application where AI interactions are central to product experience, and performance, reliability, and user trust are critical.

Focus

  • Build and maintain iOS applications using Swift and SwiftUI.

  • Integrate AI-powered features through backend APIs.

  • Design UX patterns for AI interactions, including loading states, streaming responses, retries, and fallbacks.

  • Optimize performance, memory usage, and battery efficiency.

  • Capture user signals and feedback to support AI evaluation and iteration.

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

  • Maintain high App Store quality, stability, and production reliability.

Ideal Experiences

  • 3+ years of iOS development experience using Swift.

  • Hands-on experience integrating AI-powered features into mobile apps.

  • Strong understanding of async/await, concurrency, and background tasks.

  • Solid iOS performance and memory optimization skills.

  • Experience shipping and maintaining production iOS apps.

  • Comfort designing for latency, partial failure, and non-deterministic AI behavior.

  • Exposure to CoreML or light on-device ML.

  • Familiarity with feature flags or remote configuration systems.

  • Strong intuition for AI UX patterns and user trust considerations.

Outcomes

  • Stable, smooth, and reliable real-world use iOS 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

  • Swift

  • SPM

  • SwiftUI

  • 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.

Originally posted on Himalayas

To apply for this job please visit himalayas.app.

About this role & career path

Working in South Korea

South Korea, officially the Republic of Korea (ROK), is a country in East Asia. It constitutes the southern half of the Korean Peninsula and borders North Korea along the Korean Demilitarized Zone, with the Yellow Sea to the west and the Sea of Japan to the east. South Korea claims to be the sole legitimate government of the entire peninsula and adjacent islands. It has a population of about 52 million, of which half live in the Seoul metropolitan area, the ninth most populous metropolitan area in the world, with other major cities being Busan, Daegu, and Incheon.

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