Senior SDK Engineer – Mobile & AI

DeepRec.ai; San Francisco (CA); On-site; USD 150,000 - 210,000; Full time

Job summary

DeepRec.ai is seeking a Senior SDK Engineer to own a core part of the developer platform at the intersection of mobile engineering, SDK development, and AI infrastructure. You will design and ship production-grade mobile SDKs for iOS and Android, own public APIs, and enable seamless integrations between apps and AI/ML backends.

You will collaborate with AI/ML, backend and infra engineers to improve performance, latency, and developer experience while evolving API design and compatibility across

Qualifications

• Strong software engineering background with experience in Swift, Kotlin, Java and/or Objective-C.
• Experience building SDKs, libraries, frameworks or developer platforms.
• Strong understanding of API design and third-party integrations.
• Experience with mobile performance, networking, concurrency and testing.
• Exposure to AI/ML infrastructure, LLMs, Generative AI or on-device ML.
• Comfortable owning technically complex systems from design through production.

Responsibilities

• Design and build production-grade mobile SDKs for iOS and/or Android.
• Own SDK architecture, public APIs and developer-facing interfaces.
• Build integrations between mobile applications and AI/ML infrastructure.
• Improve performance, reliability, latency and developer experience.
• Manage API evolution, versioning and backwards compatibility.
• Work closely with AI/ML, backend and infrastructure engineers.
• Help shape the architecture and technical direction of the developer platform.

Skills

Swift

Kotlin

Java

Objective-C

SDK development

API design

Mobile performance

AI/ML infra

Job description

We're working with a fast-growing AI company building technology that enables developers to integrate intelligent, AI-powered capabilities directly into consumer applications.

They're looking for a Senior SDK Engineer to own a critical part of their developer platform, sitting at the intersection of mobile engineering, SDK development and AI infrastructure.

This isn't a traditional mobile app role. We're looking for someone who has built SDKs, libraries, frameworks or APIs that other developers build with.

What You'll Do

• Design and build production-grade mobile SDKs for iOS and/or Android
• Own SDK architecture, public APIs and developer-facing interfaces
• Build integrations between mobile applications and AI/ML infrastructure
• Improve performance, reliability, latency and developer experience
• Manage API evolution, versioning and backwards compatibility
• Work closely with AI/ML, backend and infrastructure engineers
• Help shape the architecture and technical direction of the developer platform

What We're Looking For:

• Strong software engineering background with experience in Swift, Kotlin, Java and/or Objective-C
• Experience building SDKs, libraries, frameworks or developer platforms
• Strong understanding of API design and third-party integrations
• Experience with mobile performance, networking, concurrency and testing
• Exposure to AI/ML infrastructure, LLMs, Generative AI or on-device ML
• Comfortable owning technically complex systems from design through production

Experience building an AI/ML SDK, mobile developer platform or widely adopted developer-facing library would be particularly interesting.

This is an opportunity to take significant ownership of a core part of an emerging AI platform and define how developers integrate its technology into real-world applications.