Senior Mobile SDK Engineer

MWDN

United States

Remote

USD 120,000 - 180,000

Full time

14 days+

Application generator

Turn this role into an interview — a resume and cover letter built around what this employer wants.

Get past ATS filters

Benefits offered by this job

29 days PTO

10 paid recovery days

Full financial and legal support for  

Free English classes

Dedicated HR support

Flexible working hours

Job summary

MWDN, a global IT outstaffing company, is building a groundbreaking loyalty platform for mobile gamers and seeks engineers to form the core of the engineering team. You will design and implement a robust Unity SDK, build native iOS and Android components, and ensure seamless Unity/native integration.

Join a fast-growing domain with high ownership and impactful deliverables. We value hands-on developers with strong Unity and mobile experience, capable of driving SDK initiatives and collaborating

Qualifications

5 years of professional software development experience.
3 years of Unity SDK development experience.
2 years of native mobile development.
Strong understanding of Unity and the integration between Unity/C# and native mobile code.
Experience leading or owning an SDK initiative preferred.

Responsibilities

Design and develop a reliable SDK for integration into Unity-based mobile games and applications.
Build and maintain native SDK components for iOS and Android, plus the Unity integration layer.
Define the SDK architecture, public APIs, integration patterns, and Unity-to-native communication.
Own the SDK lifecycle from design to packaging, release, monitoring and ongoing support.
Ensure compatibility across Unity versions, iOS/Android versions, devices, and customer environments.
Collaborate with Mobile Lead and engineers on technical decisions and implementation.
Identify risks and propose practical solutions with minimal supervision.

Skills

Unity SDK development

Mobile SDK development

Kotlin

Swift

Android/iOS integration

Tools

Unity

Android Studio

Xcode

Job description

MWDN is a global IT outstaffing company with 23 years of experience that connects exceptional tech talent with leading companies across Israel, the USA, Great Britain, and Western Europe. We offer opportunities to work on international products in a stable and professional environment.

Here's what you can expect when you join MWDN:

Security: We carefully vet our clients to minimize risks and ensure reliability and timely payments - no fraud or unpleasant surprises.
Career support: If a project isn't the right fit, we support you and actively help find new opportunities that match your skills and career goals.
Legal assistance: We provide guidance on legal matters, including opening and managing your independent contractor or sole proprietorship status, taxes, and related processes.
Professional development: We offer English courses and professional growth opportunities, as well as team-building events.

Why choose us? MWDN is ranked among the top 5 IT employers in our region according to DOU. We take pride in our transparency and strong commitment to our team. Curious to learn more? See what our employees say about working with us on DOU.

Domain: Gaming

Location: US/Israel

Company size: 11-50 employees

Founded in: 2025

Our client is building a groundbreaking loyalty platform for mobile gamers, and we're seeking passionate individuals to form the foundation of the engineering team. Product mission is to empower gamers with a new way to discover games, connect with their friends, and earn fantastic rewards.

Joining us, you will get to build the highest quality consumer app in one of the hottest domains in the gaming industry, and make real measurable business impact.

With tens of thousands of daily active users and over a hundred games on clients platform, there are growing fast. Join us and let's open a whole new market together.

5 years of professional software development experience.
Strong hands-on experience developing mobile SDKs used within Unity applications.
3 years of relevant Unity SDK development experience.
2 years of native mobile development.
Strong understanding of Unity and the integration between Unity/C# and native mobile code.
Professional experience with native Android development using Kotlin.
Professional experience with native iOS development using Swift.
Understanding of mobile application lifecycles, performance considerations, threading, and debugging.
Previous experience leading or taking substantial ownership of an SDK initiative is highly preferred.
Strong communication skills and the ability to explain technical decisions clearly.
High level of ownership, internal motivation, and ability to work independently.

Design and develop a reliable SDK for integration into Unity-based mobile games and applications.
Build and maintain native SDK components for iOS and Android, together with the Unity integration layer.
Define the SDK architecture, public APIs, integration patterns, and communication between Unity and native mobile components.
Own the SDK lifecycle from initial design and implementation through packaging, release, monitoring, and ongoing support.
Ensure compatibility across Unity versions, iOS and Android versions, devices, and customer environments.
Collaborate with the Mobile Lead and other engineers on technical decisions and implementation.
Proactively identify technical risks and recommend practical solutions without requiring close supervision.