Jahnel Group

Mac Platform Engineer (C/C++)

Jahnel Group  •  Remote  •  1 day ago
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Job Description

Jahnel Group’s mission is to provide the absolute best environment for software creators to pursue their passion by connecting them with great clients doing meaningful work. We get to build some of the most complex and compelling applications for our clients located across the country.

We’re a fast-growing INC 5000 recognized company, yet we still work as a very close-knit team (100+ employees). We’re growing like crazy, and if you’re looking for the next place to call home, hit us up for a beer or coffee.

Who We're Looking For

We’re looking for a Mac Platform Engineer to lead a critical Apple Silicon (ARM64) porting and optimization effort for a high-performance Mac application. This role is focused on making the application fully native on Apple Silicon while ensuring stability, performance, and compatibility across the rendering and systems stack.

This is a hands-on engineering role for someone who enjoys deep technical problem solving, low-level debugging, and working across graphics, build systems, and platform-specific challenges.

Primary Responsibilities

  • Port Mac client to Apple Silicon (ARM64) and deliver a native universal binary build
  • Upgrade and validate third-party dependencies across the codebase
  • Port SIMD-optimized code paths from SSE/x86 to ARM NEON
  • Upgrade and troubleshoot MoltenVK and resolve rendering/shader compatibility issues
  • Debug and fix compile-time, runtime, and linking issues across the system
  • Update and maintain macOS crash reporting tools for Apple Silicon compatibility
  • Diagnose and resolve low-level performance and stability issues
  • Identify and implement platform-level optimizations

Some Must-Haves:

  • 3+ years of professional C/C++ development experience
  • Strong experience with macOS development (Xcode, universal binaries)
  • Experience with cross-platform builds and platform-specific porting
  • Familiarity with SIMD programming (SSE and/or ARM NEON)
  • Understanding of Vulkan, Metal, or MoltenVK
  • Experience debugging graphics, rendering, or shader issues
  • Strong ability to resolve build, linking, and runtime issues in complex systems
  • Self-driven and comfortable working independently on ambiguous technical problems

Nice To Have:

  • Prior experience with Apple Silicon migration projects
  • Experience working on game engines or real-time rendering systems
  • Familiarity with macOS crash reporting systems

Where We're Looking For It:


Latin America
Open to 100% Fully Remote

Other Information

The work hours will be approximately 9:00 am to 5:00 pm EST, depending on workload, with the occasional late night when a tight deadline calls for it. We work for security-conscious clients, thus background checks will be required.

Position available immediately.

Jahnel Group

About Jahnel Group

No matter the complexity of the application, we have the skills and the tools to build it.

Jahnel Group brings well over a decade of web development experience with a great eye for design and an impressive set of technical skills. We work hard to stay on the cutting edge of our industry and are absolutely obsessed with making our customers happy. We've seen exponential growth in the past few years. So much so that we have appeared on the Inc. 5000 list for three consecutive years!

We specialize in the design and development of web-based applications, websites, mobile applications and anything digital with extensive experience in the full software development life-cycle. This includes gathering requirements, project management, wire framing, prototyping, development, and quality assurance.

We're proud to be a culture-first company. Our dedication to our employees is why we've appeared on the Times Union Top Workplaces and Albany Business Review Best Places to Work for three consecutive years.

If you have a complex project you'd like to discuss, please call us at 518-356-0039 or email general@jahnelgroup.com, we'd love to hear from you!

Industry
IT & Software
Company Size
51-200 employees
Headquarters
Schenectady, New York
Year Founded
Unknown
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