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# Principal Software Engineer

- **Company:** Iconstaff
- **Location:** Cambridge, MA, United States
- **Contract:** Permanent contract
- **Skills:** Android Software Development, C++ (Programming Language), Mobile Application Software, Python (Programming Language), Machine Learning, NumPy, Tensorflow, SciPy, Signal Processing, Data Streaming, Data Processing, Pytorch, Ios Frameworks, Pandas, Objective C++, Software Library
- **Published:** September 24, 2026
- **Apply:** https://www.juju.com/job/16_7b725ff919

## About the Role

· Experience developing platform-independent software libraries in "modern" C++ (C++11 or later dialects)

· Experience optimizing code for CPU and memory efficiency

· Excellent communication and collaboration skills

· Customer obsessed, demonstrates initiative, has a learning mindset, takes ownership

· Proven ability to deliver results

· An analytical mindset

· Experience with real-time streaming systems

· Signal processing expertise

· Python knowledge, especially with libraries used by data scientists (NumPy, Pandas, SciPy, etc.) preferred

· Familiarity with Machine-Learning libraries (PyTorch, CoreML, TensorFlow, etc.) a plus

· Experience in Android development preferred

· Experience in iOS development: Swift, Objective-C a plus

· Experience in Python extension development such as Pybind preferred

## Description

We have partnered with a cutting-edge data company to make an important senior engineering hire. We are looking for a collaborative, customer-focused, and creative principal software engineer to develop a high-performance mobile application framework that powers on-device machine learning models, enabling advanced data processing on Android and iOS platforms.

Responsibilities:

· As part of a small, fast-paced team, tackle complex problems and turn them into effective business solutions.

· Analyze and convert business and functional specifications, as well as change requests, into actionable technical specifications for implementation.

· Independently break down complex technical requirements into manageable, implementable components; develop high-performance software solutions that are maintainable, scalable, reliable, and testable.

· Participate actively in code and design reviews to ensure quality and alignment with best practices.

· Adhere to company-defined development and operational standards and processes.

· Take on additional tasks as they arise, supporting team and project needs.


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