HID Interaction Algorithm Engineer

Sunnyvale Until 9/21/2026 2+ years exp First posted July 23, 2026 Last posted July 23, 2026
Job description

Join the engineering team that fuses multimodal input to enable seamless interactions on human-computer interfaces like  Vision Pro. Human Interface Devices (HID) is looking for an Interaction Algorithm Engineer to help build the next generation of computing. HID operates at the intersection of hardware, software, and design. The problems you solve will be multidisciplinary and require strong collaboration and communication skills. You’ll prototype ideas at the early stages of development and develop robust solutions through production.

Description

In this role, you will:
- Prototype and define interactions end-to-end, in collaboration with HW, SW, and design partners
- Design user studies and leverage prototypes to define success criteria
- Develop processes for measuring key performance indicators
- Analyze data to identify and drive algorithm improvements
- Create and maintain core algorithms for new interactions and root-cause issues throughout the stack
- Communicate user impacts of technical challenges to cross-functional stakeholders

Minimum Qualifications

2+ years SW development experience (or equivalent internship / research experience)
Proficiency in C++ and Python
Proficiency in signal processing and/or machine learning
Comfortable with 3D mathematics
Experience developing interactions or input technologies
Experience using genAI tools for SW development (Claude Code, Cursor, Codex, etc.)
Able to communicate clearly and collaborate with cross-functional teams
Excellent problem solving and root cause analysis skills
BS/MS/PhD in Computer Science (CS), Electrical Engineering (EE), Human Computer Interaction (HCI), or a related field / equivalent experience

Preferred Qualifications

Experience developing software with agentic workflows
Experience developing software for Augmented Reality (AR) / Virtual Reality (VR) (ex. ARKit)
Experience with Objective-C and/or Swift

About this role

Summary

Develop algorithms for human-computer interactions and input technologies in AR/VR.

Job title

HID Interaction Algorithm Engineer

Experience level

2+ years

Minimum experience

2+ years exp

Industry

software

Location requirements

On-site in Sunnyvale, no remote work allowed.

Salary

Not specified

Management role

No

Skills & keywords

Required skills

C++Pythonsignal processingmachine learning3D mathematicsinteractionsinput technologies

Preferred skills

agentic workflowsAR/VRObjective-CSwift

Specializations

signal processingmachine learning3D mathematicshuman-computer interaction
Locations

Structured locations inferred from the posting.

Sunnyvale, CA, USA

On-site City