Senior Audio Engineer

Rose International; Redmond; On-site; AUD 171,000 - 256,000; Full time

Job summary

Rose International is seeking a contingent Audio Render Tuning Engineer to support an AR glasses audio program. You will perform hands-on lab tuning of the speaker system, focusing on render-path DSP tuning using an internal embedded framework and MATLAB tools.

The role requires real-world tuning of micro-speakers, strong acoustics knowledge, and the ability to explain decisions to cross-functional partners.

Qualifications

• Bachelor's degree in Electrical Engineering, Mechanical Engineering, Acoustics Engineering, or a related technical discipline.
• Hands-on DSP tuning on a speaker-type device with real-world tuning experience.
• Experience with micro-speakers or small-format acoustic designs is essential.
• Proven ability to render tuning decisions and explain rationale to cross-functional teams.
• Strong acoustics fundamentals and understanding of frequency response, driver resonance, and cavity effects.
• Experience with HATS/GRAS and audio system testing
• Familiarity with MATLAB-based tuning tools and internal tuning ecosystems

Responsibilities

• Render DSP tuning for AR glasses speaker systems using an embedded audio DSP framework and MATLAB tools.
• Design and apply equalization, dynamic range compression, and limiter parameters to optimize loudness and sound quality.
• Characterize devices; collect frequency response, THD, and impedance data under controlled conditions.
• Generate, compile, and validate tuning profiles for device firmware deployment.
• Collaborate with hardware, firmware, algorithms, and research teams to align tuning with system requirements.
• Maintain tuning documentation, test reports, and configuration records for iterations and releases.
• Ramp up on internal audio DSP ecosystem and related tooling with support from internal teams

Skills

DSP tuning

Acoustics fundamentals

Hands-on testing

HATS/GRAS experience

Render tuning

Speaker characterization

MATLAB tuning tools

Communication

Embedded audio development

Education

Bachelor's degree in Electrical Engineering, Mechanical Engineering, Acoustics Engineering, or related technical discipline

Tools

Meta internal tuning toolchain

MATLAB-based tuning tools

Audio DSP ecosystem

Embedded audio development tooling

Job description

• Bachelor's degree in Electrical Engineering, Mechanical Engineering, Acoustics Engineering, or a related technical discipline

Degree Required

• Bachelor's degree in Electrical Engineering, Mechanical Engineering, Acoustics Engineering, or a related technical discipline

Must-haves Skills

• Micro-speaker / small-format experience. Hands-on work with micro-speakers and small, open-ear acoustic designs. Experience with large-format or music equipment (instrument amplification, studio gear, consumer loudspeakers) does not transfer.
• Render tuning on shipped products. Personal contribution to tuning for products that reached market, with the ability to walk through specific decisions.
• Solid, fast acoustics fundamentals. Confident reasoning on cavity effects on frequency response and driver resonance behavior — without long hesitation.
• Practical test experience. First-hand HATS/GRAS use, audio system testing, and speech quality evaluation.
• Render pipeline depth. EQ, DRC, limiters, and speaker protection
• Tuning-oriented over theoretical. Strong modeling skills are a plus, but the role's center of gravity is practical tuning and evaluation.
• Clear communication. Structured, concise answers; able to explain technical reasoning to cross-functional partners.
• Operates with limited guidance.
• Hands-on DSP tuning on a speaker-type device. This is the single most important requirement. Knowing about these algorithms or having tested them is not sufficient — the candidate must have personally performed the tuning.
• Audio DSP fundamentals. Must understand what equalization, dynamic range compression, limiting, and speaker protection do, how they function, how they are used, and what the trade-offs are.
• Ability to apply and tune existing algorithms on an audio system (an audio systems engineer profile). Writing algorithms from scratch is not required.

Preferred Skills

Strong signals we value

• End-to-end ownership of an audio feature (modeling through evaluation); a balance of structured listening and objective measurement (frequency response, THD, distortion, compression, attack/release); comfort in a matrixed org
• Direct AR/VR glasses or other head-worn audio device experience.
• Transducer-level characterization and speaker integration experience (T/S parameters, Klippel, impedance, excursion).
• Exposure to embedded audio middleware or firmware-level audio bring-up (Audio Weaver, Qualcomm QACT, ADSP integration).

Description

We are looking for a contingent Audio Render Tuning Engineer to support Client research AR glasses audio program. This role focuses on render-path DSP tuning of the speaker system using Client internally-developed embedded audio processing framework and tuning tools. The successful candidate will be hands-on in the lab, working closely with the Research Audio team to deliver a tuned, shipping-quality speaker experience.

Key Responsibilities

• Render DSP Tuning: Perform speaker render-path tuning for research AR glasses using the company's internally-developed embedded audio DSP framework and associated MATLAB-based tuning tools
• Tuning Components: Design and apply equalization filters, tune dynamic range compression and limiter parameters to optimize loudness, dynamics, sound quality, and distortion across use cases (media, voice, speech) while preserving speaker integrity
• Speaker Characterization & Baseline Measurement: Measure devices to establish baseline performance, collect frequency response, distortion (THD), and impedance data in anechoic or controlled acoustic environments
• Tuning Profile Management: Generate, compile, and validate tuning profiles via Meta’s internal tuning toolchain for deployment to device firmware
• Collaboration with Cross-Functional Teams: Work with hardware, firmware, algorithms, and research teams to align tuning with system-level requirements
• Documentation: Maintain tuning documentation, test reports, and configuration records for each tuning iteration and release candidate
• Tool Onboarding: Ramp up on Meta’s internal audio DSP ecosystem including graphical pipeline editors, render tuning tools, and device control utilities with support from internal tooling teams

Pursuant to the California Fair Chance Act, Los Angeles County Fair Chance Ordinance for Employers, Los Angeles Fair Chance Initiative for Hiring Ordinance, and San Francisco Fair Chance Ordinance, qualified applicants will be considered for assignment with arrest and conviction records. Criminal history may have a direct, adverse, and negative relationship with some of the material job duties of this position. These include the duties and responsibilities listed above, as well as the abilities to adhere to company policies, exercise sound judgment, effectively manage stress and work safely and respectfully with others, exhibit trustworthiness, meet client expectations, standards, and accompanying requirements, and safeguard business operations and company reputation.

• **Only those lawfully authorized to work in the designated country associated with the position will be considered.**
• **Please note that all Position start dates and duration are estimates and may be reduced or lengthened based upon a client’s business needs and requirements.**

About Rose

• Founded in 1993
• Office Locations Across the U.S.
• 150+ Clients: Corporations and Government Agencies
• Employee Oriented Company
• Challenging Assignments Across the U.S.
• Continuous Professional Development

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