Principal DSP Architect

Larsen & Toubro Limited; Framingham (MA); On-site; USD 180,000 - 260,000; Full time

Job summary

Larsen & Toubro Limited in Framingham, MA is seeking a Sr. Principal DSP Engineer to lead architecture, implementation, and optimization of DSP across multiple product platforms.

You will translate research into scalable production DSP components and provide technical leadership to engineers across locations. The role requires 15+ years of DSP and embedded software experience, strong knowledge of fixed- and floating-point DSPs, and the ability to drive cross-functional projects from concept to

Qualifications

• Deep expertise in DSP and embedded software development.
• Experience delivering production DSP from research.
• Strong communication and leadership across distributed teams.

Responsibilities

• Lead DSP architecture, implementation, integration, and optimization across product platforms.
• Translate research algorithms into scalable production DSP components.
• Define implementation approaches, interfaces, performance requirements, and validation strategies.
• Provide technical leadership and mentoring to DSP engineers across sites.
• Resolve complex DSP performance, memory, and real-time issues.
• Develop production-quality C/C++ for embedded DSP targets.
• Guide fixed-point and floating-point implementation decisions.
• Collaborate with systems, firmware, hardware, QA, and algorithm teams for production readiness.
• Lead hardware bring-up, debugging, profiling, and performance characterization.
• Establish engineering practices for testing, profiling, and code review.

Skills

DSP architecture

Embedded C/C++

Real-time systems

Performance optimization

Mentoring

Cross-functional leadership

Onsite collaboration

Education

Bachelor’s in Electrical/Computer Engineering or related

Master’s or PhD preferred

Tools

Tensilica HiFi

ARM Neon/Helium

RISC-V vector extensions

x64 SIMD

Job description

Job Title: 535610 - Sr. Principal DSP Engineer - Platforming

Location: Framingham, MA

Experience: 15+ Years

Key responsibilities:

• Lead DSP architecture, implementation, integration, and optimization activities across multiple product platforms.
• Translate research algorithms and reference implementations into scalable production DSP components.
• Define implementation approaches, interfaces, performance requirements, and validation strategies.
• Provide technical leadership and mentoring to DSP engineers working across multiple locations.
• Resolve complex performance, memory, numerical precision, and real-time processing issues.
• Review DSP designs and implementations for architecture, quality, scalability, and maintainability.
• Develop and optimize production-quality C/C++ implementations for embedded DSP targets.
• Guide fixed-point and floating-point implementation decisions.
• Optimize implementations for DSP and vector architectures such as Tensilica HiFi, ARM Neon/Helium, RISC-V vector extensions, and x64 SIMD.
• Partner with systems, firmware, hardware, QA, and algorithm teams to drive integration through production.
• Establish strong engineering practices for testing, profiling, validation, code review, and documentation.
• Lead hands-on hardware bring-up, lab debugging, profiling, and performance characterization on reference and product hardware.
• Work directly with onsite engineering teams to rapidly resolve integration issues and make technical trade-off decisions.

Qualification:

• Bachelor’s degree in Electrical engineering, Computer Engineering, Computer Science, or related field; Master's or PhD preferred.
• 15+ years of DSP and embedded software development experience.
• Deep expertise in digital signal processing and real-time embedded systems.
• Significant experience with fixed-point and floating-point DSP implementations.
• Demonstrated experience taking algorithms from research through production.
• Experience leading technically complex, cross-functional engineering efforts.
• Ability to independently diagnose and resolve difficult DSP, performance, and integration problems.
• Strong communication skills and ability to provide technical direction to distributed engineering teams.
• Willingness and ability to work onsite with engineering teams and access hardware/lab environments as needed.