Principal Software Engineer-Simulators

Acceler8 Talent is seeking a Principal Software Engineer (Simulator Engineer) to join an early stage startup backed by a Tier-1 VC that is rethinking AI infrastructure from first principles.

Founded by industry veterans with a track record of shipping some of the industry's most successful products, this company is innovating at the chip and system level to deliver an order of magnitude better performance-per-watt for inference, which would mean a huge economic shift for anyone running large scale models.

As a Principal Simulator Engineer, you will act as technical lead on the development of performance andfunctional models that guide architecture decisions and accelerate hardware–software co-design in a fast-moving startup environment.

Responsibilities:

● Design, implement, and maintain processor simulators (performance and/or functional models)

● Model microarchitectural components (pipelines, memory hierarchy, interconnects, accelerators)

● Traces generation and curation to make them suitable for the targeted performance analysis goals

● Analyze simulation results to inform architecture tradeoffs and optimizations

● Collaborate closely with architecture, hardware, and compiler teams

● Own critical simulation infrastructure from concept through production use

Experience:

● 5+ years of software engineering experience, ideally in systems, architecture, or EDA domains

● Strong C/C++ and Python skills with large, complex codebases

● Experience with processor simulators, architectural modeling, or performance analysis, especially “from-scratch” simulator development

● Solid understanding of computer architecture and microarchitecture

● Ability to work independently and make technical decisions in an early startup

Nice to Have:

● Experience with AI/ML accelerators, GPUs, or heterogeneous systems

● Familiarity with simulators such as gem5, gem5-SALAM, or proprietary modeling tools

If you're looking for massive ownership, huge impact, and the opportunity to build from the ground up, please apply here or reach out to me at ltomaszko@acceler8talent.com to hear more.