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Open nowPosted 40 days ago

Software Engineer, Geometry/Simulation (C++)

fabri-usa13 open roles

Where
Billerica, MA
Work mode
On site
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Your applicationOpen nowSoftware Engineer, Geometry/Simulation (C++)fabri-usa · Billerica, MA

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This job: posted 40 days ago

The posting

About Fabri

Fabri is building a fully integrated digital foundry for high-speed precision metal casting. We combine additive manufacturing, custom process software, and advanced casting operations to deliver production-quality metal parts faster and more cost-effectively than traditional methods.

We are an early-stage, well-capitalized startup backed by top-tier investors and major customers. We have shipped our first customer parts and are seeing strong demand from aerospace and industrial customers.

During this stage of the company, the software team works directly with the foundry. This is an on-site role for someone who wants to build software that controls, improves, and scales real-world manufacturing.

The Role

We are looking for a Software Engineer, Geometry & Simulation to build the software systems that connect Fabri's digital manufacturing process end-to-end.

You will primarily work across manufacturing preparation, geometry processing, and simulation, developing software that transforms customer CAD models into manufacturable production workflows. Your work will include build preparation, manufacturability analysis, workflow automation, and machine/process integration. Some projects may involve robotics, AWS, databases, or applied data science, but we do not expect one person to be an expert in all of these areas.

The right candidate is a strong C++ engineer who enjoys ambiguous problems, physical systems, and wearing many hats. Python experience is a plus, but C++ will be your primary development language. You should be comfortable building reliable software around real-world processes, working directly with operators and engineers, and deciding what needs to be automated next.

You will report to the CTO and own important pieces of Fabri's manufacturing software stack.

What You'll Work On

  • Build and extend software pipelines that prepare customer parts for manufacturing.
  • Develop software for geometry processing, manufacturability analysis, build preparation, and production execution.
  • Write C++ software for geometry processing, automation, and manufacturing orchestration.
  • Develop software that automatically slices, supports, and validates customer geometries for manufacturing.
  • Generate manufacturing instructions and machine workflows from customer part geometry.
  • Connect internal software systems with factory workflows, operator tools, and machines.
  • Work closely with manufacturing, process engineering, and operations to turn factory problems into usable software.

Required Skills

  • 3+ years of professional software engineering experience.
  • Strong programming ability in C++17. Python Skills are a plus
  • Experience building backend systems, automation tools, geometry processing software, or technical internal tools.
  • Strong debugging and systems-thinking skills.
  • Comfortable working in ambiguous environments where requirements are not fully specified.
  • Interest in manufacturing, robotics, geometry, hardware, physical processes, or industrial automation.
  • Ability to communicate clearly with both software engineers and non-software teammates.
  • Willingness to work on-site and stay close to the manufacturing process.

Preferred Skills

Any of the following would be useful, but we do not expect candidates to have all of these skills. You will learn all of them on the job.

We are hoping for candidates who have experience with several of the following:

  • Computational geometry, CAD/CAM, slicing, 3D printing, simulation, or robotics.
  • Experience processing or preparing 3D models for manufacturing.
  • Manufacturing execution systems or industrial automation.
  • AWS, containers, batch compute, or deployment infrastructure.
  • Experience working in an early-stage startup environment.

Why Join

  • Build core software for a new manufacturing process from the ground up.
  • Work directly with machines, operators, process engineers, and real production data.
  • Own broad, high-impact systems at an early-stage company.
  • Help define how software, automation, and data scale a digital foundry.
  • Competitive salary, meaningful equity, and strong growth potential.

Fabri is not able to provide visa sponsorship for this position. To comply with ITAR regulations, candidates for this role must be US nationals, including US citizens or lawful permanent residents.

Fabri is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We foster an environment where safety and commitment to quality are central in everything we do.

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