Demo

Software Engineer, Infrastructure (C++)

Fabri
Billerica, MA Full Time
POSTED ON 10/18/2026
AVAILABLE BEFORE 11/24/2026
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, Infrastructure (C ) to build the software systems that connect Fabri's digital manufacturing process end-to-end.

You will primarily work across backend systems, workflow automation, factory software, and machine/process integration, building the software infrastructure that supports and scales production. Your work will include designing reliable backend services, data pipelines, databases, and internal tools that connect machines, operators, and manufacturing workflows. Some projects may involve geometry processing, AWS, 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 backend services, internal tools, and software systems that support factory operations.
  • Develop tools for workflow automation, job setup, scheduling, and production execution.
  • Connect internal software systems with factory workflows, operator tools, machines, and external platforms.
  • Write C software for backend systems, automation, data processing, and manufacturing orchestration.
  • Design reliable data collection systems for process data, machine logs, inspection results, and operator feedback.
  • Build databases and internal infrastructure that make the factory more reliable and scalable.
  • Own and evolve the software infrastructure: build systems, CI/CD pipelines, deployment, cloud resources (AWS), and developer tooling that keep the software team and the factory running reliably.
  • 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, infrastructure software, or technical internal tools.
  • Hands-on experience with software infrastructure: build systems (e.g. CMake), CI/CD pipelines, containers, and deploying and operating services in production.
  • Strong debugging and systems-thinking skills.
  • Comfortable working in ambiguous environments where requirements are not fully specified.
  • Interest in manufacturing, robotics, 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:

  • AWS, containers, batch compute, or deployment infrastructure.
  • Postgres, time-series data, data modeling, or analytics pipelines.
  • Manufacturing execution systems, industrial automation, sensors, machine logs, or IoT data.
  • Experience building backend services, internal platforms, or workflow automation systems.
  • 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.

Salary.com Estimation for Software Engineer, Infrastructure (C++) in Billerica, MA
$88,331 to $107,488
If your compensation planning software is too rigid to deploy winning incentive strategies, it’s time to find an adaptable solution. Compensation Planning
Enhance your organization's compensation strategy with salary data sets that HR and team managers can use to pay your staff right. Surveys & Data Sets

What is the career path for a Software Engineer, Infrastructure (C++)?

Sign up to receive alerts about other jobs on the Software Engineer, Infrastructure (C++) career path by checking the boxes next to the positions that interest you.
Income Estimation: 
$97,257 - $120,701
Income Estimation: 
$123,167 - $152,295
Income Estimation: 
$97,257 - $120,701
Income Estimation: 
$123,167 - $152,295
Employees: Get a Salary Increase
View Core, Job Family, and Industry Job Skills and Competency Data for more than 15,000 Job Titles Skills Library

Job openings at Fabri

  • Fabri Billerica, MA
  • About Fabri Fabri is building a fully integrated digital foundry for high-speed precision metal casting. We combine additive manufacturing, custom process ... more
  • 2 Days Ago

  • Fabri Billerica, MA
  • Fabri is seeking a Mechanical Engineer to design and build the equipment that powers every step of our casting process. You will own mechanical systems fro... more
  • 2 Days Ago

  • Fabri Billerica, MA
  • Build the hiring playbook behind every Fabri foundry Billerica, MA | On-site | Full-time Fabri plans to open one new foundry a year until American casting ... more
  • 7 Days Ago

  • Fabri Billerica, MA
  • About Fabri Fabri is building a fully integrated digital foundry for high-speed precision metal casting. We combine additive manufacturing, custom process ... more
  • 10 Days Ago


Not the job you're looking for? Here are some other Software Engineer, Infrastructure (C++) jobs in the Billerica, MA area that may be a better fit.

  • Siemens EDA (Siemens Digital Industries Software) Burlington, MA
  • Company: Siemens EDA Job Title: Software Engineer – C / Digital Logic Design Job Reference #: 509131 Job Location: Burlington, MA Siemens EDA is looking fo... more
  • 16 Days Ago

  • IBM Lowell, MA
  • Introduction At IBM Software, we transform client challenges into solutions. Building the world’s leading AI-powered, cloud-native products that shape the ... more
  • 20 Days Ago

AI Assistant is available now!

Feel free to start your new journey!