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The Role
Owns Python backend systems, data pipelines, REST APIs, automation tools, and database architecture supporting real-time manufacturing and R&D operations. Partners with technicians, engineers, and scientists to translate shop-floor challenges into production software, optimize telemetry and traceability data, define API contracts, and deliver initiatives end to end. The role is fully on-site in South San Francisco or Fremont, California.
Summary Generated by Built In
Diamond Foundry Inc. is solving the thermal limitation at the foundation of today's most exciting tech industries -- AI & cloud compute, electric-car power electronics, and 5G/6G wireless. We have managed to produce the world's first single-crystal diamond wafers and are now on a mission to put a diamond behind every chip. We are the rare unicorn that has grown fast and profitably. We received $515m in funding and are executing a multi-$B expansion plan for one of the greenest forms of tech manufacturing: converting greenhouse gas into diamond wafers using zero-emission energy.
We are looking for an experienced, communicative Senior Software Engineer to own the data pipelines, internal systems, and APIs that power our real-time manufacturing and R&D operations. What we need from you is deep, production-grade Python expertise and the ability to own a project end-to-end: partnering directly with material engineers, technicians, and hardware engineers to turn ambiguous operational challenges into working production software.
This role will be on-site 5 days a week in either our South San Francisco office or our Fremont, CA office.
Responsibilities
- Own technical initiatives from inception to delivery: translate operational needs into technical roadmaps, architectural specs, and deployable code.
- Architect and scale end-to-end Python backends, spanning high-throughput event pipelines, internal REST APIs, and automated data processing tools.
- Interface directly with internal clients (production technicians, metrology specialists, and R&D engineers) to diagnose workflow bottlenecks and validate solutions on the floor.
- Optimize database performance and schema design for high-frequency telemetry, process metrics, and traceability data.
- Partner with our front-end engineers to define clean API contracts and data models for operator-facing UI’s.
Requirements
- 4+ years of software engineering experience with production Python as your primary language (experience with industrial protocols like MQTT, Modbus, OPC-UA, or PLCs is a strong plus).
- Proven end-to-end project ownership with the ability to define roadmaps, write specs, and execute code independently (experience working in manufacturing, hardware-in-the-loop, or physical R&D environments is a plus).
- Full-lifecycle Python backend expertise across REST APIs, event/data pipelines, and automation scripts (hands-on experience with FastAPI, Flask, or async processing is a plus).
- Exceptional interpersonal and communication skills to run discovery directly with non-software stakeholders like scientists, technicians, and operations teams (experience scoping technical requirements directly from physical shop-floor workflows is a plus).
- Strong querying skills with schema design fundamentals.
Diamond Foundry believes in supporting our employees from the workplace to their personal and home life. We provide eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide for both paid and unpaid time away from work. Perks include employee discounts to VRAI. Our benefits begin as early as your first day of employment. Medical and vision coverage are retroactive to your start date, while dental and voluntary benefits take effect once you’ve completed your enrollment.
Diamond Foundry is an Equal Opportunity Employer and considers qualified applicants for employment without regard to race, color, creed, religion, national origin, sex, sexual orientation, gender identity and expression, age, disability, veteran status, or any other protected factor under federal, state or local law.
Diamond Foundry Inc. is committed to operating in full compliance with all applicable state and federal laws. Our commitment extends to ensuring that our manufacturing and engineering departments adhere to the highest standards of legal and regulatory compliance. Additionally, these departments may have specific physical requirements to ensure the safety and efficiency of our operations. We prioritize the well-being of our employees and strive to create a work environment that promotes both legal compliance and the optimal functioning of our manufacturing and engineering processes.
Manufacturing and Engineering Departments Physical Requirements:
-Use appropriate PPE and follow all safety policies, practices, and procedures.
-This position will often: Sit, stand for long periods, walk, grasp, reach with hands and arms, lift below and above shoulders, bend, twist at the waist, climb, balance, stoop, squat, kneel, crawl, talk, hear, see, use fine finger manipulation, and complete repetitive motions.
-Some tasks may require the use of ladders or stairs
-Some tasks may require driving or the use of foot controls
-Lift/carry and push/pull up to 50 pound
This employer participates in E-Verify and will provide the federal government with your Form I-9 information to confirm that you are authorized to work in the U.S.
If E-Verify cannot confirm that you are authorized to work, this employer is required to give you written instructions and an opportunity to contact Department of Homeland Security (DHS) or Social Security Administration (SSA) so you can begin to resolve the issue before the employer can take any action against you, including terminating your employment.
Employers can only use E-Verify once you have accepted a job offer and completed the Form I-9.
Skills Required
- 4+ years of software engineering experience with production Python as the primary language
- End-to-end project ownership, including defining roadmaps, writing specifications, and independently executing code
- Full-lifecycle Python backend expertise across REST APIs, event and data pipelines, and automation scripts
- Exceptional interpersonal and communication skills for working with scientists, technicians, and operations teams
- Strong querying skills and database schema design fundamentals
- Experience with industrial protocols such as MQTT, Modbus, OPC-UA, or PLCs
- Experience with manufacturing, hardware-in-the-loop, or physical R&D environments
- Hands-on experience with FastAPI, Flask, or asynchronous processing
- Experience scoping technical requirements from physical shop-floor workflows
Diamond Foundry Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Diamond Foundry and has not been reviewed or approved by Diamond Foundry.
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Leave & Time Off Breadth — Unlimited PTO and flexible time-off policies are described as available, with some employees citing favorable schedules that support time away. Feedback suggests actual utilization can be positive in certain roles where workload and manager expectations align with policy.
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Healthcare Strength — Health, dental, and vision insurance, along with mental-health resources, are presented as part of a broad package. Some accounts specifically praise the health insurance and benefits scope.
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The Company
What We Do
At Diamond Foundry, our mission is to create the future of diamond. We developed proprietary reactor technology capable of forming plasma as hot as the sun at unprecedented density to produce diamond at mining scale. In our zero-emission foundry, we sustainably create diamond for the jewelry and semiconductor industries. Our VRAI brand brings iconic innovation in diamond jewelry direct to consumers. For more information on how we’re creating the future, visit www.diamondfoundry.com. Fast Company World's Most Innovative Company TIME Best Inventions Business Insider’s 21 Most Innovative Tech Startups CNBC’s Top 50 Disruptors Inc’s 25 Most Disruptive Companies
