Salary
≈ $87k – $205k per year (Estimated)
Location
In office (Los Angeles)
First seen by Alion on Oct 24, 2026.
Overview
Company
Impact
Profile match
Headquartered in Montreal, Canada, StreamingFast is a blockchain infrastructure company specializing in high-performance data processing, streaming, and indexing solutions for decentralized networks. The company develops massively scalable, open-source developer tools - such as its proprietary Firehose and Substreams architectures - designed to drastically reduce data latency across high-throughput blockchains. As a core contributor to major protocols like The Graph, it empowers developers, enterprises, and Web3 applications worldwide to efficiently query, process, and analyze complex on-chain data at scale.
Backed by White Star Capital, Diagram
Hadrian - Manufacturing the Future
Hadrian is building autonomous factories to reindustrialize America. By combining AI, advanced software, robotics, and full-stack manufacturing, we help aerospace and defense companies build rockets, satellites, aircraft, ships, and other mission-critical systems up to 10x faster and at significantly lower cost.
Following our $1.37B Series D at a $7.87B valuation, Hadrian is rapidly expanding our manufacturing footprint, launching new capabilities across welding, casting, forging, electronics, additive manufacturing, and more, while scaling our Factory-as-a-Service platform to transform how critical products are built.
Backed by leading investors including JPMorgan Chase, Valor Equity Partners, Andreessen Horowitz, Founders Fund, 137 Ventures, Lux Capital, T. Rowe Price, and Morgan Stanley, we’re building the future of American manufacturing—and looking for exceptional people to help make it happen.
If you’re ready to take on the most challenging and rewarding work of your career while helping create American manufacturing jobs for generations to come, you’re exactly who we’re looking for.
The Role
Hadrian's welding team is building out our weld development center and is looking for dedicated mechanical engineering support. As an R&D Engineer supporting welding, you'll work side by side with welding engineers and welders in a development environment to design tooling, parts/coupons, and fixtures, support equipment buys and setup, and close the gap between weld development and production. This is a hands-on, in-person role split between design and the shop floor, not a design-desk-only position.
What You’ll Do
To conform to U.S. Government export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen or national, lawful permanent resident, protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here.
Use of AI in hiring
Hadrian uses AI-assisted tools in our recruiting and hiring processes to help our team work more efficiently. This may include tools that help organize and analyze recruiting data, as well as an AI-powered notetaker that can record and transcribe interviews and help coordinate feedback. These tools support our team and are not used to make hiring decisions. All candidate evaluations and hiring decisions are performed by humans. If an interview will be recorded, you will be notified in advance and may opt out at any time with no impact on your candidacy. Candidate data processed through these tools is subject to the same protections described in our Privacy Policy.
Consideration of Criminal History
Hadrian will consider for employment qualified applicants with criminal histories in a manner consistent with the requirements of all applicable laws. We do not ask about criminal history on our application, and we do not consider criminal history before making a conditional offer of employment.
Hadrian Is An Equal Opportunity Employer
Hadrian does not unlawfully discriminate on the basis of race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, marital status, mental status, physical disability or any other legally protected status. When necessary, the Company also makes reasonable accommodations for disabled candidates and employees, including for candidates or employees who are disabled by pregnancy, childbirth, or related medical conditions.
Hadrian is building autonomous factories to reindustrialize America. By combining AI, advanced software, robotics, and full-stack manufacturing, we help aerospace and defense companies build rockets, satellites, aircraft, ships, and other mission-critical systems up to 10x faster and at significantly lower cost.
Following our $1.37B Series D at a $7.87B valuation, Hadrian is rapidly expanding our manufacturing footprint, launching new capabilities across welding, casting, forging, electronics, additive manufacturing, and more, while scaling our Factory-as-a-Service platform to transform how critical products are built.
Backed by leading investors including JPMorgan Chase, Valor Equity Partners, Andreessen Horowitz, Founders Fund, 137 Ventures, Lux Capital, T. Rowe Price, and Morgan Stanley, we’re building the future of American manufacturing—and looking for exceptional people to help make it happen.
If you’re ready to take on the most challenging and rewarding work of your career while helping create American manufacturing jobs for generations to come, you’re exactly who we’re looking for.
The Role
Hadrian's welding team is building out our weld development center and is looking for dedicated mechanical engineering support. As an R&D Engineer supporting welding, you'll work side by side with welding engineers and welders in a development environment to design tooling, parts/coupons, and fixtures, support equipment buys and setup, and close the gap between weld development and production. This is a hands-on, in-person role split between design and the shop floor, not a design-desk-only position.
What You’ll Do
- Support welding equipment needs for weld development, including CAD support for buying and setting up new equipment
- Develop concepts for automation, tooling, fixtures, and development parts
- Work directly with welding engineers and welders to weld actual parts in a development setting
- Bridge the gap between automation, tooling, and welding by translating development needs into tooled-up, automatable processes
- Coordinate across Build, Software, Tooling, Automation, and NDT to keep weld development unblocked
- Bachelor's degree in Mechanical Engineering, Welding Engineering, Industrial Engineering, or a related field
- 2+ years of experience in manufacturing or mechanical design
- Proficiency in CAD (SolidWorks, NX, or equivalent) and working knowledge of GD&T and tolerance analysis
- Comfort with shop-floor tooling, fixtures, and metrology
- Exposure to machining, assembly, welding, additive, and inspection processes
- Prior hands-on welding or weld process experience
- Experience designing tooling or fixtures for automated or robotic welding cells
- Familiarity with manufacturing processes and requirements
- A track record of thriving in an undefined, first-of-its-kind role
- Medical, dental, vision, and life insurance plans for employees 401k
- Relocation support may be provided for certain situations, based on business need.
- Flexible vacation policy
- Equity
To conform to U.S. Government export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen or national, lawful permanent resident, protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here.
Use of AI in hiring
Hadrian uses AI-assisted tools in our recruiting and hiring processes to help our team work more efficiently. This may include tools that help organize and analyze recruiting data, as well as an AI-powered notetaker that can record and transcribe interviews and help coordinate feedback. These tools support our team and are not used to make hiring decisions. All candidate evaluations and hiring decisions are performed by humans. If an interview will be recorded, you will be notified in advance and may opt out at any time with no impact on your candidacy. Candidate data processed through these tools is subject to the same protections described in our Privacy Policy.
Consideration of Criminal History
Hadrian will consider for employment qualified applicants with criminal histories in a manner consistent with the requirements of all applicable laws. We do not ask about criminal history on our application, and we do not consider criminal history before making a conditional offer of employment.
Hadrian Is An Equal Opportunity Employer
Hadrian does not unlawfully discriminate on the basis of race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, marital status, mental status, physical disability or any other legally protected status. When necessary, the Company also makes reasonable accommodations for disabled candidates and employees, including for candidates or employees who are disabled by pregnancy, childbirth, or related medical conditions.
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