Jobs in the United States

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Added 2 mins ago
Systems Engineer for Large Public Venues (East Coast)
Hewlett Packard Enterprise
All, NY · All, DE · All, GA · All, PA · Boston, MA · All, NC · All, OH · All, MD · All, FL
The Systems Engineer for Large Public Venues on the East Coast will be mainly responsible for providing technical support and leadership in the creation of deliverable Wi-Fi and wireless…
Added 11 mins ago
Manufacturing & Quality Engineer (Journeyman)
Sabre Systems LLC
Patuxent River, MD
…System Program Office with oversight and guidance provided by a senior Government Civilian M&Q…
Added 15 mins ago
Manager Information Technology 3
Northrop Grumman
Linthicum Heights, MD
Added 15 mins ago
Embedded Software Engineer II
Wabtec Corporation
Germantown, MD
…Braking Systems, and Train Control Equipment. In this role, the Senior Embedded Software Engineer will work with a cross-functional Engineering team to design and develop new…
Added 15 mins ago
DevOps Engineer (Hybrid) - 31013
Huntington Ingalls Industries
Fort Meade, MD
…and will be addressed by the recruiter during the interview…
Added 15 mins ago
DevOps Engineer - $20K Sign On Bonus - 31011
Huntington Ingalls Industries
Fort Meade, MD
…and will be addressed by the recruiter during the interview…
Added 15 mins ago
Sentinel - Staff Systems Engineer - Lab Test Capability Lead
Northrop Grumman
Roy, UT · Roy
Northrop Grumman Defense Systems is seeking a Staff Systems Engineer - Lab Test Capability Lead to join the Sentinel Systems Engineering team located in Roy, UT. Northrop Grumman supports…
Added 15 mins ago
DevOps Engineer - $20K Sign On Bonus - 31012
Huntington Ingalls Industries
Fort Meade, MD
…and will be addressed by the recruiter during the interview…
Added 15 mins ago
DevOps Engineer (Hybrid) - 31007
Huntington Ingalls Industries
Columbia, MD
…and will be addressed by the recruiter during the interview…
Added 16 mins ago
F5 Network Security Engineer, Senior
BOOZ, ALLEN & HAMILTON, INC.
Fort Meade, MD
As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect…
Added 16 mins ago
Security Engineer
BOOZ, ALLEN & HAMILTON, INC.
Annapolis Junction, MD
Develop relationships quickly and easily with other teams, communicating the complexities of security with a wide variety of audiences, including senior management.
Added 16 mins ago
EG
Quality Assurance Engineer - PHP
Eliassen Group
Annapolis, MD
- $40 to $50 USD / hour
Our client seeks a results-driven Senior Quality Assurance Engineer to support Policyholder Portal applications. The role requires manual, automation, mobile, API, and database testing…
Added 22 mins ago
Responsible AI Engineer Manager/Senior Manager
Accenture LLP Company
NY
We’re looking to grow our Responsible AI team and if you’re an experienced RAI Engineer with a Responsible AI background, we’d love to hear from you.
Added 43 mins ago
Senior Process Engineer
Western Lithium Corp
Winnemucca, NV
Added 45 mins ago
Senior MuleSoft Engineer
Core4ce Careers
Remote, United States
Core4ce is seeking a Senior MuleSoft engineer to design, develop, and implement integration solutions using the MuleSoft Anytime Platform for the Defense Health Agency (DHA). In this role,…
Added 50 mins ago
Senior Software Technical Program Manager
Muon Space
San Jose, CA
As a Senior TPM, you’ll help lead large initiatives and keep teams aligned, unblock issues quickly, and deliver critical software capabilities that power Muon’s mission. You will provide…
Added 50 mins ago
Senior Software Engineer, Ground Station Platform
Muon Space
San Jose, CA
Muon is looking for a Senior Software Engineer to join our team and help scale our core platforms. In this role, you'll design foundational architecture, ship customer-facing features with…
Added 51 mins ago
Senior Electrical Engineer - Space
BAE Systems
Hudson, NH
Due to continued growth, BAE Systems has an opening for a Senior Electrical Engineer in Hudson, NH. BAE Systems is one of the world's leading defense contractors and a stable Fortune 500…
Added 52 mins ago
EG
Quality Assurance Engineer - PHP
Eliassen Group
Concord, NH
- $40 to $50 USD / hour
Our client seeks a results-driven Senior Quality Assurance Engineer to support Policyholder Portal applications. The role requires manual, automation, mobile, API, and database testing…
Added 55 mins ago
Systems Engineer for Large Public Venues (East Coast)
Hewlett Packard Enterprise
All, NY · All, DE · All, GA · All, PA · Boston, MA · All, NC · All, OH · All, MD · All, FL
The Systems Engineer for Large Public Venues on the East Coast will be mainly responsible for providing technical support and leadership in the creation of deliverable Wi-Fi and wireless…
Added 55 mins ago
PM
Lead Forward Deployed Engineer
Prologis Management
Denver, CO
- $200,000 to $285,000 USD / year
You will structure ambiguous programs, set technical direction, guide Senior FDEs and partner engineers, resolve cross-functional blockers and create patterns that can be reused across…
Added 59 mins ago
Intern, Field Service Engineer
ASM
United States
As a Field Service Engineer Intern, you’ll gain hands-on experience supporting advanced semiconductor equipment while learning how engineers help customers keep complex manufacturing…
Added 59 mins ago
BC
Coatings Engineer
Brunswick Corporation
Fond du Lac, WI
- $62,800 to $100,800 USD / year
As a Coatings Engineer at Mercury Marine, you will be responsible for providing engineering support to a Senior Coatings Engineer to maintain and improve marine paints and coatings for…
Added 1 hour ago
Mid Level/Senior Application Security & Akamai Onboarding Engineer
Insight Global
Woonsocket, RI
We are looking for a Senior Akamai Engineer to lead the onboarding and security of applications onto the Akamai platform.
Added 1 hour ago
EG
Quality Assurance Engineer - PHP
Eliassen Group
Baton Rouge, LA
- $40 to $50 USD / hour
Our client seeks a results-driven Senior Quality Assurance Engineer to support Policyholder Portal applications. The role requires manual, automation, mobile, API, and database testing…

Indigo Ethylene

Process Engineer (Polymers)

El Segundo, CA, United States

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Job details

Experience: Mid-level (around 5 years) to senior industry experience: close to the nuts and bolts of design (no fresh grads)
Posting language: English

Original job description

Process Engineer (Polymers) - El Segundo, CA / US

About Roosevelt Talent

Roosevelt Talent is a recruitment agency specializing in helping ClimateTech and frontier technology startups hire.

We believe the right people are the foundation of every successful climate company. The teams solving the world's toughest energy challenges deserve a hiring partner that moves with the same urgency and ambition.

The challenge: Traditional recruiting is expensive, and often misses the best candidates. We change that. We proactively find exceptional talent, deliver a premium candidate experience, and help startups hire top performers at a transparent, affordable cost.

Reach out if you want a genuine hiring partner – not another mercenary.

About Our Client Roosevelt Talent is working with Indigo Ethylene, an early-stage chemicals startup founded by UC Berkeley alumni that replaces traditional steam cracking with a proprietary catalytic reactor process to make ethylene, the building block of most plastics.

Its working unit already produces ethylene at roughly half the usual cost, and the company's first commercial product will be high-density polyethylene (HDPE) plastic pellets, aimed at a ~$600B plastics market at about 50% lower cost.

The founders are Garrow Geer (CEO; Berkeley Physics, ex-SpaceX and xAI) and Gregory Tate (PhD, 13 years developing chemical catalysts).

Indigo recently closed a venture round that gives it roughly 3-4 years of runway, and it is now moving from pilot to its first commercial plant.

The Role Our client is hiring a Process Engineer (Polymers) to own the engineering of its polymerization reactor trains: the step that turns its low-cost ethylene into HDPE pellets.

The company's core expertise is the front end (its ethane-to-ethylene catalyst technology); this hire covers the polymerization side and works hand in hand with the company's Process Engineer so the polymerization design integrates with the overall ethane-to-ethylene-to-HDPE process design.

Reporting to the technical co-founder, you will engineer the polymerization portion of the process to hit target HDPE properties (catalyst and reactor geometry selection, residence time, grams of Ziegler-Natta catalyst per kg of product, degassing steps), model it in a process simulation package, and help evaluate pilot output (a few hundred kilograms of plastic per day) as the company moves from pilot to its first commercial plant.

The search is US-wide, with relocation to the engineering office in El Segundo (Los Angeles area). Travel is expected to be minimal.

Qualifications & Skills

Required

Experience designing polymerization processes (engineering of polymerization reactor trains), ideally in plastics / HDPE production
Ability to model polymerization processes with a software package (any tool, from Aspen to COMSOL) so the model integrates with the overall process design
Mid-level (around 5 years) to senior industry experience: close to the nuts and bolts of design (no fresh grads)
Motivated, high-energy, and up for a demanding startup schedule
Motivated by the technology and mission (make plastic, in America, and 50% cheaper)
Wants ownership and to build: a prime mover, not a cog in the machine
Easy to work with; ignores workplace politics and stays focused on the work
US work authorization

Nice to have:

Aspen or ChemCAD experience, specifically Aspen Polymers
Downstream HDPE product testing (glass transition, brittle point, stress-strain / yield curves, molecular weight distribution) against customer specs

Benefits

Strong, above market comp offered at the base salary, along with equity in the company; Indigo aims to pay at or slightly above market for top talent
Willing to consider relocation support
Be one of the first engineers at a well-funded startup (3-4 years of runway), helping build its first commercial plant
A long-term path into catalyst research: Indigo's 10-year vision is a "Bell Labs" of catalysis funded by plastics revenue, with engineers able to rotate into research roles
Health and other benefits

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Approximate Process

Expect a concise interview process (we're looking for people soon; target is to have this hire in seat before the end of 2026)
Speak with us (Roosevelt) for a screening, then a ~45 minutes with CEO Garrow Geer, a 45-60 minute technical screen with scenario-based problem solving with Gregory Tate, then a final session talking through a hypothetical technical problem with both founders (no NDA or IP involved), then offer (approximately).

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Note This role requires US work authorization. The search is US-wide; candidates open to relocating to the engineering office in El Segundo, CA (Los Angeles area) are welcome. Our client is an equal opportunity employer.

Application

If you are interested in this role and believe you are a good fit (ie: have designed polymerization processes and can model them in a process simulation package) apply today.

If you have any problems applying, you can reach out to Silas@roosevelttalent.com with your updated resume and reason for interest.

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