Jobs in the United States

25+ jobs

Save this search

Added just now
KC
Wastewater Process Engineer II - Brightwater
King County
Woodinville, WA
- $54.77 to $69.43 USD / hour
The Wastewater Process Engineer II will play a key role on the WTD process team and will participate in a diverse body of work such as overseeing and providing technical support for…
Added just now
Regional Facilities Engineer
Hartwig Staffing
Oklahoma City, OK
Hartwig Staffing has partnered with a local growing oil and gas company that is adding a Facilities Engineer to their team. This will be a key role within the organization. Pay is $200K -…
Added 2 mins ago
G
Civil Engineer (Professional Engineer)
GPAC
San Antonio, TX
- $90,000 to $130,000 USD / year
They are looking to add a Senior Civil Engineer to their growing Engineering team. The Civil Engineer's (Professional Engineer) primary role is to provide engineering design & leadership…
Added 2 mins ago
G
Civil Engineer (Professional Engineer)
GPAC
San Marcos, TX
- $90,000 to $130,000 USD / year
They are looking to add a Senior Civil Engineer to their growing Engineering team. The Civil Engineer's (Professional Engineer) primary role is to provide engineering design & leadership…
Added 2 mins ago
Transportation Licensed Engineer
GPAC
Saint Louis, MO
Provide support and project lead for planning, design, and reporting on various transportation projects
Added 2 mins ago
G
Civil Engineer (Professional Engineer)
GPAC
Des Moines, IA
- $90,000 to $130,000 USD / year
They are looking to add a Senior Civil Engineer to their growing Engineering team. The Civil Engineer's (Professional Engineer) primary role is to provide engineering design & leadership…
Added 2 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 3 mins ago
Transportation Licensed Engineer
GPAC
Fort Lauderdale, FL
Provide support and project lead for planning, design, and reporting on various transportation projects
Added 3 mins ago
G
Civil Engineer (Professional Engineer)
GPAC
Estero, FL
- $90,000 to $140,000 USD / year
They are looking to add a Senior Civil Engineer to their growing Engineering team. The Civil Engineer's (Professional Engineer) primary role is to provide engineering design & leadership…
Added 4 mins ago
Senior Security GRC Engineer, AI & Automation
American Express Global Business Travel
Concord, NH
AmexGBT’s Security GRC team is looking for a talented Senior Security GRC Engineer to design, build, and scale automation and AI-driven solutions that modernize our governance, risk, and…
Added 4 mins ago
Senior Electrical Engineer - Space
BAE Systems
Hudson, NH
…assigned tasks across these programs as well as research and design to support future work for this customer set as well as for any new customers. Most of the programs are long-term…
Added 4 mins ago
Test Engineer II - Microwave
BAE Systems
Nashua, NH
Support production with troubleshooting and debug of electro-mechanical assemblies, working directly with technicians and design engineering personnel.
Added 4 mins ago
Entry Level Software Engineer
Jacobs
Nashua, NH
…generation aviation solutions to our customers across the globe. We design, build, and secure critical military aircraft solutions using unique technology applications and Agile software…
Added 4 mins ago
O
Associate Support Engineer
Oracle
Concord, NH
- $21.3 to $45.05 USD / hour
…experienced peers to report and support the resolution of routine design, reliability, and maintenance issues. Maintains service request and/or product documentation and learns to create…
Added 4 mins ago
O
Senior Core Infrastructure Engineer - Nashville, TN
Oracle
Concord, NH
- $79,200 to $209,500 USD / year
System Design & Architecture - System Scalability:
Added 4 mins ago
CH
Data Analyst
Cayuse Holdings
Concord, NH
- $100,000 to $110,000 USD / year
The Data Engineer/Analyst collaborates with clients, data scientists, and software engineers to develop and optimize data pipelines, ETL processes, and database structures that support IRS…
Added 4 mins ago
Senior Software Engineer (Institutional, Financing)
Coinbase
Concord, NH
As a Senior Software Engineer on the Financing Engineering team within the Institutional group, you'll design, build, and scale the systems that safely manage billions of dollars in loans…
Added 4 mins ago
Senior Network Engineer
Cognizant
Concord, NH
Cognizant is seeking a Senior Network Engineer to design, implement, secure, operate, and optimize enterprise datacenter, campus, branch, wireless, and hybrid-cloud networks. This role…
Added 4 mins ago
Software Engineer
Teradata
Concord, NH
This position is for a Software Engineer in the POD Services team within the TD Factory team. The position involves development, integration, functional and performance testing, and fault…
Added 4 mins ago
AI Automation Architect - Manufacturing and MES processes- Remote
Cognizant
Concord, NH
…fundamentally connect people with processes. Within Cognizant IOT, we engineer industry-aligned, IoT-enabled products that merge industry needs with human drivers. Our intelligent products…
Added 4 mins ago
Platform Engineer - Remote
SitusAMC
Concord, NH
Design and develop scalable stateful and stateless AWS applications using modern tools, cloud architecture, and software design patterns.
Added 4 mins ago
Software Engineer, Infrastructure - Central Growth
Meta
Concord, NH
Software Engineer, Infrastructure - Central Growth Responsibilities:
Added 4 mins ago
Senior Telecom Engineer
Maximus
Concord, NH
Maximus is seeking an experienced Senior Telecom Engineer to lead the design, implementation, and optimization of Genesys Cloud solutions. This role is responsible for executing large-scale…
Added 4 mins ago
Vice President, Cloud Platform Engineer
SitusAMC
Concord, NH
…Docker, Kubernetes, and familiar with Git development. The Engineer is expected to provide strategy and implement enterprise-scale automation for scalability, performance, security, and…
Added 4 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…

Indigo Ethylene

Process Engineer (Polymers)

El Segundo, CA, United States

Apply About employer

Applications open in a new tab.

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

•

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).

•

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.

Apply About employer

Report this job