Company details

HEADCOUNT

25-99

ORG TYPE

Startup

SECTOR

Energy & Climate

WEBSITE

http://www.dioxycle.com/

About the company

Dioxycle is a deep tech company building electrochemical systems that turn carbon emissions into everyday chemicals, starting with ethylene. The company describes the core machine as a “carbon electrolyzer” designed to run on electricity and water. Dioxycle publicly positions the work as displacing fossil-based chemical production rather than treating CO₂ as waste. Hiring pages and role descriptions show a heavy lab and pilot focus, with many roles requiring on-site work in Saint-Ouen near Paris.

Locations and presence

Dioxycle operates from Paris (Saint-Ouen) and a US presence in California. Current job listings are primarily Paris-based and largely on-site, reflecting the company’s lab and prototype build-out.

Palpable Score

67.8

/ 100

Dioxycle is unusually explicit about how candidates are assessed, with multi-step interview plans published in job ads and clear expectations around on-site work. The overall score is capped by limited published pay ranges and very thin public evidence on early-career outcomes like promotion timelines or retention.

Pillar 1: Early-career access

Score

13.5

/ 20

The company is actively hiring for true early-career entry points such as “Junior Human Resources (HR) Specialist – Intern” and an “IT Manager – Internship or Apprenticeship,” both framed as on-site learning roles.
Dioxycle previously ran a “Junior Process Engineer – internship” that explicitly said the internship was paid and could convert into a permanent contract if things go well.
The company’s full-time technical openings that are most visible publicly skew experienced, which means graduate-level full-time access is present but not a steady, multi-role pipeline.

Pillar 2: Hiring fairness and transparency

Score

17.0

/ 20

The company lays out interview stages in multiple postings, including timed calls, a technical workshop or case, an on-site visit, and reference calls, so candidates can prepare without guessing.
Dioxycle includes a clear disclosure that AI tools may support parts of screening while stating final decisions are made by humans, which is a rare transparency detail in startup hiring.
The company uses intense cultural language like “work your a** off” and “irreproachable work ethic” on the careers page, which is candid but may discourage candidates who want clearer boundaries around working hours.

Pillar 3: Learning and support

Score

14.0

/ 20

The company repeatedly flags training as part of the offer in early-career postings, rather than treating learning as informal.
Dioxycle’s “Junior Process Engineer – internship” was written around hands-on lab work with support from experienced process engineers, which is the right structure for early-career skill-building in hardware.
The company does not publish a concrete onboarding or mentoring rhythm (for example a 30-60-90 ramp, named mentor, or recurring 1:1 cadence) in the public job ads most likely to be read by juniors.

Pillar 4: Pay fairness and stability

Score

13.5

/ 20

The company positions compensation as “top of market” or “competitive,” and includes stock ownership plans plus health coverage in multiple postings.
Dioxycle explicitly states the Paris-based process engineering internship was paid, and also frames internships as potential feeders into permanent contracts.
The company rarely publishes numeric salary ranges, which limits pay-checking for early-career candidates comparing offers across startups.

Pillar 5: Early-career outcomes

Score

9.8

/ 20

The company has public momentum signals such as a multi-site setup and fundraising announcements, but these do not translate into published early-career progression outcomes.
Dioxycle has a minimal public review footprint on major platforms, which makes it hard to validate retention, manager quality, or early-career sentiment from third-party sources.
The company does not share promotion examples, retention stats, or typical time-to-level-up for junior hires, so outcome scoring stays cautious.

Useful links & resources

Dioxycle Career page (values + entry points)Dioxycle jobs (Lever job board)Junior Process Engineer internship (paid + potential conversion context)