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Fullstack Software Engineer RoR/JS W/MPennylane · All France (remote)
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Pennylane

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Fullstack Software Engineer RoR/JS W/M

🗓️ Posted 2026-10-13 All France (remote) Fulltime Hybrid ICT
💰 Salary Not shared 📊 Market 3,333 EUR–5,417 EUR/mo

About the Company

Pennylane is one of the fastest growing Fintechs in France (and soon to be in Europe ) In 5 years of existence, we've managed to : Make ourselves known as a groundbreaking accounting and financial software for small businesses and their accountants Raise a total of 400 millions, including from Sequoia, the famous fund from the Silicon Valley who invested early in companies like Google, Facebook, Airbnb, Stripe, Paypal and much more... Grow from 7 cofounders to 1000 happy Pennylaners : we're now recognized as one of the greatest places to work in France (and also remotely), with a 4.6/5 rating on Glassdoor https://www.glassdoor.fr/Avis/Pennylane-France-Avis-E4171708.htm. Build an international environment with more than 25 nationalities, with a strong remote-friendly culture, where 30% of the employees are already working from all parts of Europe Earn the trust of thousands of customers and accounting firms and obtain outstanding ratings https://www.google.com/search q pennylane&ei O9pOYvm0Co-blwSmhKmIAw&ved 0ahUKEwi5vsWL-4H3AhWPzYUKHSZCCjEQ4dUDCA4&uact 5&oq pennylane&gslcp Cgdnd3Mtd2l6EAMyDQgAEIAEELEDEIMBEAoyCwguEIAEEMcBEK8BMgcIABCABBAKMgcIABCABBAKMgUIABCABDIFCAAQgAQyBQgAEIAEMgcIABCABBAKMgcIABCABBAKMgcIABCABBAKOgcIABBHELADOgkIABCwAxAKEEM6CgguEMcBEK8BEAo6BggAEBYQHjoICAAQFhAKEB46DQguEIAEEMcBEK8BEApKBAhBGABKBAhGGABQ7QFY6wVgugdoAXABeACAAUiIAbMCkgEBNZgBAKABAcgBCcABAQ&sclient gws-wiz Already more than 900,000 small and medium-sized enterprises (SMEs) and

Responsibilities

  • ● inkedin.com/in/thomas-moessner/ originalSubdomain fr the growth engineer team lead within the Marketign website squad.
  • ● Global Scaling: Build and refine the infrastructure supporting our internationalization (multi-language, localized user journeys ).
  • ● Intelligent Automation: Design and deploy AI-driven tools and automated workflows to streamline lead acquisition and personalize user experiences at scale.
  • ● Tracking & Insights: Implement and enhance sophisticated visitor tracking systems to turn raw data into actionable growth levers.
  • ● Ecosystem Connectivity: Design and develop robust APIs to ensure seamless data flow between our internal tools and the broader fintech ecosystem.
  • ● High-Velocity Experimentation: Launch needle-moving projects including A/B tests, white-label integrations, predictive lead scoring, and optimized acquisition funnels.
  • ● Performance Optimization: Maintain and push the limits of our public website and registration funnels for peak conversion across all markets.
  • ● To thrive at Pennylane in this position, you need to :
  • ● Tech Stack: Mastery of Ruby on Rails. Proficiency in a JS Framework (Vue/Nuxt) is a major plus.
  • ● Efficiency Obsession: You know how to leverage AI tools (LLMs, Copilots, etc.) and automation to move faster and smarter than the average dev.
  • ● Communication: Fluent in French & English (B2/C1). German is a bonus
  • ● Adaptability: You are energized by an ever-shifting startup environment and love collaborating with diverse stakeholders (Data, Sales, Marketing).
  • ● THE TECHNOLOGIES WE USE IN THE GROWTH ENGINEERING TEAM
  • ● Rails / Javascript
  • ● Vue JS + Nuxt JS
  • ● Git / Github
  • ● Ideally you've already got some knowledge with data tools including data tools integration (GTM, Segment) or data visualization (Datastudio, Looker) and you're familiar with digital marketing (paid acquisition, conversion, SEO )
  • ● WHAT DO WE DO TO MAKE YOUR WORK LIFE EASIER
  • ● Wherever you are based, you will get 25 vacations days paid by Pennylane