Fullstack Software Engineer RoR​/JS W​/M

Are you looking to have an impact on the daily life of millions of entrepreneurs in France (and tomorrow in Europe)?

Are you looking for a work environment that values trust, proactivity, and autonomy?

Are you looking for a work environment that values trust, proactivity, and autonomy?

Are you looking for a work environment that values trust, proactivity, and autonomy?

Are you looking for a work environment that values trust, proactivity, and autonomy?

Are you looking for a work environment that values trust, proactivity, and autonomy?

We aim to become the most beloved financial Operating System of French SMEs and Accounting Firms (and soon, European ones).

We help entrepreneurs rid themselves of time-consuming tasks related to accounting and finance while providing them with access to key financial information to assist in making the best decisions for their business.

• 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://(Use the "Apply for this Job" box below)..
• 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
• Already more than 900,000 small and medium-sized enterprises (SMEs) and over 6000 accounting firms use Pennylane in France!

You will join our Growth Team and work collaboratively with Thomas  the growth engineer team lead within the Marketign website squad.

We are looking for a talented full stack software engineer whose main mission will be to

• - 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 :

• - Experience:
  
  At least 2+ years of professional experience as a Software Engineer.
• - 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).

• - Rails / Java script
• - Vue JS + Nuxt JS
• - PostgreSQL
• - Git / Github

Ideally you’ve already got some knowledge with data tools including…