---
title: 'Fullstack Software Engineer RoR/JS W/M at Pennylane SAS'
canonical: 'https://feeny.ai/job/fullstack-software-engineer-ror-js-w-m-pennylane-sas-all-gh62gtkx7d2v'
type: 'job'
last_seen: '2026-10-16'
---

# Fullstack Software Engineer RoR/JS W/M at Pennylane SAS

- **Company:** [Pennylane SAS](https://feeny.ai/companies/pennylane-sas)
- **Location:** All, France
- **Employment:** full-time
- **Work type:** remote
- **Posted:** 2026-10-13
- **Last confirmed live:** 2026-10-16
- **Apply:** https://jobs.ashbyhq.com/pennylane/18f252a7-7b19-44b6-b175-6dfcaea8b2e8/application

**Skills:** Ruby on Rails, JavaScript, Vue, Nuxt, PostgreSQL, Git, Github, AI Tools, Automation, APIs, German, Segment, Datastudio, Looker, GTM, English

> Join the Growth Team to build infrastructure for internationalization, design AI-driven automation tools, and develop robust APIs. You will implement tracking systems, optimize performance, and launch experiments to drive user acquisition and engagement for Pennylane's global market.

## Job description

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 our [Engineering principles](https://medium.com/pennylane-engineering/our-engineering-principles-ab0613a0574d) aligned with your vision? Then Pennylane is the right place for you !

Our vision 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.

## About us

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&gs_lcp=Cgdnd3Mtd2l6EAMyDQgAEIAEELEDEIMBEAoyCwguEIAEEMcBEK8BMgcIABCABBAKMgcIABCABBAKMgUIABCABDIFCAAQgAQyBQgAEIAEMgcIABCABBAKMgcIABCABBAKMgcIABCABBAKOgcIABBHELADOgkIABCwAxAKEEM6CgguEMcBEK8BEAo6BggAEBYQHjoICAAQFhAKEB46DQguEIAEEMcBEK8BEApKBAhBGABKBAhGGABQ7QFY6wVgugdoAXABeACAAUiIAbMCkgEBNZgBAKABAcgBCcABAQ&sclient=gws-wiz) 🚀 Already more than 900,000 small and medium-sized enterprises (SMEs) and over 6000 accounting firms use Pennylane in France!

## Your mission

You will join our Growth Team and work collaboratively with [Thomas](https://www.linkedin.com/in/thomas-moessner/?originalSubdomain=fr) 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.

Who are we looking for ? 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).

The technologies we use in the Growth Engineering team ⏬

- Rails / Javascript
- Vue JS + Nuxt JS
- PostgreSQL
- 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 💵 You’ll have a competitive compensation package 📈 You'll get company shares to enjoy a piece of the success story you're building with us 🏡 You’ll have a budget to turn your home into a more comfortable workspace, as well as a monthly allowance to work from a coworking space whenever you feel like it ⛹️ Through our partner Gymlib, you’ll have access to 8000 fitness spaces in Europe and more than 300 activities related to wellness 🇬🇧 You’ll have access to [Busuu](https://www.busuu.com/fr/p/start-learning?utm_medium=cpc&utm_source=google&utm_campaign=FR_FR_Web_Brand_E&utm_group=FR_FR_Web_Brand_E&utm_term=busuu&gclid=CjwKCAjw682TBhATEiwA9crl34OqnbJDliinEXFZNqOcb6391KXrgq4ZDDwEiwMdtTdtuVULvuF7HhoCgZEQAvD_BwE&gclsrc=aw.ds) to perfect your English or your French 💻 You’ll get the latest Apple equipment 🏢 Depending on the teams and the requirements of the position - you'll be able to work remotely from your country of residence, as long as it is in Europe and within a maximum time difference of two hours from the CET time zone 🎉 We are committed to regularly coming together for company events such as Tech Days (which bring remote Pennylaners together every 3 months) or our annual company seminar, fostering significant moments of cohesion for everyone.

If you are based in France, you will have a French contract following French regulation on top of the additional perks : 6 to 12 RTT, 5 weeks PTOs, lunch credits (Swile), Alan Blue healthcare cover and regular events in cities where Pennylaners are mostly presents (Lyon, Bordeaux, Nantes…) We're working on providing those last advantages to our people based outside of France as well, but it can be quite more complex depending on different countries.

Who are we looking for ? To thrive at Pennylane, you need : -To speak English (level is assessed and appreciated according to the department you’re applying to) -To be energized by an ever-shifting work environment -To be highly collaborative (within your team or other stakeholders) -Sufficiently experienced to prioritize business-led actions on your day to day activity

We know that some people are less likely to apply than others, if they don’t feel like they meet the full list of criteria. If you’re hesitating, we encourage you to apply : who knows, it might be the start of a meaningful and long-lasting collaboration.

Important information for candidates Recruitment scam attempts are on the rise. We invite you to remain vigilant during your exchanges. Applications through official channels only : apply exclusively through our job postings published on our official platforms (career site, official partner pages). Always verify the sender's email address: our communications are sent from professional email addresses with the domains @pennylane.com or @pennylane-partners.com We will never ask you for payment or financial information (bank details, payment for an interview, equipment purchases, etc.) as part of the recruitment process. If such a request is made to you, it is fraudulent. We invite you to not respond and to report it to us immediately.

We also want to emphasize that we fully embrace diversity, equity and inclusion and that we’re doing our best to create a safe and inclusive environment. We are committed to providing an equal employment opportunity regardless of gender, sexual orientation, origin, disabilities, or any other traits that make you who you are. If anything, diversity makes us a more fun place to work at. 🇫🇷 Données personnelles Pennylane traite vos données pour gérer votre candidature et évaluer votre adéquation au poste. Si votre candidature n’aboutit pas, vos données peuvent être conservées 2 ans à compter de notre dernier échange ou de la clôture du recrutement afin de constituer & gérer un vivier de candidats. Vous pouvez vous opposer à tout moment et demander la suppression de vos données en écrivant à : dpo@pennylane.com. Notre [data policy](https://www.pennylane.com/fr/vos-donnees-personnelles-recrutement)

🇬🇧 Personal Data Pennylane processes your data to manage your application and assess your suitability for the position. If your application is unsuccessful, your data may be retained for 2 years from our last exchange or the closing of the recruitment process, in order to build and manage a candidate pool. You may object at any time and request the deletion of your data by writing to dpo@pennylane.com. [Learn more](https://www.pennylane.com/fr/vos-donnees-personnelles-recrutement)

🇩🇪 Personenbezogene Daten Pennylane verarbeitet Ihre Daten, um Ihre Bewerbung zu bearbeiten und Ihre Eignung für die Stelle zu beurteilen. Sollte Ihre Bewerbung nicht erfolgreich sein, können Ihre Daten bis zu 2 Jahre ab unserem letzten Austausch oder dem Abschluss des Rekrutierungsverfahrens gespeichert werden, um einen Kandidatenpool aufzubauen und zu verwalten. Sie können jederzeit Widerspruch einlegen und die Löschung Ihrer Daten beantragen, indem Sie an dpo@pennylane.com schreiben. [Mehr erfahren](https://www.pennylane.com/fr/vos-donnees-personnelles-recrutement)

🇪🇸 Datos personales Pennylane trata sus datos para gestionar su candidatura y evaluar su idoneidad para el puesto. En caso de que su candidatura no sea seleccionada, sus datos podrán conservarse hasta 2 años a partir de nuestro último contacto o de la finalización del proceso de selección, con el fin de constituir y gestionar una reserva de candidatos. Puede oponerse en cualquier momento y solicitar la eliminación de sus datos escribiendo a dpo@pennylane.com. [Más información](https://www.pennylane.com/fr/vos-donnees-personnelles-recrutement)

## About Pennylane SAS

## Company Overview
- **One-liner**: Pennylane builds a financial operating system (OS) for European SMEs, consolidating accounting, invoicing, payments, and cash management into a single platform.
- **Entity Type**: Private (Series E, unicorn)
- **Headquarters**: Paris, France
- **Founded**: 2020
- **Founders**: Arthur Waller (CEO), Quentin (tech co-founder), Thierry (tech co-founder)

## Core Business
- **Primary industry/industries**: Financial technology (fintech) – accounting, invoicing, payments, expense management, cash flow, and tax filing for SMEs.
- **Target customers**: B2B – European small and medium-sized enterprises (SMEs) and their accountants.
- **Mission or purpose statement**: To allow business owners to make better decisions and accountants to focus on advising their clients ([pennylane.com/careers](https://www.pennylane.com/careers/)). The vision is to change the lives of thousands of entrepreneurs throughout Europe.

## Products & Services
- **Financial OS Platform (SaaS)**: A single source of truth for financial and accounting data. Entrepreneurs use it for invoicing, payment collection, supplier payments, expense management, cash flow, and profitability tracking. Accountants use it for bookkeeping and tax filings. The platform also enables third parties to offer value-added financial services. ([linkedin.com/company/pennylaneaccounting](https://www.linkedin.com/company/pennylaneaccounting/jobs/))

## Market Standing
- **Valuation/Market Cap**: Not publicly disclosed – but Pennylane is classified as a unicorn (private company valued over $1B) according to Dealroom ([dealroom.co/companies/pennylane](https://dealroom.co/companies/pennylane/)).
- **Key Metric**: **Total Funding** – $460.29M (CB Insights), $496M (PitchBook), or $419.5M (Dealroom) across various rounds. Latest Series E: $240M (PitchBook) or $175M (Dealroom). Conflicting reports are noted. Additionally, Pennylane serves **350,000 SMEs** and **4,500 accounting firms** ([pennylane.com/careers](https://www.pennylane.com/careers/)).
- **Notable Investors/Partners**: DST Global, Meritech Capital Partners, CapitalG, TCV, Blackstone, Sequoia Capital, and others ([cbinsights.com/company/pennylane](https://www.cbinsights.com/company/pennylane)).
- **Growth Signals**: Headcount grew 63.7% year-over-year (862 employees per LinkedIn), with 1,000 employees per PitchBook. The company acquired HeyBilly in October 2024 to expand its offering. Planned expansion into additional European markets starting in 2024.

## Competitive Advantages
- **All-in-one platform**: Combines accounting, payments, invoicing, and cash management in a single OS, reducing the need for multiple tools.
- **Dual-sided network effect**: Serves both entrepreneurs and accountants, creating switching costs as both sides adopt the platform.
- **Remote-first engineering team from day one**: Built a distributed culture that attracts top talent across Europe.
- **Strong investor backing**: Supported by top-tier global funds (Blackstone, Sequoia, CapitalG, DST Global), providing financial stability and strategic guidance.

## Strategic Focus
- **Scale rapidly**: Aim to become one of the top fintech leaders in Europe within 2–3 years ([pennylane.com/careers](https://www.pennylane.com/careers/)).
- **International expansion**: Currently focused on France, with plans to expand across Continental Europe.
- **Deepen product**: Continue building the financial OS to include more value-added services (e.g., lending, insurance) leveraging the data platform.
- **AI & automation**: Integrate AI/ML to automate bookkeeping, tax filings, and financial insights.

## Why Work Here
- **Remote-first culture**: The tech team has been remote-first from the start, with processes designed for distributed work. You can work from anywhere in Europe, with optional coworking memberships and equipment provided ([pennylane.com/careers](https://www.pennylane.com/careers/)).
- **Diverse & international team**: Over 700 “Pennylaners” representing 34 nationalities, with a language policy that keeps code and team communication in English.
- **Growth & learning**: Great mentors and experienced engineers; high learning curve due to rapid scaling and ambitious goals.
- **Perks & wellness**: Coworking membership, any equipment you need, comprehensive work-expense coverage, monthly remote events, quarterly tech meetups in Paris, and a yearly company offsite.
- **Commitment to inclusion**: Detailed 2025 action plan for professional equality (gender parity in recruitment, bias awareness, equal pay policies). Parental leave support is also mentioned.
- **Hybrid office option**: Paris office available (2-4 rue Jules Lefebvre, 75009). The whole team meets once a year for a team-building offsite.

## Sources
1. [pennylane.com/careers](https://www.pennylane.com/careers/)
2. [cbinsights.com/company/pennylane](https://www.cbinsights.com/company/pennylane)
3. [pitchbook.com/profiles/company/435217-06](https://pitchbook.com/profiles/company/435217-06)
4. [dealroom.co/companies/pennylane](https://dealroom.co/companies/pennylane/)
5. [linkedin.com/company/pennylaneaccounting](https://www.linkedin.com/company/pennylaneaccounting/jobs/)

## Other roles at Pennylane SAS

- [Financial Services Regulatory Lead H/F](https://feeny.ai/job/financial-services-regulatory-lead-h-f-pennylane-sas-all-y722q3e6874s) — All, France
- [CISO](https://feeny.ai/job/ciso-pennylane-sas-all-5x0qjt5hxa99) — All, France
- [Partner Marketing Specialist](https://feeny.ai/job/partner-marketing-specialist-pennylane-sas-all-dsr3syjggjmg) — All, France
- [Lead Fraud & AML Ops](https://feeny.ai/job/lead-fraud-aml-ops-pennylane-sas-paris-3avmqf92ds9r) — Paris, France
- [Lead Credit Ops H/F](https://feeny.ai/job/lead-credit-ops-h-f-pennylane-sas-all-mnqhwxsnsbjh) — All, France
- [Senior Tech Recruiter  M/F 🇫🇷🇬🇧](https://feeny.ai/job/senior-tech-recruiter-m-f-pennylane-sas-france-xj5nyh4v15m2) — France
- [Senior Strategy & Operations - Core Accounting](https://feeny.ai/job/senior-strategy-operations-core-accounting-pennylane-sas-paris-m8m2gx1qz7d7) — Paris, France
- [Team Lead Website](https://feeny.ai/job/team-lead-website-pennylane-sas-all-ynztb4k7j3mw) — All, France
- [Team Lead Website](https://feeny.ai/job/team-lead-website-pennylane-sas-paris-drhxrycjk1mn) — Paris, France
- [Growth Operations & Automation Specialist](https://feeny.ai/job/growth-operations-automation-specialist-pennylane-sas-paris-zer5st7h9777) — Paris, France