Fullstack Software Engineer RoR/JS W/M

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., 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 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.

• 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

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.

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!, To thrive at Pennylane in this position, you need to, ️ 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 to perfect your English or your French

You’ll get the latest Apple equipment ⓘ View potential timezone restrictions

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.