Senior Backend Software Engineer (Ruby on Rails) in Witten

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 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 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.

Simultaneously, we support accounting firms by enabling them to spend less time on redundant and repetitive tasks and more time on advising and supporting their clients. Already, over 1 300,000 small and medium-sized enterprises (SMEs) and more than 6,500 accounting firms use Pennylane in France!

About us

Pennylane is one of the fastest growing Fintechs in France (and soon to be in Europe!)

In 6 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 1100+ 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 1 300,000 small and medium-sized enterprises (SMEs) and over 6,500 accounting firms use Pennylane in France!

HOW you will contribute to the company as a Senior Software Engineer?

As a Senior Software Engineer at Pennylane, your squad is your primary focus. You will contribute to building reliable, scalable and user-focused products, while helping the engineers around you grow and raising the quality of our technical execution. You will:

• Understand and frame user and product problems, using your product knowledge to help your squad deliver simple, pragmatic and valuable solutions.

• Lead significant technical deliveries within your squad, from understanding the problem to designing, implementing, testing and operating the solution in production.

• Investigate and resolve complex production issues, using monitoring, observability and data analysis tools to identify root causes and prevent recurrence.

• Design and evolve robust solutions, identifying performance, scalability and reliability opportunities and turning them into pragmatic technical improvements.

• Bring strong expertise in at least one major part of our stack, while being able to join a new team and become autonomous on a high-impact initiative within a few weeks.

• Improve engineering practices across the organization, through high-quality code reviews, pair programming, documentation, RFCs and the adoption of AI-assisted development without compromising software quality.

• Act as a role model and a driver for other engineers, sharing knowledge, providing actionable feedback and helping the team continuously improve its technical skills and ways of working.

• Collaborate effectively with other teams when needed, proactively unblocking technical topics and clearly communicating progress, risks, decisions and results to the relevant stakeholders.

• Contribute to the Pennylane tech community, through technical content, onboarding, interviews, incident resolution, tech initiatives, meetups or other community-building activities.

You’re the right candidate if you…

• Have strong hands-on experience with Ruby on Rails (at least 7-8 years)

• Combine technical expertise with strong product and business understanding, enjoy solving complex problems and care deeply about your users.

• Are a collaborative team player, communicate clearly and take ownership of delivering reliable, pragmatic solutions.

• Like being challenged and solving complex problems (accounting is complex in Europe)

• Have strong communication skills and are capable of articulating your ideas clearly

What we offer

• 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

• Wherever you are based, you will get 30 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 to perfect your English or your French

• You’ll get the latest Apple equipment

• 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.

1. If you are based in France, you will have a French contract following French regulation on top of the additional perks : 6 to 13 RTT, 5 weeks PTOs, lunch credits (Swile), Alan Blue healthcare cover and regular events in cities where Pennylaners are mostly presents (Lyon, Bordeaux, Nantes…)

2. 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.

Hiring process

• You will first have a general chat with a Talent Acquisition Manager (30 min)

• You’ll then have a test-home assignment + a debriefing session with two of our software engineers (1 hour)

• You’ll have a last culture-fit discussion with two people from our tech leadership (1 h)

We make sure we move fast ; you can expect the recruitment process with us to last between 15 and 25 days in total.

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.

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

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

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

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