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Swan

Senior Software Engineer

Hybrid

Paris, France

Senior

Full Time

17-12-2025

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Skills

Java Scala PostgreSQL GraphQL CI/CD DevOps Kubernetes Architecture Programming AWS Recruitment GCP Redis Kafka Microservices

Job Specifications

About

Swan is Europe’s embedded banking specialist. We empower software companies to embed banking features like accounts, cards, and payments directly into their products, under their own brand.Swan processes over €1.5 billion in monthly transactions for more than 150 companies—like Pennylane, Indy, Agicap, Libeo, and Lucca. Founded in 2019, the company has received growth capital from leading investors such as Lakestar, Accel, Creandum, Bpifrance and Eight Roads. Swan is a principal member of Mastercard and a licensed financial institution, regulated by the French banking authority (ACPR).

Our mission

Banking belongs in business software

Many software companies already serve small businesses incredibly well: helping them send invoices, run payroll, manage inventory, and more. They’re on a mission to become the central hub for managing every aspect of business life.

But when it comes to financial workflows, there’s still a gap. Too many critical tasks like managing cash flow, tracking payments, or reconciling accounts happen outside the software, across spreadsheets, email threads, banking portals.

It’s a missed opportunity. Business software shouldn’t just record financial activity — it should run it.

To learn more about us: About Swan ; Our story.

Job Description

Swan is looking for a Senior Software Engineer to join is tech team of 70+ people for a specific project over a few months.

The Engineering team is by far the largest at Swan. This team includes Software developers, who build payments and end-customer applications, as well as Infrastructure, DevOps, QA, and Security.

We build with intent, focusing on solving real problems that matter. In a regulated environment, compliance, security, and resilience are at our core. We value ownership, open collaboration, and a shared vocabulary to keep complexity manageable. Simplicity is key, clean, maintainable code wins over clever tricks. We ship fast, learn continuously, and always strive for excellence.

Your mission

You will be technically responsible for one or more projects.
You will have the opportunity to solve problems in one of the most demanding IT domains with a reactive architecture.
You will design with the product team the bank by API.
You will improve the performance of a system with a rapidly growing load.
You will ensure the respect of the architecture rules and of the automated tests

Our technical environment

Java/Scala, Node.js/TypeScript, GraphQL, PostgreSQL, Redis, Kafka, Kubernetes, AWS/GCP

Preferred Experience

You’re a great match if:

Experience: from 5 years as a Software Developer with a strong grasp of back-end systems.
Technical Skills: Proficient in Node.js/TypeScript or Scala
Hands-on experience with automated testing & CI/CD
Bonus: Familiarity with GraphQL, Kafka, and microservices architecture
Passionate about functional programming & open source
Always up to date with tech trends (meetups, blogs, side projects)
Fluent in English
Our ideal teammate: Empathetic. Skilled. Frank. We love to challenge each other, and we leave our egos at the door.

It’s okay if you don’t tick all the boxes — don’t let imposter syndrome prevent you from applying!

Swan is committed to providing a caring work environment for all employees, regardless of age, sex, disability, sexual orientation, race, religion, or belief.

When it comes to recruitment, we’re interested in your work experience, skills, and overall personality. Because diversity makes the workplace stronger and is necessary for Swan’s success, we are intensifying efforts to incorporate concrete actions to help us improve in this area.

About Swan

Perks of being a Swanee:

Our hybrid remote policy offers the best of both worlds: a great office setting and the flexibility to work remotely with at least 3 days each month in our Parisian office.
Relocation package available (If you want to settle in Paris)
Holidays : 25 days + RTT
Meal Vouchers: We provide a Swile card to cover your meals on work days.
Transport: Monthly mobility package for employees. In accordance with the company agreement for sustainable mobilities, you can now use your mobility package to pay for alternative commuting modes.
Health insurance (mutuelle): Alan. This is Swan's health and welfare insurance.
Sports: Thanks to our partnership with Classpass and Gymlib, you can enjoy advantageous discounts on subscriptions. They offer a wide range of sports activities as well as wellness activities.
Well-being support: access to Moka Care for mental health and wellness.
Offsite: Once a year we gather to reconnect, deep-dive into big topics, and relax.
This isn’t a perk, it should be the rule, but diversity and inclusion are important at Swan. We’re working hard to get better every day.

Our values:

Swan’s core values guide our actions daily. Individually, they may seem obvious, but together, they form a unique culture.

Simplicity: Leonardo Da Vinci said: “simplicity is the ultimate sophistica

About the Company

Swan is the leading European fintech specialized in embedded banking. Companies of all kinds can unlock the full potential of their product by embedding Swan's banking features such as accounts, cards, and payments. Founded in 2019, Swan processes over 1 billion euros of transactions per month, for 150+ companies, and operates across thirty European countries. The company has received growth capital from leading VC investors such as Lakestar, Accel, Creandum, Bpifrance and Eight Roads. Swan is a Mastercard principal memb... Know more