Senior Software Engineer

swan.io; Paris; Hybride; EUR 60 000 - 80 000; Plein temps

Résumé du poste

A leading fintech company in Paris is seeking a Senior Software Engineer to join its tech team. You will be responsible for multiple projects in a dynamic environment focused on backend systems. Candidates should have at least 5 years of experience and be proficient in Scala, with a strong understanding of automated testing, CI/CD, and back-end development. The role supports a hybrid remote policy, allowing flexibility with work location.

Prestations

Hybrid remote policy

Relocation package

25 days RTT

Meal vouchers

Transport package

Health insurance

Sports partnerships

Well-being support

Annual offsite gathering

Qualifications

• 5+ years of experience as a Software Developer.
• Strong grasp of back‑end systems.
• Hands-on experience with automated testing & CI/CD.

Responsabilités

• Be technically responsible for one or more projects.
• Solve problems in a demanding IT domain.
• Design the bank by API with the product team.

Connaissances

Backend systems

Proficient in Scala

Automated testing & CI/CD

Familiar with GraphQL

Kafka

Microservices architecture

Functional programming

Outils

Java

Spring

AWS

PostgreSQL

Redis

Kubernetes

GCP

Description du poste

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 processes over €1.5 billion in monthly transactions for more than 150 companies including 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. 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 and banking portals. It’s a missed opportunity. Business software should not just record financial activity – it should run it.

Job description

Swan is looking for a Senior Software Engineer to join its tech team of 70 people for a specific project over a few months. The engineering team is by far the largest at Swan, including 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; 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 the bank by API with the product team. You will improve the performance of a system with a rapidly growing load. You will ensure adherence to the architecture rules and automated tests.

Our technical environment

Java / Scala | GraphQL | PostgreSQL | Redis | Kafka | Kubernetes | AWS / GCP

Preferred experience

• Experience : from 5 years as a Software Developer with a strong grasp of back‑end systems.
• Technical Skills : Proficient in either Scala.
• Hands‑on experience with automated testing & CI/CD.
• 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.

Perks of being a Swanee

• Hybrid remote policy offering the best of both worlds: a great office setting and 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 workdays.
• Transport: Monthly mobility package for sustainable commutes.
• Health insurance (mutuelle): Alan. This is Swan’s health and welfare insurance.
• Sports: Partnership with ClassPass and Gymlib for discounts on subscriptions.
• 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.

Our values

• Simplicity : “Simplicity is the ultimate sophistication.” If something is convoluted or confusing we work extra hard to break it down.
• Long Term : We always play the long game, supporting our partners in their growth journey and committing to tangible climate action.
• Excellence : We consistently go all out to create pixel‑perfect banking services and exceed partner expectations.
• Be Human : We believe in kindness and integrity, caring about greater issues that affect our planet.

You can find out more about our culture.

Recruitment process

• A 30‑min video call with our Talent Acquisition Manager to understand your career expectations and answer your questions.
• A live coding interview with two Software Engineers.
• A hiring manager interview with an Engineering Manager.
• An interview with our Engineering Director and our CTO.

Key Skills

Spring, .NET, C/C++, Go, React, OOP, C#, AWS, Data Structures, Software Development, Java, Distributed Systems

Employment Type : Full Time

Experience : years

Vacancy : 1