Software Engineer - Payment Team (Scala / TypeScript)

Swan; Paris; Hybride; EUR 53 000 - 70 000; Plein temps

Avantages offerts par ce poste

Relocation package available (If you想t

Holidays: 25 days + RTT

Résumé du poste

Swan in Paris is seeking a Software Engineer to join the Payment team. You will work on back-end services, APIs, and banking features, collaborating with product to design the bank-by-API, and handle growing load with a reactive architecture.

The role requires at least 3 years as a software developer, strong knowledge of Scala and TypeScript, and experience with PostgreSQL, Kafka, GraphQL, Docker, Kubernetes, and AWS.

Qualifications

• 3+ years as a Software Developer with strong back-end skills
• Backend engineering: optimize performance, observability, SQL queries
• DevOps & Architecture: CI/CD, distributed systems
• Continuous learning and keeping up with tech trends
• Fluency in English and passion for functional programming/open source

Responsabilités

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

Connaissances

English fluency

English fluency

Outils

Scala

TypeScript

PostgreSQL

Kafka

GraphQL

Docker

K8S

AWS

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 brand.Swan processes over €1.5 billion in monthly transactions for more than 150 companies-lie 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).

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-lie 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 Software Engineer to join our Payment team.

The Engineering team is by far the largest at Swan (70+ people). 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

• Scala ; TypeScript ; PostgreSQL ; Kafka ; GraphQL ; Docker ; K8S ; AWS

Salary Transparency Statement

In compliance with the EU Pay Transparency Directive (effective as of 2026), Swan is committed to fair and transparent compensation.

Salary Range

Salary Range: this position is classified from Confirmed to Early Senior in our Software Engineer grid. The salary range reflects our internal compensation structure and is based on market benchmarks for similar roles across Europe. For this position, we offer a salary between 53.000€ and 70.000€ (gross annual), depending on your experience and expertise level determined during our technical interviews.

Annual reviews

we conduct structured salary reviews each February, considering performance, professional growth, and market positioning.

Questions about compensation? We encourage open dialogue during the interview process.

Preferred Experience

• Experience: at least 3 years as a Software Developer with a strong grasp of back-end systems and proficiency in Scala/TypeScript.


• Backend Engineering: good mastery of common back-end optimization topics (performance improvements, observability, SQL database queries, and query optimizations).


• DevOps & Architecture: hands‑on experience with automated testing, CI/CD, and exposure to distributed systems or micro-service architectures.


• Continuous Learning: you regularly follow technological improvements to keep abreast of the latest developments (newsletters, conferences, meetups).


• Mindset: fluent in English, passionate about functional programming or open source, and you leave your ego at the door.

Bonus points / If you are ready to bring Senior ownership:

• Product & Project Leadership: you have a proven track record of driving impactful projects from A to Z alongside Product teams, and you have the communication skills to confidently argue and advocate for your technical choices.


• Architecture & Scale: you are used to dealing with high-complexity systems, naturally designing code with long-term scalability, clean architecture, and maintainability in mind.

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 sophistication.\" If something's convoluted or confusing, we work extra hard to break it down. - Making complex things simply is what we do.

Long Term

We always play the long game, whether it's to support our partners in their growth journey, or make tangible commitments to climate action.

Excellence

We are a team of experts who consistently go all out to create pixel-perfect banking services and exceed our partners' expectations- whatever it takes.