Software Engineer (backend Typescript)

swan.io; Paris, Bordeaux; Sur place; EUR 53 000 - 70 000; Plein temps

Résumé du poste

Swan is looking for a Software Engineer to join our Banking Experience team in Paris. The role focuses on payments and end-customer apps, with a reactive architecture and a regulated environment where security and resilience are core values.

You will work with NodeJS, TypeScript, GraphQL, PostgreSQL, Docker, Kubernetes and AWS to deliver reliable, scalable solutions. You will design with product teams, improve performance under growing load, and ensure architecture rules and automated tests are

Qualifications

• At least 3 years as a Software Developer with strong backend focus and TypeScript skills.
• Strong backend optimization, performance improvements, observability, and SQL query optimization.

Responsabilités

• Technically own one or more projects in the Banking Experience team.
• Solve problems in a demanding IT domain with a reactive architecture.
• Collaborate with product teams to design the Bank by API.

Connaissances

TypeScript

Back-end development

CI/CD

Observability

SQL

English

Outils

NodeJS

GraphQL

PostgreSQL

Docker

Kubernetes

AWS

Description du poste

Swan is looking for a Software Engineer to join our Banking Experience 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

• NodeJS ;TypeScript ;GraphQL ;PostgreSQL ;Kafka ;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

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.

You’re a great match if:

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