Software Engineer (backend Typescript)

swanio; Paris; Sur place; EUR 53 000 - 70 000; Plein temps

Avantages offerts par ce poste

Hybrid remote policy

Relocation package to Paris

Health insurance (mutuelle)

Résumé du poste

Swan is seeking a Software Engineer to join its tech team of 70+ for a multi-month project. The engineering team spans software developers, infrastructure, devops, QA and security, with a focus on a reactive architecture.

You will collaborate with the product team to design the bank-by-API, optimize backend performance, and ensure adherence to architecture rules and automated tests while contributing to a high-load, secure system.

Qualifications

• At least 3 years as a Software Developer with backend focus and TS proficiency.
• Strong backend optimization, observability, SQL queries, and tuning.
• Experience with CI/CD, automated testing, and distributed/microservice architectures.

Responsabilités

• Be technically responsible for one or more projects.
• Solve problems in a demanding IT domain with a reactive architecture.
• Design with the product team the API bank.
• Improve performance of a system with growing load.
• Ensure architecture rules and automated tests are respected.

Connaissances

Back-end systems

TypeScript

Observability

CI/CD

Distributed systems

English fluency

Outils

NodeJS

GraphQL

PostgreSQL

Kafka

Docker

Kubernetes

AWS

Description du poste

Job description

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

The engineering team is the largest at Swan. It includes software developers, infrastructure, devops, QA, and security.

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.

Preferred experience

• 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.

Benefits

• 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.
• 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.
• Diversity and inclusion: important at Swan. We’re working hard to get better every day.

EEO statement

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.