Senior Fullstack Engineer - Client Facing Platform EMEA (F/M/D)

Flowdesk; Paris; Sur place; EUR 100 000 - 125 000; Plein temps

Résumé du poste

A financial technology firm in Paris seeks a Senior Engineer to scale its client platform, crucial for business expansion. You'll architect interfaces, lead backend and frontend services, and work closely with product leadership. Ideal candidates have over 5 years of experience in JavaScript frameworks and proficiency in English. This role offers a collaborative environment with competitive benefits.

Prestations

50% transportation costs covered

Swile lunch voucher (€9.25, 60% covered)

Health insurance fully covered

Gym membership contribution

Top-notch equipment provided

Team events and offsites

Qualifications

• At least 5 years of professional experience with JavaScript frameworks.
• Proficient in React and solid experience with Node.js or Rust.
• Professional proficiency in English is required; French is a bonus.
• Experience in financial markets or DeFi is a strong plus.

Responsabilités

• Scale the client platform and architect institutional-grade interfaces.
• Lead design and implementation of backend and frontend services.
• Partner with product leadership to define long-term technical roadmap.

Connaissances

JavaScript frameworks proficiency

React Experience

Node.js or Rust experience

Test frameworks usage

UX/UI affinity

Financial markets or DeFi experience

Web application security best practices

Problem-solving mindset

Outils

TypeScript

React

Node.js

Rust

GCP

NATS

Description du poste

Flowdesk mission is to build a global financial institution for digital assets, one designed from the ground up for market integrity and efficiency.

To achieve this in a rapidly evolving market, we apply a disciplined, first-principles approach to everything we do. This approach is embedded in our core services, from institutional liquidity provision, trading solutions, OTC execution to our comprehensive treasury management offerings. This is how we cut through the noise and build robust and scalable systems across all our business lines.

Therefore, we seek individuals who are driven by this systematic approach. Joining Flowdesk means you will be a key contributor in building and scaling a more transparent and efficient financial markets infrastructure.

We are looking for a senior engineer to scale our client platform, a mission critical platform central to our business expansion, designed to distribute complex financial and technological products while providing a seamless, institutional-grade client experience.

As the direct engineering partner to both the tech product owner and business product owner while simultaneously leading the technical direction for the engineering team, this unique position gives you both deep business exposure and the authority to translate strategy into execution.

In this capacity, you are accountable to co-shape the platform's architectural integrity, lead its execution, and ensure the engineering effort drives tangible commercial outcomes.

Envisaged scope of responsibility would be a 50/50 split between Front-End and Back-End

• Frontend Architecture, architect and develop the institutional-grade interfaces that expose our complex product suite. Work with the product and design team to create intuitive and rich user experiences for our clients.
• Core Services & Business Logic, take ownership and lead both the implementation and the design of robust and scalable backend and frontend services needed for the platform.
• Strategic Partnership, partner with product leadership to define the long-term technical roadmap, ensuring engineering capabilities are aligned with the firm's strategic business goals.

Tech Stack

• For Frontend we use TypeScript, React, Styled-components, TailwindCSS, react-query, redux-toolkit
• For Backend we use Node.js(Nest), Rust(Actix-web)
• For the Infrastructure, NATS, GCP, GKE

You can find a more detailed list here Flowdesk Stackshare

What we’re looking for

• With at least 5 years of professional experience, you are proficient in JavaScript frameworks, especially React, and have solid experience with NodeJS or Rust.
• You are skilled in using test frameworks to ensure the reliability and scalability of your code.
• Professional proficiency in English is required, and French language skills are a bonus.
• You possess a keen UX/UI affinity, with a proven track record of developing intuitive and impactful user interfaces.
• Experience in financial markets or DeFi is a strong plus.
• Familiarity with security best practices for web applications.
• Curious, problem-solving mindset with a passion for cutting-edge technologies.

> International environment (English is the main language)

> 50% of transportation costs & a sustainable mobility agreement

> Swile lunch voucher (€9.25 per day, 60% covered)

> 100% Alan Blue covered for you and your children

> Wellpass contribution to gym membership

> Top of the range equipment, Macbook, iPhone, keyboard, laptop stand, 4K monitor & headphones

> Team events and offsites

Here's what you can expect if you apply

1. HR call (30') Get to know Flowdesk and discuss your experience.
2. Take home assignment, A practical challenge to assess your technical skills.
3. Technical Interview with our Lead Fullstack Engineer (90'), Deep dive into your technical background and problem-solving abilities.
4. Team fit (60’), Get to know you future teammates and get an introduction to our working environment.
5. Head of Interview (30') and Culture Fit Interview (45'), Learn about Flowdesk’s culture and how we work.
   

We focus on conversations, not trick questions. These discussions will help you understand how Flowdesk operates and allow you to share your journey and what you’re looking for in your next role.

If you measure your success not by features shipped, but by the business impact of the systems you build, then this role offers the level of accountability you’re looking for. Let’s get in touch and discuss about the specific challenges and ownership this role entails.