Senior Fullstack Engineer - Client Facing Platform EMEA F - m - d H/F Flowdesk
- Paris - 75
- CDI
- Bac +2
- Bac +3, Bac +4
- Bac +5
- Banque • Assurance • Finance
Les missions du poste
Flowdesk's 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.
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.
At Flowdesk, our client platform is the front door to everything we do. It's how institutional clients access trading, settlement, and reporting with confidence. We're looking for a senior backend engineer who can own this platform end-to-end from the API layer to the workflows our clients depend on every day.
This is a hands-on role. You'll design and build backend services in Rust, and you'll set the direction for a small team of backend and fullstack engineers. Together, you'll deliver a product that is fast, reliable, and safe for clients. Security and correctness aren't add-ons here - they're the foundation of our business.
What you'll do
- Take technical ownership of the client-facing platform - design, delivery, and continuous improvement.
- Lead and mentor a small team, keeping the bar high on code quality and secure engineering practices.
- Work directly with product managers and frontend engineers to turn client needs into seamless, end-to-end workflows.
- Build and evolve APIs in Rust, with security and clarity at their core.
- Ensure everything shipped follows best practices (OWASP Top 10, SQL safety, authentication/permissions).
- Keep close to the product - think about features not just as code, but as tools our clients use to trade with confidence.
> 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
> Team events and offsites
Here's what you can expect if you apply
- HR call (30') Get to know Flowdesk and discuss your experience.
- Take home assignment, A practical challenge to assess your technical skills.
- Technical Interview with our Lead Fullstack Engineer (90'), Deep dive into your technical background and problem-solving abilities.
- Team fit (60'), Get to know you future teammates and get an introduction to our working environment.
- Wrap Up Interview (45'), Learn about Flowdesk's culture and how we work.
- C-Level Interview (30')
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.
What we're looking for
- 5+ years of backend engineering, with significant time in crypto, fintech, or trading environments.
- Production experience in Rust is required.
- Proven track record building secure, client-facing APIs.
- Strong knowledge of SQL and event-driven systems.
- A product mindset - you care about the why, not just the how.
- Experience mentoring or leading engineers in small teams.
- A pragmatic commitment to shipping high quality systems
Nice to have
- Familiarity with trading workflows (orders, balances, settlements).
- Contributions to Rust or security-related open source projects.
- Understanding of regulatory/compliance in financial platforms.
Founded in 2020, Flowdesk is a regulated, full-service digital asset trading and technology firm that specializes in market making, OTC, and treasury management services.
With offices globally, we have engineered a trading infrastructure that integrates more than 120 centralized and decentralized exchanges. Combining proprietary technology with significant experience from traditional markets and algorithmic trading, Flowdesk brings control and transparency to digital asset markets.
Hellowork a estimé le salaire pour cette offre
Cette estimation de salaire pour le poste de Senior Fullstack Engineer - Client Facing Platform EMEA F - m - d H/F à Paris est calculée grâce à des offres similaires et aux données de l’INSEE.
Cette fourchette est variable selon expérience.
Salaire brut min
43 800 € / an 3 650 € / mois 24,07 € / heureSalaire brut estimé
52 200 € / an 4 350 € / mois 28,68 € / heureSalaire brut max
65 000 € / an 5 417 € / mois 35,71 € / heureCette information vous semble-t-elle utile ?
Merci pour votre retour !
Publiée le 20/10/2025 - Réf : 24e2a5c6-44b1-4901-900f-694fcd190295
Senior Fullstack Engineer - Client Facing Platform EMEA F - m - d H/F
- Paris - 75
- CDI
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