Senior Full-stack Developer (M/F)
Confirmed on the employer's own hiring board on Oct 14, 2026. First seen by Alion on Sep 29, 2026.
Join our fast-growing startup as a Senior Full-Stack Developer. You'll collaborate closely with the team on product strategy, develop and maintain new features, conduct code reviews, and facilitate knowledge sharing. You'll work on various technical challenges, including building a cap table engine, implementing multi-country compliance, and creating real-time dashboards. The ideal candidate has 5+ years of experience building full-stack TypeScript applications, is comfortable with PostgreSQL and ORMs, and has an understanding of financial calculations and decimal precision.
Missions
- Collaborer avec l'équipe sur la stratégie produit, évaluer l'effort requis pour diverses fonctionnalités et prendre des décisions techniques clés.
- Développer, déployer et maintenir de nouvelles fonctionnalités, tout en effectuant des revues de code et en facilitant le partage des connaissances au sein de l'équipe.
- Construire des systèmes qui suivent la propriété à travers des milliers d'investisseurs avec une précision centime.
Profil recherché
### You're a great match if**Technical skills:**
* 5+ years building full-stack TypeScript applications
* Comfortable with PostgreSQL and ORMs (Prisma preferred)
* Understanding of financial calculations and decimal precision
* Bonus: Experience with fintech, regulatory compliance, or cap table management
**Mindset:**
* You care about correctness-bugs in financial systems have real consequences
* You enjoy domain complexity and learning new business concepts
* You prefer clean architecture over quick hacks
* You communicate clearly with non-technical stakeholders
**Interest:** You have a genuine interest in angel investment and the venture capital world
**Entrepreneurial mindset:** You thrive in fast-paced environments where you have broad responsibilities
**Ownership mentality:** You are a doer and have a bias for action, no task is below you
**Organization skills:** You know how to prioritize and split your tasks efficiently
**Team player:** You enjoy sharing and learning from each other
**Initiative and innovation:** You propose improvements and challenge assumptions constructively
**Product lover:** You fully understand what we want to bring to our users, and you are eager to deliver the best possible UX to them
**Systems thinking:** You are able to step back and rethink our model globally
**Strong attention to details:** Code quality is important for you and you set a high bar
### What we offer
* **A front-row seat in a fast-growing startup** shaping the future of investment operations - ranked 14th in the Sifted 250, which highlights Europe’s 250 startups with the highest percentage revenue growth over the past three years
* A **quality-driven** environment
* **Awesome colleagues** with **high ambitions**
* A **culture of ownership, collaboration, learning and growth**
* Beautiful **offices in central Paris, Toulouse** **and Luxembourg** + flexible remote options for people in other countries
* **Competitive compensation** (including an employee stock options plan)
* Other perks / terms and conditions :
* **Time off:** 25 days of holidays + RTT days
* **Health insurance:** Mutuelle Alan (50% covered by the company)
* **Meals:** A restaurant card with our partner Swile (10€ per workday)
* **Tools:** A MacBook is our standard working tool
* **Transportation:** Forfait Mobilité Douce (600€ /year)