Senior Full Stack Developer

Wematch Ltd.; Paris; Sur place; EUR 90 000 - 130 000; Plein temps

Résumé du poste

Wematch Ltd. in Paris or Tel Aviv is seeking a Senior Full Stack Developer to own our production application, ensuring stability, performance and scalability while driving continuous improvement. You’ll work with Tech leads and global teams to design, implement and troubleshoot features.

The role demands strong full‑stack expertise with Node.js, React, Express.js, and cloud services, plus a proactive, collaborative approach to security, reliability, and scalable architectures.

Qualifications

• Experience developing and maintaining production applications.
• Expertise in Express.js, asynchronous programming, and API design.
• Strong cloud experience (AWS preferred).
• Database knowledge, preferably NoSQL (MongoDB, Firebase, etc.).
• Autonomous problem solver with strong communication skills.

Responsabilités

• Develop & enhance Wematch platform using Node.js, React, and cloud services.
• Manage & optimize production application, ensuring uptime and performance.
• Lead architectural decisions for scalability and security.
• Monitor, troubleshoot & resolve production issues proactively.
• Mentor junior developers and contribute to best practices.

Connaissances

Node.js

React

Express.js

API design

Asynchronous programming

Cloud services

NoSQL databases

Production applications management

Communication skills

Mentoring

Outils

Docker

Description du poste

We’re seeking a highly motivated and passionate Senior Full Stack Developer to join our Paris or Tel Aviv team. In this role, you’ll take ownership of our production application, ensuring its stability, performance, and scalability while driving continuous improvements and innovation. This role requires strong technical expertise in full-stack development, cloud infrastructure, and API design, and you’ll work hands‑on with Tech leads and global teams to drive development, troubleshoot production issues, and build new features.

About Wematch

Wematch is on a mission to lead the digital transformation of the Securities Financing markets. Back in 2017, we created our award-winning solution which digitises dealing workflows with banks, clients, and internal teams. Our tools, which include smart matching, negotiation, lifecycle management, sales to trader, and intra and external flows, drive efficiencies across financial institutions’ operations.

Our Platform is used by 1000+ users at 90+ financial institutions across the globe and features several asset classes, including Securities Lending, Repos, and Total Return Swaps. Over the past couple of years, we have raised more than $40m in equity funding from global financial institutions and VCs to fuel our global expansion.

Wematch is a fast‑growing FinTech startup disrupting a traditional market. We work closely with the world’s largest banks, offering an innovative trading platform. Despite our growth, we maintain a tight‑knit, highly skilled team where your work makes an immediate impact.

What You’ll Do

• Develop & enhance our platform using Node.js, React, and cloud services
• Manage & optimize our production application, ensuring uptime and performance
• Lead architectural decisions for scalability and security
• Monitor, troubleshoot & resolve production issues proactively
• Mentor junior developers and contribute to best practices

What We’re Looking For

• Experience managing and maintaining production applications
• Expertise in Express.js, asynchronous programming, and API design
• Strong cloud experience (AWS preferred)
• Database knowledge, preferably NoSQL (MongoDB, Firebase, etc.)
• Autonomous problem solver with strong communication skills

Nice to Have

• Experience with Docker, cloud architecture, or FinTech

Why Join Us?

• Work on cutting‑edge tech with real impact
• Be a key player in a fast‑growing startup
• Collaborate with a top‑tier team & CTO
• Own a live production system and drive its evolution