Senior Fullstack Software Engineer

As a Fullstack Software Engineer you’ll work on performance-critical systems that process and aggregate millions of records in real time, directly enabling our clients to make better, faster decisions. Your role will be mostly working on backend in C#, with some frontend in React. Work on the Core Engine: Contribute to the design and optimization of our proprietary formula and query engine. Solve Complex Problems: Tackle scalability and performance challenges across high-volume, real-time datasets. Shape the Product: Collaborate closely with frontend engineers and product managers to deliver impactful features. Own the Stack: Build and maintain backend services using modern technologies like .NET Core, PostgreSQL, React, and GCP. Drive Innovation: Influence architecture decisions, test new ideas, and continuously improve performance and reliability.

Responsibilities

Work on performance-critical systems that process and aggregate millions of records in real time; Work mostly on backend in C#, with some frontend in React; Contribute to the design and optimization of the proprietary formula and query engine; Tackle scalability and performance challenges across high-volume, real-time datasets; Collaborate closely with frontend engineers and product managers to deliver impactful features; Build and maintain backend services using modern technologies like .NET Core, PostgreSQL, React, and GCP; Influence architecture decisions, test new ideas, and continuously improve performance and reliability

Requirements

Proven experience designing object oriented software with languages such as C#, Java, C++, Golang, Rust, Python or Ruby; Proven experience with JavaScript, CSS and JavaScript libraries or frameworks such as React, Vue.js or Angular; Great team spirit with a problem-solving attitude; A good dose of humility and the willingness to grow; A fluent level in English; Ability to translate functional requirements into an elegant and simple design and deliver the code; Understanding of the product and the customer's needs in detail and ability to suggest innovative ideas

Benefits

Competitive salary; Equity; The best health insurance with Alan Blue entirely free for you and your family; Trust and flexible working hours; Brand new offices in the heart of Paris, London, New-York and Toronto