Senior Fullstack Software Engineer

Salary: £66,000 - 106,000 per year

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, regardless of seniority.
• Fluent level in English; French is not a must.
• Strong software engineering skills, including the ability to translate functional requirements into an elegant and simple design and deliver the code.
• Ability to understand the product and customers needs in detail and suggest innovative ideas that deliver value to end users.

Responsibilities:

• Work on performance-critical systems that process and aggregate millions of records in real time.
• Contribute to the design and optimization of our 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.
• Participate in the entire application development lifecycle, including design, coding, and keeping the production platform up and running.

Technologies:

• AI
• Angular
• Backend
• C#
• Cloud
• CSS
• Docker
• Frontend
• Fullstack
• GCP
• Golang
• Java
• JavaScript
• Kubernetes
• Linux
• PostgreSQL
• Python
• RabbitMQ
• React
• Ruby
• Rust
• Terraform
• TypeScript
• Vue
• ASP.NET
• Support
• LESS

More:

We are Pigment, a fast-growing SaaS company founded in 2019, transforming business planning and performance with our AI-powered platform. We work with organizations across Consumer Packaged Goods, Retail, and Technology, and partner with companies like Unilever, Vinci, Kayak, Siemens, and Coca-Cola. Our team of over 500 professionals spans North America and Europe, with offices in Paris, London, New York, Toronto, San Francisco, and Austin. We offer a hybrid working setup for this Fullstack Software Engineer role, competitive salary, equity, free premium health insurance with Alan Blue for you and your family, trust and flexible working hours, and brand new offices in Paris, London, New York, and Toronto. Our engineering culture values user-centricity, pragmatism, curiosity, humility, trust, ownership, and team spirit, and our technical stack includes C# on .NET Core Linux, React, TypeScript, PostgreSQL, Google Cloud Platform, Docker, Kubernetes, Terraform, RabbitMQ, and CircleCI.

last updated 36 week of 2026