European Union, LATAM Work type: Office/Remote Technical Level: Leader Job Category: Software Development Project: Leading platform for electronic agreements We are looking for a talented Senior Full-Stack Engineer to join a team building a modern, large-scale platform that powers intelligent agreement management experiences for millions of users worldwide.

Our platform is at the heart of a global Saa S product used by more than 1.7 million organizations across 180+ countries.

The team develops a unified, widget-based front-end architecture that enables seamless experiences across document creation, sending, signing, and management.

By combining scalable engineering practices with AI-powered workflows, we are transforming the way businesses manage their most important agreements.

As a Senior Engineer, you will play a key role in designing and developing high-performance, reusable frontend solutions while contributing to backend services and platform capabilities.

You will work on complex engineering challenges involving micro-frontends, scalability, reliability, security, and developer productivity.

Responsibilities: Design and build scalable, reusable UI components and frontend solutions using React and Type Script.

Develop and maintain backend services using Node.js and Express.

Contribute to a modern micro-frontend architecture and shared platform capabilities.

Collaborate with cross-functional teams to deliver high-quality features in a fast-paced Saa S environment.

Write well-tested,



maintainable code and contribute to a strong engineering culture.

Improve performance, reliability, observability, and security across the platform.

Participate in the entire software development lifecycle, including architecture discussions, implementation, testing, CI/CD, and production releases.

Requirements: 8+ years of professional software development experience.

Strong expertise with Type Script and React.

Hands-on experience with Node.js, Express, and modern backend development.

Experience building reusable frontend components, design systems, or shared libraries.

Solid understanding of frontend testing practices and tools.

Experience working on large-scale Saa S products.

Knowledge of REST APIs and modern web architecture.

Excellent communication skills and ability to collaborate effectively in distributed teams.

Nice to Have: Experience with Next.js.

Hands-on experience with micro-frontend architecture.

Experience with g RPC and API integrations.

Knowledge of JSON Schema or XML Schema.

Experience with CI/CD pipelines and Azure Dev Ops.

Familiarity with Agile and Test-Driven Development practices.

We offer*: Flexible working format - remote, office-based or adaptable A competitive salary and good compensation package Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more) Active tech communities with regular knowledge sharing Project: Global biopharmaceutical company #J-18808-Ljbffr

📌 Lead fullstack engineer (react+next.js) (#5392)
🏢 N-iX
📍 España