Lead Fullstack Engineer (React+Next.Js) (#5392)

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 SaaS 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 TypeScript.
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 SaaS 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 TypeScript 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 SaaS 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 gRPC and API integrations.
Knowledge of JSON Schema or XML Schema.
Experience with CI/CD pipelines and Azure DevOps.
Familiarity with Agile and Test-Driven Development practices.
We offer*:
Flexible working format - remote, office-based or flexible
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
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