Senior React Engineer

Lineate is a US-based international software development company with over two decades of experience.

From Intelligent Document Processing(IDP) and Agentic RAG systems to scalable cloud architectures, we turn complex ideas into real, measurable results.

We deliver AI-driven custom solutions for FinTech, HealthTech, AdTech, and beyond, empowering businesses to grow smarter, faster, and more efficiently.

Our expertise falls into three main categories:

• Building Custom AI Solutions: Deploying high-impact, AI-enabled technology utilizing IDP, Agentic RAG.
• Cloud and Data Infrastructure: Optimizing business operations with our data management and cloud computing solutions.
• Team Augmentation: Providing specialized experts in FinTech, AdTech, and HealthTech to integrate seamlessly and accelerate project timelines.
• Our goal is not just to build technology, but to build the future operating model for our clients.

What you’ll do

• Build and maintain modern web applications using React and JavaScript (ES6+)
• Develop clean, responsive UIs with HTML5, CSS3
• Work with React-based architectures, and optionally UI5 or Web Components
• Collaborate closely with design, product, and engineering teams to deliver high-quality features
• Help translate UX and business needs into clear, implementable technical requirements
• Write and maintain clear technical documentation and test reports
• Support end-to-end testing and quality assurance processes
• Track and help resolve production issues together with engineering teams
• Explore and apply AI tools and technologies (LLMs, MCP servers, AI-assisted workflows) to improve delivery speed and efficiency

What we’re looking for

• 5+ years of experience in frontend development
• Strong expertise in JavaScript, React, HTML5, CSS3
• Experience delivering production-grade frontend applications
• Familiarity with UI5, Web Components, or similar frameworks is a plus
• Interest in or exposure to AI/LLM technologies is a strong advantage
• Strong analytical mindset and ability to simplify complex problems
• Independent, proactive, and comfortable owning features end-to-end
• Experience with structured testing and documentation practices