Senior Frontend Engineer (AI Applications)

Gramian Consulting; Poland; On-site; PLN 303,000 - 519,000; Full time

Job summary

Gramian Consultancy is seeking a Senior Frontend Engineer to build responsive, high-performance web applications for AI-driven solutions. You will work with React, Vue, or Angular, integrate REST APIs and WebSockets, and focus on accessibility and reusable components.

The role is a contractor assignment with full-time commitment, Europe-based with remote work now and potential hybrid in Prague in the future.

Qualifications

• 5+ years of frontend development experience.
• Strong hands-on with modern frontend frameworks (React, Vue, Angular).
• Experience building responsive, production-grade web apps.
• Experience with API integration and real-time data streams.

Responsibilities

• Develop interactive, responsive frontend applications across browsers.
• Implement UI with React, Vue, or Angular and reusable components.
• Integrate frontend with REST APIs, WebSockets, and real-time streaming responses.
• Ensure performance, accessibility (WCAG), and robust state management.
• Collaborate with UX, backend, and AI engineering teams.

Skills

Frontend engineering

React

Vue

Angular

REST APIs

WebSockets

WCAG accessibility

Unit tests

Job description

About Gramian

Gramian Consultancy is a boutique consultancy specializing in IT professional services and engineering talent solutions. With a strong background in software engineering and leadership, we help companies build high-performing teams by matching them with professionals who truly fit their needs.

About Gramian

Gramian Consultancy is a boutique consultancy specializing in IT professional services and engineering talent solutions. With a strong background in software engineering and leadership, we help companies build high-performing teams by matching them with professionals who truly fit their needs.

About The Role

Our client is a Big4 Consultancy group that works with leading financial institutions on AI-driven transformation, automation, advanced analytics, and financial crime prevention. Their work spans intelligent fraud detection, AML/KYC modernization, autonomous workflows, enterprise AI platforms, and the secure industrialization of AI in highly regulated environments. We are looking for a Senior Frontend Engineer to build responsive, high-performance web applications for AI-driven solutions. The role focuses on modern frontend frameworks, real-time API integration, state management, accessibility, reusable component architecture, and seamless user experiences across complex enterprise applications.

CONTRACT: Contractor assignment, expected October 2026 - July 2027, with potential extension

COMMITMENT: Full-time

LOCATIONS: Europe-based, preferably CEE; remote, with potential future hybrid work in Prague

PROCESS: Initial qualification followed by technical and client interviews

NOTES: Fluent English is required.

Responsibilities

• Develop interactive, responsive, and cross-browser compatible web applications
• Build frontend solutions using modern frameworks such as React, Vue, or Angular
• Translate UI/UX wireframes and prototypes into maintainable production code
• Integrate frontend applications with REST APIs, WebSockets, and real-time streaming responses
• Optimize loading performance, responsiveness, and client-side state management
• Build reusable UI components and contribute to shared frontend libraries
• Apply WCAG accessibility standards across user-facing interfaces
• Write clean, modular code and component-level unit tests
• Establish frontend development guidelines and reusable engineering patterns
• Collaborate closely with UX, backend, platform, and AI engineering teams

Requirements

• 5-10 years of professional frontend engineering experience
• Strong hands-on experience with React, Vue, Angular, or a comparable modern frontend framework
• Experience building responsive, production-grade web applications
• Hands-on experience integrating frontend applications with APIs and cloud-hosted services
• Experience with client-side state management and complex user sessions
• Strong knowledge of modern frontend performance and browser compatibility practices
• Experience writing component-level tests and maintaining reusable UI components
• Fluent professional English