AI-Powered UI Engineer (React/C#) — Build from Day One

Nerdio; Netherlands; On-site; EUR 69,000 - 87,000; Full time

Benefits offered by this job

Competitive salary

Stock options

Health plans

Life and disability plans

Retirement plan

Unlimited flexible PTO

International benefits

Job summary

Nerdio is seeking a Senior Software Engineer to join a ground-up design and build of a new platform, focusing on UI with a secondary role in C# services. You will translate Figma and Claude-generated designs into production-ready front-end code while contributing to backend services that support the UI.

You'll work with Claude Code, Claude API and related tooling to accelerate development, define scalable patterns, and ensure code quality.

Qualifications

• 5+ years of software development experience with strong proficiency in TypeScript and a modern front-end framework (React or equivalent).
• Demonstrated experience implementing pixel-accurate UIs from Figma or similar design tools, including component structure, responsive layout, and design-token/style-guide fidelity.
• Solid, production-level proficiency in C#, sufficient to independently own backend services and APIs as a secondary assignment, not just read or lightly modify existing code.
• Working knowledge of full-stack concerns: REST/GraphQL API design, and basic data modeling.
• Hands-on experience using Claude, ChatGPT, Copilot, or similar AI coding assistants in a real production workflow, not just casual use.
• Strong debugging, troubleshooting, and performance-tuning skills across both the browser and backend services.
• Comfort working in ambiguity, with good judgment on implementation trade-offs as design and product direction sharpen.

Responsibilities

• Implement the platform's UI from Figma files and Claude-generated design templates, translating designer intent into clean, accurate, production-ready components.
• Partner closely with a UI/UX designer throughout the design-to-code process, flagging technical constraints early and proposing feasible alternatives without taking over design decisions.
• As a secondary assignment, design and build the C# services and APIs that support the UI, including data model and infrastructure work in that layer.
• Establish AI-native development workflows using Claude Code and the Claude API to accelerate design-to-code translation, C# service development, scaffolding, refactoring, and test coverage.
• Implement core UI components and the C# services/APIs they depend on, with an emphasis on clean abstractions and long-term maintainability on both sides of the stack.
• Define prompt and context-management patterns (e.g., project-level instructions, skills, sub-agent workflows) that make AI-assisted development repeatable across the team.
• Implement front-end and backend monitoring, telemetry, and diagnostics (performance, error tracking, UX metrics, service health) to improve reliability and operational insight from day one.
• Drive root-cause analysis and troubleshooting across the full stack, from rendering issues down through the C# services, as the system evolves.
• Evaluate and integrate emerging AI developer tooling (agentic coding tools, MCP servers, LLM-assisted testing) as the ecosystem matures.

Skills

TypeScript

React

C#

REST/GraphQL

AI coding tools

Tools

Claude Code

Claude API

Copilot

Job description

Nerdio is seeking a Senior Software Engineer to join a ground-up design and build of a new platform, focusing on UI with a secondary role in C# services. You will translate Figma and Claude-generated designs into production-ready front-end code while contributing to backend services that support the UI.

You'll work with Claude Code, Claude API and related tooling to accelerate development, define scalable patterns, and ensure code quality.