Senior Frontend Developer

Koda Tech; Oost-Vlaanderen; Hybride; EUR 60 000 - 90 000; Plein temps

Résumé du poste

Koda Tech is seeking a Frontend Engineer to design, build, and evolve customer-facing web interfaces. You will work in the Product Engineering department in Ghent, with two days on-site per week, shaping UX alongside product managers and designers.

You’ll leverage TypeScript, React, Redux Toolkit, and modern tooling to deliver scalable, accessible experiences. Collaboration, code quality, and continuous learning are key aspects of the role.

Qualifications

• Proficient with TypeScript and modern JavaScript (ES6+).
• Expertise in React (hooks, composition, architecture).
• Experience with large/shared codebases (monorepo a plus).
• Experience with Redux Toolkit and RTK Query.
• Familiar with testing with Jest or Vitest and React Testing Library.
• Experience with Storybook for UI docs.

Responsabilités

• Build, maintain, and evolve customer-facing web interfaces.
• Translate product goals into intuitive, accessible user experiences.
• Collaborate with Product Managers, Designers and Engineers to deliver end‑to‑end.
• Ensure solutions are maintainable, scalable, performant, secure, and well tested.
• Leverage AI tools to improve productivity and code quality.

Connaissances

TypeScript

React

CSS-in-JS

Monorepo

Declarative programming

Outils

Redux Toolkit

RTK Query

Jest

Vitest

Storybook

CI/CD

Git

Description du poste

Department: Product Engineering

Reporting to: Engineering Manager

Location: Ghent (twice a week onsite)

Contract: Payroll or Freelance

Role Mission

As a Frontend Engineer, your mission is to design, build, and evolve solutions that solve real customer problems and support business outcomes.

Responsibilities:

1. Product-Focused Engineering

• Build, maintain, and evolve customer-facing web and cross-platform interfaces
• Translate product goals into intuitive, accessible user experiences
• Ensure solutions are:
• Maintainable and scalable
• Performant and secure
• Tested and observable in production
• Collaborate with engineers to integrate APIs and data flows
• Participate in discovery, experimentation, and iteration
• Contribute to mobile‑first and multi‑device experiences

2. Engineering Quality & Craftsmanship

Apply best practices in:

• Component design and reuse
• Testing and testability
• Performance, accessibility, and resilience
• Error handling and observability
• Take ownership of quality and improve it over time
• Contribute to shared standards and best practices
• Reduce technical debt through pragmatic refactoring
• Improve developer experience (tooling, clarity, onboarding)
• Make sound technical decisions aligned with team and organisation

3. Collaboration & Team Contribution

Work closely with:

• Product Managers (value and trade‑offs)
• Designers (experience and usability)
• Engineers (end‑to‑end delivery)
• Participate in team rituals and feedback loops
• Share knowledge and support team learning
• Proactively unblock work and seek alignment
• Remain flexible beyond strict role boundaries

4. Continuous Learning, AI & Growth

• Continuously develop technical expertise
• Stay up to date with tools and practices
• Use AI‑assisted development tools responsibly to:
• Improve productivity
• Enhance code quality
• Accelerate learning
• Engage with career progression through feedback and impact growth

Requirements:

Core Frontend Stack

• Strong TypeScript and modern JavaScript (ES6+)
• Advanced React (hooks, composition, architecture)
• CSS‑in‑JS, theming, and design tokens
• Experience with large/shared codebases (monorepo a plus)

State Management & Async

• Redux Toolkit and RTK Query
• Handling asynchronous flows and side effects
• RxJS / redux‑observable (nice to have)

Testing & UI Documentation

• Jest or Vitest with React Testing Library
• Writing resilient, maintainable tests
• Storybook for UI development and documentation

Tooling & Ways of Working

• CI pipelines and automated quality gates
• Conventional commits and structured code reviews
• Small, high‑quality commits and merge requests

Engineering Principles

• Declarative, functional‑first approach
• High readability and low cognitive load
• Immutability and modular design
• Strong separation of concerns
• Pragmatic performance optimisation