Senior Frontend Engineer: React & TypeScript Architect

Nordic Investin Group Aktiebolag; Stockholms kommun; On-site; SEK 900,000 - 1,150,000; Full time

Job summary

Nordic Investin is seeking a Senior Frontend Engineer (React + TypeScript) to own frontend architecture, performance, and accessibility for a high-value web product. You will collaborate with design, product, and backend engineers, delivering across testing, accessibility, and performance improvements in rapid delivery cycles.

You will work with a partner company and contribute to decision-making about maintainability and production behavior, while shipping hands-on frontend work.

Qualifications

• Proven production experience with React and TypeScript.
• Strong knowledge of HTML and CSS.
• Experience with complex state, APIs and asynchronous user flows.
• Accessibility and frontend performance expertise.
• Confidence with automated testing and modern build tooling.
• Ability to collaborate closely with designers and product managers.

Responsibilities

• Develop responsive product experiences in React and TypeScript.
• Create scalable component and state management patterns.
• Improve Core Web Vitals, runtime performance and bundle health.
• Build accessible interactions with keyboard and assistive tech.
• Define frontend testing across unit, integration and end-to-end layers.
• Use analytics and user feedback to improve real workflows.

Skills

React

TypeScript

Browser fundamentals

HTML & CSS

State management

Accessibility

Frontend performance

Automated testing

Build tooling

Collaboration with designers/product

Tools

Next.js

Job description

Nordic Investin is seeking a Senior Frontend Engineer (React + TypeScript) to own frontend architecture, performance, and accessibility for a high-value web product. You will collaborate with design, product, and backend engineers, delivering across testing, accessibility, and performance improvements in rapid delivery cycles.

You will work with a partner company and contribute to decision-making about maintainability and production behavior, while shipping hands-on frontend work.