Senior Frontend Developer with strong Vue 3

Twoday; Københavns Kommune; On-site; DKK 700,000 - 950,000; Full time

Job summary

Twoday in Copenhagen is hiring a Senior Frontend Developer with strong Vue 3 experience to join a long‑term public sector digitalisation programme in Denmark.

You will work in an agile team on modern frontend applications, integrating with Java-based backends, and using SPA or Micro Frontends with Module Federation. This hands‑on role involves architecture input, design, coding, reviews and continuous improvement.

Qualifications

• Strong Vue 3 experience.
• Solid TypeScript experience.
• Experience building modern SPAs.
• Experience integrating REST APIs.
• Experience with Vite.
• Experience working in Agile teams.
• Fluent Danish, both spoken and written.
• Ability to work onsite full‑time in Copenhagen.

Responsibilities

• Develop and maintain modern frontend applications using Vue 3 and TypeScript.
• Build scalable, maintainable and reusable UI components.
• Develop both Single Page Applications and Micro Frontend solutions.
• Integrate frontend applications with Java-based backend services through REST APIs.
• Participate in refinement sessions, estimation, solution design and code reviews.
• Take ownership of development tasks from design through implementation.
• Collaborate closely with frontend and backend teams, architects, UX designers and Product Owners.

Skills

Vue 3

TypeScript

Single Page Applications (SPA)

REST APIs

Vite

Agile development

Danish language

Onsite Copenhagen

Job description

Permanent position at Twoday | Copenhagen

About The Role

We are looking for a Senior Frontend Developer with strong Vue 3 experience to join a long‑term public sector digitalisation programme in Denmark.

You will become part of an experienced agile development team building modern frontend applications integrated with Java‑based backend services. Depending on the solution, you will work on either traditional Single Page Applications (SPA) or Micro Frontends using Module Federation.

This is a hands‑on development role where you will contribute to architecture discussions, technical design, implementation, code quality and continuous improvements.

Responsibilities

• Develop and maintain modern frontend applications using Vue 3 and TypeScript
• Build scalable, maintainable and reusable UI components
• Develop both Single Page Applications and Micro Frontend solutions
• Integrate frontend applications with Java‑based backend services through REST APIs
• Participate in refinement sessions, estimation, solution design and code reviews
• Take ownership of one or more development tasks from design through implementation
• Collaborate closely with frontend developers, backend developers, architects, UX designers and Product Owners

Technical environment

You will work with technologies including:

• Vue 3
• TypeScript
• Vite
• REST APIs
• Docker
• Kubernetes
• Helm / Helmfile
• Vitest
• Cypress

The team also works with:

• Single Page Applications (SPA)
• Micro Frontends using Module Federation
• WCAG 2.2 accessibility
• Internationalisation (i18n)
• Agile development practices

Required qualifications

• Strong professional experience with Vue 3
• Solid experience with TypeScript
• Experience building modern Single Page Applications
• Experience integrating REST APIs
• Experience with Vite
• Experience working in Agile development teams
• Fluent Danish, both spoken and written, is a mandatory requirement
• Ability to work onsite full‑time in Copenhagen is also mandatory

Nice to have

• Experience with Micro Frontends and Module Federation
• Experience with Docker, Kubernetes and Helm
• Experience with automated testing using Vitest and/or Cypress
• Experience implementing accessible solutions (WCAG)
• Experience with internationalisation (i18n)
• Experience working on large enterprise or public sector solutions
• Understanding of Java‑based backend environments

Practical information

• Location: Onsite in Greater Copenhagen area
• Start date: As soon as possible
• Employment type: Permanent employment

Working at Twoday

Twoday is a leading technology consulting company specializing in applied AI and advanced engineering. With around 2,300 experts in AI, data, digital engineering, and cloud engineering, we cut through complexity, remove uncertainty, and prove the value of technology.

Our purpose is to create a better tomorrow through AI and technology. We strengthen private and public organizations across energy and utilities, financial services and insurance, industrials and manufacturing, health and life sciences, and government.

However, our greatest strength isn't the technology we work with. It's the people behind it. Every day, they bring together expertise, curiosity, and determination to help our customers solve complex challenges and create lasting value.

Diversity and inclusion

We are committed to building an inclusive and diverse workplace where everyone is treated with respect and has equal opportunities. Our recruitment decisions are based on competencies, experience, and individual merit.

We are looking for people who are engaged, meet most of the criteria, and are motivated to grow in the role.