Senior Frontend Developer TBA (fixed-term employment, parental leave cover)
Klaravik AB
📍 Karlstad
📋 Behovsanställning
🗓 Ansök senast 7 november 2026
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About the Role
As an Senior Frontend Developer, you will be responsible for developing and maintaining the websites that power our auction platforms. In this role, you'll build, optimise, and maintain critical user experiences that drive engagement on our online auctioning platform. Through a blend of strategic problem solving and coding, you'll contribute to positioning TBAuctions and its brands as leaders in the online auction industry.
You'll work closely with cross-functional teams across multiple locations, contributing to platform-wide technical decisions while growing your expertise in modern frontend architecture and user experience based optimisation.
This is a fixed-term position to cover a parental leave. The employment is expected to last for 7 months, with a preferred start date in mid-June.
You will be employed by Klaravik AB but will work with TBAuctions
What You Will DoDevelopment & Delivery
Design, develop, and maintain Next.js websites to handle auction browsing, real-time bidding, user dashboards, and payment flows
Write clean, performant code with a focus on user experience while keeping it reusable and maintainable
Implement responsive deigns using Tailwind CSS, optimising for all devices
Contribute to real-time features that power our live auction experiences
Performance & SEO
Optimise Core Web Vitals and implement strategic rendering patterns (SSR, SSG, ISR) to maximise performance and search visibility
Build SEO-friendly page structures with proper metadata, structured data, and semantic HTML
Implement and manage feature flags to enable safe, incremental rollouts and (in the future) A/B testing
Monitor and improve Lighthouse scores, ensuring fast, accessible user experiences
Cloud & DevOps
Deploy and maintain applications within our Azure cloud infrastructure
Develop and maintain CI/CD pipelines using Azure DevOps
Implement monitoring and error tracking to ensure application health and rapid issue resolution (Sentry, Grafana Cloud)
Work with Docker to ensure compatibility between servers
Work with Kubernetes to understand and diagnose our Next.js applications
Collaboration & Growth
Collaborate with local and international teams to deliver high-quality, scalable solutions
Participate in architectural discussions and contribute to frontend patterns and standards
Partner with product managers, designers, senior engineers, and architects to turn business needs into exceptional user experiences
Share knowledge and support continuous improvement within the team
What You BringTechnical Skills
Strong proficiency in React and Next.js with 3–5 years in frontend development
Deep understanding of Tailwind CSS and modern styling approaches
Solid grasp of SEO principles, including technical SEO, metadata management, and structured data
Experience with feature flag systems (LaunchDarkly, Unleash, or similar)
Familiarity with Azure services and cloud-native deployment patterns
Understanding of performance optimisation techniques and Core Web Vitals
Experience with CI/CD practices and tooling (Azure DevOps preferred)
Mindset & Soft Skills
A self-starter who doesn't wait to be told what to do, you spot opportunities and bring them to the team
A genuine team player who believes the best work happens together
A pragmatic, outcome driven approach to problem solving with user experience at the centre
Naturally curious with a things around the web, how can we improve by learning
Generous with your knowledge and ready to help colleagues succeed
Nice to Have
Experience with real-time data handling (WebSockets)
Familiarity with monitoring and observability tools
Experience working as part of an agile team (Scrum)
Understanding of accessibility standards (WCAG) and inclusive design
Exposure to headless CMS platforms or composable architectures
Experience with testing frameworks
Experience mentoring other developers
Details
Remote work from any location within Sweden is acceptable.
You need to have a valid right to work in Sweden. Unfortunately, we are not able to offer visa sponsorship for this role.
We are looking for someone who can work from Sweden for legal and tax reasons.
Salary: to be agreed upon
Start date: preferred mid June
As an Senior Frontend Developer, you will be responsible for developing and maintaining the websites that power our auction platforms. In this role, you'll build, optimise, and maintain critical user experiences that drive engagement on our online auctioning platform. Through a blend of strategic problem solving and coding, you'll contribute to positioning TBAuctions and its brands as leaders in the online auction industry.
You'll work closely with cross-functional teams across multiple locations, contributing to platform-wide technical decisions while growing your expertise in modern frontend architecture and user experience based optimisation.
This is a fixed-term position to cover a parental leave. The employment is expected to last for 7 months, with a preferred start date in mid-June.
You will be employed by Klaravik AB but will work with TBAuctions
What You Will DoDevelopment & Delivery
Design, develop, and maintain Next.js websites to handle auction browsing, real-time bidding, user dashboards, and payment flows
Write clean, performant code with a focus on user experience while keeping it reusable and maintainable
Implement responsive deigns using Tailwind CSS, optimising for all devices
Contribute to real-time features that power our live auction experiences
Performance & SEO
Optimise Core Web Vitals and implement strategic rendering patterns (SSR, SSG, ISR) to maximise performance and search visibility
Build SEO-friendly page structures with proper metadata, structured data, and semantic HTML
Implement and manage feature flags to enable safe, incremental rollouts and (in the future) A/B testing
Monitor and improve Lighthouse scores, ensuring fast, accessible user experiences
Cloud & DevOps
Deploy and maintain applications within our Azure cloud infrastructure
Develop and maintain CI/CD pipelines using Azure DevOps
Implement monitoring and error tracking to ensure application health and rapid issue resolution (Sentry, Grafana Cloud)
Work with Docker to ensure compatibility between servers
Work with Kubernetes to understand and diagnose our Next.js applications
Collaboration & Growth
Collaborate with local and international teams to deliver high-quality, scalable solutions
Participate in architectural discussions and contribute to frontend patterns and standards
Partner with product managers, designers, senior engineers, and architects to turn business needs into exceptional user experiences
Share knowledge and support continuous improvement within the team
What You BringTechnical Skills
Strong proficiency in React and Next.js with 3–5 years in frontend development
Deep understanding of Tailwind CSS and modern styling approaches
Solid grasp of SEO principles, including technical SEO, metadata management, and structured data
Experience with feature flag systems (LaunchDarkly, Unleash, or similar)
Familiarity with Azure services and cloud-native deployment patterns
Understanding of performance optimisation techniques and Core Web Vitals
Experience with CI/CD practices and tooling (Azure DevOps preferred)
Mindset & Soft Skills
A self-starter who doesn't wait to be told what to do, you spot opportunities and bring them to the team
A genuine team player who believes the best work happens together
A pragmatic, outcome driven approach to problem solving with user experience at the centre
Naturally curious with a things around the web, how can we improve by learning
Generous with your knowledge and ready to help colleagues succeed
Nice to Have
Experience with real-time data handling (WebSockets)
Familiarity with monitoring and observability tools
Experience working as part of an agile team (Scrum)
Understanding of accessibility standards (WCAG) and inclusive design
Exposure to headless CMS platforms or composable architectures
Experience with testing frameworks
Experience mentoring other developers
Details
Remote work from any location within Sweden is acceptable.
You need to have a valid right to work in Sweden. Unfortunately, we are not able to offer visa sponsorship for this role.
We are looking for someone who can work from Sweden for legal and tax reasons.
Salary: to be agreed upon
Start date: preferred mid June