Senior Software Engineer Job at Optimizely (Stockholm)

Senior Software Engineer

Optimizely

Location:
Sweden , Stockholm

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Not provided

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Job Description:

We are looking for a Senior Software Engineer for one of our core CMS product teams in central Stockholm, to help us shape the future experiences of Optimizely’s products and offerings. These are exciting times: We’re at the top of industry analyst rating, we have just released a SaaS version of our CMS with the innovative Visual Builder. Our engineers are excited to take the product they love and have been working on for many years to the next level. And here is your opportunity to join them, as we are expanding these teams. Optimizely is also at the forefront of AI innovation with Opal AI - our advanced AI platform that empowers marketers and developers to create, personalize, and optimize digital experiences with greater speed and intelligence than ever before. In this opportunity, we are looking for a senior engineer focused on full stack Javascript. The ideal candidate would contribute to the development of a world class SDK for our services in full stack Javascript, and ideally for additional tech stacks. You would be joining a group of teams with many very senior engineers with diverse skills, so personal and cultural fit will be a key differentiator alongside skills and experience. As a Senior Software Engineer you are a subject matter expert with high level of proficiency in your technical area. You use your skills and experience to mentor others and to make thoughtful technical tradeoff decisions. You are self-motivated and like to collaborate with your colleagues to find the best solution that solves the problem, considering architecture, cost of development and cost of ownership. We value building robust solutions that can live on and evolve over many years, while always prioritizing spending our time on what provides the most value possible to our customers. You are comfortable with working in a fast-moving agile environment and working closely with User Experience Designers, Product Managers, and other stakeholders. We work in hybrid mode and collaborate closely, in the office as well as from home.

Job Responsibility:

Design, implement and document simple, secure, scalable, maintainable, and cost-effective software solutions
Ensure product quality by developing and applying thorough automated testing techniques
Contribute to architecture and design discussions within your agile team as well as across teams and products
Contribute to project planning including requirements elicitation, design, task refinement and scoping
Manage incidents as well as escalations from partners and customers
Mentor and share with other engineers and team members
Pursue growth by maintaining an awareness of the state of technology, engineering techniques, and best practices

Requirements:

Bachelor's degree in Computer Science or similar, or corresponding level of relevant education
At least 5-7 years of experience working professionally with modern development practices
Multiple years of experience building full-stack web applications covering both client side and server side using modern frameworks
Significant experience with full stack Javascript websites, e.g. Nodejs/NextJS, server side rendering, static site generation etc, and are approaching expert level knowledge in this area
Experience with or at least are willing to work with other tech stacks, in particular ASP.NET and React
A real team player who enjoys solving problems together, and a great communicator

Nice to have:

Ideally you have built full-stack Javascript applications backed by a (headless) CMS or other backend accessed via GraphQL, REST or similar API
Ideally you have also built web applications on services as Vercel, Netlify or similar

What we offer:

We value work-life balance
We prioritize respecting local working hours, family commitments as well taking care of your physical and mental health

Additional Information:

Job Posted:
January 13, 2026

Employment Type:

Fulltime

Work Type:

Hybrid work

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