Senior Fullstack Engineer Jobs

Mentimeter

Location:
Sweden, Stockholm

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Not provided

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Job Description:

Mentimeter is an engagement tool with a clear goal in mind. To turn presentations into conversations. Through real-time interactivity and clear visualizations, we get people to participate, engage and become more productive. Transforming all those passive meetings, airless classrooms and drawn out trainings into valuable and memorable moments. We’re looking for a Senior Fullstack Engineer to help us shape the future of audience insights at Mentimeter. Join our Results team and play a key role in delivering AI-powered, meaningful results to millions of users.

Job Responsibility:

Help shape the future of audience insights at Mentimeter
Play a key role in delivering AI-powered, meaningful results to millions of users
Build how users experience the outcome of a Mentimeter session
Help users understand and learn from the input they collect
Enhance the presentation and interpretation of results
Explore how AI can assist users in understanding their data more effectively
Make it simple for anyone using Mentimeter to draw conclusions, share learnings, and take action based on their results
Actively engage in product and design discussions, contribute ideas, and challenge the status quo
Enjoy the entire product development chain, from ideating brand new ideas and breaking down designs into feasible work, through writing and testing the code, to ensuring it is efficiently deployed to production
Deliver value to our users
Scale and help your juniors
Mentor others and get motivated by seeing them grow not only as developers but as engineers driving the product forward

Requirements:

Minimum 8 years of experience as a software engineer, with solid understanding of product development
Likely holds a Master’s degree in a relevant engineering field
Interested in AI and eager to learn and experiment with how it can elevate user experience
Experience with Python, LLM integrations, or prompt design is a plus (not required)
A reliable, high-performing individual contributor with strong ownership and initiative
Comfortable with change and short feedback loops
Passionate about: Software development
Scalable architecture
Code quality, testing, and automation
Excellent communication skills
able to work both independently and collaboratively
Brings a curious mindset and a willingness to learn and share knowledge
Tech stack & tools: Frontend: React (Next.js, TypeScript)
Backend: Ruby (not Rails)
AI: SQS-driven Python service, using OpenAI as the LLM provider
Other technologies: Tailwind CSS, Node.js, Redis, PostgreSQL, Cloudflare, AWS

Nice to have:

Experience with Python, LLM integrations, or prompt design
Knowing Ruby
Familiarity with the listed tech stack

What we offer:

Diverse and inclusive work environment
Continuous professional development
Access to a leadership program (including external personal coach)
Relevant education
Career opportunities in a growing company
Healthy view on work-life balance
Competitive compensation and benefits package, including pension contributions

Additional Information:

Job Posted:
December 10, 2025

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Senior Fullstack Engineer