CrawlJobs Logo

Senior Frontend / Fullstack Engineer – Web Team

Sweden, Stockholm · Job Posted January 29, 2026
Apply Position
Job Link Share

Job Description

Mentimeter is an engagement tool that turns presentations into conversations through real-time interactivity and clear visualizations. The goal is to help over 1 billion people listen, learn and work better together. The Web Team in the Foundations area builds the shared experience and technical foundations that the Mentimeter website stands on. The website is where millions of people first meet the brand, explore what Mentimeter can do, and begin their journey.

Job Responsibility

  • Define how the website experience feels, performs, and evolves
  • Hands-on engineering using TypeScript, Node, React, Next.js
  • Build systems, tooling, and workflows that enable teams like Marketing and Growth to work autonomously, quickly, and creatively without compromising technical quality
  • Take a leading role in shaping the long-term technical direction of mentimeter.com
  • Drive architectural decisions and set standards for a scalable, performant, and maintainable web platform
  • Advocate for accessibility, performance, SEO, and security
  • Help strengthen a culture of experimentation and data-driven decision making
  • Mentor peers
  • Contribute to engineering culture
  • Influence the broader direction of Mentimeter’s web ecosystem

Requirements

  • 6+ years of working on modern, scalable web applications
  • Deep knowledge of contemporary frontend technologies and frameworks
  • Ability to work across the stack when needed
  • Holistic thinking about architecture, performance, and long-term maintainability
  • Experience writing clean, thoughtful code
  • Thrive in cross-functional environments
  • Enjoy collaborating with marketing and design
  • Pride in building systems that enable others to succeed
  • Experience with CMS platforms, analytics tools and Ruby is a welcome bonus

Nice to have

Experience with CMS platforms, analytics tools and Ruby

What we offer

  • Diverse and inclusive work environment
  • Smart and driven colleagues
  • 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
  • Pension contributions

Looking for more opportunities?

Search for other job offers that match your skills and interests.

Similar Jobs for

Senior Frontend / Fullstack Engineer – Web Team

8 matching positions

Senior Software Engineer- Frontend/ Fullstack

Our team builds and manages the tools and services that power the lifecycle of c...
Location
Location
India , Bangalore
Salary
Salary:
Not provided
uber.com Logo
Uber
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • BS or MS in Computer Science, a related technical field, or equivalent practical experience
  • 7+ years of professional software engineering experience, with a strong focus on web development
  • Proven experience building and scaling complex web applications using Node.js, TypeScript, React, HTML, and CSS
  • Strong software design and coding skills, with a focus on maintainability and scalability
  • A keen eye for product design and a passion for delivering exceptional user experiences
  • Demonstrated ability to drive complex projects from concept through launch and ongoing iteration
  • Excellent problem-solving, architectural, and algorithmic thinking abilities
  • Deep commitment to code quality, reliability, and performance
  • Exceptional communication and collaboration skills, with the ability to partner effectively across all levels -- from engineers to senior leadership
Job Responsibility
Job Responsibility
  • Full-stack development in front-end and back-end Uber systems to support Marketplace Security needs
  • Manage a team of 3 Marketplace Security developers, to be hired along with this position
  • Partner with engineering teams across Uber to deliver new Marketplace Security features
  • Design, build, and scale systems that help keep Uber’s global community safe
  • Develop and maintain full-stack applications, manage business-critical databases and real-time services
  • Work closely with cross-functional partners to integrate security needs into Uber's marketplace configuration platform
  • Fulltime
Read More
Arrow Right

Senior Fullstack Engineer

Fullpath is an AI-first tech company in the automotive space with hubs across th...
Location
Location
Israel , Tel Aviv
Salary
Salary:
Not provided
fullpath.com Logo
Fullpath
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • BSc Computer Science from a top university
  • 7+ years of Software Development experience from a SaaS startup and at least 1-2 years in a Technical Leadership role
  • Strong hands-on experience with React (Frontend) and NodeJS (Backend) - must
  • Deep GenAI familiarity and adoption including daily hands-on experience using AI and emerging technologies (such as Cursor or ClaudCode) - a must
  • Strong SQL skills with databases such as PostgreSQL, MySQL, or similar
  • Knowledge of cloud platforms, preferably AWS, or similar services and tools, including experience with messaging services like RabbitMQ or SQS
  • Experience building and maintaining scalable web applications
  • Experience with supporting fast paced scaling Production Systems
  • Experience designing and working with microservices architecture
  • High-Agency Ownership
Job Responsibility
Job Responsibility
  • Write clean, high-quality, high-performance, maintainable code across both the frontend and backend
  • Ensure that the projects you work on meet business objectives and coding standards
  • Support the deployment and testing of new products and features
  • Collaborate with cross-functional teams to gather and analyze requirements, translating them into technical specifications
  • Design and implement APIs and integrations with third-party services to enhance system functionality
  • Optimize application performance through code profiling, monitoring, and refactoring as necessary
  • Implement automated testing frameworks to ensure code robustness and reliability
  • Participate in code reviews and provide constructive feedback to peers to foster continuous improvement
  • Stay updated with emerging technologies, best practices, and industry trends to drive innovation within the team
  • Assist in the establishment and enforcement of development standards and coding conventions
What we offer
What we offer
  • Learning and growth opportunities within a fast-paced tech startup environment
  • Clear career advancement path
  • Cibus and lots of yummy treats
  • Fulltime
Read More
Arrow Right

Senior Fullstack Engineer

Fullpath is an AI-first tech company in the automotive space with hubs across th...
Location
Location
Israel , Jerusalem; Tel-Aviv
Salary
Salary:
Not provided
fullpath.com Logo
Fullpath
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • BSc Computer Science from a top university
  • 7+ years of Software Development experience from a SaaS startup and at least 1-2 years in a Technical Leadership role
  • Strong hands-on experience with React (Frontend) and NodeJS (Backend)
  • Deep GenAI familiarity and adoption including daily hands-on experience using AI and emerging technologies (such as Cursor or ClaudCode)
  • Strong SQL skills with databases such as PostgreSQL, MySQL, or similar
  • Knowledge of cloud platforms, preferably AWS, or similar services and tools, including experience with messaging services like RabbitMQ or SQS
  • Experience building and maintaining scalable web applications
  • Experience with supporting fast paced scaling Production Systems
  • Experience designing and working with microservices architecture
  • High-Agency Ownership
Job Responsibility
Job Responsibility
  • Write clean, high-quality, high-performance, maintainable code across both the frontend and backend
  • Ensure that the projects you work on meet business objectives and coding standards
  • Support the deployment and testing of new products and features
  • Collaborate with cross-functional teams to gather and analyze requirements, translating them into technical specifications
  • Design and implement APIs and integrations with third-party services to enhance system functionality
  • Optimize application performance through code profiling, monitoring, and refactoring as necessary
  • Implement automated testing frameworks to ensure code robustness and reliability
  • Participate in code reviews and provide constructive feedback to peers to foster continuous improvement
  • Stay updated with emerging technologies, best practices, and industry trends to drive innovation within the team
  • Assist in the establishment and enforcement of development standards and coding conventions
What we offer
What we offer
  • Cibus and lots of yummy treats
  • Fulltime
Read More
Arrow Right

Senior Fullstack Engineer

Fullpath is an AI-first tech company in the automotive space. We are looking for...
Location
Location
Israel , Tel Aviv
Salary
Salary:
Not provided
fullpath.com Logo
Fullpath
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • BSc Computer Science from a top university
  • 7+ years of Software Development experience from a SaaS startup and at least 1-2 years in a Technical Leadership role
  • Strong hands-on experience with React (Frontend) and NodeJS (Backend)
  • Deep GenAI familiarity and adoption including daily hands-on experience using AI and emerging technologies (such as Cursor or ClaudCode)
  • Strong SQL skills with databases such as PostgreSQL, MySQL, or similar
  • Knowledge of cloud platforms, preferably AWS, or similar services and tools, including experience with messaging services like RabbitMQ or SQS
  • Experience building and maintaining scalable web applications
  • Experience with supporting fast paced scaling Production Systems
  • Experience designing and working with microservices architecture
  • High-Agency Ownership
Job Responsibility
Job Responsibility
  • Write clean, high-quality, high-performance, maintainable code across both the frontend and backend
  • Ensure that the projects you work on meet business objectives and coding standards
  • Support the deployment and testing of new products and features
  • Collaborate with cross-functional teams to gather and analyze requirements, translating them into technical specifications
  • Design and implement APIs and integrations with third-party services to enhance system functionality
  • Optimize application performance through code profiling, monitoring, and refactoring as necessary
  • Implement automated testing frameworks to ensure code robustness and reliability
  • Participate in code reviews and provide constructive feedback to peers to foster continuous improvement
  • Stay updated with emerging technologies, best practices, and industry trends to drive innovation within the team
  • Assist in the establishment and enforcement of development standards and coding conventions
What we offer
What we offer
  • Learning and growth opportunities within a fast-paced tech startup environment
  • Clear career advancement path, with the goal of growing into a Tech Lead position
  • Cibus and lots of yummy treats
  • Fulltime
Read More
Arrow Right

Senior Fullstack Engineer

Fullpath is an AI-first tech company in the automotive space. We are looking for...
Location
Location
Israel , Jerusalem; Tel-Aviv
Salary
Salary:
Not provided
fullpath.com Logo
Fullpath
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • BSc Computer Science from a top university
  • 7+ years of Software Development experience from a SaaS startup
  • At least 1-2 years in a Technical Leadership role
  • Strong hands-on experience with React (Frontend) and NodeJS (Backend)
  • Deep GenAI familiarity and adoption including daily hands-on experience using AI and emerging technologies
  • Strong SQL skills with databases such as PostgreSQL, MySQL, or similar
  • Knowledge of cloud platforms, preferably AWS, or similar services and tools
  • Experience building and maintaining scalable web applications
  • Experience with supporting fast paced scaling Production Systems
  • Experience designing and working with microservices architecture
Job Responsibility
Job Responsibility
  • Write clean, high-quality, high-performance, maintainable code across both the frontend and backend
  • Ensure that the projects you work on meet business objectives and coding standards
  • Support the deployment and testing of new products and features
  • Collaborate with cross-functional teams to gather and analyze requirements, translating them into technical specifications
  • Design and implement APIs and integrations with third-party services to enhance system functionality
  • Optimize application performance through code profiling, monitoring, and refactoring as necessary
  • Implement automated testing frameworks to ensure code robustness and reliability
  • Participate in code reviews and provide constructive feedback to peers to foster continuous improvement
  • Stay updated with emerging technologies, best practices, and industry trends to drive innovation within the team
  • Assist in the establishment and enforcement of development standards and coding conventions
What we offer
What we offer
  • Learning and growth opportunities within a fast-paced tech startup environment
  • Clear career advancement path
  • Cibus and lots of yummy treats
  • Fulltime
Read More
Arrow Right

Senior Fullstack Engineer

Join the Future of Commerce with Whatnot. We’re looking for a Senior Fullstack E...
Location
Location
United States , New York
Salary
Salary:
190000.00 - 230000.00 USD / Year
whatnot.com Logo
Whatnot
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Bachelor’s degree in Computer Science, a related field, or equivalent work experience
  • 5+ years of generalist software development experience in high growth startups
  • Backend Expertise: Proven track record of building end-to-end high-scale product experiences as a full-stack engineer
  • Experience with Python on backend, and/or Postgres databases is a plus
  • Web development experience with React, using GraphQL for API development, and modern frontend applications
  • Excellent product instincts—you first think about users rather than the best technical solution
  • You can mentor others, and prioritize building inclusive, supportive teams
  • Project owner—you’ve strong ownership instincts and can own projects from inception to production and beyond
  • You are known for shipping products and features lightning-fast
  • You’re an excellent problem solver and can operate autonomously
Job Responsibility
Job Responsibility
  • Help us grow Whatnot outside the US in all of our core international markets
  • Upleveling the international user experience across our entire product
  • Work across the entire stack and product to solve targeted user problems, unlock new features and grow our international footprint
  • Lead solutions end to end
  • Translate ambiguous business problems into clear technical solutions and drive delivery and experimentation
  • Creative problem-solving to balance development speed, product impact, and technical excellence
What we offer
What we offer
  • Generous Holiday and Time off Policy
  • Health Insurance options including Medical, Dental, Vision
  • Work From Home Support
  • Home office setup allowance
  • Monthly allowance for cell phone and internet
  • Care benefits
  • Monthly allowance for wellness
  • Annual allowance towards Childcare
  • Lifetime benefit for family planning, such as adoption or fertility expenses
  • Retirement
  • Fulltime
Read More
Arrow Right

Senior Fullstack Engineer

At Capi, we help businesses in emerging markets pay their international supplier...
Location
Location
United Kingdom , London
Salary
Salary:
Not provided
capimoney.com Logo
Capi Money
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Our tech stack: Typescript, React, NextJS, NodeJS, Express, PostgreSQL
  • A product mindset is core to how we build
  • A strong understanding of web development, frontend and backend best practices
  • Experience in a VC-backed or high-growth engineering team and building products used by customers
  • You are comfortable working in an early-stage startup environment with high pace, rapid growth, involvement in the entire product development process, and a high degree of ambiguity
  • Excellent written and verbal communication skills for expressing ideas, designs, and potential solutions with both technical and non-technical team members and customers
  • You care about our mission and solving the problems faced by African businesses
  • Based in London or Paris
Job Responsibility
Job Responsibility
  • Contribute to the product process from end-to-end, from ideation to building the UI, backend logic, deployment, feedback and measurement
  • Communicate internally and externally about new features, be it collecting feedback pre-implementation or explaining them on launch
  • Define and manage delivery milestones, ensuring alignment between engineering and product priorities
  • Build intuitive and performant web interfaces for business owners in Africa
  • Implement IT security and data protection best practices in a regulated environment
  • Proactively drive architectural decisions e.g., improving scalability, observability, and modularity of the codebase
  • Champion code quality through robust testing, documentation, and reviews
  • Observe opportunities for improvements internally to help automate our non-tech processes and add to our tech best practices to improve our output and efficiency. Including handling production incidents with confidence
  • Mentor junior engineers and contribute to their professional growth through pairing, reviews, and feedback
  • Represent engineering in cross-functional discussions (including Finance, Operations, Senior Leadership) to help translate business goals into technical plans
What we offer
What we offer
  • competitive salary, share options, and benefits
  • Fulltime
Read More
Arrow Right

Senior Fullstack Engineer - AI & Analytics

Our mission – and your opportunity – is to help solve the challenges faced in an...
Location
Location
Australia , Sydney
Salary
Salary:
Not provided
safetyculture.com Logo
SafetyCulture
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Proven experience delivering high-quality solutions across both backend and frontend systems
  • Deep expertise in modern web frameworks, API design, and scalable distributed systems—ideally using Go and React
  • A strong track record of delivering impactful features end-to-end, balancing usability, performance and maintainability, while contributing to estimation, planning within cross-functional collaboration
  • Strong communication and interpersonal skills, a growth mindset with a focus on continuous improvement, both in your work and in uplifting team performance through actions or feedback
  • A commitment to delivering quality solutions that meet customer needs and align with business goals
Job Responsibility
Job Responsibility
  • Design, build, and operate full-stack SaaS systems, including scalable APIs, secure data flows, and responsive, performant UIs
  • Own feature delivery end-to-end, including breaking down requirements, providing accurate time estimates, and actively contributing to planning and team discussions
  • Lead architectural decisions across client and server codebases, ensuring scalability, maintainability, and performance
  • Champion engineering excellence, mentor other engineers, and drive continuous improvement in tooling, testing, and developer experience
  • Apply a practical understanding of AI technologies, identifying opportunities to leverage machine learning or automation to enhance user experience or platform capabilities
  • Drive high-performance team outcomes by setting rigorous engineering standards, mentoring peers, and proactively improving team practices to enhance quality, velocity, and collaboration
  • Work in a hybrid working environment, including at our HQ based in Surry Hills, Sydney
  • Demonstrate SafetyCulture’s values: Think Customer, Open Honest Always, Better as a Team, Be Bold Bring Action
What we offer
What we offer
  • Equity with high growth potential, and a competitive salary
  • Access to professional and personal training and development opportunities
  • Participation in hackathons, workshops, and lunch & learn sessions
  • Community involvement, open source work, attending talks and events, and experimenting with new technologies
  • Fulltime
Read More
Arrow Right