I T

Full-Stack Engineer

Sweden
Company: Yazen
Published Oct 21, 2025

Role highlights

Contract type

Full Time

Schedule

Permanent

Experience

Mid

Work style

Remote

Key skills

This mid-level Full-Stack Engineer role requires strong proficiency in both front-end and back-end development, with a focus on React, Node.js, and modern JavaScript/TypeScript. Experience with React Native and Firebase is advantageous, supporting mobile and cloud-based solutions. The candidate should be skilled in writing clean, maintainable, and testable code, emphasizing performance, reliability, and user experience. Familiarity with CSS and front-end aesthetics is important. The role involves collaborating closely with designers, developers, and product teams, requiring excellent communication skills, especially for remote work. Candidates should demonstrate strong problem-solving abilities, creativity, and a proactive, hands-on approach to delivering solutions. Experience with GitHub for version control and Google Cloud Platform for infrastructure is expected. The position values curiosity, adaptability, and a passion for leveraging technology to improve healthcare outcomes, particularly in obesity treatment. Candidates should be comfortable with data-driven decision-making and open to feedback within a collaborative team environment. Self-management, prioritization, and timely delivery are essential. While based in Sweden is a plus, a valid work permit is required. The role offers the opportunity to contribute to a fast-growing, mission-driven healthcare startup with a culture of continuous learning and personal growth. Overall, the ideal candidate combines solid full-stack technical skills with strong interpersonal abilities and a commitment to high-quality, impactful software development in the health tech sector.

About the role

Full-Stack Engineer

Role Summary

  • Join Yazen Health to transform healthcare and redefine obesity treatment
  • Work in a fast-growing company ranked #2 fastest-growing in Europe (Sifted’s 2025 Startup Europe Leaderboard)
  • Be part of a small, passionate team making high-quality care accessible and effective

Responsibilities

  • Collaborate with designers, developers, and product teams to build seamless full-stack solutions
  • Develop and refine front-end and back-end features for performance, reliability, and aesthetics
  • Write clean, maintainable, and testable code
  • Explore and implement new technologies to improve efficiency and effectiveness
  • Troubleshoot issues and deliver empathetic solutions to enhance patient experience

Tech Stack

  • Front-end: React, React Native, Expo
  • Back-end: Firebase, Node.js
  • Tools & Infrastructure: GitHub, Google Cloud Platform (GCP)

What We Value

  • Passion for using technology to improve health
  • Curiosity and adaptability in a fast-paced environment
  • Proactive, hands-on attitude
  • Strong communication skills, especially for remote work
  • Collaborative spirit and openness to feedback
  • Comfort with data-driven decision making

Requirements

  • Experience with React and Node.js (React Native and Firebase are bonuses)
  • Solid understanding of modern JavaScript, TypeScript, and CSS
  • Strong problem-solving skills and creativity
  • Excellent communication and teamwork abilities
  • Ability to self-manage, prioritize, and deliver on time
  • Based in Sweden is a plus (valid work permit required)

Nice to Have

  • Initiative and self-direction
  • Obsession with quality and user experience
  • Love for learning, sharing, and collaborating
  • Desire to have real human impact through your work

Benefits

  • Mission-driven environment helping people live healthier lives
  • Flexible remote work with a transparent, trusting team
  • Culture of continuous learning and personal growth
  • Opportunity to join a fast-growing, innovative healthcare scale-up

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Yazen logo

Yazen

Design

Yazen Health is a digital caregiver focused on weight loss management via a combination of medical treatment and lifestyle changes. Our team of specialists; you...

Location
Sweden
Employees
51-200 employees
Website
www.yazen.com