Senior Full Stack Engineer to Health Tech Startup

About the Opportunity Every day, 15% of healthcare appointments are lost to last-minute cancellations, while patients wait weeks or months for care. At Zymego, we are changing that. Our intelligent scheduling platform connects patients to real-time openings, reducing delays, easing staff workloads, and making healthcare more human. To date, we have saved clinics thousands of hours and shortened patient waiting times by over 1,700 years – and we’re just getting started. Zymego is a fast-growing startup backed by the Nordic venture capital firms Industrifonden, Spintop, and Icebreaker VC. We are currently expanding in Sweden and the UK and are now looking for a Senior Full-Stack Engineer who wants to help shape the future of digital healthcare. You will be joining a close-knit, diverse team with a mix of professional and cultural backgrounds, where we learn from each other every day. Why This Role Stands Out Collaborative Technical Ownership Design and optimise core systems: PostgreSQL schemas, GraphQL APIs (Postgraphile/TypeScript), and clinician workflows (React/MUI) Solve mission-critical challenges: Enhance scheduling algorithms, streamline clinic operations, and ensure compliance with healthcare regulations Own end-to-end feature development: From PostgreSQL schema design to React-based UI implementation Influence infrastructure decisions in a scaling startup where engineering excellence drives real-world impact Technical Environment Backend : Node.js, TypeScript, PostgreSQL (SQL-first approach) Frontend : React, MUI, GraphQL Infrastructure : GCP, Infrastructure as Code (Pulumi), Graphile Worker Engineering Philosophy : Automated testing is non-negotiable (Jest, e2e, CI/CD pipelines) Prioritise maintainability and scalability without over-engineering Ideal Candidate Profile Senior Full-Stack Expertise : 5+ years with Node.js/TypeScript and PostgreSQL (React experience preferred) SQL Mastery : Schema design, query optimisation, and performance tuning Startup Proven : Successfully shipped and iterated on products in fast-paced environments Quality Advocate : Experience writing comprehensive tests and collaborating with QA processes Bonus point : Experience building AI agents Differentiators : Familiarity with QA frameworks or test automation Background in regulated industries (healthcare, health-tech, fintech) DevOps Why Join Zymego? Mission-Driven Work Build technology that: Improves access to care for thousands of patients (we’ve already reduced cumulative wait times by 1,000+ years) Reduces burnout for healthcare workers by automating administrative tasks Directly addresses one of healthcare’s most persistent inefficiencies Inclusive Team Culture that Supports Your Growth Join a gender-inclusive, multicultural team Collaborate with colleagues from 5+ countries, where perspectives from healthcare, tech, and even professional sports (our founders’ background) converge to solve complex problems. Monthly innovation days to experiment with new tools/techniques Why now? Growth Trajectory : The recently closed funding fuels international expansion and advanced feature development Ownership : Directly shape both product architecture and engineering practices Flexibility : Hybrid/remote work with optional Stockholm office collaboration Benefits : Competitive salary (including stock options) 6 weeks vacation + private healthcare coverage SEK 5000 health benefit Pension plan Our Customer's Perspective “In addition to the time savings we see with Zymego, we also have much happier patients.” — Therese Varre Almesjö, Founder and GP, Gustafkliniken “We have reduced the number of unbooked appointments and decreased the time our staff spend filling gaps.” — Rebecca Spoonberg, Reception Manager, Medfit Include: LinkedIn/GitHub profile Brief note explaining your approach to balancing scalability and testability Priority given to candidates who demonstrate: A complex backend/system design challenge you solved Experience implementing automated testing at scale