Senior Full Stack Engineer to Health Tech Startup

About The OpportunityEvery 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 OutCollaborative Technical OwnershipDesign 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 regulationsOwn end-to-end feature development: From PostgreSQL schema design to React-based UI implementationInfluence infrastructure decisions in a scaling startup where engineering excellence drives real-world impactTechnical EnvironmentBackend: Node.js, TypeScript, PostgreSQL (SQL-first approach)Frontend: React, MUI, GraphQLInfrastructure: GCP, Infrastructure as Code (Pulumi), Graphile WorkerEngineering Philosophy:Automated testing is non-negotiable (Jest, e2e, CI/CD pipelines)Prioritise maintainability and scalability without over-engineeringIdeal Candidate ProfileSenior Full-Stack Expertise: 5+ years with Node.js/TypeScript and PostgreSQL (React experience preferred)SQL Mastery: Schema design, query optimisation, and performance tuningStartup Proven: Successfully shipped and iterated on products in fast-paced environmentsQuality Advocate: Experience writing comprehensive tests and collaborating with QA processesBonus point: Experience building AI agentsDifferentiators:Familiarity with QA frameworks or test automationBackground in regulated industries (healthcare, health-tech, fintech)DevOpsWhy Join Zymego?Mission-Driven WorkBuild 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 tasksDirectly addresses one of healthcare’s most persistent inefficienciesInclusive Team Culture that Supports Your GrowthJoin a gender-inclusive, multicultural teamCollaborate 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/techniquesWhy now?Growth Trajectory: The recently closed funding fuels international expansion and advanced feature developmentOwnership: Directly shape both product architecture and engineering practicesFlexibility: Hybrid/remote work with optional Stockholm office collaborationBenefits:Competitive salary (including stock options)6 weeks vacation + private healthcare coverageSEK 5000 health benefitPension planOur 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, MedfitInclude:LinkedIn/GitHub profileBrief note explaining your approach to balancing scalability and testabilityPriority given to candidates who demonstrate:A complex backend/system design challenge you solvedExperience implementing automated testing at scale